• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Electric energy generation system comprising: - an alternator (1) to be coupled to a drive system (7), delivering an AC voltage to an output bus (10), - a reversible AC / DC converter (2) whose AC bus (6) is connected to the output bus (10) of the alternator (1), - an electrical storage element (3) connected to the DC bus (9) of the converter (2), - a controller ( 4) arranged to react to a transient load shedding or load impact regime by controlling the converter (2) so as to draw energy from the alternator output bus (10) and the stored in the storage element (3) in case of load shedding, and to draw energy from the storage element (3) and inject it into the output bus (10) in the event of an impact of charge, the converter (2) being controlled to inject harmonic currents compensation currents on the AC bus (10) of the alternator (1).
    公开号:FR3038796A1
    申请号:FR1556497
    申请日:2015-07-09
    公开日:2017-01-13
    发明作者:Emile Mouni；Philippe Manfe；Faycal Bensmaine；Slim Tnani；Gerard Champenois
    申请人:Universite de Poitiers；Moteurs Leroy Somer SA；
    IPC主号:
    专利说明:

    The invention relates to the production of electrical energy using an alternator mechanically coupled to a drive motor. The alternator is conventionally equipped with a voltage regulator and the drive motor is controlled according to the requested power.
    Load impacts as well as load shedding can occur and the power components of the alternator are dimensioned accordingly.
    This can result in oversized components compared to the rated operating speed, which affects the price of the installation.
    There is thus a need to reduce the size of the power components of the power generation installation.
    It is also desirable to improve the behavior of the installation in the event of a transient regime, in particular during load shedding and / or load impacts.
    There is still an interest in reducing the intensity of the harmonic currents produced by the installation in order to meet the most stringent standards, especially in case of injection of the current produced on the network. The invention attempts to meet all or part of these needs and it achieves this through an electromechanical system comprising: - an alternator to be coupled to a drive system, delivering an AC voltage to an output bus, - a reversible converter AC / DC whose AC input / output is connected to the output bus of the alternator, - an electrical storage element connected to the DC input / output of the converter, - a controller arranged to react to a transient load shedding regime or charge impact, by controlling the converter so as to draw energy from the alternator output bus and store it in the storage element in the event of load shedding, and to collect energy in the storage element and to inject it on the output bus in case of load impact. The AC input / output of the converter is still called AC bus, and the DC input / output is called DC bus. The invention improves the response of the system under transient conditions.
    The converter is advantageously controlled to inject harmonic currents compensation currents on the AC output bus of the alternator.
    Preferably, the alternator is three-phase.
    In the system according to the invention, the output voltage of the alternator serves not only to supply the load or charges connected to it but also to charge the storage element via the reversible converter.
    This storage element is preferably composed of a super-capacitor but any other storage means is within the scope of the invention, such as a conventional capacitor or a battery.
    The reversible converter allows the transformation of the AC voltage into DC voltage when charging the super-capacitor or other storage element, ensuring a rectifier function in normal operation or during a load shedding. The invention makes it possible to avoid an overvoltage on the output bus during load shedding, or at least to reduce the amplitude thereof.
    During a load impact, the converter performs an inverter function and limits the voltage dip by injecting the energy taken from the supercapacitor or other storage element into the AC bus.
    The electronic converter can use electronic switches such as IGBTs, but any other electronic component controlled is within the scope of the invention.
    The super-capacitor can be formed by a single component or a set of components electrically connected in series and / or in parallel, so as to achieve the insulation voltage and / or the desired capacity.
    The system preferably comprises a passive filter, this passive filter comprising an inductance connected between each phase of the output bus of the alternator and a corresponding phase of the input / output AC of the converter. This passive filter is designed to suppress high frequencies.
    The converter may be of the "triple boost" type, that is to say have three arms each having an inductance Lf connected by a first terminal to a first terminal of the storage element, a first electronic switch connected to a second inductance terminal Lf and a corresponding phase of the input / output AC of the converter, a second electronic switch connected to the second terminal of the inductor Lf and a second terminal of the storage element, and a capacitor balancing circuit Cf arranged between the corresponding phase of the input / output AC of the converter and the second terminal of the storage element.
    This structure can reduce the level of DC voltage across the storage element, and the cost thereof.
    Examples of "triple boost" converters are for example disclosed in US7596008B2 and US8737098B2.
