Electric power conversion system
摘要
說(shuō)明書
Based on the above-described definition of the upper arm and the lower arm, the arm (S1 arm) including the switching element S1 and the diode D1 is an upper arm when viewed from the first and second step-up/step-down circuits CNV1, CNV2. The arm (S2 arm) including the switching element S2 and the diode D2 is a lower arm when viewed from the first and second step-up/step-down circuits CNV1, CNV2. In addition, the arm (S3 arm) including the switching element S3 and the diode D3 is an upper arm when viewed from the first step-up/step-down circuit CNV1 and is a lower arm when viewed from the second step-up/step-down circuit CNV2.
The PWM signal PWM1 for the first step-up/step-down circuit CNV1 and the PWM signal PWM2 for the second step-up/step-down circuit CNV2 are assigned to the switching elements S1 to S3 on the basis of the above-described distribution of functions of the upper and lower arms. The CNV controller 13 executes the above-described phase shift over the PWM signals PWM1, PWM2.
