Voltage control at windfarms
    1.
    发明授权
    Voltage control at windfarms 有权
    风电场的电压控制

    公开(公告)号:US08041465B2

    公开(公告)日:2011-10-18

    申请号:US12248862

    申请日:2008-10-09

    IPC分类号: F03D9/00

    摘要: A voltage control arrangement for a system of multiple windfarms with transmission lines. Voltage is regulated at a point of regulation on the system, such as a high voltage substation or other system bus. Regulation is achieved at the point of regulation by sensing the voltage, comparing to a reference voltage, and adjusting the reactive power output of the wind turbines and other equipment in the system. The regulation point may be shifted to another point if needed to respect voltage limits at that points of the system after attempting to shift reactive load to restore voltage within limits at the other points in the system. The reference voltage may be adjusted to minimize losses for the system of multiple windfarms and transmission lines. A loss optimizing algorithm is applied to the combined multiple windfarm and transmission line to shift reactive load among local windfarms to minimize losses and to shift reactive load among individual wind turbines within an individual windfarm.

    摘要翻译: 一种用于具有传输线的多个风电场系统的电压控制装置。 电压在系统的调节点进行调节,例如高压变电站或其他系统总线。 通过感应电压,与参考电压相比,调节系统中风力发电机和其他设备的无功功率输出,在调节点实现调节。 如果需要,在试图移动无功负载以在系统中的其他点的限度内恢复电压时,如果需要,调节点可能转移到另一点。 可以调整参考电压以最小化多个风电场和传输线系统的损耗。 损失优化算法被应用于组合的多个风电场和传输线,以在局部风电场之间移动无功负载,以最小化损耗并且在个别风电场内的单个风力涡轮机之间移动无功负载。

    Optimizing system loss for a system of multiple windfarms
    3.
    发明授权
    Optimizing system loss for a system of multiple windfarms 有权
    优化多个风电场系统的系统损耗

    公开(公告)号:US08290634B2

    公开(公告)日:2012-10-16

    申请号:US13234417

    申请日:2011-09-16

    IPC分类号: H02P9/04

    摘要: A voltage control arrangement for a system of multiple windfarms with transmission lines. Voltage is regulated at a point of regulation on the system, such as a high voltage substation or other system bus. Regulation is achieved at the point of regulation by sensing the voltage, comparing to a reference voltage, and adjusting the reactive power output of the wind turbines and other equipment in the system. The regulation point may be shifted to another point if needed to respect voltage limits at that points of the system after attempting to shift reactive load to restore voltage within limits at the other points in the system. The reference voltage may be adjusted to minimize losses for the system of multiple windfarms and transmission lines. A loss optimizing algorithm is applied to the combined multiple windfarm and transmission line to shift reactive load among local windfarms to minimize losses and to shift reactive load among individual wind turbines within an individual windfarm.

    摘要翻译: 一种用于具有传输线的多个风电场系统的电压控制装置。 电压在系统的调节点进行调节,例如高压变电站或其他系统总线。 通过感应电压,与参考电压相比,调节系统中风力发电机和其他设备的无功功率输出,在调节点实现调节。 如果需要,在试图移动无功负载以在系统中的其他点的限度内恢复电压时,如果需要,调节点可能转移到另一点。 可以调整参考电压以最小化多个风电场和传输线系统的损耗。 损失优化算法被应用于组合的多个风电场和传输线,以在局部风电场之间移动无功负载,以最小化损耗并且在个别风电场内的单个风力涡轮机之间移动无功负载。

    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。

    Magnetic field minimization in power transmission
    5.
    发明授权
    Magnetic field minimization in power transmission 失效
    电力传输中的磁场最小化

    公开(公告)号:US5360998A

    公开(公告)日:1994-11-01

    申请号:US677090

    申请日:1991-03-29

    申请人: Reigh A. Walling

    发明人: Reigh A. Walling

    IPC分类号: H04B3/30

    CPC分类号: H04B3/30

    摘要: A series-capacitance compensated shielding circuit is located physically adjacent and parallel to a polyphase power transmission line for the purpose of partially cancelling the electromagnetic fields created by current flow through the transmission line. The shielding circuit forms a loop circuit around substantially the entire transmission line or a portion thereof, and is positioned such that a current is induced therein by the magnetic field produced by the alternating currents in the transmission line. Such induced current is tuned by the series capacitance to produce an optimized cancelling magnetic field, thus reducing the net electromagnetic fields created by the power lines along a right-of-way.

