Special Session Introduction

To construct the new power system and achieve the "double carbon" goal, the DC transmission/distribution technologies have played an important role in developing renewable energy for advantages such as high flexibility in operation, large transmission capability and easier integration of new energy into the power grid. However, unlike the AC grid with a large inertia and clear responses to fault, the DC transmission/distribution network has a low inertia and will change very fast when fault occurs, and has much more complex transient responses due to the nonlinear characteristics of converters. Thus, introducing novel techniques of DC fault analysis, power quality analysis and relay protection is of great significance in facilitating the safe, stable operation of the transmission/distribution system.

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Technical Outline of the Session:

This special session focuses on a hot research topic - fault analysis, power quality and relay protection scheme of DC transmission/distribution network. DC transmission/distribution technology has shown many advantages to power system. In transmission network, greater capacity can be transmitted with lower power losses using DC technology. In distribution network, using DC technology can easily connect distributed resources to power grid and control the power flow more flexibly. However, the DC transmission/distribution network has much more complex transient responses and low tolerance to faults. Novel techniques and theories in related area are encouraged in this special session. Topics of interest include (but are not limit to): converter topologies, control, fault current/voltage calculation, fault analysis, power quality analysis, design of protection scheme in DC transmission/distribution network, etc.

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Special Session Organizers

Yangyang He, Research Associate, Shanghai Jiao Tong University

Dr. Yangyang He received the B.S. degree in Electrical Engineering from Shandong University, Jinan, China, in 2016 and the Ph.D. degree in Electrical Engineering from Shanghai Jiao Tong University, Shanghai, China, in 2021. Currently, he is a research associate with the College of Smart Energy, Shanghai Jiao Tong University, Shanghai, China. His research interests include simulation, control and protection of VSC-based DC system, ship integrated power system and application of DC in integrated energy system.

Xiaoyang Ma, Associate Professor, Sichuan University

Dr. Xiaoyang Ma received the B.S. and Ph.D. degrees in Electrical Engineering from Sichuan University, Chengdu, China, in 2013 and 2018, respectively. Currently, he is an associate professor with the College of Electrical Engineering, Sichuan University, Chengdu, China. His research interests include power quality analysis and renewable energy.