Some Methods for Computing RMS Values and Phase Differences of Currents and Voltages
نویسنده
چکیده
The data primary processing in electro-energetic system is based on algorithms that perform the numerical filtration of input signals or the computation of some characteristic values (root-mean-square values and phase differences) of currents and voltages. This paper presents possible methods for computing these characteristic values: method of the average value, modified A4 method, method of the direct root-mean-square value, Fourier method. The main advantages and disadvantages of each method and experimental results obtained using the last method are also presented. Key-Words: method, periodical signal, root-mean-square value, phase difference, sample, computational load.
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