Sliding mode controller gain adaptation and chattering reduction techniques for DSP-based PM DC motor drives

Mehmet DAL; Remus TEODORESCU

Article Details

Sliding mode controller gain adaptation and chattering reduction techniques for DSP-based PM DC motor drives

Authors:

Mehmet DAL | Remus TEODORESCU

Publisher:

TUBITAK

Journal:

Turkish Journal of Electrical Engineering and Computer Science 2011 Vol.19 Issue 4, pp.531-549

Document Type:

Article

Publication Date:

3/2011

Document Language:

Turkish

Document ID (Org No.):

2000743764

Frequency:

Bimonthly

eISSN:

1303-6203

pISSN:

1300-0632

Abstract:

 

In order to achieve and maintain the prospective benefits of  sliding mode control (SMC) methodology, the phenomenon known as  chattering'', the main obstacle encountered in real-time  applications, has to be suppressed.  In this study, two promising  switching control gain adaptation and chattering reduction techniques  are investigated, and the effectiveness of chattering suppression for  current regulation of PM DC drives is tested.  The sampling rate was  also examined to determine how it affects the amplitude of chattering.  This paper concentrates on various combinations of observer-based  methods in order to find the best solution for chattering reduction.  To find a practical solution a tunable low-pass filter (LPF) was used  to average the discontinuous control term.  The validity of the  existing conditions for the gain adaptation methods are examined and  observer gain value was determined through simulations.  To  demonstrate the effectiveness of each method, several experiments were  performed on a DSP-based PM DC motor drive system.  Then, the newly  proposed combinations of these methods were implemented.  The hardware  implementation results are comparatively presented and discussed.

 

In order to achieve and maintain the prospective benefits of  sliding mode control (SMC) methodology, the phenomenon known as  chattering'', the main obstacle encountered in real-time  applications, has to be suppressed.  In this study, two promising  switching control gain adaptation and chattering reduction techniques  are investigated, and the effectiveness of chattering suppression for  current regulation of PM DC drives is tested.  The sampling rate was  also examined to determine how it affects the amplitude of chattering.  This paper concentrates on various combinations of observer-based  methods in order to find the best solution for chattering reduction.  To find a practical solution a tunable low-pass filter (LPF) was used  to average the discontinuous control term.  The validity of the  existing conditions for the gain adaptation methods are examined and  observer gain value was determined through simulations.  To  demonstrate the effectiveness of each method, several experiments were  performed on a DSP-based PM DC motor drive system.  Then, the newly  proposed combinations of these methods were implemented.  The hardware  implementation results are comparatively presented and discussed.

Article Details

Sliding mode controller gain adaptation and chattering reduction techniques for DSP-based PM DC motor drives

Authors: Mehmet DAL | Remus TEODORESCU

Publisher: TUBITAK

Journal: Turkish Journal of Electrical Engineering and Computer Science 2011 Vol.19 Issue 4, pp.531-549

Document Type: Article

Publication Date: 3/2011

Document Language: Turkish

Document ID (Org No.): 2000743764

Frequency: Bimonthly

eISSN: 1303-6203

pISSN: 1300-0632

Issues

Authors:

Mehmet DAL | Remus TEODORESCU

Publisher:

TUBITAK

Journal:

Turkish Journal of Electrical Engineering and Computer Science 2011 Vol.19 Issue 4, pp.531-549

Document Type:

Article

Publication Date:

3/2011

Document Language:

Turkish

Document ID (Org No.):

2000743764

Frequency:

Bimonthly

eISSN:

1303-6203

pISSN:

1300-0632