Title :
Optimal design of bus converter in on-board distributed power architecture
Author :
Abe, Seiya ; Ninomiya, Tamotsu ; Hirokawa, Masahiko
Author_Institution :
Dept. of EESE, Kyushu Univ., Fukuoka
Abstract :
The power supply system which requires the low-voltage / high-current output has been changing from conventional centralized power system to distributed power system. The distributed power system consists of bus converter and POL. The most important factor is the system stability in bus architecture design. The overlap between the output impedance of bus converter and input impedance of POL causes system instability, and it has been an actual problem. Increasing the bus capacitor, system stability can be reduced easily. However, due to the limited space on the system board, increasing of bus capacitors is impractical. The urgent solution of the issue is desired strongly. This paper presents the output impedance design for on-board distributed power system by means of three control schemes of bus converter. The output impedance peak of the bus converter and the input impedance of the POL are analyzed, and it is conformed by experimentally for stability criterion. Furthermore, the design process of each control schemes for system stability is proposed.
Keywords :
power convertors; power system stability; bus architecture design; bus capacitors; centralized power system; on-board distributed power architecture; optimal bus converter design; system instability; system stability; Capacitors; Control systems; Impedance; Power supplies; Power system analysis computing; Power system control; Power system stability; Power systems; Stability analysis; Stability criteria;
Conference_Titel :
Power Electronics, 2007. ICPE '07. 7th Internatonal Conference on
Conference_Location :
Daegu
Print_ISBN :
978-1-4244-1871-8
Electronic_ISBN :
978-1-4244-1872-5
DOI :
10.1109/ICPE.2007.4692387