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首页> 外文会议>2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies >Application effect evaluation of demonstration project of thyristor-controlled phase shifting transformer in 500kV grid
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Application effect evaluation of demonstration project of thyristor-controlled phase shifting transformer in 500kV grid

机译：晶闸管控制移相变压器示范工程在500kV电网中的应用效果评价

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摘要

The considerably uneven distribution of power flow on 500kV Anhui-Jiangsu cross province interface during peak hours may contribute to overload conditions in case of outages on one of the four transmission lines of this interface. Export of electric power from Anhui province through this inter face to Yangze Delta load center is restricted to 4800MW. Installation of thyristor-controlled phase shifting transformer (TCPST) on each of the 500kV cross province transmission lines from Dangtu substation to Huifengshan substation is reviewed to be effective solution for interface power flow control under various possible grid operation conditions. This paper evaluates the application effect of the demonstration project, which involves power flow control impact on the interface and neighboring system, short circuit current limiting effect with respect to the impedance of TCPST under varying phase shifting angle as well as system stability performance related issues. The evaluation is expected to provide theoretic basis for the implementation of the demonstration project.
机译：在高峰时段，安徽-江苏跨省500kV跨界接口上的潮流分布相当不均匀，如果该接口的四条传输线之一中断，可能会导致过载情况。通过此接口从安徽省向长江三角洲负荷中心的电力输出限制为4800MW。从当涂变电站到惠丰山变电所的每条500kV跨省输电线路上，均安装了晶闸管控制的移相变压器（TCPST），这是在各种可能的电网运行条件下进行接口潮流控制的有效解决方案。本文评估了该示范项目的应用效果，其中包括功率流控制对接口和邻近系统的影响，在变相移角下针对TCPST阻抗的短路电流限制效应以及与系统稳定性能相关的问题。该评估有望为示范项目的实施提供理论依据。

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