• 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:
    The present invention relates to a power module for a system for converting a continuous electrical power into three-phase electrical power. The power module according to the invention comprises two inputs (E1, E2), an output (S), two switches (1), two diodes (D), and two capacitors (Cs, Cov). The invention also relates to a conversion system comprising such a power module.
    公开号:FR3044180A1
    申请号:FR1561212
    申请日:2015-11-23
    公开日:2017-05-26
    发明作者:Wissam Dib；Denny Chiono；Davide Bettoni
    申请人:IFP Energies Nouvelles IFPEN；Mavel SRL；
    IPC主号:
    专利说明:

    The present invention relates to the field of converters for the conversion of electrical energy, in particular for high speed and / or variable speed electrical machines.
    A static converter is a system for converting an electrical signal into another electrical signal having different characteristics. For example, a converter can be used to convert an alternating voltage into another AC voltage with a different frequency and / or amplitude, it is called an AC / AC converter. According to another example, a converter can be used to convert an alternating voltage into a DC voltage, which is called an AC / DC converter or AC / DC converter. For DC / AC reverse conversion, it is called DC / AC converter. According to a last example, a converter can convert a DC voltage into a DC voltage of different voltage, it is called DC / DC converter. The converters may be reversible or non-reversible. Generally, the conversion is implemented by means of switches (switches) controlled.
    To control electrical machines, including permanent magnet electric machines, from electrical energy storage system (s) (for example a battery), it is necessary to convert the continuous electrical energy into three-phase AC energy. This conversion can be performed by means of a DC / AC converter. Such a converter must provide three sinusoidal voltages shifted by electrical 120 ° relative to each other, the amplitude of which depends directly on the requested torque (but also on the rotational speed), the frequency of which depends solely on the rotation speed of the electric machine connected to the converter.
    Conventionally, a DC / AC converter comprises three switching arms. Each switching arm has two controlled switches and two diodes placed in parallel with the controlled switches. Depending on the charging current required, an arm can be composed of several 'sub-arms' in parallel. The phases of the electric machine are connected to the midpoint of each arm. Each arm is controlled separately by controlling the opening and closing of the switches on switching periods, so as to form a three-phase signal.
    Figure 1 illustrates such a conventional DC / AC converter. The DC voltage of the electrical energy storage means is indicated Udc. The three-phase motor M is schematically represented by three coils fed by currents Ia, Ib and Ic. The converter comprises three switching arms A, B, C, each switching arm A, B, C is connected to a phase of the electrical machine M. Each switching arm comprises two switches 1 and two diodes 2. The switching arms A, B, C are arranged in parallel between the two continuous input phases of the voltage converter Udc. The output phases of the switching arms A, B, C are connected to the midpoint (between the two switches) of the switching arms.
    FIG. 2 shows the control signal COM of the switches with a constant duty cycle of 50%, the voltage Udc and the current at the terminals of a switch, for a conventional DC / AC converter (as described above with reference in Figure 1). For the control signal COM, the lower part of the slot corresponds to the open switch, and the upper part of the slot corresponds to the closed switch. We speak for this case of so-called hard switching or 'all or nothing' (of English "hard switching"). It should be noted that for this design of the converter, the voltage Udc and the current lo are exceeded. The current lo corresponds to the permanent value of the, and corresponds to the current sent to the electric machine.
    Thus, the main drawbacks of this conventional design of the converter are the following: • losses by switching: this design has significant switching losses, which tends to make its use incompatible with high switching frequencies and therefore for electrical machines used at very high speeds, • current / voltage overshoot: as shown in FIG. 2, this strategy has overshoot and current during the instantaneous switching of the switch. Thus this type of control requires a margin taken on the voltage and current of the various components during the design of the converter (also called inverter). This implies an over-dimensioning of the components used, (for example: for a 300 Volt DC bus voltage, an IGBT switch with a nominal voltage of 600 Volts is used), and • significant electromagnetic emissions (EMC).
