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电网技术  2011 

开关试验对电力系统的影响及其仿真

, PP. 83-88

Keywords: 开关试验站,电压暂降,机电–电磁混合仿真,继电保护

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Abstract:

分析了开关试验站的工作原理和开关试验对电网的影响,建立了2013年华中电网机电暂态仿真模型和开关试验站电磁暂态仿真模型,利用电力系统全数字实时仿真装置(advanceddigitalpowersystemsimulator,ADPSS)进行机电–电磁混合仿真。由仿真结果可知,应禁止进行造成母线瞬时电压下降值大于15%母线额定电压的试验项目;开关网络试验项目不会造成邻近系统线路保护、母线保护、主变保护、电容器保护动作,但建议在保证灵敏度的前提下,适当提高母线差动保护和失灵保护的负序电压定值;各类开关试验项目均不会造成机组强励磁动作。

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