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Matlab轮边驱动系统电机控制系统设计及仿真

时间:2020-03-13 22:20来源:毕业论文
摘要本文首先介绍了本文首先介绍了本课题的产生的背景和原因,并研究了电动汽车在国内外的发展情况和未来的前景。并在简单的分析了电动汽车所选电机要考虑的几个要点,选出了

摘要本文首先介绍了本文首先介绍了本课题的产生的背景和原因,并研究了电动汽车在国内外的发展情况和未来的前景。并在简单的分析了电动汽车所选电机要考虑的几个要点,选出了合适的驱动电机。46557
再选出合适电机的基础上构建了所选电机的数学模型,并合理的分析了所选电机的各种电气参数,为构建合理的控制策略做好准备。
在分析过所选电机并提出所选电机的控制策略的几种方法后进行比较,选择一种相对稳定高效的控制策略。
为了验证控制策略的合理性以及其稳定性,本文在完成所有分析之后对对所提的方案进行了仿真。在Matlab/Simulink环境下,构建了所选电机的模型,并详细介绍了各个子模块。
系统采用速度环和电流环构成双闭环控制系统,其中速度环采用离散的pid控制,而速度环使用脉冲宽度调制方案进行控制。
本文在建立仿真模型的情况下,较为认真的分析了实验结果,并与理论分析的结果对比,验证了控制策略的的正确性和有效性。
这个仿真模型也可以用来检验其他控制策略是不是符合实际。
毕业论文关键词:无刷直流电机;建模;仿真;控制策略;Matlab
 ABSTRACT
Firstly, this paper introduces the background and reasons of this topic, and studies the development situation of electric vehicle at home and abroad and the prospect of the future. And in a simple analysis of the electric vehicle to consider several points of the selection of the main points to choose a suitable driving motor.
And then choose the appropriate motor based on the construction of the selected motor mathematical model, and reasonable analysis of the various electrical parameters of the selected motor, in order to build a reasonable control strategy to prepare.
After comparing several methods of analyzing the control strategy of the selected motor and the control strategy of the selected motor, a relatively stable and efficient control strategy is selected.
In order to verify the rationality of the control strategy and its stability, this paper makes a simulation of the proposed scheme after the completion of all the analysis. In the Matlab/Simulink environment, the model of the selected motor is constructed, and each sub module is introduced in detail.
The system adopted in the speed loop and the current loop structure dual closed loop control system, which the speed loop uses the discrete PID control, and speed loop use pulse width modulation scheme to control.
In this paper, the simulation model is established, and the experimental results are analyzed and compared with the results of theoretical analysis. The correctness and effectiveness of the control strategy are verified.
This simulation model can also be used to test other control strategies that are not consistent with the actual.
Key words: Brushless DC motor; Modeling; Simulation; Control strategy; Matlab
目  录
第一章  绪论    1
1.1课题的背景与意义    1
1.2电动汽车国内外的发展情况    1
1.2.1国外电动汽车发展概况    1
1.2.2国内电动汽车发展概况    2
1.2.3电动汽车发展前景分析    3
1.3电动汽车的基本结构    3
1.4电动汽车的电机选择    4
1.4.1电动汽车车用电机的特性和选择    4
第二章  轮边驱动系统的电机控制系统    6
2.1无刷直流电机的数学模型    6
2.1.1绕组电压方程    6
2.1.2电磁转矩方程    7
2.1.3电机运动方程    7
2.2无刷直流电机的特性    7
2.2.1 机械特性    7 Matlab轮边驱动系统电机控制系统设计及仿真:http://www.lwfree.com/zidonghua/lunwen_48288.html
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