Analysis of main technical problems for XS and JS 800kV UHVDC projects system test
The main technical problems of Xiangjiaba to Shanghai (abbr. XS) and Jinping to Sunan (abbr. JS) 800kV UHVDC transmission projects system test were analyzed in this paper. Based on the system stability calculation results, 46 kinds of main circuit connection modes and referring to 500kV HVDC system commissioning test experiences, the system test program and test plan were prepared, which was divided into four parts that were single converter system test instructions, monopole system test instructions, bipolar system test and de icing mode system test instructions. Duo to rectifier side system was weak in the initial operation stage, AC bus voltage control and reactive power control had been solved. The main technical problems in XS and JS UHVDC project system test were analyzed in detail, which included VBE and control interface function verification, island mode test and de icing connection mode test. These technical problems had been solved during system commissioning test, which guaranteed to complete XS and JS UHVDC project system commissioning test and put into operation in time.
2016 China International Conference on Electricity Distribution (CICED)