变电设备在线监测技术及状态检修的研究

发布时间：2018-07-08 09:03

本文选题：变电设备 + 在线监测　；参考：《华北电力大学》2015年硕士论文

【摘要】：随着电力系统自动化的迅速发展,对供电可靠性的要求日益提高。对于电力变压器—电力系统中的重要电气设备的安全运行水平、经济效益以及对可靠性的要求也越来越高。为了适应目前形势对电力系统的要求,必须大力开发智能化的在线检测方法及故障诊断策略。由于在线检测技术和成熟的故障诊断技术的应用可大大提高变电站一次设备安全可靠性,延长变电设备安全使用寿命,提高变电设备利用率。因此老式的预防性检修体系已经逐渐被以在线检测及故障诊断研究技术为基础的状态检修体系所代替。本文分析变电站主变、高压断路器、容性设备、氧化锌避雷器的故障及其监测原理,研究各种监测原理的应用范围,着重理解目前应用广泛的几种在线监测技术。对比分析变压器、断路器、容性设备、氧化锌避雷器在线监测技术,研究在线监测技术的工程应用；通过工程实际应用的故障诊断案列,对在线监测技术的优缺点和实际应用的注意点进行详细分析。对变电一次电设备的状态评估方法和故障诊断技术进行分析研究。研究状态评估方法和故障诊断技术以及状态检修的关键技术,为状态检修工作的后续开展奠定坚实的基础。本文就在线监测和故障诊断的理论和实践应用进行研究,通过对状态检修理论和实践应用中的难题进行分析和探讨,总结出适合变电站设备实际的状态检修工作方法。
[Abstract]:With the rapid development of power system automation, the requirement of power supply reliability is increasing day by day. The requirements of safety, economic benefit and reliability of important electrical equipment in power transformer-power system are also higher and higher. In order to meet the requirements of the current situation for the power system, it is necessary to develop intelligent on-line detection methods and fault diagnosis strategies. The application of on-line detection technology and mature fault diagnosis technology can greatly improve the safety and reliability of substation primary equipment, prolong the safe service life of substation equipment, and improve the utilization ratio of substation equipment. Therefore, the old-fashioned preventive maintenance system has been gradually replaced by the condition-based maintenance system based on on-line detection and fault diagnosis research technology. This paper analyzes the faults and monitoring principles of substation main transformer, high voltage circuit breaker, capacitive equipment and zinc oxide arrester, studies the application scope of various monitoring principles, and emphasizes on understanding several online monitoring techniques which are widely used at present. Compare and analyze the on-line monitoring technology of transformer, circuit breaker, capacitive equipment and zinc oxide arrester, and study the engineering application of on-line monitoring technology. The advantages and disadvantages of online monitoring technology and the practical application of the points of attention are analyzed in detail. The state evaluation method and fault diagnosis technology of primary substation equipment are analyzed and studied. The research on the status assessment method, fault diagnosis technology and the key technology of condition-based maintenance lays a solid foundation for the subsequent development of condition based maintenance. In this paper, the theoretical and practical application of on-line monitoring and fault diagnosis is studied. Through the analysis and discussion of the difficulties in the theory and practice of condition-based maintenance, the working methods of condition-based maintenance suitable for substation equipment are summarized.
【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】：TM76;TM63

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