Behavior modeling of permanent magnet synchronous motors using flux linkages for coupling with circuit simulation

Kaimori, Hiroyuki; Nakao, Noriya; Sakaue, Takahiro; Akatsu, Kan

doi:10.1109/icelmach.2014.6960569

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…The dynamic behavior of the DTC's controlled variables (i.e., torque and flux) depends on the voltage vector applied to the machine terminals, which can be represented by different mathematical models for PMSM [37]. If the fluxlinkage-based model in the stationary coordinates (𝛼𝛽) is employed, the stator flux vector (𝝍 𝛼𝛽 = 𝜓 𝛼 + j𝜓 𝛽 ) and the electromagnetic torque (𝑇 𝑒 ) can be expressed as…”

Section: Pulse Selection In Dtc Of Pmsm a Principle Of Dtcmentioning

confidence: 99%

Performance Prediction of Direct Torque-Controlled PMSM Drives Considering Different Pulse Selectors Using FEA-Based Model

Nasr,

Gu,

et al. 2023

IEEE Open J. Power Electron.

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Despite the robustness and fast dynamic response, direct torque control (DTC) exhibits relatively large ripples in torque and flux during steady-state operation. Mitigating these ripples depends on designing a pulse selector to identify the optimal voltage vector at every control cycle, which has been reported with different structures in the literature. Hence, it is becoming increasingly crucial to comprehensively understand the criteria used in pulse selection and analyze their impact on the overall DTC performance. These are challenging in permanent magnet synchronous motor (PMSM) drives due to the nonlinear torque/current characteristics and spatial harmonics of the magnetic flux. This paper exploits the high fidelity and computational efficiency of the finite-element analysis (FEA)-based model to present a performance prediction strategy for DTC of PMSM under different pulse selectors. First, this model is employed to thoroughly analyze the influence of each switching pulse on the torque and flux deviations under changing operating conditions considering the machine's nonlinearities. Then, the pulse selection schemes used in switching-table-based DTC are comparatively evaluated, highlighting the advantages and limitations of each. Based on this evaluation, an advanced pulse selector with a variable-structure switching table (VSST) is developed, reducing torque/flux ripples and simplifying the control implementation while maintaining the fast dynamic response of DTC.INDEX TERMS Direct torque control (DTC), finite-element analysis (FEA), permanent magnet synchronous motor (PMSM), pulse selection, torque ripple.

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Section: Pulse Selection In Dtc Of Pmsm a Principle Of Dtcmentioning

confidence: 99%

Performance Prediction of Direct Torque-Controlled PMSM Drives Considering Different Pulse Selectors Using FEA-Based Model

Nasr,

Gu,

et al. 2023

IEEE Open J. Power Electron.

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show abstract

“…An adaption of rare‐earth magnet and flexible power control of power electronics to traditional synchronous motors has made them more attractive electric drives in terms of high efficiency, flexible controllability and high densities of power and torque . With the spread of applications, there is a need for the electric drives to satisfy the diverse demands of users, and the motor should ensure high‐efficiency operation at multiple operating points on the speed–torque plane.…”

Section: Introductionmentioning

confidence: 99%

Design and control of variable field permanent magnet motors

Matsui

2019

IEEJ Transactions Elec Engng

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This is a survey paper focusing on permanent magnet motors with variable field capability. The synchronous motors, which have been applied to somewhat limited fields, have garnered attention as attractive electric drives. Due to a connection with rare‐earth magnet and power electronics‐based flexible control, current permanent magnet synchronous motors have achieved the best position in terms of high power and torque densities, high efficiency and flexible control capability. In order to satisfy the diverse demands of users, a motor is requested to ensure high‐efficiency operation at multiple operating points on the speed–torque plane. It is well recognized that maximum efficiency is attained under the condition that the copper loss is equal to the fixed loss, mainly composed of iron loss, at a given operating point. This is why permanent magnet synchronous motors should have the capability of adjusting the field excitation, similar to the direct current shunt motors. In this paper, recent trends of research and development of variable field permanent magnet motors are overviewed from the standpoint of design and control. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Derivation of Non-uniformly Distributed Look-up Table for PMSM Model Simulation

Lin,

Chen

2023

2023 IEEE International Future Energy Electronics Conference (IFEEC)

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Behavior modeling of permanent magnet synchronous motors using flux linkages for coupling with circuit simulation

Cited by 6 publications

References 9 publications

Performance Prediction of Direct Torque-Controlled PMSM Drives Considering Different Pulse Selectors Using FEA-Based Model

Performance Prediction of Direct Torque-Controlled PMSM Drives Considering Different Pulse Selectors Using FEA-Based Model

Design and control of variable field permanent magnet motors

Derivation of Non-uniformly Distributed Look-up Table for PMSM Model Simulation

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