一种并网逆变器直流电容容值辨识方法

朱城昊, 王晗, 孙国歧, 魏晓宾, 王富文, 蔡旭

An Identification Method for DC-Link Capacitor Capacitance of Grid Connected Inverter

ZHU Chenghao, WANG Han, SUN Guoqi, WEI Xiaobin, WANG Fuwen, CAI Xu

表3 电容预测值与误差

Tab.3 Prediction values of capacitance and its error

测试组号 电容真实值/mF 电容预测值/mF 误差/% 1 1.15040 1.1196 0.938 2 1.19154 1.2029 0.950 3 1.23243 1.2399 0.609 4 1.27497 1.2629 0.950 5 1.31783 1.3056 0.927 6 1.36036 1.3650 0.340 7 1.40328 1.4117 0.601