| 引用本文: | 孔涛,王洪涛,刘玉田,杨明辉,牟宏.500 kV-220 kV电磁环网开环研究[J].电力自动化设备,2003,(12):13-16 |
| .On opening 500 kV-220 kV electromagnetic loop circuit[J].Electric Power Automation Equipment,2003,(12):13-16 |
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| 摘要: |
| 随着500kV电网的建设，许多地区出现了500kV-220kV高低压电磁环网，有些因成为安全隐患而需要断开。分析了500kV线路开断引起220kV系统过负荷等电磁环网的安全隐患，给出了电磁环网是否开环应考虑的安全稳定性和经济性等因素。提出判断500kV—220kV电磁环网是否应该开环的一般步骤，并以山东北部电网为例说明了这些问题。 |
| 关键词: 电磁环网 安全稳定性 输电网络 |
| DOI： |
| 分类号:TM712 |
| 基金项目:国家电力公司资助项目，SP11-2001-04-50-10， |
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| On opening 500 kV-220 kV electromagnetic loop circuit |
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KONG Tao1 WANG Hong-tao1 LIU Yu-tian1 YANG Ming-hui 2 MU Hong 2
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| Abstract: |
| With the development of power transmission networks,electromagnetic loop circuits of 500 kV-220 kV appear in many places,some of which should be opened because they threaten the power system security. The insecurity, such as 220 kV-system overload caused by opening 500 kV-system,is analyzed. The security and stability of power system and the economic factors should be considered before breaking the electromagnetic loop circuit. A general procedure whether a loop circuit should be opened is proposed. The north power system of Shandong is analyzed as an example. This project is supported by State Power Corporation of China(SP11-2001- 04 -50 -10). |
| Key words: electromagnetic loop circuit,security and stability,power transmission network, |