    As a variant, the converter may be of the multilevel type, for example at p levels, p being an integer greater than 2. The converter may thus comprise three arms each comprising a first group of p switches electrically connected in series between a terminal of the storage element and a phase of the AC bus of the converter, and a second group of p electrical switches connected in series between the same phase of the AC bus of the converter and the other terminal of the storage element.
    Each arm may comprise p-1 balancing capacitors, each balancing capacitor being connected by a terminal between the nieme and n + one electronic switches of the first group, counted from the respective phase of the AC bus and the other terminal between the nieme and n + lieme electronic switches of the second group, counted from the same phase of the bus AC.
    Multilevel converters with floating capabilities are described in US8144491B2 and US20130128636A1. The balancing capacitors may be conventional capacitors, supercapacitors or batteries.
    Compared to the "triple boost" converter structure, the multilevel structure reduces fluctuations in the output voltage of the inverter and allows the system to use passive filtering with lower value inductors, which reduces the volume, mass and cost of the passive filter.
    The converter is controlled so as to react to load impacts and load shedding by means of a controller which sends it respective control signals Sa, Sb, Sc for each of the phases, and which analyzes the currents and the voltage on the AC bus of the converter.
    The control signals Sa, Sb, Sc of the converter are for example generated during the implementation of a control method of the converter comprising the following steps: - active and reactive component calculation id, iq of the three-phase current ia, ib , ic of the AC bus of the converter, preferably in a rotating Park reference of the same frequency, - calculation of active and reactive currents of reference id *, iq * in the same Park reference, - calculation of reference voltages βφ from id ", iq" differences between the active and reactive reference currents id *, iq * and the active and reactive components id, iq of the current ia, ib, ic of the AC bus of the converter, and - calculation of control voltages of the power transfers ma, mb, mc of the converter from the reference voltages βφ β ^ preferably by reverse transformation of Park in the three-phase reference of the AC bus current of the converter ia, ib, ic.
    The active and reactive currents of reference id *, iq * can be obtained from the active and reactive components iid, iiq of the output current of the system iia, iib, iic, preferably in the same reference frame of Park.
    Preferably, the storage element is solicited discharge in transient state.
    To do this, the active component im of the output current of the system iia, iib, iic is advantageously filtered by a filter to eliminate the high frequencies and the DC component to prevent the converter exchanging energy in steady state .
    Preferably, each of the active and reactive components iid, iiq of the output current of the system iia, iib, iic is filtered by a filter, whose cutoff frequency can be 100 times lower than the switching frequency of the switches.
    In a variant, the reactive component iiq of the output currents of the system iia, iib, iic is filtered so as to obtain a reactive current% in the null alternator.
    Thus, the invention makes it possible to compensate the reactive power, with the converter, and thus to obtain a unit coscp seen from the alternator.
    Quantities other than the output currents of the system iia, iib, iic can be used for calculating the active and reactive reference currents id *, iq *. This can reduce the number of sensors, including current. For example, the active and reactive reference currents id *, iq * can be calculated respectively as a function of at least the speed Ω of the drive system and the drive current if of an exciter of the alternator. This calculation is for example illustrated in "Synchronous machines - excitation. Engineering Techniques, D3545, 1997 "by P. Wetzer.
    In addition, the converter is controlled to inject harmonic currents compensation currents on the AC output bus of the alternator. Preferably, the converter comprises at least one active filter function for generating control voltages of these electronic switches inducing compensation of the harmonic currents. These control voltages can be added to the control voltages of the power transfers for obtaining control signals Sa, Sb, Sc of the converter.
    This makes it possible to cancel the harmonic currents in the alternator with the static converter by performing active filtering of harmonics of currents coming from a non-linear load. The invention also makes it possible to cancel the harmonic currents in the static converter by producing a "plug" circuit for the voltage harmonics originating from the alternator and / or the non-linear load.
    The harmonic current compensation control voltages can be obtained at least by calculation of the active and reactive components idn, of the output currents of the alternator ipa, iPb, ipc, preferably in a rotating Park reference, of frequency n times greater than the frequency of the three-phase reference, n being an integer greater than 2. This makes it possible to reduce, and better cancel, the harmonic currents in the alternator.
    This active filtering principle can be applied to all harmonic currents that one wishes to compensate. Just multiply this compensation structure and add all the control voltages in the three-phase reference. Any combination of harmonic filtering composed of at least one active filter thus comes within the scope of the invention.
