Title :
Modified Interleaved Current Sensorless Control for Three-Level Boost PFC Converter With Considering Voltage Imbalance and Zero-Crossing Current Distortion
Author :
Hung-Chi Chen ; Jhen-Yu Liao
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
The three-level boost power factor correction (PFC) converter has advantages of lower inductor current ripple and lower switch withstanding voltage compared with the boost PFC converter. Interleaved pulsewidth modulation had been used in the multiphase boost PFC converter. In the literature, interleaved current sensorless control (ICSC) for the multiphase boost PFC converters had been proposed. In this paper, the behavior of the three-level boost PFC converter is first analyzed. The results show that three-level converter has the same average equation as the interleaved boost PFC converter. Then, ICSC is modified for the three-level boost PFC converter with considering the voltage imbalance and the zero-crossing current distortion. The proposed modified ICSC (MICSC) is implemented in a field-programmable gate array board. Simulation results and experimental results are also provided to validate the proposed MICSC.
Keywords :
PWM power convertors; electric current control; power factor correction; MICSC; field-programmable gate array board; inductor current ripple; interleaved pulsewidth modulation; modified interleaved current sensorless control; multiphase boost PFC converter; power factor correction; switch withstanding voltage; three-level boost PFC converter; voltage imbalance; zero-crossing current distortion; Capacitors; Inductors; Pulse width modulation; Sensorless control; Sensors; Switches; Voltage control; Interleaved Current Sensorless Control; Interleaved current sensorless control (ICSC); PFC; power factor correction (PFC);
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2015.2435695