Title :
A novel DC bus voltage sensorless PFC rectifier with improved voltage dynamics
Author :
Pandey, Ashish ; Singh, Bhim ; Kothari, Dwarka P.
Author_Institution :
Centre for Energy Studies, Indian Inst. of Technol., New Delhi, India
Abstract :
A novel DC bus voltage estimation algorithm with inherent cancellation of feedback voltage ripple is presented in this work. Design issues are discussed and simulation results are presented. Apart from reduction of output voltage sensor, the proposed estimation algorithm also eliminates twice the line frequency ripple from the feedback path allowing a voltage controller bandwidth comparable to line frequency, suitable for most front-end power factor corrected (PFC) converter applications.
Keywords :
AC-DC power convertors; feedback; parameter estimation; power factor correction; rectifying circuits; voltage control; AC-DC boost PFC converters; DC bus voltage sensorless PFC rectifier; controller design; estimation algorithm; feedback path; feedback voltage ripple cancellation; front-end power factor corrected converter; line frequency ripple elimination; output voltage sensor reduction; voltage controller bandwidth; voltage dynamics; Bandwidth; Feedback; Frequency conversion; Frequency estimation; Inductors; Power system economics; Reactive power; Rectifiers; Sensor systems; Voltage control;
Conference_Titel :
IECON 02 [Industrial Electronics Society, IEEE 2002 28th Annual Conference of the]
Print_ISBN :
0-7803-7474-6
DOI :
10.1109/IECON.2002.1187511
