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1. 发明申请

US20180191152A1 Rectifier and Alternator Using the Same 审中-公开
公开(公告)号：US20180191152A1
公开(公告)日：2018-07-05
申请号：US15819315
申请日：2017-11-21
申请人： Hitachi Power Semiconductor Device, Ltd.
发明人： Tetsuya Ishimaru , Mutsuhiro Mori , Shinichi Kurita
IPC分类号： H02H7/06 , H02M7/217 , H02M1/08 , H02K11/04
CPC分类号： H02H7/067 , H02J7/14 , H02K11/046 , H02M1/08 , H02M3/33592 , H02M7/217 , H02M7/219 , H02M2007/2195 , Y02B70/1408 , Y02B70/1475
摘要： A rectifier includes a rectification MOSFET that performs rectification, a comparator formed by connecting a drain of the rectification MOSFET to a non-inverting input terminal and a source to an inverting input terminal, and a control circuit that performs an on/off control of the rectification MOSFET using an output of the comparator. The control circuit includes a shut-off MOSFET that disconnects a drain of the rectification MOSFET and a non-inverting input terminal of the comparator from each other, and a shut-off circuit that turns off the shut-off MOSFET to electrically disconnect the drain of the rectification MOSFET and the non-inverting input terminal of the comparator from each other when the drain voltage of the rectification MOSFET is equal to or higher than a predetermined first voltage.

2. 发明申请

US20170244251A1 REACTIVE POWER SUPPORT FROM WIND TURBINE FACILITIES 审中-公开
公开(公告)号：US20170244251A1
公开(公告)日：2017-08-24
申请号：US15517881
申请日：2015-09-22
申请人： VESTAS WIND SYSTEMS A/S
发明人： John Godsk NIELSEN , Søren ANDERSEN , Duy Duc DOAN , Lars HELLE
IPC分类号： H02J3/18 , F03D7/02 , H02H7/06 , H02P9/04 , H02J3/28 , H02J3/16 , H02J3/38
CPC分类号： H02J3/1885 , F03D7/0272 , F03D7/0284 , F05B2270/1033 , H02H7/067 , H02J3/16 , H02J3/18 , H02J3/28 , H02J3/386 , H02P9/04 , Y02E10/723 , Y02E10/763 , Y02E40/34
摘要： The present invention relates to a method for operating a wind power facility in order to provide reactive power support to a power grid, the method comprising the step of increasing an amount of reactive power injected into the power grid, decreasing an amount of active power injected into the power grid by a certain amount, and dissipating and/or storing essentially said certain amount of active power in power dissipation and/or power storage means. The wind power facility may comprise a wind turbine or a wind power plant.

3. 发明授权

US09520819B2 System and method for controlling a power generation system based on a detected islanding event 有权
标题翻译：基于检测到的孤岛事件来控制发电系统的系统和方法
公开(公告)号：US09520819B2
公开(公告)日：2016-12-13
申请号：US14193786
申请日：2014-02-28
申请人： General Electric Company
发明人： Sidney Allen Barker
IPC分类号： F03D9/00 , H02P9/10 , F03D7/00 , H02H7/06 , H02M5/42 , H02P9/00 , H02P9/04 , H02J3/38
CPC分类号： H02P9/10 , F03D7/00 , F03D9/255 , H02H7/067 , H02J3/386 , H02J2003/388 , H02M5/42 , H02P9/007 , H02P9/04 , Y02E10/725 , Y02E10/763
摘要： In one aspect, a method for controlling the operation of a power generation system configured to supply power to an electrical grid may generally include detecting an occurrence of an islanding event associated with the power generation system and adjusting a regulator gain applied within a regulator of the power generation system to an islanding gain value in response to the detection of the islanding event, wherein the islanding gain value exceeds a maximum gain value defined for the regulator in the event of an occurrence of any ride-through transient event. In addition, the method may include controlling a power converter of the power generation system based on a control signal generated by the regulator as the power generation system is being isolated from the electrical grid and shutting down the power generation system upon isolation of the power generation system from the electrical grid.
摘要翻译：一方面，一种用于控制被配置为向电网供电的发电系统的操作的方法通常可以包括检测与发电系统相关联的孤岛事件的发生，并且调整施加在发电系统的调节器内的调节器增益响应于孤岛事件的检测，发电系统到孤岛增益值，其中孤岛增益值超过在发生任何穿越瞬态事件的情况下为调节器定义的最大增益值。此外，该方法可以包括当发电系统与电网隔离时，基于由调节器产生的控制信号来控制发电系统的功率转换器，并且在隔离发电时关闭发电系统系统从电网。

