摘要
Abstract
In recent years, with the eco-friendly and inexhaustible characteristics, renewable energy generation system becomes one of the hot topics in the world.But there are some limitations, such as low voltage ride through.This pa-per proposes a control method using hybrid energy storage system to solve the power quality problem of low voltage ride through in photovoltaic power stations.Through moving average function, DC component of the fluctuating power in LVRT is extracted.DC graded component is absorbed by the storage batteries, through utilizing the different factors of lead-acid battery and super capacitor.Super capacitors are used to absorb AC component to maintain the DC bus volt-age .This method can help photovoltaic power stations meet the requirments for low voltage ride through and extend the life of batteries.Based on computer communication technology, the SOC of batteries can be set among a proper range to absorb or release energy.The simulation and experiment results of the proposed control method are shown in the end and the SOC management program is written in C#.The results verify the feasibility and reliability of the proposed system.关键词
计算机网络技术/混合储能系统/光伏电站/低电压穿越/滑动平均滤波器Key words
computer network technique/hybrid energy storage system/photovoltaic power station/low voltage ride through/moving average filter分类
信息技术与安全科学
