公开(公告)号：US20230262945A1

公开(公告)日：2023-08-17

申请号：US18169047

申请日：2023-02-14

Applicant: AUDI AG

Inventor： Daniel RUPPERT

IPC: H05K7/20 ,  H02P27/05

CPC classification number: H05K7/2089 ,  H02P27/05 ,  H02P2207/05

Abstract: An electrical switching device for operating an electrical machine comprises an inverter circuit, an exciter circuit and a cooling device, wherein the exciter circuit is formed by at least one circuit module, wherein the circuit module is thermally coupled to the cooling device and comprises a discharge circuit, connected to the inverter circuit and adapted to discharge at least one energy accumulator of the inverter circuit.

公开(公告)号：US09160252B1

公开(公告)日：2015-10-13

申请号：US13888876

申请日：2013-05-07

Applicant: Timothy M. Pullen

Inventor： Timothy M. Pullen

IPC: F04D15/00 ,  H02J3/00 ,  H02M7/5387 ,  H02P27/06 ,  H02P27/05 ,  G09F19/02

CPC classification number: H02M7/53871 ,  G09F19/02 ,  H02M2001/007 ,  H02P27/05 ,  H02P27/06 ,  H02P29/50

Abstract: A system is disclosed which utilizes a non-pulse width modulated signal, which provides a fully rectified sinusoidal modulated DC link to a single phase AC motor to emulate a variable single phase AC power line. The system provides for reduced EMI and reduced size when compared to a controller with a PWM drive signal.

Abstract translation: 公开了一种利用非脉冲宽度调制信号的系统，该信号向单相AC电动机提供完全整流的正弦调制DC链路以仿真可变单相AC电力线。 与具有PWM驱动信号的控制器相比，该系统提供降低的EMI和减小的尺寸。

公开(公告)号：US20110140433A1

公开(公告)日：2011-06-16

申请号：US13003773

申请日：2009-07-07

Applicant: Erik Carl Lehnskov Miranda

Inventor： Erik Carl Lehnskov Miranda

IPC: H02P9/04

CPC classification number: H02P9/007 ,  F03D7/0276 ,  F03D7/028 ,  F03D7/044 ,  F05B2220/70646 ,  F05B2270/335 ,  H02P27/05 ,  H02P2101/15 ,  Y02E10/723 ,  Y02E10/725

Abstract: in a method of controlling a variable speed wind turbine, said wind turbine comprising a double-fed asynchronous generator having rotor windings and stator windings and means for controlling the wind turbine speed, the method comprises the following steps:—measuring or calculating, based on measured parameters, the active electrical power (Pr) in the rotor windings, comparing the active electrical power (Pr) in the rotor windings with a preset limit (PrLimit), when the active electrical power (Pr) in the rotor windings exceeds the preset limit (PrLimit), controlling the wind turbine speed to minimize the difference between the active electrical power (Pr) in the rotor windings and a preset reference (PrRef). The rotor power (Pr) is kept at a reduced level, thus avoiding overload of wind turbine generator components.

Abstract translation: 在控制变速风力涡轮机的方法中，所述风力涡轮机包括具有转子绕组和定子绕组的双馈异步发电机和用于控制风力涡轮机转速的装置，该方法包括以下步骤： - 基于 测量参数，转子绕组中的有功电功率（Pr），将转子绕组中的有功功率（Pr）与预设极限（PrLimit）进行比较，当转子绕组中的有功功率（Pr）超过预设值 限制（PrLimit），控制风力涡轮机的速度以最小化转子绕组中的有功功率（Pr）与预设参考值（PrRef）之间的差异。 转子功率（Pr）保持在降低的水平，从而避免风力发电机组件过载。

公开(公告)号：US20050189896A1

公开(公告)日：2005-09-01

申请号：US11042505

申请日：2005-01-26

Applicant: Reijo Virtanen ,  Osmo Pasuri

Inventor： Reijo Virtanen ,  Osmo Pasuri

IPC: H02P9/00 ,  H02P23/30 ,  H02P27/05 ,  H02P7/00

CPC classification number: H02P9/007 ,  H02P23/30 ,  H02P27/05

Abstract: A method for operating a doubly-fed machine by determining its rotational speed (nact), forming a rotational speed reference (nref), measuring network voltage and current, and calculating network active power (Pact) and reactive power (Qact). Thereafter, calculating shaft torque (T) based on active power (Pact) and rotating speed (nact), forming a frequency reference (Fref) for the inverter based on machine rotating speed (nact), rotating speed reference (nref), shaft torque (T), and the known pole pair number and network frequency, forming a reactive power reference (Qref) for the machine. Forming an Ir compensation reference (IRref) for the inverter on the basis of the reactive reference (Qref) and the reactive power (Qact), and controlling the inverter to produce rotor voltage based on frequency reference (Fref) and the IR compensation reference

