中文摘要：

为实现串联锂电池组充电均衡控制,提出基于次优解集扰动智能水滴算法（IWD）的PID锂电池均衡充电控制策略。首先,对锂电池的充电均衡电路进行研究,给出具有单均衡器设置的PID充电控制结构图,并讨论了不同情形下的均衡控制策略;其次,针对PID参数整定问题,引入智能水滴算法进行参数优化,为提高其优化性能,利用次优解集和混沌扰动提高水滴进化的多样性,提高进化精度和效率;最后,通过MATLAB/Simulink仿真,对所提出的锂电池均衡充电控制策略的有效性进行了验证,均衡后的电压曲线拟合分布更为集中,所用时间更短。

英文摘要：

In order to achieve the balance control of charging in series lithium ion batteries, so as to improve the charging efficiency of lithium battery,a PID lithium battery equalization charging control strategy based on sub optimal solution set disturbance intelligent water drop algorithm（IWD） was proposed. Firstly, the charge equalization circuit for the lithium battery is studied, and the structure diagram of PID charge control with a single equalizer is presented. Secondly, in allusion to the problems of setting of PID parameters,the introduction of intelligent water drops algorithm was used to optimize the parameters, in order to improve the performance of the optimization, the suboptimal solution set and chaos disturbance were used to improve the diversity of evolution of water droplets, which can improve the accuracy and efficiency of evolution. Finally, the effectiveness of the proposed control strategy is verified by MATLAB/Simulink simulation, and the distribution of the voltage curve fitting distribution is more concentrated, and the time is shorter.