基于虚拟调频机组的空调负荷参与电网调频控制策略研究张海滨(东北电力大学,吉林吉林132012)摘要:为了应对高比例可再生能源电力系统中快速性调频资源短缺的问题,对空调负荷参与电力系统一次频率调整的控制策略进行了研究。采用了双层的控制策略,在上层控制中,将空调负荷聚合体看作虚拟的发电机组对多个空调负荷聚合商进行轮流协调控制,针对不同的频率状态,通过实时变化的下垂系数以优化分配虚拟发电机组的调频备用容量,相较传统发电机组响应更加迅速、控制方式更加灵活。在下层控制中,聚合商通过本地控制器对空调负荷进行开关控制,以达到快速的频率响应并降低控制成本,并考虑了用户舒适度对聚合功率的影响。通过仿真,验证了该策略可有效提高虚拟发电机组的响应性能。关键词:一次频率调整;空调负荷;分层控制;用户舒适度中图分类号:TM714文献标志码:A文章编号:1009-5306(2023)01-0010-05ResearchonControlStrategyofAirConditioningLoadsParticipatinginPowerGridFrequencyRegulationBasedonVirtualFrequencyRegulationUnitZHANGHaibin(NortheastElectricPowerUniversity,Jilin132012,China)Abstract:Inordertocopewiththeshortageoffastfrequencyregulationresourcesinhighproportionrenewableenergypowersystem,thispaperstudiesthecontrolstrategyofairconditioningloadsparticipatinginprimaryfrequencyadjustmentofpowersystem.Usedthedoublecontrolstrategy,intheuppercontrol,airconditioningloadspolymersasgeneratorsofvirtualaggregatorstotakecoordinatedcontrolformultipleairconditioningloads,accordingtodifferentfrequencystate,throughthereal-timechangeofdroopcoefficienttooptimizetheallocationofvirtualgeneratorsetfrequencymodulationsparecapacity,comparedwiththetraditionalgeneratorresponsemorequicklyandmoreflexiblecontrolmode.Inthelowerlevelcontrol,theaggregatorswitchestheairconditioningloadsthroughthelocalcontrollertoachieverapidfrequencyresponseandreducecontrolcosts,andtheeffectofusercomfortonaggregatepowerandhenceonreservecapacityisconsidered.Throughsimulationprovesthattheproposedstrategycaneffectivelyimprovetheresponseperformanceofthevirtualgeneratorset.Keywords:primaryfrequencyregulation;airconditioningload;hierarchicalcontrol;usercomfort收稿日期:2022-09-10作者简介:张...
