配电网可靠性评估方法的研究

将树的操作方法融入到馈线分区和网络等值的思想中,提出一种能快速实现复杂配电网可靠性评估的分区等值法.首先运用改进的后序遍历法快速形成最小故障区,在故障解析时以最小故障区为单位进行向上和向下等效.在等效过程中利用最小故障区中根节点承上启下的作用,将各区之间的故障影响关系用根节点的等效参数来表示,从而解决了馈线分区,等效节...

Study on Reliability Assessment of Distribution Network

A division equivalent method for complex distribution network reliability assessment is proposed in this paper. The most important feature of this method is the integration of tree algorithm and network equivalent theory. The advanced post order traversal is put forward firstly in paper for the division of minimum fault zone (MFZ). Then Regarding the MFZ as unit during the fault analysis can make reliability assessment efficient. In the equivalent process, it takes advantage of the connection function of the root node of MFZ, and the interaction in branches is expressed equivalently by the equivalent parameters of root node. Thus this paper well solved the following problems: division of feeders, selection of equivalent node and simplification of network. Comparison results show that this proposed method has the computational efficiency, and it is suitable for complex distribution network.