The Electricity Distribution of Alternating Current and Voltage Higher Harmonics Research in Network with Electrical Complex of Direct Current Drive

Abstract

Study of electricity consumption in the workshop of an industrial enterprise with a furnace drive electrical complex, the power part of which is made by a semiconductors rectifier - DC motor system. The study was conducted on a model compiled in a visual programming environment. Guided by the calculation formulas recommended by the IEEE 1459–2010 standard for determining of active and reactive power components, the corresponding measuring subsystem was introduced into the model. A number of experiments were carried out under the condition of control angle changing a semiconductors converter. The values of the fundamental and higher harmonics in active and reactive power are determined. It has been established that the reactive power of higher harmonics generated by a controlled semiconductors converter is transmitted through a step-down transformer without changes. The proposed procedure of separating the higher harmonics active and reactive power is rational to apply in the electric energy technical accounting systems an industrial enterprises.