Evaluation of Maximum Torque per Ampere Control Method for Interior Permanent Magnet Machine Drives on dSpace with Emphasis on Potential Practical Issues for High Energy Efficiency

Osman Emre Özçiflikçi (), Mikail Koç and Serkan Bahçeci
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Osman Emre Özçiflikçi: Electrical-Electronic Engineering, Kırşehir Ahi Evran University, Kırşehir 40100, Turkey
Mikail Koç: Electrical-Electronic Engineering, Kırşehir Ahi Evran University, Kırşehir 40100, Turkey
Serkan Bahçeci: Electrical-Electronic Engineering, Erciyes University, Kayseri 38030, Turkey

Energies, 2025, vol. 18, issue 15, 1-20

Abstract: Interior-mounted permanent magnet (IPM) machines have been widely used in recent years due to their high efficiency, high torque/power densities, and so on. These machines can produce reluctance torque whereas their surface-mounted (SPM) counterparts cannot. Hence, IPMs are attractive in industrial applications that require high torque density. I d = 0 control is commonly adopted to drive permanent magnet (PM) machines, and the strategy is attractive due to its simplicity. However, although it is suitable for SPMs, adopting it in IPMs sacrifices the reluctance torque that can be obtained from the machine. Hence, it is vital to control IPMs using the maximum torque per ampere (MTPA) strategy. This paper adopts the MTPA strategy for a 4.1 kW prototype IPM machine. Test system configuration is discussed step by step by paying particular attention to potential practical issues and inspirational discussions on their solutions. The issues associated with misaligned rotor positions or whistling problems pertinent to inappropriate power conversion strategies are addressed to overcome such issues in practical IPM drives. Comprehensive discussions and extensive comparisons of well-matched simulation and experimental results of both I d = 0 - and MTPA-controlled drives at different evaluation metrics will be quite insightful to achieve efficiency-optimized IPM drives.

Keywords: IPM; Id = 0 control; MTPA; initial position angle (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: 2025
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