公开(公告)号：US08467210B2

公开(公告)日：2013-06-18

申请号：US12741657

申请日：2007-11-07

申请人： Andreas Gerner ,  Tanja Dambach ,  Christa Werner ,  Martin Werner ,  Severin Werner

发明人： Andreas Gerner ,  Armin Werner

IPC分类号： H02M3/24

CPC分类号： H02J3/26 ,  H02J3/1835 ,  Y02E40/30 ,  Y02E40/50

摘要： In order to provide a method for regulating a reactive power compensator, which is connected to an alternating current line having multiple phases, wherein for each phase an actual voltage V12, V23 and V31 present thereon is detected and from the actual voltages V12, V23 and V31 a counter system actual fraction is calculated. A control circuit suppresses the counter system actual fraction. A feedback loop determines the level of suppression of the counter system actual fraction with the help of controlled parameters. The method enables an adjustment of the counter system that is largely independent from operating staff. Accordingly, a comparator unit compares the counter system actual fraction to the counter system target fraction and defines the controlled parameters as a function of the comparison.

摘要翻译： 为了提供一种用于调节无功功率补偿器的方法，该无功功率补偿器连接到具有多相的交流线路，其中对于每个相位，检测其上存在的实际电压V12，V23和V31，并从实际电压V12，V23和 计算V31计数器实际分数。 控制电路抑制计数器系统的实际分数。 反馈环路通过受控参数确定计数器系统实际分数的抑制水平。 该方法使得能够大量独立于操作人员的计数器系统的调整。 因此，比较器单元将计数系统实际分数与计数系统目标分数进行比较，并将受控参数定义为比较的函数。

公开(公告)号：US20130134789A1

公开(公告)日：2013-05-30

申请号：US13304935

申请日：2011-11-28

申请人： Ara Panosyan ,  Reigh Allen Walling

发明人： Ara Panosyan ,  Reigh Allen Walling

IPC分类号： G05F1/70 ,  H02J1/00

CPC分类号： H02J3/1835 ,  H02J3/382 ,  H02J3/383 ,  H02J3/386 ,  Y02E10/563 ,  Y02E10/763 ,  Y02E40/30 ,  Y10T307/718

摘要： A reactive power compensation method includes generating a variable power factor curve for at least one power generator based on information regarding network parameters; obtaining a value of an active output power parameter from the at least one generator; computing a reactive power based on the variable power factor curve and the value of the active power output parameter of the at least one generator; generating a reactive power compensation command based on the computed reactive power; and transmitting the reactive power compensation command to the at least one power generator for controlling operation of the at least one power generator.

摘要翻译： 无功功率补偿方法包括基于关于网络参数的信息为至少一个发电机生成可变功率因数曲线; 从所述至少一个发电机获得有效输出功率参数的值; 基于所述可变功率因数曲线和所述至少一个发电机的有功功率输出参数的值来计算无功功率; 基于所计算的无功功率产生无功功率补偿命令; 以及向所述至少一个发电机发送所述无功功率补偿命令，以控制所述至少一个发电机的运行。

公开(公告)号：US08427118B2

公开(公告)日：2013-04-23

申请号：US12606074

申请日：2009-10-26

申请人： Mark Edward Cardinal ,  Jignesh Govindlal Gandhi ,  Andreas Kirchner

发明人： Mark Edward Cardinal ,  Jignesh Govindlal Gandhi ,  Andreas Kirchner

IPC分类号： G05F5/00

CPC分类号： H02J3/383 ,  H02J3/18 ,  H02J3/24 ,  H02J3/386 ,  Y02E10/563 ,  Y02E10/763 ,  Y02E40/30 ,  Y10T307/50

摘要： Certain embodiments of the invention may include systems and methods for regulating power in renewable energy sources. According to an exemplary embodiment of the invention, a method is provided for regulating active power produced by the renewable energy source towards an apparent power setpoint. The method may include selectively regulating voltage based on power factor foldback or voltage foldback associated with the renewable energy source. When power factor foldback is selected, the method may include regulating the power factor associated with the renewable energy source based at least in part on a power factor angle magnitude setpoint, and reducing the power factor angle magnitude setpoint towards zero when apparent power produced by the renewable energy source approaches or exceeds the apparent power setpoint. When voltage foldback is selected, the method may include regulating voltage of the renewable energy source based at least in part on measured VARs and an apparent power ratio, where the apparent power ratio is about equal to the apparent power divided by the apparent power setpoint.

