Title :
Digitally controlled peak current mode parallel DC-DC converter for HVDC system
Author :
Kurokawa, Fujio ; Kajiwara, Kagemasa ; Maruta, Hidenori ; Shibata, Yoshitaka ; Yamabe, Y. ; Tanaka, T. ; Hirose, Keikichi
Author_Institution :
Nagasaki Univ., Nagasaki, Japan
Abstract :
The purpose of this paper is to present the demonstration of digitally controlled peak current mode parallel dc-dc converter for the higher voltage direct current (HVDC) system. The peak current mode control circuit is only composed of the RC integrator and comparator. It can detect the peak current in real time. A prototype uses 800W phase-shifted full-bridge zero volt switching (ZVS) dc-dc converter. The digital control circuit is implemented by the field programmable gate array (FPGA) except the A-D conversion of output voltage. In this paper, the prototype tests the transient response by the experiment. Experimental results show that the prototype has superior transient response and it is suitable for switching power supplies for the HVDC system.
Keywords :
DC-DC power convertors; HVDC power convertors; comparators (circuits); digital control; electric current control; field programmable gate arrays; transient response; zero voltage switching; FPGA; HVDC system; RC integrator; ZVS; comparator; digital control circuit; field programmable gate array; higher voltage direct current system; parallel DC-DC converter; peak current mode control circuit; phase-shifted full-bridge zero volt switching; power 800 W; switching power supplies; transient response; Convergence; Delays; Digital control; HVDC transmission; Prototypes; Switches; Transient response; HVDC; digital control; parallel dc-dc converters; peak current mode;
Conference_Titel :
Power Engineering, Energy and Electrical Drives (POWERENG), 2013 Fourth International Conference on
Conference_Location :
Istanbul
DOI :
10.1109/PowerEng.2013.6635857
