Keywords: Beijing Kerui Substation, Power Construction

On June 17, 2024 local time, the SVC device of Sherwood B substation in Zimbabwe's Wangji Phase III project was successfully put into operation with electricity. The Wangji Project in Zimbabwe is the largest infrastructure construction project in Zimbabwe in the past 30 years, which was signed by the leaders of China and Zimbabwe. It is also a key project of China's assistance to Africa in building the "the Belt and Road". SVC is an important equipment in this project, and Beijing Kerui Borun participated in the supply of some core equipment for the SVC device. Its successful operation plays a very important role in supporting the safe operation of the transmission network in Zimbabwe and southern Africa.



Figure 1 Zimbabwe project site

SVC， One of the important equipment in flexible AC transmission systems, it mainly relies on the fast regulation capability of high-power power electronic converter technology to achieve functions such as voltage stability control and power oscillation suppression in the power grid. In the project, the product was successfully connected to the 330kV transmission system in southern Africa, which includes two sets of TCR, two sets of TSC, and FC branches, with a total output capacity of 423Mva. In addition, the company has adopted a new generation control platform based on high-speed digital processing and high-speed communication technology. The control system adopts a dual redundant configuration to ensure high response speed and reliability of the device.



Figure 2: Professional Team Working in Zimbabwe

To ensure the system is put into operation once, the company attaches great importance to it and has specially dispatched a core team to the overseas site. At the same time, there is a professional technical support team in China, and domestic and foreign debugging teams are making every effort to organize and develop a "unified coordination, distributed access, and smooth transition" debugging plan. After several days of intense on-site debugging, the system successfully passed various acceptance tests such as live impact, capacity range, regulation characteristics, auxiliary control functions, and thermal operation, effectively ensuring the smooth operation of the project.



Figure 3: Communication between the project site and the client

The successful operation of the primary electrification of the SVC system of Sherwood B substation of Wangji Project in Zimbabwe is a successful practice of Beijing Keriboron SVC products in the African power grid, and also another important expansion of our company's SVC projects abroad, such as South Korea, Türkiye, Iran, Indonesia, Malaysia, Vietnam, etc. Next, the Beijing Kerui Borun Wangji project team will continue to maintain high combat effectiveness, work closely together, and provide comprehensive and high-quality solutions to African users with professional technology and services.