摘要
在分析V/v型牵引变压器结构特点的基础上,提出了电气化铁路接入系统的等值方法,并推导了电气化铁路的谐波和不平衡负荷模型。在ETAP软件中,根据不同的牵引供电臂负荷电流组合方式,对沪宁城际铁路在江苏电网中引起的谐波和负序进行仿真分析。按照国标规定对仿真结果进行评估,各项指标都在允许的范围内。
Based on analysis to the design feature of V/v type traction transformer, this paper proposed the equivalent method of electric railroads connecting to grid, making a deduction for harmonics and an unbalanced load model. This paper simulated and analyzed the influence of harmonics and negative sequences produced by Shanghai-Nanjing intercity railroad on Jiangsu power grid in ETAP software, depending on different combination types of traction power supply arm load current. The simulation results are evaluated according to the national standards and all related indicators are within the limits.
出处
《电工电气》
2011年第11期32-36,共5页
Electrotechnics Electric
关键词
V/v型牵引变压器
谐波
负序
ETAP软件
V/v type traction transformer
harmonic
negative sequence
ETAP software