    摘要翻译: 串联电容补偿屏蔽电路位于与多相电力传输线物理相邻并且平行的位置,以便部分消除通过传输线的电流产生的电磁场。 屏蔽电路在基本上整个传输线或其一部分周围形成环路电路,并且被定位为使得由传输线中的交流电产生的磁场在其中感应电流。 这种感应电流被串联电容调谐以产生优化的消除磁场,从而减少电力线沿着右路产生的净电磁场。

    VOLTAGE CONTROL AT WINDFARMS
    6.
    发明申请
    VOLTAGE CONTROL AT WINDFARMS 有权
    电压控制在WINDFARMS

    公开(公告)号:US20120010756A1

    公开(公告)日:2012-01-12

    申请号:US13234417

    申请日:2011-09-16

    IPC分类号: G06F1/28

    摘要: A voltage control arrangement for a system of multiple windfarms with transmission lines. Voltage is regulated at a point of regulation on the system, such as a high voltage substation or other system bus. Regulation is achieved at the point of regulation by sensing the voltage, comparing to a reference voltage, and adjusting the reactive power output of the wind turbines and other equipment in the system. The regulation point may be shifted to another point if needed to respect voltage limits at that points of the system after attempting to shift reactive load to restore voltage within limits at the other points in the system. The reference voltage may be adjusted to minimize losses for the system of multiple windfarms and transmission lines. A loss optimizing algorithm is applied to the combined multiple windfarm and transmission line to shift reactive load among local windfarms to minimize losses and to shift reactive load among individual wind turbines within an individual windfarm.

    摘要翻译: 一种用于具有传输线的多个风电场系统的电压控制装置。 电压在系统的调节点进行调节,例如高压变电站或其他系统总线。 通过感应电压,与参考电压相比,调节系统中风力发电机和其他设备的无功功率输出,在调节点实现调节。 如果需要,在试图移动无功负载以在系统中的其他点的限度内恢复电压时,如果需要,调节点可能转移到另一点。 可以调整参考电压以最小化多个风电场和传输线系统的损耗。 损失优化算法被应用于组合的多个风电场和传输线,以在局部风电场之间移动无功负载,以使损失最小化并且在单个风电场内的各个风力涡轮机之间移动无功负载。

    VOLTAGE CONTROL AT WINDFARMS
    7.
    发明申请
    VOLTAGE CONTROL AT WINDFARMS 有权
    电压控制在WINDFARMS

    公开(公告)号:US20100094474A1

    公开(公告)日:2010-04-15

    申请号:US12248862

    申请日:2008-10-09

    IPC分类号: G05B13/04 G06F1/28

    摘要: A voltage control arrangement for a system of multiple windfarms with transmission lines. Voltage is regulated at a point of regulation on the system, such as a high voltage substation or other system bus. Regulation is achieved at the point of regulation by sensing the voltage, comparing to a reference voltage, and adjusting the reactive power output of the wind turbines and other equipment in the system. The regulation point may be shifted to another point if needed to respect voltage limits at that points of the system after attempting to shift reactive load to restore voltage within limits at the other points in the system. The reference voltage may be adjusted to minimize losses for the system of multiple windfarms and transmission lines. A loss optimizing algorithm is applied to the combined multiple windfarm and transmission line to shift reactive load among local windfarms to minimize losses and to shift reactive load among individual wind turbines within an individual windfarm.

    摘要翻译: 一种用于具有传输线的多个风电场系统的电压控制装置。 电压在系统的调节点进行调节,例如高压变电站或其他系统总线。 通过感应电压,与参考电压相比,调节系统中风力发电机和其他设备的无功功率输出,在调节点实现调节。 如果需要,在试图移动无功负载以在系统中的其他点的限度内恢复电压时,如果需要,调节点可能转移到另一点。 可以调整参考电压以最小化多个风电场和传输线系统的损耗。 损失优化算法被应用于组合的多个风电场和传输线,以便在局部风电场之间移动无功负载,以最小化损失并且在单个风电场内的各个风力涡轮机之间移动无功负载。

    WINDFARM COLLECTOR SYSTEM LOSS OPTIMIZATION
    8.
    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。