配电系统中各支路的电阻与其电抗的比值较大,因此,经典的快速解耦潮流计算方法不适用于配电系统潮流计算.提出了一种坐标旋转变换方法,并将这种变换方法与经典的隐式Zbus高斯方法相结合,导出了配电系统的解耦潮流计算方法.以IEEE 33节点、IEEE 69节点和一个实际的145节点配电系统为例,对提出的解耦潮流算法进行了测试.结果表明,所提出的解耦方法不影响经典的隐式Zbus高斯方法的收敛性,因而是一种高效、实用的快速潮流计算方法.%In power distribution system,the ratio of resistance and reactance is comparatively high,making the classic fast decoupled load flow method unsuitable for load flow calculation in distribution system anymore.Therefore,a kind of coordinate rotation transformation method is proposed.By combining this transformation method with the classic implicit Zbus Gauss method,the decoupled load flow method is successfully deduced for distribution system.Taking the IEEE 33-bus,IEEE 69-bus,and an actual 145-node distribution system as examples,this paper tests this decoupled load flow method in detail.The results demonstrate that the proposed decoupled method is of high efficiency and practicability since it does not influence the convergence property of classic implicit Zbus Gauss method.
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