5、uchasthemaximumpercentovershoot, settlingtime, attenuationrateandIAE. Thedesignof singleclosed-loopcontrol system includesdesignsofP, I, PI andPID. Thecontrollerparameteristunedbyfrequencyresponseofattenuationrateandtheattenuationcurve.Allthe controldesignmethodsincludedarecomparedbysimulationcu