METHOD FOR IDENTIFICATION OF TYPE DISTORTION SIGNAL HARMONIC DISTORTION PARAMETERS AND DEFINITIONS (optional)

摘要

1. A method for identifying the type of the harmonic distortion signal and determining the distortion parameters, namely the determination value X DC component in the electrical signals in the currents and voltages for each phase and the neutral conductor, comprising the steps that constantly N paz during period T and at each current time point tfiksiruyut current electrical signal value x (t) and calculating the sum R = x (t) + x (t) with the value of the same electrical signal, which has been half-period N / 2 reverse at time t, is then carried out tech comparison present sum value Rso value R sum, i.e. so that it was in the previous measurement of the electrical x () signal at time t, equation for a predetermined interval, for example a quarter period values ​​of these amounts, i.e. the absolute value of their difference | RR | ≤b not exceed b, where b - determining the level specified accuracy of the constant component, a condition for the presence Hsostavlyayuschey constant whose value is computed according to the formula x = (x (t) + x (t)) / 2, where x (t) - current value an electrical signal at time tx (t) - value of this f of the electric signal, which has been half-period N / 2 ago.2. A method for identifying the type of the harmonic distortion signal and determining the distortion parameters, namely the definition of A - initial value and τ - time constant of attenuation of the aperiodic component, and determining the value X constant component in the electrical signals, i.e. currents and voltages for each phase and zero wire, comprising the steps that continuously N times during the period T and at each current time value of electric current tfiksiruyut