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On January 10-11, 2023, the Forum on Operation and Regulation of Transformation Equipment in Urban Smart Grid, co-hosted by Tsinghua University, Zhejiang University, Hefei University of Technology, Imperial College London, and Cardiff University, with media support from the Journal Center of China Electric Power Research Institute, was successfully held on line. Aim to promote the carbon-neutral process of urban energy systems in China and the UK, the forum shared the latest results of the joint research project “Interactive Operation and Elastic Regulation of Transformation Equipment in Urban Smart Grid funded by the National Natural Science Foundation of China and the British Engineering and Natural Sciences Research Council, and discussed the development and transformation strategy of urban smart grid and the main technical approaches to clean and re-electrified urban energy supply. The forum was chaired by Tim Green, a professor at Imperial College London and a fellow of the Royal Academy of Engineering.

On the first day of the forum, Professor Tim Green of Imperial College London and Professor Kang Chongqing, Dean of the Department of Electrical Engineering and Applied Electronics (EEA) of Tsinghua University delivered opening speeches successively. They reviewed the favourable cooperation between the Chinese and British teams in academic research and personnel training, and placed high expectations on this forum.

Prof. Tim Green and Prof. Kang Chongqing made opening speeches

In the keynote report session of the forum, Professor Goran Strbac of Imperial College London gave a report titled “Resilience Driven Planning and Operation of Urban Multi-energy Microgrids”, introducing strategies to improve the flexible operation and planning of urban smart grids.

Professor Goran Strbac made a report

Associate Professor Zhang Ning from EEA gave a report titled “District Multi-Energy Systems Security Rules Extraction and Operation Optimization”, introducing the elasticity quantification method, elasticity enhancement strategy and safe operation rule formulation method of smart urban power distribution.

Associate Professor Zhang Ning made a report

Professor Tim Green from Imperial College London gave a report titled “Root-Cause Analysis of Instability using Grey-Box Impedance Models”, introducing the stability challenges and analytical modeling methods faced by urban smart grids, including impedance models and Gray-box model, etc., and comparatively analyzed the impact of grid-following and grid-constructing inverters on stability.

Professor Tim Green gave a report

Associate Professor Sun Kai from EEA gave a report titled “Resilience Enhancement for Urban Distribution Networks by Interlinking Converters of Microgrid Clusters”, introducing the key technology to improve the grid resilience through the optimization and regulation of interlinking converters of microgrid clusters.

Associate Professor Sun Kai made a report

Dr. Fei Teng, a senior lecturer at Imperial College London, gave a report titled “Cyber Resiliency of Urban Energy Systems”, introducing the resilience enhancement strategy of cyber-physical systems in urban energy systems.

Senior Lecturer Fei Teng gave a report

Yong Pei, a doctoral student from EEA, gave a report titled “The Capacity Value and Planning Framework for Backup Storage in Urban Energy Systems”, introducing a capacity estimation method and planning operation strategy for using communication base stations as backup energy storage in smart urban grids.

Doctoral student Yong Pei made a report

On the second day of the forum, Professor Tim Green from Imperial College London and Professor Ma Hao from Zhejiang University delivered opening speeches, introducing the research outline of China-British cooperation projects and the results of exchanges and cooperation between China and the UK, and looked forward to the success of the forum.

Prof. Tim Green and Prof. Hao Ma made opening speeches

In the keynote report session on the 2nd day, Professor Tim Green of Imperial College London gave a report titled “The Challenge for Protection of Low Fault Current”, introducing the impact of high proportion renewable energy access on short-circuit current of urban grids and feasible solutions.

Professor Tim Green gave a report

Dr. Stephen Robson from Cardiff University gave a report titled “Signal Processing and Machine Leaning to Analyze of Traveling Waves in Uncertain Networks”, introducing a traveling wave analysis and protection method based on signal processing and machine learning in uncertain networks.

Dr. Stephen Robson gave a report

Professor Ma Mingyao from Hefei University of Technology made a report entitled “Reliability and Failure Modes in Power Converters”, introducing the analysis and modeling strategies for reliability and failure scenarios of power electronic converters.

Professor Ma Mingyao made a report

Researcher Li Chushan from Zhejiang University made a report titled “Medium Voltage AC-DC Converter Technologies for Urban Energy Systems”, introducing the topology design, modulation strategy and series connection technology of medium voltage AC-DC converters in urban energy systems.

Researcher Li Chushan made a report

Researcher Xiang Xin from Zhejiang University made a report titled “Wide Voltage Control and Inherent Balance Modulation of Modular Multilevel DC converter for MVDC to LVDC Applications”, introducing the topology design, modulation strategy and control techniques for medium voltage DC-DC converters in urban grid.

Researcher Xiang Xin made a report

This forum provided a good communication platform for teachers and students of the five universities in China and the UK, and it was broadcast live on the official video account of “Proceedings of the Chinese Society for Electrical Engineering”. There were 10,300 cumulative online viewers in the two days, and this forum further strengthened the academic exchanges between China and the UK and promoted the carbon neutral process of urban energy systems.

Group photo of some online participants

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