904 enterprises and teams participated in the competition, 12 projects completed on-site signing, 66 projects entered in-depth docking, and 11 rail transit host companies opened lists ......The reporter learned yesterday that after the successful conclusion of the 12th China Innovation and Entrepreneurship Competition Rail Transit Industry Technology Innovation Professional Competition, under the coordination of the Organizing Committee and Zhuzhou Science and Technology Bureau, the docking and transformation work is in full swing.
As the first national innovation and entrepreneurship event with the theme of rail transit in China, its holding will have a positive impact on Zhuzhou and the industry. Recently, the reporter visited some project leaders, and "cooperation and exchange have achieved remarkable results" is their general reply.
Build a new carrier for industrial innovation exchanges
Our mobile hydrogen supply technology achievements have been applied to hydrogen energy shunting locomotives and hydrogen energy light rail vehicles in many places. Since winning the first prize in the team group of the professional competition, in the past few days, Sun Shuangcheng, director of the New Energy System Research Institute of the National Advanced Rail Transit Equipment Innovation Center, has continuously received inquiries from enterprises on the chain, and the mobile hydrogen supply system developed by his team can effectively meet the hydrogen needs of rail transit with large capacity and high safety, which has attracted much attention in the industry.
Sun Shuangcheng said that the event has played a good role in promoting the promotion of the project, not only the initiative of enterprises to contact, but also the teams in the technology chain are interested in coming to cooperate, which is conducive to the extension and development of the project, continuous iteration, and more perfect hydrogen supply capacity.
And this is just a microcosm of the post-competition project docking.
Since 2021, Zhuzhou has successively held municipal and provincial competitions in the field of rail transit, allowing more people to understand the strength and potential of Zhuzhou's rail transit industry. The upgrade of the national competition has become an indispensable part of the China Innovation and Entrepreneurship Competition.
As Liu Youmei, academician of the Chinese Academy of Engineering and director of the CRRC Zhuzhou Electric Locomotive Expert Committee, said, the professional competition is not only a competition and academic discussion, but also an important way to promote the technological progress of the rail transit industry, which has built a new channel and carrier for the demand and communication in the field of rail transit, and has a better role in promoting the combination of achievements and industrial research cooperation.
Help China's "manufacturing" to China's "creation".
At present, accelerating the development of advanced rail transit equipment has become a global consensus. From the perspective of foreign development layout, the European Union has launched a European railway project development plan to build a future railway system. France, Germany, Japan and other countries have made breakthroughs in hydrogen energy locomotive technology. Statistics from the Hunan Provincial Department of Industry and Information Technology show that at present, nearly 270 companies in more than 30 countries around the world are participating in the competition in the rail transit industry.
As the largest R&D, production and export base of rail transit equipment industry in China, Zhuzhou's products are exported to more than 70 countries and regions around the world, with a global market share of 27% for electric locomotives and a local supporting rate of more than 80% for the industry, ranking among the top in the world. Continuing to innovate, it has reached the critical moment of moving from Made in China to Created in China, and this professional competition, a group of young talents and "new star" projects have emerged, which is eye-catching.
Develop a new type of coupling and high torque density permanent magnet direct drive motor, break through the active suspension control technology based on intelligent perception, and apply real-time and virtual test technology to build a semi-physical test platform ......This is the innovative "report card" of the scientific research project of "New Generation Rail Transit Efficient Drive System Technology" led by CRRC Zhuji.
After test calculation, the energy consumption of the traction system can be reduced by 10% compared with the asynchronous traction system, the noise of the drive system can be reduced by 15 decibels, and the weight of the walking drive system can be reduced by 10%. It can save about 2 electricity for the subway in a first-tier city in a year400 million kWh. Shen Longjiang, director of the basic research and test center of CRRC Zhuji Company, said that intelligent technology has made rail transit with low energy consumption and high safety a reality.
Another example is noise reduction, which is a world-class problem in the development of rail transit. In view of the noise problem in the process of high-speed operation of locomotives, the "Rail Transit Vehicle Noise Active and Passive Fusion Control System" developed by the technical team of CRRC Zhuji has attracted much attention.
The test proves that with the support of our technology, the noise reduction device can be effectively reduced by nearly 30% through the deployment of noise reduction devices for the locomotive fuselage, key systems, air duct systems, etc. Li Dengke, the project leader and a member of the CRRC Vibration and Noise Control Professional Technical Committee, said that the relevant achievements of the project have been applied to more than 40 engineering projects such as EMUs, subways, and locomotives.
Wang Zhonggang, a professor at the High-Speed Train Research Center of Central South University, who served as a judge of the competition, said that a number of core technologies, products and systematic solutions have emerged in this professional competition, reflecting the new vitality of the integrated development of the new rail transit system, and will better help China "create" to the world.