ON THE DEFINITION OF ELECTRIC POWER AVERAGING

Abstract

The paper examines the approaches to the control of average electric power. It is shown that the existing tools that determine the average power at set time intervals, not always fix possible excess of a certain value setpoints. Proposed practical implementation of this approach. It is shown that to monitor all exceedances with a given confidence probability, power control should be performed with a sampling rate smaller and multiple averaging interval. The practical implementation of the approach is proposed. A block diagram of the device for monitoring the averaged power by the moving average method is given. The device includes an information receiving unit, a reverse binary counter, a shift register, a computing device, registers of controlled parameters, a task unit, a comparison unit and an indicating and recording unit. The signal from the information receiving unit is fed to the input of the reverse counter. Signals with the sign "own" needs are summed up, and signals with the sign "third-party" needs are subtracted. After a certain step of sampling, the information is shifted, and the information stored in the last rows is erased. Thus, there is a sequential shift of information with a sampling step that reflects the progress of the power consumption process over the monitoring interval. Results of experimental tests at a coal mine are given.