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电网技术  2007 

电磁环网条件下西北750kV电网运行方式的研究

, PP. 33-38

Keywords: 西北750,kV电网,运行方式,电磁环网,输送极限,潮流

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Abstract:

随着西北750kV电网的建成投运,原有330kV网架将与新出现的750kV线路形成电磁环网。文中研究了2008年底西北750kV骨干网架初步形成后,750/330kV电磁环网运行方式对系统安全稳定性的影响。静态安全分析和稳定计算结果表明,在未形成坚强的750kV网架结构前,合环运行比解环方式更有利于提高西北电网输送能力和稳定水平。针对合环运行可能出现的系统振荡、输送受限等问题,提出通过加强安稳装置配置、研制遮断容量更大的断路器、优化运行方式和网架结构等措施来保证系统的稳定运行。

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