配电变压器在线监测系统设计

发布时间：2018-05-07 12:54

本文选题：配电变压器 + GPRS　；参考：《华北电力大学》2017年硕士论文

【摘要】：配电变压器将高电压降低为用户可直接使用的电压等级,是电力用户最直接的上级变压器,由于其具有分布范围广、地理位置分散、数量众多的特点,导致了运行人员无法便捷地对辖区内大量配电变压器的实时运行状态进行了解,主要依靠运维人员对变压器运行数据的人工记录。配电变压器的检修方式以人工巡检为主,由于无法对设备的运行工况充分掌握,存在信息获取落后的缺点,无法适应现代智能电网的要求。因此,迫切需要建立一套既可以精确采集运行状况又具备较高智能化程度的配电变压器在线监测系统以保障配电网络的安全稳定运行,提高电力用户的用电满意度。配电变压器在线监测系统主要通过实时采集配电变压器的运行参数不仅满足了运行人员对配电变压器状态的了解需求,有效解决了配电变压器故障发现不及时的不足,还可以通过更为科学合理的运行参数统计分析更有效合理地使用采集到的数据,将其应用于指导检修操作,有效降低运行维护人员的工作量提高了人员的工作效率,并提高了配电网络的运行可靠性。本文主要包括以下4个部分内容:(1)结合农网配电变压器的工作原理及特点,提出一套低功耗且支持多种扩展功能的配电网络在线监测系统,主要包括监测终端,传输通道以及人机交互界面。(2)市场上大部分的监测终端采用单片机作为处理器,近年来,随着DSP性能大幅度的提高而其价格却明显下降,在电力系统上得到了广泛的应用。本文采用DSP作为监测终端的处理器,提高了运算能力和控制能力。(3)鉴于配电变压器分布广且数量多,不适合采用有线通讯的手段,因此本系统通过无线GPRS将采集装置的实时运行数据上传至在线监测系统。(4)通过测试系统的数据实时采集、数据统计、数据存储等功能证明本系统具有较高的数据采集传输准确性与人机交互能力。
[Abstract]:The distribution transformer reduces the high voltage to the voltage grade which can be used directly by the user. It is the most direct superior transformer for the power users. Because of its wide distribution range, scattered geographical location and numerous quantity, the distribution transformer has the following advantages: 1. As a result, the operators can not easily understand the real-time operation status of a large number of distribution transformers in the area, and mainly rely on manual records of transformer operation data by operation and maintenance personnel. The maintenance mode of distribution transformer is mainly manual inspection. Because it can not fully grasp the operating conditions of the equipment and has the shortcoming of backward information acquisition, it can not adapt to the requirements of modern smart grid. Therefore, it is urgent to set up an on-line monitoring system for distribution transformers, which can accurately collect the operation status and has a higher degree of intelligence, in order to ensure the safe and stable operation of the distribution network, and to improve the power users' satisfaction with the use of electricity. The on-line monitoring system of distribution transformer mainly collects the operation parameters of distribution transformer in real time. It not only meets the needs of the operators to understand the status of distribution transformer, but also effectively solves the shortage of fault finding of distribution transformer. We can also use the collected data more effectively and reasonably through more scientific and reasonable statistical analysis of operation parameters, and apply it to guide maintenance operation, and effectively reduce the workload of operation and maintenance personnel and improve their working efficiency. The reliability of distribution network is improved. This paper mainly includes the following four parts: 1) combining with the working principle and characteristics of distribution transformer in rural power network, a low power consumption and multi-function on-line monitoring system for distribution network is proposed, which mainly includes monitoring terminal. In recent years, the performance of DSP has been greatly improved but its price has declined obviously, so it has been widely used in power system. In this paper, DSP is used as the processor of the monitoring terminal, which improves the operation ability and control ability. (3) in view of the wide distribution and large quantity of distribution transformers, it is not suitable to adopt the means of wired communication. Therefore, this system uploads the real-time running data of the acquisition device to the on-line monitoring system. 4. Through the wireless GPRS, the system collects the data in real time through the test system, and statistics the data. Data storage and other functions prove that the system has high accuracy of data acquisition and transmission and human-computer interaction.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM421

【参考文献】