FIELD: electric power industry.
SUBSTANCE: invention relates to the electric power industry. According to the method, when recording unacceptable deviations in electricity quality indicators by power district quality control devices, sequential analysis blocks are put into operation. From the outputs of the operational information complex of the energy district, information about the current frequency values and clock pulses are fed to the inputs of the sequential analysis units, and from the output of the storage unit of the simulation results of the operating modes of the energy district, information about the upper and lower set values is provided. Based on the clock pulses, control signals are generated for each of the processing channels of sequential analysis blocks, and in each of the channels, information processing is carried out in parallel with a shift of one information count. In each of the sequential analysis blocks, the likelihood ratio values corresponding to the current frequency, as well as the upper and lower set values are formed at the outputs. When the group products of the likelihood ratio deviate beyond the upper and lower setpoint values, control signals are generated that are fed to the input of the operational information complex, where a set of commands is formed to turn off the load, which is implemented through emergency automation terminals by disconnecting electricity consumers connected to the nodes of the energy district.
EFFECT: reduction in the volume of interruptible load with significant deviations in the power quality from the normalized values.
1 cl, 4 dwg
