摘要
为了确保电气化铁路(以下简称电铁)接入点附近风电机组的安全运行,研究了电铁对风电场的影响。分析牵引供电系统三相不平衡的原因,介绍两类典型牵引负荷的基本特点。通过搭建基于PSCAD的电铁模型,验证了牵引负荷对电网电能质量的影响。最后以桂林电网为例进行仿真,分析了电铁接入对风电场的影响。仿真结果表明,电铁的接入会使风电场接入点电能质量恶化。为了防治电铁谐波,同时降低其对风电场的影响,提出了相关建议。
In order to guarantee the security operation of wind farm near the access point of electrified railway, the influence of electrified railway to wind farm is studied. The reason of three-phase unbalance of traction power supply system is analyzed, and basic characteristics of two kinds of typical traction load are introduced. By constructing the electrified railway model based on PSCAD, the influence of traction load to power quality of power grid is verified. Finally, Guilin power grid is taken as a simulation exan^ple to analyze the influence of electrified railway connected to wind farm. Simulation results show that the connection of electrified railway will deteriorate the power quality of wind farm at the access point. Corresponding suggestions are proposed to prevent the harmonic of electrified railway and at the same time reduce the influence of electrified railway to wind farm.
出处
《广西电力》
2015年第6期5-9,共5页
Guangxi Electric Power
