Inverter Control Device, Hybrid System, Electromechanical Integrated Unit, Electric Vehicle System, and Inverter Control Method
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United States of America
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Issued Date -
Nov 14, 2024
app pub date -
Mar 4, 2022
filing date -
Mar 4, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
An inverter control device includes: a carrier wave generation unit that generates a carrier wave; a carrier frequency adjustment unit that adjusts a frequency of the carrier wave; and a PWM control unit that performs pulse width modulation on a voltage command using the carrier wave and generates a PWM pulse signal for controlling an operation of an inverter. The carrier frequency adjustment unit determines a phase shift amount for reducing a voltage amplitude of a specific order component among order components of a voltage ripple superimposed on a DC voltage, and adjusts a frequency of the carrier wave so as to change a phase difference between the voltage command and the carrier wave according to the determined phase shift amount.
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