Integrated inverter for driving multiple electric machines

Details Integrated inverter for driving multiple electric machines Integrated inverter for driving multiple electric machines

2006-04-04

2006-04-04

Duda, Rina (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S727000, C318S254100, C318S132000, C318S434000, C363S042000, C363S047000

Reexamination Certificate

active

07023171

ABSTRACT:
An electric machine drive (50) has a plurality of inverters (50a, 50b) for controlling respective electric machines (57, 62), which may include a three-phase main traction machine (57) and two-phase accessory machines (62) in a hybrid or electric vehicle. The drive (50) has a common control section (53, 54) for controlling the plurality of inverters (50a, 50b) with only one microelectronic processor (54) for controlling the plurality of inverters (50a, 50b), only one gate driver circuit (53) for controlling conduction of semiconductor switches (S1–S10) in the plurality of inverters (50a, 50b), and also includes a common dc bus (70), a common dc bus filtering capacitor (C1) and a common dc bus voltage sensor (67). The electric machines (57, 62) may be synchronous machines, induction machines, or PM machines and may be operated in a motoring mode or a generating mode.

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New inverter-driven design and control method for two-phase induction motor drives, IEE Pro-Electr. Power Appl., vol. 143, No. 6, Nov. 1996, pp. 458-466.

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