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1. 发明申请

US20140240880A1 COORDINATED CONTROL METHOD FOR POWER DISTRIBUTION SYSTEM WITH DC BUS ELECTRIFICATION SCHEME AND APPARATUS THEREOF 审中-公开
标题翻译：具有直流总线电力方案的配电系统的协调控制方法及其设备
公开(公告)号：US20140240880A1
公开(公告)日：2014-08-28
申请号：US14354670
申请日：2012-04-16
申请人： Yao Chen , Guoju Zhang , Jiuping Pan , Lars Gertmar , Rongrong Yu , Erich Suter
发明人： Yao Chen , Guoju Zhang , Jiuping Pan , Lars Gertmar , Rongrong Yu , Erich Suter
IPC分类号： H02H7/22
CPC分类号： H02H7/22 , H02J1/00 , H02J11/00
摘要： The present invention discloses a coordinated control method for power distribution system with DC bus electrification scheme and apparatus thereof. The method comprises: detecting what kind of disturbances occurs, and at least one of following steps: restoring the voltages of the failed DC buses if power loss is detected on the DC buses due to temporary or permanent failures of upstream power supplies; controlling the voltage of the abnormal DC buses if overvoltage or under-voltage is detected on the DC buses due to internal or external disturbances; and supporting the voltages of the abnormal AC buses if overvoltage or under-voltage is detected on the AC buses due to internal or external disturbances. The methods and apparatus can further improve the fault-ride-through capability for power plant under external or internal disturbances, and facilitate smooth automatic switching process between two DC buses etc.
摘要翻译：本发明公开了一种具有DC总线通电方案及其装置的配电系统的协调控制方法。该方法包括：检测发生什么样的干扰，以及至少一个以下步骤：由于上游电源的暂时或永久性故障，在DC总线上检测到功率损耗时，恢复故障的直流总线的电压; 由于内部或外部干扰，在直流母线上检测到过电压或欠电压时，控制异常直流母线的电压; 并且由于内部或外部干扰，在AC总线上检测到过电压或欠压时，支持异常AC总线的电压。该方法和装置可以进一步提高发电厂在外部或内部干扰下的故障穿越能力，并促进两台直流母线之间的平滑自动切换过程。

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