《电流差动保护原理及应用》-毕业学术论文（设计）.doc

PAGE 3 l l 毕业设计报告(论文) 电流差动保护原理及应用 所属系 电气工程系 专 业 继电保护 学 号 姓　　名 指导教师 起讫日期 2012.2 2012.5 设计地点 东南大学成贤学院 电流差动保护原理及应用 摘要 电流差动保护是通过比较被保护元件两侧电流量而确定是否动作的保护类型，其原理简单，应用广泛，可作为输电线路、变压器、发电机、母线等设备的主保护。 本设计在分析电流差动保护基本原理基础上，研究了电流差动保护应用于输电线路、变压器、发电机和母线的特殊性，如长距离线路差动保护信息采样的同步问题、变压器励磁涌流引起的差动保护不平衡电流问题，以及母线差动保护中互感器饱和问题等，分析了问题产生的机理，提出了有效的解决办法。最后应用PowerPoint软件制作完成了生动直观的多媒体课件。 关键词：电流差动保护；输电线路；变压器；发电机；母线 Current Differential Protection Principle and Application Abstract The current differential protection is by comparing the protection devices on both sides of the amount of current to determine whether the action type of protection, the principle is simple, widely used, can be used as the primary protection of transmission lines, transformers, generators, bus and other equipment. On the basis of the basic principles of the design in the analysis of current differential protection, current differential protection applied to the special nature of transmission lines, transformers, generators and bus, such as long-distance line differential protection information sampling synchronization problems, transformer inrush current differential protection caused by the imbalance in current issues, as well as bus differential protection, transformer saturation problems, analyze the problem of the mechanism, and propose effective solutions. Finally, the PowerPoint software produced a vivid and intuitive multimedia courseware. Keywords:Current Differential Protection; transmission line; transformer; generator; bus 目 录 TOC \o 1-3 \h \u HYPERLINK \l _Toc32083 摘要 PAGEREF _Toc32083 I HYPERLINK \l _Toc29425 Abstract PAGEREF _Toc29425 II HYPERLINK \l _Toc18231 目 录 PAGEREF _Toc18231 III HYPERLINK \l _Toc3640 第一章 引言 PAGEREF _Toc3640 1 HYPERLINK \l _Toc1067 1.1课题的背景及其意义 PAGEREF _To