Development of a mathematical model suitable for high-efficiency operation of permanent magnet synchronous motors

2016 Fiscal Year Final Research Report

• Project/Area Number: 26820098
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Osaka Prefecture University
• Principal Investigator: Inoue Yukinori 大阪府立大学, 工学(系)研究科(研究院), 准教授 (50580148)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 電気機器工学 / モデル化 / エネルギー効率化 / 永久磁石同期モータ

Outline of Final Research Achievements

This study proposes a novel mathematical model of maximum torque per ampere (MTPA) control for direct torque control (DTC) of permanent-magnet synchronous motors (PMSMs) in the stator flux linkage synchronous (M-T) frame. Consideration of the magnetic saturation and cross-coupling effects in PMSMs requires significant complexity in most of the mathematical models using the rotor synchronous (d-q) frame. In the M-T frame, the mathematical model for MTPA control requires only three parameters that can be determined from only three measured points. The validity of the proposed model was confirmed by both simulation and experimental results. The proposed model can achieve high-efficiency operation in DTC-based PMSM drive system.

Free Research Field

電気工学