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When designing electrical systems and systems with power electronics devices exceptionally great attention is paid to assessing the quality of electricity, the efficiency of its consumption and use. In many works in this direction of research conducted in MatLab using blocks and modules of the electrical section SimPowerSystems, which places without measuring modules of indicators characterizing the quality of current and voltage. Also there are no calculators for power factors and efficiency. To eliminate this gap, the authors developed modules for computing quality and efficiency of consumption and energy use in MatLab. There are specialized calculators of efficiency and power factor. They were developed as measuring modules for assessment of current distortion, non-sinusoidal voltage sensors and active, reactive and apparent power, deviations and voltage fluctuations. The methods of determining and principles of measurement as well as the deployed schemes of modules and the results of numerical experimentation in electrical circuits and the measuring accuracy are evaluated. All the computing modules are combined into a common information-measuring system, which controls all power indicators when performing numerical experiments in research.


Block-modular mathematical models, measuring modules, total power and its active and reactive components, power and efficiency factors, current distortion and non-sinusoidal voltage coefficients.

Stepan V. Klimash

Postgraduate student, Far Eastern State Transport University (FESTU), Komsomolsk-on-Amur, Russia.

Vladimir S. Klimash

Professor, Komsomolsk-on-Amur State Technical University (KnASTU), Komsomolsk-on-Amur, Russia.

Stanislav V. Vlasayevsky

Professor, Far Eastern State Transport University (FESTU), Khabarovsk, Russia.

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