102第40卷第6期2023年6月真机计仿算文章编号：1006-9348（2023）06-0102-05基于校正环节与改进LADRC的并网电压控制袁昌盛，程度煦，周雪松2（1.中国电子科技集团公司第十六研究所，安徽合肥230000；2.天津理工大学电气电子工程学院，天津300384)摘要：针对网侧风电逆变器输出的并网直流母线电压稳定性易受内部与外部干扰，对风电网侧逆变器数学模型进行分析，随后在电压外环中加人改进线性自抗扰控制器（LADRC）。在传统的线性扩张状态观测器（LESO)中串联超前滞后校正环节，增强了LESO的扰动观测能力。应用李雅普洛夫理论分析了改进LADRC的稳定性，得出系统在实际工程应用上是稳定的。然后在数字平台上进行了仿真验证，多种工况的仿真现象表明，改进LADRC不仅响应速度快，并且具有良好的抗扰性能关键词：并网逆变器；线性自抗扰控制器；线性扩张状态观测器；超前滞后校正中图分类号：TM743文献标识码：BGridConnectedVoltageControlBasedonCorrectionLinkandImprovedLADRCYUANChang-sheng',CHENGDu-xu',ZHOUXue-song?2(1.16thResearchInstituteofChinaElectronicsTechnologyGroupCorporation,HefeiAnhui23000,China;2.SchoolofElectricalandElectronicEngineering,TianjinUniversityofTechnology,Tianjin300384,China)ABSTRACT:InresponsetotheissueofthevoltagestabilityofthegridconnectedDCbusoutputbythegridsidewindpowerinverterbeingsusceptibletointernalandexternalinterference,thispaperanalyzesthemathematicalmodelofthewindgridsideinverter,andthenaddsanimprovedlinearautodisturbancerejectioncontroller(LADRC)tothevoltageouterloop.Intheconventionallinearexpansionstateobserve(LESO),theultra-pre-lagcorrectionlinkwasconnectedinseriestoenhancethedisturbanceobservationabilityofLESO.Finally,thestabilityofimprovedLADRCwasanalyzedusingLyapunovtheory,anditwasfoundthatthesystemisstableinpracticalengineeringapplications.Simulationverificationisthenperformedonthedigitalplatform,andthesimulationofmultipleworkingconditionsin-dicatesthattheimprovedLADRCisfast,butalsohasgoodimmunity.KEYWORDS:Gridconnectedinverter;Linearactivedisturbancerejectioncontroller;Linearextendedstateobserver;Leadlagcorrection1引言随着全球经济发展，对化石能源的需求量在不断增加，但随着时间推移化石能源会不断...
