公开(公告)号：US20130176648A1

公开(公告)日：2013-07-11

申请号：US13514905

申请日：2010-11-08

Applicant: Jan Abraham De Kock ,  Lafras Lamont

Inventor： Jan Abraham De Kock ,  Lafras Lamont

IPC: H02H3/48

CPC classification number: H02H3/48 ,  H02H1/04 ,  H02H7/0805 ,  H02P9/009 ,  H02P9/10 ,  H02P9/302 ,  H02P25/03 ,  H02P29/02

Abstract: A method of protecting a synchronous machine (10) connected to an electricity network (12) against pole-slip comprises the steps of continuously monitoring a power transfer angle (δ) between an electromotive force (EMF) of the machine and a reference voltage Vref. In the event of a fault (24) on the electricity network which may result in pole-slip of the machine (10), deriving a representation of power transfer (P) relating to the machine against the power transfer angle (δ) utilizing data relating to a value of a current or a voltage measured on a terminal (26) of the machine before the fault has occurred and computed data relating to an expected future value of a current or voltage on the terminal (26), after the fault has occurred. The method then utilizes the representation and a stability criterion to predict whether the machine (10) may become unstable and if instability is predicted, causes the machine (10) to be disconnected at 32 or 34 from the electricity network (12).

Abstract translation: 一种保护连接到电网（12）的同步电机（10）抵抗极滑的方法包括以下步骤：连续监测机器的电动势（EMF）与参考电压Vref之间的功率传递角（delta） 。 在电网上存在故障（24）的情况下，可能导致机器（10）的极滑，导致使用数据的与机器相关的功率传递（P）的表示与功率传递角度（delta） 涉及在故障发生之前在机器的终端（26）上测量的电流或电压的值，以及在故障之后具有与终端（26）上的电流或电压的预期未来值有关的计算数据 发生。 然后，该方法利用表示和稳定性标准来预测机器（10）是否可能变得不稳定，并且如果预测不稳定，则使机器（10）在电网（12）处于32或34断开。

公开(公告)号：US20120187923A1

公开(公告)日：2012-07-26

申请号：US13376898

申请日：2010-04-21

Applicant: Christoph Lehmann

Inventor： Christoph Lehmann

IPC: H02P9/08

CPC classification number: H02P9/08 ,  F01D25/36 ,  F02C7/36 ,  H02P9/302

Abstract: An assembly including an electric generator and a steam turbine and an excitation device is provided. The excitation device is designed such that during nominal operation the auxiliary excitation machine is designed as permanently excited synchronous machine and the auxiliary excitation machine is designed as a synchronous motor or turning gear motor in a turning gear operation.

Abstract translation: 提供了一种包括发电机和蒸汽轮机以及励磁装置的组件。 励磁装置的设计使得在额定运行期间，辅助励磁机被设计为永磁同步电机，辅助励磁机被设计为同步电动机或转向齿轮电动机。

公开(公告)号：US08106524B2

公开(公告)日：2012-01-31

申请号：US12418059

申请日：2009-04-03

Applicant: Kenji Kamimura ,  Motohiro Shimizu

Inventor： Kenji Kamimura ,  Motohiro Shimizu

IPC: H02P9/04

CPC classification number: H02P9/04 ,  H02P9/302 ,  H02P9/48

Abstract: In a capacitor-compensation-type generator having a rotor wound with a field winding, a stator wound with an output winding adapted to cross flux generated by the field winding to output AC power, and an internal combustion engine that drives the rotor to rotate relative to the stator, there are equipped with an actuator that changes the engine speed and an actuator controller that controls operation of the actuator in accordance with a constant voltage operation mode in which the engine speed is controlled to a desired speed such that a detected output voltage becomes a desired voltage, or a constant frequency operation mode in which the detected engine speed is controlled to a predetermined speed such that frequency of AC power outputted from the output winding becomes a desired frequency, thereby enabling to output AC power at constant voltage or frequency.