Abstract translation: 一种用于通过确定其旋转速度（n>动作）来操作双馈机器的方法，形成转速参考（n ref），测量网络电压和电流，以及 计算网络有功功率（P _{动作）和无功功率（Q 动作）。 此后，基于有功功率（P＆lt; SUB＆gt;）和旋转速度（n＆lt;＆lt;＆gt;）计算轴转矩（T），形成频率基准（F SUB） SUB>），基于机器转速（n act ），转速参考（n ref），轴转矩（T）和已知极对数 和网络频率，为机器形成无功功率参考（Q SUB）。 基于无功参考（Q />）和无功功率（Q ）形成用于逆变器的Ir补偿参考（IR >），并且控制逆变器基于频率参考（F />）和IR补偿参考产生转子电压}

公开(公告)号：US20240250632A1

公开(公告)日：2024-07-25

申请号：US18407603

申请日：2024-01-09

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Suguru GANGI

IPC: H02P29/50 ,  H02P27/05

CPC classification number: H02P29/50 ,  H02P27/05

Abstract: A motor control system disclosed herein controls operation of a motor having a stator having one of an armature winding and a field winding and a rotor having the other of the armature winding and the field winding. The motor control system includes a first inverter that supplies an armature current to the armature winding, a second inverter that supplies a field current to the field winding, and a control device that controls the operations of the first inverter and the second inverter. The control device is configured to be capable of executing harmonic superimposition processing for at least partially canceling harmonics appearing in the motor by superimposing harmonic currents on the field current based on the motor operation index indicating the operation of the motor.

公开(公告)号：US20180278194A1

公开(公告)日：2018-09-27

申请号：US15763539

申请日：2015-09-30

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Hiromichi KAWAMURA

IPC: H02P27/08 ,  H02P21/22

CPC classification number: H02P27/085 ,  H02P21/22 ,  H02P27/05 ,  H02P27/06

Abstract: An electric power control method comprising: a current measuring step; a command value calculating step; an operating step; a determining step of determining whether to change an operation period within which the operating step is performed so as to be longer than one cycle of the carrier wave or not; a first reducing step of reducing the switching operation of the switching elements in a first half cycle of the carrier wave starting from a start timing of the operation period after the change during which the carrier wave monotonously changes; a comparing step of changing a slope of the carrier wave in an intermediate period between the first half cycle of the carrier wave and a last half cycle of the carrier wave in the operation period after the change to compare the carrier wave with the duty command value in the magnitude, the comparing step performing the switching operation of the switching elements according to a result of the comparison; and a second reducing step of reducing the switching operation of the switching elements in the last half cycle of the carrier wave.

公开(公告)号：US09979340B2

公开(公告)日：2018-05-22

申请号：US15628404

申请日：2017-06-20

Applicant: DENSO CORPORATION

Inventor： Takashi Suzuki

IPC: H02P23/00 ,  H02P25/00 ,  H02P27/00 ,  H02P21/20 ,  H02P27/04 ,  H02P27/05 ,  H02P6/10

CPC classification number: H02P21/20 ,  H02P5/00 ,  H02P6/10 ,  H02P21/05 ,  H02P27/04 ,  H02P27/05 ,  H02P27/06

Abstract: A control apparatus for driving a three-phase rotary electric machine that generates torque including magnet torque and reluctance torque is provided. AC current supplied to two winding groups of the rotary electric machine have the same amplitude and the mutually different phases defined as 30±60×n[deg]. The control unit calculates d-axis current and q-axis current of 6 (2k+1)th order component superposed on a fundamental wave component on dq coordinate, to reduce a peak of the first order component in the phase current, thereby controlling the three-phase rotary electric machine. The control unit calculates current such that an amplitude of the q-axis current of the 6 (2k+1)th order component is larger than an amplitude of the d-axis current of the 6 (2k+1)th order component.

公开(公告)号：US20130057195A1

公开(公告)日：2013-03-07

申请号：US13597663

申请日：2012-08-29

Applicant: Jung Ik HA ,  Sung Min KIM ,  Seung Ki SUL ,  Yong Su HAN

Inventor： Jung Ik HA ,  Sung Min KIM ,  Seung Ki SUL ,  Yong Su HAN

IPC: H02K11/00 ,  H02P23/00

CPC classification number: H02P25/26 ,  H02P27/05

Abstract: A single external power supply variable speed induction motor and a control method thereof are disclosed. An induction motor includes: a stator in which coils directly connected to a single-phase or 3-phase or more systematic power supply are wound; a rotor that is supported to be rotatable in the stator; a power conversion device that is attached to the rotor and controls a rotor current without connection of a separate external power supply; and a control circuit that is connected to the power conversion device and controls the power conversion device.

