25电工电气电工电气(2023No.3)作者简介:高嘉迪(1998—),男,硕士研究生,研究方向为电力电子在电力系统中应用。高嘉迪,何昊洋,俱世豪(西安石油大学电子工程学院,陕西西安710065)摘要:针对目前动态电压恢复器(DVR)多采用根据当前状态做出未来动作的控制方法,从微观上看总会因为采样和反馈信息与控制动作之间存在时间延迟而产生误差的问题,提出一种通过预测下一控制周期的输出从而确定下一控制周期控制动作的闭环结构的模型预测控制(MPC)方法。该方法基于前向欧拉法建立控制预测模型,通过反馈校正的方法减少预测误差,并通过建立合适的目标函数,确定应用于下一控制周期的最佳开关组合。利用MATLAB/Simulink软件搭建所提控制方法的仿真模型,仿真结果表明,提出的MPC方法能有效减少DVR的补偿误差,具有响应速度快、谐波含量低、设计简单等优点。关键词:动态电压恢复器;模型预测控制;反馈校正;最佳开关组合中图分类号:TM714.2文献标识码:A文章编号:1007-3175(2023)03-0025-05Abstract:TheDynamicVoltageRestorer(DVR)isnowemployingthecontrolmethodofmakingfutureactionsaccordingtocurrentstatesmostofthetime.Microscopically,errorsalwaysoccurbecauseofthetimedelaybetweensamplings,feedbackandcontrolactions.Therefore,thepaperputsforwardaloop-lockedModelPredictiveControl(MPC)methodwhichdeterminescontrolactionsofthenextcontrolcyclebypredictingitsoutputs.Themethodbuildsacontrolpredictivemodelonthebasisofeulerforwardmethod.Itcanreducepredictionerrorsthroughfeedbackcorrection,anddeterminetheoptimalswitchcombinationappliedforthenextcontrolcyclebyestablishingtheappropriateobjectivefunction.ThesimulationmodeloftheproposedcontrolmethodisestablishedbyMATLAB/Simulink,andtheresultsshowthattheMPCmethodcaneffectivelyreducethecompensationerrorofDVR,andhastheadvantagesoffastresponse,lowharmoniccontentandsim-pledesign.Keywords:dynamicvoltagerestorer;modelpredictivecontrol;feedbackcorrection;optimalswitchcombinationGAOJia-di,HEHao-yang,JUShi-hao(SchoolofElectronicEngineering,Xi'anShiyouUniversity,Xi'an710065,China)AControlMethodofDynamicVoltageRestorerBasedonSamplingModelPredictiveControl一种采样模型预测控制的动态电压恢复器控制方法0引言现代用电设备中...