1. HVDC systems in smart grids;Barnes;Proceedings of the IEEE,2017
2. Ultra-High voltage transmission in China: developments, current status and future prospects;Huang;Proceedings of the IEEE,2009
3. Economical comparison of AC and DC trans-mission lines;Alexandrov;High Voltage Engineering,2008
4. A Control and Protection Scheme for VSC-HVDC System;Liang;Automation of Electric Power Systems,2013
5. VSC-HVDC transmission technology: application, advancement and expectation;Li;Southern Power System Technology,2015