CAJ | 학술논문

以电力网络无功电压灵敏度为基础，提出基于向量相似度理论的无功电压分区新方法。首先，在分区前，利用广义Tellegen定理计算出网络中每个节点相对于其他节点的无功电压灵敏度，并形成电压无功灵敏度矩阵；其次，利用向量相似度数学方法计算灵敏度矩阵各列的相似度，由此定义了新的电气距离，形成电气距离矩阵；最后，建立模糊相似矩阵，利用模糊聚类理论划分电压控制区域。IEEE-30系统和IEEE-118系统仿真结果表明所提分区方法的准确性和合理性。
이전력망락무공전압령민도위기출，제출기우향량상사도이론적무공전압분구신방법。수선，재분구전，이용엄의Tellegen정리계산출망락중매개절점상대우기타절점적무공전압령민도，병형성전압무공령민도구진；기차，이용향량상사도수학방법계산령민도구진각렬적상사도，유차정의료신적전기거리，형성전기거리구진；최후，건립모호상사구진，이용모호취류이론화분전압공제구역。IEEE-30계통화IEEE-118계통방진결과표명소제분구방법적준학성화합이성。
Based on reactive voltage sensitivity of the power network, this paper proposes a new method about reactive power voltage control partitioning, which bases on vector similarity theory. Firstly, general Tellegen's theorem is used to calculate the reactive voltage sensitivity of each node corresponding to other nodes, and the reactive power voltage sensitivity matrix is formed. Secondly, mathematical methods of vector similarity are used to calculate similarity among columns of the matrix, and a new electric range is defined to form electrical distance matrix. Lastly, fuzzy similar matrix is established and fuzzy clustering theory is used to divide voltage control regions. IEEE-30 system and IEEE-118 system show that the method of partition is accuracy and reasonable.