Efficiency optimization of direct torque control for permanent magnet synchronous motor

For problem of efficiency and power factor falling of permanent magnet synchronous motor running in light load and high speed, an efficiency optimization strategy of direct torque control for permanent magnet synchronous motor was proposed. The mathematical model was established based on considering...

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Main Authors: SUN Wen, ZHANG Xinghua
Format: Article
Language:zho
Published: Editorial Department of Industry and Mine Automation 2014-03-01
Series:Gong-kuang zidonghua
Subjects:
Online Access:http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2014.03.016
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author SUN Wen
ZHANG Xinghua
author_facet SUN Wen
ZHANG Xinghua
author_sort SUN Wen
collection DOAJ
description For problem of efficiency and power factor falling of permanent magnet synchronous motor running in light load and high speed, an efficiency optimization strategy of direct torque control for permanent magnet synchronous motor was proposed. The mathematical model was established based on considering iron loss of permanent magnet synchronous motor and analyzing relationships among power loss and torque, speed and stator flux linkage, and the optimal stator flux amplitude was derived. The optimal stator flux calculation module was embedded into direct torque control system, and speed-regulation control system of optimal efficiency of direct torque control for permanent magnet synchronous motor was constituted. The simulation results show that the strategy can effectively reduce the power loss of permanent magnet synchronous motor and improve operation efficiency of the motor.
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spelling doaj.art-ec024df7a11d47bdad6aa1edff0200ae2023-03-17T01:52:11ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2014-03-01403565910.13272/j.issn.1671-251x.2014.03.016Efficiency optimization of direct torque control for permanent magnet synchronous motorSUN WenZHANG XinghuaFor problem of efficiency and power factor falling of permanent magnet synchronous motor running in light load and high speed, an efficiency optimization strategy of direct torque control for permanent magnet synchronous motor was proposed. The mathematical model was established based on considering iron loss of permanent magnet synchronous motor and analyzing relationships among power loss and torque, speed and stator flux linkage, and the optimal stator flux amplitude was derived. The optimal stator flux calculation module was embedded into direct torque control system, and speed-regulation control system of optimal efficiency of direct torque control for permanent magnet synchronous motor was constituted. The simulation results show that the strategy can effectively reduce the power loss of permanent magnet synchronous motor and improve operation efficiency of the motor.http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2014.03.016permanent magnet synchronous motormathematical modeldirect torque controlefficiency optimizatio
spellingShingle SUN Wen
ZHANG Xinghua
Efficiency optimization of direct torque control for permanent magnet synchronous motor
Gong-kuang zidonghua
permanent magnet synchronous motor
mathematical model
direct torque control
efficiency optimizatio
title Efficiency optimization of direct torque control for permanent magnet synchronous motor
title_full Efficiency optimization of direct torque control for permanent magnet synchronous motor
title_fullStr Efficiency optimization of direct torque control for permanent magnet synchronous motor
title_full_unstemmed Efficiency optimization of direct torque control for permanent magnet synchronous motor
title_short Efficiency optimization of direct torque control for permanent magnet synchronous motor
title_sort efficiency optimization of direct torque control for permanent magnet synchronous motor
topic permanent magnet synchronous motor
mathematical model
direct torque control
efficiency optimizatio
url http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2014.03.016
work_keys_str_mv AT sunwen efficiencyoptimizationofdirecttorquecontrolforpermanentmagnetsynchronousmotor
AT zhangxinghua efficiencyoptimizationofdirecttorquecontrolforpermanentmagnetsynchronousmotor