现代电子技术
現代電子技術
현대전자기술
Modern Electronics Technique
2015年
19期
110-113
,共4页
赵文春%王博%刘胜道%郑云波
趙文春%王博%劉勝道%鄭雲波
조문춘%왕박%류성도%정운파
移相全桥%DC/DC变换器%PID控制%模糊控制
移相全橋%DC/DC變換器%PID控製%模糊控製
이상전교%DC/DC변환기%PID공제%모호공제
phase-shifted full-bridge%DC/DC converter%PID control%fuzzy control
针对普通PID控制难以应付移相全桥DC/DC变换器时变非线性的不足,提出采用模糊自适应PID控制的方法。该方法基于误差信号,对应模糊控制规则得出PID参数的实时修改量,对复杂系统具有一定的自适应性。利用Matlab/Simulink工具箱进行了普通PID控制和模糊自适应PID控制的系统建模,并对输入电压和负载突变情况进行了仿真。仿真结果验证了系统的可行性,通过对比表明模糊自适应PID控制在启动、负载突变等情况下动、静态性能均优于普通PID控制,提高了系统性能。
針對普通PID控製難以應付移相全橋DC/DC變換器時變非線性的不足,提齣採用模糊自適應PID控製的方法。該方法基于誤差信號,對應模糊控製規則得齣PID參數的實時脩改量,對複雜繫統具有一定的自適應性。利用Matlab/Simulink工具箱進行瞭普通PID控製和模糊自適應PID控製的繫統建模,併對輸入電壓和負載突變情況進行瞭倣真。倣真結果驗證瞭繫統的可行性,通過對比錶明模糊自適應PID控製在啟動、負載突變等情況下動、靜態性能均優于普通PID控製,提高瞭繫統性能。
침대보통PID공제난이응부이상전교DC/DC변환기시변비선성적불족,제출채용모호자괄응PID공제적방법。해방법기우오차신호,대응모호공제규칙득출PID삼수적실시수개량,대복잡계통구유일정적자괄응성。이용Matlab/Simulink공구상진행료보통PID공제화모호자괄응PID공제적계통건모,병대수입전압화부재돌변정황진행료방진。방진결과험증료계통적가행성,통과대비표명모호자괄응PID공제재계동、부재돌변등정황하동、정태성능균우우보통PID공제,제고료계통성능。
Since the traditional PID control is hard to solve time?varying nonlinear problem of phase?shifted full?bridge DC/DC converter,the method of using self?adaptive fuzzy?PID control is proposed. The real?time modifiers of PID parameters are ob?tained by fuzzy control rules corresponding to error signal. This method has certain adaptivity to complex system. The traditional PID control and self?adaptive fuzzy?PID control were conducted with system modeling by Matlab/Simulink toolbox,and the input voltage and load changes were simulated. The simulation results verify that this system is feasible. The static and dynamic perfor?mances of self?adaptive fuzzy?PID control are better than the traditional PID control in the situation of start?up and load changes. System performances were improved.