Abstract translation: 在具有缠绕有励磁绕组的转子的电容器补偿型发电机中，定子缠绕有适于交变磁场绕组产生的输出绕组的输出绕组以输出交流电力;以及内燃机，其驱动转子相对旋转 对于定子，配备有改变发动机转速的致动器以及致动器控制器，该致动器控制器根据其中将发动机转速控制到期望速度的恒定电压操作模式来控制致动器的操作，使得检测到的输出电压 或者将检测到的发动机转速控制到预定速度的恒定频率运行模式，使得从输出绕组输出的交流电力的频率成为期望频率，从而能够输出恒定电压或频率的交流电力 。

公开(公告)号：US20110050184A1

公开(公告)日：2011-03-03

申请号：US12549466

申请日：2009-08-28

Applicant: Waleed M. Said ,  Si Jian Fang

Inventor： Waleed M. Said ,  Si Jian Fang

IPC: H02P9/02

CPC classification number: H02P9/302 ,  H02P9/009 ,  H02P21/00

Abstract: An active rectifier controller decouples measurements of the phase and speed of a variable frequency synchronous generator from measurements of the AC output voltage. The active rectifier controller receives position information representative of the rotor position of the VFSG independent of a load connected to the VFSG that is used to determine the phase position and speed of the VFSG. Based on measurements of the generator speed and phase, the active rectifier controller controls the active rectifier to draw AC currents in-phase with the back-electromotive force (BEMF) voltage of the VFSG.

Abstract translation: 有源整流器控制器将可变频率同步发电机的相位和速度的测量值与交流输出电压的测量值分离。 主动整流器控制器接收代表VFSG的转子位置的位置信息，该位置信息与用于确定VFSG的相位位置和速度的VFSG连接的负载无关。 基于发电机速度和相位的测量，有源整流器控制器控制有源整流器与VFSG的反电动势（BEMF）电压同相吸取AC电流。

公开(公告)号：US20110050183A1

公开(公告)日：2011-03-03

申请号：US12847298

申请日：2010-07-30

Applicant: Constantin GINET ,  Luis DIEZ-MAROTO

Inventor： Constantin GINET ,  Luis DIEZ-MAROTO

IPC: H02P9/10

CPC classification number: H02P9/10 ,  H02P9/102 ,  H02P9/105 ,  H02P9/107 ,  H02P9/30 ,  H02P9/302

Abstract: A static exciter of a field winding includes a rectifier connected to an electric grid and to the field winding; a unidirectional electronic switch connected in series with the rectifier; a capacitor bank; and a further switch disposed between the unidirectional electronic switch and the capacitor bank. Exciter also includes a control unit connected to the further switch and configured to close the further switch when a grid voltage drops below a first prefixed voltage value so as to connect the capacitor bank to the field winding and configured to open the further switch when the grid voltage exceeds a second prefixed voltage value so as to disconnect the capacitor bank from the field winding and so as to supply energy to the field winding from the capacitor bank for a time period.

Abstract translation: 励磁绕组的静态励磁器包括连接到电网和励磁绕组的整流器; 与整流器串联连接的单向电子开关; 电容器组; 以及设置在单向电子开关和电容器组之间的另一开关。 励磁器还包括连接到另外的开关的控制单元，并且被配置为当电网电压低于第一预定电压值时闭合另外的开关，以便将电容器组连接到励磁绕组并且被配置成当电网时打开另外的开关 电压超过第二预定电压值，以便将电容器组与励磁绕组断开，从而从电容器组提供能量到场绕组一段时间。

