1. HVDC transmission engineering technique[M];Zhao,2004
2. High voltage DC transmission technique and its future application[J];Yong;Electr Power Autom Equip,2001
3. Analyse of performance of HVDC line protection[J];Gao;Autom Electr Power Syst,2005
4. Study on traveling wave protection on HVDC transmission line[D];Xin,2008
5. Study on traveling wave protection on HVDC transmission line[D];Ai,2002