Special session proposal

Special session topic

Session scope

Chair(s)

Affiliation

01. Modeling, Control, Stability Analysis and  Application of New Energy and HVDC systems

HVDC transmission technology, particularly flexible HVDC, has emerged as a promising solution for grid interconnection and large-scale renewable energy integration in those regions far away from main power grids. However, the intricate interactions between the complex control dynamics of HVDC converters and renewable energy or power grids have given rise to significant stability challenges, posing a serious threat to the operational stability of new power systems. This special session will focus on, but not limited to the modelling, stability analysis, and stabilization control techniques as well as related equipment for new energy and HVDC systems, striving to offer practical and efficient solutions to address the diverse stability issues in the new energy and HVDC systems. The practical application for above topics is welcomed.

Yunfeng Li
Xiao ZHOU

Changsha University of Science and Technology
China Electric Power Research Institute

02. Emerging and Selected Topics in DC Technologies for New Type Power Systems

A new type of power system dominated by new energy sources requires DC technology to continuously develop new functions and address emerging challenges. Against this background, new DC application scenarios are continuously emerging, including meshed flexible DC grids, actively supported renewable energy integration, flexible interconnection of distribution networks, offshore wind power DC transmission, large-scale multi-gigawatt renewable energy base power delivery, wide-frequency oscillation suppression in power-electronic-based power systems, and synchronous power supply for rail transit. Investigating the technological expansion of DC systems and their applications in these emerging scenarios is of considerable research significance and practical value for promoting the development of DC technology and the construction of next-generation power systems. This Special Session concentrates on the emerging and selected topics related to DC technology in new power systems, offering a comprehensive forum for in-depth discussion and exploration of cutting-edge advancements.

Qianhao Sun    

Beijing Jiaotong University   

03. Key Technologies and Development of Novel Equipment for the Transmission of Far-Offshore Wind Power Clusters

This special session focuses on frontier directions including novel transmission topologies for far-offshore wind clusters, compact and highly cost-effective converter equipment, coordinated control between offshore wind farm clusters and emerging DC systems, fault-clearing and protection strategies, and the design and construction practices of new demonstration projects for offshore wind power. By bringing together the latest advances and practical experience from both academia and industry, the topic aims to promote innovation in power export technologies, enhance the engineering maturity and large-scale deployment of next-generation converter equipment, and provide systematic support for the efficient and reliable grid integration of far-offshore wind power clusters.

Sui Peng
Jian Wang

China Southern Power Grid (CSG)

04. Simulation tool development technique and application for large AC-DC interconnected power systems/actual projects

Topics of interest include but are not limited to:
Modelling Techniques: High-fidelity modelling of MMC-HVDC, VSC-HVDC, and hybrid AC/DC system components for various simulation time-scales (EMT, electromechanical transient, long-term dynamic).
Simulation Algorithms & Performance: Novel numerical solvers, parallel and distributed computing techniques, real-time simulation hardware-in-the-loop (HIL) platforms, and cloud-based simulation architectures for large-scale systems.
Software Development & Integration: Software architecture design for modular and scalable simulators, co-simulation frameworks (e.g., connecting different simulators), standardisation of model interfaces, and user-friendly modelling environments.
Application-Oriented Case Studies: Practical application experiences of simulation tools in analysing stability, planning grid expansion with high renewable penetration, designing control/protection systems, and post-event analysis for actual AC/DC projects. Comparative studies of different simulation tools are also welcome.

Yizheng Xu

China Electric Power Research Institute

05. Energy Digitalization and Information Processing Mechanism for Battery Management in Dynamic Reconfigurable Battery Network

This special topic focuses on research into energy digitalization and information processing mechanism based on deep energy-information fusion. Its objectives are to: 
1) Investigate the transient and steady-state response characteristics of coupled battery–power electronics systems;
2) Develop intrinsically safe, intelligent battery module and network architectures;
3) Achieve optimized design of large-scale DRBN-BEST based battery energy storage systems.
Ultimately, this work aims to establish the theoretical foundation for next-generation dynamical reconfigurable battery storage systems that are highly efficient, safe, cost-effective, long-lasting, and broadly compatible.

