• 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:
    "maltiphasic electrical machine control method and device" a polyphasic electrical machine (30) is controlled by means of at least two inverters in parallel (101, 102), each inverter has branches (101a, 101b, 102c, 102a, 102b, 102c) in number equal to the machine phases and are controlled by pulse width modulation (pwm). in response to the detection of a faulty inverter branch (102a), the latter is isolated and the phase in question is supplied by another, or each other corresponding inverter branch (101a). the control by pwm is modified to resume successively and without switching the power switches of this or each other branch (101a), when, in absolute value, the current intensity in question (ia) is greater than or equal to a threshold between 80 % and 120% of n-1 / n imax, where n is the number of inverters and imax is the maximum intensity of the phase current. thus, it is possible to conserve an appreciably sinusoidal voltage generation over each phase, avoiding over-dimensioning of the power switches so that, in case of defect, they can alternate currents of higher amplitude than in normal operation.
    公开号:BR112012017854B1
    申请号:R112012017854-7
    申请日:2011-01-06
    公开日:2020-09-01
    发明作者:Eric DE WERGIFOSSE
    申请人:Hispano-Suiza；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION
    [0001] The invention relates to a multiphase electrical machine control system through several numbers of parallel inverters.
    [0002] The invention applies more particularly in cases where such a control must present a high degree of confidence, as for example, in the aeronautical field.
    [0003] A known device for controlling a three-phase electrical machine is shown in Figure 1. This device comprises two three-phase inverters that provide alternating currents la, lb, lc for phase windings of the electrical machine 4, each inverter providing roughly half phase currents. Each inverter comprises switches 5 connected at one point, for example, by power transistors. Each inverter consists of three branches 6 each comprising two power switches 5 mounted in series between two opposite terminals + V and -V of direct electric current and on each side of a point 7 connected to a respective phase of the electrical machine. A three-pole isolation switch 8 is mounted between each inverter and the electrical machine. A circuit 9 controls the switching of alternating power switches 5 through attack circuits (drivers) to modulate the continuous electrical source in order to produce alternating currents la, lb, lc. It normally uses pulse width modulation (PWM for "Pulse Width Modulation").
    [0004] In case of failure or defect of a branch (arm) of the inverter (UPS), the defective inverter (UPS) is isolated by opening the associated isolation switch and phase currents and must then be supplied entirely by another inverter. Each arm of this other inverter is then traversed by the phase current integrality and not more than half of it. The power switches must then be provided to be able to alternate in a current having an amplitude twice that of the current they conduct normally (without failures).
    [0005] Another embodiment of a known device for controlling a three-phase electrical machine is shown in Figure 2. This other alternative embodiment differs from that in Figure 1, by the presence of a supplementary inverter with its associated isolation switch. In normal operation, two inverters are working supplying each phase phase halves, with the third inverter isolated. In the event of failure of a branch of the inverter, the defective inverter is isolated by opening the associated isolation switch and the additional inverter is put into service by closing the associated isolation switch.
    [0006] In both cases above, a significant oversizing is required both in terms of switching capacity of the power switches and in the number of inverters. OBJECTIVE AND SUMMARY OF THE INVENTION
    [0007] The purpose of the invention is to allow a multi-phase electrical machine to be controlled by several inverters in parallel, with a high degree of reliability, without requiring such an oversizing.
    [0008] According to one aspect of the invention, this objective is achieved thanks to a method of controlling a polyphasic electrical machine, by means of at least two polyphasic inverters in parallel, each inverter comprising branches in number equal to that of one of the phases of the electrical machine and each branch comprising two power switches connected in series between two opposite terminals of an electrical and continuous supply and on each side of a point connected to an electrical phase of the electrical machine, the method comprising the control of the inverters by modulation by pulse width and controlling the switching of the power switches, and the fault detection of the inverter branch in which the method, according to which, in response to the detection of a faulty inverter branch, the defective branch is isolated, the phase of the electrical machine corresponding to the defective branch is fed by each of the other arm of the corresponding inverter, and the pulse width modulation control is modified in particular, to make conductors successively and without switching the load power switches of another arm of the corresponding inverter when, in absolute value, the current intensity of the phase concerned is greater than or equal to a level between 80% and 120% of ((n-1) / n). (lmax) where n is the number of inverters and Imax is the maximum phase current intensity in absolute value, while maintaining a substantially sinusoidal voltage generator in each phase of the machine.