    Starting from the disadvantages of the strategy "Hard switching" (losses, incompatibility with high speed motors), a design called soft switching (or "soft switching") has been developed. Thus, to limit current and voltage surges on the switches, a coil and a capacitor are added to the previous circuit. The coil modulates the variation of the current di / dt ("Turn-On"), and the capacitor modulates the variation of the voltage dv / dt ("Turn-Off"). In addition, and in order to ensure the operation of the circuit, and therefore a zero energy balance, a resistor is added in the circuit between the voltage of the energy source used and the capacitive circuit. This resistance makes it possible to ensure the operation of this circuit and to reduce the voltage at the terminal of the capacitive circuit. Such a DC / AC converter design is described in particular in the patent application WO 11016854.
    Figure 3 shows a simplified diagram of a switching arm (with two switches 1) with capacitance Cs, coil Ls, resistor R and capacitance Cov for smooth switching. This circuit is known by the English name "Undeland Snubber". The voltage Udc corresponds to the voltage at the terminals of the means for storing the continuous electrical energy. The coil Ls is placed between a continuous input phase Udc and the switching arm A. A branch starts from the junction between the coil Ls and the switching arm A, this branch comprises two diodes D, and arrives at a junction between the resistance R and the capacitor Cov. The other end of the resistor R is connected to the continuous input phase of the converter. The other end of the capacitor Cs is connected to the alternating output phase of the switching arm A. The other end of the capacitor Cov is connected to ground. The capacitor Cs makes it possible to modulate the evolution of the voltage across the switch. This capacity stores a portion of the energy due to the soft switching of the switches. The other part of this energy is stored in a capacity of higher Cov value. Then, the energy stored in the capacity is returned to the used storage system (battery) through the resistor. The coil Ls modulates the evolution of the current across the switch. In fact, the energy created by the coil Ls is not fully stored in the capacitor Cs, hence the need for a second capacitance Cov of a value higher than Cs. The resistor ensures the operation of the system and allows to reduce the voltage Vrec.
    FIG. 4 shows, in a manner similar to FIG. 2, the switching signal COM, revolution of the voltage Udc and of the current Ie of the switch during a so-called "soft" switching. For the control signal COM, the lower part of the slot corresponds to the open switch, and the upper part of the slot corresponds to the closed switch. It is noted in this figure that the voltage overruns Udc and current are decreased compared to the so-called "hard" switching.
    The advantages of soft switching are: • less switching losses, this converter design is compatible with high switching frequencies, so this design can be used to drive high speed electrical machines, • little voltage overshoot and current on the switch, so no need to oversize the components, and • revolution of the voltage and current across the switches during the transition is modulated by the choice of Ls and Cs respectively.
    This converter design requires a particular arrangement of the various electrical components, which makes their assembly long and complex.
    To overcome these disadvantages, the present invention relates to a power module for a system for converting a continuous electrical power into three-phase electrical power. The power module according to the invention comprises two inputs, an output, two switches, two diodes, and two capacitors. Thus, the power module for a conversion system can be standardized, allowing simple and fast assembly of the conversion system. In addition, the power module according to the invention is adapted to a smooth switching, by the presence of capacitors, which allows to minimize switching losses, to limit voltage and current overshoot.
    The device according to the invention The invention relates to a power module for a system for converting a continuous electrical power into three-phase electrical power, said power module comprising two inputs able to be connected to the continuous inputs of said conversion system, two switches placed in series between said inputs, and a first output disposed between said two switches, said first output being adapted to be connected to an AC output phase of said conversion system. Said power module further comprises two diodes and two capacitors.
    According to one embodiment of the invention, said two diodes are connected in series, and are connected to a first input of said module and to a second output of said module, said second output being able to be connected to an energy recovery module of said conversion system.
    Advantageously, a first voltage modulation capacitor is connected between a point between said diodes and said first output.
    According to one implementation, a second capacitor is connected between said second output of said module and a second input of said module.
    Preferably, said switches are of the MOSFET or IGBT type.
    According to one characteristic of the invention, said voltage modulation capacitor has a capacitance of between 4 and 15 nF.
    According to one possible design, said second capacitor has a capacitance of between 500 and 5000 nF.
    According to one embodiment, said module forms a block that can be mounted on a card of a conversion system.
