Title :
Rotor position estimation of AC machines using the zero sequence carrier signal voltage
Author :
Briz, Fernando ; Degner, Michael W. ; García, Pablo ; Guerrero, Juan M.
Author_Institution :
Dept. of Elec., Comput. & Syst. Eng., Oviedo Univ., Spain
Abstract :
This paper analyzes the sensorless control of AC machines based on the zero sequence voltage generated by the injection of a carrier signal voltage. The analysis focuses on rotor position estimation (tracking of rotor-position-dependent saliencies) but the methods discussed apply equally to flux position estimation (tracking of flux-dependent saliencies). Analysis of relevant aspects, like selection of the carrier signal frequency, measurement of the zero sequence carrier signal voltage, and decoupling of saturation-induced saliencies are included.
Keywords :
AC machines; machine control; parameter estimation; rotors; voltage measurement; AC machine sensorless control; carrier signal frequency; flux position estimation; flux-dependent saliency tracking; rotor position estimation; rotor-position-dependent saliency tracking; saturation-induced saliency decoupling; voltage measurement; zero sequence carrier signal voltage; AC machines; Current measurement; Electric variables measurement; Frequency estimation; Frequency measurement; Inverters; Rotors; Signal analysis; Stators; Voltage;
Conference_Titel :
Industry Applications Conference, 2004. 39th IAS Annual Meeting. Conference Record of the 2004 IEEE
Print_ISBN :
0-7803-8486-5
DOI :
10.1109/IAS.2004.1348582
