基于模糊PID控制的开关电源并联供电系统设计

在建立了并联开关电源变换器模型的基础上,分析并联均流的原理及方法,用模糊参数自整定PID控制方法设计了一种有效的控制器,能够合理地处理好精度和速度的矛盾。基于此方法,设计了一种以dsPIC单片机为控制核心的并联供电系统,利用dsPIC单片机的高速运算能力,完成全数字双闭环控制。实验结果表明,系统负载均流性能较好,响应速度快。

Parallel switching power system design based on fuzzy PID

In this paper,based on the parallel switching power converter model and the analysis of both parallel flow theory and method,an effective controller is design by using the fuzzy parameter self-tuning PID control,which can reasonably control its accuracy and speed.Based on this method,parallel power supply system is designed based on a dsPIC microcontroller,which uses the high-speed computing power of dsPIC MCU to complete the all-digital dual-loop control.Experimental results show that has the features of better system load-sharing performance and fast response.