    [0009] Thus, in each branch of the inverter that incorporates the fraction of the phase current previously assumed by the defective branch, the switching of the power switches is not imposed when the current flowing through each arm has an amplitude greater than a threshold approximately equal (within 20%) to the maximum current value in the absence of a defect. It is well understood that, for the other inverter branches in service, a modification of the PWM (MLI) is also necessary in comparison to that applied before the detection of the defect, in order to continue to emit the balanced alternative phase currents.
    [0010] The method according to the invention is then notable for the fact that it can be compensated when a defect of an inverter branch occurs, without over-dimensioning the power switches, so that they can alternate under currents of greater amplitude than in normal operation and without the need for redundancy in terms of the number of inverters.
    [0011] Preferably, in the case of a control of a three-phase electrical machine by means of two inverters in parallel, during each period of the phase current corresponding to the defective branch of the inverter, the power switches of the other branch of the inverter corresponding are made conductors successively and without commutation for about 1/3 of the said period.
    [0012] According to an embodiment, the insulation of the defective inverter branch is done by opening an isolation switch of the branch connected between the inverter branch and the corresponding phase of the electrical machine.
    [0013] According to another embodiment, the isolation of the faulty inverter branch is done by inhibiting the attack circuitry of the defective branch's power switches.
    [0014] According to another aspect of the invention, a device for controlling the polyphasic electric machine is also intended to implement the process described above.
    [0015] This objective is achieved through a control device comprising:
    [0016] - at least two multi-phase inverters in parallel, each inverter comprising branches equal to the number of phase currents to be supplied and each branch comprising two power switches connected in series between two opposite terminals of a continuous electrical supply and in both the sides of a point connected to an output terminal of the respective phase current,
    [0017] - a control circuit of the pulse width modulation inverters commanding the switching of the power switches, and
    [0018] - a defect detection system of the inverter branches connected to the control circuit, in which the device, in response to the detection of a defective inverter branch, the inverter control circuit is oriented to:
    [0019] - isolate the faulty inverter branch so that the corresponding phase current is supplied by another corresponding inverter branch, and
    [0020] - modify the pulse width modulation, in particular, to switch on and conduct successively and without switching the power switches of either branch of the corresponding inverter when, in absolute value, the phase current in question is greater than or equal to a threshold between 80% and 120% of ((n-1) / n). (lmax) where n is the number of inverters and Imax is the maximum intensity n of the phase current in absolute value, maintaining a generation of substantially sinusoidal voltage over each phase of the machine.
    [0021] Advantageously, in the case of controlling a three-phase electrical machine by means of two inverters in parallel, the control circuit is arranged to, in response to the detection of a faulty inverter branch, change the pulse width modulation , in particular to successively transform conductors and without switching the power switches of another branch of the corresponding inverter during the respective durations equal to about 1/3 of the phase current period.
    [0022] According to an embodiment, the control device comprises isolation switches connected, respectively, to the branches of the inverters to be able to selectively isolate a branch of the inverter in relation to the corresponding phase current output.
    [0023] According to another embodiment, the power switches of the inverter branches are controlled through attack circuits and the control circuit of the inverters is arranged to, in response to a fault detection of the branch, inhibit the operation of the circuits the power switches of the defective branch.
    [0024] In accordance with yet another aspect, the invention aims to provide an aeronautical propulsion engine starting system comprising a polyphasic electric machine controlled in electric motor mode to drive a propulsion motor shaft and a device as defined above is to control the multiphase electric machine. BRIEF DESCRIPTION OF THE DRAWINGS
    [0025] Other characteristics and advantages of the invention will emerge from reading the description made below, as an indication, but not a limitation, and with reference to the attached drawings, on which;
    [0026] - Figures 1 and 2, already described, show very schematically two embodiments of a control device with a high reliability for a multiphase electric machine, according to the state of the art;
    [0027] - Figure 3 shows very schematically an embodiment of a control device for a multiphase electric machine according to the invention
    [0028] - Figure 4 is a more detailed view of a branch of the inverter device of Fig. 3;
    [0029] - Figure 5 shows the variation of the cyclical relationship of the pulses that control the switching of the power switches of the branches of the inverter device in Figure 3, in the absence of a defect;
    [0030] - Figure 6 shows the control device of Figure 3 after detecting a defective inverter branch;
    [0031] - Figure 7 shows the variation of the cyclic relation of the pulses that control the switching of the branch switches of the active inverter device in the device of Figure 3 after the detection of a defective inverter branch and in its isolation;
    [0032] - Figure 8 shows the successive steps of a fault detection sequence of the inverter branch and the treatment of the fault, and
    [0033] - Figure 9 shows schematically a control circuit of the inverters in a control device according to an embodiment of the invention, to control a synchronous electric machine with torque regulation. DETAILED DESCRIPTION OF WAYS OF CARRYING OUT THE INVENTION
    [0034] Figure 3 shows schematically an embodiment of a control device 10 according to the invention in the case of controlling a three-phase electrical machine 30 by means of two three-phase inverters 10i and 102 in parallel.
