Robust controllers design and efficiency analysis for a brushless servo system |
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| Authors: | Tian‐Hua Liu Ji‐Liang Shi Chang‐Huan Liu |
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| Affiliation: | Department of Electrical Engineering , National Taiwan Institute of Technology , Taipei, Taiwan, 10772, R.O.C. |
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| Abstract: | Abstract This paper investigates the design of robust controllers for a class of ac servo drives, the brushless servo motor drive, and presents the efficiency and power factor analysis of the drive system. Robust PI, H 2, and H 8 control techniques are applied to the design of servo controllers. A fully digital control system is constructed to experimentally verify the controller performance. The steady‐state characteristics of the servo drive are derived and are measured on‐line by a microcomputer‐based efficiency measurement system. The theoretical development is validated by the experimental work. |
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| Keywords: | robust controller efficiency brushless servo |
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