Patent ID: 11863065
Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for controlling a power module, comprising:
configuring N cells in cascade connection, where N is a positive integer equal to or greater than 2, wherein each cell comprises a bidirectional switching unit and a non-controlled rectifier bridge and the bidirectional switching unit is connected to central points of two bridge arms of the non-controlled rectifier bridge; and
controlling each cell to operate in one of three operating modes of a modulation mode, a bypass mode, and a non-controlled rectifying mode, wherein among the N cells, m1 cells operate in the bypass mode, where 0≤m1≤M1; m2 cells operate in the non-controlled rectifying mode, where 0≤m2≤M2; m3 cells operate in the modulation mode and can realize power factor correction, where 0<m3; wherein m1+m2+m3=N, M1 is the number of cells allowing bypass in the system, and M2 is the number of cells allowing non-controlled rectification in the system.