    [0035] As indicated above, the invention applies in particular in the aeronautical field. Electric machine 30 may be a unit of an aeronautical propulsion engine starting system, for example, turbine engine. The electric machine is then mechanically coupled to a propulsion motor shaft to drive it to the start and being controlled by an electric motor. Electric machine 30 can also be a machine used to start an auxiliary power unit (UPA) or by activating actuators.
    [0036] The inverter 10i comprises three branches 10ia, 10we and 10ic that release the alternative currents ha, hb and hc in respective output terminals 12a, 12b and 12c of the control device. Similarly, the IO2 inverter has three branches 102a, 102b and 1Ü2C that emit alternate currents La, hb and hc over output terminals 12a, 12b and 12c, respectively. The phase currents la, lb and lc supplied for stat windings la of electrical machine 30 are such that la = ha + ha, = hb + hb and lc = hc + hc. Inverters 10i and W2 have similar constructions and, in normal operation, and are controlled in the same way, so that currents 11a and 12a are substantially in phase and equal to 1/2. Similarly, hb and hb are substantially in phase and equal to lb / 2 and hc and hc are substantially in phase and equal to lc / 2.
    [0037] The branches of the inverter are all similar. Each branch, for example, branch 10ia (Figures 3 and 4) comprises two switches 102ia and 104ia, which are connected in series between the power supply bands + V and -V and from one part to another at a point 106ia where the current ha is emitted. Switches 102ia and 104ia are typically electronic switches and are comprised of power transistors, for example, bipolar or IGBT isolated gate transistors (bipolar isolated gate transistor). Other types of power switches could be used, such as MOSFET, COOLMOS, JFET or thyristors. The continuous power supply is modulated by switching the power transistors 102ia and 104ia to obtain an alternating current, with a substantially sinusoidal appearance.
    [0038] She usually uses a PWM (MLI). The switching pulses are applied between the grid (port) and the emitter of transistors 102ia and 104ia, by means of a drive circuit (conductor) 108ia to command the successive switching of the transistors, to another one, the conductor, while the another is blocked. The freewheeling diodes 110ia, 112ia are branched between the collector and the emitter of transistors 102ia, 104ia in order to allow the operation of the bridge branch in 4 quadrants defined by the output voltage and output current axes.
    [0039] A desaturation detection circuit 114ia is connected to power transistors 102ia, 104ia to collect information representative of the voltage between the collector and the emitter, when the transistors are controlled in the conductive state. When this information indicates the presence of a collector / emitter voltage greater than a maximum threshold, a defect signal from the inverter branch transistor is output from circuit 114ia.
    [0040] Circuits 108ia and 114ia are connected to an inverter control circuit 40 that comprises a pulse generator to produce an example of PWM (MLI), for example, of the vector type. As an example, the curve (a) of figure 5 shows the variation of the cyclic return of the switching pulses corresponding to a phase A, for periods of electric current in this phase, that is to say the variation of the cyclic return of the pulses applied to one of the power transistors of branches 10ia and 102a, the cyclical return of the pulses that control the switching of the other power transistor of the same branches being complementary. The duration T represents the period of electrical currents supplied by the inverters. Curves (b) and (c) represent the variations in the cyclic returns of the switching pulses corresponding to the other phases B and C of the electrical machine, while curve (n) shows the cyclic return that corresponds to the neutral point of the electrical machine. Curves (a), (b) and (c) have the same appearance of variation, but are mutually out of step 2π / 3. The appearance of curves (a), (b) and (c) is not sinusoidal, PWM (MLI) being selected to optimize the use of the potential source of continuous electrical energy. The variation of the cyclic return at the neutral point of the electric machine (curve (n)) shows that the substantially sinusoidal voltages between the neutral and each phase are reconstituted.
