METHOD AND APPARATUS FOR CONTROLLING CONVERTER IN FULL CELL VEHICLE

摘要

A method and apparatus for controlling a converter of a fuel cell vehicle that uses a power control value generated based on an inverter DC terminal voltage as a reference value, and generates a current reference signal based on the reference value is provided. More specifically, the method and apparatus output a final reference signal that generates a pulse width modulation (PWM) signal by compensating for the current reference signal based on output terminal current of the converter. A peak value is then increased by amplifying a triangular wave signal, and the amplified triangular wave signal and the compensated final reference signal according to the current reference signal change rate are compared. A PWM signal having a predetermined duty ratio is then generated to control the converter.

主权项

1. An apparatus for controlling a converter of a fuel cell vehicle, comprising:
a first amplifier configured to utilize a power control value for power control of the converter as a reference value, and generate a current reference signal based on the reference value; a current sensor configured to detect output terminal current of the converter; a current controller configured to compare the current reference signal and the detected output terminal current to output a final reference signal; a triangular wave generator configured to generate a triangular wave; a second amplifier configured to amplify the generated triangular wave signal; and a comparison unit configured to compare the amplified triangular wave signal and the final reference signal to output a pulse wave signal for controlling the converter.