Research on Permanent Magnet Synchronous Motor Field Weakening Control Based on Voltage Limitation Ellipse Gradient Descent Algorithm
Abstract：The field weakening control speed-regulation system is introduced based on permanent magnet synchronous motor. The basic principle of permanent magnet synchronous motor weakening speed expanding, common methods and its advantages, weakness are discussed. Then the field weakening control is processed by voltage limitation ellipse gradient descent algorithm, which modifies current reference value. The proportion coefficient a、β are being simulated when current reference value modifies. The simulation result shows that the value of a、β influence dynamic performance of field-weakening area. When the value of a is less than β, the dynamic performance is good.
Keywords：permanent magnet synchronous motorfield weakening controlgradient descent algorithm
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 18-23 )