    For example, the control voltages of the harmonic currents can also be calculated from the active and reactive components of the current ia, ib, ic of the AC bus of the converter in a rotating Park reference, of frequency n times higher than the frequency of the three-phase reference, n being an integer greater than 2. This makes it possible to prevent the harmonic voltages of the three-phase network created by the alternator from producing harmonic currents in the converter.
    The value of the active reference current id * can be deducted from a control current of the storage element Idvoc before being used for calculating the reference voltages pq, pd in order to avoid exceeding a threshold of a predetermined safety voltage, this control current Idvoc being a function of at least the voltage Voc at the terminals of the storage element and the direct nominal current Idn of the alternator. The invention will be better understood on reading the following detailed description, non-limiting examples of implementation thereof, and on examining the appended drawing, in which: FIG. Schematic representation of a system according to the invention, in the case of a three-phase generator, - Figure 2 shows a converter structure of the triple boost type, - Figure 3 shows a multilevel converter structure to (p + 1) levels for p cells, - Figure 4 is an example of a control scheme for management of the storage element during the transient phases, - Figure 5 is a view similar to Figure 4, a variant of the diagram. control with a free reference for the reactive power allowing the user to choose any level of reactive power to be compensated, - figure 6 shows a variant of the control scheme from a model based on the rotation speed of the group and the excitation current of the alternator; FIG. 7 shows a control structure of the harmonic currents with a view to performing active filtering; FIG. 8 illustrates a method of managing the voltage; at the terminals of the supercapacitor, FIG. 9a illustrates an example of a method for charging the supercapacitor with a safety function, and FIG. 9b illustrates an example of thresholds for tripping the load and for making the system in safety. depending on the voltage across the Vdc storage element
    FIG. 1 shows an example of an installation according to the invention for producing energy delivered to an output bus 10 connected to the three-phase network or to one or more loads R. The installation comprises a drive means 7 such as a heat engine for example, or any other drive means, wind or water. The drive means 7 rotates the rotor of an alternator 1, also called a generator, comprising an exciter supplying a main inductor disposed to the rotor, the main stator armature being connected to the output bus 10. The alternator 1 is rotated at a controlled speed, but the output bus 10 may be subjected to load impacts or load shedding. The installation comprises a reversible converter AC / DC 2 controlled by a controller 4, and a storage element 3.
    The controller 4 can know, thanks to current sensors in the example of FIG. 1, the current in each of the phases 5 of the load R and the current of each phase of the AC bus 6 of the converter 2, as well as the voltage of each of the phases of the output bus 10 of the alternator 1.
    In the example illustrated in FIG. 1, each phase of the AC bus of the converter 2 comprises an inductance 8, in series between the converter 2 and the corresponding phase of the output bus of the alternator 1. The dimensioning of these inductors 8 depends on the power of the installation.
    In normal operation, the controller 4 regulates the voltage of the alternator 1 by detecting the voltage of the output bus 10 of the alternator 1.
    In the case of a conventional wound exciter, the controller 4 may be provided with a power element enabling it to supply the excitation inductor with the excitation current required to ensure the desired regulation of the output voltage of the the alternator 1.
    To ensure the charging / discharging of the storage element 3, the controller sends control commands to the reversible electronic converter 2. To do this, a continuous supervision of the charging / discharging voltage Vdc, charging / discharging currents of the storage element 3, as well as the transient state (impact, load shedding) of the system is achieved.
    During load shedding, a charge order of the storage element 3 is given to allow the generator voltage overshoot to be reduced as much as possible. The storage element 3 is also refilled when the level of the storage element 3 is below certain predefined thresholds. The discharge command is given during load impacts, to limit the voltage drop across the alternator 1, or when the level of the storage element 3 is greater than a predefined threshold.
    The control commands can be sent wired or wireless without departing from the scope of the present invention.
    The controller 4 also provides, in the illustrated example, the communication with the drive motor 7, advantageously allowing an anticipation of the possible speed variation due to impact or load shedding. Indeed, thanks to the measurement of the output current of the system iia, iib, iic and that exchanged with the storage element 3, the controller 4 can estimate the power involved and determine a set point to anticipate admission motor fuel to limit disturbances on the alternator output bus during a transient regime.
    The controller 4 thus advantageously supervises: the control of the exchanges of active and reactive powers on the one hand between the three-phase network created by the alternator 1 and on the other hand the one or more charges R, using the three-phase converter 2 connected to the DC storage element 3, the management of the harmonic currents provided by the electromotive force of the machine or by a nonlinear load R connected to the alternator 1 and in the case where the storage consists of a super-capacitor, the management of the voltage 9 at the terminals of this element.
