FIELD: electrical engineering.
SUBSTANCE: invention relates to data processing systems and can be used in aerial power line operational control and diagnostics the method of determination of aerial power line primary and secondary parameters for constructing its reverse L-like adaptive model consists in measurement of the voltage and current signal instantaneous magnitudes. The resulted voltage and current instantaneous magnitude sample arrays at the said line input 
and output and 
obtained at the same time intervals tj=t1, t2, ..., tN with sampling increment 
where T is the voltage/current signal period, N is the number of samples over the period T, are transmitted, via the communication line, to the aerial power line input. Now, the method includes the following stages, i.e. first, the voltage and current digital sample pairs from the aforesaid measured arrays are memorised as current ones and the difference in the aforesaid current pairs is determined. Second, the loss of active power on the aerial power line lengthwise branch resistance is determined along with determination of a true signal magnitude in the said branch and reactive power loss on the said branch reactance. Third, the aerial power line lengthwise branch resistance and reactance are determined. Fourth, the loss of active power on the aerial power line transverse branch resistance is determined along with the true current signal magnitude ion the said branch and the reactive power loss on reactance. Fifth, the aerial power line transverse branch resistance and reactance are determined. Now, simultaneously, the current and voltage damping factors are determined along with the current and voltage phase-shift factors. Finally, the lengthwise and transverse branch resistance and reactance are determined per unit length of the power line lengthwise and transverse branches, along with the aforesaid damping and phase-shift factors accepted to be final results.
EFFECT: simplification, higher accuracy.
6 dwg, 3 tbl
