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High‐Response Torque Control of IPMSM Based on a New Coordinate System Suitable for Voltage Amplitude and Phase Control
Author(s) -
MATSUKI YOSUKE,
KAJIURA HIROAKI
Publication year - 2017
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.22896
Subject(s) - overmodulation , control theory (sociology) , amplitude , coordinate system , voltage , direct torque control , torque , controller (irrigation) , inverter , synchronous motor , ellipse , phase (matter) , physics , engineering , computer science , mathematics , induction motor , electrical engineering , optics , geometry , control (management) , agronomy , quantum mechanics , artificial intelligence , astronomy , biology , thermodynamics
SUMMARY This paper proposes a torque control method for interior permanent magnetic synchronous motors (IPMSMs). The proposed method controls the voltage amplitude and phase based on a new n – t coordinate system. The t ‐axis is a tangent line of a constant voltage ellipse, and the n ‐axis is a normal line of the ellipse. On the n – t coordinate system, the n ‐axis current is not affected by the voltage phase. The n ‐axis current is utilized to reduce the mutual coupling between the voltage amplitude controller and phase controller. The proposed method realizes a high torque response for the linear range and overmodulation range of the inverter, including six‐step mode. The effectiveness of the proposed method was verified by simulation and experimental results.

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