Dynamic control of the permanent magnet-assisted reluctance synchronous machine

• Published in: IET electric power applications Vol. 1; no. 2; pp. 153 - 160
• Main Authors: DE KOCK, H. W, KAMPER, M. J
• Format: Journal Article
• Language: English
• Published: London Institution of engineering and technology 01.03.2007; The Institution of Engineering & Technology
• Subjects: Applied sciences; Compensation; Control systems; Design engineering; Dynamical systems; Dynamics; Electrical engineering. Electrical power engineering; Electrical machines; Exact sciences and technology; Loads (forces); Miscellaneous; Regulation and control; Reluctance; Synchronous machines; Dynamic response; Synchronous machine; Stator; Reluctance machine; Control system; Control synthesis; System design; d q Frame; State space; Finite element method; Machine design; Machine control; Observer; Speed control; Permanent magnet; Digital signal processor
• ISSN: 1751-8660; 1751-8679
• DOI: 10.1049/iet-epa:20060325

A digital signal processor-based control system for the permanent magnet-assisted reluctance synchronous machine, with the emphasis on dynamic performance, is proposed. A classical design approach is used to design the current and speed controllers for the machine. The stator current of the machine is controlled in such a way that the current angle in the dq synchronous reference frame is constant. The load-torque is estimated using a state space observer and compensation current based on the estimated load is used to improve the dynamic performance of the drive. The control system design is machine specific as it relies on data from finite-element analysis. Simulated and measured results on a 110-kW power level show that the resulting control system is stable and robust with good dynamic performance.