    FIG. 2 illustrates a system comprising a converter 2 of the "triple boost" type.
    The converter 2 comprises three arms 12 each having an inductance Lf connected by a first terminal to the positive terminal 31 of the storage element 3, a first electronic switch Ta, Tb or Tc connected between a second terminal of the inductance Lf and a corresponding phase a, b or c of the AC bus of the converter, a second electronic switch Ta ', Tb' or Tc 'connected between the second terminal of the inductor Lf and the negative terminal 32 of the storage element 3 and a balancing and filtering capacitor Cf arranged between the corresponding phase of the AC bus of the converter and the negative terminal 32 of the storage element 3.
    The currents ia, ib, and ic of the AC bus 6 of the converter 2 are injected onto the output bus 10 of the alternator 1, the latter delivering a three-phase current ipa, iPb, and ipc for the respective phases a, b and c .
    The three-phase output current of the system iia, iib and iic can also be measured, for example by sensors 5.
    The controller 4 controls the converter 2, can also be configured to act on the speed controller of the heat engine 7 and / or on the voltage regulator of the alternator 1.
    FIG. 3 illustrates a variant of p-cell converter, p being an integer greater than 2.
    The converter comprises three arms 22 each comprising a first group of p switches Kli, Kl2 ... Klp electrically connected in series between a positive terminal 31 of the storage element 3 and a phase of the AC bus of the converter, and a second group p electronic switches Kli ', K12' ... K1P 'connected in series between the same phase of the AC bus of the converter and the negative terminal 32 of the storage element 3.
    Each arm 22 may comprise p-1 balancing capacitors Cf, 2p IGBT, each balancing capacitor Cf being connected by a terminal between the nieme and n + 1 electronic switches of the first group counted from the respective phase of the AC bus and by the other terminal between the nlth and n + th electronic switches of the second group, counted from the same phase of the bus AC.
    The balancing capacitor Cf connected between the nieme and n + 11th electronic switches of the first group counted from the respective phase of the AC bus and the other terminal between the nth and n + 11th electronic switches of the second group has a voltage of nVdC / p, where VdC represents the voltage across the storage element 3.
    The basic control of active and reactive power exchanges is shown in FIG.
    For a three-phase fixed amplitude network, the power control returns to active and reactive current control. These currents can be controlled in a Park Rdq reference synchronous with the single voltage going from the first phase of the three-phase network, but the use of any of the other phases is within the scope of the invention. A phase locked loop 30 may be used for synchronization.
    The control structure can be arranged to generate active currents id * and reactive iq * of reference in the reference of Park Rdq, and then to enslave them to the active and reactive components id and iq, obtained by transformation of Park in the same referential Rdq , currents ia, ib, ic actually exchanged by the converter 2 with the network, by calculating the three cyclic ratios of the reversible converter 2.
    The generation of the reference currents id * and iq * can be generated from the active components iid and reactive iiq output currents of the charge R in the Park Rdq reference frame. The active component iid is filtered to eliminate the high frequencies and the DC component of the active current in order to prevent the reversible converter 2 from exchanging active or reactive energy in steady state. Thus, the active current id * only takes into account the transient state of the load (impact or load shedding) and thus makes it possible to solicit the storage system 3 only in the transient state. The reactive component iq * can be treated in the same way as the active component id *, in order to minimize the solicitation time of the reversible converter 2.
    In one variant, the reactive power is compensated by modifying the structure of the filter of FIG. 4 which generates iq *, which makes it possible to completely compensate the reactive power exchanged with the load and to obtain a reactive current iqp in the zero alternator. . If necessary, the compensation may be arbitrary, the user having the possibility of defining the level of reactive current that he wishes to compensate, as illustrated in FIG.
    Another alternative generation of reference currents id * and iq * is to use other measured quantities. This makes it possible to dispense with the measurement of the output currents of the system iia, iib, and iic. One can take the information of the variation of the torque by the measurement of the variation of velocity Ω and the information of the variation of the magnetic state of the machine by the measurement of the exciter excitation excitation current, as illustrated in Figure 6. From the measurement of the speed of the rotating group and a mathematical model 100 of the system, it is possible to calculate a variation of the torque on the alternator and to deduce the variation of the active current. in the idP alternator. The reactive current in the alternator iqp can be calculated from the measurement of the excitation current of the exciter and the mathematical model 110 of the system. These calculations can also be found in P. Wetzer's publication. "Synchronous machines - excitation. Engineering Techniques, D3545, 1997 "mentioned above. Thus, we can deduce the two references id * and iq *, from the currents of the calculated alternator (idPetiqp) and the currents (id and iq) of the converter (2) and then the regulation function is identical to the command basic. A combination of these two variants remains within the scope of the present invention.
