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电网技术  2011 

分解协调式节点阻抗矩阵生成算法的并行实现

, PP. 99-104

Keywords: 分解协调法,节点阻抗矩阵,并行计算,在线整定

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Abstract:

节点阻抗矩阵的快速生成和修改是电力系统短路实时计算的关键,而后者是继电保护在线自适应整定实现的前提。将互联大电网以节点撕裂方式分解为相互无电磁联系的独立子网,各子网通过撕裂节点间的虚拟断路器桥接,各子网并行求得独立节点阻抗矩阵后,采用分解协调法来计及各子网的电磁联系,利用大变化灵敏度理论修正各子网的独立节点阻抗矩阵,从而得到整个电网的节点阻抗矩阵。仿真验证了该并行算法的有效性和正确性。

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