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1. 发明授权

US11056987B2 Motor system 有权
公开(公告)号：US11056987B2
公开(公告)日：2021-07-06
申请号：US16360559
申请日：2019-03-21
申请人： Toyota Jidosha Kabushiki Kaisha , Denso Corporation
发明人： Kiyotaka Matsubara , Makoto Nakamura , Daigo Nobe , Ryuji Omata
IPC分类号： H02P6/08 , H02P21/22 , H02P6/12 , H02P11/00 , H02P27/06 , H02M7/44 , H02P11/06 , B60L15/02 , H02P6/04
摘要： A motor system provided with one motor and two inverters includes a first inverter control unit which changes a frequency of a first carrier wave (first carrier frequency) used for producing a switching signal fora first inverter according to an operating point of the motor; and a second inverter control unit which changes a frequency of a second carrier wave (second carrier frequency) used for producing a switching signal for a second inverter according to an operating point of the motor. The first carrier frequency has a changing characteristic depending on the first inverter control unit and the second carrier frequency has a changing characteristic depending on the second inverter control unit, and the changing characteristics are different from each other to make the first carrier frequency and the second carrier frequency differ from each other at an identical operating point.

2. 发明授权

US11050376B2 Control device for permanent magnet type rotating electrical machine 有权
公开(公告)号：US11050376B2
公开(公告)日：2021-06-29
申请号：US16609489
申请日：2017-06-06
申请人： Mitsubishi Electric Corporation
发明人： Yoshimasa Nishijima , Keiichi Enoki , Masutaka Watanabe , Yasukazu Murata , Shingo Harada , Kazuhiko Otsuka
IPC分类号： H02P1/18 , H02P21/14 , H02P11/06 , H02P21/06
摘要： In order to reduce deviation of correction amount when calculating a magnetic pole position correction amount of a permanent magnet type rotating electrical machine, and perform magnetic pole position correction with high accuracy, in state where the permanent magnet type rotating electrical machine is rotated, a d-axis current command value and a q-axis current command value in dg vector control are kept substantially zero, an actual d-axis voltage and an actual q-axis voltage are calculated from a midpoint potential detected from a midpoint potential detection unit, a magnetic pole position correction amount is calculated based on a predetermined arithmetic expression from the actual d-axis voltage and the actual q-axis voltage, and magnetic pole position origin correction is performed based on the magnetic pole position correction amount.

3. 发明授权

US07535120B2 Power system with low voltage ride-through capability 失效
标题翻译：具有低电压穿越能力的电力系统
公开(公告)号：US07535120B2
公开(公告)日：2009-05-19
申请号：US11729399
申请日：2007-03-27
申请人： William Erdman , Kevin L. Cousineau , Amir S. Mikhail
发明人： William Erdman , Kevin L. Cousineau , Amir S. Mikhail
IPC分类号： H02J3/38 , H02P11/06
CPC分类号： F03D7/0284 , F03D7/0224 , F03D7/0272 , F03D7/048 , F03D9/25 , F03D9/255 , F03D9/257 , F05B2210/16 , F05B2270/1032 , F05B2270/337 , H02J3/382 , H02J3/386 , H02J3/387 , H02J2003/001 , H02P9/02 , H02P9/04 , H02P9/10 , H02P9/102 , H02P9/105 , H02P9/107 , H02P2101/10 , H02P2101/15 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02E20/16 , Y10T307/522 , Y10T307/62 , Y10T307/625 , Y10T307/631 , Y10T307/636 , Y10T307/718
摘要： A wind powered turbine with low voltage ride-through capability. An inverter is connected to the output of a turbine generator. The generator output is conditioned by the inverter resulting in an output voltage and current at a frequency and phase angle appropriate for transmission to a three-phase utility grid. A frequency and phase angle sensor is connected to the utility grid operative during a fault on the grid. A control system is connected to the sensor and to the inverter. The control system output is a current command signal enabling the inverter to put out a current waveform, which is of the same phase and frequency as detected by the sensor. The control system synthesizes current waveform templates for all three-phases based on a sensed voltage on one phase and transmits currents to all three-phases of the electrical system based on the synthesized current waveforms.
摘要翻译：具有低电压穿越能力的风力涡轮机。逆变器连接到涡轮发电机的输出端。发电机输出由逆变器调节，导致输出电压和电流在适于传输到三相公用电网的频率和相位角。在电网故障期间，频率和相位角传感器连接到公用电网运行。控制系统连接到传感器和逆变器。控制系统输出是电流指令信号，使得逆变器能够输出与传感器检测到的相位和频率相同的电流波形。控制系统根据一相感应电压对所有三相电流波形模板进行合成，并根据合成电流波形将电流传输到电气系统的所有三相。

