关键词: 电动叉车, 势能回收系统, 控制策略, 模糊PI控制

Abstract:

A potential energy recovery system for electric forklift was proposed based on dual-source energy storage system and volumetric speed control, the mathematical model of energy recovery system and the mathematical model of potential energy recovery efficiency were given, fuzzy PI control system for motor speed control was designed, control strategy of potential energy  recovery system was given. AMESim and MATLAB were used to analyse potential energy recovery system, then through experimental study the effectiveness of simulation model and the accuracy of simulation results were tested. The results show  that control effect of fuzzy PI control system is superior to that of traditional PI controller and the control strategy can realize the potential energy efficient recycling,so the control purpose is achieved.

Key words: electric , forklift;potential , energy , recovery system;control , strategy;fuzzy , PI , control