Спосіб оптимального керування параметрами нормальних режимів електроенергетичних систем

Abstract

A method for optimal control of electric system normal modes includes measurement of voltages in electric system control nodes, measurements of currents in control sections of the system; shaping a signal proportional to economical loss caused by power flow deviations in the controlled sections of allowable power magnitude; measurement of frequency in the energetic system; determination of operation parameter sensitivity to change of node load; shaping a signal proportional to economical loss caused by frequency deviations from nominal value, summation of said signal and signal proportional to power flow deviations in the controlled sections; comparison of the obtained signal and signal proportional to permissible economical losses, being a control preset, and calculation of a lose factor, a commutated current remaining lifetime factor, comparison of the obtained signal and the signal proportional to permissible economical losses being a control preset, calculation of the lose factor, accumulated commutated current remaining lifetime factor, residual commutation current, switching quantity ratio, total ratio of high-voltage transformers remaining lifetime, weight coefficients, cost of overtime technical power losses, total cost; calculation of transformer operation efficiency.