摘要翻译： 本发明的某些实施例可以包括用于调节可再生能源中的功率的系统和方法。 根据本发明的示例性实施例，提供了一种用于调节由可再生能源产生的有效功率朝向视在功率设定点的方法。 该方法可以包括基于与可再生能源相关联的功率因数折返或电压折返来选择性地调节电压。 当选择功率因数折返时，该方法可以包括至少部分地基于功率因数角幅度设定点来调节与可再生能源相关联的功率因数，并且当由功率因数角产生的视在功率 可再生能源接近或超过视在功率设定点。 当选择电压折返时，该方法可以包括至少部分地基于测量的VAR和视在功率比来调节可再生能源的电压，其中视在功率比等于视在功率除以视在功率设定点。

公开(公告)号：US20130094264A1

公开(公告)日：2013-04-18

申请号：US13634205

申请日：2010-03-15

申请人： William Crookes ,  David Reginald Trainer ,  Donald Collin Murray Oates

发明人： William Crookes ,  David Reginald Trainer ,  Donald Collin Murray Oates

IPC分类号： H02M7/217

CPC分类号： H02M7/217 ,  H02J3/1835 ,  H02J3/1857 ,  H02M7/49 ,  H02M2007/4835 ,  Y02E40/12 ,  Y02E40/16 ,  Y02E40/26 ,  Y02E40/30

摘要： A static synchronous compensator for use in reactive power compensation, the static synchronous compensator comprising at least one primary compensator limb including first and second DC terminals, and an AC terminal for connection in use to an AC network, the or each primary compensator limb defining first and second limb portions, each limb portion-including at least one switching element connected in series with a chain-link converter-between a respective one of the first and second DC terminate and the AC terminal, the switching elements of the first and second limb portions being operable to switch the respective chain-link converters in and out of circuit between the respective DC terminal and the AC terminal and the chain-link converters being operable to generate a voltage waveform at the AC terminal; and a secondary compensator limb including at least one DC link capacitor connected between the first and second DC terminals, the secondary compensator limb being connected in parallel with the or each primary compensator limb.

摘要翻译： 一种用于无功补偿的静态同步补偿器，所述静态同步补偿器包括至少一个包括第一和第二DC端子的主补偿器支路和用于连接到AC网络的AC端子，所述或每个初级补偿器支路限定第一 和第二分支部分，每个分支部分 - 包括与第一和第二直流终端之间的相应一个与AC端子之间的链链路转换器串联连接的至少一个开关元件，第一和第二支路的开关元件 部分可操作以在相应的直流端子和交流端子之间切换各个链节转换器进入和离开电路，链式转换器可操作以在AC端子处产生电压波形; 以及次级补偿器支路，其包括连接在所述第一和第二DC端子之间的至少一个DC链路电容器，所述辅助补偿器支路与所述或每个主要补偿器支路并联连接。

公开(公告)号：US08405247B2

公开(公告)日：2013-03-26

申请号：US12970350

申请日：2010-12-16

申请人： Nicholas W. Miller ,  Robert William Delmerico ,  Reigh Allen Walling ,  Einar Vaughn Larsen

发明人： Nicholas W. Miller ,  Robert William Delmerico ,  Reigh Allen Walling ,  Einar Vaughn Larsen

IPC分类号： H02J7/00 ,  H02J9/00

CPC分类号： H02J3/383 ,  H02J3/1821 ,  Y02B10/12 ,  Y02B10/14 ,  Y02E10/563 ,  Y02E40/30 ,  Y10T29/4902 ,  Y10T307/615 ,  Y10T307/735

摘要： A method of assembling a motor stall correction system includes coupling an inverter-based electric power generation device to an electric power inverter assembly. The method also includes coupling the electric power inverter assembly to at least one induction motor. The method further includes operatively coupling at least one controller to the electric power inverter assembly. The controller is programmed to transmit electric current from the inverter-based electric power generation device to the electric power inverter assembly. The controller is also programmed to transmit real current and reactive current from the electric power inverter assembly to the induction motor. The controller is further programmed to modulate the real current and the reactive current as a function of at least one of an electric power grid frequency and an electric power grid voltage.

