Design and Implementation for a Sensorless Permanent Magnet Synchronous Motor Drive System

• Main Authors: Yung-Chi Chang, 張永奇
• Other Authors: Tian-Hua Liu
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/09837815676888899034

碩士 === 國立臺灣科技大學 === 電機工程系 === 93 === The thesis investigates the design and implementation of the rotor estimating technique and control algorithm for a sensorless interior permanent magnet synchronous motor (IPMSM) drive system. First, the structure, characteristics and mathematical model of the IPMSM are discussed. Then, a new rotor position estimator is proposed. This estimator is easily implemented and is unrelated to the parameters of the motor. Next, a nonlinear adaptive backstepping controller is proposed. The controller design procedures can be applied to both speed control and position control systems. In addition ,it can achieve a maximum torque per ampere control for the IPMSM drive. The implemented system has a wide adjustable speed range, fast response, and good load disturbance rejection ability. A 16-bit digital signal processor, TMS320LF2407 is used to achieve current, velocity, and position control. As a result, the hardware circuit is very simple. Experimental results show that the proposed algorithms are feasible and correct.