摘要
大规模风电接入系统对电力系统的电能质量影响较大。文章分析了风电场闪变和谐波产生的原理,根据IEC和其它相关标准计算了系统连续运行情况下新疆电网达坂城地区风电场的电压变动、电压偏差、闪变、谐波和传递至电网负荷节点后的闪变值,分析了风电场因故切除后的系统频率偏差,同时指出制定风电发展规划时需对电网传输功率、无功功率和电压控制方式、机组组合方式和系统稳定性等方面进行分析。
Large amount of wind power integration into power system brings great influence on the power quality. The voltage deviation, voltage fluctuation, flicker, harmonics and frequency deviation are main aspects of power quality problems. Firstly, the reason causing the power quality problems is analyzed. Secondly, taking a real power system with several wind farms for an example, the voltage deviation, voltage fluctuation, flicker severity and harmonics due to wind farm are calculated based on the IEC standards and national standards. Then, the voltage deviation, flicker severity and harmonic current emission under continuous operation are calculated. The frequency deviation after the wind farm being cut off is analyzed.
出处
《电网技术》
EI
CSCD
北大核心
2007年第6期88-92,共5页
Power System Technology
关键词
风力发电
新疆电网
电能质量
谐波
闪变
频率偏差
wind power
quality
harmonics
flicker
Xinjiang power grid
power frequency deviation
