地区电网稳定和主设备保护

Area Power Net Stability and Main Equipment Protection

着重分析了地区电网振荡特点、原因、规律以及与继电保护的关系。提出改进、完善继电保护的措施，重点进行35kV母差保护的选型分析。

?This paper analyses the features, causes and patterns of area power netoscillation and its relation with protective relay. The authors put forward the measuresto improve relay protection based on the analysis of 35 kV bus deferential protectiverelay type selection.