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分类号：TM464UDC：D10621-408-(2013)1468-0密级：公开编号：2009072075滑模控制单相全桥工频逆变器设计论文作者姓名：罗显公申请学位专业：电气工程及其自动化申请学位类别：工学学士指导教师姓名（职称）：倪雨（副教授）论文提交日期：2013年06月01日分类号：TM464UDC:D10621-408-(2013)1468-0密级：公开编号：2009072075成都信息工程学院学位论文滑模控制单相全桥工频逆变器设计论文作者姓名：罗显公申请学位专业：电气工程及其自动化申请学位类别：工学学士指导教师姓名（职称）：倪雨（副教授）论文提交日期：2013年06月01日滑模控制单相全桥工频逆变器设计摘要针对逆变器中PI控制容易引起电压跌落，动态特性差，谐波含量高，抗扰能力若等问题该文设计了基于逆变电路的滑模控制器，并重点就滑模控制单相全桥工频逆变器滑模系数难选取困难的问题，建立了单相全桥逆变器的相变量模型，分析了滑模域与负载电阻和滑模系数的关系，据此提出了一种滑模控制器的设计方法，并以主电路参数和滞环宽为条件计算了开关频率，同时从相图的角度分析了滞环宽和静态误差的关系。最后在SIMULINK中搭建了仿真模型。仿真结果验证了该设计方法的可行性和有效性。关键词：相变量模型；滑模控制器；滑模域DesignofOne-phasePowerFrequencyInverterwithSlidingModeControlAbstractForPIcontrolwaseasytocausevoltagedrop,poordynamics,harmonicdistortion,anti-interferenceabilityandotherissues,theSMCwasdesignedforinverterinthispapers.ThispaperproposedadesignschemeoftheslidingmodecontrolforSingle-phasefull-bridgepowerfrequencyinverter,aimingatthedifficultproblemofdeterminingtheslidingcoefficient.Basedonphase-plainmodel,therelationsamongtheslidingdomain,slidingcoefficientandloadresistancewereanalyzed.Theswitchingfrequencywasalsocalculatedamongthecircuitparametersandthehysteresis.Then,consideringthespecificationrequirement,thispaperproposedanoveldesignmethodforslidingcoefficient.Atlast,asimulationmodelforsystemwassetup,basedonSIMULINK,andthesimulationresultsshowthefeasibilityandefficience.KeyWords:Phasevariablemodel;slidingmodecontrol;slidingdomain目录论文总页数：27页1绪论.............................................................................................................................................11.1逆变器的研究意义..........................................................................................................11.2逆变技术概况..................................................................................................................11.2.1逆变电路拓扑.......................................................................................................11.2.2调制方式...............................................................................................................11.2.3控制技术...............................................................................................................21.3课题研究的背景和内容..................................................................................................22滑模变结构控制.........................................................................................................................32.1滑模变结构控制的概念和定义......................................................................................32.2滑模变结构控制的研究历史和前景..............................................................................53逆变器状态空间模型.................................................................................................................64滑模控制器设计.........................................................................................................................74.1切换函数和控制..............................................................................................................74.2滑模区域..........................................................................................................................84.2.1滑模存在条件.......................................................................................................84.2.2滑模域与滑模系数及负载的关系.......................................................................84.3滑模系数设计..................................................................................................................94.4开关频率和滞环宽........................................................................................................134.5静态误差与滞环宽........................................................................................................155系统总体设计和仿真研究.......................................................................................................175.1系统模型........................................................................................................................175.2仿真结果分析................................................................................................................185.2.1空载时系统仿真结果分析.................................................................................185.2.2负载在最严重的负载突变时仿真结果分析.....................................................195.2.3电源突变时的仿真结果分析.............................................................................205.2.4电源突变和负载突变同时发生.........................................................................22结论.........................................................................................................................................23参考文献.........................................................................................................................................24致谢.........................................................................................................................................26声明.........................................................................................................................................27第1页共27页1绪论1.1逆变器的研究意义随着新能源技术和高压