Abstract
Aiming at the problem of excessive circulating current in modular multilevel converter (MMC) and low transmission efficiency of the dual active bridge (DAB) converter, A new control strategy of power electronic transformer (PET) based on MMC is proposed. The topology of PET is analyzed, A circulating current controller is added in input-level to realize that the system is in the unit power operation, circulating current of arm is effectively suppressed and capacitor voltage of submodules (SM) is balanced. In DAB converter, the minimizing leakage inductance current RMS control with variable parameters is used to stabilize DC-DC output voltage and improve the transmission efficiency of ISOP converter. Simulation results verify the correctness and effectiveness of the proposed control strategy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
