| 摘要 |
PURPOSE:To easily and accurately perform compensation by adding an offset current to a current value in a discrete-time system discriminating a current direction and performing the dead time compensation. CONSTITUTION:A power converter control device is constituted of a control arithmetic part, dead time compensation part 2, PWM signal modulation part, dead time setter part and a current detector. This compensation part 2 is provided with registers 2a to 2b, zero cross detecting circuit 2c, current direction detecting circuit 2d, selector 2e and arithmetic parts 2g, 2m. As the result, being based on a voltage command value, by obtaining a PWM signal to be supplied to an inverter setting the dead time, switching action is performed obtaining a faithful output. |
