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Optimal Design Considerations of a Bus Converter for On-Board Distributed Power Systems  

Abe, Seiya (Dept. of Electrical and Electronic Systems Engineering, Kyushu University)
Hirokawa, Masahiko (The Devices Development Center of TDK Corporation)
Shoyama, Masahito (Dept. of Electrical and Electronic Systems Engineering, Kyushu University)
Ninomiya, Tamotsu (Nagasaki University)
Publication Information
Journal of Power Electronics / v.9, no.3, 2009 , pp. 447-455 More about this Journal
Abstract
The power supply systems, which require low-voltage / high-current output has been changing from the conventional centralized power system to a distributed power system. The distributed power system consists of a bus converter and POL. The most important factor is the system stability in bus architecture design. The overlap between the output impedance of a bus converter input impedance of POL causes system instability and has been an actual problem. By increasing the bus capacitor, the system stability can be easily improved. However, due to limited space on the system board, the increasing of bus capacitors is impractical. An urgent solution of this issue is strongly desired. This paper presents the output impedance design for on-board distributed power system by means of three control schemes of a bus converter. The output impedance peak of the bus converter and the input impedance of the POL are analyzed and then conformed experimentally for stability criterion. Furthermore, the design process of each control schemes for system stability is proposed.
Keywords
Distributed power system; Stability; Input impedance; Output impedance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 0  (Related Records In Web of Science)
Times Cited By SCOPUS : 0
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