变电站高压开关监测系统设计

发布时间：2018-08-12 13:21

【摘要】：高压开关柜设备在电力设备的系统中,占有很重要的地位,对设备的安全运行起到保护作用。变电站的设备处于一个高电压和具有十分强大磁场的环境,况且我国的变电站建设中的高压开关柜大多数采用的是封闭式的结构,其散热性能差,导致设备内部的温度升高,对设备造成损坏,容易引起火灾等重大事故。且随着科技的进步,现在的高压开关设备内部的线路结构,也随之越来越复杂,对工作人员来说,设备的维修工作也越来越困难,如果不能及时的发现设备,会造成巨大的损失。如何确保变电电力设备的安全运行,提高可靠性,减少事故率是一个很重要的问题,因此我们国家提出了高压开关设备的实时在线检测系统研究的课题,实现对高压开关柜重要运行参数的在线监测。通过阅读国内外大量的关于高压开关柜方面的文献和研究成果,结合传统的高压开关柜的温度检测技术,比较发现：传统测量温读的技术功能比较简单,不能实现对高压开关设备的温度的实时在线检测,而且为了确保高压开关设备的安全工作,极大地浪费大量的人力,物力和财力。由于现在电子技术,计算机技术以及无线通信技术等科技的发展,并结合高压开关柜的事故特点,本课题提出了一种实时的在线监测温度的系统方案,有效的提高了高压开关设备的可靠性,确保了设备可以安全运行,降低了变电站事故发生概率,具有很好的社会意义和现实意义。本论文首先对温度采集进行了硬件设计：主要介绍了数字温度传感器DS18B20以及高压电源等内容；然后对现有的无线通信技术进行了比较,确定了本论文采用的无线技术是ZigBee无线通信技术。最后本文重点设计了站内后台监控软件,通过VC++,完成了对实时数据库,历史数据库,报警模块,数据上传模块,系统管理模块等主要模块的开发和设计。并对该技术进行了总结和展望。
[Abstract]:High-voltage switchgear plays an important role in the system of power equipment and plays a protective role in the safe operation of the equipment. Substation equipment is in an environment of high voltage and very strong magnetic field. Moreover, most of the high voltage switchgear cabinets in the construction of substations in our country adopt a closed structure, and their heat dissipation performance is poor, resulting in a rise in the temperature inside the equipment. Damage to equipment, easy to cause major accidents such as fire. With the development of science and technology, the internal circuit structure of the HV switchgear is becoming more and more complicated. For the staff, the maintenance of the equipment is becoming more and more difficult. If the equipment is not found in time, It will cause great losses. How to ensure the safe operation of substation power equipment, improve the reliability and reduce the accident rate is a very important problem. Therefore, our country has put forward the research topic of real-time on-line detection system of high-voltage switchgear. Realize the on-line monitoring of the important operation parameters of the high voltage switchgear. By reading a large number of literatures and research results on high voltage switchgear at home and abroad, and combining with the traditional temperature detection technology of high voltage switchgear, it is found that the technical function of traditional temperature reading measurement is relatively simple. In order to ensure the safety of high voltage switchgear, a great deal of manpower, material and financial resources are wasted in order to ensure the safety of high voltage switchgear. Due to the development of electronic technology, computer technology and wireless communication technology, and combined with the accident characteristics of high voltage switchgear, this paper puts forward a real-time on-line temperature monitoring system. It can effectively improve the reliability of high-voltage switchgear, ensure the safe operation of the equipment, reduce the probability of substation accidents, and have good social and practical significance. This paper firstly designs the hardware of temperature acquisition: mainly introduces the digital temperature sensor DS18B20 and high voltage power supply, and then compares the existing wireless communication technology. The wireless technology used in this paper is ZigBee wireless communication technology. Finally, this paper focuses on the design of background monitoring software, through VC, completed the development and design of real-time database, history database, alarm module, data upload module, system management module and other main modules. The technology is summarized and prospected.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM63;TM76

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