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电网技术  2007 

电磁环网中无功环流的分析与控制

, PP. 63-67

Keywords: 电磁环网,无功环流,安全稳定性,西北电网

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Abstract:

电磁环网是在电网发展过程中产生和消亡的一种特殊的网架结构。多年来,对电磁环网的研究多以安全控制为目标,分析其是否开环运行,而对电磁环网合环运行的功率控制研究较少,对其无功功率控制的研究更为少见。文章针对电磁环网中出现的无功环流问题,分析了其产生机理和控制措施,并将研究成果用于指导西北电网刘家峡—炳灵330/220kV电磁环网无功环流的控制中。研究表明,对电磁环网中的无功环流进行控制可显著降低网损,提高电网经济效益。该研究有望对我国750kV和特高压电网发展过程中形成的电磁环网的安全、经济运行起到一定的指导作用。

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