Предложен метод корреляции колебаний мощности и напряжения, который позволяет определять место расположения источника колебаний напряжения в системе электроснабжения.
Запропоновано метод кореляції коливань потужності і напруги, який дозволяє визначати місце розташування джерела коливань напруги в системі електропостачання.
Purpose. The purpose of work is development of a method of
definition of the location of a source of fluctuations of voltage.
Methodology. The reasons of emergence of fluctuations of voltage
at an arrangement of a source both in power lines, and in the
consumer's networks, are connected with changes of consumption
and active and reactive capacities. As criterion for definition of
the location of a source of fluctuations of voltage we choose
change of size of the active power received by reception substation on equivalent communication with system. The source of
fluctuations of voltage is external for the consumer if emergence
of fluctuations of voltage leads to the coordinated changes of
tension and consumed in the area of active power that corresponds to a condition of the positive regulating effect of active
loading on voltage (1). The source of fluctuations of voltage is
internal for the consumer if emergence of fluctuations of voltage
leads to counter changes of tension and consumed in the area of
active power that resembles a condition of the negative regulating
effect of active loading on voltage superficially (6). Results. The
method of definition of the location of a source of fluctuations of
voltage in an electric network which, works by the principle of an
assessment of correlation of change of power and tension in a
power supply network is developed. The method allows to consider shift between extrema of curves of change of voltage of U(t)
and power of Pload(t). Originality. The method of definition of an
arrangement of a source of fluctuations of voltage is developed.
Practical value. The answer to this question where the source of
fluctuations of voltage (in the territory of the consumer is located
or in an external network) confirmed with the determined calculation, can form a basis of the expert opinion for the solution of
legal disputes at an assessment of the damages caused by poor
quality of electric energy.