    Advantageously, said block comprises fixing means.
    Preferably, said fastening means comprise at least one notch for the passage of a screw.
    In addition, the invention relates to a system for converting a continuous electrical power into three-phase electrical power comprising three switching arms. Each switching arm comprises a power module according to one of the preceding characteristics.
    Advantageously, each switching arm comprises two or three power modules according to one of the preceding characteristics.
    According to one characteristic, said conversion system comprises an energy recovery module and at least one current modulation coil.
    In addition, the invention relates to an engine system comprising at least one electrical energy storage means and a three-phase electrical machine. The motor system comprises a conversion system according to one of the preceding characteristics, for converting the continuous electrical energy of said electrical energy storage means into three-phase AC electrical energy for said electric machine.
    BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the system according to the invention will become apparent on reading the description hereafter of nonlimiting examples of embodiments, with reference to the appended figures and described below.
    FIG. 1, already described, illustrates a conventional DC / AC converter, with hard switching, according to the prior art.
    FIG. 2, already described, illustrates the switching signal, the voltage and the intensity in a phase for a DC / AC converter according to the design of FIG.
    Figure 3, already described, illustrates a DC / AC converter according to the prior art, with soft switching.
    FIG. 4, already described, illustrates the switching signal, the voltage and the intensity in a phase for a DC / AC converter according to the design of FIG.
    FIG. 5a illustrates an exemplary embodiment of the electric energy recovery module for a converter according to one embodiment of the invention.
    FIG. 5b illustrates an equivalent model resistive to the electric energy recovery module of FIG. 5a.
    FIG. 6 illustrates an electrical diagram of a power module according to one embodiment of the invention.
    Figure 7 illustrates the design of a power module according to an embodiment of the invention.
    Detailed description of the invention
    The present invention relates to a power module for a system for converting a continuous electrical power into three-phase electrical power. The power module serves as the switching arm of the conversion system. The power module comprises: two inputs capable of being connected to the continuous inputs of the conversion system, the first input can be connected to a positive voltage, and the second input can be connected to ground; two switches connected in series between the two inputs, the switches can be controlled, so as to provide an alternating output current, - an output capable of being connected to an AC output phase of the conversion system, the output is connected at a point between the two switches, two diodes, allowing the passage of the current in one direction, and two capacitors, a first capacitor, said voltage modulation capacitor (which allows the modulation of the voltage variation for the soft switching) and a second capacitor (which enables store the created energy that is not stored in the first capacitor when modulating the voltage).
    Such a power module is compatible with a wide range of voltage operation.
    According to one embodiment of the invention, the power module contains only these electronic components: two switches, two diodes, and two capacitors. For this embodiment, only the second capacitor can be formed by a parallel association of several capacitors (for example 2 or 3 capacitors).
    In addition, the power module can be adapted to be connected to an electric energy recovery module. In this case, the power module may comprise a second output capable of being connected to the electric energy recovery module. This second output can be connected to a diode.
    According to one embodiment of the invention, the diodes of the power module are connected in series. The diodes can be connected to a first input of the power module. For example, the input connected to the positive voltage. In the case where the power module comprises a second output for an electric energy recovery module, the diodes are connected to this second output.
    In addition, the voltage modulation capacitor may be mounted between a point between the two diodes and the first output.
    In addition, the second capacitor can be mounted between the second output and the second input of the power module, that is to say on the input of the power module, on which the diodes are not mounted, for example this second entry can correspond to the mass.
    According to a characteristic of the invention, the switches may be MOSFET switches (acronym for "Metal Oxide Semiconductor Field Effect Transistor" which is translated by a field effect transistor with a metal-oxide-semiconductor structure) and / or IGBT (Insulated Gate Bipolar Transistor), depending on the input voltage of the DC bus. For high voltage, IGBT switches (switches) can be used. For low voltage, MOSFET switches can be used.
    Preferably, the switches can be controlled by a pulse width modulation method (PWM or PWM for "Pulse Width Modulation"). The general principle of this modulation method is that by applying a succession of discrete states for well-chosen periods of time, any intermediate value can be averaged over a certain period of time.
