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51. 发明申请

US20150115902A1 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：US20150115902A1
公开(公告)日：2015-04-30
申请号：US14065702
申请日：2013-10-29
申请人： General Electric Company
发明人： Ara Panosyan , Said Farouk Said El-Barbari , Stefan Schroeder
IPC分类号： H02H7/06 , H02P9/10
CPC分类号： H02H7/067 , H01H9/542 , H02J3/24 , H02J3/38 , H02J2003/001
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 resistor to absorb power from the generator during a grid fault condition. The mechanical switch and the solid state switch are controlled in coordination with the engine.
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的机械开关和电阻器，以在电网故障状态期间吸收来自发电机的电力。机械开关和固态开关与发动机协调控制。

52. 发明授权

US08947837B2 Overcurrent protection and fault isolation 有权
标题翻译：过流保护和故障隔离
公开(公告)号：US08947837B2
公开(公告)日：2015-02-03
申请号：US13445272
申请日：2012-04-12
申请人： Nebojsa Novakovic , Jef William Good
发明人： Nebojsa Novakovic , Jef William Good
IPC分类号： H02H7/06
CPC分类号： H02H7/262 , H02H7/266 , H02H7/30
摘要： An overcurrent fault protection method includes detecting an overcurrent fault in a variable frequency electric power generation system having a first main generator connected to a first alternating current bus through a first generator line contactor, a second main generator connected to a second alternating current bus through a second generator line contactor and an auxiliary power generator connected to a plurality of bus tie contactors, through a third generator line contactor, and connected to at least one of the first and second alternating current buses through the plurality of bus tie contactors, in response to detecting the overcurrent fault, locking out one or more of the plurality of bus tie contactors and in response to a continued detection of the overcurrent fault, opening at least one of the first second and third generator line contactors.
摘要翻译：一种过电流故障保护方法，包括检测在具有通过第一发电机线路接触器连接到第一交流母线的第一主发电机的变频发电系统中的过电流故障，通过第一发电机接线器连接到第二交流母线的第二主发电机第二发电机线路接触器和辅助发电机，其通过第三发电机线路接触器连接到多个总线连接接触器，并且响应于第二发电机线路接触器而连接到第一和第二交流电力总线中的至少一个，检测过电流故障，锁定多个总线连接接触器中的一个或多个并且响应于过电流故障的继续检测，打开第一和第三发电机线路接触器中的至少一个。

53. 发明授权

US08928292B2 Multiple voltage generator and voltage regulation methodology for power dense integrated power systems 有权
标题翻译：用于电力密集一体化电力系统的多电压发生器和电压调节方法
公开(公告)号：US08928292B2
公开(公告)日：2015-01-06
申请号：US13060205
申请日：2009-08-24
申请人： Gene Castles , Edgar S. Thaxton
发明人： Gene Castles , Edgar S. Thaxton
IPC分类号： H02P11/00 , H02H7/06 , H02P9/00
CPC分类号： G06F1/263 , B60L11/02 , B60L2200/32 , B60L2220/42 , B60L2220/54 , B63H21/17 , B63H23/24 , H02J3/38 , H02J4/00 , H02K19/34 , H02P9/307 , Y02E60/721 , Y02T10/641 , Y02T10/646 , Y02T10/70 , Y02T10/7077 , Y04S10/126
摘要： An integrated power system suitable for simultaneously powering marine propulsion and service loads. The system includes: (a) at least one generator configured with at least first and second armature windings configured to output respective first and second alternating current power signals of different voltages, the at least two armature windings positioned within the same stator slots so that they magnetically couple; (b) at least first and second rectifier circuits coupled to said generator to convert said first and second alternating current power signals into first and second direct current power signals; and (c) a first load to which said first direct current power signal is coupled and a second load to which said second direct current power signal is coupled.
摘要翻译：一种适用于同时为船舶推进和服务负载供电的综合电力系统。该系统包括：（a）至少一个发电机，其配置有至少第一和第二电枢绕组，其被配置为输出不同电压的相应的第一和第二交流电力信号，所述至少两个电枢绕组定位在相同的定子槽内，使得它们磁耦合（b）耦合到所述发生器的至少第一和第二整流器电路将所述第一和第二交流电力信号转换成第一和第二直流电力信号; 和（c）所述第一直流电力信号耦合到的第一负载和所述第二直流电力信号耦合到的第二负载。

