摘要摘要直流调速系统的在工业中的应用很广泛，也是交流调速系统的基础。直流调速系统用双闭环结构时控制效果最好，为此本文对双闭环直流调速系统进行了研究，重点对控制部分展开研究。分析调速系统的稳态和动态结构，建立双闭环直流调速系统的数学模型，通过全面分析根据双闭环直流调速系统的控制要求将电流和转速都设计为比例积分调节器，并设计了电流和转速调节器的参数。对经典双闭环系统进行分析的同时，为了能得到合理的设计参数，用MATLAB软件对电流环和转速环的设计举例进行了仿真，通过比较说明了直流调速系统的特性。关键词：双闭环直流调速系统；比例积分调节器；MATLABIABSTRACTDCservosystemiswidelyusedintheindustry，andisthefadationofACservoSystem.TheDCservosystemcanbecontroledwellwithdouble-closedsystem.Inthispaperdouble-closedloopDCservosystemisstudied,theimportanceofzhestudyisthecontrolsection.analysisofthestaticanddynamicofspeedcontrolsystem,andestablishingadouble-closedloopDCsystemmathematicalmodel.PIcontrolerisdesignedforboththecurrentandspeedregulator，anddesigncurrentandspeedregulatorparameters.Whenanalysisoftheclassicaldouble-loopsystem，inordertogetareasonabledesignparameters.MATLABsoftwarehasbeenselectedtosimulateparametersofthesystemwhichhasbeenchoosen,withacomparisontoshowthecharacteristicsofDCControlsystem.KEYWORDS：Double-closedloopDCservosystem;PIcontroller;MATLABII目录目录第一章绪论............................................................................................................................11.1课题背景、发展及意义.................................................................................................11.2课题的主要任务及内容................................................................................................11.3论文的内容安排及主要工作.........................................................................................1第二章直流调速系统理论研究和方案确定.........................................................................32.1双闭环调速系统的工作原理.......................................................................................32.1.1转速控制的要求和调速指标...............................................................................32.1.2调速系统的动态性能指标......................................................................................42.2双闭环调速系统的动态分析.........................................................................................52.2.1直流电机动态模型..................................................................................................52.2.2调速系统的双闭环调节原理..................................................................................72.3双闭环调速系统的起动过程分析...............................................................................72.4转速、电流双闭环直流调速系统.................................................................................92.4.1稳态结构图..............................................................................................................92.4.2双闭环调速系统组成............................................................................................10第三章双闭环直流调速系统的调节器设计.......................................................................133.1按工程设计方法设计双闭环系统的调节器...............................................................133.1.1系统设计对象.......................................................................
