甚高频技术在变频压缩机组绝缘在线监测的应用

李岚鑫¹，钱迪²，李海超³，黄健⁴，肖建⁵

（1.国家管网集团西部管道公司，新疆乌鲁木齐   830000； 2.国家管网集团北京管道有限公司，北京   100101；3.国家管网集团西北分公司银川输油气分公司，宁夏 银川   750000;   4. 黄健 中石化江汉石油工程设计有限公司 湖北 武汉430000；5.天津安源科技发展有限公司, 天津 300000)

摘要   本文首先对变频压缩机组绝缘监测的重要性进行了探讨，通过对变频压缩机组中噪声的分析和研究，揭示出变频压缩机组中高频谐波的产生机理和危害，在此基础上提出甚高频局放检测技术对高频谐波的屏蔽作用，通过对现场设备的检测实验成功验证了甚高频技术的抗干扰性能，天津安源公司的甚高频技术成功应用在国家管网变频压缩机组的绝缘状态监测中。

关键词   变频压缩机组；甚高频脉冲电流局放检测技术；高频谐波；

Application of Very High Frequency Technology in Insulation Online Monitoring of Variable Frequency Compressor Units

LILanxin¹   QIANDi²   LIHaichao³   HUANGJian⁴   XIAOJian⁵

(1. National Pipeline Network Group Western Pipeline Company, Urumqi, Xinjiang 830000; 2. National Pipeline Network Group Beijing Pipeline Co., Ltd., Beijing 100101; 3. Yinchuan Oil and Gas Transportation Branch of National Pipeline Network Group Northwest Branch, Yinchuan, Ningxia 750000; 4.Sinopec Jianghan Petroleum Engineering Design Co., Ltd. Wuhan, Hubei 430000; 5. Tianjin Anyuan Technology Development Co., Ltd., Tianjin 300000）

Abstract   This article first discusses the importance of insulation monitoring for variable frequency compressor units. Through the analysis and research of noise in variable frequency compressor units, the mechanism and harm of high-frequency harmonics in variable frequency compressor units are revealed. Based on this, the shielding effect of very high frequency partial discharge detection technology on high-frequency harmonics is proposed. The anti-interference performance of very high frequency technology is successfully verified through on-site equipment testing experiments. The very high frequency technology of Tianjin Anyuan Company has been successfully applied in the insulation status monitoring of variable frequency compressor units in the national pipeline network.

Keywords   Variable frequency compressor unit; Ultra high frequency pulse current partial discharge detection technology; High frequency harmonics;