电动汽车用永磁无刷直流电机控制技术研究

电动汽车用永磁无刷直流电机控制技术研究，研究生学位论文，写得比较详细，电机本体及其控制，软件硬件都有

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论文标题:电动汽车用永磁无刷直流电机控制技术研究
Research on BLDC Motor Control System for Electric Vehicle
论文作者 杨立勇
论文导师 王明渝,论文学位 硕士,论文专业 电气工程
论文单位 重庆大学,点击次数 41,论文页数 81页File Size1309k
2004-03-10论文网 http://www.lw23.com/lunwen_483391827/ 永磁无刷直流电机,低速能量回馈,电流控制,弱磁
PM BLDC, Low speed energy feedback, Current control, field weaken
电动汽车具有清洁无污染、能量来源多样化、能量效率高的特点,又便于实现智能化的管理,可以解决燃油汽车带来的能量、环境以及交通等一系列问题,因此电动汽车已成为世界各国的研究热点。我国电动汽车技术还处在起步阶段,各方面的关键技术都需要研究解决。电机及其控制技术是电动汽车的关键技术之一,是研究开发电动汽车首先需要解决的问题。本论文首先简要介绍了电动汽车的研究和发展现状,对几种电动汽车驱动电机进行了比较,充分说明了永磁无刷直流电机是一种较好的具有发展前景的电动汽车驱动电机。接着论文对电动汽车用永磁无刷直流电机控制技术存在的问题进行了分析,包括位置检测技术、电流检测和控制技术、能量回馈技术以及弱磁控制四个方面。论文第二章首先对永磁无刷直流电机运行原理和数学模型进行了介绍,然后分别对永磁无刷直流电机以上四个方面的问题进行了综述和理论分析,指出合理的电动汽车用永磁无刷直流电机控制方案。第三章和第四章分别介绍了电动汽车电机控制系统的硬件以及软件设计。第五章在前面几章的基础上,进行了实验研究,并对实验结果进行了分析。在完成论文的基础上,本课题的主要工作和结论如下1)根据电动汽车的特点和要求,设计了TMS320LF2407A为核心的永磁无刷直流电机控制系统的硬件和软件,进行了混合动力汽车装车实验,通过了国家“863计划”电动汽车的第一期验收。(2)对电动汽车用永磁无刷直流电机控制系统能量回馈制动进行了研究,并进行了大量的实验,实现了能量回馈制动功能,得到了一批宝贵的实验数据,为进一步的研究和应用打下了基础。(3) 对永磁无刷直流电机的电流采样方式和控制技术进行了分析研究,并对PI控制以及电流滞环跟踪控制两种方法进行了大量的实验研究。(4) 分析了永磁无刷直流电机弱磁的可能性,并通过实验进行了研究,说明普通无刷直流电机的弱磁范围非常有限,要满足电动汽车宽范围调速的要求,必须对永磁电机的内部结构重新进行设计。
Electric Vehicle (EV) has no population. It can supply with several kinds of energy. Also its energy efficient is high. These advantages solved the problems such as energy, population and road capacity that made by traditional vehicle. EV technology has become the researching focus. The research of EV technology in our country has just begun. All the key technology has to be solved. Motor and its control technology is one of the most important technologies that must be solved firstly.Firstly this paper introduced the status quo of EV investigation and development. Compared with several type of motors which used for EV, it can be found that the permanent magnetic brushless DC motor is one of the best drive motors for EV and this motor has good foreground. Then the problem existed for the BLDC control is showed including position detection, current measurement and control, energy feedback and field weakening. In the second chapter the theory and math model of BLDC is introduced, and then the problems existed is analyzed separately, and rational project is proposed. Then the hardware and software of the motor control system are introduced in the third and fourth chapters separately. On the basis of the foregoing chapters, in the fifth chapter some experiments results are given and also the results analysis is included.The main works and conclusions in this paper are as follows:(1) According to the EV characteristic and requirement, BLDC control system based on TMS320LF2407A is designed. A HEV that equipped this motor control system is checked and accepted by EV expert group of the 863 plans in the first period.(2) The energy feedback theory for the PM BLDC motor control system is analyzed and many experiments are made. The energy feedback is realized and a lot of experiment data are gained. It lays a foundation for late research.(3) The current sample mode and control technology for PM BLDC are analyzed and also many experiments are made.(4) The possibility of PM BLDC field weakening is analyzed, and some experiments were made. It showed that field weakening for general PM BLDC is limited to a strait range. This motor structure must be designed again in order to satisfy the EV requirement.

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