54. 发明授权

US08907636B2 Method and device for primary frequency regulation based on bang-bang control 有权
标题翻译：基于爆炸控制的主要频率调节方法和装置
公开(公告)号：US08907636B2
公开(公告)日：2014-12-09
申请号：US13866331
申请日：2013-04-19
申请人： State Grid Corporation of China , North China Electric Power Research Institute Co. Ltd.
发明人： Weihua Li , Zhenyong Yang , Aiguo Gao , Yi Luo , Liankun Lai , Feiyi Li , Yanjin Wang
IPC分类号： H02P11/00 , H02H7/06 , H02P9/00 , F03D9/00 , H02P9/04
CPC分类号： H02P9/04
摘要： The present invention provides a method and a device for primary frequency regulation based on bang-bang control, the method comprises: obtaining in real-time a power grid frequency of a steam turbine generator set; performing a subtraction operation on a rated power grid frequency and said power grid frequency to generate a power grid frequency difference; performing a dead zone process on the power grid frequency difference according to a dead zone fixed value to generate a frequency difference; performing a frequency difference compensation operation on the frequency difference to generate a frequency difference compensation instruction; and combining an original primary frequency regulation output instruction with the frequency difference compensation instruction and outputting the result to a steam turbine speed regulation system when a selecting switch is 1.
摘要翻译：本发明提供了一种基于爆轰控制的主要频率调节方法和装置，该方法包括：实时获取汽轮机发电机组的电网频率; 对额定电网频率和所述电网频率执行减法运算以产生电网频差; 根据死区固定值对电网频差进行死区处理，生成频差; 对所述频率差执行频差补偿操作以产生频差补偿指令; 并且当选择开关为1时，将原始主频率调节输出指令与频率差补偿指令组合并将结果输出到汽轮机调速系统。

55. 发明授权

US08878498B2 Method for reducing a voltage ripple due to rotational nonuniformity of a generator driven by an internal combustion engine 有权
标题翻译：一种用于减小由内燃机驱动的发电机的旋转不均匀性引起的电压纹波的方法
公开(公告)号：US08878498B2
公开(公告)日：2014-11-04
申请号：US13882102
申请日：2011-09-09
申请人： Ralf Herbig , Julian Roesner
发明人： Ralf Herbig , Julian Roesner
IPC分类号： H02P11/00 , H02H7/06 , H02P9/06 , H02P9/10 , H02J7/14 , H02M7/217
CPC分类号： H02M7/2173 , H02J7/1446 , H02J7/1492 , H02P9/105 , Y02T10/92
摘要： A method for reducing a ripple, caused by rotational nonuniformity of an internal combustion engine, in the output voltage of a generator which is driven by the internal combustion engine is provided. The generator has a stator winding, a rotor winding, a field controller, associated with the rotor winding, for regulating the output voltage of the generator, and a downstream power converter having controllable switching elements. To reduce the voltage ripple, the output voltage of the generator is regulated on the stator side by appropriately controlling the switching elements of the power converter.
摘要翻译：提供了一种用于减少由内燃机的旋转不均匀性引起的在由内燃机驱动的发电机的输出电压中的波动的方法。发电机具有用于调节发电机的输出电压的定子绕组，转子绕组，与转子绕组相关联的励磁控制器，以及具有可控开关元件的下游功率转换器。为了降低电压纹波，通过适当地控制功率转换器的开关元件，发电机的输出电压在定子侧被调节。

