降低线路损耗的方法和措施概要.docx

本科毕业设计（论文）说明书 降低线路损耗的方法和措施 学 院 专业班级 学生姓名 学生学号 指导教师 提交日期 摘 要 线损是电力网电能损耗的简称，是供电企业一项重要的技术经济指标。随着我国电力体制改革的进一步深化，如何在新的市场体系和电价机制之下，有效降低电网电能损耗、提高企业经济效益，是各级电力企业迫切需要解决的共同问题。 本文详细介绍了线损和线损率的基本概念。在输配电过程中，电能传送和电磁能量转换都是通过电流实现的，电流通过导线或电气设备时会产生损耗。线损是电网线路及设备对电力的消耗，线损率是电力系统规划设计、生产运行、经营管理和企业经济效益水平的综合体现。 本文讨论了电力系统线损的产生原因和分析方法，并研究了线损分析计算的相关理论。配电网线损的算法主要有：均方根电流法、最大电流法、平均电流法、等值电阻法等。 线路损耗电量可按其损耗的特点、性质和变化规律进行分类。降低线损的工作主要通过对这些特点、性质及其变化规律来研究分析，然后采取积极有效的技术和管理措施，来降低线路损耗。 最后，本文从管理和技术两个层面详细地提出了一些降损措施，包括完善线损管理的激励机制，加强营销稽查、普查工作, 加强电能计量管理，网络结构改造，应用无功补偿技术等。 关键词：电力系统，线损分析，降损措施 Abstract Line loss is a short of electric power losses, it is an important technical and economic indicators of power supply enterprise. With the further deepening of China’s electric power system and the new market system and the price mechanism, how to effectively reduce line loss and improve economic efficiency of enterprises is an urgent need to address common problems for the companies of electric power at all levels. In this paper, the basic concepts of line loss and the line loss rate are introduced particularly. In the course of transmission and distribution, power transmission and electromagnetic energy conversion is achieved through the current, the current through the wires will have a loss. Line loss is the power grid lines and equipment for electricity consumption, the line loss rate is the power system planning and design, production and operation, management and economic efficiency of enterprises of the comprehensive level. This paper discusses the origin of line loss and its analyzing method, and investigates the computational theory using of analyzing line loss. The main algorithm methods of the line loss of distribution network are the root-mean-square electric current law, the maximum current law, the mean current law, the equivalent resistance law and so on