Electrical system for pulse-width modulated control of a power inverter using phase-shifted carrier signals and related operating methods
- Torrance, CA
Systems and methods are provided for pulse-width modulated control of power inverter using phase-shifted carrier signals. An electrical system comprises an energy source and a motor. The motor has a first set of windings and a second set of windings, which are electrically isolated from each other. An inverter module is coupled between the energy source and the motor and comprises a first set of phase legs coupled to the first set of windings and a second set of phase legs coupled to the second set of windings. A controller is coupled to the inverter module and is configured to achieve a desired power flow between the energy source and the motor by modulating the first set of phase legs using a first carrier signal and modulating the second set of phase legs using a second carrier signal. The second carrier signal is phase-shifted relative to the first carrier signal.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-07NT43123
- Assignee:
- GM Global Technology Operations LLC (Detroit, MI)
- Patent Number(s):
- 8,115,433
- Application Number:
- US patent applicaiton 12/236,172
- OSTI ID:
- 1036714
- Country of Publication:
- United States
- Language:
- English
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