Digital Quantity Output Synchronization Method of Electronic Transformer Based on Digital Communication Technology
There is a big error between the differential waveform of the existing synchronization method and the original sine wave waveform,so the digital output synchronization method of electronic transformer based on digital communication technology is studied.In order to cope with the influence of environmental factors,the resistance values before and after temperature change are calculated,and the problem of phase difference is found.Extract the running state data of electronic current transformer and preprocess the data.Accord to that input signal of the synchronous circuit,two square wave digital signals are set,and the rise edge and falling edge of these signals are the same as the two digital signals.Frequency control is added in the process of synchronous control to stabilize the frequency of electronic transformer at a relatively balanced level.The test results show that the reconstructed sine wave is the same as the original sine wave,and the maximum synchronization errors of the experimental group are all below 20 s,which can achieve better error suppression.
digital communication technologyelectronic transformerdigital quantityoutput synchronization
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