摘要
针对光伏电池的输出特性,以Boost电路为硬件平台分析了直接控制、PI控制这两种扰动观察法的控制方法的原理。通过Simulink建立电路仿真模型,对扰动观察法两种控制方法的最大功率点跟踪效果进行对比。以1.5 kW的两级光伏并网逆变器实验样机完成相关实验,实验波形和分析证明了扰动观察法的控制方法的有效性。
According to the output characteristics of photovoltaic cells, theory analysis of Perturb & Observe (P&O) control methods including direct control and PI control was made based on the hardware platform of Boost circuit. Then simulation models of P&O on Boost circuit were established by Simulink. Through the simulation result, comparison of the two P&O control methods was carried out. Further, the developed 1.5 kW dual-stage photovohaic grid-connected inverter based on Boost circuit was applied for experiment to verify the effectiveness of the presented P&O control methods.
出处
《电气传动》
北大核心
2013年第3期40-44,共5页
Electric Drive
基金
广东省部产学研(2011B090400261)
广东省科技攻关(2010B010900003)
江门市科技计划(2011010012417)