), 吴锋, 吕成磊, 王涵, 沈俊昊 浙江大学 动力机械及车辆工程研究所，杭州 310027
收稿日期:2019-07-15出版日期:2021-02-01发布日期:2021-03-03通讯作者:姚栋伟E-mail:dwyao@zju.edu.cn作者简介:侯珏(1994-)，女，浙江省诸暨市人，博士生，主要研究方向为增程式电动汽车能量管理策略．Control Strategy for Electric Vehicle Range-Extender Based on Hybrid Excitation Generator
HOU Jue, YAO Dongwei(), WU Feng, Lü Chenglei, WANG Han, SHEN Junhao Power Machinery and Vehicular Engineering Institute, Zhejiang University, Hangzhou 310027, China
Received:2019-07-15Online:2021-02-01Published:2021-03-03Contact:YAO Dongwei E-mail:dwyao@zju.edu.cn摘要/Abstract
摘要： 针对增程器转速功率动态协调控制问题，提出了一种基于混合励磁电机的新型电动汽车增程器，阐述了其控制系统结构及工作原理．根据混合励磁增程器整体效率特性确定了多转速点工作区域，基于混合励磁电机气隙磁场的柔性可调特性，设计了围绕工作区域的增程器转速-功率解耦发电双闭环控制算法．利用MATLAB/Simulink搭建控制策略模型，基于自行开发的混合励磁增程器原理样机进行了试验验证．试验结果表明，混合励磁增程器输出发电功率动态响应快，转速、功率控制稳态误差小，稳态及瞬态运行工况均位于设定工作区域内，发电控制策略可行．
关键词: 电动汽车, 增程器, 混合励磁电机, 控制策略, 解耦控制
Abstract: Based on a hybrid excitation generator, a novel electric vehicle range-extender was proposed and the control system structure and the working principle were described. The multi-speed point working area was determined, according to the overall efficiency characteristics of the hybrid excitation range-extender. Based on the flexible adjustable characteristics of the air-gap magnetic field of the hybrid excitation generator, a double-closed-loop generation control algorithm was designed by decoupling the speed-power around the working area of the range-extender. The control strategy model was built by using MATLAB/Simulink and verified based on the prototype of the self-developed hybrid excitation range-extender. The test results show that the hybrid excitation range-extender has fast-dynamic response of output power and small steady-state error of speed and power control. Further, the steady-state and transient operating conditions are both located in the set working area. Therefore the power generation control strategy is feasible.
Key words: electric vehicle, range-extender, hybrid excitation generator, control strategy, decoupling control
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