56. 发明授权

US08854015B2 Current controller and generator system 有权
标题翻译：电流控制器和发电机系统
公开(公告)号：US08854015B2
公开(公告)日：2014-10-07
申请号：US13909198
申请日：2013-06-04
申请人： Heng Deng
发明人： Heng Deng
IPC分类号： H02P11/00 , H02H7/06 , H02P9/00 , H02M1/084 , H02P21/12 , F03D9/00 , H02P9/04
CPC分类号： H02P9/00 , H02M1/084 , H02P21/12
摘要： A current controller for controlling plural stator currents of plural stator windings of an electrical machine, in particular a generator, is provided, wherein the plural windings are separately connectable to a converter. The current controller includes a positive-sequence current controller configured to provide a first voltage command, in particular in a rotating dq+ frame, based on the plural stator currents; a negative-sequence current controller configured to provide a second voltage command, in particular in the dq+ frame, based on the plural stator currents. Further, the current controller includes a summation system for adding the first voltage command and the second voltage command to obtain a summed voltage command based on which the converter is controllable.
摘要翻译：提供了用于控制电机的多个定子绕组的多个定子电流的电流控制器，特别是发电机，其中多个绕组可独立地连接到转换器。电流控制器包括正序电流控制器，其被配置为基于多个定子电流提供特别是旋转dq +帧中的第一电压命令; 负序电流控制器被配置为基于多个定子电流提供特别是在dq +帧中的第二电压命令。此外，电流控制器包括用于将第一电压命令和第二电压命令相加的求和系统，以获得基于该转换器可控的求和电压命令。

57. 发明授权

US08841889B2 Method of controlling the regulation of a motor vehicle alternator, and corresponding devices 有权
标题翻译：控制机动车辆交流发电机的调节方法及相应的装置
公开(公告)号：US08841889B2
公开(公告)日：2014-09-23
申请号：US13639714
申请日：2011-04-06
申请人： Pierre Tisserand , Pierre Chassard , Vincent Gendron , Guillaume Duthilleul
发明人： Pierre Tisserand , Pierre Chassard , Vincent Gendron , Guillaume Duthilleul
IPC分类号： H02H7/06 , H02P11/00 , H02P9/00
CPC分类号： H02P9/02 , H02J7/1461 , H02P9/48
摘要： A method comprises the transmission to a regulator (8) of the alternator of width-modulated pulses (PWM1) exhibiting a duty ratio representative of a setpoint value (Vref) continuously included between a first reference duty ratio (DC1) and a second reference duty ratio (DC2), and the detection of these pulses by the regulator so as to generate the setpoint value. The method also comprises the transmission to the regulator of other width-modulated pulses (PWM2) exhibiting a specific duty ratio (EXOF_R) which is less than the first reference duty ratio (DC1) and ties between a low duty ratio (DCL) and a high duty ratio (DCH), and the detection of these other pulses by the regulator, in a first step, and the generation of an opening signal (EXOF) for a circuit for excitation of the alternator, in a second step, following this latter detection.
摘要翻译：一种方法包括向交流发电机的调节器（8）传输宽度调制脉冲（PWM1），该宽度调制脉冲（PWM1）表现出连续包括在第一参考占空比（DC1）和第二参考占空比（DC1）之间的设定点值比例（DC2），以及由调节器检测这些脉冲，以便产生设定值。该方法还包括向调节器传输表现出小于第一参考占空比（DC1）的特定占空比（EXOF_R）的其它宽度调制脉冲（PWM2），并且低占空比（DCL）和高功率比（DCH），以及在第一步骤中由调节器检测这些其它脉冲，并且在第二步骤中产生用于交流发电机的激励的电路的开启信号（EXOF）检测。

58. 发明申请

US20140055889A1 METHODS FOR PROVIDING GENERATOR STATOR WINDING GROUND FAULT PROTECTION 有权
标题翻译：提供发电机定子绕组接地故障保护的方法
公开(公告)号：US20140055889A1
公开(公告)日：2014-02-27
申请号：US13971433
申请日：2013-08-20
申请人： Alliant Energy Corporate Services, Inc.
发明人： Nader Safari-Shad
IPC分类号： H02H7/06
CPC分类号： H02H3/16 , A61B1/123 , A61B1/125 , H02H7/06
摘要： The present invention includes a method for providing ground fault protection to a generator. The method includes determining the existing state of the generator and second, determining the updated alarm or trip conditions of a relay connected to the generator in view of the existing state of the generator. This includes estimating a ratio of the magnitude of the 3rd harmonic neutral voltage to the magnitude of the 3rd harmonic terminal voltage of a generator, along with calculating the residual 3rd harmonic voltage from the estimated 3rd harmonic ratio. From this, a comparison is made between the energy of the residual voltage with a fractional energy of the 3rd harmonic neutral voltage. Based on this comparison, an alarm or trip condition is signaled when the energy of the residual voltage is greater than the fractional energy of the 3rd harmonic neutral voltage. The invention further includes adaptive relays and systems utilizing the adaptive relays, along with methods of producing power using the adaptive relays.
摘要翻译：本发明包括向发电机提供接地故障保护的方法。该方法包括确定发电机的现有状态，其次，根据发电机的现有状态确定连接到发电机的继电器的更新的报警或跳闸状态。这包括估计三次谐波中性点电压的大小与发电机的三次谐波端子电压的大小的比率，以及从估计的三次谐波比值计算剩余的三次谐波电压。由此，将剩余电压的能量与三次谐波中性电压的分数能量进行比较。基于该比较，当剩余电压的能量大于三次谐波中性电压的分数能量时，发出报警或跳闸条件。本发明还包括使用自适应继电器的自适应继电器和系统，以及使用自适应继电器产生电力的方法。