Abstract translation: 公开了一种外部电源变速感应电动机及其控制方法。 感应电动机包括：缠绕直接连接到单相或三相或更系统的电源的线圈的定子; 支承在所述定子中可旋转的转子; 功率转换装置，其连接到转子并控制转子电流，而不连接单独的外部电源; 以及连接到电力转换装置并控制电力转换装置的控制电路。

公开(公告)号：US20110050150A1

公开(公告)日：2011-03-03

申请号：US12863342

申请日：2008-01-18

Applicant: Magnus Lindmark Lilliestrale

Inventor： Magnus Lindmark Lilliestrale

IPC: H02P6/08

CPC classification number: H02P23/08 ,  H02P23/0004 ,  H02P27/05

Abstract: The present invention relates to a device for controlling the speed of an electric motor, wherein the said motor is arranged to be connected to a voltage source, wherein the said motor comprises a stator winding and a rotor winding, wherein, in operation, a rotating stator field having a first rotational frequency is generated in the stator winding, wherein the said stator field, in operation, is arranged to induce a first rotor field having a second rotational frequency in the said rotor winding. The device comprises frequency converter means for generating a second rotor voltage having a third rotational frequency from a voltage in the rotor winding being induced from the said stator field, for being supplied to the said rotor winding, wherein the said second rotor voltage being generated by the said frequency converter, in operation, is arranged to generate a second rotating rotor field in the said rotor winding so that, in operation, the rotor rotates with a rotational frequency substantially being the difference between the rotational frequency of the stator field and the rotational frequency of the generated second rotor field.

Abstract translation: 本发明涉及一种用于控制电动机速度的装置，其中所述电动机被布置为连接到电压源，其中所述电动机包括定子绕组和转子绕组，其中，在操作中，旋转 在定子绕组中产生具有第一旋转频率的定子场，其中在操作中所述定子磁场被布置成在所述转子绕组中引起具有第二转动频率的第一转子磁场。 该装置包括变频器装置，用于从所述定子磁场感应出的转子绕组中的电压产生具有第三转数的第二转子电压，以供给所述转子绕组，其中所述第二转子电压由 所述变频器在操作中被布置成在所述转子绕组中产生第二旋转转子磁场，使得在运行中，转子以基本上是定子磁场的旋转频率和旋转频率之间的差的旋转频率旋转 所产生的第二转子磁场的频率。

公开(公告)号：US20080315584A1

公开(公告)日：2008-12-25

申请号：US11820639

申请日：2007-06-20

Applicant: Gregory I. Rozman ,  Matthew L. Wilhide ,  Arthur A. Pershall

Inventor： Gregory I. Rozman ,  Matthew L. Wilhide ,  Arthur A. Pershall

IPC: H02P9/04 ,  F02N11/04

CPC classification number: H02P9/305 ,  H02P1/46 ,  H02P9/48 ,  H02P27/05 ,  H02P2207/076

Abstract: An electromechanical power transfer system that transfers power between a direct current (DC) electrical power system and a prime mover, comprises: a permanent magnet machine (PMM) comprising a permanent magnet (PM) rotor that rotates a drive shaft of the prime mover, a stator with a multiphase alternating current (AC) winding coupled to the AC bus for developing a rotating magnetic field with a magnetic flux path that causes rotation of the PM rotor and a control coil with a winding that has a configuration to generate a magnetic field with flux that varies the reactance of the stator winding upon the application of current through the control coil; a plurality of AC current sensors for sensing the current in each phase of the multi-phase AC bus and generating respective AC bus current signals that represent the current level of each phase; an average current detector that receives the AC bus current signals and generates a respective current load feedback signal; a back electromotive force (emf) detector coupled to the AC bus that detects back emf generated by the stator in response to the application of AC power to the stator and generates a back emf signal representative of the detected level of back emf; a rotor position/speed estimator that receives the back emf signal and generates an estimated rotor position signal that is representative of the position of the rotor, an estimated rotor speed signal that is representative of the speed of the rotor and a closed loop enable signal that indicates a speed for the electrical starting system to switch from an open loop mode of operation to a closed loop mode of operation; a control coil current sensor for generating a control coil current signal in a control coil current feedback loop that is representative of the level of electrical current in the control coil; a first speed switch that switches between an open loop position reference signal that represents a desired position of the rotor in an open loop mode and the estimated rotor position signal that represents the position of the rotor in a closed loop mode to provide a position reference signal; a second speed switch that switches between an open loop current reference signal that represents a desired control coil current level in the open loop mode and a closed loop current reference signal that represents a desired control coil current level in the closed loop mode to provide a control coil current reference signal; an inverter/rectifier system for converting DC power from the DC power system to multiphase alternating current (AC) power on an AC bus; a control coil current regulator system for regulating current through the control coil; wherein the inverter/rectifier system responds to the position reference signal, the current load feedback signal and a current load reference signal to regulate acceleration of the PMM; wherein the control coil current regulator system responds to the control coil current reference signal and the control coil current feedback signal to regulate current in the PMM; and wherein the power transfer system starts in the open loop mode, the rotor position/speed estimator generates the closed loop enable signal that indicates a speed for the electrical starting system to switch from the open loop mode of operation to the closed loop mode of operation at a predetermined rotor speed, and the first and second speed switches respond to the closed loop enable mode to switch from their open loop mode to their closed loop mode.