4. 发明授权

US4378587A Frequency converter apparatus 失效
标题翻译：变频器设备
公开(公告)号：US4378587A
公开(公告)日：1983-03-29
申请号：US202757
申请日：1980-10-31
申请人： James E. McClain , Howard L. Scott
发明人： James E. McClain , Howard L. Scott
IPC分类号： H02K47/20 , H02P11/06 , H02M5/32
CPC分类号： H02P11/06 , H02K47/20
摘要： Disclosed is a frequency converter system for altering the frequency of a-c power supplied from a distribution network to a load, the system including a pair of mechanically coupled rotating alternating current machines, the alteration of the rate and direction of rotation of the prime mover altering the frequency of the power. A variable impedance network comprising saturable core reactors and connected in the rotor circuit of the prime mover is utilized to effect the change of rate and direction of prime mover rotation.
摘要翻译：公开了一种变频器系统，用于改变从分配网络提供给负载的交流电力的频率，该系统包括一对机械耦合的旋转交流电机，改变原动机的转速和转向方向，功率的频率。包括饱和核心反应器并连接在原动机的转子回路中的可变阻抗网络用于实现原动机旋转速率和方向的变化。

5. 发明授权

US3737760A Voltage control apparatus for an alternating current generator 失效
标题翻译：用于替代电流发生器的电压控制装置
公开(公告)号：US3737760A
公开(公告)日：1973-06-05
申请号：US3737760D
申请日：1971-10-12
申请人： HITACHI LTD
发明人： KIWAKI H , SATO H , KUWABARA T
IPC分类号： H02P9/30 , H02P9/34 , H02P9/44 , H02P11/06
CPC分类号： H02P9/44 , H02P9/34
摘要： A voltage control apparatus for an alternating current generator comprising an alternating current generator which is selfexcited, an electric motor for driving the generator, a control rectifier arrangement for exciting the field winding of the generator by rectifying the output voltage of the generator, a phase shifter for controlling the control rectifier, a saturable reactor excited by the output of the generator, a rectifier for rectifying the current flowing through the reactor to supply a control input for the phase shifter, and a resistor connected across the alternating current terminals of the rectifier to bypass the current of the reactor.
摘要翻译：一种用于交流发电机的电压控制装置，包括自激式交流发电机，用于驱动发电机的电动机，用于通过整流发电机的输出电压来激励发电机的励磁绕组的控制整流器装置，用于控制控制整流器的移相器，由发生器的输出激励的可饱和电抗器，用于整流流过电抗器的电流以提供用于移相器的控制输入的整流器，以及连接在所述交流电源的交流端子整流器绕过电抗器的电流。

6. 发明授权

US11594995B2 System for controlling a voltage converter 有权
公开(公告)号：US11594995B2
公开(公告)日：2023-02-28
申请号：US17414911
申请日：2019-12-20
申请人： Valeo Equipements Electriques Moteur
发明人： Mathieu Bertrand , Yann Lecocq , Hicham Lahbil
IPC分类号： H02H7/08 , H02P29/024 , B60L50/51 , B60L3/00 , G01R19/165 , H02H7/122 , H02P3/18 , H02P11/06 , H02P27/06
摘要： The invention relates to a system 1 for controlling a voltage converter comprising a plurality of high-side switches forming a high group and a plurality of low-side switches forming a low group, the control system 1 comprising: a module 10 for measuring a voltage V of the DC voltage source B, a module 11 for comparing the measured voltage V with a first safety threshold OV1, a control module 12 for controlling a first group of switches so as to close chosen from the high group or the low group, if the comparison module 11 indicates that the measured voltage V is higher than the first safety threshold OV1.

7. 发明授权

US10910974B2 Control device for AC motor 有权
公开(公告)号：US10910974B2
公开(公告)日：2021-02-02
申请号：US16520659
申请日：2019-07-24
申请人： DENSO CORPORATION
发明人： Hidekazu Takahashi , Koji Irie
IPC分类号： H02P11/06 , H02P29/40 , H02P4/00 , H02P21/34
摘要： A feedback control switching unit of an inverter control unit selects, based on a magnitude relationship between a predetermined switching determination amount and at least one switching threshold, at least one of feedback control units to thereby execute switching among feedback control modes, such as a current feedback control mode and a torque feedback control mode, of the respective feedback control units for driving of the AC motor. A switching command generating unit generates a switching command for an inverter based on a manipulated variable calculated by the selected feedback control unit. When a torque response request determining unit determines that a required torque responsiveness is high, the feedback control switching unit reduces the number of executions of switching among the feedback control modes.

