| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a triggering method and a device for a power conversion device capable of precisely performing DC voltage response confirmation of a DC circuit at the time of triggering. <P>SOLUTION: In the triggering device of a power conversion device, one end of a power converter is connected to an AC side while the other end is connected to a DC side, with a DC capacitor provided between DC side terminals. It includes initial charging means which applies an AC power source to the power converter for initially charging the DC capacitor, a control device which contains a voltage controller that performs integrating operation with a difference between DC voltage command and a measured DC voltage, for performing ignition angle control of the power converter, trigger operation means which increases the DC voltage command for the voltage controller on time base for triggering the power converter, response confirmation means which, during a trigger process by the trigger operation means, measures a voltage difference between the DC voltage command and the measured DC voltage or a time lag between the DC voltage command and the measured DC voltage, for confirming control response, and integration element excluding means which excludes an integration element of the control device during the period measurement is made by the response confirmation means, not to cause it to function. <P>COPYRIGHT: (C)2012,JPO&INPIT |
