CAJ | 학술논문

针对电动汽车锂电池的荷电状态不能被直接测量的现状，以容量为12 Ah的高功率锂电池为研究对象，为该对象建立了等效电路模型，并对电池的模型参数进行辨识，辨识的电池模型参数能够较好地模拟电池的动静态特性。最后对所建立的模型设计状态观测器来估算电池的S O C，仿真结果及分析表明，所设计的控制策略能够较好的估算电池的荷电状态，为算法在实车上进行测试提供了理论依据。
침대전동기차리전지적하전상태불능피직접측량적현상，이용량위12 Ah적고공솔리전지위연구대상，위해대상건립료등효전로모형，병대전지적모형삼수진행변식，변식적전지모형삼수능구교호지모의전지적동정태특성。최후대소건립적모형설계상태관측기래고산전지적S O C，방진결과급분석표명，소설계적공제책략능구교호적고산전지적하전상태，위산법재실차상진행측시제공료이론의거。
For SOC of Lithium battery in electric car can not be directly measured, the capacity of 12 Ah high power lithium battery was as the research object in the paper, the equivalent circuit model of the battery is established, and the parameters of battery model were identified, the parameters of battery model can be well simulated the dynamic and static characteristics of the battery. Finally, the proposed model state observer is designed to estimate the SOC of the battery, the simulation results and analysis show that the designed control strategy can be better estimated the battery charged state, which provides a theoretical basis that the algorithm is tested on the real car.