公开(公告)号：US11038432B2

公开(公告)日：2021-06-15

申请号：US16616007

申请日：2018-04-09

申请人： Mitsubishi Electric Corporation

发明人： Takuya Kajiyama ,  Takaharu Ishibashi ,  Zhiqing Yang

IPC分类号： H02M3/335 ,  H02M1/08 ,  H02M1/00

摘要： Provided is a power conversion device including a power converter for performing power conversion between primary-side DC voltage and secondary-side DC voltage, and a control device for controlling the power converter in accordance with a command value, wherein the control device generates a primary-side duty for a primary-side bridge circuit, a secondary-side duty for a secondary-side bridge circuit, and a phase shift amount between the primary-side bridge circuit and the secondary-side bridge circuit, on the basis of a solution of an optimization problem for minimizing a peak absolute value of current flowing through the transformer, under a constraint condition that zero voltage switching operation is achieved, at an operation point based on the command value, thus achieving zero voltage switching operation and suppressing increase in conduction loss, without increase in the number of components.