Title :
Modified ATO algorithm based high accuracy RDC using pulse excitation
Author :
Sivappagari, Chandra Mohan Reddy ; Konduru, Nagabhushan Raju
Author_Institution :
Dept. of ECE, JNTUA Coll. of Eng. (Autonomous), Pulivendula, India
Abstract :
Most important requirement in the modern control industry applications is the measurement of motor rotor shaft angle. Resolvers are absolute angular position measurement transducers, but it requires some signal processing techniques to improve the tracking accuracy of the angle. This paper discusses the mathematical design analysis of Resolver to Digital Converter (RDC) using modified Angle Tracking Observer (ATO) algorithm with pulse excitation. The proposed software based RDC system is implemented in MATLAB® SIMULINK® and the angle tracking performance is verified through various ranges of speed. The results show that the designed RDC system provides better tracking performance with negligible error and it reduces the hardware cost, weight and size.
Keywords :
angular measurement; control engineering computing; cost reduction; observers; rotors (mechanical); shafts; signal processing; tracking; transducers; ATO algorithm; MATLAB SIMULINK; absolute angular position measurement transducers; angle tracking observer algorithm; control industry applications; hardware cost reduction; mathematical design analysis; motor rotor shaft angle measurement; pulse excitation; resolver to digital converter; resolvers; signal processing techniques; size reduction; software based RDC system; tracking accuracy improvement; weight reduction; Accuracy; Demodulation; Rotors; Shafts; Signal resolution; Silicon compounds; Software; Resolver; angle position transducer; angle tracking observer technique; resolver to digital converter; synchronous demodulator;
Conference_Titel :
Automation, Control, Energy and Systems (ACES), 2014 First International Conference on
Conference_Location :
Hooghy
Print_ISBN :
978-1-4799-3893-3
DOI :
10.1109/ACES.2014.6808034