公开(公告)号：US20110018504A1

公开(公告)日：2011-01-27

申请号：US12460659

申请日：2009-07-23

Applicant: Ciaran Patterson

Inventor： Ciaran Patterson

IPC: H02P9/48 ,  G06F19/00 ,  H02H7/06

CPC classification number: H02P9/48 ,  H02P9/302 ,  H02P9/305 ,  Y10T307/944

Abstract: A vehicle electrical system comprises a generator and a control device coupled with the generator and operable to protect the generator from catastrophic failure while providing the electrical load in the electrical system with sufficient electrical power. The control device determines a loss of symmetry between two alternating phase signals generated by a first and second phase windings of a single or multiple stator generator. In particular, the control device determines a first and second average values of two of the two or more alternating phase signals and either limits or ceases the total electrical output current of the generator, via a generator output power controller, when the first average value differs from the second average value by a predetermined value. The control device may alternatively be configured to generate an error signal without varying the generator's total electrical output current even in the event of a malfunction.

Abstract translation: 车辆电气系统包括发电机和与发电机耦合的控制装置，并且可操作以保护发电机免受灾难性故障，同时在电气系统中提供足够的电力。 控制装置确定由单个或多个定子发生器的第一和第二相绕组产生的两个交变相位信号之间的对称损失。 特别地，控制装置确定两个或多个交变相位信号中的两个的第一和第二平均值，并且当第一平均值不同时，通过发电机输出功率控制器限制或停止发电机的总电输出电流 从第二平均值预定值。 可替代地，该控制装置也可以配置成即使在发生故障的情况下也不会改变发电机的总电力输出电流而产生误差信号。

公开(公告)号：US20100308582A1

公开(公告)日：2010-12-09

申请号：US12479211

申请日：2009-06-05

Applicant: Gregory I. Rozman ,  Matthew L. Wilhide

Inventor： Gregory I. Rozman ,  Matthew L. Wilhide

IPC: F02N11/04

CPC classification number: H02P9/302 ,  H02M1/36 ,  H02M3/156 ,  H02P9/102 ,  H02P25/024

Abstract: A pre-charge circuit limits in-rush currents on a direct current (DC) link that includes a first DC link bus and a second DC link bus. The pre-charge circuit includes a switching device connected in series with the first DC link bus. The switching device has an ON state in which power flow is enabled on the DC link and an OFF state in which power is disabled on the DC link. A controller selectively modulates the state of the switching device to limit in-rush currents on the DC link.

Abstract translation: 预充电电路限制包括第一DC链路总线和第二DC链路总线的直流（DC）链路上的浪涌电流。 预充电电路包括与第一DC链路总线串联连接的开关装置。 开关装置具有在DC链路上使能电力流的ON状态和在DC链路上禁用电力的OFF状态。 控制器选择性地调制开关装置的状态以限制直流链路上的浪涌电流。

公开(公告)号：US20100109324A1

公开(公告)日：2010-05-06

申请号：US12567774

申请日：2009-09-27

Applicant: Rahamim Ben-David ,  Dror Nadam

Inventor： Rahamim Ben-David ,  Dror Nadam

IPC: H02K7/20 ,  H02P9/48

CPC classification number: H02P9/305 ,  F03D7/0272 ,  F05B2270/327 ,  H02P9/14 ,  H02P9/30 ,  H02P9/302 ,  H02P9/48 ,  H02P2101/15 ,  Y02E10/723

Abstract: A system and device for providing AC signal. The system includes: an AC generator that outputs an AC output signal and includes an AC rotor that communicates with a shaft that is rotated at a rotation speed; a speed sensor for sensing the rotation speed; and a controller for controlling a magnetic field of the AC generator in response to the rotation speed; wherein the controller comprises a Field Exciter for providing a current to the AC generator so as to control the magnetic field of the AC generator.