    To develop the control signals Sa, Sb and Sc of converter 2, the reference currents id * and iq * are compared with the active and reactive components id and iq of the three-phase current ia, ib, ic measured at the output of the reversible converter 2 , obtained after a transformation in the Park Rdq landmark. The current error is processed by a regulator 33, of the PID type for example, which generates voltage references β (ι and β (in the Park reference, which, after inverse transformation of Park in the three-phase reference Rabc, give the control voltages of the power transfers ma, mb and mc in the latter reference mark Finally, a pulse width modulation function (PWM) 34 makes it possible to develop the signals Sa, Sb and Sc to control the reversible converter 2.
    The system is advantageously arranged to act on the harmonic currents delivered by the machine or induced by a non-linear load, thanks to the active filtering function possible with the structure described in the present application.
    An example of the command for the active filtering function is described in FIG. 7. The currents ipa, iPb, ipc measured at the output of the alternator are transformed into a Park Rndq reference of frequency n times greater than the fundamental frequency of the current three-phase ia, ib, ic of the AC bus of the converter, the transformed currents being respectively combined with a filtering to extract the amplitude of the harmonic n in the two axes dn and qnde this Park mark Rndq. These extracted currents idn and iqn are then slaved to zero references so as to act on the output voltages of the regulator and sent to the input of a regulator 41, for example of the PID type or other advanced regulator structure, whose outputs are added to the previous operation of the converter 2 correspond to the voltages to be delivered by the converter 2 in this Park Rndq reference. An inverse Park transformation, at the speed and in the direction of the harmonic n, makes it possible to obtain the harmonics n compensation control voltages V * nabc in the three-phase reference point Rabc. These can be added to the voltages. ma, nih and mc delivered by the previous command, which makes it possible to act on the active and reactive power transfers.
    One variant consists in considering the currents of the converter instead of the currents of the alternator, that is to say ia, h, V instead of άΊρα, ipb, ipc, illustrated in FIG. to produce purely sinusoidal currents at the fundamental frequency and to prevent the harmonic voltages of the three-phase network created by the alternator from producing harmonic currents in the converter. This last command is equivalent to a plug circuit for the voltage harmonics coming from the main generator with its load.
    This active filtering principle can be applied to all the harmonic currents that it is desired to compensate, by reproducing the compensation structure and adding all the resulting voltages to obtain the control voltages of the converter.
    Whatever the structure of the converter and the control laws applied, it is desirable to control the state of charge of the super-capacitor, given by its voltage Vdc As it is an active current in the Park reference which can modify this state of charge, it suffices to modify the active reference current id * by cutting off a current making it possible to act on the voltage Vdc. It is necessary to provide a safety stop so as to avoid exceeding the maximum voltage for the super-capacitor while maintaining the minimum voltage to ensure the correct operation of the converter 2.
    FIGS. 8, 9a and 9b illustrate an example of this control of the voltage Vdc of the super-capacitor.
    The thresholds al%, a2%> and a3% representing system output current or discharge levels with respect to the direct nominal current Idn of the alternator, these thresholds being adjustable in the range ± 100% without departing from the scope of the invention
    The values al, a2 and a3 are determined experimentally to avoid activating the security and not disturbing the operation of the hybrid function too much.
    An example of controlling the average current of the supercapacitor is to deliver an amplitude and a sign of Mvdc depending on the voltage Vdc according to programmed thresholds and to apply a comparison algorithm by adding a hysteresis at the thresholds to avoid an effect beat. A safety output gives a logic true or false level to allow a current in the super-capacitor or prohibit it if the thresholds are reached; when security is active then Id = 0. The voltage thresholds as well as the system output and discharge current levels can be modified without departing from the scope of this invention.
