基于模糊PID控制器的电动汽车放电控制研究  

Research on electric vehicle discharge control based on fuzzy PID controller

作　　者：吴雪颖 严芝健 颜翰宇 林春兰 刘海燕[1] WU Xue-ying;YAN Zhi-jian;YAN Han-yu;LIN Chun-lan;LIU Hai-yan(School of Vocational&Technical Education,Guangxi University of Science&Technology,Liuzhou Guangxi 545000,China;Fangchenggang Polytechnic School,Fangchenggang Guangxi 538000,China;Liuzhou Power Supply Bureau,Guangxi Power Grid Co.,Ltd.,Liuzhou Guangxi 545000,China)

机构地区：[1]广西科技大学职业技术教育学院,广西柳州545000 [2]防城港理工职业学校,广西防城港538000 [3]广西电网责任有限公司柳州供电局,广西柳州545000

出　　处：《电源技术》2020年第11期1662-1665,1700,共5页Chinese Journal of Power Sources

基　　金：广西高校中青年教师科研基础能力提升项目(2019-KY0374)。

摘　　要：新能源汽车的调速稳定控制性能、续航里程以及蓄电池寿命的提高对电动汽车发展有着重要的影响。为了分析不同的放电控制策略对电动汽车的调速、蓄电池输出电压及容量产生的影响,运用Matlab/Simulink软件搭建蓄电池放电模型,通过模拟电动汽车起动、调速及负荷变化分别对应电机恒速起动、运行过程中转速突变、突加负载三种情况,采用传统比例-积分-微分控制器(PID)和模糊PID两种控制策略对蓄电池放电进行仿真分析。结果表明,模糊PID控制器对电机转速、调速响应速度、电压输出等的控制效果及精度优于传统PID控制器,验证了所提模糊PID矢量控制的合理性及稳定性。How to improve the speed and stability control,cruising range,and battery life of new energy vehicles has an important impact on the development of electric vehicles.In order to analyze the impact of different discharge control strategies on the speed regulation,battery output voltage and capacity of electric vehicles,this paper uses Matlab/Simulink software to build a battery discharge model.By simulating the electric vehicle starting,speed regulation and load changes,it corresponds to the constant speed of the motor.During the starting and running process,there are three cases of sudden changes in speed and sudden load increase.The traditional PID and fuzzy PID control strategies are used to simulate and analyze the battery discharge control.The simulation results show that the fuzzy PID controller has better control effect and accuracy on the motor speed,speed response speed and voltage output than the traditional PID controller,which verifies the rationality and stability of the proposed fuzzy PID vector control.

关 键 词：电动汽车 蓄电池 放电控制 模糊规则 

分 类 号：TM57[电气工程—电器]