Invention Grant
US08115433B2 Electrical system for pulse-width modulated control of a power inverter using phase-shifted carrier signals and related operating methods 有权
使用相移载波信号对功率逆变器进行脉宽调制控制的电气系统及相关操作方法

Electrical system for pulse-width modulated control of a power inverter using phase-shifted carrier signals and related operating methods
Abstract:
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.
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