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Analysis of Switching Overvoltage in Regional Grid with Small Hydropower Plants
Electric Power College, South China University of Technology, Guangzhou, China
Electric Power College, South China University of Technology, Guangzhou, China
- 1 Electric Power College, South China University of Technology, Guangzhou, China
- 2 Electric Power College, South China University of Technology, Guangzhou, China
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Abstract
Present-day small hydropower plants (SHPs) have a large development potential because of the increasing interest in renewable resources and distributed energy generation, therefore, there are many SHPs in places of China where are rich in water resources. However, it has caused overvoltages in the distribution network, and which is even worse for the switching overvoltage such as isolated network operation, changing power supply path. The simple network model is used to analyze the reasons of the switching overvoltage, and the simulation software DIgSILENT/PowerFactory is used to check out the results of the theoretical analysis.
KeywordsSmall HydropowerIsolated OperationChanging Power Supply PathSwitching Overvoltage
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