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Volume 30 Issue 1
Feb  2022
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Article Contents
LIANG Yu, LIU Wei-ting, WEI Hai-feng, ZHANG Yi, LI Yuan-jiang. Field Weakening Control Method of Subsection Variable Quadrature Axis Voltage for Permanent Magnet Synchronous Motor[J]. Journal of Unmanned Undersea Systems, 2022, 30(1): 61-67. doi: 10.11993/j.issn.2096-3920.2022.01.008
Citation: LIANG Yu, LIU Wei-ting, WEI Hai-feng, ZHANG Yi, LI Yuan-jiang. Field Weakening Control Method of Subsection Variable Quadrature Axis Voltage for Permanent Magnet Synchronous Motor[J]. Journal of Unmanned Undersea Systems, 2022, 30(1): 61-67. doi: 10.11993/j.issn.2096-3920.2022.01.008

Field Weakening Control Method of Subsection Variable Quadrature Axis Voltage for Permanent Magnet Synchronous Motor

doi: 10.11993/j.issn.2096-3920.2022.01.008
  • Received Date: 2021-03-18
  • Rev Recd Date: 2021-04-19
  • Publish Date: 2022-02-28
  • When rescue detection equipment such as water-surface life-detection robots are in operation, their power supply voltage drops, which can cause them to enter a weak expansion state to improve maneuverability and stability. Under the condition of constant supply voltage, a single-current regulator control of the variable quadrature axis voltage method can effectively avoid the complexity of the control system caused by a double-current regulator, which maintains system control, improves the control efficiency, allows for the realization of a simple structure, provides safe control, and has a convenient effect. In this study, the feedback link of the field weakening control system and given method of variable quadrature axis voltage are improved, and a limit processing is added. A method of quadrature axis voltage setting is proposed, which divides the motor field weakening process into constant power field weakening and deep field weakening; in two parts, the quadrature axis voltage is adjusted in real time, in sections, to make the motor more robust in the deep field weakening state and improve its stability at high speeds. Through a Simulink simulation and an experimental data analysis, the reliability of the control method is verified.

     

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