The fault diagnosis problem of active network is studied in this paper with the emphasis upon its solvability and diagnosability.

摘要本文有源网络的故障诊问题，著重其可解与可诊。

The diagnosis principle and diagnosability conditions are proposed, and the normal tolerance network test nede voltage interval are given by interval iterative algorithm.

该方法给出了容差情况下诊的原理和可诊件，并利用区间迭代算法，给出了容差网络无故障情况下的测试节点电压范围。