A Series Partial Power Converter Based on Dual Active Bridge Converter for Residential Battery Energy Storage System
Naser Hassanpour, Andrei Blinov, Andrii Chub, Dmitri Vinnikov, Omar Abdel‐Rahim
Abstract
Conventional Full Power DC-DC Converters (FPC) which process whole power between their input/output, are close to their limits in terms of efficiency and power density. One of the most promising solutions to overcome these limits is Partial Power Converters (PPCs). In this paper, a Series PPC (S-PPC), which connects a Residential Battery Energy Storage System (RBESS) to a DC-bus is introduced. In the proposed converter, in its critical point, just 27% of the overall power is processed. Application of a Dual Active Bridge (DAB) converter with bidirectional/bipolar Current Source (CS) port enables the buck-boost operation of the S-PPC in both charge and discharge operation mode. So, the processed power is further decreased. Simulations are done in PSIM to validate the mathematical analysis.