电气传动2019，Vol.49Issue(8)：93-96,4.DOI:10.19457/j.1001-2095.dqcd18759
光伏系统电压跌落高速检测算法研究
Research on Photovoltaic System Voltage Sag High Speed Detection Algorithm
摘要
Abstract
Single phase photovoltaic inverter system can meet the voltage sag phenomenon,the lack of visual in the changing rule of its AC output voltage signal makes the detection difficult. On the basis of the traditional algorithms of amplitude,the forward difference amplitude algorithm was increased. The principle of the differential amplitude algorithm was to substract the walue obtained at the corresponding time of the previous cycle from the value obtained by the traditional algorithm at the current time,and the difference was the value of the differential amplitude algorithm. By comprehensive analysis of the traditional amplitude algorithm and forward difference amplitude algorithm results,the voltage sag could be judged in time and accurately. Compared with the traditional amplitude algorithm,the proposed algorithm can significantly improve the real-time and accuracy of detection,the experiments prove the validity of the scheme described.关键词
逆变器/光伏系统/电压跌落/检测方法Key words
inverter/photovoltaic systems/voltage sag/detection method分类
信息技术与安全科学引用本文复制引用
周成虎,黄全振,袁勋,周诗洁,李雪健..光伏系统电压跌落高速检测算法研究[J].电气传动,2019,49(8):93-96,4.基金项目
国家自然科学基金项目(61403123) （61403123）
河南省科技攻关项目(182102310879) （182102310879）
