公开(公告)号：US20240364247A1

公开(公告)日：2024-10-31

申请号：US18624043

申请日：2024-04-01

申请人： ZHEJIANG UNIVERSITY ,  ZHEJIANG UNIVERSITY ADVANCED ELECTRICAL EQUIPMENT INNOVATION CENTER

发明人： Mengting YE ,  Yanfei CAO ,  Zhichen LIN ,  Zhiqiang WANG ,  Tingna SHI ,  Changliang XIA

IPC分类号： H02P21/18 ,  H02P21/00 ,  H02P21/22

CPC分类号： H02P21/18 ,  H02P21/0017 ,  H02P21/22 ,  H02P2207/05

摘要： A direct locating method for calculating a position of a permanent magnet synchronous motor is provided. The direct locating method performed by a processor includes: three-phase stator currents of the permanent magnet synchronous motor are converted by coordinate to obtain the stator currents in the αβ two-phase stationary coordinate system, and the initial position region is determined. The stator currents in dq two-phase synchronous rotating coordinate system are obtained by coordinate conversion. The stator current cost model is established. Then the d-axis stator current is inputted into the cost model and the position is outputted, and the final estimated position is determined to realize the direct locating of the permanent magnet synchronous motor's position.

公开(公告)号：US12103406B2

公开(公告)日：2024-10-01

申请号：US18161974

申请日：2023-01-31

申请人： Delphi Technologies IP Limited

发明人： Mark Wendell Gose ,  Seyed R. Zarabadi ,  David Paul Buehler ,  Kevin M. Gertiser

IPC分类号： B60L50/51 ,  B60L3/00 ,  B60L15/00 ,  B60L15/08 ,  B60L50/40 ,  B60L50/60 ,  B60L50/64 ,  B60L53/20 ,  B60L53/22 ,  B60L53/62 ,  B60R16/02 ,  G01R15/20 ,  G06F1/08 ,  G06F13/40 ,  H01L21/48 ,  H01L23/00 ,  H01L23/15 ,  H01L23/367 ,  H01L23/373 ,  H01L23/40 ,  H01L23/467 ,  H01L23/473 ,  H01L23/495 ,  H01L23/538 ,  H01L25/00 ,  H01L25/07 ,  H01L29/66 ,  H02J7/00 ,  H02M1/00 ,  H02M1/08 ,  H02M1/084 ,  H02M1/088 ,  H02M1/12 ,  H02M1/32 ,  H02M1/42 ,  H02M1/44 ,  H02M3/335 ,  H02M7/00 ,  H02M7/537 ,  H02M7/5387 ,  H02M7/5395 ,  H02P27/06 ,  H02P27/08 ,  H02P29/024 ,  H02P29/68 ,  H05K1/14 ,  H05K1/18 ,  H05K5/02 ,  H05K7/20 ,  B60L15/20 ,  H03K19/20

CPC分类号： B60L50/60 ,  B60L3/003 ,  B60L15/007 ,  B60L15/08 ,  B60L50/40 ,  B60L50/51 ,  B60L50/64 ,  B60L53/20 ,  B60L53/22 ,  B60L53/62 ,  B60R16/02 ,  G01R15/20 ,  G06F1/08 ,  G06F13/4004 ,  H01L21/4882 ,  H01L23/15 ,  H01L23/3672 ,  H01L23/3675 ,  H01L23/3735 ,  H01L23/4006 ,  H01L23/467 ,  H01L23/473 ,  H01L23/49562 ,  H01L23/5383 ,  H01L24/32 ,  H01L24/33 ,  H01L25/072 ,  H01L25/50 ,  H01L29/66553 ,  H02J7/0063 ,  H02M1/0009 ,  H02M1/0054 ,  H02M1/08 ,  H02M1/084 ,  H02M1/088 ,  H02M1/123 ,  H02M1/32 ,  H02M1/322 ,  H02M1/327 ,  H02M1/4258 ,  H02M1/44 ,  H02M3/33523 ,  H02M7/003 ,  H02M7/537 ,  H02M7/5387 ,  H02M7/53871 ,  H02M7/53875 ,  H02M7/5395 ,  H02P27/06 ,  H02P27/08 ,  H02P27/085 ,  H02P29/024 ,  H02P29/027 ,  H02P29/68 ,  H05K1/145 ,  H05K1/181 ,  H05K1/182 ,  H05K5/0247 ,  H05K7/20154 ,  H05K7/2049 ,  H05K7/20854 ,  H05K7/209 ,  H05K7/20927 ,  B60L15/20 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2210/42 ,  B60L2210/44 ,  B60L2240/36 ,  G06F2213/40 ,  H01L2023/405 ,  H01L2023/4087 ,  H01L2224/32225 ,  H01L2224/32245 ,  H01L2224/33181 ,  H02J2207/20 ,  H02P2207/05 ,  H03K19/20 ,  H05K2201/042 ,  H05K2201/10166

摘要： A system includes: an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a first power module including: a first connection; a second connection; a first power switch including a first gate terminal, the first power switch configured to control a first flow of current between the first connection and the second connection based on a first signal to the first gate terminal; and a first point-of-use controller configured to provide the first signal to the first gate terminal to control the first power switch.

