Title :
A High Step-Up DC to DC Converter Under Alternating Phase Shift Control for Fuel Cell Power System
Author :
Longlong Zhang ; Dehong Xu ; Guoqiao Shen ; Min Chen ; Ioinovici, Adrain ; Xiaotian Wu
Author_Institution :
Inst. of Power Electron., Zhejiang Univ., Hangzhou, China
Abstract :
This paper investigates a novel pulse width modulation (PWM) scheme for two-phase interleaved boost converter with voltage multiplier for fuel cell power system by combining alternating phase shift (APS) control and traditional interleaving PWM control. The APS control is used to reduce the voltage stress on switches in light load while the traditional interleaving control is used to keep better performance in heavy load. The boundary condition for swapping between APS and traditional interleaving PWM control is derived. Based on the aforementioned analysis, a full power range control combining APS and traditional interleaving control is proposed. Loss breakdown analysis is also given to explore the efficiency of the converter. Finally, it is verified by experimental results.
Keywords :
DC-DC power convertors; PWM power convertors; fuel cell power plants; power generation control; voltage multipliers; APS control; PWM scheme; alternating phase shift control; boundary condition; fuel cell power system; full power range control; high step-up DC to DC converter; interleaving PWM control; light load; loss breakdown analysis; pulse width modulation scheme; two-phase interleaved boost converter; voltage multiplier; voltage stress reduction; Boundary conditions; Capacitors; Control systems; Fuel cells; Inductors; Stress; Voltage control; Boost converter; fuel cell; interleaved; loss breakdown; voltage multiplier;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2014.2320290
