紫外放电检测量化表征及预测方法研究  

Characterization and prediction methods study to quantify UV discharge detection

作　　者：马立新[1] 张骏[1] 浦荣杰 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《电测与仪表》2015年第1期106-110,共5页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(61205076);国家科技部政府间科技合作项目(2009014)

摘　　要：随着智能电网的建设和电压等级的提高,局部放电已经成为输变电设备,特别是高压电气设备上绝缘介质老化的重要原因,因而局部放电的检测和量化评估也就成为绝缘介质状况监测研究的关键。文中构筑一套新型的紫外放电监测系统,提出用设备放电的物理量来表征放电的状态,以光子数来量化放电强度,进而定量评估设备绝缘性能和预测设备寿命。有效解决了对早期放电难以定量计测,无判断设备更新标准的难题。通过计算仿真以及集成系统的测试,该系统能实时地监控高压电器放电并且判断放电强度,验证了该方法的可行性和有效性。对局部放电紫外检测领域的研究具有一定的理论意义,对电力系统安全运行及实现输变电设备在线监测提供了有效的解决方案,为紫外检测标准的建立打下了基础。With the construction of smart grid and the improvement of voltage level, partial discharge has become an important reason for the dielectric aging of power transmission equipment and high-voltage electrical equipment. Thus, the detection and quantitative assessment of partial discharge become the key issue in the research of insulation media condition monitoring. This paper builds a new UV discharge monitoring system, which proposes the characterization of discharge state with the physical quantity of the discharge and the quantization of discharge intensity with the number of photons. Then the insulation performance of the equipment is quantitatively assessed, and the equipment life is pre- dicted. Therefore, the problem of quantitative measurement for early discharge and lack of judgment standard for e- quipment upgrade is effectively solved. Computing simulation and test on the integrated system show that the system can monitor real-time voltage electrical discharge and determine discharge intensity, which verifies the feasibility and effectiveness of this method. The result has certain theoretical significance for the partial discharge detection with UV. It also provides an effective solution for the safe operation of power systems and online monitoring of power transmission equipment, and lays the foundation for the establishment of UV detection criteria.

关 键 词：紫外检测 信息量化 放电强度 状态预测 

分 类 号：TM933.4[电气工程—电力电子与电力传动]