A judgment method for distribution network line-broken fault based on node balance information entropy

To solve the problem of distribution network line-broken fault, a judgment method for distribution network line-broken fault based on node balance information entropy is proposed. Firstly, a feeder node relationship information matrix model was established to describe the topological connection relationships and node types of each node in the distribution network feeder. Then, the node balance information entropy was established to describe the voltage imbalance situation of each node. Secondly, the feeder node balance information entropy relationship matrix is generated through the feeder node relationship information matrix and node balance information entropy. Finally, the line-broken fault area was located through the feeder node balance information entropy judgment matrix. Through example analysis, it is shown that this method can locate line-broken faults in the distribution network based on existing terminal collection information. The method is simple and reliable, can meet the needs of on-site applications, and has good promotion value.