Method and apparatus for control of fault-induced delayed voltage recovery (FIDVR) with photovoltaic and other inverter-based devices
    1.
    发明授权
    Method and apparatus for control of fault-induced delayed voltage recovery (FIDVR) with photovoltaic and other inverter-based devices 有权
    用光伏和其他逆变器设备控制故障诱发延迟电压恢复(FIDVR)的方法和装置

    公开(公告)号:US08405247B2

    公开(公告)日:2013-03-26

    申请号:US12970350

    申请日:2010-12-16

    IPC分类号: H02J7/00 H02J9/00

    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。

    WINDFARM COLLECTOR SYSTEM LOSS OPTIMIZATION
    2.
    发明申请
    WINDFARM COLLECTOR SYSTEM LOSS OPTIMIZATION 有权
    WINDFARM收集系统损失优化

    公开(公告)号:US20090218817A1

    公开(公告)日:2009-09-03

    申请号:US12039028

    申请日:2008-02-28

    IPC分类号: F03D9/00 H02P9/04

    摘要: A windfarm system is provided that is optimized for minimizing electrical loss. The windfarm system includes a plurality of wind turbine generators and a collector system including a conductor or network of conductors. The collector system also including a plurality of transformers with one or more transformers connected between each wind turbine generator and the conductors, and a substation transformer connecting the windfarm collector system to the electrical grid. The windfarm system also includes a monitoring system for monitoring the windfarm system electrical output and thermal condition, and outputs of the individual wind turbine generators. A control function may include voltage and real and reactive power commands to the individual wind turbine generators. The control function incorporates an algorithm whose technical effect is minimizing electrical losses for the windfarm system.

    摘要翻译: 为风电场系统提供优化,以最大限度减少电力损失。 风电场系统包括多个风力涡轮发电机和包括导体或导体网络的收集器系统。 收集器系统还包括具有连接在每个风力涡轮发电机和导体之间的一个或多个变压器的多个变压器,以及将风电收集器系统连接到电网的变电站变压器。 风电场系统还包括一个用于监测风电系统电气输出和热条件的监测系统,以及各风力发电机的输出。 控制功能可以包括对各个风力涡轮发电机的电压和实际和无功功率命令。 控制功能结合了一种算法,其技术效果是最小化风电系统的电气损耗。

    METHOD AND APPARATUS FOR CONTROL OF FAULT-INDUCED DELAYED VOLTAGE RECOVERY (FIDVR) WITH PHOTOVOLTAIC AND OTHER INVERTER-BASED DEVICES
    3.
    发明申请
    METHOD AND APPARATUS FOR CONTROL OF FAULT-INDUCED DELAYED VOLTAGE RECOVERY (FIDVR) WITH PHOTOVOLTAIC AND OTHER INVERTER-BASED DEVICES 有权
    用于控制具有光伏和其他基于逆变器的器件的故障诱导延迟电压恢复(FIDVR)的方法和装置

    公开(公告)号:US20120049629A1

    公开(公告)日:2012-03-01

    申请号:US12970350

    申请日:2010-12-16

    IPC分类号: H02J9/00 H05K13/00

    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。

    Windfarm collector system loss optimization
    4.
    发明授权
    Windfarm collector system loss optimization 有权
    风电收集系统损耗优化

    公开(公告)号:US07994658B2

    公开(公告)日:2011-08-09

    申请号:US12039028

    申请日:2008-02-28

    IPC分类号: H02J3/00

    摘要: A windfarm system is provided that is optimized for minimizing electrical loss. The windfarm system includes a plurality of wind turbine generators and a collector system including a conductor or network of conductors. The collector system also including a plurality of transformers with one or more transformers connected between each wind turbine generator and the conductors, and a substation transformer connecting the windfarm collector system to the electrical grid. The windfarm system also includes a monitoring system for monitoring the windfarm system electrical output and thermal condition, and outputs of the individual wind turbine generators. A control function may include voltage and real and reactive power commands to the individual wind turbine generators. The control function incorporates an algorithm whose technical effect is minimizing electrical losses for the windfarm system.