    For modulation of the voltage variations, the first voltage modulation capacitor may have a value of between 1 and 15 nF, preferably between 2 and 10 nF.
    The second capacitor preferably has a higher capacitance than the first capacitor. The second capacitor may have a value between 500 and 5000 nF, preferably between 600 and 2500 nF. According to an alternative embodiment of the invention, the second capacitor may be formed of several associated capacitors in parallel and / or in series. Advantageously, to limit the size, the second capacitor can be formed of three identical capacities (of the same capacity) associated in parallel.
    Advantageously, the power module is in the form of a block, so as to facilitate its assembly, compactness and standardization. The block may comprise a support, a plate comprising a printed circuit, and the electronic components (switches, diodes, capacitors) of the power module. The plate may be in the form of a printed circuit. The electronic components are mounted on the plate. The plate is mounted on the support. The block may be arranged to be mounted on a card of a conversion system. The block may have a substantially parallelepiped shape.
    According to an alternative embodiment of the invention, the block may comprise several means of attachment to the card of a conversion system. The fixing means may in particular be at least one notch provided for the passage of a screw. The notch may be provided in the support and / or the block plate. The notch may be of substantially oblong shape. The fixing means may also comprise at least one slot or a projection, so as to allow snap-fastening ("clipping") or to allow positioning of the block.
    The block may also comprise fixing means for fixing a plurality of modules together, so as to be able to associate several modules together, particularly for the case where the currents are high, which makes it possible to produce the switching arm of a module. conversion system without using components with high specific characteristics and being expensive.
    The power module according to the invention does not include electrical energy recovery means or coil for modulating the current variation, allowing smooth switching.
    FIG. 6 illustrates, in a nonlimiting manner, an electrical diagram of a power module according to one embodiment of the invention. The power module has two inputs E1 and E2 intended to be connected to the continuous inputs of the conversion system. The input E1 can correspond to the positive voltage input, and the input E2 can correspond to the ground. Between the two inputs E1 and E2, two controlled switches 1 are connected in series. Between the two switches 1, the output S is connected, this output S is intended to be connected to an output phase of the conversion system. Two diodes D are connected in series between the input E1 and the second output Vrec, which is able to be connected to an electric energy recovery module. A first capacitor Cs, intended for voltage modulation, is connected at a point between the two diodes D and the first output S. A second capacitor Cov is connected between the second output Vrec and the second input E2.
    FIG. 7 illustrates, schematically and in a nonlimiting manner, a power module according to one embodiment of the invention. The module has substantially the shape of a block 7. The block 7 comprises a plate 8 in the form of a printed circuit on which are mounted different electronic components. The plate 8 has substantially the shape of a rectangle. The plate 8 is mounted on a support 9. The support 9 has substantially the shape of a rectangular parallelepiped. The plate 8 and the support 9 comprise several fixing means: a notch 10 provided for the passage of a screw, and two slots 11 and 12 for snap-fastening and / or for positioning the block. Electronic components (shown schematically) are mounted on the plate 8 on the side opposite to the support 9. Among the electronic components, the second capacitor Cov is formed of three capacitors 13 associated in parallel.
    In addition, the present invention relates to a conversion system (converter) DC / AC for converting a continuous electrical energy into AC three-phase electrical energy. Advantageously, the conversion system according to the invention can be bidirectional (reversible). Thus, by means of the conversion system according to the invention, a three-phase AC energy can be converted into continuous electrical energy.
    Conventionally, the conversion system according to the invention comprises three switching arms, a continuous input phase, and three alternative output phases. Each switching arm comprises a power module according to the invention. Thus, the conversion system comprises at least three power modules. According to one embodiment of the invention, each switching arm may comprise a plurality, preferably two, three or four associated power modules in parallel. This combination of power modules makes it possible to increase the characteristics of the electric current, in particular the intensity of the electric current. For example, if you want a DC / AC converter with a current of 300 A Rms (or rms value), you can associate in parallel three power modules allowing a current of 100 A Rms. The use of separate and standardized power modules to form switching arms facilitates assembly and converter design.
