Yuzhe Xu

Title: Yuzhe Xu: Innovator in Hybrid Modular Multilevel Converters

Introduction

Yuzhe Xu is a prominent inventor based in Hangzhou, China. He has made significant contributions to the field of electrical engineering, particularly in the development of hybrid modular multilevel converters (MMC). With a total of 2 patents, his work focuses on enhancing the efficiency and reliability of DC fault processing methods.

Latest Patents

Yuzhe Xu's latest patents include two innovative designs aimed at improving the performance of hybrid MMCs. The first patent, titled "Submodule hybrid MMC with low full-bridge ratio and DC fault processing method thereof," introduces a method to prevent energy from the AC side from entering a DC system during fault conditions. This is achieved by creating a three-phase interphase short circuit at the AC side of the converter, which significantly reduces the number of full-bridge sub-modules needed for effective DC fault processing. The design ensures that the fault duration does not exceed 30 ms, minimizing the impact on the AC system.

The second patent, "Resistive sub-module hybrid MMC and direct current fault processing strategy thereof," presents a strategy to prevent fault current from entering a DC system by creating a three-phase earthing short circuit on the AC side during fault processing. This approach also reduces the number of power electronic devices required, while maintaining a fast fault processing speed with a duration of less than 60 ms. Both patents highlight Yuzhe Xu's commitment to reducing costs and enhancing the engineering value of high-voltage flexible DC transmission systems.

Career Highlights

Yuzhe Xu is affiliated with Zhejiang University, where he continues to advance research in electrical engineering. His innovative work has garnered attention in the academic and engineering communities, contributing to the development of more efficient power transmission systems.

Collaborations

Yuzhe Xu collaborates with notable colleagues, including Zheren Zhang and Zheng Xu. Their combined expertise fosters a dynamic research environment that drives innovation in the field.

Conclusion

Yuzhe Xu's contributions to hybrid modular multilevel converters and DC fault processing methods demonstrate his significant impact on electrical engineering. His patents not only enhance system efficiency but also reduce costs, showcasing the practical applications of his innovations.