VIRTUAL OPERATION METHOD FOR INVERTER FOR ELECTRIC VEHICLE

摘要

PURPOSE: A virtual operation method is provided to check the abnormality and stability of operation of inverter by providing an electric control signal required for driving the inverter and checking an interface signal between the inverter and the peripheral equipment. CONSTITUTION: A virtual operation method comprises a step of measuring a motoring of an electric vehicle by measuring a three-phase pulse width modulation signal of a micro controller by using an oscilloscope(7), replacing the signal of an encoder arranged in a motor, with pulse wave through the use of a function generator(6), and checking whether the inverter recognizes the rotation direction and speed of the motor; and a step of performing a charging test by supplying power to a resistive load, through a variac(10) and measuring the waveform of the input voltage and current through a current amplifier(8).