Requirements and Main Indicators for the Quality of Electrical Energy

Abstract

From the calculated results, it can be seen that the to different levels in different facilities differs to a certain extent. In this case, these differences are smaller for the 10-second period and larger for the 60-second period. In addition, the shape of the histogram and the character of the parameters of the deviation are the same for all facilities. In the case of a time period of 10 seconds, the value of the mathematical deviation differs from each other by ±0.5%, and in the period of 60 seconds, ±0.7%. However, the differences of the standard deviations do not exceed ±0.1%. Thus, when using the information obtained by the statistical analyzer of the quality of deviation, it is necessary to draw all the characteristics obtained by means of this facility: the shape of the histogram, the probability of falling into different levels, the average value and the standard deviation. As a lawyer, the most stable information about the road network is standard. Taking this into account, this quantity should be used when determining the quality of the change. The following main results were obtained: The quality indicators of electric energy are determined by the distribution of voltage, waves, the symmetrical characteristic of the three-phase periodicity and the non-sinusoidal characteristic of the voltage. The proposed control system allows real-time monitoring of energy quality.