59. 发明授权

US08570003B2 Double fed induction generator converter and method for suppressing transient in deactivation of crowbar circuit for grid fault ridethrough 有权
标题翻译：双馈感应发电机转换器以及用于抑制电网故障消除通路中消弧电路失效瞬变的方法
公开(公告)号：US08570003B2
公开(公告)日：2013-10-29
申请号：US13085639
申请日：2011-04-13
申请人： Haihui Lu , Zhenhuan Yuan , Lixiang Wei , Russel Kerkman , Richard Lukaszewski , Ahmed Mohamed Sayed Ahmed
发明人： Haihui Lu , Zhenhuan Yuan , Lixiang Wei , Russel Kerkman , Richard Lukaszewski , Ahmed Mohamed Sayed Ahmed
IPC分类号： H02P11/00 , H02P9/00 , H02H7/06 , H02P1/00 , H02P1/46 , H02P23/00 , G05B11/28
CPC分类号： H02P9/007 , H02P9/10
摘要： A double fed induction generator (DFIG) system and controller are presented in which the rotor side converter is preloaded with one or more initial values for resuming regulated operation to counteract transients upon deactivation of the crowbar protection circuit to provide grid fault ride through.
摘要翻译：提出了一种双馈感应发电机（DFIG）系统和控制器，其中转子侧转换器预载有一个或多个初始值，用于恢复调节操作，以在停用撬棒保护电路时抵消瞬变以提供电网故障穿越。

60. 发明授权

US08541989B2 Power supply apparatus 有权
标题翻译：电源设备
公开(公告)号：US08541989B2
公开(公告)日：2013-09-24
申请号：US13003841
申请日：2009-07-15
申请人： Takahiro Urakabe , Tatsuya Okuda , Akihiko Iwata , Hirotoshi Maekawa , Masaru Kobayashi , Matahiko Ikeda , Yoshikazu Tsunoda , Kazutoshi Kaneyuki , Yuya Tanaka
发明人： Takahiro Urakabe , Tatsuya Okuda , Akihiko Iwata , Hirotoshi Maekawa , Masaru Kobayashi , Matahiko Ikeda , Yoshikazu Tsunoda , Kazutoshi Kaneyuki , Yuya Tanaka
IPC分类号： H02P11/00 , H02P9/00 , H02H7/06 , H02P9/14 , H02M5/45
CPC分类号： H02M3/158 , H02J7/1492 , H02P9/48 , H02P2101/45 , H02P2201/07 , Y02T10/92
摘要： A power supply apparatus includes: an AC generator including an AC generating section, and a rectifier for rectifying an AC voltage generated in the AC generating section, and outputting a DC voltage; and a DC/DC converter for converting the output voltage of the rectifier into a DC voltage having a different voltage value, wherein the output voltage of the rectifier is set to be larger than the output voltage of the DC/DC converter in accordance with the rotation speed of the AC generating section and the amount of power supply to an electrical load connected to the DC/DC converter, and is stepped down and outputted by using the DC/DC converter. The power supply apparatus is capable of increasing an output power efficiently.
摘要翻译：一种电源装置，包括：交流发电机，包括交流发电部分和整流器，用于整流在所述交流发电部分中产生的交流电压，并输出直流电压; 以及用于将整流器的输出电压转换为具有不同电压值的直流电压的DC / DC转换器，其中整流器的输出电压被设定为大于根据所述DC / DC转换器的输出电压交流发电部的转速和连接到DC / DC转换器的电负载的供电量，通过使用DC / DC转换器进行降压输出。电源装置能够有效地提高输出功率。

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