5MW大型并网光伏电站技术方案(2)

太阳能光伏并网电站技术方案

目 录

一、项目概况...................................................................................................................................1

二、方案设计...................................................................................................................................1

2.1 方案总体思路...................................................................................................................1

2.1.1 设计依据...............................................................................................................1

2.1.2 设计说明...............................................................................................................2

2.1.3 设计原则...............................................................................................................2

2.1.4 进度安排...............................................................................................................3

2.2 具体方案...........................................................................................................................3

2.2.1 系统构成...............................................................................................................3

2.2.2 太阳电池阵列设计...............................................................................................4

2.2.3 智能汇流箱设计...................................................................................................7

2.2.4直流配电柜设计....................................................................................................8

2.2.5 光伏并网逆变器...................................................................................................8

2.2.6 配电保护装置.....................................................................................................10

2.2.7 升压变压器.........................................................................................................11

2.2.8 发电计量系统配置方案.....................................................................................11

2.2.9 环境监测装置.....................................................................................................17

三、初步工程设计.........................................................................................................................18

3.1 土建设计.........................................................................................................................18

3.2 电站防雷和接地设计.....................................................................................................19

3.3 电网接入系统和输变电.................................................................................................19

四、年发电量计算.........................................................................................................................22

4.1 光伏发电系统效率.........................................................................................................22

4.2 衰减率预测.....................................................................................................................22

4.3 发电量估算.....................................................................................................................22

五、环境影响评价.........................................................................................................................23

六、投资经济概算.........................................................................................................................23

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