摘要翻译： 一种组装电动机失速校正系统的方法包括将基于逆变器的发电装置耦合到电力逆变器组件。 该方法还包括将电力逆变器组件耦合到至少一个感应电动机。 该方法还包括将至少一个控制器可操作地耦合到电力逆变器组件。 控制器被编程为将电流从基于逆变器的发电装置传送到电力逆变器组件。 控制器还被编程为将电力和电流电流从电力逆变器组件传输到感应电动机。 控制器进一步被编程为根据电力电网频率和电力电网电压中的至少一个来调制实际电流和无功电流。

公开(公告)号：US20130070489A1

公开(公告)日：2013-03-21

申请号：US13699899

申请日：2010-08-18

申请人： Dongsheng Zhang

发明人： Dongsheng Zhang

IPC分类号： H02M5/458

CPC分类号： H02M5/458 ,  H02J3/1835 ,  H02M5/45 ,  H02M2001/0074 ,  H02M2001/008 ,  Y02E40/30

摘要： The disclosure discloses an electric energy conversion device and system, to solve the problems of severe harmonic pollution, low power factor during the electric energy feedback from a power generation device to a power grid in the conventional art. The electric energy conversion device comprises: a plurality of single-phase rectifier bridge circuits, a first input ends of the a plurality of single-phase rectifier bridge circuits, and a second input ends of the a plurality of single-phase rectifier bridge circuits, wherein two input ends of each three-phase fully-controlled bridge circuit are connected with two output ends of each the rectifier bridge circuit respectively. Through the technical solution of the disclosure, the waveform coefficient of the current of the power generation device is improved, the harmonic wave is reduced, and the power factor is improved.

摘要翻译： 本发明公开了一种电能转换装置和系统，用于解决传统技术中从发电装置到电网的电能反馈期间严重谐波污染的问题，低功率因数。 电能转换装置包括：多个单相整流桥电路，多个单相整流桥电路的第一输入端和多个单相整流桥电路的第二输入端， 其中每个三相全控桥电路的两个输入端分别与每个整流桥电路的两个输出端连接。 通过本发明的技术方案，提高了发电装置的电流波形系数，降低了谐波，提高了功率因数。

公开(公告)号：US08400003B2

公开(公告)日：2013-03-19

申请号：US12735853

申请日：2009-02-18

申请人： Heinz-Hermann Letas ,  Jens Fortmann

发明人： Heinz-Hermann Letas ,  Jens Fortmann

IPC分类号： F03D9/00

CPC分类号： H02J3/18 ,  F03D9/25 ,  F03D9/255 ,  H02J3/1892 ,  H02J3/386 ,  H02M5/4585 ,  H02P9/007 ,  H02P2101/15 ,  H02P2207/01 ,  Y02E10/725 ,  Y02E10/763 ,  Y02E40/30

摘要： A method for controlling a converter of a wind energy installation. The converter is connected to the rotor of a doubly-fed asynchronous generator in order to feed electrical power into an electrical grid and comprises a generator-side inverter, a grid-side inverter, and at least one converter regulator for regulating and/or controlling current output from at least one of the inverters to the doubly-fed asynchronous generator and/or to the electrical grid. The method includes detecting a change in output real power, determining whether the detected change satisfies a predefined condition, and changing a nominal value of reactive power to be output in an opposite sense to a change in real power at the grid-side inverter and in a same sense as the generator-side inverter when the predefined condition is satisfied.

摘要翻译： 一种用于控制风能设备的转换器的方法。 转换器连接到双馈异步发电机的转子，以将电力馈送到电网中，并且包括发电机侧逆变器，电网侧逆变器和用于调节和/或控制的至少一个转换器调节器 从至少一个逆变器输出到双馈异步发电机和/或电网。 该方法包括检测输出有功功率的变化，确定检测到的变化是否满足预定条件，以及将无功功率的额定值改变为与电网侧逆变器的有功功率的变化相反的方式输出 当满足预定义条件时与发生器侧逆变器相同的感觉。

公开(公告)号：US20130049703A1

公开(公告)日：2013-02-28

申请号：US13222961

申请日：2011-08-31

申请人： MILUN PERISIC ,  CHRISTOPHER P. LAWRENCE ,  RAY M. RANSOM ,  LATEEF A. KAJOUKE

发明人： MILUN PERISIC ,  CHRISTOPHER P. LAWRENCE ,  RAY M. RANSOM ,  LATEEF A. KAJOUKE

IPC分类号： H02J7/04

CPC分类号： H01M10/44 ,  H01M10/48 ,  H02J3/18 ,  H02J7/04 ,  H02J7/32 ,  Y02E40/30 ,  Y02E60/12

摘要： Systems and methods are provided for an electrical system. The electrical system, for example, includes a first load, an interface configured to receive a voltage from a voltage source, and a controller configured to receive the voltage through the interface and to provide a voltage and current to the first load. The controller may be further configured to, receive information on a second load electrically connected to the voltage source, determine an amount of reactive current to return to the voltage source such that a current drawn by the electrical system and the second load from the voltage source is substantially real, and provide the determined reactive current to the voltage source.

