模糊PID控制技术在单级高PFC拓扑光伏模拟器设计中的研究应用

摘要

研究一种采用基于模糊PID控制的单级高PFC(power factor correction)拓扑光伏电池模拟器.通过这种变流器拓扑可同时实现高功率因数校正以及对实际光伏电池输出I-V特性曲线的跟踪模拟.采取Psim和Matlab/Simulink联合仿真对所设计的模拟器系统进行了仿真分析与研究.仿真结果表明,无论是在静态条件还是外界条件动态变换下该模拟器系统及其控制算法具有快速响应速度和高控制精度.与普通模糊控制算法进行了仿真对比分析,结果显示该算法具有更好的适用性.%In this paper, a single high PFC topological photovoltaic cell simulator based on fuzzy-PID control is studied.Through this converter topology can simultaneously achieve high power factor correction, as well as the actual PV cell output I-V characteristic curve tracking simulation.The simulation analysis and research for the designed simulator system are carried out by using Psim and Matlab/Simulink joint simulation.The simulation results show that the simulator system and its control algorithm have fast response speed and high control precision both under the static condition and the external condition dynamic transformation.At last, compared with the ordinary fuzzy control, the proposed algorithm has better adaptability.