Computer Simulation For the Flicker Sources Searh In Electrical Networks

The article discusses the electricity quality issues in power supply systems and methods for determining the electrical energy quality violations in power supply systems, in particular, consumers which create rapid voltage changes. Electrical receivers with a sharply variable operating mode are fluctuations sources in the consumed current and voltage in the electrical network. It manifests in the unacceptable flicker values form, which defines as the subjective fluctuations perception in the luminous lighting devices flux. The authors propose a simplified method for finding flicker sources. This method is based on obtaining the currents derivatives values at various points in the electrical network. The authors have performed the computer simulation with electrical receivers, which have both calm and sharply variable work nature. In the electrical network at the various points the current derivatives values use makes it possible to identify the flicker unacceptable doses sources. The results show that it is possible to use the currents derivatives to determine the large voltage fluctuations places. The proposed method allows the fairly simple hardware use to identify disturbance sources in the electrical energy quality.