    According to the invention, the conversion system further comprises a voltage and intensity modulation circuit. The voltage and current modulation circuit allows for soft switching ("soft switching"), which makes it possible to limit switching losses, to limit voltage and current overshoots on the switches. The modulation circuit comprises a coil, which modulates the current variation, and a first and a second capacitor per power module, for modulating the voltage variation. The capacitors of the modulation circuit are included in the power modules. The first capacitor allows modulation of the voltage variation, and the second capacitor makes it possible to store the energy created by the coil and not stored by the first capacitor.
    According to one embodiment of the invention, the conversion system further comprises a recovery module of electrical energy. Thus, the conversion system has no resistance, in which energy is dissipated for the prior art. On the contrary, the electric energy recovery module, which replaces the resistor, makes it possible to recover the energy available or created during the so-called soft switching, by recovering the energy available during soft switching, and by sending it to means for storing electrical energy (for example a battery) connected to the continuous phases of the conversion system. Thus, the electrical losses are greatly reduced. The electric energy recovery module is connected to the switching arms and the modulation circuit.
    The electric energy recovery module may comprise at least one inductor, at least one diode, at least one capacitor and at least one switch. The switch is controlled to allow the recovery of energy and its transfer to the electrical energy storage means.
    According to an alternative embodiment of the invention, the electrical energy recovery module may comprise three branches connected at a junction point with: a first branch comprising a switch, a second branch comprising a diode, and a third branch. having an inductor.
    Thus, the circuit board of the conversion system can be modified specifically to use the design of a soft switching converter compatible with high switching frequencies, while minimizing the losses due to the added passive circuit to ensure operation. of the modulation circuit.
    FIG. 5a shows, schematically and without limitation, such an electric energy recovery module. The electric energy recovery module comprises three branches connected at a junction point P, with: a first branch with a switch 6, a second branch comprising a diode 4 (in which flows a current iL as a function of the voltage at its terminals), and - a third branch comprising an inductance Lrec.
    In FIG. 5a, the capacitor 5 represents the capacitance of the electrical energy storage means (battery) and is not a component of the recuperator module. The capacitor 5 is placed between the inductance Lrec and the ground.
    In addition, the capacitor 3 represents the created capacitance, and it is a component of the recuperator module. The capacitor 3 is placed between the switch and the ground.
    Diode 4 is placed between the point of junction of the three branches and the mass.
    By controlling the switch (its duty cycle), it is possible to control the current iL flowing between Vrec and Udc (the current sent to the battery).
    Thus, considering the assembly formed by the recuperator module and the capacitor of the electrical energy storage means, the assembly is formed of three parallel branches, placed between the point P and the mass, with: a first branch comprising the switch 6 and the capacitor 3, - a second branch comprising a diode 4, and - a third branch comprising the inductance Lrec and the capacity 5 of the storage means of the electrical energy.
    When the switch is closed, the diode is in a locked mode and the current iL that flows in the coil Lrec (shown in Figure 5a) is equal to
    When the switch is open, the diode is a passing mode is the current iL that flows in the coil Lrec (shown in Figure 5a) is equal to
    Thus, by controlling the opening and closing time of the switch, it is possible to control the average value of the current i L, and to have an equivalent operation of a resistive circuit.
    Figure 5b shows, without limitation, an equivalent electrical diagram of the electric energy recovery module shown in Figure 5a. Thus, the electric energy recovery module is equivalent to an equivalent resistor Req, in which a current iL flows, but without dissipation of the electrical energy.
    For this variant embodiment, the average current in this circuit can be expressed in the following form:
    with: - T the switching period of the switch, - Vrec the recovery voltage, - Udc the voltage of the continuous input phase, - Lrec the inductance of the recuperator module, - Req the equivalent resistance - Fsw represents the switching frequency of the switches.
