Identification of three phase IPM machine parameters using torque tests

Odhano, Shafiq Ahmed; Bojoi, Radu; Armando, Eric; Homrich, Guilherme; Filho, Aly Ferreira Flores; Popescu, Mircea; Dorrell, David George

Abstract

This work presents a simple method for obtaining the main parameters, such as the torque constant and the d- and q-axis inductances Ld and Lq, for a brushless internal permanent magnet motor by measuring the machine torque during testing. These tests are relatively simple to carry out compared to other test procedures described in the literature and do not require sophisticated and expensive test equipment nor they are affected by temperature effects as happens with other techniques. The machine under test is supplied through a dc supply at different rotor positions. The shaft torque is measured through a torque sensor during the tests. The test current magnitude is varied to take care of the saturation effects. From the measured torque data and known rotor position, the required parameters can be obtained. Tests performed on two different internal permanent magnet machines confirm the validity and effectiveness of the proposed method.

Citation

Odhano, . S. A., Bojoi, . R., Armando, . E., Homrich, G., Filho, A. F. F., Popescu, M., & Dorrell, . D. G. (2016). Identification of three phase IPM machine parameters using torque tests. IEEE Transactions on Industry Applications, 53(3), 1883-1891. https://doi.org/10.1109/TIA.2016.2646345

• Journal Article Type: Article
• Acceptance Date: Dec 3, 2016
• Online Publication Date: Dec 29, 2016
• Publication Date: Dec 29, 2016
• Deposit Date: Feb 9, 2017
• Publicly Available Date: Feb 9, 2017
• Journal: IEEE Transactions on Industry Applications
• Print ISSN: 0093-9994
• Electronic ISSN: 1939-9367
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 53
• Issue: 3
• Pages: 1883-1891
• DOI: https://doi.org/10.1109/TIA.2016.2646345
• Keywords: inductance measurement, non-linear magnetics, parameter estimation, permanent magnet machines, torque measurement
• Public URL: https://nottingham-repository.worktribe.com/output/831893
• Publisher URL: http://ieeexplore.ieee.org/document/7801930/
• Additional Information: 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
• Contract Date: Feb 9, 2017