本文通过对某钢铁企业南变电力系统的稳定性分析，给出了低频减载和区域安全稳定控制两种方案。
Through analysis of the stability of NanBian power supply system in a steel enterprise, under-frequency load-shedding plans and regional security and stability control plans are adopted in this paper.
介绍一种自适应型低频减载装置的方案，它依据频率和频率的变化率，动态的确定减负荷装置的动作情况。
This paper presents an adaptive scheme that USES both frequency and rate-of-change of frequency measurements to dynamically set ULFS relays if more than one generation outage is experienced.
该策略在负荷频率调节效应检测的基础上辨识出负荷的频率刚性大小，并基于此实现低频减载的策略优化。
Based on the frequency regulation effects, the strategy identifies the frequency rigidity of loads and optimizes the UFLA strategy.
这里介绍一种自适应型低频减载装置的方案，它依据频率和频率的变化率，动态地确定减负荷装置的动作情况。
This paper presents an adaptive scheme that USES both frequency and rate of change of frequency measurements to dynamically set ULFS relays.
这里介绍一种自适应型低频减载装置的方案，它依据频率和频率的变化率，动态地确定减负荷装置的动作情况。
An adaptive scheme is presented which USES both frequency and its change rate to dynamically set the functioning condition of UFLS Thes. The s...
这里介绍一种自适应型低频减载装置的方案，它依据频率和频率的变化率，动态地确定减负荷装置的动作情况。
An adaptive scheme is presented which USES both frequency and its change rate to dynamically set the functioning condition of UFLS r...
低频减载(UFLS)无疑是一种抑制频率下降的有效方法，它依据测量到的频率值，按轮次分步骤地减掉负荷。
Underfrequency load shedding (UFLS) is a widely accepted effective measure to repress further frequency drop. Most of UFLS schemes use pre specified steps based on measured frequency to shed load.
进行系统低频减载方案设计时，简单的频率响应模型由于未考虑系统电压对频率过程的影响而导致不少情况下无法适用。
During the design of under frequency load shedding (UFLS) schemes, some simple models for frequency dynamics analysis are obviously inadequate since they do not take system voltage into account.
其次，提出了一种自动调整低频减载装置动作频率值的理论，低频减载装置将根据局部频率最大终值和最小终值来改变其设定值。
Secondly, a theory that can automatically adjust the action frequency of UFLS device is applied. UFLS device can adjust setting value by maximal and minimum final value of local frequency.
介绍的低频低压自动减载控制系统可以有效地保障电力系统的正常运行。
Automatic load reduction control system introduced here can effectively ensure normal operation for power system.
电力系统“三道防线”概念的提出，更增强了低频低压减载设备的地位。
Power system of the "three lines of defense" concept put forward, more enhanced low-frequency-low-voltage load shedding equipment status.
电力系统“三道防线”概念的提出，更增强了低频低压减载设备的地位。
Power system of the "three lines of defense" concept put forward, more enhanced low-frequency-low-voltage load shedding equipment status.
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