4. 发明申请

US20160294181A1 OVERVOLTAGE PROTECTION FOR A MOTOR VEHICLE ELECTRICAL SYSTEM IN THE EVENT OF LOAD SHEDDING 审中-公开
标题翻译：电动车辆电动系统在负载事故中的过电压保护
公开(公告)号：US20160294181A1
公开(公告)日：2016-10-06
申请号：US15037279
申请日：2014-11-10
申请人： ROBERT BOSCH GMBH
发明人： Christopher OTTE , Paul MEHRINGER
IPC分类号： H02H7/06 , H02P9/00 , H02M7/219
CPC分类号： H02H7/067 , H02M1/32 , H02M7/219 , H02M7/30 , H02P3/22 , H02P9/006 , H02P9/48 , H03K17/0822
摘要： A method for operating a motor vehicle electrical system which includes an electric machine, and an active bridge rectifier connected to the electric machine via phase connections. After the bridge rectifier has been operated at least once in a short circuit operating mode, a determination is made, based on at least one feature of a signal which characterizes a voltage that drops between the direct voltage terminals of the bridge rectifier, whether the signal has exceeded the upper threshold value due to a cable break at at least one of the direct voltage terminals. If so, the bridge rectifier is subsequently operated in the short circuit operating mode for an extended period of time, and/or a control signal having a second switching time greater than that in the first method phase is used for controlling the active switching elements.
摘要翻译：一种用于操作包括电机的机动车辆电气系统的方法，以及通过相位连接连接到电机的有源桥式整流器。在桥式整流器在短路工作模式下至少一次操作之后，基于表征在桥式整流器的直流电压端子之间的电压的信号的至少一个特征，确定信号是否由于至少一个直流电压端子处的电缆断裂而超过了上限阈值。如果是这样，桥式整流器随后在短时工作模式下延长一段时间，并且/或具有大于第一方法相位的第二开关时间的控制信号用于控制有源开关元件。

5. 发明申请

US20160285252A1 SYSTEM AND METHOD FOR CONTROLLING WIND POWER GENERATION SYSTEMS 有权
标题翻译：用于控制风力发电系统的系统和方法
公开(公告)号：US20160285252A1
公开(公告)日：2016-09-29
申请号：US15033724
申请日：2013-10-31
申请人： GENERAL ELECTRIC COMPANY
发明人： Rajni Kant BURRA , Victor Robert ABATE , David Cole MAGNUSON , Keith LONGTIN
IPC分类号： H02H7/06 , H02J3/38 , F03D9/00 , H02P9/00
CPC分类号： H02H7/067 , F03D9/255 , H02J3/38 , H02J3/386 , H02P9/006 , H02P9/007 , H02P9/107 , Y02E10/726 , Y02E10/763
摘要： An electrical system for controlling a wind turbine is provided. The electrical system includes a first resistive element, a storage element and a controller. The first resistive element and the storage element are coupled to a DC link of the wind turbine. The controller is used for switching between the first resistive element and the storage element in response to a grid side fault condition to minimize mechanical loads induced by the grid side fault condition.
摘要翻译：提供了一种用于控制风力涡轮机的电气系统。电气系统包括第一电阻元件，存储元件和控制器。第一电阻元件和存储元件耦合到风力涡轮机的DC链路。控制器用于响应于电网侧故障条件在第一电阻元件和存储元件之间切换以最小化由电网侧故障条件引起的机械负载。

