This content is not included in your SAE MOBILUS subscription, or you are not logged in.

A Novel Multiple DC-Inputs Direct Electric-Power Converter

Journal Article
ISSN: 1946-4614, e-ISSN: 1946-4622
Published April 20, 2009 by SAE International in United States
A Novel Multiple DC-Inputs Direct Electric-Power Converter
Citation: Yoshimoto, K., Maikawa, K., and Satou, S., "A Novel Multiple DC-Inputs Direct Electric-Power Converter," SAE Int. J. Passeng. Cars – Electron. Electr. Syst. 2(1):94-100, 2009,
Language: English


A new multiple dc-inputs direct electric-power converter (D-EPC) has been developed. It is placed between multiple dc power sources and an ac motor, eliminating the need for a dc/dc converter generally used in conventional converter/inverter systems. The D-PEC can improve the efficiency of the motor drive system with a more compact size. Its power distribution control is carried out by allotting voltage ratios to each of two different dc power sources on a time average basis. A new pulse-width-modulation (PWM) generation technique to drive switching devices in the D-EPC has also been developed. Tests have verified that the three-phase ac motor can be operated by controlling the power distribution between the two power sources.