摘要
根据实时测量的负荷节点的电压、电流相量,将整个系统等值为一简单的两节点系统,在此基础上进行电压稳定性分析,提出了将负荷阻抗模与系统等值阻抗模之比作为电压稳定性指标,该指标能快速估计节点电压稳定性。通过IEEE300节点系统算例,验证了该分析方法是一种简单、快速、有效的方法,且可应用于电力系统电压稳定性的实时监控。
According to the voltage and current vector at the load bus which is measure in real-time, the whole system can he equivalent to a simple 2-bus system and based on which the voltage stability analysis is carried out and a method by which the stability of nodal voltage can be quickly estimated with the defined index is presented. By means of the calculation example of IEEE300 bus system the verification result shows that the presented method is simple, fast and effective and can be used to the real-time supervision and control of power system voltage stability.
出处
《电力科学与工程》
2010年第5期34-37,共4页
Electric Power Science and Engineering
关键词
电力系统
实时等值阻抗
电压稳定性分析
power system
real-time equivalent impedance
voltage stability
analysis
