The principles of using signal injection method to detect single-phase earth fault of distribution network at present are compared and analyzed.

对目前配网采用信号注入法检测单相接地故障的原理进行比较分析。

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This paper presented a neural network based technique to obtain fundamental waveform from a single phase half bridge inverter by square wave mode.

以方波模式运行的单相半桥逆变器为研究对象，提出了一种利用神经网络提取逆变器方波输出电压基波成份的新方法。

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Single-phase compressible fluid network model for the objects was established in the paper.

本文对这类部件建立了单相可压缩流体网络模型。

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