文档名：模块化解耦电路的协同控制策略
摘要：有源功率解耦技术是解决单相变换器中低频二次脉动功率的有效方法.模块化电路具有标准化、独立性和通用性等优点,发展模块化的解耦电路是有源功率解耦技术的重要方向.现有控制策略仅针对单个解耦电路提出,没有考虑多个解耦模块共同工作时的协同控制问题.对此,该文提出一种基于虚拟阻抗的多解耦模块协同控制策略,通过控制解耦模块模拟无源RLC电路的阻抗特性,实现单个解耦模块的即插即用和多个解耦模块的协同功率分配.所提出的控制无需解耦模块与主电路交互电网电压和电流信息,也无需解耦模块间的相互通信,避免了集中的中央控制器和昂贵实时通信的使用.实验以两个解耦模块的功率协同控制为例验证了所提控制策略有效可行性.
Abstract：Asanimportantdevelopmentdirectionofactivepowerdecoupling(APD)technology,themodularizationofactivedecouplingcircuitshastheadvantagesofstandardization,independence,andversatility.However,theexistingcontrolstrategiescanonlybeappliedtoindividualdecouplingmoduleswithoutconsideringthepowerdistributionproblemamongmultipledecouplingmodules.Hence,avirtualimpedance-basedcooperativecontrolstrategyformultipledecouplingmodulesisproposed.Firstly,theimpedancecharacteristicofapassiveLCresonancecircuitisanalyzed:fortheDCcomponent,theresonancecircuitisequivalenttoanopencircuit;forthedouble-linefrequencycomponent,itisequivalenttoashortcircuit,andtheresonancecircuitbypassestheripplecurrent.WhentheexternalcharacteristicofindividualdecouplingmodulesiscontrolledtobeconsistentwiththepassiveLCresonancecircuit,theripplepoweriswellbufferedbydecouplingmodules.Meanwhile,thecontrolofdecouplingmodulesisindependentbecauseonlyoneexternalinformationisneeded.Nounifiedcentralcontrollerisneeded,andtheplug-and-playfunctionisrealized.Secondly,whenconsideringthepowerdistributionproblembetweenmultipledecouplingmodules,theimpedancecharacteristicofmultiplepassiveRLCresonancecircuitscanbeutilized.FortheDCcomponent,theRLCresonancecircuitisstillequivalenttoanopencircuit;thedouble-linefrequencycomponentisequivalenttoapurelyresistivecircuit,andtheripplecurrentflowingthrougheachRLCresonancecircuitisinverselyproportionaltoitsbranchresistor.Thus,addingvirtualpowerdistributionresistorscanrealizethecooperativecontrolofmultipledecouplingmoduleswithoutreal-timecommunicationbetweendecouplingmodules.Then,thispaperintroducestheconcreteimplementationoftheproposedcooperativecontrolstrategywithtypicalBuck-typedecouplingmodules.Thecontrollerdesignisdiscussed,includingthevirtualpowerdistributionresistorselectionandtheparametersofthedecouplingvoltage\currentcontroller.Finally,aseriesofexperimentsareconducted.Whentwosamedecouplingmoduleswork,thebufferpowerofeachmoduleisdistributedaccordingtothedecouplingcapacitance(satisfyingthe1∶1distributionrelationship),andthebusvoltagerippleiseffectivelysuppressed(Δvdc/Vdc＜5%).Whentwodifferentdecouplingmoduleswork,thebufferpowerofeachmoduleisdistributedaccordingtothedecouplingcapacitance(satisfyingthe2∶1distributionrelationship),andthebusvoltagerippleisalsosuppressed.Thedynamicpowervariationexperimentsshowthattheproposedmethodcanachieveflexibleinsertionandremovalofdecouplingmodules,whichverifiestheplug-and-playperformanceofdecouplingmoduleswithoutcommunication.Exceptforthetransientregulationprocess,therectifierinputcurrentmeetstheperformanceindex(PF=0.99,THD=3.6%).Accordingtothetheoreticalandexperimentalresults,theproposedvirtualimpedance-basedcontrolstrategyfordecouplingmodulesreliesonlyontherippleinformationoftheDCbusvoltage.Thedecouplingpowerofeachmoduleisdistributedinproportiontoitsdecouplingcapacitance.Theproblemofcooperativecontrolissolved.Theproposedcontroldoesnotrequirethedecouplingmodulestointeractwiththemaincircuitforgridinformation,nordoesitrequirethedecouplingmodulestocommunicatewitheachother.Thus,usingacentralizedcentralcontrollerandexpensivereal-timecommunicationequipmentisavoided.
作者：刘永露 袁银浩 王辉 粟梅 张莞箓 Author：LiuYonglu YuanYinhao WangHui SuMei ZhangWanlu
作者单位：中南大学自动化学院长沙410083;省部共建电工装备可靠性与智能化国家重点实验室(河北工业大学)天津300130中南大学自动化学院长沙410083
刊名：电工技术学报 ISTICEIPKU
Journal：TransactionsofChinaElectrotechnicalSociety
年，卷(期)：2024, 39(10)
分类号：TM46
关键词：单相变换器 有源功率解耦 协同控制 模块化
Keywords：Single-phaseconverter activepowerdecoupling cooperativecontrol modularization
机标分类号：TM46TN925.93TM715
在线出版日期：2024年5月31日
基金项目：中南大学创新驱动人才计划，长沙市杰出创新青年培养计划，国家重点实验室基金模块化解耦电路的协同控制策略[
期刊论文] 电工技术学报--2024, 39(10)刘永露 袁银浩 王辉 粟梅 张莞箓有源功率解耦技术是解决单相变换器中低频二次脉动功率的有效方法.模块化电路具有标准化、独立性和通用性等优点,发展模块化的解耦电路是有源功率解耦技术的重要方向.现有控制策略仅针对单个解耦电路提出,没有考虑多个解...参考文献和引证文献
参考文献
引证文献
本文读者也读过
相似文献
相关博文
模块化解耦电路的协同控制策略 Cooperative Control Strategy for Modular Decoupling Circuits
模块化解耦电路的协同控制策略.pdf
- 文件大小:
- 2.18 MB
- 下载次数:
- 60
-
高速下载
|
|
