Performance Verification of the Three-Gorges - Shanghai HVDC Thyristor Modules

摘要

The design of Three-Gorges -Shanghai (3GS) HVDC thyristor valves is identical to those used in previous two HVDC transmission projects from Three-Gorges hydroelectric power plant. Operational type tests and sample tests of 3GS thyristor valves / modules were re-performed in the synthetic test circuit. The same test parameters are used in test of thyristor modules in all (Three-Gorges) 3G HVDC projects. These parameters stress the test object equal to or greater than those that are foreseen to appear in service. Fifteen and seven 3GS thyristor modules successfully passed the operational type test and sample test respectively.