地铁供电系统设计Word文档下载推荐.docx
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章绪论..........................................................................................................................1
1.1地铁供电系统设计的背景与意义............................................................................1
1.2地铁供电系统国内外现状........................................................................................1
1.3供电系统的功能........................................................................................................1
1.4供电系统的基本要求................................................................................................1
1.5供电系统的构成........................................................................................................2
2
章外部电源....................................................................................................................4
2.1概述............................................................................................................................4
2.2外部电源方案的形式................................................................................................4
2.2.1集中式供电......................................................................................................4
2.2.2分散式供电......................................................................................................5
2.2.3混合式供电......................................................................................................6
2.3地铁
3
号线供电方式选择与分析............................................................................6
章主变电所....................................................................................................................8
3.1概述............................................................................................................................8
3.2主变电所选址............................................................................................................8
3.3电气主接线................................................................................................................9
3.3.1线路-变压器组接线
........................................................................................9
3.3.2中压侧主接线形式..........................................................................................9
3.4主变压器选择..........................................................................................................10
3.4.1主变压器台数的确定原则............................................................................10
3.4.2主变压器容量的确定原则............................................................................10
3.4.3主变压器形式的选择....................................................................................11
3.5主变压器中性点接地方式......................................................................................11
3.5.1中性点接地方式的原则................................................................................11
3.5.2主变压器中性点接地方式............................................................................11
4
章中压网络..................................................................................................................12
4.1概述..........................................................................................................................12
4.2中压网络电压等级..................................................................................................12
4.2.1电源等级的概念............................................................................................12
4.2.2不同电压等级的中压网络特点....................................................................12
4.2.3地铁
号线中压供电网络电压等级选择....................................................13
4.3中压网络的构成......................................................................................................13
4.3.1概述................................................................................................................13
4.3.2中压网络的构成原则....................................................................................13
4.3.3地铁
号线中压网络构成形式....................................................................14
4.4主变电所的运行方式..............................................................................................14
4.4.1正常运行方式................................................................................................15
4.4.2单故障运行方式............................................................................................15
4.4.3主变电所退出时运行方式............................................................................15
5
章牵引供电系统..........................................................................................................17
5.1概述..........................................................................................................................17
5.2牵引变电所选址原则..............................................................................................17
5.3牵引变电所主接线..................................................................................................18
5.3.1中压主接线....................................................................................................18
5.3.2直流侧主接线................................................................................................19
5.4牵引供电系统保护..................................................................................................20
5.4.1概述................................................................................................................20
5.4.2交流中压系统保护........................................................................................21
5.4.3直流牵引系统保护........................................................................................22
6
章供配电系统..............................................................................................................25
6.1概述..........................................................................................................................25
6.2降压变电所选址原则..............................................................................................25
6.3降压变电所主接线..................................................................................................25
6.3.1中压主接线....................................................................................................26
6.3.2低压主接线....................................................................................................27
7
章地铁供电系统容量计算..........................................................................................29
7.1概述..........................................................................................................................29
7.2地铁供电容量计算的前提......................................................................................29
7.3牵引变电所容量计算..............................................................................................29
7.3.1牵引负荷特点................................................................................................29
7.3.2评估牵引供电系统的指标............................................................................30
7.3.3地铁
号线牵引变电所供电计算................................................................31
7.4降压变电所用电计算..............................................................................................31
7.4.1概述................................................................................................................31
7.4.2地铁变配电设计负荷计算............................................................................32
7.4.4无功功率补偿................................................................................................36
7.4.5配电变压器选择............................................................................................36
7.4.6地铁
号线降压变电所用电计算................................................................37
7.5主变压器用电计算..................................................................................................38
7.5.1概述................................................................................................................38
7.5.2地铁
号线柏林庄站主变电所用电计算....................................................38
7.6结论..........................................................................................................................38
8
章杂散电流与接地......................................................................................................39
8.1概述..........................................................................................................................39
8.2杂散电流..................................................................................................................39
8.2.1杂散电流的产生............................................................................................39
8.2.2杂散电流的危害............................................................................................39
8.2.3杂散电流的保护............................................................................................40
8.3地铁接地系统..........................................................................................................40
9
章短路计算..................................................................................................................41
9.1概述..........................................................................................................................41
9.2交流系统短路计算..................................................................................................41
9.2.1计算意义........................................................................................................41
9.2.2交流短路计算的内容....................................................................................41
9.2.3中压交流系统................................................................................................42
9.2.4低压交流系统................................................................................................43
9.2.5中山广场牵引降压混合所交流短路计算示例............................................44
9.3直流系统短路计算.............