2023年第41卷第3期串联蓄电池组均衡电流控制方法研究刘欣博，施俊甫，黄学昊（北方工业大学电气与控制工程学院，北京100144）0引言目前，蓄电池构成的储能系统广泛应用于微电网和新能源汽车等领域。为满足储能系统的电压和功率要求，需要将单体蓄电池通过串并联的形式组成蓄电池组。串并联蓄电池组各个单体电池由于生产和工作环境等原因，会产生不一致性[1]。单体蓄电池将直接影响整个电池组的寿命、容量等性能，为避免出现“短板效应”，需要及时对蓄电池进行均衡控制，从而消除差异，保证蓄电池组能量的[基金项目]北京市教委科技项目“可灵活扩容的交流微网系统稳定运行控制”（KM201910009010）Abstract：Batteryenergystoragesystemiswidelyusedinmicro⁃gridandnewenergyvehicles.Inbatterypacks,theperformanceofsinglebatterywillaffecttheperformanceoftheentirebatterypack.Therefore,itisnecessarytobalancethecontroltoeliminatethedifferencebetweenthebatteriesandensuretheperformanceoftheentirebatterypack.Thispaperselectstheseriesbatterypackforequalizationresearch,usingthestateofcharge(SOC)astheequalizationbasis,selectsasecond⁃orderRCequivalentcircuitbatterymodel,obtainsthebatterydatabythehybridpulsepowercharacteristicexperiment,usesMatlabforparameteridentification,andestimatestheSOCaccordingtotheextendedKalmanfilterprinciple.BasedontheequalizationcircuitofCuk,thevarianceofeachbatterySOCisusedasthejudgmentconditiontocontroltheequalizationofthebattery.Thesimulationandexperimentverifytherationalityofthebatterymodelofthesecond⁃orderRCequivalentcircuit,theaccuracyofSOCestimationbasedonextendedKalmanfilter,andtheequalizationcurrentcontrolstrategybasedonCukequalizationcircuit,whichachievesequalizingcurrentcontrol.Keywords：equalizationcurrent;Cukcircuit;quantitativecontrol;SOCestimation;extendedKalmanfilterResearchonControlMethodofEqualizingCurrentforSeriesBatteryPacksLIUXinbo,SHIJunfu,HUANGXuehao（SchoolofElectricalandControlEngineering,NorthChinaUniversityofTechnology,Beijing100144,China）摘要：蓄电池储能系统广泛应用于微电网和新能源汽车等领域，在蓄电池组中，单体蓄电池的性能会影响整个电池组的性能，需要均衡控制消除蓄电池间的...
