西南交通大学学报Issue(2)：241-246,6.DOI:10.3969/j.issn.0258-2724.2015.02.006
轴向主动磁轴承的改进不完全微分PID控制
Improved Incomplete Derivative PID Control of Axial Active Magnetic Bearing
蒋启龙 1胡振球2
作者信息
- 1. 西南交通大学磁浮列车与磁浮技术教育部重点实验室，四川成都610031
- 2. 西南交通大学电气工程学院，四川成都610031
- 折叠
摘要
Abstract
In order to reduce the interference of measurement noise and improve the steady-state precision of magnetic bearing control,the active magnetic bearing of a vertical motor was adopted to analyze the influence of measurement noise on the traditional PID control. Considering that the incomplete derivative PID controller with the first-order filter and the traditional PID controller cannot meet the requirement in performance of controlling the measurement noises,an improved algorithm for the incomplete derivative PID control with the second-order filter was proposed. A simulation platform was then built in Simulink of MATLAB,and the improved algorithm was verified experimentally on the active magnetic bearing platform using C programming language. Results of simulation and experiments show that the improved algorithm can improve the static performance of the magnetic bearing. Using the incomplete derivative PID controller with the second-order filter,the steady-state error of the air gap of the magnetic bearing was about 20 μm,reduced by nearly 50%(i. e. ,30 μm in magnitude) compared to the traditional PID controller and the incomplete derivative PID controller with the first-order filter. This proves the effectiveness of the improved algorithm.关键词
磁轴承/PID控制器/数字滤波器/稳定性Key words
magnetic bearing/PID controller/digital filter/stability分类
信息技术与安全科学引用本文复制引用
蒋启龙,胡振球..轴向主动磁轴承的改进不完全微分PID控制[J].西南交通大学学报,2015,(2):241-246,6.
