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http://dx.doi.org/10.5207/JIEIE.2007.21.10.073

Design of on Adaptive Current Controller for a PMSM AC Servo Motor  

Kim, Kyeong-Hwa (서울산업대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.21, no.10, 2007 , pp. 73-81 More about this Journal
Abstract
To improve the capability of instantaneous torque control, a design method of an MRAC-based adaptive current controller for a PMSM servo motor is proposed. In the synchronous frame current controller, a new control inputs can be obtained through the decoupling compensation. Using this, a desired controller bandwidth can be assigned However, the control performance may be degraded due to disturbances caused by the parameter variations or dead time of the switch. To improve these drawbacks, an adaptive current controller is proposed and the design method is obtained using the hyperstability theory. The asymptotic stability is proved and the effectiveness is verified through simulations and experiments using DSP TMS320C31.
Keywords
Adaptive current control; Hyperstability; Inverter; DSP TMS320C31; PMSM;
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