公开(公告)号：US20240322722A1

公开(公告)日：2024-09-26

申请号：US18577730

申请日：2021-08-24

申请人： Mitsubishi Electric Corporation

发明人： Kota TERAMOTO ,  Tetsuya KOJIMA

IPC分类号： H02P21/18 ,  H02P6/18 ,  H02P21/06 ,  H02P21/14 ,  H02P21/22

CPC分类号： H02P21/18 ,  H02P6/183 ,  H02P21/06 ,  H02P21/141 ,  H02P21/22 ,  H02P2207/05

摘要： A control device includes a current detector that detects a stator current flowing between a voltage application unit and a stator winding of a rotating machine; a control unit that computes a voltage command value that is a command value for a stator voltage to be applied to the stator winding on the basis of the stator current and a rotor position serving as position information of a rotor of the rotating machine; a PWM modulator that performs on-off control of switching elements of the voltage application unit so that a smoothed value of the stator voltage matches the voltage command value; and a position estimator that estimates, on the basis of the voltage command value and the stator current, the rotor position through a filter that removes a frequency component of a fundamental frequency of rotational speed of the rotating machine.

公开(公告)号：US12101048B2

公开(公告)日：2024-09-24

申请号：US18576915

申请日：2021-07-06

申请人： NISSAN MOTOR CO., LTD. ,  RENAULT s.a.s.

发明人： Yuka Okuyama ,  Abdelkader Bouarfa

IPC分类号： H02P27/08 ,  H02P6/32 ,  H02P21/18 ,  H02P21/20

CPC分类号： H02P27/085 ,  H02P6/32 ,  H02P21/18 ,  H02P21/20 ,  H02P2207/05

摘要： A motor control method for controlling a motor by transmitting a PWM signal at a predetermined carrier frequency to a power converter configured to supply power to the motor and performing switching control on the power converter, the method including, in a characteristic coordinate having a rotation speed of the motor and a torque of the motor as axes, setting the carrier frequency to be a reference frequency when an operating point representing a current rotation speed and torque is included in a first region, selecting and setting the carrier frequency to be either the reference frequency or a low frequency lower than the reference frequency when the operating point is included in a second region, and setting the carrier frequency to be the low frequency when the operating point is included in a third region.

公开(公告)号：US12092693B2

公开(公告)日：2024-09-17

申请号：US17849577

申请日：2022-06-24

申请人： Tektronix, Inc.

发明人： Parjanya Adiga ,  Niranjan R. Hegde ,  Krishna N H. Sri ,  Gary J. Waldo ,  Yogesh M. Pai

IPC分类号： G01R31/34 ,  H02P6/18 ,  H02P21/18 ,  H02P25/026 ,  H02P27/08

CPC分类号： G01R31/343 ,  H02P6/18 ,  H02P21/18 ,  H02P25/026 ,  H02P27/08 ,  H02P2207/05

摘要： A test and measurement instrument includes one or more sensors configured to measure a mechanical position of a synchronous machine driven by analog three-phase signals, a converter to determine an instantaneous electrical angle from the measured mechanical position, a transform configured to generate DQ0 signals based on the instantaneous electrical angle, and a vector generator structured to produce a resultant vector from the DQ0 signals. Methods are also described.

公开(公告)号：US12088224B2

公开(公告)日：2024-09-10

申请号：US17640216

申请日：2021-05-06

申请人： DALIAN UNIVERSITY OF TECHNOLOGY

发明人： Ximing Sun ,  Jianyi Zhang

IPC分类号： H02P6/18 ,  H02P21/00 ,  H02P21/18 ,  H02P25/022

CPC分类号： H02P21/0007 ,  H02P21/18 ,  H02P25/022 ,  H02P2207/05

摘要： A finite time speed control method for a permanent magnet synchronous motor (PMSM) based on a fast integral terminal sliding mode and disturbance estimation comprises: firstly, determining a mathematical model of a speed loop of the PMSM under the influence of system parameters uncertainty and unknown load torque; secondly, designing an improved fast integral terminal sliding surface on the basis of the idea of terminal sliding mode control; then, proposing a disturbance estimation method based on an adaptive fuzzy system with respect to the disturbance in a PMSM system; designing a PMSM speed controller on this basis; and finally, completing the concrete implementation of the whole technical solution. The present invention designs the fast integral terminal sliding surface and a sliding mode control law to ensure that a motor speed tracking error converges to zero within finite time and enhances the rapidity of a PMSM speed regulating system.

