电力系统自动化2013，Vol.37Issue(4)：51-56,61,7.DOI:10.7500/AEPS201202147
基于暂态频率偏移安全性的低频减载方案优化
Optimization of Under-frequency Load Shedding Schemes Based on Transient Frequency Deviation Security
摘要
Abstract
Under-frequency load shedding (UFLS) scheme with starting frequency and time delay is widely used in China.UFLS scheme designed with traditional method is rough and difficult to adjust because of model simplifications.To satisfy the requirement of maximum system power deficit, a new method is proposed to optimize UFLS schemes based on transient frequency deviation security (TFDS).Criteria of basic levels are treated as two-element tables of transient frequency security.Transient and steady frequency constraints are quantitatively considered with TFDS.Considering the effect of voltage dynamics on UFLS, voltage variation is converted to frequency deviation to improve adaptability of the UFLS scheme.Simulations show that the proposed UFLS scheme can be properly designed to effectively control frequency deviation.Frequency stability information can also be obtained with this method.关键词
电力系统/低频减载/暂态频率偏移安全性/平均系统频率/频率稳定Key words
power system/ under-frequency load shedding (UFLS)/ transient frequency deviation security (TFDS)/ average system frequency (ASF) / frequency stability引用本文复制引用
李常刚,刘玉田,邱夕兆..基于暂态频率偏移安全性的低频减载方案优化[J].电力系统自动化,2013,37(4):51-56,61,7.基金项目
国家自然科学基金资助项目(50807031) （50807031）
国家科技支撑计划资助项目(2011BAA07B03). （2011BAA07B03）
