南方电网系统频率特性及低频减载方案
Electric Power(2010)
Abstract
分析评价南方电网发生大功率缺额时,电网频率暂态稳定特性及现有低频减载方案对保证系统频率稳定的作用和效果。提出南方电网低频减载方案评价方法和改进方案。研究表明,采用改进方案,可使系统在受到不同程度的功率缺额扰动时,都能够更好地满足减负荷的需要,保证系统频率不致过低并能较快恢复,有利于系统的频率稳定及大机组的安全运行。
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Key words
frequency characteristic,power system,under-frequency load shedding(UFLS)
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