Development of condition monitoring techniques for SF6 alternatives in high voltage plant

高压电厂SF6替代品状态监测技术的开发

• 批准号: 2856830
• 金额: --
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2856830
• 关键词: Development; condition; monitoring; techniques; SF6

With a drive to reduce the use of SF6 in the power sector, several candidate gases are now commercially available or under evaluation for use in gas insulated high voltage plant. PD monitoring has been established as means for condition assessment of SF6 filled equipment with initial studies demonstrating its potential feasibility for use in alternatives. A project is proposed to fully explore the application of PD detection to SF6 alternative candidate gases, in particular for medium voltage and high voltage switchgear. Propagation of acoustic and electromagnetic energy will be investigated along with detection in different switchgear designs. Laboratory and field measurements will be made on both SF6 and its alternatives to examine the occurrence of PD, characterise different defect types and better understand the potential degradation to the insulation system.A practical and realistic approach will be taken into this research. Different defect types will be collected from equipment that were decommissioned in an attempt to find relevant defects to match the literature. Modeling software will be used throughout this research to calculate and model different experiments and parameters prior to designing a methodology and test setup. This research aims to test various SF6 alternative insulating gases and different defect types therefore a methodological approach will be taken to reduce the overall initial rounds of testing due to the large sample size. Based on the outcome of the small-scale results, the testing will move to real size HV GIS to perform long term monitoring test at a real outdoor substation environment.

随着电力部门减少SF6使用的努力，几种候选气体现已上市或正在评估中，可用于气体绝缘高压设备。局部放电监测已被确定为SF6填充设备状况评估的手段，初步研究表明其用于替代品的潜在可行性。提出了一个项目，以充分探索局部放电检测的应用，SF6替代候选气体，特别是中压和高压开关柜。将沿着研究声波和电磁能的传播以及不同开关设备设计中的检测。本研究将对SF6及其替代物进行实验室和现场测量，以检查局部放电的发生情况，识别不同的缺陷类型，并更好地了解绝缘系统的潜在退化。将从退役设备中收集不同的缺陷类型，以尝试找到与文献匹配的相关缺陷。建模软件将在整个研究过程中使用，以计算和模拟不同的实验和参数，然后再设计方法和测试装置。本研究旨在测试各种SF6替代绝缘气体和不同的缺陷类型，因此，由于样本量大，将采取方法学方法来减少总体初始测试轮次。根据小规模试验结果，试验将转移到真实的尺寸HV GIS，以便在真实的室外变电站环境中进行长期监测试验。