    权利要求:
    Claims (17)
    [1" id="c-fr-0001]
    1. System for generating electrical energy comprising: - an alternator (1) to be coupled to a drive system (7), delivering an AC voltage to an output bus (10), - a reversible AC / DC converter ( 2) whose AC bus (6) is connected to the output bus (10) of the alternator (1), - an electrical storage element (3) connected to the DC bus (9) of the converter (2), - a controller (4) arranged to react to a transient load shedding or load imparting regime by controlling the converter (2) so as to draw power on the output bus (10) of the alternator (2) and storing it in the storage element (3) in the event of load shedding, and taking energy from the storage element (3) and injecting it into the output bus (10) in case of load impact, the converter (2) being controlled to inject harmonic currents compensation currents on the AC bus (10) of the alternator (1).
    [2" id="c-fr-0002]
    2. System according to claim 1, the storage element (3) being solicited discharge in transient state.
    [3" id="c-fr-0003]
    3. System according to claim 1 or 2, the storage element (3) being a super-capacitor.
    [4" id="c-fr-0004]
    4. System according to any one of the preceding claims, comprising a passive filter (8), the passive filter (8) having an inductance connected in series between each phase of the output bus (10) of the alternator (1) and a corresponding phase of the AC bus (6) of the converter (2).
    [5" id="c-fr-0005]
    5. System according to any one of the preceding claims, the converter (2) having three arms (22) each comprising a first group of (p) switches (Kh, Kl2, Kl3 ... Klp, K2i, K22, K23. ..K2P, K3i; K32, K33 ... K3P) electrically connected in series between a terminal (31) of the storage element (3) and a phase of the AC bus (6) of the converter (2), and a second group of p switches (Klk; K12 '; K13' ... K1P ', Κ2Γ; K22'; K23 '... K2P', K3i '; K32', K33 '.., K3P') electrically connected in series between the same phase of the AC bus (6) of the converter (2) and the other terminal (32) of the storage element (3), p being an integer greater than 2.
    [6" id="c-fr-0006]
    6. System according to the preceding claim, each arm (22) comprising p-1 balancing capacitors (Cf), each balancing capacitor being (Cf) connected to a first pole between the nieme and n + lieme switches of the first group , counted from the respective phase of the AC bus (6) and on a second pole between the nieme and n + 1th switches of the second group counted from the same phase of the AC bus (6).
    [7" id="c-fr-0007]
    7. System according to any one of claims 1 to 4, the converter (2) having three arms (12) each having an inductance (Lf) connected by a first terminal to a first terminal (31) of the storage element. (3), a first electronic switch (Ta, Tb, Tc) connected to a second terminal of the inductor (Lf) and to a corresponding phase of the AC bus of the converter, a second electronic switch (Ta ', Tb', Tc ') connected to the second terminal of the inductor (Lf) and to a second terminal (32) of the storage element (3), and a balancing capacitor Cf arranged between the corresponding phase of the AC bus of the converter and the second terminal (32) of the storage element (3).
    [8" id="c-fr-0008]
    8. System according to any one of the preceding claims, wherein control signals (Sa, Sb, Sc) of the converter 2 are generated during the implementation of a drive method of the converter 2 comprising the following steps: - calculation of active and reactive components (id, iq) of the three-phase current (ia, ib, ic) of the AC bus (6) of the converter (2), preferably in a Park reference (Rdq) of the same frequency, - calculation of active and reactive currents of reference (id *, iq *) in the same mark of Park (Rdq), - calculation of reference voltages (pq, pd), starting from the differences between the active and reactive currents of reference (id *, iq *) and active and reactive components (id, iq) of the AC bus current of the converter (ia, ib, ic), - calculation of control voltages of the power transfers (ma, mb, mc) of the converter from the reference voltages (pq, pd), preferably by inverse transformation of Park in the reference e three-phase (RabC) converter AC bus current (ia, ib, ic) ·
    [9" id="c-fr-0009]
    9. System according to claim 8, active and reactive reference currents (here *, iq *) being obtained from the active and reactive components (iid, iiq) of the output current of the system (iia, iib, iic), in the same landmark of Park.
    [10" id="c-fr-0010]
    10. System according to claim 2, the active component (iid) of the output current of the system (iia, iib, iic) being filtered by a filter to eliminate the high frequencies and the DC component to prevent the converter exchange steady state energy.
    [11" id="c-fr-0011]
    11. System according to claim 10, each of the active and reactive components (iid, iiq) of the output current of the system (iia, iib, iic) being filtered by a filter in order to eliminate the high frequencies and the DC component in order to avoid that the converter (2) exchange energy in steady state.
