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1、转速、电流双闭环直流调速系统毕业设计设计总说明在工业生产中,需要高性能速度控制的电力拖动场合,直流调速系统，特别是双闭环直流调速系统发挥着极为重要的作用。转速、电流双闭环调速系统是20世纪60年代在国外出现的一种新型调速系统。70年代以来,在我国的冶金、机械、制造以及印染工业等领域得到日益广泛的应用。双闭环调速系统是由单闭环自动调速系统发展而来的。它通过转速和电流两个调节器分别引入转速负反馈和电流负反馈，并构成双闭环系统。从而有效的改善电机性能，使电机特性曲线变硬，以满足复杂环境下对电机性能的要求。本设计主要采用三相全
2、控桥式整流电路对直流电机供电，并通过工程设计法对转速调节器和电流调节器相关参数进行计算以达到对转速电流双闭环支流调速系统的整体实现。关键词:直流调速,双闭环,三相全控桥,工程设计法第35页Rotationalspeed,electriccurrentdoubleclosedloopcocurrentvelocitymodulationsystemdesignDesignDescription窗体顶端Intheindustrialproduction,needsthehighperformancespeedcontrol
3、theelectricdrivesituation,thedirect-currentvelocitymodulationsystem,speciallythedoubleclosedloopcocurrentvelocitymodulationsystemisdisplayingthegreatimportancethefunction.Therotationalspeed,theelectriccurrentdoubleclosedloopvelocitymodulationsystemwasinthe1960si
4、nonekindofnewvelocitymodulationsystemwhichoverseasappeared.Sincethe70s,indomainsandsoonourcountry'smetallurgy,machinery,manufactureaswellasprintingindustryhasobtaineddaybydaythewidespreadapplication.Thedoubleclosedloopvelocitymodulationsystemiscomesbythesinglecl
5、osedloopautomaticvelocitymodulationsystemdevelopment.Itintroducestherotationalspeednegativefeedbackandtheelectriccurrentnegativefeedbackseparatelythroughtherotationalspeedandtheelectriccurrenttworegulators,andconstructsthedoublingclosed-loopsystem.Thustheeffecti
6、veimprovementelectricalmachineryperformance,causestheelectricalmachinerycharacteristiccurvetostiffen,satisfiesunderthecomplexenvironmenttotheelectricalmachineryperformancerequest.Thisdesignmainlyusesthree-phaseallcontrolsthebridge-typelevelingcircuittothedirectc
7、urrentmachinepowersupply,andcarriesonthecomputationthroughtheengineeringdesignlawtotheRPMcontrolandthecurrentregulatorrelatedparametertoachievetotherotationalspeedelectriccurrentdoubleclosedloopbranchvelocitymodulationsystem'swholerealizes.Keyword:Direct-current
8、velocitymodulation;Doubleclosedloop;Three-phaseallcontrolsthebridge;Engineeringdesignlaw;第35页目录1.绪论11.1直流调速系统发展11.2直流双闭环系统介绍11.3三相全控整流电路31.4双闭环直流调速系统的数学模型和动态性能分析51.4.
