Test System Design of Lithium Battery Based on Fuzzy Self-Tuning PID Control

Aiming at the problem of control inflexible and the control algorithm cannot take into account the quick adjustment and accurate control of hardware closed-loop feedback, PID or fuzzy control algorithm in battery testing system, we put forward fuzzy self-tuning PID control algorithm to control charging voltage of lithium ion battery, solving the problem of nonlinear time-varying charging system semaphore cannot be quantified and evaluation cannot be determined, realizing flexible charging signal, precise control and quick adjustment of lithium ion battery testing system. Simulation results show that the control system has good dynamic response performance and stability that adding fuzzy self-tuning PID control.