Adaptive finite-control-set model predictive current control for IPMSM drives with inductance variation

• Published in: IET electric power applications Vol. 11; no. 5; pp. 874 - 884
• Main Authors: Chen, Zhuoyi, Qiu, Jianqi, Jin, Mengjia
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 01.05.2017
• Subjects: adaptive control; adaptive FCS‐MPC current control; adaptive finite‐control‐set model predictive current control; adaptive observer; compensation; compensation method; electric current control; electric drive control systems; electric drives; FCS‐MPC performance; identification accuracy; inductance; inductance variation; interior permanent magnet synchronous machine drives; IPMSM current control performance; IPMSM drive efficiency; machine control; observers; permanent magnet machines; predictive control; recursive algorithm; Special Issue: Advances in Predictive Control of Variable-Speed Electric Drives; speed‐extension capability; synchronous machines; adaptive finite-control-set model predictive current control; machine control; interior permanent magnet synchronous machine drives; inductance; IPMSM drive efficiency; adaptive FCS-MPC current control; adaptive control; electric drives; compensation method; IPMSM current control performance; electric current control; identification accuracy; inductance variation; FCS-MPC performance; adaptive observer; recursive algorithm; synchronous machines; permanent magnet machines; compensation; electric drive control systems; predictive control; speed-extension capability; observers
• ISSN: 1751-8660; 1751-8679; 1751-8679
• DOI: 10.1049/iet-epa.2016.0861

Finite-control-set model predictive control (FCS-MPC) has many advantages in electric drive control systems but needs the accurate knowledge of the system parameters. The performance of the FCS-MPC will be deteriorated under parameter mismatches. This study proposes an adaptive FCS-MPC current control method for interior permanent magnet synchronous machine (IPMSM) drives subject to the inductance variations. The inductances are identified online by an adaptive observer with a recursive algorithm, which is inherently incorporated into the FCS-MPC control process to reduce the additional computational cost. Compensation methods are also proposed to improve the identification accuracy. The simulation and experimental results validate that, the IPMSM current control performance, speed-extension capability and drive efficiency are all improved by the proposed method.