# 含多小水电的配电网电压分析与控制策略研究Research on Analysis and Strategy of Voltage in Distribution Networks with Multi-Small Hydropower

Abstract: Traditional operation mode of distribution network was altered with the integration of small hy-dropower in it, which causes the problem that the voltage of distribution network drops in dry season, increases in wet season, and the voltage fluctuates greatly with seasons especially at the end of the line. Analysis on voltage problem in distribution network in this paper draws the conclusion that in wet season, the voltage rises since the power flow contrary sends to the main network when the small hydropower station’s generating capacity increases. This paper also presents a method of voltage control by changing the distribution network structure, combining the method of installing parallel compensating devises, which can improve the quality of voltage in distribution network.

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