摘要
为了改善PMSM(永磁同步电机)的SVPWM(空间矢量脉宽调制)驱动系统的速度控制的效果,在传统PI控制算法中引入了模糊理论,制定了控制参数在线自调整的模糊推理规则,设计了参数自整定的模糊PI控制器,用于系统的速度环.给出了永磁同步电机在dq0坐标系下的数学模型,研究了SVPWM控制的关键技术,并在MATLAB/Simulink环境下建立了基于SVPWM的永磁同步电机驱动系统的仿真模型.在负载突变的情况下,与传统PI的控制方式进行对比仿真实验.仿真结果表明:使用参数自整定模糊PI控制器的系统其速度响应的上升时间、峰值时间、调整时间均更短;在负载扰动的情况下能更快的恢复稳定状态,鲁棒性更强,稳态误差更小.
In order to improve the speed control performance of the PMSM （Permanent Magnet Synchronous Motor） SVPWM （Space Vector Pulse Width Modulation）drive system, fuzzy theory is added to the traditional PI control algorithm. And a parameters self-turning fuzzy PI controller and its fuzzy rules are designed and used in the speed loop of the drive system. The mathematical model of the PMSM is presented. And the basic principles and key technologies of the SVPWM are analyzed. The simulation model of the PMSM drive system based on the SVPWM technology is established in the MATLAB/Simulink environment. A contradistinctive simulation experiment is conducted in the case of load mutation. The experimental results show that the rising time, adjustment time and peak time are shorter. And compared with the old one, the new system can return to steady state faster, and has smaller steady-state error and bigger robustness.
出处
《广西科技大学学报》
CAS
2014年第1期74-78,87,共6页
Journal of Guangxi University of Science and Technology
基金
广西自然科学基金资助项目(2013GXNSFAA019351
2010GXNSFA013024
2010GXNSFA013126)
广西重点实验室建设项目(13-051-38)
2012年广西研究生教育创新计划项目(2012105940811 M01)资助
关键词
永磁同步电机
空间矢量脉宽调制
模糊PI控制器
MATLAB仿真
permanent magnet synchronous motor
space vector pulse width modulation
parameter self-turning fuzzy PI controller
MATLAB Simulation
