摘要
电气化铁路作为电力系统的一个特殊用户,其负荷具有非线性、不对称和波动性的特点,可能威胁电力系统的安全运行。文章介绍了牵引负荷在电力系统中引起的负序电流对电力系统的影响及降低和限制负序电流的措施;针对电气化铁路负荷功率因数较低的现象,分析了无功补偿的必要性以及目前存在的问题和解决措施。通过分析表明可以把电气化铁路对电力系统的影响降到最低。
The electrified railroad is a fluctuating high - power single - phase commutation load, which may threat power system security operation. This paper introduces the impact of the negative sequence electric current on the power system which caused by traction load, and the way to reduce it. Because the power factor is low,the reactive power compensation is important. This paper explains the problems of the reactive power compensation and how to solve them.
出处
《河南机电高等专科学校学报》
CAS
2008年第2期91-93,共3页
Journal of Henan Mechanical and Electrical Engineering College
关键词
电气化铁路
电力系统
负序电流
功率因数
electrified railroad
Electrical power system
negative sequence electric current
power factor
