电工材料2023No.1徐潘等：考虑SCE-TOG的水电机组调节系统协同控制器设计考虑SCE-TOG的水电机组调节系统协同控制器设计徐潘，张仕海（三峡大学电气与新能源学院，湖北宜昌443002）摘要：水电机组调节系统对维持电力系统的稳定起着不可或缺的作用。为了同时提高水电机组调节系统各状态变量的跟踪性能，改善调节质量，引入协同控制理论，设计了水电机组调节系统调速、励磁协同控制器。首先建立了考虑调压井效应（SCE）及三阶发电机（TOG）的水电机组调节系统非线性数学模型，并推导出上述两种控制器的控制规律；在此基础上，针对水电站并入电网的单机无穷大系统，进行负荷扰动和三相短路故障两种情况下的仿真试验，比较协同调速励磁控制策略、协同调速控制策略和经典PID控制策略的跟踪性能。结果表明，所设计的调速、励磁协同控制器在两种工况下都体现了优越的控制性能。关键词：水电机组调节系统；调压井效应；协同控制理论；调速励磁协同控制；非线性数学模型中图分类号：TK730.7DOI：10.16786/j.cnki.1671-8887.eem.2023.01.010SynergeticControllerDesignforHydroelectricUnitGoverningSystemConsideringSCE-TOGXUPan,ZHANGShihai(CollegeofElectricalEngineering&NewEnergy,ChinaThreeGorgesUniversity,HubeiYichang443002,China)Abstract:Hydroelectricunitgoverningsystempossessesirreplaceablestatusinmaintainingthestabilityofelectricalpowersystem.Inordertosimultaneouslyimprovethetrackingperformanceofeachstatevariableofhydroelectricunitgoverningsystemtoenhancetheregulationquality,synergeticcontroltheoryisintroducedinthispaperaswellasspeedregulationandexcitationsynergeticcontrollerforhydroelectricunitgoverningsystemisdesigned.Firstly,thenonlinearmathematicalmodelofhydroelectricunitgoverningsystemconsideringsurgechambereffect(SCE)andthird-ordergenerator(TOG)isestablished,andcontrolruleoftheabovetwocontrollersisdeduced.Onthisbasis,simulationexperimentsarecarriedoutundertwoconditionsofloaddisturbanceandthree-phaseshortcircuitfaultforthesingle-machineinfinitesystemofthehydropowerstationintegratedintothepowergrid,soastocomparethetrackingperformanceofsynergeticspeedregulationandexcitationcontrolstrategy,synergeticspeedregulationcontrolstrategyandclassicalPIDcontrols...
