起重运输机械Issue(10)：138-143,6.
电动叉车势能回收系统及试验研究
摘要
Abstract
Despite growing importance of electric forklift truck in warehouse storage, frequent up and down operations of its lifting system constantly convert potential energy into heat energy, resulting in rising temperature of hydraulic system and poor performance and short life of hydraulic components. To overcome this problem, the paper proposes a potential energy recovery system of electric forklift truck driven by asynchronous generator and battery. PI regulating loop is introduced before torque and flux linkage control loop, and direct torque control is based on space vector modulation to study potential energy recovery efficiency under different loads and speeds and build a testing platform for potential energy recovery test study. Experimental results show that recovered potential energy increases by 1286.82 J for every increase of 138 kg in load at the speed of 1200 r/min under the control mode, meaning potential energy recovery efficiency up to 79.29%.关键词
电动叉车/空间矢量调制/直接转矩控制/势能回收Key words
electric forklift truck/space vector modulation/direct torque control/potential energy recovery分类
机械制造引用本文复制引用
钱宇,王海波,范曙远,蒋毅..电动叉车势能回收系统及试验研究[J].起重运输机械,2017,(10):138-143,6.基金项目
中央高校基本科研业务费(2682015CX036)、国家自然科学基金(51205329) （2682015CX036）
