摘要
由于传统方法在实际应用中对于光伏电站直流单导线载波通信信号提取得不够全面,提取率较低,为此提出光伏电站直流单导线载波通信信号提取方法。使用GUHN-2554无线传感器读取到载波机上原始通信信号;通过对原始通信信号进行经验模态分解,得到不同时间尺度下的特征参数;再根据特征参数,通过独立分量分析计算出逼近特征参数值的通信信号,将其从混淆信号中分离出来,从而完成了光伏电站直流单导线载波通信信号提取。经实验证明,应用此次设计方法可以基本全面提取到载波通信信号,提取率远高于传统方法,更适用于光伏电站直流单导线载波通信信号提取。
Because the traditional method is not comprehensive enough to extract the DC single conductor carrier communication signal of photovoltaic power station in practical application,and the extraction rate is low,a DC single conductor carrier communication signal extraction method of photovoltaic power station is proposed.Read the original communication signal on the carrier using guhn-2554 wireless sensor;The characteristic parameters at different time scales are obtained by empirical mode decomposition of the original communication signal;Then,according to the characteristic parameters,the communication signal approaching the characteristic parameter value is calculated through independent component analysis,which is separated from the confused signal,so as to complete the extraction of DC single conductor carrier communication signal of photovoltaic power station.Experiments show that the carrier communication signal can be extracted basically and comprehensively by using this design method,and the extraction rate is much higher than the traditional method,which is more suitable for DC single conductor carrier communication signal extraction of photovoltaic power station.
作者
陈茂洲
Chen Maozhou(Department of mechanical and electrical engineering,Datong Vocational and Technical College of Coal,Datong Shanxi,037001)
出处
《电子测试》
2022年第8期45-46,49,共3页
Electronic Test
关键词
光伏电站
直流单导线
载波通信信号
经验模态分解
独立分量分析
photovoltaic power station
DC single conductor
Carrier communication signal
Empirical mode decomposition
Independent component analysis
