XIE Yeyuan,YAO Hongyang,OUYANG Youpeng,et al.Low-voltage Energizing Circuit and Batch Test Technology for Modular Converter Valve[J].Automation of Electric Power Systems,2022,46(20):174-180.
XIE Yeyuan,YAO Hongyang,OUYANG Youpeng,et al.Low-voltage Energizing Circuit and Batch Test Technology for Modular Converter Valve[J].Automation of Electric Power Systems,2022,46(20):174-180. DOI: 10.7500/AEPS20211215005.
Low-voltage Energizing Circuit and Batch Test Technology for Modular Converter Valve
To solve the problems of low field test efficiency and insufficient test coverage of modular converter valves in flexible DC transmission projects
a low-voltage energizing circuit and module batch test technology for modular converter valves are proposed. Using low-voltage DC source and low-voltage energizing circuit combined with valve-controlled batch test strategy
the batch controlled charging
automatic batch test
and rapid controllable discharge of DC capacitor of sub-modules on valve tower are realized. It solves the problem that the traditional test scheme cannot consider both the test efficiency and the test items. The low-voltage energizing equipment is developed
and the EMTDC system simulation model and the test system including the actual project converter valve tower are built to verify the correctness and feasibility of the proposed scheme. This work is supported by National Key R&D Program of China (No. 2018YFB0904700).
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