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根据临界点条件 ,对电压稳定弱节点紧急无功补偿模式进行了研究 ,提出了“预支模式”和“分级跟踪模式”两种紧急无功补偿的调控模式 ,并对其补偿效果进行了分析。探讨了“预支模式”有可能使紧急无功补偿进入误区的问题 ,推导出每次投入电容器的上限值 ,指出将静止无功补偿器(SVC)用于“分级跟踪模式”能有效提高弱节点的电压稳定性
According to the condition of critical point, the emergency reactive power compensation mode of voltage stabilized weak node is researched. Two emergency reactive power compensation modes of “pre-support mode” and “hierarchical tracking mode” are proposed and their compensation effects are analyzed. This paper discusses the possibility of “pre-support mode” making the emergency reactive power compensation into the wrong area, and deduces the upper limit value of each capacitor. It points out that using static var compensator (SVC) as the “hierarchical tracking mode” Voltage stability of the node