Detection method of harmonic energy
A detection method and harmonic technology, which is applied in the field of detection of harmonic electric energy, can solve problems such as ignoring harmonic electric energy research, and achieve the effect of guaranteeing operating costs, large economy and practicality, and improving efficiency
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[0042] The present invention will be further described below with reference to the accompanying drawings.
[0043] The present invention collects the total harmonic distortion rate of voltage, the content rate of each harmonic voltage and the allowable value of each harmonic current, obtains harmonic waveforms and harmonic power, and mainly obtains the 1-64th order of harmonic electricity by calculation And harmonic power and. The specific steps for calculating the 1-64th order of harmonic power to obtain the sum of harmonic power are as follows:
[0044] A. Filter the samples obtained at the sampling point; among them, the sampling point generally refers to the vicinity of the electric energy meter; sampling refers to the total harmonic distortion rate of voltage, the content rate of each harmonic voltage and the allowable value of each harmonic current;
[0045] B, perform FFT operation on the filtered samples; FFT refers to fast Fourier transform;
[0046] C, performing e...
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