Title :
Discrete-Time Fuzzy Speed Regulator Design for PM Synchronous Motor
Author :
Choi, Han Ho ; Jung, Jin-Woo
Author_Institution :
Div. of Electron. & Electr. Eng., Dongguk Univ., Seoul, South Korea
Abstract :
This paper proposes a discrete-time Takagi-Sugeno (T-S) fuzzy speed regulator system for a permanent-magnet synchronous motor (PMSM). An accurate approximate discrete-time T-S fuzzy model is first derived for a PMSM. By using the discrete-time T-S fuzzy model, a fuzzy acceleration observer as well as a fuzzy speed regulator is designed. In terms of linear matrix inequalities, sufficient conditions for the existence of the regulator and observer are derived. The exponential stability of the augmented control system is also shown. The proposed discrete-time T-S fuzzy speed regulator system is implemented by using a TMS320F28335 floating point DSP. Simulation and experimental results are given to verify that the proposed digital control method can be successfully used for a PMSM under model parameter and load torque variations.
Keywords :
angular velocity control; asymptotic stability; control system synthesis; digital control; discrete time systems; fuzzy control; linear matrix inequalities; machine control; observers; permanent magnet motors; synchronous motors; LMI; PMSM; T-S fuzzy model; TMS320F28335 floating point DSP; Takagi-Sugeno system; augmented control system; digital control method; discrete-time fuzzy speed regulator design; exponential stability; fuzzy acceleration observer; linear matrix inequalities; load torque variations; observer; parameter model; permanent-magnet synchronous motor; Acceleration; Approximation methods; Load modeling; Observers; Regulators; Torque; Discrete-time system; fuzzy controller; fuzzy observer; linear matrix inequality (LMI); permanent-magnet synchronous motor (PMSM);
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2012.2205361
