@article{SONG2026, 
author = {Luhao SONG and Yushun ZHAO and Yu ZHOU and Dongsheng YU},
title = {Development and application of a comprehensive IPOS-DAB experimental platform for high-voltage DC conversion},
year = {2026},
journal = {Experimental Technology and Management},
volume = {43},
number = {8},
pages = {75-83},
keywords = {comprehensive experimental platform, IPOS-DAB converter, voltage equalization control, sliding mode control},
url = {https://www.sciopen.com/article/10.16791/j.cnki.sjg.2026.08.010},
doi = {10.16791/j.cnki.sjg.2026.08.010},
abstract = {ObjectiveIn high-voltage and high-power electrical energy conversion, conventional single-module experimental devices are often inadequate for supporting the teaching and research of multimodule series–parallel converter topologies and advanced nonlinear control strategies in electrical engineering. To bridge the gap between theoretical research and experimental education, this study develops an input-parallel output-series dual-active-bridge comprehensive experimental platform for high-voltage DC conversion applications.MethodsThe proposed platform adopts a flexible modular hardware architecture. An optimized triple-phase-shift modulation scheme is first implemented at the lower control layer to demonstrate key steady-state operating characteristics of the converter, including current stress reduction and zero-voltage switching. To evaluate the real-time computational capacity of the digital signal processor and its ability to capture dynamic high fidelity for complex nonlinear algorithms, a hierarchical super-twisting sliding mode (HSTSM) voltage balancing strategy is further implemented on the platform.ResultsExperimental results demonstrate stable operation of the platform over the full power range. The platform accurately reproduces and captures the transient characteristics of the system under challenging operating conditions, including input voltage fluctuations and load step changes. In addition, the effectiveness of the embedded HSTSM strategy is validated experimentally. The proposed control method achieves rapid and robust voltage equalization among multiple modules within 15 ms while significantly reducing transient voltage deviations.ConclusionsThe developed platform provides a practical experimental environment for demonstrating multimodule converter topologies and nonlinear control methods. It facilitates students’ understanding of cutting-edge power electronics technologies through a progressive experimental scheme and serves as a reliable hardware platform for the secondary development and verification of advanced control algorithms.}
}