变压器在线监测用传感器研究与应用

发布时间：2018-01-14 11:40

本文关键词：变压器在线监测用传感器研究与应用　出处：《华北电力大学》2014年硕士论文　论文类型：学位论文

更多相关文章： 变压器 在线监测 套管末屏 传感器

【摘要】：电力变压器是电力系统中最重要的电气设备之一。对变压器的运行状态进行实时的在线监测能够及时地对变压器故障进行预警，从而避免造成重大事故，同时也能为变压器故障后检修提供主要的参考信息，节省检修成本，对整个电力工业而言具有重大的意义。变压器在线监测用传感器是变压器在线监测的关键器件，对变压器在线监测用传感器进行设计与应用的研究具有很高的研究价值和应用前景。本文首先分析了变压器在线监测的发展现状，列举了几种主要的变压器在线监测用传感器的研究现状，然后对变压器主要的故障特征信号（过电压，局部放电，，介质损耗）进行研究，对主要故障信号在变压器套管上的表现形式进行理论分析和仿真研究，结合研究结果得出对在线监测传感器性能的设计要求。与此同时对各种变压器在线监测用传感器的原理进行理论分析，根据故障信号的研究结果设计并制作用于在线监测变压器主要故障信号的传感器。最后搭建实验系统对变压器性能进行测试，对所设计的传感器的安装位置进行说明以及对传感器与变压器的融合设计进行研究。并对综合传感器的设计和应用提出设想。
[Abstract]:Power transformer is one of the most important electrical equipment in power system. The real-time on-line monitoring of transformer's running state can timely warn transformer faults and avoid serious accidents. At the same time, it can also provide the main reference information for transformer maintenance after failure, saving maintenance costs. It is of great significance to the whole power industry. The sensor used in transformer on-line monitoring is the key device of transformer on-line monitoring. The research on the design and application of transformer sensor for on-line monitoring has high research value and application prospect. In this paper, the development status of transformer on-line monitoring is analyzed, and several main sensors used in transformer on-line monitoring are listed. Then, the main fault characteristic signals (overvoltage) are given. Partial discharge (PD) and dielectric loss are studied. Theoretical analysis and simulation of main fault signals on transformer bushing are carried out. Combined with the research results, the design requirements of on-line monitoring sensor performance are obtained. At the same time, the principle of various transformer on-line monitoring sensors is analyzed theoretically. According to the research results of the fault signal, the sensor is designed and manufactured for on-line monitoring the main fault signals of the transformer. Finally, an experimental system is built to test the performance of the transformer. The installation position of the designed sensor and the fusion design of the sensor and transformer are described, and the design and application of the integrated sensor are proposed.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM41

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