共 8 条
[1]
AINSWORTH JD, 1980, CIGRE C PARIS
[3]
HAMMAD A, 1984, JUN INT C DC POW TRA, P164
[5]
KIMBARK EW, 1971, DIRECT CURRENT TRANS, V1, pCH3
[7]
Szechtman M, 1991, ELECTRA, V135, P55
[8]
1993, IEEE CIGRE GUIDE P 1