    [0041] A three-phase electrical machine control device as described above is well known in itself.
    [0042] According to the invention, in the case of a defect detected in one branch of the inverter (UPS), the defective branch is selectively isolated and the PWM (MLI) is modified to allow the branch corresponding to the same phase of another inverter, so that can provide the full current of the corresponding phase, but without imposing excessive size related to the need to switch the power switches at a current of greater magnitude than in normal operation.
    [0043] For the purpose of selective isolation of a defective inverter branch (UPS), isolation contactors of the monopolar branches 14ia, 14w and 14ic are inserted between branches 10ia, 10ib and 10ic and the outputs 12a, 12b and 12c, respectively, and the monopolar contactors 142a, 142b and 142c which are inserted between branches 102a, 102b and 1Ü2c and the outputs 12a, 12b and 12c, respectively, these different contactors being controlled selectively by the control circuit 40.
    [0044] In the case of detecting a defect in an inverter branch (UPS), for example, branch 102a, circuit 40 commands the opening of the isolation contactor of the corresponding branch 142a, as shown in figure 6. The completeness of full phase current la is then supplied by branch 10ia, while phase currents lb and lc are still obtained from the respective contributions hb, hb and hc, hc of branches 10w, 1Ü2b and 10ic, 1Ü2c.
    [0045] The ILM (MLI) is modified in such a way that the power transistors of branch 10ia are kept conductors without switching so much so that the current la that passes through it, is in an absolute value greater than a threshold substantially equal to lmax / 2 where Imax is the absolute maximum value of the current phase current. The threshold may, for example, be between 0.8 and 1.2 (Uax / 2).
    [0046] The curve (a1) of figure 7 shows the variation in time of the cyclic return of the switching pulses corresponding to phase A according to the modified PWM (MLI) after the fault detection in a branch of the inverter (UPS) corresponding to the phase A. Each power transistor in the branch of the inverter resuming the full current of phase A is kept conductive without switching for a period corresponding to approximately one third of period T (which corresponds to a value above the threshold of lmax / 2). The ranges t + and t- correspond, for example, to the driving durations without switching the power transistor 11 Chá located next to the + V rail power supply and the 112ia power transistor located on the rail power supply side - V, respectively. Thus, over a period T, during T / 3 (band), the power transistor 110ia is in permanent conduction and transistor 112ia is non-conductive (cyclic ratio equal to 1) for the next T / 6 duration, the return cyclic decreases from 1 to 0, during the next T / 3, transistor 112ia is in permanent conduction and transistor 110ia is non-conductive (cyclic ratio equal to 0) and during the remaining T6 period, the cyclic ratio grows from 0 to 1.
    [0047] The current passing through branch 10ia, in the example above of a defect detected in branch 102a, is increased, generally doubled, in relation to the nominal operation without defects. However, this does not lead to a doubling of dissipation, as switching losses are reduced compared to nominal operation. With IGBT-type power transistors, for which the losses due to conduction are the same order of magnitude as the switching losses, the total dissipation of each power transistor is increased by a proportion of about 1.4. The corresponding increase in the junction temperature is acceptable from the point of view of reliability, since it is normally included in a safety margin of operation of the power transistor, since the operation in the fault mode is limited to the response time for the maintenance. In addition, due to the presence of bands without switching, the dissipation of the freewheeling diodes of the inverter branch that returns to the full phase current integrality is greatly reduced.
    [0048] In figure 7, curves (b1) and (c1) represent the variation of the cyclic returns corresponding to phases B and C of the electric machine and the curve (rf) represents the variation of the cyclic return of the machine to neutral. Curves (b1) and (c1) represent the movements of similar variations that are modified by returns to the movements of the variation curves (b) and (c) of Figure 5, in order to be able to reconstruct the substantially sinusoidal variations of the voltages between neutral and the phases. Thus, the modification of the PWM (MLI) must involve not only the phase corresponding to the branch of the defective inverter, but also the other phases, in order to preserve these sensitively sinusoidal variations. Preferably, with the modified PWM (MLI), no switching pulse is applied to the defective branch and the gate voltage of the branch power transistors is maintained at a level corresponding to a blocking state.