Song Ci
Yanglin Zhou
Yushu Sun

Tsinghua University/
Tsinghua University/
Institute of Electrical Engineering, Chinese Academy of Sciences and University of Chinese Academy of Sciences

06. Frontier Topologies, Control, and Protection of Multi-Submodule Converter Valves for Flexible HVDC

Topics of interest include but are not limited to:
Hybrid MMC Conversion System and its Control：coordinated control of hybrid MMC/LCC structures; topology-control co-design for DC fault blocking, loss reduction, voltage utilization enhancement, and flexible adaptation to overhead-line and cable-based HVDC applications.
Module Thermal Analysis and Optimal Control of MMC: Electro-thermal coupling modelling of submodules, arms, and valve assemblies; junction-temperature estimation and thermal stress equalization; modulation and control strategies with explicit thermal constraints.
Grid-Forming Control of MMC Valves with Electromagnetic-Transient Stability Guarantees: Grid-forming strategies explicitly considering internal multi-submodule dynamics, arm energy buffering, and converter valve physical limits; EMT-consistent synchronization and voltage formation; stability enhancement for weak-grid, low-inertia, and multi-infeed flexible DC transmission systems.
Wide-Band Oscillation Suppression in Converter Valves and Their Connected AC/DC Networks: Mechanism and mitigation of wide-band oscillations arising from internal arm dynamics, valve parasitics, cable resonance, transformer interaction, and converter-grid coupling; impedance shaping and active damping methods beyond conventional small-signal control frameworks.
Fast Fault Identification and Protection for MMC Valves: Sub-millisecond discrimination of pole-to-pole, pole-to-ground, arm internal, and submodule faults using transient-waveform features, high-frequency signatures, and model-assisted inference; selective protection principles compatible with hybrid submodule topologies and fault-tolerant valve operation

Fujun Ma
Mingshen Li
Jinpeng Guo

Hunan Universtiy/
Tsinghua University/
Hohai University

07. Key technologies and applications for reliability enhancement of power transmission lines and equipment

This conference session will focus on high-voltage insulation systems, testing and monitoring, aging and diagnosis, health aspects, and environmental compatibility of power transmission equipment.

Zerui Li

Pengfei Meng

Sichuan University

08. Powering the Data Centre: Innovations in DC Power Supply Racks and Distribution Architectures

The explosive growth of AI computing is driving rack power densities from traditional 6kW to over 120kW, with future GPU architectures approaching 1MW per rack. Traditional multi-stage power architectures are inadequate to handle such extreme power densities and severe dynamic load fluctuations.To address this, High-Voltage Direct Current (HVDC) systems and localized DC power supply racks (800V to 48V/12V architectures) are becoming critical solutions. At the core of this power delivery revolution are advanced power semiconductor devices. This special session is curated to explore the entire technological spectrum. It begins with the fundamental device design, fabrication processes, and advanced packaging of advanced Silicon and Wide Bandgap (SiC/GaN) semiconductors, which are crucial for achieving extreme efficiencies (>98.3%). Furthermore, the session focuses on the cutting-edge "Computing-Cooling-Power Synergy" in AI data centers. We will explore high-efficiency topologies, multi-time-scale dynamic response strategies, and hybrid liquid cooling. The session aims to provide a comprehensive framework—from underlying device components to integrated cabinet systems—for next-generation green AI infrastructures.

Special Session Scope:

• Advanced Power Semiconductor Devices (Device Design, Fabrication Processes, and Advanced Packaging) • 800VDC/48VDC Power Supply Architectures and Topologies for High-Density AI Racks • Application of Wide Bandgap (SiC/GaN) Modules and Magnetic Integration • Computing-Cooling-Power Synergy Control and Multi-Time-Scale Dynamic Response • Energy Buffering for Severe GPU Load Fluctuations • Solid-State Transformers (SST) and Solid-State Circuit Breakers (SSCB) • Advanced Thermal Management: Hybrid Liquid Cooling and Phase-Change Thermal Storage

Gang Lyu

Zhenyu Shan

Beihang University