Self-Adaptive High-Frequency Injection Based Sensorless Control for Interior Permanent Magnet Synchronous Motor Drives

Piyush Kumar, Omar Bottesi, Sandro Calligaro, Luigi Alberti and Roberto Petrella
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Piyush Kumar: Faculty of Science and Technology, Free University of Bozen-Bolzano, 39100 Bolzano, Italy
Omar Bottesi: Faculty of Science and Technology, Free University of Bozen-Bolzano, 39100 Bolzano, Italy
Sandro Calligaro: Faculty of Science and Technology, Free University of Bozen-Bolzano, 39100 Bolzano, Italy
Luigi Alberti: Department of Industrial Engineering, University of Padova, 35122 Padova, Italy
Roberto Petrella: Polytechnic Department of Engineering and Architecture, University of Udine, 33100 Udine, Italy

Energies, 2019, vol. 12, issue 19, 1-26

Abstract: An auto-tuning and self-adaptation procedure for High Frequency Injection (HFI) based position and speed estimation algorithms in Interior Permanent Magnet Synchronous Motor (IPMSM) drives is proposed in this paper. Analytical developments show that, using conventional approaches, the dynamics of the high-frequency tracking loop varies with differential inductances, which in turn depend on the machine operating point. On-line estimation and adaptation of the small signal gain of the loop is proposed here, allowing accurate auto-tuning of the sensorless control scheme which does not rely on a priori knowledge of the machine parameters. On-line adaptation of Phase-Locked Loop (PLL) gains and of the injected voltage magnitude is also possible, leading to important advantages from the performance, loss and acoustic point of view. The theoretical basis of the method has been introduced first and the main concept demonstrated by means of simulations. Implementation has been carried out using the hardware of a commercial industrial drive and two Interior Permanent Magnet Synchronous Motors, namely a prototype and an off-the-shelf machine. Experimental tests demonstrate the feasibility and effectiveness of the proposal.

Keywords: IPMSM drives; adaptive control; high frequency injection; sensorless (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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