STEADY STATE CHARACTERISTICS OF A CURRENT-SOURCE INVERTER/DOUBLE-WOUND SYNCHRONOUS MACHINE SYSTEM FOR AC POWER SUPPLY

This paper presents a detailed steady state analysis of a novel dc to ac conversion system used as an ac power source in dc electric railway coaches. This system consists of a current-source inverter, a double-wound synchronous machine, a position sensor, and a control circuit. An equivalent circuit convenient for predicting the steady state behavior of the system is first derived. Based on this equivalent circuit the output voltage waveforms are then examined. It is shown that the voltage waveforms are nearly sinusoidal except that narrow spikes are superposed on them during commutation of the thyristors. As to armature reaction in the double-wound synchronous machine, it is shown that a direct reaction appears which affects the voltage regulation of the system. Finally, a method for keeping the output voltage and frequency constant is discussed.

• Supplemental Notes:
  • Conference Record IAS Annual Meeting, 14th, Paper presented Cleveland, Ohio, September 30-October 5, 1979.
• Corporate Authors:

  Institute of Electrical and Electronics Engineers (IEEE)

  3 Park Avenue, 17th Floor
  New York, NY  United States  10016-5997
• Authors:
  • Kataoka, T
  • Watanabe, E H
• Conference:
  • Conference Record IAS Annual Meeting, 14th, Paper presented Cleveland, Ohio, September 30-October 5, 1979.
• Publication Date: 1979

Media Info

• Pagination: p. 460-466

Subject/Index Terms

• TRT Terms: Auxiliary power units; Converters (Electricity); Electric power conditioning; Electric power supply; Inverters; Voltage regulation
• Old TRIS Terms: Auxiliary power; Converters
• Subject Areas: Energy; Railroads;

Filing Info

• Accession Number: 00316240
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Sep 16 1980 12:00AM