Output feedback control of electrolyte flow rate for Vanadium Redox Flow Batteries
钒氧化还原液流电池电解液流量的输出反馈控制
出版日期:2020
杂志名称:Journal of Power Sources
卷号:455
期数:Complete
刊号:0378-7753
出版日期:2020
简介:Inthispaper,weproposeanewstrategyforelectrolyteflowratecontrolinVanadiumRedoxFlowBatteries.Thekeystoneofourapproachisanovelmethodologyfordeterminationofoptimalreferencevoltageandrobustfeedbackcontrollerdesignthatprovidesthedesiredtransientandsteadystatebatteryperformance.Inaddition,weintroduceahierarchicalschemeofthegeneralbatterycontrolsystemthatsignificantlysimplifiesclassificationofbatterycontroltasksandgivesguidelinesformultistagecontrollerdesign.Theresearchconsidersakilo-wattclassVRFBsystemoperatinginawiderangeofloadingcurrents(20–180A).Theproposedcontrolalgorithmallowsreferencetrajectorytrackingwithhighaccuracy(averageerrorlessthan0.0005%),yetprovidingtherequiredbatteryperformanceattwicelowerflowratesascomparedtotheexistingsolutions,andthus,decreasingpumpenergyconsumptionbyafactorof3.Asaresult,theproposedmethodcanbeusedforflowrateregulationinpracticalVRFBsystemsensuringtheirstableandefficientoperationunderdynamicloadingconditions."