Tianjin University

Tianyu Zhang

Jing Min Xu

Chengshan Wang

Kuangyu Kong

Fengzhang Luo

Xiaoyu Qiu

Jiacheng Fo

Qiubo Zou

Xuan Wu

Nan Ge

Shengyuan Wang

A method of analytical calculation of power supply reliability indexes of a power distribution network includes (A1) acquiring parameters of the power distribution network; (A2) building a reliability calculation model, which includes treating the power distribution network as a node-branch calculation unit and numbering nodes and branches in the power distribution network; (A3) building correlation matrices, and calculating a power supply path matrix and a tie-line matrix, wherein the correlation matrices are a node-branch association matrix, a section switch matrix and a fuse matrix; (A4) deriving a fault incidence matrix through the power supply path matrix, the section switch matrix, the fuse matrix and the tie-line matrix, and calculating the reliability indexes of the nodes and the power distribution network; and (A5) identifying vulnerable links by performing sensitivity analysis through partial derivative transformation for quantifiable parameters or perturbation transformation for unquantifiable parameters on an expression of the reliability indexes.

Method, software system, server and physical terminal of analytical calculation of power supply reliability indexes of complex power distribution networks with multi-connections

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Tianjin, China

Tianyu Zhang