摘要
结合电铁牵引负荷的谐波特性与包含大量异步风电机组的风电场中升压站低压侧谐振点频带较宽的特点,针对新疆部分地区电网在同一点同时接入电气化铁路和风电场的情况,从理论上分析了电铁谐波对风电场运行特性的影响,并在仿真软件中搭建了新疆某地区电网模型,对风电场投运风机数量不同时电铁牵引负荷在不同工况下可能引发风电场升压站低压母线处谐振现象进行了仿真分析和评估,提出了减小电铁谐波对风电场影响的建议和措施,具有一定的实际意义。
Combining the harmonic characteristics of electrified railway traction load with the characteristics that low-pressure side of booster plant in wind farm which contains a large amount of asynchronous wind turbine generators holds wide-frequency channel of resonance point,and aiming at the phenomenon that electrified railway and wind farm connect with power grid at the same point and at the same time in some area of Xinjiang,the influence of electrified railway harmonic on the operation features of wind farm is analyzed theoretically.The grid model for a area in Xinjiang is established in the simulation software,the resonance phenomena at LV busbar of booster plant are analyzed and evaluated which may be caused under different operating condition when the number of running wind generators are variable.And the suggestions and measures are proposed to reduce the influence of electrified railway harmonic on wind farm,which has some practical significance.
出处
《四川电力技术》
2011年第1期8-12,共5页
Sichuan Electric Power Technology
基金
新疆教育厅重点项目(XJEDU2008I62)
关键词
电气化铁路
不平衡谐波
异步风电机组
谐振
electrified railway
unbalance harmonic
asynchronous wind turbine generator
resonance
