电测与仪表2017，Vol.54Issue(6)：17-22,43,7.
牵引机车过分相时高频谐波分析及对电缆终端发热问题研究
The analysis of high frequency harmonic and the research of the problem for cable termination during passing natural section of traction locomotive
赵庆杰 1周凯 1吴科 1何珉 1侯振奇1
作者信息
- 1. 四川大学 电气信息学院,成都 610065
- 折叠
摘要
Abstract
In allusion to the high frequency harmonic in the excessive phase of traction engine, which results in the quickly degradation of terminal insulation of stress control cables.This paper studied the change of the voltage, the current and the wave form deviation rate of voltage in the excessive phase and the effect of high frequency harmonic on the cable terminal., which built the high frequency and high voltage aging experiment device, applied different frequency and values of voltage to the cable terminal, meanwhile, it analyzed the effects of high frequency on the hot spots of the cable terminal with the infrared thermal image instrument.In addition, by the electric field simulation, it found that, under the effect of high-frequency voltage the field strength of cable terminal outer semi-conductive layer truncation is significantly stronger than that under power frequency voltage.The results show that the fluctuation of voltage and current is more noticeable in the excessive phase of traction engine, which results in serious harmonic and the high frequency harmonic content is rich, and under the action of high frequency voltage, the temperature rise of hot pot in the terminal of stress control cables is significantly higher than that under power frequency voltage.关键词
牵引机车/高频谐波/电缆终端/红外成像/热点温升Key words
traction locomotive/high frequency harmonic/cable terminal/infrared imaging/hot-spot temperature rise分类
信息技术与安全科学引用本文复制引用
赵庆杰,周凯,吴科,何珉,侯振奇..牵引机车过分相时高频谐波分析及对电缆终端发热问题研究[J].电测与仪表,2017,54(6):17-22,43,7.
