Beijing International Urban Rail Transit Exhibition and Summit Forum is supported by the National Development and Reform Commission, the Ministry of Industry and Information Technology, the Ministry of Housing and Development, and hosted by the China Urban Rail Transit Association. It is the largest and most influential brand exhibition in the field of urban rail transit in China. The 2024 Beijing-Nanjing International Urban Rail Transit Exhibition and Summit Forum will be held as scheduled in Nanjing on June 13, 2024.

Tianjin Huakai Electric Co., Ltd. is a joint venture between Kaifa Electric and Tsinghua University Huakong Technology Transfer Co., LTD. As the first domestic enterprise specializing in flexible DC traction power supply solutions for rail transit, we were invited to participate in the activities of the "Green Wisdom Integration" exhibition area specially set up by the China Urban Rail Transit Association, showing the company's new flexible DC traction power supply solutions to help achieve the green dual-carbon smart development goal of the rail transit industry. Including bidirectional converters, collaborative control systems and energy management and control systems and other products, these products have attracted the attention of many people inside and outside the industry.

The bidirectional converter can significantly improve power utilization efficiency and reduce operating costs. It is the key equipment of the flexible traction system. It is divided into two equipment specifications, 750V and 1500V, and can be modularly expanded into a multi-port energy router, which is suitable for new energy access. The technology is safe and efficient, and can be applied to a variety of rail transit modes. The cooperative control system is composed of a cooperative controller composed of hierarchical and multilevel wide-area cooperative control technology, including center level, region level and station level coordination, which can achieve self-discipline and interval coordination within the area, real-time regulation of catenary power flow, rapid fault processing, and comprehensive improvement of traction power supply voltage, peak power, renewable energy utilization and other key indicators. To meet the comprehensive needs of traction power supply capacity, locomotive renewable energy utilization, new energy consumption, rail power limitation, etc., so as to achieve safe, stable and low-carbon operation of the system. The energy management and control system realizes the real-time monitoring and management of energy consumption and power quality of the whole network through distributed synchronous measuring devices and real-time high-speed communication. A carbon tube control platform has been established to monitor and manage the dynamic carbon emissions of the whole network. The energy control system based on situation awareness and information synthesis technology has significant advantages in multi-system integration, real-time processing of massive data, and high toughness energy control system.

In an interview with Science and Education Chinese media, Xu Tianjun, general manager of Huakai Electric, introduced the principles and advantages of the product, especially how to optimize the energy efficiency and operational performance of rail transit through two-way convertors and energy management systems, and emphasized the safety of Huakai urban rail flexible DC traction power supply solutions. At the same time, it also shared the application scope and project cases of Huakai flexible DC traction power supply solution, and looked forward to the future development plan of the company, including the development of key regional cities, new energy and new power system exploration.

Looking to the future, Tianjin Huacai Electric Co., Ltd. will develop and promote a new generation of flexible traction power supply system that is safe and reliable, flexible and efficient, green and low-carbon, and economical and energy saving, to help the high-quality development of Beijing-Tianjin-Hebei integration with new quality productivity, and meet the needs of green, double carbon and smart goals of China's urban rail transit in the future. Huakai Electric will adhere to the values of "innovation-driven, wisdom empowered, integrity, and customer achievement", and is committed to becoming a leader in flexible traction power supply technology, shaping the future with wisdom and innovation, and accelerating the transformation of rail transit industry to green and sustainable energy.