摘要
逆变电源系统结构特殊且具有较强的非线性和参数时变性,尤其在非线性负载下采用常规控制难以获得理想的控制效果。提出一种基于模糊自适应整定PID控制策略的逆变电源控制方案,该方案将模糊控制与PID控制的优势相结合,实时对PID参数进行在线调整。通过Matlab/Simulink对系统进行了仿真和验证,并与常规PID控制结果进行了对比和分析。实验结果表明,模糊自适应整定PID控制很好地实现了控制目的,并且提高了输出波形的质量,控制品质明显优于常规PID控制方法。
As the sine wave inverter is highly nonlinear and has variable parameters due to its special structure of complicated multi - stage power converter,the perfect control can not be obtained with conventional control methods especially under nonlinear rectifier loads. This paper introduces a control method based on fuzzy self - adaptive PID control strategy to inverter. This method combines the advantage of fuzzy control and PID control,and accomplishes online auto - tuning PAD parameters adjust. In the emulational experiments by making use of Matlab/Simulink, the results show that this method is feasible and control parameter in this system surpassed the conventional PID control system.
出处
《现代电子技术》
2007年第23期123-125,共3页
Modern Electronics Technique
