基于改进粒子群算法的LC型逆变器PI参数优化

Optimization of PI Parameters of LC Inverter Based on Improved Particle Swarm Algorithm

对于三相LC型逆变系统,现有的双闭环PI控制中参数选取不理想,系统缺乏一定的稳定裕度,适应性不强。针对三相LC型逆变器双闭环控制PI参数整定问题,提出了一种基于改进粒子群(PSO)算法的优化方法,最后通过MATLAB/Simulink仿真试验,验证了所提方法的有效性和可行性。

For the three-phase LC-type inverter system,the parameter selection in the existing double closed-loop PI control is not ideal,the system lacks a certain stability margin,and the adaptability is not strong.Aiming at the problem of PI parameter tuning for three-phase LC inverter double closed-loop control,an optimization method based on improved particle swarm(PSO)algorithm is proposed.Finally,the MATLAB/Simulink simulation test verifies the effectiveness and feasibility of the proposed method.