Experts Say: Localization of Converter Valves Takes Another Step

Recently, entrusted by the National Energy Administration, China Machinery Industry Federation organized experts in Shanghai to carry out product appraisal on the "VBE200 HVDC converter valve control equipment" developed by XJ Group. The appraisal committee believed that: XJ Group independently developed VBE200. HVDC converter valve control equipment has filled the domestic gap, the overall level has reached the international advanced, and some of the indicators have reached the international advanced level, and they all agreed to pass the identification.

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The VBE control system is the core of the converter valve. Although the VBE of valve-based electronic equipment has a low proportion of the total cost of the thyristor (about 1-2%), it is the core component of the thyristor. The main function is to realize the thyristor. Valve and valve group control and monitoring of each thyristor state.

Due to high technical barriers, VBE is one of the components of the thyristor system that has finally been domesticated. It has long been monopolized by foreign companies such as ABB and Siemens.

XJ Group took the lead in researching valve-based electronic equipment VBE by virtue of its technological superiority in power secondary systems, ending the monopoly of foreign capital as a leading company in the field of power control protection and automation. XJ Group is learning and digesting foreign advanced control theories. Based on the self-developed valve-based electronic equipment VBE.

The successful development of XJ Group's valve-based electronic equipment VBE has made important contributions to the domestic production of HVDC transmission technology in China, and has also reduced the dependence of domestic HVDC transmission technology on foreign investment.

Xu Ji's leading position in DC transmission valve technology is further established. According to the appraisal committee's opinion, XJ Group's VBE200 HVDC converter valve control equipment "fills the domestic gap, the overall level has reached the international advanced, and some indicators have reached the international level. Level".

Although the XBE Group's VBE equipment has been well applied in a number of HVDC transmission projects, it has not yet been recognized and approved by an authoritative organization. The appraisal successfully demonstrated that the Xuji Group's converter valve technology has been further established in China's leading position, and the company will have more confidence in competing with competitors and even foreign-funded enterprises in the future.