基于ADHDP的单液流锌镍电池充电电流控制  

Charge current control of single-flow zinc-nickel battery based on ADHDP

作　　者：宋春宁[1] 宁正高 SONG Chun-ning;NING Zheng-gao(College of Electric Engineering,Guangxi University,Nanning,Guangxi 530004,China)

机构地区：[1]广西大学电气工程学院,广西南宁530004

出　　处：《电池》2021年第1期33-36,共4页Battery Bimonthly

基　　金：国家自然科学基金资助项目(51767005);广西自然科学基金项目(2016GXNSFAA380328)。

摘　　要：以单液流锌镍电池非线性系统为研究对象,采用执行依赖启发式动态规划(ADHDP)对单液流锌镍电池的充电电流进行控制。先建立单液流锌镍电池的二阶RC等效电路模型和直流(DC)-DC变换器的Buck电路模型;再利用ADHDP算法设计电流控制器;最后,用MATLAB/SIMULINK仿真平台对ADHDP和比例积分(PI)设计的电流控制器进行对比。该ADHDP控制器可提高充电电流的跟踪性能和抗干扰能力,能更好地改善系统的动态性能,充电电流控制效果更好。在充电初期电流从0 A突变到参考值7 A时,ADHDP控制下的充电电流几乎无超调,而PI的超调量为32.86%。Taking the non-linear system of single-flow zinc-nickel battery as the research object,the action dependent heuristic dynamic programming(ADHDP)was used to realize the charging current control of the single-flow zinc-nickel battery.Firstly,the second-order RC equivalent circuit model of the single-flow zinc-nickel battery and the Buck circuit model of the direct current(DC)-DC converter were established.The ADHDP was used to design the current controller.The current controllers of ADHDP and proportional integral(PI)were compared by MATLAB/SIMULINK simulation platform.The ADHDP controller could improve the tracking performance and anti-interference ability of the charging current,which could better improve the dynamic performance of the system,and had a better control effect of the charging current.When the current was abruptly changed from 0 A to the reference value of 7 A at the initial stage of charging,the charging current under ADHDP control had almost no overshoot,while the overshoot of PI was 32.86%.

关 键 词：单液流锌镍电池 执行依赖启发式动态规划(ADHDP) 充电电流控制 Buck电路模型 比例积分(PI) 

分 类 号：TM912.9[电气工程—电力电子与电力传动]