用于双向功率流的输入串联输出串联DAB DC-DC变换器的电压平衡方案

The dual-active-bridge (DAB) dc–dc converter with the input-series output-series (ISOS) structure is applicable for flexible interconnection of a power grid, where both the input and output sides are high voltage. However, the bidirectional series structure and bidirectional power flow pose significant challenges to voltage balance between modules. To address the issue, this letter proposes a volt...