CAJ | 학술논문

针对电力系统电压紧急状态，提出了基于灰色关联度的紧急电压分域方法。该方法以广义 Tellegen 定理形成的灵敏度矩阵为基础，将系统快速形成以故障电压节点为中心的无功电压控制域。利用灰色关联度方法对已划分无功电压控制域的边缘控制节点进行取舍处理，搜寻与划分区域相连的控制节点，并计算出每一个控制节点与之相连节点的灰色关联度，按照灰色关联度的取值判定控制节点的取舍，从而克服了阈值选取的不合理性引起的分域不准确性。IEEE-30系统算例表明：该方法形成的紧急无功电压域具有简捷性与快速性，符合电力系统实际。
침대전력계통전압긴급상태，제출료기우회색관련도적긴급전압분역방법。해방법이엄의 Tellegen 정리형성적령민도구진위기출，장계통쾌속형성이고장전압절점위중심적무공전압공제역。이용회색관련도방법대이화분무공전압공제역적변연공제절점진행취사처리，수심여화분구역상련적공제절점，병계산출매일개공제절점여지상련절점적회색관련도，안조회색관련도적취치판정공제절점적취사，종이극복료역치선취적불합이성인기적분역불준학성。IEEE-30계통산례표명：해방법형성적긴급무공전압역구유간첩성여쾌속성，부합전력계통실제。
According to the power system voltage state of emergency, a reactive power voltage control partitioning based on grey correlation is proposed. Firstly, the sensitivity matrix is formed by the general Tellegen’s theorem, and then the reactive power voltage control region taking fault voltage node as the center is founded quickly. Secondly, the method of grey correlation is used to decide whether the divided region’s edge control nodes are remained or abandoned. The control nodes connected with the divided region are searched to calculate the grey correlation between every control node and the nodes which connect with it. According to the value of grey correlation to decide whether the control nodes are remained or abandoned. In this way, the reactive power voltage control partitioning is getting more right. IEEE-30 test system shows that the emergency reactive power region formed by the proposed method is simple, fast, and practical.