摘要电网线损不仅是电力行业的一项综合经济指标,而且也是电网经营管理的一项重要经济指标。降低线损也是电力企业提高经济效益和增强综合竞争力的必要手段之一。高压输电系统结构复杂,各电压等级网络中由大量的电气元件参与工作,这些电气元件在运作时都会有一定的损耗,这些损耗构成了电网的线损。近年来,电网的线损得了到下降,这得益于电网企业在管理和技术层面做好相关工作。本文在分析线损及其影响的基础上,从技术和管理层面介绍降低线损的措施,为研究线损提供参考。77705
该论文有图2幅,表2个,参考文献10篇。
毕业论文关键词: 电网线损 降低线损 降损措施
Research questions In the Line loss For High voltage Transmission lines
Abstract Power line loss is not only a comprehensive economic indicator of the power industry, but also an important economic indicator Power Management。 Reduce line loss is one of the necessary means of power enterprises to improve economic efficiency and enhance overall competitiveness。 Complex structure of high-voltage transmission system, the voltage level of network participation by a large number of electrical components work, these electrical components in operation there will be some losses, these losses constitute a grid line loss。 In recent years, the grid line loss had to fall, thanks to the power grid enterprises do related work in the management and technical levels。 Based on the analysis of line loss and its impact on the technical and management level, introduce measures to reduce line losses for the study provide a reference line loss。
Key Words: Power loss Reduce line losses Reduction Measures
目 录
摘 要 I
Abstract II
图清单 V
表清单 V
1绪论 1
1。1研究背景及意义 1
1。2国内线损研究现状 1
2 线损的理论基础 3
2。1线损的定义 3
2。2线损产生的原因 3
2。3线损的分类 4
3输配电网中的线损计算 6
3。1电力网线损计算和分析的一般方法 6
3。2线损主要参数计算 9
3。3主变压器的电能损耗计算 13
3。4其他电气设备电能损耗计算 16
4降损的措施 18
4。1电网升压改造 18
4。2变更导线的横截面积 18
4。3变压器经济运行 19
4。4增加无功补偿 20
4。5加强电网的维护工作 21
4。6加强用电管理和统计管理 22
5案例分析 23
5。1采取无功功率补偿设备 23
5。2实例计算 25
6总结 28
参考文献 29
致谢