Abstract translation: 一种用于提供交流信号的系统和装置。 该系统包括：交流发电机，其输出AC输出信号，并且包括与以旋转速度旋转的轴连通的AC转子; 用于感测旋转速度的速度传感器; 以及控制器，用于响应于所述转速来控制所述AC发电机的磁场; 其中所述控制器包括用于向所述AC发电机提供电流以便控制所述AC发电机的磁场的励磁励磁器。

公开(公告)号：US20080303280A1

公开(公告)日：2008-12-11

申请号：US11758189

申请日：2007-06-05

Applicant: MINGZHOU XU ,  CRISTIAN E. ANGHEL ,  WAYNE T. PEARSON

Inventor： MINGZHOU XU ,  CRISTIAN E. ANGHEL ,  WAYNE T. PEARSON

IPC: F02N11/04 ,  B64D31/00 ,  H02P9/00

CPC classification number: H02P9/302 ,  H02P2101/30

Abstract: A starter-generator system may be used to supply sufficient starting torque to start an aircraft main engine. The main starter-generator stator winding may be connected to a constant frequency (CF) power source to create a rotating field in the main starter-generator air gap. This rotating field, in turn, may induce current on the main rotor winding, which may be a closed circuit formed by main rotor field winding and exciter armature winding. The interaction between the main rotor current and the air gap flux may give rise to the starting torque to start the main engine. Adjusting the voltage supplied to the exciter stator field winding can modify the induced voltage and current on the rotor circuit to control the rotor current and starting torque. The starter-generator system may also be used to start an aircraft main engine by directly connecting the main stator winding to a power source without powering the exciter stator.

Abstract translation: 起动发电机系统可用于提供足够的起动转矩来启动飞行器主机。 主起动器 - 发电机定子绕组可以连接到恒定频率（CF）电源，以在主起动器 - 发电机气隙中产生旋转场。 这个旋转场又可能在主转子绕组上感应出电流，主转子绕组可能是由主转子励磁绕组和励磁机电枢绕组形成的闭合电路。 主转子电流和气隙磁通之间的相互作用可能会引起启动主机的起动转矩。 调整提供给励磁机定子励磁绕组的电压可以改变转子电路上的感应电压和电流，以控制转子电流和起动转矩。 起动发电机系统也可用于通过将主定子绕组直接连接到电源而不为励磁机定子供电而启动飞行器主机。

公开(公告)号：US07355367B2

公开(公告)日：2008-04-08

申请号：US11833125

申请日：2007-08-02

Applicant: Bulent Sarlioglu ,  Colin E. Huggett

Inventor： Bulent Sarlioglu ,  Colin E. Huggett

IPC: H20P9/46

CPC classification number: H02P9/40 ,  F01D15/10 ,  F05D2220/50 ,  F05D2220/7642 ,  H02P9/302 ,  H02P21/12 ,  H02P25/08 ,  H02P2101/30 ,  Y02T50/671

Abstract: A system and method is provided for generating AC power using a synchronous reluctance machine (12) or a salient-pole synchronous machine (102) and a power converter (110). The present invention can be used to achieve power production for a synchronous reluctance machine (12), or can be used to achieve AC power from a traditional salient-pole synchronous machine/starter (102) without dependence upon a rotor current which is subject to failure. In the power generation system, the control system and method can include a power converter (110), controlled by a voltage command and at least one of a measured AC bus (125) current and voltage, and a DC link (120) voltage, for use with a synchronous reluctance machine (102) and a prime mover (116), such that movement of the rotor of the synchronous reluctance machine (102) can be used to produce at least partial AC power generation on the AC bus (125).

Abstract translation: 提供了一种使用同步磁阻电机（12）或凸极同步电机（102）和功率转换器（110）产生交流电的系统和方法。 本发明可以用于实现同步磁阻电机（12）的功率产生，或者可以用于实现来自传统的凸极同步电机/起动器（102）的交流电源，而不依赖于受到转子电流的转子电流 失败。 在发电系统中，控制系统和方法可以包括由电压指令和测量的AC总线（125）电流和电压以及DC链路（120）电压中的至少一个控制的功率转换器（110） 与同步磁阻电机（102）和原动机（116）一起使用，使得同步磁阻电机（102）的转子的运动可用于在AC总线（125）上产生至少部分AC电力产生， 。