Journal of Electrical Engineering and Automation

Objective To ensure the safe and stable operation of the valve cooling system in the converter station, so as to maintain the overall operating condition of the DC system. The purpose of this study is to find out the cause of the frequent failure of the fan in the external cooling system of the valve of the converter station and to provide solutions. Methods Through data testing and disassembly analysis of the faulty fan, the failure mode and cause data testing of the fan were systematically studied in this study. Including operating parameter monitoring, vibration analysis, etc. Disassembly analysis focuses on the internal structure of the fan, material aging and other aspects. Object: Converter station valve external cold. As a key component of the valve cooling system, the performance of these fans directly affects the operating efficiency and safety of the entire converter station. Results The solution measures including regular maintenance, optimization of fan design and replacement of durable materials were strengthened. It is expected to significantly reduce the fan failure rate and improve the operating efficiency and safety of the valve cooling system in the converter station. Conclusion This study successfully identified the main fault causes of the faulty fan, and put forward effective solutions accordingly. These measures have positive reference significance for the fan maintenance and management of other converter stations, and help to improve the operation stability and reliability of the whole power system.

Converter station; Valve external cooling system; Fan fault