Stator-Flux-Oriented Control of Synchronous Motors: A Systematic Design Procedure

• Published in: IEEE transactions on industry applications Vol. 55; no. 5; pp. 4811 - 4820
• Main Authors: Awan, Hafiz Asad Ali, Hinkkanen, Marko, Bojoi, Radu, Pellegrino, Gianmario
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-09-2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Feedback linearization; Flux; Input–output feedback linearization; nonlinear control; Observers; Output feedback; Permanent magnets; permanent-magnet (PM) synchronous motor; Pulse width modulation; Rotors; stator-flux-oriented control; Stators; Synchronous motors; synchronous reluctance motor (SyRM); Table lookup; Torque
• ISSN: 0093-9994; 1939-9367
• DOI: 10.1109/TIA.2019.2927316

This paper deals with stator-flux-oriented control of permanent-magnet (PM) synchronous motors and synchronous reluctance motors (SyRMs). The variables to be controlled are the stator-flux magnitude and the torque-producing current component, whose references are easy to calculate. However, the dynamics of these variables are nonlinear and coupled, potentially compromising the control performance. We propose an exact input-output feedback linearization structure and a systematic design procedure for the stator-flux-oriented control method in order to improve the control performance. The proposed controller is evaluated by means of experiments using a 6.7-kW SyRM drive and a 2.2-kW interior PM synchronous motor drive.