Modeling and Simulation of Tianshengqiao—Guangdong ±500 kV HVDC Transmission System

Based on the parameters of Tianshengqiao—Guangdong HVDC transmission system,the model of AC system,converter transformer,rectifier,inverter,AC/DC filter,smoothing reactor and DC transmission line are built up by PSCAD/EMTDC electromagnetic transient simulation software.After modifying the control system of HVDC transmission line model on CIGRE HVDC of PSCAD,the bipolar and double 12-pulse HVDC transmission system of Tian—Guang model is built up.The simulation result shows that the model can simulate the Tian—Guang HVDC transmission system accurately and provide an effective tool for fault researches of bipolar HVDC transmission line.