1. HVDC transmission;Zhejiang University HVDC Group,1985
2. Study on the application of UHVDC hierarchical connection mode to multi-infeed HVDC system;Zhenya;Proceedings of the CSEE,2013
3. Analysis on absorbing ability of receiving AC system for UHVDC hierarchical connection to AC grid;Yi;Proceedings of the CSEE,2016
4. A method for multi DC terminal location selection based on multi-infeed short circuit ratio;Xiaojiang;Proceedings of the CSEE,2013
5. Definition and application of short circuit ratio for multi-infeed AC/DC power systems;Weifang;Proceedings of the CSEE,2008