Title :
New commutation methods in switched reluctance motors based on active phase vectors
Author :
Ramani, K.R. ; Ehsani, M.
Author_Institution :
Power Electron. Lab., Texas A&M Univ., College Station, TX, USA
Abstract :
A new sensorless commutation scheme based on the terminal measurements of the active phase coil is presented in this paper. In contrast to the conventional method of commutation based on rotor position, this new technique is based on a vector of observable parameters of the active phase coil. Based on the mechanism of electromagnetic energy conversion, the effect of flux linkage in the active phase coils is analysed to derive a commutation strategy. A digital implementation of the sensorless scheme is presented in this paper
Keywords :
commutation; digital control; machine control; microcontrollers; parameter estimation; power engineering computing; reluctance motors; switching circuits; active phase coil; active phase vectors; digital implementation; electromagnetic energy conversion; flux linkage; microcontrollers; observable parameters; sensorless commutation; switched reluctance motors; terminal measurements; Circuits; Coils; Commutation; Couplings; Electromagnetic analysis; Electromagnetic measurements; Energy conversion; Inductance; Phase estimation; Phase measurement; Reluctance machines; Reluctance motors; Rotors; Switches;
Conference_Titel :
Power Electronics Specialists Conference, PESC '94 Record., 25th Annual IEEE
Conference_Location :
Taipei
Print_ISBN :
0-7803-1859-5
DOI :
10.1109/PESC.1994.349691
