Optimal design considerations of a bus converter for on-board distributed power systems

Seiya Abe, Masahiko Hirokawa, Masahito Shoyama, Tamotsu Ninomiya

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)447-455
Number of pages9
JournalJournal of Power Electronics
Issue number3
Publication statusPublished - May 20 2009

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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