Title :
Simple on-line compensation scheme of nonlinearity in inverter-fed PMSM drive using MRAC and co-ordinate transformation
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ. of Sci. & Technol., Seoul, South Korea
Abstract :
A simple on-line compensation scheme of nonlinearity in an inverter-fed PMSM drive using an MRAC-based disturbance estimation and co-ordinate transformation is presented. The disturbance voltage caused by the nonlinearity can be effectively estimated using the proposed scheme without any additional circuits or the disadvantages existing in the conventional methods. The asymptotic stability is proved and the effectiveness is verified through simulations.
Keywords :
asymptotic stability; machine control; model reference adaptive control systems; permanent magnet motors; synchronous motor drives; MRAC-based disturbance estimation; asymptotic stability; coordinate transformation; disturbance voltage; inverter-fed PMSM drive; online compensation scheme;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.0194
