Integrated Inverter For Driving Multiple Electric Machines

Patent · Tue Apr 04 00:00:00 EDT 2006

OSTI ID:880255

Su, Gui-Jia ^[1]; Hsu, John S ^[2]

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1. Knoxville, TN
2. Oak Ridge, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• Assignee: UT-Battelle LLC (Oak Ridge, TN)
• Patent Number(s): 7,023,171
• Application Number: 10/706256
• OSTI ID: 880255
• Country of Publication: United States
• Language: English