Bus selection in multibus DC power systems

Robert S. Balog, Philip T Krein

Research output: Chapter in Book/Report/Conference proceedingConference contribution


DC power systems, like the ones proposed for use in future naval electric ships, can be made more reliable by using multiple buses for redundancy. Multiple buses provide multiple configuration options for supplying power to the load. Diode OR'ing with auctioneering diodes is perhaps the most common method to connect a load to multiple buses. Although the diode action is automatic and fault-tolerant, it results in ill-defined bus currents when the bus voltages are similar and the potential for uncontrolled switching in a faulted high-impedance system. Active switching and bus converters with auctioneering diodes are control techniques that overcome these limitations by providing full control over the bus selection process. Using local information in the form of the bus voltage, these techniques do not rely on a centralized controller, which improves system reliability. Dwell time is shown as a technique to stabilize the state-dependent switching.

Original languageEnglish (US)
Title of host publicationIEEE Electric Ship Technologies Symposium, ESTS 2007
Number of pages7
StatePublished - Sep 27 2007
EventIEEE Electric Ship Technologies Symposium, ESTS 2007 - Arlington, VA, United States
Duration: May 21 2007May 23 2007

Publication series

NameIEEE Electric Ship Technologies Symposium, ESTS 2007


OtherIEEE Electric Ship Technologies Symposium, ESTS 2007
Country/TerritoryUnited States
CityArlington, VA


  • Electric power systems
  • Electric ship power system
  • Power distribution control
  • Reconfiguration
  • Ships

ASJC Scopus subject areas

  • Computational Mechanics
  • Electrical and Electronic Engineering
  • Mechanical Engineering


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