Title :
Accuracy and Bandwidth Limits of Carrier Signal Injection-Based Sensorless Control Methods
Author :
García, Pablo ; Briz, Fernando ; Degner, Michael W. ; Díaz-Reigosa, David
Author_Institution :
Dept. of Elec., Comput. & Syst. Eng., Oviedo Univ., Gijon
Abstract :
This paper studies the performance limits of carrier signal injection-based sensorless control methods. When a high frequency carrier signal voltage is injected into a salient, AC machine, two types of signals are created that can be used to estimate the rotor position: the negative sequence carrier signal current and the zero sequence carrier signal components. The limitations of AC machine sensorless control using each of these signals is analyzed in this paper. The analysis focuses on two key performance metrics: 1) the accuracy; and 2) the bandwidth of the estimated position
Keywords :
AC machines; machine control; position control; rotors; carrier signal injection; high frequency carrier signal voltage; negative sequence carrier signal current; rotor position estimation; salient AC machine; sensorless control methods; zero sequence carrier signal component; AC machines; Bandwidth; Frequency estimation; Integrated circuit modeling; Pulse width modulation inverters; Sensorless control; Signal analysis; Stators; Virtual colonoscopy; Voltage;
Conference_Titel :
Industry Applications Conference, 2006. 41st IAS Annual Meeting. Conference Record of the 2006 IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
1-4244-0364-2
Electronic_ISBN :
0197-2618
DOI :
10.1109/IAS.2006.256631
