摘 要

本文借助全寿命周期成本的方法首先介绍了雷电放电原理以及雷电放电的危害，并介绍现代配网防雷的一些措施和设备。然后对配网经济性评价的方法进行归纳。随后在的基础上计算停电损失。据此，在雷击跳闸率的基础上计算用户的停电损失，并与架设避雷线的投资作比较，得出10kv配网架设避雷线的经济性。最后，对10kv配电线路雷害事故原因进行总结并提出改进措施。所得结果对10kv配网防雷经济性的研究具有重要指导意义。

论文主要研究了10kv架空配电线路架设避雷线经济性的问题，将10kv配网线路架设避雷线投资与停电损失作比较，从而得出10kv配电线路架设避雷线的经济性。

研究结果表明：10kv配电线路架设避雷线经济性较低，成本较高。

关键词：配电网;经济性;全寿命周期管理

Abstract

This article first introduced the principle of lightning discharge and the harm of lightning discharge by means of the method of full life cycle cost, and introduced some measures and equipment for lightning protection of modern distribution network. Then summarize the methods of economic evaluation of distribution network. Then based on the calculation of power outage losses. Based on this, the user's power outage loss is calculated based on the lightning strike tripping rate, and compared with the investment of erecting the lightning conductor, and the economy of the 10 kv distribution grid erecting the lightning conductor is obtained. Finally, summarize the causes of lightning accidents in 10kv distribution lines and put forward improvement measures. The obtained results have important guiding significance for the research of lightning protection economy of 10kv distribution network.

The dissertation mainly studies the economical problem of erecting the lightning protection line on the 10kv overhead distribution line, compares the investment of the 10kv distribution line erecting the lightning protection line with the loss of power outage, and obtains the economy of installing the lightning protection line on the 10kv distribution line.

The result of the research shows that the lightning protection line with 10kv distribution line is of low economical and has high cost.

Key Words: distribution network; economy;life cycle management

目 录

第1章 绪论...................................................................................................................................1

1.1 研究背景与意义……..........................................................................................................1

1.2 国内外研究现状及发展趋势...........................................................................................................2

1.3 雷电放电原理及过程..........................................................................................................4

1.4 雷电放电危害......................................................................................................................5

1.5 10kv配网雷害事故原因......................................................................................................5

1.6 本文主要写作内容..............................................................................................................................6

第2章 配网防雷经济性评价方法.............................................................................................................7

2.1 配网可靠性经济评价方法................................................................................................................7

2.1.1 可靠性排列法...............................................................................................................................7

2.1.2 可靠性比较分析法......................................................................................................................7

2.1.3 可靠性优化法...............................................................................................................................7

2.1.4 绝对可靠性评价法......................................................................................................................7

2.1.5 成本效益分析法...........................................................................................................................7

2.2 停电影响..............................................................................................................................8

2.2.1 直接影响........................................................................................................................................8

2.2.1 间接影响........................................................................................................................................8

2.3 停电损失类型......................................................................................................................8

2.4 停电损失估算方法..............................................................................................................9

2.4.1 国外采用的停电损失评估方法...................................................................................9

2.4.2 我国采用的停电损失评估方法...................................................................................9

2.5 全寿命周期成本................................................................................................................10

2.5.1 全寿命周期成本介绍.................................................................................................10

2.5.2 全寿命周期成本评估流程......................................................................................................11

2.6 本章小结............................................................................................................................11

第3章 基于全寿命周期成本的经济性分析........................................................................................12

3.1 初始投入成本....................................................................................................................12

3.2 运行成本............................................................................................................................12

3.3 故障损失成本....................................................................................................................12

3.3.1 不同用户停电损失模型...........................................................................................................13

3.3.2 用户停电损失调查....................................................................................................................14

3.3.3 不同用户停电损失函数...........................................................................................................14

3.3.4 用户停电损失.............................................................................................................................15

3.4 本章小结............................................................................................................................16

第4章 对雷击跳闸停电损失的评估与避雷线投资的比较.....................................................17

4.1 停电损失评估....................................................................................................................17

4.2 避雷线费用........................................................................................................................17

4.3 成本比较与评价................................................................................................................17

4.4 本章小结............................................................................................................................18

第5章 10kv配网优化方向........................................................................................................19

5.1 提高供电可靠性................................................................................................................19

5.2 降低线损............................................................................................................................19

5.3 改善电能质量....................................................................................................................20

5.4 本章小结............................................................................................................................20

第6章 总结与展望.....................................................................................................................21

参考文献.......................................................................................................................................22

致谢...............................................................................................................................................23

第1章 绪论