Design and Model Free Predictive Current Control for Brushless Direct Current Motors with Low Rare Earth Material

• Main Authors: Yu, Bo-Syun, 余柏勲
• Other Authors: Yu, Hsing-Cheng
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/5zc749

碩士 === 國立臺灣海洋大學 === 系統工程暨造船學系 === 102 === In operation, cogging torque of the motor generates torque ripple, further noise, vibration or shaking, etc. These problems not only affect motor’s performance and life, but also can be used in high-precision control of machinery. In order to solve problems of cogging torque, and improve the interaction of magnetic circuit in the motor. By the micro-structure, reduced the motor usage of rare earth material Through a simple parameter setting, complete the fast simulation analysis to understand the impact of micro-groove structure on the cogging torque. The controller use model free predictive current control(MFPCC) to drive BLDC motor. The MFPCC has insensitive to the motor parameters different form model base predictive current control. The current sampling once before change the switch state. It can avoid current surge when switching state. Application of the brushless DC motor drive will check the feasibility in computer. The tracking current capability by MFPCC compare to model base predictive current control(MBPCC). Completion of the drive control system simulation.