基于遗传算法的PFC控制电路电压环的优化设计

The Design of PFC Control Circuit in Voltage Loop Compensating Network Based on GA

针对标准遗传算法易发生未成熟收敛和收敛速度过慢的缺陷,提出了遗传算法的改进策略。尝试应用改进的遗传算法优化设计PFC控制电路的控制参数,在控制电路小信号模型的基础上,分析电压控制环的主要作用,选择合适的适应度函数。

This paper brings forward a modified strategy for the genetic algorithm aimed at defects of the standard genetic algorithm that immaturity convergence often occurs and convergence rate is too slow. This paper attempts to apply the modified genetic algorithm to design control parameters, and bases on the small signal model of the control circuit to analyze the main functions of the current control loop, respectively selects the appropriate fitness function.