Title :
Voltage sensorless bidirectional three-phase unity power factor AC-DC converter
Author :
Ghodke, Ajit A. ; Chatterjee, Kishore
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Bombay, Mumbai, India
Abstract :
AC-to-DC converters based on one-cycle control (OCC) exhibit instability in current control when operating in the inverting mode. A modified OCC based controller has been presented in literature which overcomes the above-mentioned limitation. But, it needs to sense instantaneous phase voltages to generate fictitious current components. In an effort to dispense with the voltage sensors of the modified OCC based bidirectional converter, a new voltage sensorless one cycle controlled bidirectional ac to dc converter is proposed in this paper which utilizes instantaneous power and phase voltage estimation. The effectiveness of the proposed scheme is validated through detailed simulation studies.
Keywords :
AC-DC power convertors; electric current control; power factor; current control; modified OCC based controller; one-cycle controlled convertor; phase voltage estimation; phase voltages; power voltage estimation; voltage sensorless bidirectional three phase unity power factor AC-DC converter; voltage sensors; AC-DC power converters; Pulse width modulation; Reactive power; Sensors; Switches; Voltage control; AC-DC converters; Direct Power Control (DPC); Instantaneous active and reactive power estimation; One Cycle Control (OCC); PWM rectifier; Phase Locked Loop (PLL); Voltage Oriented Control (VOC); sensorless control;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2010 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-5286-6
Electronic_ISBN :
978-1-4244-5287-3
DOI :
10.1109/ECCE.2010.5617890