8. 发明授权

US10622813B2 Load alignment assistance during startup of synchronous grid 有权
公开(公告)号：US10622813B2
公开(公告)日：2020-04-14
申请号：US15366555
申请日：2016-12-01
申请人： Rolls-Royce North American Technologies Inc.
发明人： Mark Jon Blackwelder , Paul M. Rancuret
IPC分类号： H02J3/40 , H02P1/46 , H02P11/06 , H02P9/00
CPC分类号： H02J3/40 , H02P1/46 , H02P9/00 , H02P11/06
摘要： Methods and systems for load alignment assistance are provided. An alignment current may be provided with a partial power converter through an n-phase supply line to a synchronous alternating current (AC) motor during a startup of a synchronous AC grid. The synchronous AC motor may receive polyphase AC power through the n-phase supply line from the synchronous AC grid during the startup. The partial power converter may be powered by a power source isolated from the synchronous AC grid. The alignment current may be controlled such that the alignment current causes a rotor of the synchronous AC motor to align with a rotor of a generator that powers the synchronous AC grid.

9. 发明申请

US20120206112A1 High voltage oscilloscope 审中-公开
标题翻译：高压示波器
公开(公告)号：US20120206112A1
公开(公告)日：2012-08-16
申请号：US12931873
申请日：2011-02-14
申请人： John Kissane
发明人： John Kissane
IPC分类号： H02P11/06
CPC分类号： H02P11/06
摘要： The invention described above is a method of producing high voltage alternating current electricity for use in the electrolysis of liquid. The advantages of using high voltage alternating current over just direct current are that there are resonant frequencies for functional groups in any chemical. By using high voltage alternating current instead of just direct current new pathways might be found to produce chemicals. Possibly even the production of synthetic fuels. My invention is a tool for use in this experimentation. The high voltage oscilloscope provides for means of controlling both frequency and voltage at a specific test site.
摘要翻译：上述发明是生产用于电解液体的高压交流电的方法。在直流电流下使用高压交流电的优点在于，在任何化学品中存在功能组的共振频率。通过使用高压交流电而不是直接的新途径可能会发现生产化学品。甚至可能生产合成燃料。我的发明是在这个实验中使用的工具。高电压示波器提供了在特定测试地点控制频率和电压的方法。

10. 发明授权

US5952816A Compensation for power transfer systems using variable rotary transformer 失效
标题翻译：使用可变旋转变压器的电力传输系统的补偿
公开(公告)号：US5952816A
公开(公告)日：1999-09-14
申请号：US967445
申请日：1997-11-11
申请人： Einar Vaughn Larsen
发明人： Einar Vaughn Larsen
IPC分类号： H02J3/00 , H01F38/18 , H02J3/06 , H02J3/18 , H02J3/34 , H02J3/36 , H02K47/22 , H02P9/48 , H02P11/06 , H02P13/00 , G05F5/04
CPC分类号： H01F38/18 , H02J3/06 , H02J3/1828 , H02J3/34 , H02K47/22 , H02P9/48 , H02P2101/10 , Y02E40/30
摘要： In an interconnection system (100) for transferring power between a first grid (22) operating at a first electrical frequency and voltage and a second grid (24) operating at a second electrical frequency and voltage, compensation circuits including a shunt compensation circuit (40) and a series compensation circuit (50) are provided for use in conjunction with a rotary transformer (102). The shunt compensation circuit (40) regulates voltage by adjusting reactive current injected in shunt, and is preferably connected between the first grid (22) and the rotary transformer (102). The series compensation circuit (50), which regulates e.g., reactive power flow through the rotary transformer (102), is preferably connected to a transformer (30) which interfaces the first grid (22) to the rotary transformer (102).
摘要翻译：在用于在以第一电频和电压工作的第一电网（22）和以第二电频和电压工作的第二电网（24）之间传输电力的互连系统（100）中，包括分流补偿电路（40））和串联补偿电路（50），用于与旋转变压器（102）结合使用。分路补偿电路（40）通过调节分流中注入的无功电流来调节电压，并且优选地连接在第一栅极（22）和旋转变压器（102）之间。调节例如通过旋转变压器（102）的无功功率流的串联补偿电路（50）优选地连接到将第一栅极（22）与旋转变压器（102）接合的变压器（30）。

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