發(fā)布時間：2018-10-17 17:36

【摘要】：環(huán)境和能源問題已經成本世紀國際社會廣為關注的話題,電動車作為一種環(huán)境友好型、資源節(jié)約型的交通工具被人們接受。我國作為世界上人口最多的國家,電動車的產量也位居世界第一,但我國電動車研發(fā)的技術仍然相對比較落后,因此,研制出性能優(yōu)越的電動車對我國環(huán)境和能源的發(fā)展具有非常重要的實際價值。電動車輪轂電機基本上都是采用無刷直流電機,所以對無刷直流電機的控制器的研究和設計就成為電動車發(fā)展和研究的重要部分。本文圍繞電動車用無刷直流電機控制器展開理論研究,采用ST公司生產的STM 32系列微控制器作為電機控制器的主控芯片。在對無刷直流電機基本結構、工作原理及其控制策略理論研究的基礎之上,通過軟件仿真和實驗對提出理論算法進行驗證和分析,實現了對電動車用無刷直流電機有效的控制。主要研究工作如下:(1)研究了傳統(tǒng)的無刷直流電機兩兩通控制方式,采用雙閉環(huán)制方式對電機進行控制,并在轉速外環(huán)和電流內環(huán)中都使用了PI控制算法;對上面的控制方式在PSIM中進行了仿真,并分析了仿真結果。(2)研究了無刷直流電機矢量控制系統(tǒng),建立了無刷直流電機、三相逆變器在不同坐標系的數學模型,并將兩者模型聯(lián)系在一起;分析了 SVPWM算法的具體原理;分析、設計了基于Lyapunov的控制器,實現了無刷直流電機的矢量控制,減少了電機電磁轉矩的脈振的問題。(3)研究了無刷直流電機的無速度傳感器矢量控制系統(tǒng),分析滑模變結構控制的基本原理,并將該原理應用到無刷直流電機的無速度傳感器的控制中;設置了兩相靜止坐標系下的自適應滑模觀測器數學模型,準確地觀測到無刷直流電機的感應電勢,實現了無速度控制的目標。(4)設計了無刷直流電機控制的實驗平臺,對本文中提出的各種理論、算法進行了實驗論證。
[Abstract]:Environmental and energy issues have been widely concerned by the international community in the century, electric vehicles as an environmentally friendly, resource-efficient means of transport has been accepted. China, as the most populous country in the world, has the largest output of electric vehicles in the world, but the technology of electric vehicles in our country is still relatively backward, so, The development of electric vehicle with superior performance has very important practical value for the development of environment and energy in our country. The brushless DC motor is basically used in the hub motor of electric vehicle, so the research and design of the controller of the brushless DC motor has become an important part of the development and research of electric vehicle. In this paper, the brushless DC motor controller for electric vehicle is studied theoretically, and the STM 32 series microcontroller produced by ST Company is used as the main control chip of the motor controller. Based on the research on the basic structure, working principle and control strategy of brushless DC motor, the theoretical algorithm is verified and analyzed by software simulation and experiment, and the effective control of brushless DC motor for electric vehicle is realized. The main research work is as follows: (1) the traditional two-way control method of brushless DC motor is studied, and the PI control algorithm is used in the rotating speed outer loop and the current inner loop. The above control methods are simulated in PSIM, and the simulation results are analyzed. (2) the vector control system of brushless DC motor is studied, and the mathematical models of brushless DC motor and three-phase inverter in different coordinate systems are established. The principle of SVPWM algorithm is analyzed and the controller based on Lyapunov is designed to realize the vector control of brushless DC motor. The pulse vibration of motor electromagnetic torque is reduced. (3) the speed sensorless vector control system of brushless DC motor is studied, and the basic principle of sliding mode variable structure control is analyzed. The principle is applied to the speed sensorless control of brushless DC motor, the mathematical model of adaptive sliding mode observer in two-phase stationary coordinate system is set up, and the induction potential of brushless DC motor is accurately observed. (4) the experimental platform of brushless DC motor control is designed, and the various theories and algorithms proposed in this paper are demonstrated experimentally.
【學位授予單位】：揚州大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM33;U469.72
，

本文編號：2277439