The semi-physical simulation system scheme of SVG provided by ModelingTech is shown in Figure. The cascade modules in the chain SVG topology are run in the FPGA of the simulator with a simulation step of 1us to accurately simulate the operating characteristics of the chain SVG; the sub-module data and information interactions between the SVG controller, the MT2016 protocol converter and the simulator are carried out through optical fibre, and the grid voltage, current and other network side information are sampled through the physical IO interface, thus realizing the construction of a complete chain SVG semi-physical simulation platform. Physical IO interface sampling, so as to achieve the complete semi-physical simulation platform construction of chain SVG.
MT real-time simulator to SVG controller optical fibre data include power unit capacitance voltage and state data, SVG controller to MT real-time simulator optical fibre data include IGBT control commands and start-stop signals.