重要供电小区低频减载的研究

Research on Under Frequency Unloading of Important Power Supply Area

文章分析了重要供电小区的供电安全可靠性与低频减载整定问题。指出对于功率缺额较大的供电小区 ,传统的低频减载整定方案不能满足抑制频率下降的要求 ,针对具体情况重点研究了切实可行的低频减载整定方案 。

After analyzing the power supply reliability and setting pro blem of under frequency unloading of important power supply area, the authors po int out that the traditional setting scheme for under frequency unloading system for an large area short of power source can not meet the requirement to inhibit the decline of the system frequency. Practicable setting schemes are investigat ed based on actual conditions of under frequency unloading setting. And the corr esponding measures to improve reliability are proposed.