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中南大学学报(自然科学版)

Journal of Central South University

第46卷    第6期    总第250期    2015年6月

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文章编号:1672-7207(2015)06-2036-08
基于dSPACE的新型双滑模PMSM控制方法
高雅,刘卫国,骆光照

(西北工业大学 自动化学院,陕西 西安,710072)

摘 要: 设计一种基于滑模理论的永磁同步电机控制系统,利用滑模控制器代替传统的PID控制器,用滑模观测器代替传统的位置传感器。滑模控制器中针对传统滑模控制的抖振问题,引入准滑模和趋近律的概念,设计一种新的滑模控制器。滑模观测器使用连续饱和函数代替传统的开关函数,有效地减少高频噪声信号,经李亚普诺夫稳定方程证明系统的稳定性。本设计方法充分发挥滑模控制的优势。通过dSPACE实验平台的验证和ControlDesk环境的实时观测,证明所设计的新的滑模控制器在消除抖振和抗干扰方面明显优于传统的滑模控制器和PID控制器,滑模观测器能准确地观测位置信号,而且针对具有噪声干扰的场合,加入卡尔曼滤波器,有效地减少了干扰信号。

 

关键字: 永磁同步电机;滑模变结构;SVPWM;卡尔曼滤波器;硬件仿真;dSPACE

New dual-sliding mode control method of PMSM based on dSPACE
GAO Ya, LIU Weiguo, LUO Guangzhao

College of Automation, Northwestern Polytechnic University, Xi’an 710072, China

Abstract:Based on the sliding mode theory, a new control system of permanent magnet synchronous motor was designed. It used a new sliding mode controller to replace the traditional one and PID one, and used the sliding mode observer to replace the position sensors. Aimed at the chattering question of conventional sliding mode controller, the concept of reaching law and quasi-sliding mode were introduced. In the designing processes of the sliding mode observer, using a continuous saturation function instead of the traditional switch function, high frequency noise signal was reduced. By dSPACE platform experimenting and ControlDesk real-time observing, the results show that the new sliding mode controller has a better effect for eliminating the chattering and the noise disturbed signal, and the position signal can be accurately observed by the sliding mode observer. Furthermore, Kalman filter controller is used in this control system for adapting to the noise disturbed area. According to the result, this design can decrease the noise signals effectively.

 

Key words: permanent magnet synchronous motor; sliding mode variable structure; space vector pulse width modulation (SVPWM); Kalman filter controller; hardware simulation; digital signal processing and control engineering (dSPACE)

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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