摘要
高原地区高速铁路牵引供电系统电流大、所需供电电压等级高,但高海拔地区配电网较为薄弱,为保障高铁供电采用长距离供电产生大量的非线性、波动性负荷,导致无功、负序和谐波等电能质量问题较为突出,给电力系统及牵引供电系统的稳定运行造成威胁。因此,本文采用专业电能质量测试装置,对国内高原地区某高速铁路线的典型牵引变电所开展供电品质综合测试,并基于国家相关标准定量评估该牵引变电所电压偏差、功率因数、谐波、负序等电能指标,这对于保障电气化铁路安全稳定运行具有重要意义。
The high-speed railway traction power supply system in the plateau area has large traction current and high power supply voltage level,but the power distribution network in high-altitude areas is relatively weak.Power quality problems such as negative sequence and harmonics are more prominent,posing a threat to the stable operation of the power system and traction power supply system.Therefore,in this paper,a professional power quality testing device is used to cany out a comprehensive test of the power supply quality of a typical traction substation of a high-speed railway line in a high-speed railway line in China,and quantitatively evaluate the voltage deviation,power factor,harmonics of the traction substation based on relevant national standards,negative sequence and other power indicators,which is of great significance for ensuring the safe and stable operation of electrified railways.
作者
张云峰
赵忠伟
余宗灿
王明涛
赵金泽
曹宇
ZHANG Yunfeng;ZHAO Zhongwei;YU Zongcan;WANG Mingtao;ZHAO Jinze;CAO Yu(Kunming Power Supply Section of China Railway Kunming Bureau Group Co.,Ltd.,Kunming,Yunnan 650000,China;Tangshan Research Institute of Southwest Jiaotong University,Tangshan,Hebei 063301,China)
出处
《自动化应用》
2023年第3期134-135,138,共3页
Automation Application
关键词
高原地区
高速铁路
供电品质
plateau area
high-speed railway
power supply quality