    [12" id="c-fr-0012]
    12. System according to claim 10, the reactive component (iiq) of the output current of the system (iia, iib, iic) being filtered so as to obtain a zero reactive current (iqp) on the alternator.
    [13" id="c-fr-0013]
    13. System according to any one of claims 1 to 8, active and reactive reference currents (id *, iq *) being calculated respectively as a function of at least the speed (Ω) of the drive system and the current d excitation (if) of an alternator exciter.
    [14" id="c-fr-0014]
    14. System according to any one of the preceding claims, the converter comprising at least one active filter function for generating harmonic current compensation control voltages (V * nabc), the latter being added to the power transfer control voltages. (ma, nib, mc) for obtaining control signals (Sa, Sb, Sc) from the converter.
    [15" id="c-fr-0015]
    15. System according to claim 14, the harmonic current compensation control voltages (V * nabc) being obtained at least by calculation of the active and reactive components (idn, iqn) of the output currents of the alternator (ipa, iPb). , ipc), preferably in a Park reference (Rnciq) of frequency n times greater than the frequency of the three-phase reference (Rabc), n being an integer greater than 2.
    [16" id="c-fr-0016]
    16. System according to claim 14, the harmonic current compensation control voltages (V * natc) being obtained at least by calculation of the active and reactive components of the AC bus currents of the converter (ia, ib, ic), preferably in a Park reference frequency n times greater than the frequency of the three-phase reference (Rabc), n being an integer greater than 2.
    [17" id="c-fr-0017]
    17. System according to any one of claims 8 to 16, the value of the active reference current id * being removed from a control current of the supercapacitor (IdvDc) before being used for calculating the reference voltages (Pq , Pd) in order to avoid exceeding predetermined safety voltage thresholds, this control current (Idvoc) being a function of at least the voltage at the terminals of the storage element and the direct nominal current (Idn) of the alternator.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP1788697A1|2007-05-23|Power-factor correction device for variable speed drive
    EP3320593B1|2020-10-21|Power-generating system with improved treatment of charging impacts, load shedding and harmonics
    FR2946810A1|2010-12-17|REVERSIBLE FAST CHARGE DEVICE FOR ELECTRIC VEHICLE
    FR2990078A1|2013-11-01|METHOD FOR CONTROLLING CHARGE OF A BATTERY
    EP2831977A2|2015-02-04|Method and system for supplying electrical power to a hybrid motor vehicle having dual electrical power storage
    WO2009144266A1|2009-12-03|High power rectifier circuit particularly for aluminium electrolysis
    EP2033295B1|2010-03-03|Device for feeding a charge including integrated energy storage
    FR2985104A1|2013-06-28|METHOD OF CHARGING WITH AN ELECTRICAL NETWORK DELIVERING A CONTINUOUS CURRENT OF AN ELECTRIC ENERGY STORAGE UNIT
    FR2932329A1|2009-12-11|DEVICE FOR RECOVERING ENERGY IN A SPEED DRIVE
    EP3183795B1|2018-12-05|Battery charger for high-integration electric or hybrid motor vehicle
    EP2822800B1|2020-01-01|Method for discharging at least one capacitor of an electric circuit
    WO2016139277A1|2016-09-09|Electromechanical assembly comprising an alternator
    Jain et al.2018|Adaptive SRF-PLL based voltage and frequency control of hybrid standalone WECS with PMSG-BESS
    EP2537702B1|2019-11-27|Configuration of a stator of a rotating electric machine
    EP3520210B1|2020-08-05|Method for controlling a three-phase rectifier for a charging device on board an electrical or hybrid vehicle
    EP2131483B1|2011-09-07|Speed regulator with super capacitor
    EP2297840A1|2011-03-23|Arc welding set with an optimized quasi-resonant soft-switching inverter
    WO2015001279A2|2015-01-08|Method of controlling a dc/ac voltage converter
    EP3539204A1|2019-09-18|Method for controlling a three-phase rectifier for a charging device on board an electric or hybrid vehicle
