First Supercapacitor Pulsed Power Supply System of the HL-3 Upgrade Project Successfully Handed Over

en.Wedoany.com Reported - On September 10, the 300 MVA/3000 MJ supercapacitor pulsed power supply system of the HL-3 upgrade project was successfully handed over. This is the first system to complete handover in the project, marking that the project is gradually transitioning from the equipment installation and subsystem static commissioning stage to the system joint commissioning stage, providing support for advancing fusion engineering.

Zhang Libo, President and Deputy Secretary of the Party Committee of the Southwestern Institute of Physics, and Chen Qingchuan, Vice President, attended the handover ceremony. Zhang Libo stated at the ceremony that the completion of the first system handover is the result of collaborative efforts by all participating units, accumulating experience and creating conditions for subsequent system joint commissioning. All parties will continue to consolidate responsibilities and ensure key milestones are achieved on schedule.

During the project construction period, the Southwestern Institute of Physics coordinated with China Nuclear Power Engineering Co., Ltd. (CNPE), China Nuclear Huaxing Construction Co., Ltd., China Nuclear Consulting Co., Ltd., China Electrical Equipment Group Co., Ltd., XJ Electric Co., Ltd. and other units, connecting system R&D, design, manufacturing, installation and commissioning. After more than 10 months of continuous construction, the 300 MVA/3000 MJ supercapacitor pulsed power supply system completed civil engineering renovation, equipment installation and subsystem static commissioning.

According to reports, the system is built as a supercapacitor energy storage system with a rated capacity of 300 MVA and a rated energy release of 3000 MJ, along with complete supporting facilities, including 36 supercapacitor compartments, 12 reactors, 6 sets of liquid cooling devices and related auxiliary facilities. The system features fast charge-discharge rates, high power density and a short construction period, and can meet the power supply requirements of the toroidal field coils of the HL-3 device, supporting high-parameter experimental operation of HL-3. It is known as the "super heart" of the "artificial sun."

This system is currently the world's largest supercapacitor pulsed energy storage system under construction in the fusion field, achieving large-scale application of domestically produced supercapacitors in the cutting-edge nuclear fusion field.

During the construction process, the engineering construction team, faced with complex working conditions and multi-disciplinary intersections, adopted sandbox simulation linked with BIM 3D models to conduct construction rehearsals, identifying and addressing spatial conflicts, process contradictions, pipeline collisions and resource mismatches in advance, and strengthening source control of technical and safety risks. At the same time, relying on a digital management system, the project integrated risk pre-control and closed-loop improvement throughout the entire construction process.

This system handover opened up the key link for system joint commissioning of the HL-3 upgrade project, laying the hardware foundation for subsequent pulsed operation tests of the fusion device. Next, all parties involved in the project will advance system joint commissioning and other work in an orderly manner to ensure the project goals are achieved as planned.