<abstract xmlns="http://www.w3.org/1999/xhtml"><p>It is necessary to find the suitable <italic>d</italic> - and <italic>q</italic> -axis reference currents to control PMA-SynRM motors with high efficiency. This paper presents the maximum torque per ampere (MTPA) to minimize the copper losses of the system and utilizes the field weakening control to operate above the rated speed of the PMA-SynRM. The copper losses equation and electromagnetic torque are used to optimize the <italic>d</italic> - and <italic>q</italic> -axis current references. A small-scale 1 kW prototype PMA-SynRM was designed and manufactured to test and examine the proposed control in the laboratory. The proposed algorithm was digitally carried out using the MicroLab Box dSPACE. The simulation results show that the copper losses of the machine with the MTPA algorithm are lower than those without the MTPA algorithm. The PMA-SynRM operates above the base speed of ~ 70 % in the constant power region by mean of field weakening control.</p></abstract>

It is necessary to find the suitable d - and q -axis reference currents to control PMA-SynRM motors with high efficiency. This paper presents the maximum torque per ampere (MTPA) to minimize the copper losses of the system and utilizes the field weakening control to operate above the rated speed of the PMA-SynRM. The copper losses equation and electromagnetic torque are used to optimize the d - and q -axis current references. A small-scale 1 kW prototype PMA-SynRM was designed and manufactured to test and examine the proposed control in the laboratory. The proposed algorithm was digitally carried out using the MicroLab Box dSPACE. The simulation results show that the copper losses of the machine with the MTPA algorithm are lower than those without the MTPA algorithm. The PMA-SynRM operates above the base speed of ~ 70 % in the constant power region by mean of field weakening control.

Design and control of permanent magnet assisted synchronous reluctance motor with copper loss minimization using MTPA

Theoretical and Computational Science Center, Faculty of Science

King Mongkuts University of Technology Thonburi

Faculty of Electronics, Communications and Computers

Renewable Energy Research Centre, Department of Teacher Training in Electrical Engineering, Faculty of Technical Education

King Mongkut’s University of Technology North Bangkok

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

It is necessary to find the suitable d - and q -axis reference currents to control PMA-SynRM motors with high efficiency. This paper presents the maximum...

Design and control of permanent magnet assisted synchronous reluctance motor with copper loss minimization using MTPA

Published Online: Mar 20, 2020

Page range: 11 - 19

Received: Dec 10, 2019

DOI: https://doi.org/10.2478/jee-2020-0002

Keywords
copper loss, permanent-magnet assisted reluctance motor (PMA-SynRM), maximum torque per ampere (MTPA), field weakening, PI linear control

© 2020 Songklod Sriprang et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Design and control of permanent magnet assisted synchronous reluctance motor with copper loss minimization using MTPA

Published Online: Mar 20, 2020

Page range: 11 - 19

Received: Dec 10, 2019

DOI: https://doi.org/10.2478/jee-2020-0002

Keywordscopper loss, permanent-magnet assisted reluctance motor (PMA-SynRM), maximum torque per ampere (MTPA), field weakening, PI linear control

© 2020 Songklod Sriprang et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
copper loss, permanent-magnet assisted reluctance motor (PMA-SynRM), maximum torque per ampere (MTPA), field weakening, PI linear control