中国电力 ›› 2016, Vol. 49 ›› Issue (7): 135-139.DOI: 10.11930/j.issn.1004-9649.2016.07.135.05

• 新能源 • 上一篇    下一篇

电气化铁路牵引负荷接入电网对风电场影响仿真分析研究

毛光辉1, 秦睿2, 郝如海2, 杨萍2, 黄葆文2   

  1. 1. 国网甘肃省电力公司,甘肃 兰州 730050;
    2. 国网甘肃省电力公司电力科学研究院,甘肃 兰州 730050
  • 收稿日期:2016-02-13 出版日期:2016-07-20 发布日期:2016-07-28
  • 作者简介:毛光辉(1967—),男,安徽淮北人,硕士,高级工程师,从事电力系统稳定分析方面研究。E-mail: 2276808470@qq.com

Modeling Analysis of the Influence of the Electric Traction Load Integration on Wind Farms

MAO Guanghui1, QIN Rui2, HAO Ruhai2, YANG Ping2, HUANG Baowen2   

  1. 1. State Grid Gansu Electric Power, Lanzhou 730050, China;
    2. State Grid Gansu Electric Power Research Institute, Lanzhou 730050, China
  • Received:2016-02-13 Online:2016-07-20 Published:2016-07-28

摘要: 电力牵引机车是大功率的单相整流负荷,具有非线性、不对称、波动性大的特点;供电臂内列车的数量和每一列机车的运行状态呈随机波动性,会造成电网电压波动,导致电能质量出现问题。针对兰新二线电气化铁路(以下简称“电铁”)牵引负荷运行密度大、速度高、距离风电场近等特征,利用电力系统综合分析程序PSASP以及ETAP仿真软件对电铁负荷运行引起的电压和频率偏差、电压波动及谐波等问题的机理进行了仿真建模计算,重点分析了牵引变电站接入电网对风电场机组产生的影响。

关键词: 电网, 电力系统, 牵引负荷, 风电场, 电能质量, 谐波, 频率, 电压

Abstract: Electric traction locomotive generates a single-phase rectifier load which has the nonlinear, asymmetric and large fluctuation characteristics. The stochastic volatility of the numbers of trains within one feeding section and the running status of each locomotive may result in voltage fluctuation of power grid, which will deteriorate the power supply quality. In view of the traction load characteristics of the Lanzhou-Xinjiang second electric railway, which is large in operation density, high in running speed and short in distance to the nearby wind farms, a model simulation is made by using the power system simulation software, including PSASP and ETAP, to analyze the mechanisms for a series of problems such as voltage and frequency deviation, voltage fluctuation and harmonic waves, with the focus paid to the influence of the integration of the traction substation into the power grid on the wind generator units.

Key words: power grid, power system, traction loads, wind farm, power quality, harmonic, frequency, voltage

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