Title :
Standstill and low speed sensorless control of SMPMSM by using digital FIR filter in the HF signal injection method
Author :
Amiri, Ahmad ; Dehkordi, Behzad Mirzaeian ; Sabahi, Mohamad Farzan ; Mirdamadi, Faezeh
Author_Institution :
Dept. of Electr. Eng., Univ. of Isfahan, Isfahan, Iran
Abstract :
In this paper a sensorless speed vector control method at standstill and low speed in the Surface Mount Permanent Magnet Synchronous Motor (SMPMSM) drive system is described. A high-frequency model of an SMPMSM in the rotor reference frame is developed based on a sensorless rotor speed estimation algorithm. Furthermore, a digital filter is used to reduce the delay effect of conventional analog filters. The coefficients of the digital filter are optimized by using Genetic Algorithm (GA). Also the speed and current PI controllers which are used in the vector control scheme are adjusted based on GA. Simulation results for a 370 V 2.8 Kw, 1500rpm SMPMSM confirm the good performances of the proposed method in standstill and low speed cases.
Keywords :
FIR filters; PI control; electric current control; genetic algorithms; machine vector control; permanent magnet motors; sensorless machine control; synchronous motor drives; HF signal injection method; conventional analog filters; current PI controllers; digital FIR filter; genetic algorithm; high-frequency model; power 2.8 kW; rotor reference frame; sensorless rotor speed estimation algorithm; sensorless speed vector control method; surface mount permanent magnet synchronous motor drive system; voltage 370 V; Band pass filters; Finite impulse response filter; Machine vector control; Rotors; Stators; Torque; Digital FIR Filter; Genetic Algorithm (GA); SMPMSM; Signal Injection; Vector Control;
Conference_Titel :
Electrical Engineering (ICEE), 2011 19th Iranian Conference on
Conference_Location :
Tehran
Print_ISBN :
978-1-4577-0730-8
Electronic_ISBN :
978-964-463-428-4
