differential protection短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 差动保护装置 Through the analysis of the sensitive and security of different current differential criterions one new differential protection algorithm is proposed in this thesis. 首先通过对传统全电流差动算法和突变量差动的安全性及灵敏性数值与图表分析，提出了新的差动算法。 cnki