摘要
从静态电压稳定性角度出发,采取PV曲线方法,综合有功功率裕度和电压-有功灵敏度指标,从机理上分析风电接入后对地区电网电压稳定性的影响,以及风电场无功功率支撑和电网强度对稳定指标的影响,研究结论表明提高无功功率支撑和改善电网结构可有效改善风电接入后的电压稳定性。最后,以我国某风电汇集系统为案例进行仿真研究,验证大规模风电接入对电压稳定性的影响,并提出提高风电接入地区电压稳定性的措施。
Viewed from static voltage stability, by using PV curve method, and index of active power margin and voltage-active power sensitivity, this paper gives mechanism analysis of influence of wind power on grid voltage stability. Also, affection of reactive power from wind farm and local grid strength on the former index is analyzed, result shows that increasing reactive power support and strengthening power grid could improve grid static voltage satiability effectively. A wind power congregation system in China area is simulated to verify the theory, at last, some measurements to improve voltage stability are proposed.
出处
《中国电力》
CSCD
北大核心
2015年第3期139-143,共5页
Electric Power
关键词
风电
静态电压稳定
PV曲线
稳定指标
wind farm
static voltage stability
PV curve
stability index