    FR2870401A1|2005-11-18|Electric generator for generating electric energy, has standard asynchronous machine that operates as generator and has rotor which is short-circuited, and electronic device that provides reactive power to generator and to its load
    Nashed et al.2016|Dynamic Performance of Stand-Alone Wind-Driven Single Machine-Brushless Double Fed Generator
    EP2850442A1|2015-03-25|Method for determining at least one state of an electric circuit
    同族专利:
    公开号 | 公开日
    FR3038796B1|2017-08-11|
    CN107925245A|2018-04-17|
    US20180205229A1|2018-07-19|
    EP3320593B1|2020-10-21|
    DK3320593T3|2021-01-11|
    CN107925245B|2021-02-19|
    EP3320593A1|2018-05-16|
    US10431984B2|2019-10-01|
    WO2017005856A1|2017-01-12|
    ES2839881T3|2021-07-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20130128636A1|2010-07-30|2013-05-23|Alstom Technology Ltd|HVDC Converter Comprising Fullbridge Cells For Handling A DC Side Short Circuit|
    WO2014147294A1|2013-03-19|2014-09-25|Merus Power Dynamics Oy|Method and apparatus for compensating non-active currents in electrical power networks|
    US5668707A|1994-10-04|1997-09-16|Delco Electronics Corp.|Multi-phase power converter with harmonic neutralization|
    EP1852964B1|2005-02-25|2012-01-18|Mitsubishi Denki Kabushiki Kaisha|Power conversion apparatus|
    CN1845430A|2006-04-12|2006-10-11|华北电力大学|Load current quality regulator|
    US20090195074A1|2008-01-31|2009-08-06|Buiel Edward R|Power supply and storage device for improving drilling rig operating efficiency|
    US8144491B2|2008-12-31|2012-03-27|Drs Power & Control Technologies, Inc.|Cascaded flying capacitor modular high voltage inverters|
    WO2014011706A1|2012-07-09|2014-01-16|Inertech Ip Llc|Transformerless multi-level medium-voltage uninterruptible power supply systems and methods|
    CN103117553A|2012-09-17|2013-05-22|湖南工业大学|Novel power quality regulator on background of micro-grid|
    FI20135275A|2013-03-22|2014-09-23|Meontrust Oy|Transaction authorization method and system|
    CN103872685B|2014-03-11|2016-06-01|韩伟|The staggered compensation system of a kind of harmonic current frequency division and harmonic current thereof divide frequency given algorithm|EP3605822B1|2017-03-22|2022-03-02|Toshiba Mitsubishi-Electric Industrial Systems Corporation|Power conversion device|
    US10589635B1|2019-03-01|2020-03-17|The Boeing Company|Active voltage control for hybrid electric aircraft|
    US11231014B2|2020-06-22|2022-01-25|General Electric Company|System and method for reducing voltage distortion from an inverter-based resource|
    法律状态:
    2016-06-30| PLFP| Fee payment|Year of fee payment: 2 |
    2017-01-13| PLSC| Search report ready|Effective date: 20170113 |
    2017-06-30| PLFP| Fee payment|Year of fee payment: 3 |
    2018-06-29| PLFP| Fee payment|Year of fee payment: 4 |
    2020-06-26| PLFP| Fee payment|Year of fee payment: 6 |
    2021-06-25| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1556497A|FR3038796B1|2015-07-09|2015-07-09|ENERGY GENERATING SYSTEM WITH IMPROVED TREATMENT OF LOAD IMPACTS, DELAYS AND HARMONICS|FR1556497A| FR3038796B1|2015-07-09|2015-07-09|ENERGY GENERATING SYSTEM WITH IMPROVED TREATMENT OF LOAD IMPACTS, DELAYS AND HARMONICS|
    EP16741560.3A| EP3320593B1|2015-07-09|2016-07-07|Power-generating system with improved treatment of charging impacts, load shedding and harmonics|
    US15/742,762| US10431984B2|2015-07-09|2016-07-07|Power-generating system with improved treatment of charging impacts, load-shedding and harmonics|
    ES16741560T| ES2839881T3|2015-07-09|2016-07-07|Power generation system with improved treatment of load shocks, load shedding and harmonics|
    PCT/EP2016/066133| WO2017005856A1|2015-07-09|2016-07-07|Power-generating system with improved treatment of charging impacts, load shedding and harmonics|
    CN201680047191.4A| CN107925245B|2015-07-09|2016-07-07|Power generation system for improving charging impact, load shedding and harmonic waves|
    DK16741560.3T| DK3320593T3|2015-07-09|2016-07-07|ENERGY PRODUCTION SYSTEM WITH IMPROVED TREATMENT OF LOAD IMPULSES, LOAD REDUCTIONS AND HARMONIC COMPONENTS|
    [返回顶部]