Power conversion apparatus and method and automobile

Details Power conversion apparatus and method and automobile Power conversion apparatus and method and automobile

2007-03-06

2010-02-09

Benson, Walter (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S599000

Reexamination Certificate

active

07659689

ABSTRACT:
An apparatus and method for supplying a polyphase (AC) alternating current motor with driving voltages. A conversion unit is coupled to phases of the polyphase AC motor and includes a plurality of switching devices and includes, in at least one phase, a first switching device between a bus of an AC power supply and an output terminal, a second switching device between a bus of a direct current (DC) power supply and the output terminal, and a third switching device between a common bus for the AC power supply and the DC power supply and the output terminal. Driving voltages for the polyphase AC motor are generated by selecting a voltage from among voltages having potential values corresponding to the AC power supply and the DC power supply, and the selected voltage is used to operate a switch of the plurality of switching devices.

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