| 摘要 |
A method for electric system operation mode regulation comprises measurement of frequency, voltage in electric network control points, measurement of currents in the control cross sections of the system; determination of sensitivity of the system operation parameters relatively to nodal power deviation; shaping a signal of the electric network structure changing, which is proportional to economical losses caused by over-frequencies of control currents. For each transformer with an under-voltage regulator (UVR) remaining lifetime coefficients are determined according to parameters “total number of UVR switching”, “electric motor current” of UVR drive in the set mode, “temperature difference of UVR contactors bodies”, UVR total lifetime coefficient, coefficient of influence of mode parameters to total system power losses, coefficient of quality operation for each transformer. A transformer required for correcting influences is determined. A signal for influence to UVR is shaped, which is proportional to deviation of total power losses relatively to optimal values thereof in the electric system; the quality coefficient of transformer operation for current mode is taken into account. |