    [0049] Well understood that, figure 7 represents an example among many possible of a PWM (MLI) modified after a defect.
    [0050] Figure 8 shows the successive steps of an example of a defect detection and management process that can be implemented by the control circuit 40.
    [0051] Control defect detection step 51 involves monitoring the potential signals emitted by the desaturation detection circuits, associated with the inverter branches (UPS), such as circuit 114ia in figure 4. Alternatively, a branch defect of the inverter (UPS) could also be detected by monitoring the level of current produced by this branch.
    [0052] When a defect is detected (test 52), it can be confirmed (step 53). The confirmation of the defect can be obtained by interrupting the operation of the inverters plus restarting them, to verify the potential for eventual persistence. When the defects are detected by detecting the desaturation of the power transistors, the measurement of the current produced by the branch of the inverter suspected of failure, can be used as confirmation.
    [0053] When the defect is confirmed (test 54), the operation of the inverters and their control are inhibited, for example, by interrupting the PWM (step 55) and the isolation switch associated with the defective branch is opened (step 56 ). It will be noted that the presence of isolation switches is preferred to prevent, in the event of a short circuit defect in a power switch, that this defect affects the functioning of the rest of the device. However, the presence of such switches can be omitted if the probability of a short circuit is negligible compared to the expected operating reliability.
    [0054] Then, the PWM is reconfigured and the PWM thus modified, is applied to start the inverter branches, except for those with defects (step 57).
    [0055] Figure 9 shows an example of implanting the control device of figure 3 in a torque regulator 60 to control a synchronous electric machine 30.
    [0056] A circuit 62 is connected to an angular position sensor 32 associated to an axis of the electric machine 30, or to an axis solidary rotating on itself, to provide the information representative of the speed of rotation and the angular position of the motor of the electric machine 30.
    [0057] Circuits 64ia, 64w and 64ic, are connected to current sensors mounted on the output lines of the branches of the inverter 10i to provide the representative information of the currents, la, lb and lc. Likewise, circuits 642a, 642b and 642c are connected to current sensors mounted on the output lines of the inverter branches 102 to provide information representative of currents, ha, hb and hc. Sum circuits 66 provide information representative of phase currents la, lb and lc. This information is received by a calculation circuit 68, which elaborates, from the values of the phase currents, the information lqm and Idm representing the measured binary current and the measured flow current of the electrical machine.
    [0058] A regulating circuit 70 provides the control circuit of the inverters 40 with the voltage level and angle information for each phase of the machine, in order to dominate the values of lqm and Idm to adjustment values lqc (representing the torque of the adjustment) and ldc, while ensuring an optimum position of the statistical flow in relation to the angular position of the rotor of the electrical machine 30. For this purpose, the regulating circuit 70 receives the information, lqm, Idm provided by the calculation circuit 68, the adjustment information lqc and ldc and information on speed and angular position are provided by circuit 62.
    [0059] A torque regulator (TCU) as described above is well known in itself, and in its own principle.
    [0060] The voltage and frequency adjustment information received by the control circuit of the inverters 40 are used by a numerical control unit 42 to direct a set 44 of the width of the modulated pulses generating, in the absence of defect detection, a nominal generator PWM (MLI), and the pulses being applied in parallel to the respective branches of inverters 10i and W2.
    [0061] A switching of the PWM mode between the modified PWM nominal PWM can be controlled by the numerical control unit 42 to turn off the nominal PWM generator 44 and put into service a modified PWM generator 46, the switching between the two PWM generator modes being symbolized by an alternator 48. The modified PWM generator has the outputs associated with the branches of inverters 10i and W2. In the event of a fault detection, the nominal PWM generator 44 is deactivated, the modified PWM generator 46 is programmed under the command of a numerical control unit 42 to generate its widths of pulse outputs modulated according to the branch of the defective inverter and switch it to the modified PWM generator 46 being controlled.
    [0062] In the example above, we considered the case of controlling a three-phase machine with at least two inverters in parallel.
    [0063] Naturally, the invention is applied to multiphase machines having a number of phases greater than three adapting to the number of branches of the inverters.
