Research on the application of PCU devices in double-deck high-speed EMUs

Double-deck electric multiple units (EMUs) have become a key focus for research, development, and application among major manufacturers worldwide due to their significant advantages in transport capacity and the economic efficiency of operation. To meet the top-level technical requirements for China’s high-speed double-deck EMU systems, this article presents the design of a power converter unit (PCU) traction converter tailored for high-speed double-deck EMUs, leveraging the high integration, intelligence, high power density, and user-friendly features of next-generation PCU component technology. The article elaborates on the characteristics of PCU devices and their performance testing, as well as the design methodology of the PCU traction converter. Experimental results demonstrate that both the PCU devices and the converter exhibit excellent performance, reliable operation, and full compliance with the overall design and application requirements.