6. 发明授权

US09350281B2 Circuit and method for frequency synthesis for signal detection in automatic voltage regulation for synchronous generators 有权
标题翻译：用于同步发电机自动调压信号检测的频率合成电路及方法
公开(公告)号：US09350281B2
公开(公告)日：2016-05-24
申请号：US14274456
申请日：2014-05-09
申请人： Alonso Rodiguez
发明人： Alonso Rodiguez
IPC分类号： H02P9/14 , H02P9/02
CPC分类号： H02P9/14 , H02H7/067 , H02P9/02 , H03K7/08 , H03L7/08
摘要： Automatic voltage regulation is shown involving full wave rectifying a power signal and generating a reference corresponding to an operating voltage level, line sampling the power signal and comparing it to the reference to generate a line sync signal synchronized to the power signal. Producing 90° out of phase signals synchronized to the line sync signal with a PLL locked onto the line sync signal that outputs a phase error signal. Generating a quadrature signal from the phase signals. Sampling the peaks of the rectified power signal using the quadrature signal to produce a control signal. Subtracting the error signal and damping signal from the reference to produce a duty cycle modulation signal. The duty cycle modulation signal controls a duty cycle of a field voltage control signal that oscillates at a predetermined frequency. The field voltage control signal is low-pass filtered to produce the damping signal.
摘要翻译：示出了自动电压调节，其涉及全波整流功率信号并产生对应于工作电压电平的参考线，对功率信号进行线路采样并将其与参考值进行比较以产生与功率信号同步的线路同步信号。产生与行同步信号同步的90°异相信号，PLL锁定在输出相位误差信号的线路同步信号上。从相位信号产生正交信号。使用正交信号对整流功率信号的峰值进行采样，以产生控制信号。从参考中减去误差信号和阻尼信号以产生占空比调制信号。占空比调制信号控制以预定频率振荡的场电压控制信号的占空比。场电压控制信号被低通滤波以产生阻尼信号。

7. 发明授权

US09312683B2 Vehicle-mounted electric rotating machine 有权
标题翻译：车载电动旋转机
公开(公告)号：US09312683B2
公开(公告)日：2016-04-12
申请号：US14514583
申请日：2014-10-15
申请人： DENSO CORPORATION
发明人： Hideaki Nakayama , Harumi Horihata
IPC分类号： H02P11/00 , H02H7/06 , H02P9/00 , H02J11/00 , H02P9/10 , H02P9/48 , H02K16/02
CPC分类号： H02H7/067 , B60L11/1803 , B60L11/1868 , B60L15/025 , B60L2240/421 , B60L2240/423 , B60L2240/429 , B60L2240/529 , H02J7/0054 , H02J7/1423 , H02J7/1461 , H02J7/163 , H02J11/00 , H02J2007/143 , H02M1/32 , H02P9/10 , H02P9/48 , H02P2101/45 , Y02T10/643 , Y02T10/7005 , Y02T10/7066
摘要： A vehicle-mounted electric rotating machine includes a field winding wound on a rotor for magnetizing a field pole of the rotor, a stator winding for generating an AC voltage in accordance with a rotating magnetic field generated by the field pole, a power converter for converting the AC voltage to a DC voltage and outputting the DC voltage through a first power supply line connected to an output terminal thereof, and a load dump handling section for performing a load dump protection operation when a voltage of the output terminal of the power converter exceeds a threshold voltage. The load dump handling section is supplied with operating power through a second power supply line provided separately from the first power supply line.
摘要翻译：一种车载旋转电动机，其特征在于，包括绕在转子上的磁场绕组，用于磁化转子的磁场，根据由磁场产生的旋转磁场产生交流电压的定子绕组，转换器 AC电压到DC电压，并通过连接到其输出端的第一电源线输出DC电压;以及负载突降处理部，用于当电力转换器的输出端的电压超过时进行负载突降保护动作阈值电压。通过与第一电源线分开设置的第二电源线，对负载突降处理部分提供工作电力。