    [0064] The invention is also applicable to the control of a polyphasic machine with at least more than two parallel inverters, each branch of the inverter, then producing approximately 1 / n of corresponding phase current, n being the number of inverters . In the event of a fault in one branch of the inverter, the current of the phase in question must then be assumed by the other n-1 branches of other corresponding branches of other inverters. The PWM is modified so that, in each of the other branches, the power switches are maintained as energy conductors without switching, so much so that the intensity of the current flowing through it, in its absolute value, exceeds a substantially equal threshold. a ((n - 1) / n). (lmax) where Imax is the maximum value n of the phase current, in absolute value. We can select a threshold, for example, between 80% and 120% of ((n - 1) / n). (Lmax).
    权利要求:
    Claims (9)
    [0001]
    1. Method of control of the polyphasic electric machine by means of at least two polyphasic inverters in parallel, each inverter comprising branches equal in number to those of the phases of the electric machine and each branch comprising two power switches connected in series between two opposite terminals of a continuous electrical supply and of a part opposite the other from a point connected to an electrical phase of the electrical machine, the method comprising the control of the inverters by pulse width modulation commanding the switching of the power switches, and the detection of a defect of the inverter branch, the method being characterized by the fact that, in response to the detection of a defective branch of the inverter, the defective branch is isolated, the phase of the electrical machine corresponding to the defective branch is fed by another branch of the inverter. corresponding inverter, and pulse width modulation is changed notably to make conductors successively and without switching the inter power interrupters of the or each other branch of the corresponding inverter when, in absolute value, the phase current intensity is greater than or equal to a threshold between 80% and 120% of ((n-1) / n). (lmax ), where n is the number of inverters and Imax is the maximum intensity of the phase current in absolute value, while maintaining a significantly sinusoidal voltage generation over each phase of the machine.
    [0002]
    2. Method according to claim 1 for controlling a three-phase electrical machine by means of two three-phase inverters in parallel, characterized by the fact that, during each period of the phase current corresponding to the faulty inverter branch, the power switches ( UPS) from another branch of the corresponding inverter are made conductors successively and without switching each for about 1/3 of the said period.
    [0003]
    Method according to either of Claims 1 or 2, characterized in that the isolation of the defective inverter branch is carried out by opening a branch isolation switch connected between the inverter branch and the corresponding phase of the electric machine.
    [0004]
    Method according to either of claims 1 or 2, characterized in that the isolation of the defective inverter branch is done by inhibiting the attack circuits of the defective branch power switches.
    [0005]
    5. Polyphasic electrical machine control device, comprising: - at least two polyphasic inverters in parallel (10i, W2), each inverter comprising branches equal in number to the phase currents to be supplied and each branch comprising two power switches connected in series between two opposite terminals of a continuous power supply on both sides of a point connected to a respective phase current output terminal, - a pulse width modulation inverter control circuit (40) controlling the switching of the power switches, and - a defect detection system for the inverter branches connected to the control circuit, characterized by the fact that, in response to the detection of a defective inverter branch, the inverter control circuit is arranged to : - isolate the defective inverter branch so that the corresponding phase current is supplied by another corresponding inverter branch, and - modify the pulse width modulation, in particular, to make the power switches of another branch of the corresponding inverter successively and without switching when, in absolute value, the phase intensity of the current in question is greater than or equal to a threshold between 80% and 120% of ((n-1) / n). (lmax), where n is the number of inverters and Imax is the maximum intensity of the phase current in absolute value, while maintaining a generation of appreciably sinusoidal voltage in each phase of the machine.
    [0006]
    6. Device, according to claim 5, for controlling a three-phase electrical machine by means of two three-phase inverters (10i, 102) in parallel, characterized by the fact that, in response to the detection of a defective branch of the inverter, the control circuit (40) of the inverters is arranged to change the pulse width modulation, in particular, to make conductors successively and without switching the power switches of another branch of the corresponding inverter during the respective periods of time equal to approximately 1 / 3 of the period of the current phase current.
    [0007]
    7. Device according to claim 5 or 6, characterized by the fact that it comprises isolation switches (14) connected, respectively, to the branches of the inverters to be able to selectively isolate a branch of the power inverter in relation to the current output of corresponding phase.
