变压器套管介质损耗在线监测系统设计与开发
发布时间：2018-08-25 09:50
【摘要】：电力系统由发电、输电、变电、配电和用电五个环节构成,变压器是变电站中的重要核心设备,运行状态的好坏直接影响到电力安全生产与安全稳定运行。而变压器的可靠性的衡量的一个重要指标就是介质损耗。为保证电力系统的安全运行,必须加强对变电站主变压器绝缘的监测,介质损耗测量是绝缘预防性实验中必不可少的测试项目。通过对介质损耗测量可以反映电气设备绝缘一系列缺陷,如绝缘受潮,油或浸渍物脏污或劣化变质,绝缘中有气隙发生放电等。因此介质损耗测量是绝缘预防性实验中必不可少的测试项目。在一个变电站,容性设备占到了变电站总设备数量的百分之四十到百分之五十。这些设备中最重要的是主变套管,套管所有设备中最容易发生事故的设备,因而在在预防性试验中需要投入大量的工作,它的状态的关系到电网运行的状况,如果设备出现故障,会给电力不能带来经济效益损失,严重的可能发生灾难事故,故障要电力部门付出巨大的代价。要保证系统的可靠性,需要投入大量的人力和物力,且工作量大。因而通过对变压器套管进行监测,不但能保证电网设备的安全还能取得经济效益。通过本系统的建设,可以实时监测变电站主变套管设备的工作状态,减少不必要的停电检修时间,节约人力和维修支出,降低成本,为电力运营赢得更多宝贵的时间,获得更大的经济效益。通过在线监测技术,根据数据的采集周期实现连续采集设备状态,并根据介质损耗的数据分析方法对数据进行科学的分析,及时诊断,根据参数对系统的进行预测分析,达到对问题提早发现、提早预警,从而提高设备可靠性。同时系统可以实现与调度系统接口,可以远程对设备状态进行监测,实现对有缺陷的设备或则可能有缺陷的设备有选择的提早检修,减少多次停电带来的损失。通过远程监测为变电站无人值守提供技术支持。本系统采用以C语言为开发基础,融合了C#、数据、电子技术设计多项技术,实现变压器套管介质损耗在线监测,通过本系统提高了介质损耗监测的自动化、降低了工作复杂度。
[Abstract]:Power system is composed of five links: generation, transmission, substation, distribution and power consumption. Transformer is an important core equipment in substation, and the operation state directly affects the safe and stable operation of electric power. The dielectric loss is an important index to measure the reliability of transformer. In order to ensure the safe operation of the power system, it is necessary to strengthen the monitoring of the insulation of the main transformer in the substation. The measurement of dielectric loss is an essential test item in the preventive experiment of insulation. The measurement of dielectric loss can reflect a series of defects in the insulation of electrical equipment, such as dampness of insulation, dirt or deterioration of oil or maceration, discharge of air gap in insulation and so on. Therefore, dielectric loss measurement is an essential test item in insulation preventive experiment. In a substation, capacitive equipment accounts for 40% to 50% of the total number of substation equipment. The most important of these equipments is the main transformer casing, the equipment that is most prone to accidents in all the casing equipments, so a lot of work is required in the preventive test, and its state is related to the operation of the power grid. If the equipment fails, it will not bring economic benefits to the power loss, serious possible disaster, the failure of the power sector to pay a huge price. To ensure the reliability of the system, a lot of manpower and material resources are needed. Therefore, the monitoring of transformer bushing can not only ensure the safety of power network equipment, but also obtain economic benefits. Through the construction of this system, it can monitor the working condition of substation main transformer casing equipment in real time, reduce unnecessary outage and overhaul time, save manpower and maintenance expenses, reduce cost, and win more precious time for electric power operation. Achieve greater economic benefits. Through on-line monitoring technology, the state of continuous acquisition equipment is realized according to the period of data acquisition, and the data is scientifically analyzed according to the method of data analysis of dielectric loss, and the data is diagnosed in time, and the system is predicted and analyzed according to the parameters. To achieve early detection of problems, early warning, so as to improve the reliability of equipment. At the same time, the system can realize the interface with the dispatching system, monitor the equipment status remotely, realize the selective early overhaul of the defective equipment or possibly defective equipment, and reduce the loss caused by multiple power outages. Provide technical support for unattended substation through remote monitoring. This system adopts C language as the development foundation, integrates the C#, data and electronic technology to design many technologies, realizes the transformer casing dielectric loss on-line monitoring. Through this system, the automation of the dielectric loss monitoring is improved, and the working complexity is reduced.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM855
本文编号：2202516
[Abstract]:Power system is composed of five links: generation, transmission, substation, distribution and power consumption. Transformer is an important core equipment in substation, and the operation state directly affects the safe and stable operation of electric power. The dielectric loss is an important index to measure the reliability of transformer. In order to ensure the safe operation of the power system, it is necessary to strengthen the monitoring of the insulation of the main transformer in the substation. The measurement of dielectric loss is an essential test item in the preventive experiment of insulation. The measurement of dielectric loss can reflect a series of defects in the insulation of electrical equipment, such as dampness of insulation, dirt or deterioration of oil or maceration, discharge of air gap in insulation and so on. Therefore, dielectric loss measurement is an essential test item in insulation preventive experiment. In a substation, capacitive equipment accounts for 40% to 50% of the total number of substation equipment. The most important of these equipments is the main transformer casing, the equipment that is most prone to accidents in all the casing equipments, so a lot of work is required in the preventive test, and its state is related to the operation of the power grid. If the equipment fails, it will not bring economic benefits to the power loss, serious possible disaster, the failure of the power sector to pay a huge price. To ensure the reliability of the system, a lot of manpower and material resources are needed. Therefore, the monitoring of transformer bushing can not only ensure the safety of power network equipment, but also obtain economic benefits. Through the construction of this system, it can monitor the working condition of substation main transformer casing equipment in real time, reduce unnecessary outage and overhaul time, save manpower and maintenance expenses, reduce cost, and win more precious time for electric power operation. Achieve greater economic benefits. Through on-line monitoring technology, the state of continuous acquisition equipment is realized according to the period of data acquisition, and the data is scientifically analyzed according to the method of data analysis of dielectric loss, and the data is diagnosed in time, and the system is predicted and analyzed according to the parameters. To achieve early detection of problems, early warning, so as to improve the reliability of equipment. At the same time, the system can realize the interface with the dispatching system, monitor the equipment status remotely, realize the selective early overhaul of the defective equipment or possibly defective equipment, and reduce the loss caused by multiple power outages. Provide technical support for unattended substation through remote monitoring. This system adopts C language as the development foundation, integrates the C#, data and electronic technology to design many technologies, realizes the transformer casing dielectric loss on-line monitoring. Through this system, the automation of the dielectric loss monitoring is improved, and the working complexity is reduced.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM855
【参考文献】
相关期刊论文 前2条
1 苏鹏声,王欢;电力系统设备状态监测与故障诊断技术分析[J];电力系统自动化;2003年01期
2 施春耿;电气设备在线监测技术探讨[J];福建电力与电工;1996年03期
，本文编号：2202516
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