Recently, the world's first 35 kV air-water cooled high-voltage direct-connected condenser, developed by Harbin Electric Group, was successfully commissioned at the booster station of CGN New Energy Sunwu Wind Power Project. The equipment possesses dual capabilities of steady-state regulation and dynamic support, marking a major original achievement by China in the field of core equipment for power grid stability support.
On August 28, the engineering application launch conference for the world's first 35 kV high-voltage direct-connected condenser and the new distributed condenser technology exchange conference were successfully held in Heihe City, Heilongjiang Province. Representatives from government functional departments, industry experts, research institutes, and user representatives gathered together to witness the release of this original achievement and conducted discussions on the technical and engineering value of the product in improving the efficiency and stability of new energy grid integration, jointly exploring pathways for green energy development.
Zhang Lianbin, Member of the Standing Committee of the Party Committee and Deputy General Manager of Harbin Electric Group, attended the meeting and delivered a speech. Hu Rui, Secretary-General of the Chinese Society for Electrical Engineering; Guo Jinzhi, Member of the Party Committee and Deputy General Manager of State Grid Heilongjiang Electric Power Co., Ltd.; Liu Yang, Secretary of the Party Committee, Chairman, and General Manager of CGN Heilongjiang New Energy Investment Co., Ltd.; Li Zhiqiang, Senior Expert of China Electric Power Research Institute Co., Ltd.; and Han Jinhua, First-Level Inspector of the Science and Technology Department of Heilongjiang Province, attended the meeting.
In his speech, Zhang Lianbin extended a warm welcome and heartfelt gratitude to the attending guests on behalf of Harbin Electric Group. He stated that the current profound transformation of the energy structure, coupled with the large-scale integration of new energy into the grid, poses severe challenges to grid stability. Harbin Electric Group, focusing on what the nation needs and what the enterprise can deliver, has successfully achieved the engineering application of the world's first 35 kV high-voltage direct-connected condenser. This serves as a "key cornerstone" supporting the construction of the new power system, a "vital tool" serving the national energy security strategy, and a "vivid practice" demonstrating China's transition from "Made in China" to "Created in China." Harbin Electric Group will take this breakthrough as a new starting point, continue to deepen its efforts in core equipment, and contribute Harbin Electric's strength to safeguarding national energy security.
At the meeting, the Electric Machinery Company presented the product technology release of the 35 kV high-voltage direct-connected condenser and introductions of other new condenser products. Industry experts evaluated that this achievement represents an efficient domestically produced solution to the challenge of stability control in high-proportion new energy power grids, and is an indispensable "key cornerstone" for the construction of the new power system. By enhancing the grid's inherent anti-disturbance capability, this equipment can effectively prevent the risk of large-scale blackouts, directly serving the national energy security strategy, and demonstrating China's independent innovation strength in the field of high-end power equipment.
Experts including Cai Wei, National Outstanding Engineer and Lifetime Honorary Professor of Harbin University of Science and Technology; Wang Zhiqiang, Professor of Huazhong University of Science and Technology; Li Weili, Professor of Beijing Jiaotong University; Li Zhiqiang, Senior Expert of China Electric Power Research Institute Co., Ltd.; Xie Huan, Director of the New Energy and Energy Storage Research Institute of State Grid Jibei Electric Power Co., Ltd. Research Institute; Cao Zhiwei, Director of State Grid Shandong Electric Power Company Electric Power Research Institute; and Sun Yutian, Secretary-General of the Electric Machinery Committee of the Chinese Society for Electrical Engineering, conducted technical exchanges.
Further Reading
With the in-depth advancement of the national "dual carbon" strategy, the large-scale integration of new energy sources such as wind and solar power, with their generation volatility, poses severe challenges to grid voltage stability, frequency regulation, and reactive power balance. Distributed condensers, with their flexible deployment, can be installed in close proximity at new energy collection stations, load centers, or weak points in the power grid, achieving precise support for local grids. As the "national team" in power equipment manufacturing, the Electric Machinery Company has addressed the industry challenge of improving the reliability of "green power" grid integration through full-chain independent research and original innovative equipment.
The 35 kV high-voltage direct-connected condenser for the CGN New Energy Sunwu Wind Power Project, a key R&D project of Heilongjiang Province developed by the Electric Machinery Company, adopts aworld-firsthigh-voltage direct-connected topology, eliminating the traditional step-up transformer stage, effectively reducing system losses, achieving millisecond-level dynamic reactive power response, and providing more reliable "flexible" and "resilient" support to the power grid. Since its commissioning, the condenser has operated continuously and stably, with all indicators meeting design expectations, and reactive power regulation being precise and rapid, once again confirming the Electric Machinery Company's full-chain delivery capability from R&D and manufacturing to engineering general contracting.This breakthrough is attributed to the Electric Machinery Company's sustained efforts in core technologies such as high-voltage insulation, composite high-efficiency cooling, and large-inertia electromagnetic design, and is also the result of collaborative innovation among industry, academia, research, and application, as well as joint innovation across the upstream and downstream of the industrial chain.