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电网技术  2009 

工频通信信号在我国配电网中的传输特性

, PP. 203-209

Keywords: 工频通信,配电网,配电变压器

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Abstract:

针对我国配电网与美国配电网接地方式的不同,分析了配电变压器对工频信号传输过程的影响,指出我国中压配电网中性点不接地方式对工频通信信号有明显的衰减作用,并与配电变压器的连接组别相关。最后对不同的信号衰减情况提出了改进通信效果的建议,包括增大信号调制幅度,改进信号检测技术,对Yyn-0型配电变压器通过减少装置内部电感来解决上行信号调制幅度不足的问题等。

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