    Preferably, such a power recovery module is mounted in the conversion system equipped with the modulation circuit, such that the electric energy recovery module is disposed between a continuous input phase of the conversion system and the junction between the switching arm and the capacitor of the circuit of
    modulation. For the embodiment of FIG. 5a, the electric energy recovery module can be connected in such a way that: the point of the recovery module connected to said continuous input phase (of voltage Udc) of the conversion system corresponds to point of the third branch of the recuperator module between the inductance Lrec and the second capacitor 5 (this capacitor is the capacity of the battery), and - the point of the recuperator module connected to the junction between the switching arm (voltage Vrec) and the capacitor of the modulation circuit corresponds to the point of the first branch of the recuperator module between the switch 6 and the first capacitor 3.
    The conversion system according to the invention makes it possible to drive electrical machines, for all types of application, in particular for electric machines running at very high speeds with a high efficiency of the inverter (converter).
    The converter according to the invention may be provided for on-board use, in particular within a vehicle, in particular terrestrial, aeronautical or naval.
    The conversion system according to the invention can also be used in non-electric power generation systems, such as turbines, micro-turbines or wind turbines.
    In addition, the present invention relates to an engine system comprising at least one electrical energy storage means, for example a battery, and a three-phase electrical machine, for example an electric machine with permanent magnets. The motor system comprises a conversion system according to one of the embodiments described above, for converting the continuous electrical energy of the electrical energy storage means into three-phase AC electrical energy for the electric machine and possibly vice versa. Thus, thanks to the conversion system, the electric machine can be driven, while limiting the electrical losses. In addition, if the conversion system is bidirectional (reversible), then it is also possible to store (for example in a battery) electrical energy generated by the rotation of the electric machine.
    Comparative example:
    A comparative example was made, in order to compare the losses of the conversion system according to the invention with the losses of the DC / AC conversion systems according to the prior art. The system according to the invention tested corresponds to the embodiment of FIG. 5a (electric energy recuperator), each switching arm being formed by a power module according to the example of FIG. 6 (power module). The DC / AC conversion systems of the prior art correspond respectively to the hard switching and the soft switching, respectively according to the embodiments of FIGS. 1 and 3.
    For this example, the values used for an inverter with a nominal power of 50 kW are the following: - Ls ~ = 300 microH, - Cs ~ = 6.8 nanoF, - Cov ~ = 1410 nanoF (formed by three capacities of 470 nF), Vrec ~ = 1.5 Vbus,
    Lrec = 56 microFI, - Creates = 20 nanoF, - switch type: IGBT. _Table 1 - Comparative Example__
    It should be noted that the conversion system makes it possible to reduce the total losses by approximately 42.5% compared with the conversion systems according to the prior art. This reduction is due to a reduction in switching losses due to soft switching (50% reduction in switching losses compared to hard switching), and a reduction in dissipation losses in the added circuit (85% reduction). losses by dissipation compared to soft switching).
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    1) Power module for a system for converting a continuous electrical power into three-phase electrical power, said power module comprising two inputs (E1, E2) able to be connected to the continuous inputs of said conversion system, two switches (1) placed in series between said inputs (E1, E2), and a first output (S) disposed between said two switches (1), said first output (S) being adapted to be connected to an AC output phase of said conversion system, characterized in that said power module further comprises two diodes (D) and two capacitors (Cs, Cov).
    [0002]
    2) Module according to claim 1, wherein said two diodes (D) are connected in series, and are connected to a first input (E1) of said module and to a second output (Vrec) of said module, said second output (Vrec) being able to be connected to an energy recovery module of said conversion system.
    [0003]
    3) Module according to claim 2, wherein a first voltage modulation capacitor (Cs) is connected between a point between said diodes (D) and said first output (S).
    [0004]
    4) Module according to one of claims 2 or 3, wherein a second capacitor (Cov) is connected between said second output (Vrec) of said module and a second input (E2) of said module.
    [0005]
    5) Module according to one of the preceding claims, wherein said switches (1) are of the MOSFET or IGBT type.
    [0006]
    6) Module according to one of the preceding claims, wherein said voltage modulation capacitor (Cs) has a capacitance of between 4 and 15 nF.
    [0007]
    7) Module according to one of the preceding claims, wherein said second capacitor (Cov) has a capacitance of between 500 and 5000 nF.