    [0008]
    8. Device according to claim 5 or 6, characterized by the fact that the power switches of the inverter branches are controlled by means of attack circuits and the inverter control circuit (40) is arranged to, in response to a branch defect detection, inhibit the operation of the attack circuits of the defective branch power switches,
    [0009]
    9. Aircraft propulsion engine starting system characterized by the fact that it comprises a polyphasic electric machine (30) controlled in motor mode to drive a propulsion motor shaft and a device as defined in any of claims 5 to 8 for control the multiphase electric machine.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112012017854B1|2020-09-01|METHOD AND DEVICE FOR MULTIPHASE ELECTRICAL MACHINE CONTROL
    ES2457741T3|2014-04-29|Voltage ripple and control procedure of such inverter
    US7436686B2|2008-10-14|Reconfigurable voltage inverter with tolerance to failures
    US7277304B2|2007-10-02|Multiple inverter system with single controller and related operating method
    RU2402852C1|2010-10-27|Power supply system with two serially connected invertors for multi-phase electromechanical drive
    BR112014019687B1|2021-06-08|dc power system to power a vessel
    JP2013529055A5|2015-07-23|
    US9705442B2|2017-07-11|Asymmetrical multi-lane multi-phase motor drives
    BRPI0919080B1|2019-07-30|ELECTRICAL DRIVER
    JPH08182105A|1996-07-12|Controller for electric vehicle
    BR102013031894A2|2015-11-17|electric transmission train of a gas compression device and equipment
    Tabbache et al.2013|PWM inverter-fed induction motor-based electrical vehicles fault-tolerant control
    CN110957753A|2020-04-03|System and method for controlling an uninterruptible power supply for an electric power system
    US11211893B2|2021-12-28|Motor controller
    Dabour et al.2016|A new fifteen-switch inverter topology for two five-phase motors drive
    BR112014018139B1|2021-06-01|DC POWER SUPPLY UNIT AND POWER SUPPLY UNIT
    US20200007057A1|2020-01-02|Shorted rotating diode protection for synchronous machines
    Jlassi et al.2015|Power switch and current sensor fault-tolerant control of PMSG drives for wind turbine systems
    BR102018015889A2|2019-06-04|ELECTRIC GENERATOR TAPPING
    US8941351B2|2015-01-27|Emergency adjustment device for blade pitch adjustment systems for wind energy installations
    Pires et al.2021|Multilevel converter with fault-tolerant capability for the switched reluctance machine
    Selvaraj et al.2020|Shared-leg fault tolerant operation of multi-channeled power converters serving to large rated DFIM unit
    Moujahed et al.2018|Open-Circuit Fault Detection for IGBTs Based on Leg Voltage Approach in SVM-DTC of PMSM
    TWI505625B|2015-10-21|Power conversion system and its control method
    RU2540959C2|2015-02-10|Alternating current drive of improved survivability
    同族专利:
    公开号 | 公开日
    CA2786410A1|2011-08-04|
    US8810179B2|2014-08-19|
    WO2011092408A1|2011-08-04|
    EP2529476A1|2012-12-05|
    BR112012017854A2|2016-04-19|
    US20130009580A1|2013-01-10|
    FR2955719B1|2012-02-24|
    CA2786410C|2017-02-28|
    EP2529476B1|2014-03-19|
    FR2955719A1|2011-07-29|
    CN102771042B|2014-12-31|
    RU2532415C2|2014-11-10|
    RU2012136644A|2014-03-10|
    JP2013518549A|2013-05-20|
    JP5587432B2|2014-09-10|
    CN102771042A|2012-11-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH09308254A|1996-05-09|1997-11-28|Toshiba Corp|Auxiliary power supply|
    GB2330254B|1997-10-09|2000-10-18|Toshiba Kk|Multiple inverter system|
    JP2005328637A|2004-05-14|2005-11-24|Toshiba Mitsubishi-Electric Industrial System Corp|Parallel multiplex inverter device|
    DE102004030228B4|2004-06-23|2008-06-19|Siemens Ag|Circuit of pulse inverters in railway vehicles|
    US7649335B2|2005-06-07|2010-01-19|Toyota Jidosha Kabushiki Kaisha|Vehicular power supply system and vehicle|
    JP4760723B2|2006-11-20|2011-08-31|トヨタ自動車株式会社|Power supply circuit control device|
    US7403364B2|2006-11-30|2008-07-22|Eaton Corporation|Power system fault characterization using transformed values|
