METHOD AND APPARATUS FOR CONTROLLING CONVERTER IN FULL CELL VEHICLE

摘要

An apparatus for controlling a converter in a fuel cell vehicle uses a current control value generated based on a voltage of a DC terminal of an inverter as a reference value and generates a current reference signal according to a change rate based on the reference value. The final reference signal for generating a PWM signal is outputted by compensating the current reference signal based on a current of an output terminal of the converter. Also, the converter is controlled by generating the PWM signal with a duty ratio by increasing a peak by amplifying a triangular wave signal and comparing the amplified triangular wave signal with the final reference signal which is compensated according to the change rate of the current reference signal. [Reference numerals] (110) Composite control apparatus (power control); (120) Signal change rate amplifying unit based on a current; (140) Current controller (Op-amp + RC); (150) Triangular wave generating unit (RC Constant); (160) Triangular wave amplifying unit (BJT+RC); (30) Large bi-directional converter (BHDC); (60) Inverter; (AA) Comparator (generating a duty); (BB) Current detecting unit; (CC) Inductor current offset; (DD) Current reference signal