Title :
Adaptive controller design for a sensorless IPMSM drive system with a maximum torque control
Author :
Shi, J.-L. ; Liu, T.-H. ; Chang, Y.-C.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei
fDate :
11/1/2006 12:00:00 AM
Abstract :
An advanced controller design for a sensorless interior permanent-magnet synchronous motor control system is proposed. A maximum torque/ampere control algorithm is used to improve the torque performance of the drive system. In addition, an adaptive controller combined with the maximum torque/ampere control is proposed to obtain a good transient response and a good load disturbance rejection capability. The proposed control method can be applied to both a sensorless adjustable speed control system and a sensorless position control system. Using the Lyapunov stability theory and Barbalat´s lemma it is shown that the closed-loop sensorless control system is an asymptotical stable system. A 32-bit digital signal processor is used to execute the rotor position estimation algorithm and the control algorithm. Experimental results validate the theoretical analysis and show the correctness and feasibility of the proposed system
Keywords :
Lyapunov methods; adaptive control; angular velocity control; asymptotic stability; closed loop systems; digital signal processing chips; machine control; permanent magnet motors; position control; rotors; synchronous motor drives; transient response; variable speed drives; 32-bit digital signal processor; Barbalat lemma; Lyapunov stability theory; adaptive controller design; adjustable speed control; ampere control algorithm; asymptotical stable system; closed-loop sensorless control system; load disturbance rejection; permanent magnet synchronous motor; position control; rotor position estimation; sensorless drive system; torque control; transient response;
Journal_Title :
Electric Power Applications, IEE Proceedings -
DOI :
10.1049/ip-epa:20050520