    RU2375809C1|2008-10-14|2009-12-10|Государственное образовательное учреждение высшего профессионального образования "Поволжский государственный университет телекоммуникаций и информатики"|Method for control of connected in parallel inverters|
    EP2343211B1|2008-10-31|2018-04-04|Toyota Jidosha Kabushiki Kaisha|Electric power source system for electrically driven vehicle and its control method|
    US20120055727A1|2009-05-13|2012-03-08|Toyota Jidosha Kabushiki Kaisha|Power converting apparatus for vehicle and vehicle including same|
    CN102421626B|2009-05-15|2013-01-02|丰田自动车株式会社|Power conversion device, power conversion device control method and vehicle in which same is installed|DE102011084580A1|2011-10-14|2013-04-18|Universität Bremen|Wind power machine|
    JP5622053B2|2012-02-09|2014-11-12|株式会社デンソー|Control device for multi-phase rotating machine and electric power steering device using the same|
    JP5606506B2|2012-09-20|2014-10-15|三菱電機株式会社|Drive control device and drive control method|
    JP5614661B2|2012-10-09|2014-10-29|株式会社デンソー|Rotating electrical machine control device and electric power steering device using the same|
    FR3001343B1|2013-01-18|2015-03-13|Thales Sa|MODULAR BAY OF INVERTERS AND ITS CONTROL METHOD FOR A SET OF ELECTRIC MACHINES HAVING POSITION SENSORS|
    CN103269197B|2013-04-28|2016-08-17|中国船舶重工集团公司第七一二研究所|A kind of suppression low-pressure high-power heterogeneous frequency conversion motor dither system and method|
    US20150145462A1|2013-11-25|2015-05-28|Rockwell Automation Technologies, Inc.|Method and apparatus for current auto balancing for parallel converter systems|
    US9304657B2|2013-12-31|2016-04-05|Abbyy Development Llc|Audio tagging|
    CN104065318B|2014-06-26|2016-08-31|中冶南方（武汉）自动化有限公司|A kind of converter closed-loop vector redundancy control method during high-speed cruising|
    CN104362843B|2014-10-24|2017-06-13|阳光电源股份有限公司|Parallel inverter system and its halt control method and stop control apparatus|
    FR3027748B1|2014-10-27|2016-11-04|Valeo Equip Electr Moteur|METHOD AND DEVICE FOR CONTROLLING A POLYNHASE SYNCHRONOUS ROTARY ELECTRIC MACHINE AND REVERSIBLE ELECTRIC MACHINE FOR A MOTOR VEHICLE CORRESPONDING THERETO|
    US9455651B2|2014-12-16|2016-09-27|Caterpillar Inc.|Motor driver having integrated braking chopper|
    JP6405978B2|2014-12-16|2018-10-17|株式会社デンソーウェーブ|Inverter device|
    DE112016002616T5|2015-06-11|2018-03-08|Ksr Ip Holdings Llc|Modulation scheme for multiphase motors|
    EP3131198A1|2015-08-10|2017-02-15|Goodrich Actuation Systems Limited|Control strategy of a dual lane fault tolerant permanent magnet motor to reduce drag torque under fault condition|
    JP6630539B2|2015-11-05|2020-01-15|日立オートモティブシステムズ株式会社|Power conversion device and electric power steering device|
    KR20180079821A|2017-01-02|2018-07-11|엘지전자 주식회사|Chiller|
    CN110495089B|2017-03-31|2021-06-22|日本电产株式会社|Power conversion device, motor drive unit, and electric power steering device|
    CN109802450A|2019-01-10|2019-05-24|东北电力大学|The method of AC system interconnection ability to transmit electricity is improved under multiple-circuit line failure|
    CN110212628B|2019-04-24|2021-12-10|广东工业大学|Switching method of solar photovoltaic power generation inversion control switching system|
    EP3772817A1|2019-08-05|2021-02-10|Hamilton Sundstrand Corporation|Solid state phase isolation of multi-phase motors|
    CN110927610B|2019-11-06|2020-12-08|华中科技大学|Inverter power supply voltage detection circuit fault diagnosis method and system based on modulation wave|
    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-06-02| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-09-01| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 06/01/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1050582|2010-01-28|
    FR1050582A|FR2955719B1|2010-01-28|2010-01-28|METHOD AND DEVICE FOR CONTROLLING POLYPHASE ELECTRIC MACHINE|
    PCT/FR2011/050016|WO2011092408A1|2010-01-28|2011-01-06|Method and device for controlling a polyphase electrical machine|
    [返回顶部]