| 引用本文: | 叶华,刘玉田,牛新生.500 kV-220 kV电磁环网开环方案模糊综合评价[J].电力自动化设备,2006,(7):1-5 |
| .Fuzzy comprehensive evaluation of opening schemes for 500 kV-220 kV electromagnetic loop[J].Electric Power Automation Equipment,2006,(7):1-5 |
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| 摘要: |
| 用层次分析法建立模糊综合评价模型的指标体系。对评价指标体系指标层的因素分别引入行为指标,包括线路或变压器过负荷指标、母线电压越限指标、最大发电机功角差指标、开关设备投资指标以及系统网损指标。隶属度函数描述了各行为指标对评价结果的不确定性。模糊综合评价的优先度综合考虑了各种因素的影响,对电磁环网开环方案作出了定量、全面、综合的评价。基于模糊综合评价模型,开发了电磁环网开环方案的模糊综合评价程序,并应用于电网各区域内(间)电磁环网开环方案的评估。考虑4种开环方案,进行N-1静态安全分析、暂态稳定性分析、短路计算以及系统网损计算,经模糊综合评价后依据优先度判别可行性。 |
| 关键词: 电磁环网,层次分析,模糊综合评价 |
| DOI： |
| 分类号:TM732 |
| 基金项目:教育部新世纪优秀人才支持计划资助2005[35]~~ |
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| Fuzzy comprehensive evaluation of opening schemes for 500 kV-220 kV electromagnetic loop |
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YE Hua LIU Yu-tian NIU Xin-sheng
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| Abstract: |
| The analytic hierarchy process is used to establish the index system of the fuzzy comprehensive evaluation model.Performance indices corresponding to elements in the index hierarchy are introduced,including the overload of lines or transformers,the busbar voltage violation,the maximal generator power angle error,the device investment and the system power loss.Membership functions denote the uncertainty of performance indices with respect to evaluation results.Considering various factors comprehensively,the priority of fuzzy comprehensive evaluation represents the quantitative and comprehensive evaluation of schemes.Based on the model,the fuzzy comprehensive evaluation program for electromagnetic loop opening schemes is developed and used to evaluate opening schemes of regional power networks.Four opening schemes are compared.N-1 static security analysis,transient stability analysis,short-circuit and system power loss calculations are carried out for each scheme.Their feasibilities are distinguished by priorities of the fuzzy comprehensive evaluation. |
| Key words: electromagnetic loop,analytic hierarchy process,fuzzy comprehensive evaluation |