公开(公告)号：US12074542B2

公开(公告)日：2024-08-27

申请号：US17641179

申请日：2020-08-14

申请人： HITACHI ASTEMO, LTD.

发明人： Takafumi Hara ,  Toshiyuki Ajima ,  Katsuhiro Hoshino ,  Noriyuki Maekawa

IPC分类号： H02P27/12 ,  H02P21/16 ,  H02P21/22 ,  B60K1/00 ,  B60K6/26

CPC分类号： H02P21/16 ,  H02P21/22 ,  H02P27/12 ,  B60K1/00 ,  B60K6/26 ,  B60Y2200/92 ,  B60Y2400/604 ,  H02P2207/05

摘要： Conventionally, there is a problem that switching loss of an inverter increases in a case where a change such as improvement in a switching frequency is involved. The battery voltage E and the torque command T* are input to the first current command generation unit 111. The battery voltage E, the torque command T*, and a voltage utilization rate obtained by dividing a line voltage effective value by a battery voltage (DC voltage) are input to a second current command generation unit 112. A magnet temperature Tmag of a rotor magnet is input to a current command selection unit 113, and a current command output from the first current command generation unit 111 is selected in normal operation, and the second current command generation unit 112 is selected in a case where the magnet temperature exceeds a predetermined value. The second current command generation unit 112 is configured not to obtain the voltage utilization rate of 0.3 to 0.4.

公开(公告)号：US20240204591A1

公开(公告)日：2024-06-20

申请号：US18593229

申请日：2024-03-01

申请人： Tau Motors, Inc.

发明人： Walter Wesley Pennington, III ,  Matthew J. Rubin ,  Gregory Gordon Stevenson ,  Michael Parker Owen

IPC分类号： H02K1/22 ,  H02K1/02 ,  H02K21/16 ,  H02P7/29

CPC分类号： H02K1/223 ,  H02K1/02 ,  H02K21/16 ,  H02P7/29 ,  H02P2207/05

摘要： A stator defines multiple stator poles with associated electrical windings. A rotor includes multiple rotor poles. The rotor is movable with respect to the stator and defines, together with the stator, a nominal gap between the stator poles and the rotor poles. The rotor poles includes a magnetically permeable pole material. The rotor also includes a series of frequency programmable flux channels (FPFCs). Each FPFC includes a conductive loop surrounding an associated rotor pole. The stator and the rotor are arranged such that the electrical windings in the stator induce an excitement current within at least one of the FPFCs during start-up.

公开(公告)号：US20240136963A1

公开(公告)日：2024-04-25

申请号：US17938710

申请日：2022-10-07

申请人： Mitsubishi Electric Research Laboratories, Inc.

发明人： Yebin Wang

IPC分类号： H02P25/022 ,  H02P6/08 ,  H02P6/34 ,  H02P21/14

CPC分类号： H02P25/022 ,  H02P6/08 ,  H02P6/34 ,  H02P21/14 ,  H02P2207/05

摘要： The present disclosure discloses a system and a method for controlling a permanent magnet synchronous motor to optimally track a reference torque. The method comprises reformulating a model of the permanent magnet synchronous motor based on one or more unknown parameters of the model, and the reference torque, determining an initial feedback control policy and an initial feedforward control policy, based on priori knowledge of parameters of the reformulated model of the permanent magnet synchronous motor, and executing iteratively a gain tuning algorithm, until a termination condition is met, to determine an optimal feedback gain and an optimal feedforward gain. The method further comprises determining a control command based on the optimal feedback gain and the optimal feedforward gain, and controlling the permanent magnet synchronous motor based on the determined control command to optimally track the reference torque.

公开(公告)号：US20240120865A1

公开(公告)日：2024-04-11

申请号：US18259427

申请日：2021-10-29

申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

发明人： Takumi ITO

IPC分类号： H02P21/18 ,  H02P21/00 ,  H02P21/34 ,  H02P27/06

CPC分类号： H02P21/18 ,  H02P21/0003 ,  H02P21/34 ,  H02P27/06 ,  H02P2207/05

摘要： A drive system according to an aspect of the embodiment includes a first phase estimation unit, a second phase estimation unit, a state determination unit, and a drive control unit. The first phase estimation unit generates a first phase obtained by estimating a phase of a rotor on the basis of an initial phase at a startup stage of the synchronous motor. The second phase estimation unit generates a second phase obtained by estimating the phase of the rotating rotor on the basis of the operation state of the synchronous motor. The state determination unit determines the operation state of the synchronous motor. The drive control unit controls the driving of the synchronous motor by using any one of the first phase and the second phase according to the determination result of the operation state of the synchronous motor. The first phase estimation unit corrects the first phase by using the detection result of the rotor position detected from the start of the startup procedure of the synchronous motor to the successful startup.