    摘要翻译: 为风电场系统提供优化,以最大限度减少电力损失。 风电场系统包括多个风力涡轮发电机和包括导体或导体网络的收集器系统。 收集器系统还包括具有连接在每个风力涡轮发电机和导体之间的一个或多个变压器的多个变压器,以及将风电收集器系统连接到电网的变电站变压器。 风电场系统还包括一个用于监测风电系统电气输出和热条件的监测系统,以及各风力发电机的输出。 控制功能可以包括对各个风力涡轮发电机的电压和实际和无功功率命令。 控制功能结合了一种算法,其技术效果是最小化风电系统的电气损耗。

    Intra-area master reactive controller for tightly coupled windfarms
    5.
    发明授权
    Intra-area master reactive controller for tightly coupled windfarms 有权
    用于紧耦合风电场的区域内无功控制器

    公开(公告)号:US07839024B2

    公开(公告)日:2010-11-23

    申请号:US12181658

    申请日:2008-07-29

    IPC分类号: H02J3/38 H02P9/00

    摘要: A wind turbine generator control system is provided for controlling output of a plurality of tightly-coupled windfarms connected at a point of common coupling with a power system grid. A master reactive control device employs algorithms whose technical effect is to coordinate the real power, reactive power and voltage output of the multiple windfarms. The controller incorporates a reactive power regulator that can be used to regulate reactive power, power factor or voltage at the point of common coupling and an active power regulator that can be used to regulate real power at the point of common coupling; such that each windfarm is not asked to contribute or violate its own operating capability.

    摘要翻译: 提供一种风力发电机控制系统,用于控制在与电力系统电网的公共耦合点连接的多个紧密耦合的风电场的输出。 主反应控制装置采用算法,其技术作用是协调多个风电场的有功功率,无功功率和电压输出。 控制器包含一个无功功率调节器,可用于调节公共耦合点处的无功功率,功率因数或电压,以及可用于调节公共耦合点实际功率的有功功率调节器; 使得每个风电场不被要求贡献或违反其自身的运行能力。

    System and method for coordinating shunt reactance switching
    6.
    发明授权
    System and method for coordinating shunt reactance switching 失效
    用于协调分励电抗切换的系统和方法

    公开(公告)号:US5402057A

    公开(公告)日:1995-03-28

    申请号:US874151

    申请日:1992-04-27

    IPC分类号: H02J3/18 G05F1/70

    CPC分类号: H02J3/1828 Y02E40/30

    摘要: A system and method for coordinating shunt reactance switching in a system with a transformer having a primary voltage and a secondary voltage for supplying low voltage power to a load. Voltage and power meters are provided for measuring the primary voltage and the reactive power flowing to the load. A programmable logic controller receives as one set of inputs measurements of primary voltage and reactive power flowing to the load, and as another set of inputs, predetermined ranges establishing high and low limits for the primary voltage and the reactive power. Based on these inputs, the programmable logic controller connects or disconnects at least one shunt reactance to maintain the load voltage substantially constant.

    摘要翻译: 一种用于协调系统中具有初级电压和次级电压的变压器的并联电抗切换的系统和方法,用于向负载提供低电压电力。 电压和功率计用于测量初级电压和流向负载的无功功率。 可编程逻辑控制器接收作为一组输入的测量的初级电压和无功功率的测量流向负载,并且作为另一组输入,预定范围建立初级电压和无功功率的高限和低限。 基于这些输入,可编程逻辑控制器连接或断开至少一个并联电抗以维持负载电压基本恒定。

    INTRA-AREA MASTER REACTIVE CONTROLLER FOR TIGHTLY COUPLED WINDFARMS
    7.
    发明申请
    INTRA-AREA MASTER REACTIVE CONTROLLER FOR TIGHTLY COUPLED WINDFARMS 有权
    内部区域主要反应控制器,用于轻松耦合的WINDFARMS

    公开(公告)号:US20100025994A1

    公开(公告)日:2010-02-04

    申请号:US12181658

    申请日:2008-07-29

    IPC分类号: F03D7/00

    摘要: A wind turbine generator control system is provided for controlling output of a plurality of tightly-coupled windfarms connected at a point of common coupling with a power system grid. A master reactive control device employs algorithms whose technical effect is to coordinate the real power, reactive power and voltage output of the multiple windfarms. The controller incorporates a reactive power regulator that can be used to regulate reactive power, power factor or voltage at the point of common coupling and an active power regulator that can be used to regulate real power at the point of common coupling; such that each windfarm is not asked to contribute or violate its own operating capability.