    [0008]
    8) Module according to one of the preceding claims, wherein said module forms a block (7) adapted to be mounted on a card of a conversion system.
    [0009]
    9) Module according to claim 8, wherein said block (7) comprises fixing means (10, 11, 12).
    [0010]
    10) Module according to claim 9, wherein said fastening means comprise at least one notch (10) for the passage of a screw.
    [0011]
    11) System for converting a continuous electrical power into three-phase electrical power comprising three switching arms (A, B, C), characterized in that each switching arm (A, B, C) comprises a power module according to the invention. one of the preceding claims.
    [0012]
    12) System according to claim 11, wherein each switching arm (A, B, C) comprises two or three power modules according to one of the preceding claims.
    [0013]
    13) System according to one of claims 11 or 12, wherein said conversion system comprises an energy recovery module and at least one current modulation coil (Ls).
    [0014]
    14) Motor system comprising at least one electrical energy storage means and a three-phase electrical machine (M), characterized in that the motor system comprises a conversion system according to one of claims 11 to 13, for converting the continuous electrical energy of said means for storing electrical energy into three-phase AC electrical energy for said electric machine.
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    同族专利:
    公开号 | 公开日
    WO2017089061A1|2017-06-01|
    EP3381113A1|2018-10-03|
    CN106787901A|2017-05-31|
    CN206506455U|2017-09-19|
    EP3381113B1|2020-10-07|
    FR3044180B1|2018-12-07|
    US20180375426A1|2018-12-27|
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    WO2011016854A1|2009-08-05|2011-02-10|Advanced Power Electronics Corporation|Soft switching using a lossless snubber circuit in a power converter|
    FR3044180B1|2015-11-23|2018-12-07|IFP Energies Nouvelles|POWER MODULE FOR CONVERTING SYSTEM OF CONTINUOUS ELECTRIC POWER IN THREE-PHASE ELECTRIC POWER|FR3043284A1|2015-10-29|2017-05-05|Ifp Energies Now|SYSTEM FOR CONVERTING A CONTINUOUS ELECTRIC POWER INTO ALTERNATIVE ELECTRIC POWER WITH ENERGY RECOVERY MODULE|
    FR3044180B1|2015-11-23|2018-12-07|IFP Energies Nouvelles|POWER MODULE FOR CONVERTING SYSTEM OF CONTINUOUS ELECTRIC POWER IN THREE-PHASE ELECTRIC POWER|
    法律状态:
    2016-11-21| PLFP| Fee payment|Year of fee payment: 2 |
    2017-05-26| PLSC| Publication of the preliminary search report|Effective date: 20170526 |
    2017-11-28| PLFP| Fee payment|Year of fee payment: 3 |
    2019-11-28| PLFP| Fee payment|Year of fee payment: 5 |
    2020-11-25| PLFP| Fee payment|Year of fee payment: 6 |
    2021-11-24| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1561212|2015-11-23|
    FR1561212A|FR3044180B1|2015-11-23|2015-11-23|POWER MODULE FOR CONVERTING SYSTEM OF CONTINUOUS ELECTRIC POWER IN THREE-PHASE ELECTRIC POWER|FR1561212A| FR3044180B1|2015-11-23|2015-11-23|POWER MODULE FOR CONVERTING SYSTEM OF CONTINUOUS ELECTRIC POWER IN THREE-PHASE ELECTRIC POWER|
    EP16787443.7A| EP3381113B1|2015-11-23|2016-10-26|Regenerative undeland snubber module for inverter half-bridges|
    US15/777,790| US20180375426A1|2015-11-23|2016-10-26|Regenerative undeland snubber circuit for half-arm of an inverter|
    PCT/EP2016/075789| WO2017089061A1|2015-11-23|2016-10-26|Regenerative undeland snubber circuit for half-arm of an inverter|
    CN201621227592.1U| CN206506455U|2015-11-23|2016-11-15|System and its power model and electric system for DC electric power to be converted to three phase electric power|
    CN201611005941.XA| CN106787901A|2015-11-23|2016-11-15|System and its power model and electrode system for DC electric power to be converted to three phase electric power|
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