PMSM drive with adaptive state feedback speed controller

• Published in: Bulletin of the Polish Academy of Sciences. Technical sciences Vol. 68; no. 5; pp. 1009 - 1017
• Main Authors: Szczepanski, R., Tarczewski, T., Grzesiak, L.M.
• Format: Journal Article
• Language: Polish; English
• Published: Warsaw Polish Academy of Sciences 01.10.2020
• Subjects: Adaptation; Adaptive control; Adaptive systems; Algorithms; Controllers; Cost function; Model reference adaptive control; Moments of inertia; Parameters; Permanent magnets; pmsm; State feedback; state feedback controller; Synchronous motors; widrow-hoff rule
• ISSN: 2300-1917; 0239-7528; 2300-1917
• DOI: 10.24425/bpasts.2020.134624

In this paper, the issue related to control of the plant with nonconstant parameters is addressed. In order to assure the unchanged response of the system, an adaptive state feedback speed controller for permanent magnet synchronous motor is proposed. The model-reference adaptive system is applied while the Widrow-Hoff rule is used as adjustment mechanism of controller’s coefficients. Necessary modifications related to construction of the cost function and formulas responsible for adjustment of state feedback speed controller’s coefficients are depicted. The impact of adaptation gain, which is the only parameter in proposed adjustment mechanism, on system behaviour is experimentally examined. The discussion about computational resources consumption of the proposed adaptation algorithm and implementation issues is included. The proposed approach is utilized in numerous experimental tests on modern SiC based drive with nonconstant moment of inertia. Comparison between adaptive and nonadaptive control schemes is also shown.