电力系统保护与控制Issue(1)：55-60,6.
频率的时空分布对低频减载的影响研究
Research of the UFLS under the frequency characteristics of temporal and spatial distribution
摘要
Abstract
With the impact of grid structure, generators distribution, generator units parameters, and load type, the system’s frequency characteristics presents temporal and spatial distribution. However, system frequency is the reference for formulating the UFLS scheme, which makes the action of UFLS device unsatisfactory. Based on the grid splitting in some region, this paper analyzes the dynamic characteristics of system frequency and the action of UFLS device in detail under the power shortage. Considering the impact factors such as frequency recovery effect, load shedding values and its types, etc., it studies the influence of load characteristics on frequency and proposes two research programs including decentralized load shedding and centralized cutting industrial load of large consumer. The research results show that cutting industrial load of large user can quickly restore the system frequency and have smaller influence on the residents’ load, therefore it has significant reference value on control strategy of frequency recovery in the grid operation and making the program of the UFLS. This work is supported by National Natural Science Foundation of China (No. 51367016).关键词
频率/频率特性/时空分布特性/第三道防线/低频减载Key words
frequency/frequency characteristics/temporal and spatial distribution/third-defense-line/UFLS分类
信息技术与安全科学引用本文复制引用
樊艳芳,钟显,常喜强,王衡,周专..频率的时空分布对低频减载的影响研究[J].电力系统保护与控制,2015,(1):55-60,6.基金项目
新疆维吾尔自治区高校科研重点项目(XJEDU2011I05)；国家自然科学基金项目(51367016) （XJEDU2011I05）
