| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a control device for a power converter that improves accuracy of a control system and achieves stabilization of the control system in a PWM control system that performs PWM control by referring to a voltage instruction phase and determines a switching pattern for a switching element. <P>SOLUTION: A voltage instruction phase/amplitude calculation part 1j, to which a voltage instruction 1i and a rotation coordinate conversion phase signal 1c are input, calculates its vector phase angle; performs low-pass filter processing on this vector phase angle and adds the signal after the processing to the rotation coordinate conversion phase signal 1c; and transmits the signal 1k after the addition and voltage instruction amplitude 1l to a synchronous PWM control part 1m. This synchronous PWM control part 1m performs synchronous PWM control after obtaining the input voltage instruction phase 1k and the input voltage instruction amplitude 1l, and outputs a switching instruction 1a to a switching element. <P>COPYRIGHT: (C)2012,JPO&INPIT |