    摘要翻译: 提供一种风力发电机控制系统,用于控制在与电力系统电网的公共耦合点连接的多个紧密耦合的风电场的输出。 主反应控制装置采用算法,其技术作用是协调多个风电场的有功功率,无功功率和电压输出。 控制器包含一个无功功率调节器,可用于调节公共耦合点处的无功功率,功率因数或电压,以及可用于调节公共耦合点实际功率的有功功率调节器; 使得每个风电场不被要求贡献或违反其自身的运行能力。

    Wind turbine and method for operating same
    8.
    发明授权
    Wind turbine and method for operating same 有权
    风力发电机及其运行方法

    公开(公告)号:US07586206B2

    公开(公告)日:2009-09-08

    申请号:US12346248

    申请日:2008-12-30

    IPC分类号: F03B13/10

    摘要: A wind turbine includes an asynchronous generator having a rotor and a stator, means for determining an actual torque-speed curve of the generator, means for determining an actual grid frequency, and means for determining a shifted torque-speed curve in response to the determined actual grid frequency if the determined actual grid frequency is higher than a predetermined upper frequency limit or lower than a predetermined lower frequency limit. The means for determining a shifted torque-speed curve is further adapted to determine the shifted torque-speed curve such that an increase in the rotor voltage of said generator rotor is counteracted when shifting the actual torque-speed curve to the shifted torque-speed curve. The wind turbine further includes means for shifting the actual torque-speed curve of the generator to the shifted torque-speed curve.

    摘要翻译: 风力涡轮机包括具有转子和定子的异步发电机,用于确定发电机的实际扭矩 - 速度曲线的装置,用于确定实际电网频率的装置,以及用于根据所确定的确定实际电网频率来确定移动的转矩 - 速度曲线的装置 如果所确定的实际电网频率高于预定的上限频率或低于预定的下限频率,则实际电网频率。 用于确定移动的转矩 - 速度曲线的装置还适于确定移动的转矩 - 速度曲线,使得当将实际转矩 - 速度曲线移动到移动的转矩 - 速度曲线时,所述发电机转子的转子电压的增加被抵消 。 风力涡轮机还包括用于将发电机的实际扭矩 - 速度曲线转换到移动的扭矩 - 速度曲线的装置。

    WIND TURBINE AND METHOD FOR OPERATING SAME
    9.
    发明申请
    WIND TURBINE AND METHOD FOR OPERATING SAME 有权
    风力涡轮机及其运行方法

    公开(公告)号:US20090108583A1

    公开(公告)日:2009-04-30

    申请号:US12346248

    申请日:2008-12-30

    IPC分类号: H02P9/04

    摘要: A wind turbine includes an asynchronous generator having a rotor and a stator, means for determining an actual torque-speed curve of the generator, means for determining an actual grid frequency, and means for determining a shifted torque-speed curve in response to the determined actual grid frequency if the determined actual grid frequency is higher than a predetermined upper frequency limit or lower than a predetermined lower frequency limit. The means for determining a shifted torque-speed curve is further adapted to determine the shifted torque-speed curve such that an increase in the rotor voltage of said generator rotor is counteracted when shifting the actual torque-speed curve to the shifted torque-speed curve. The wind turbine further includes means for shifting the actual torque-speed curve of the generator to the shifted torque-speed curve.

    摘要翻译: 风力涡轮机包括具有转子和定子的异步发电机,用于确定发电机的实际扭矩 - 速度曲线的装置,用于确定实际电网频率的装置,以及用于根据所确定的确定实际电网频率来确定移动的转矩 - 速度曲线的装置 如果所确定的实际电网频率高于预定的上限频率或低于预定的下限频率,则实际电网频率。 用于确定移动的转矩 - 速度曲线的装置还适于确定移动的转矩 - 速度曲线,使得当将实际转矩 - 速度曲线移动到移动的转矩 - 速度曲线时,所述发电机转子的转子电压的增加被抵消 。 风力涡轮机还包括用于将发电机的实际扭矩 - 速度曲线转换到移动的扭矩 - 速度曲线的装置。