Soft-Switched Three-Port DC-DC Converter with Simple Auxiliary Circuit
Publication Name
IEEE Access
Abstract
In this paper, a new high efficiency soft-switching non-isolated three-port converter (TPC) is proposed. In the conventional TPC, three switches are required to process power in different directions between inputs and output. Providing soft-switching condition for all switches using a low number of auxiliary components is a challenging task. In this paper, the conventional TPC topology is modified by changing its structure and adding a simple auxiliary circuit such that all switches operate under soft-switching condition in all operating modes. To reduce the volume of the converter, the magnetic components are integrated using a coupled inductor in the auxiliary soft-switching cell. In this paper, various converter operating modes are presented, and design considerations are discussed. Finally, a prototype 200 W, 100 V converter is implemented in the laboratory, and the theoretical analysis is validated by the experimental results.
Open Access Status
This publication may be available as open access
Volume
9
Article Number
9417167
First Page
66738
Last Page
66750
Funding Number
2019M662356
Funding Sponsor
China Postdoctoral Science Foundation