Measurement-based approach for identification of static load models of electric power systems

The accountability of static load models is needed to increase the validity of electric power system simulation or prediction models. Measurement-based approach is the unique method to identify them adequately. The measured power depends on both load reaction to supply voltage alteration and random processes of load alteration. Basically there is no universal method to single out the inherent static load model from experimental data. The paper offers the proprietary technique which is the particular solution of the task. The technique considers the selection of neighboring pairs of measurement references with the supply voltage altering significantly between them; the exclusion of selected pairs by power regulation coefficient of load and then subsequent selection of the inherent static load model presented as the polynomial load model. The application of the technique to identify static load model at “Sibkabel” industrial enterprise (Tomsk city) is presented in the paper. The ideas considered in the paper can be used for future development of static load model identification methods with the data obtained during both active experiment and in other operating modes of electric power systems.