8. 发明申请

US20150288308A1 ALTERNATOR OVERVOLTAGE PROTECTION CIRCUIT 有权
公开(公告)号：US20150288308A1
公开(公告)日：2015-10-08
申请号：US14420174
申请日：2014-01-03
申请人： MTD Products Inc.
发明人： Maynard S. Guadiz
IPC分类号： H02P9/04 , H02P9/00
CPC分类号： H02P9/006 , A01D34/64 , F02D29/06 , H02H3/202 , H02H7/065 , H02H7/067 , H02H7/09 , H02P9/04 , H02P2101/45
摘要： Disclosed is an alternator overvoltage protection circuit having a TRIAC and a MOSFET. The TRIAC is electrically connected to the MOSFET and the TRIAC is electrically connected to a magneto. The TRIAC is configured to ground the magneto when triggered by the MOSFET. The MOSFET is electrically connected to an alternator and configured to conduct when the alternator operates in an overvoltage condition. Also disclosed is a method of alternator overvoltage protection for a piece of outdoor power equipment, the method including providing a TRIAC and an alternator rotated by an engine having a magneto, wherein the alternator outputs a voltage when rotated by the engine. The method further includes configuring the TRIAC to ground the magneto when the alternator operates in an overvoltage condition, thereby disabling the magneto, which stops the rotation of the engine and stops the alternator from outputting voltage.

9. 发明申请

US20150137771A1 POWER GENERATION SYSTEM AND METHOD WITH FAULT RIDE THROUGH CAPABILITY 审中-公开
标题翻译：发电系统和通过能力故障的方法
公开(公告)号：US20150137771A1
公开(公告)日：2015-05-21
申请号：US14085392
申请日：2013-11-20
申请人： GENERAL ELECTRIC COMPANY
发明人： Ara Panosyan , Said Farouk Said El-Barbari , Stefan Schroeder
IPC分类号： H02H7/06 , H02P9/04 , H02P9/10
CPC分类号： H02H7/067 , H01H9/542 , H01H9/548 , H02H9/005 , H02P9/04 , H02P9/102 , H02P9/107
摘要： A power generation system includes a generator mechanically coupled to an engine to generate electrical power and a fault ride through system connected between the generator and a power grid. The fault ride through system includes a mechanical switch connected in parallel with a solid state switch and a controller for controlling the mechanical switch, the solid state switch and ignition of the engine in coordination.
摘要翻译：发电系统包括机械耦合到发动机以产生电力的发电机和连接在发电机和电网之间的故障穿越系统。故障穿越系统包括与固态开关并联连接的机械开关和用于协调控制机械开关，固态开关和发动机点火的控制器。

10. 发明申请

US20150077067A1 FAULT-TOLERANT WIND ENERGY CONVERSION SYSTEM 有权
标题翻译：耐高温能源转换系统
公开(公告)号：US20150077067A1
公开(公告)日：2015-03-19
申请号：US14314484
申请日：2014-06-25
申请人： Masdar Institute of Science and Technology
发明人： Parag Kanjiya , Bharath Ambati , Vinod Khadkikar
IPC分类号： H02P9/10 , H02H7/06
CPC分类号： H02P9/10 , H02H7/067
摘要： This disclosure is directed to a fault-tolerant energy conversion system. A fault-tolerant doubly-fed induction generator (DFIG) for use with a wind energy conversion system (WECS) consistent with the present disclosure may allow for seamless operation during all kinds of grid faults. In one embodiment, a six-switch grid side converter (GSC) commonly used with such systems may be replaced with nine-switch converter circuitry. With three additional switches, the nine-switch converter can provide two independent three phase outputs. For example, one three-phase output may be coupled to the grid through interfacing inductors to realize normal GSC operation, while the other three-phase output may be coupled to neutral side of the stator windings to provide fault ride-through (FRT) capability to the DFIG. A control algorithm may be employed that both achieves seamless fault ride-through during any kind of grid faults and strictly satisfies grid codes requirements.
摘要翻译：本公开涉及容错能量转换系统。与本公开一致的用于风能转换系统（WECS）的容错双馈感应发电机（DFIG）可允许在各种电网故障期间的无缝操作。在一个实施例中，与这种系统通常使用的六开关电网侧转换器（GSC）可以用九开关转换器电路代替。使用三个附加开关，九开关转换器可以提供两个独立的三相输出。例如，一个三相输出可以通过接口电感器耦合到电网，以实现正常的GSC操作，而另一个三相输出可以耦合到定子绕组的中性侧，以提供故障穿越（FRT）能力到DFIG。可以采用在任何种类的电网故障中实现无缝故障穿越的严格满足电网规范要求的控制算法。

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