Cigre B4 study committee initiated several Working Groups to study the potential future introduction of dc grid. A multi terminal DC grid benchmark system has been developed in order to organize the discussions among the groups. This test system has been shared among all the DC Grids WGs. It will be used to analyze performances of dc grid systems as protections, load flow dispatching, transient stability, reliability, etc. This paper presents the modeling and simulation results of the CIGRE B4 DC Grid test system prepared by WG B4 57, Guide for the development of models for HVDC converters in a HVDC grid, and B4 58, Load flow control and direct voltage control in a meshed HVDC Grid. This test system includes mainly loads, ac and dc cables, ac and dc overhead lines, ac grid, wind farms and 11 VSC stations based on the Modular Multilevel Converter technology. The test system is developed and simulated in the EMTP RV software. Several EMT events, such as outage and dc faults, are simulated to provide validation and dynamic performance of this 11 terminal dc grid.
EMT Modeling and Simulation of the CIGRE B4 DC Grid System Video
Posted: 28 Sep 2016
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