本文介绍了电压模式控制(VMC)dc-dc开关转换器的不同补偿方案的设计程序。 研究了比例积分微分(PID)控制器,模糊逻辑控制器(FLC),PID和FLC的并行组合以及由PI控制器调整的FLC。 MATLAB软件用于对每种补偿器进行电仿真时描绘降压转换器的性能,并使用其等效传递函数(TF)对其进行分析建模。 对比研究结果强调,在各种工况变化下,PI控制器调节的FLC均具有较快的瞬态响应,最小的稳态误差和良好的抗扰性,优于其他控制策略。 因此,它实现了最严格的输出电压调节。
This paper represents the design procedures of different compensation schemes for voltage mode controlled(VMC) dc–dc switching converters. Proportional integral derivative (PID) controllers, Fuzzy logic controllers(FLC), parallel combination of PID and FLC, and FLC tuned by PI controller have been investigated. MATLABsoftware is used to depict the buck converter performance with each compensator type when it is electricallysimulated, and analytically modeled using its equivalent transfer function (TF). The comparative study Resultsemphasize that FLC tuned by PI controller is superior to the other control strategies because of fast transientresponse, minimum steady state error and good disturbance rejection under various variations of the operatingconditions. Hence, it achieves the most tightly output voltage regulation.
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