摘要翻译： 为电气系统提供系统和方法。 例如，电气系统包括第一负载，被配置为从电压源接收电压的接口以及配置成通过接口接收电压并向第一负载提供电压和电流的控制器。 控制器还可以被配置为：在电连接到电压源的第二负载上接收信息，确定返回到电压源的无功电流的量，使得由电系统和第二负载从电压源 基本上是实际的，并且将确定的无功电流提供给电压源。

公开(公告)号：US08355265B2

公开(公告)日：2013-01-15

申请号：US13047754

申请日：2011-03-14

申请人： Gary A. Gengenbach

发明人： Gary A. Gengenbach

IPC分类号： H02M3/335

CPC分类号： H02J3/18 ,  H02J3/42 ,  H02M7/68 ,  Y02E10/563 ,  Y02E40/30 ,  Y10T307/735

摘要： Systems and methods for managing interaction between inverter-based DC and other power systems are disclosed. In one embodiment, a 3-phase isolation transformer is fluxed to create a 3-phase rotating field from the output of a source inverter. An inductive filter turns that output into three sine waves. A secondary inverter regenerates the system, sometimes after the isolation transformer is fluxed, and by advancing or retarding the secondary inverter's phase, current (and, thus, the DC voltage and power direction) is controlled. In another embodiment, an inverter is supplied by a DC source. The inverter is controlled to match its output voltage, current, and phase to a live AC grid, then the two are connected. The inverter frequency is then driven to advance the phase of the inverter in relation to the grid. Alternatively, the inverter voltage is then driven at a level greater than that of the grid.

摘要翻译： 公开了用于管理基于逆变器的DC和其他电力系统之间的交互的系统和方法。 在一个实施例中，三相隔离变压器被焊接以从源逆变器的输出产生三相旋转场。 感应滤波器将该输出转换成三个正弦波。 次级逆变器重新生成系统，有时在隔离变压器通电后，通过推进或延迟二次变频器的相位，控制电流（以及因此的直流电压和功率方向）。 在另一个实施例中，逆变器由DC源提供。 控制逆变器将其输出电压，电流和相位与实时交流电网相匹配，然后将两者连接起来。 然后驱动逆变器频率以相对于电网推进逆变器的相位。 或者，逆变器电压然后以大于电网的电平驱动。

公开(公告)号：US08330293B2

公开(公告)日：2012-12-11

申请号：US12757884

申请日：2010-04-09

申请人： David Brown ,  Norman J. Weigert ,  Gery J. Kissel ,  George D. Bellino ,  David B. Ouwerkerk ,  Christopher P. Lawrence

发明人： David Brown ,  Norman J. Weigert ,  Gery J. Kissel ,  George D. Bellino ,  David B. Ouwerkerk ,  Christopher P. Lawrence

IPC分类号： H02J3/32 ,  H02J7/34

CPC分类号： H02J3/18 ,  H02J7/045 ,  H02J13/002 ,  H02J13/0055 ,  H02J13/0075 ,  Y02B70/3266 ,  Y02E40/30 ,  Y02E40/74 ,  Y02P80/11 ,  Y04S10/22 ,  Y04S20/242 ,  Y10T307/359 ,  Y10T307/527

摘要： A charging system of the present invention is connectable to a power grid having a monitoring device. The monitoring device monitors the power delivered to a plurality of loads and determines a power factor and a power factor correction value associated with the loads. The power factor correction value indicates the difference between the power factor and unity. The charging system includes an electrical device, a charger in communication with the electrical device, a charging controller, a power factor correction circuit, a communication device, and a controller. The communication device of the charger receives a data signal from the monitoring device indicative of the power factor correction value associated with the plurality of loads. The power factor correction circuit is configured to communicate an input current to and from the power grid, which adjusts the power factor of the associated loads to about unity.

摘要翻译： 本发明的充电系统可连接到具有监控装置的电网。 监视装置监视传送到多个负载的功率，并确定与负载相关联的功率因数和功率因数校正值。 功率因数校正值表示功率因数和功率因数之间的差异。 充电系统包括电气设备，与电气设备通信的充电器，充电控制器，功率因数校正电路，通信设备和控制器。 充电器的通信装置从监视装置接收指示与多个负载相关联的功率因数校正值的数据信号。 功率因数校正电路被配置为将输入电流传送到电网和从电网传送，其将相关联的负载的功率因数调整到大约一个一个。