| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem due to the fact that an output voltage is not obtained in accordance with a phase voltage command by the effect of the on-voltage of a switching element in a three-phase PWN conveter. SOLUTION: This correction circuit consists of a phase voltage command output circuit, a switching element on-voltage output circuit, a current does discriminating circuit, a circuit for outputting a correction voltage value with the current code and switching element turned on, and a circuit of outputting a difference between the phase voltage command and the correction voltage as a correction phase voltage command to control the gate of the three-phase PWM converter. |
