Ensuring Effective Functioning of Compensating Device STATCOM in Metallurgical Enterprises

Ensuring efficient operation of electromechanical systems with frequency regulation with periodic voltage sags

“…STATCOM system connected to "restless" 35 kV busbar, which has alternating load (arc steel furnace DSP1), providing necessary quality of electricity [14][15]. As a result of modeling [1], diagram of power supply system shown in figure 1 in Simulink Matlab package is shown in figure 2. Graph of current load on electrode terminals of arc steel furnaces is shown in figure 3.…”

“…If we have a working block "Three-Phase Fault", the command to disable protected circuit will have given to "Three-Phase Breaker" element ( figure 6). In our case, shortcut circuit time starts from time t = 1.2 s, since load is modeled from previously developed model [1]. It is not difficult to notice that at time t = 1.2 s. there is a burst of amperage, accompanied by breakages of electric arcs.…”

“…This, in turn, allows avoiding complex transient response in electrical networks, for ensuring operation equipment in most economical mode. This is relevant for both conveyor engines and engines of furnace-bucket unit, which is characterized by a long and re-short-term mode of operation, respectively [1][2][3].…”

“…Taking into account above and based on findings [1], solution to problem of voltage dips on busbars of electric drive systems with frequency control is an effective compensation of reactive power on busbar of high-power electrical installations [11][12][13].…”

Improving the efficiency of reactive power compensation devices through neural analysis

“…Many world-class enterprises have sophisticated modern reactive power compensation devices with high performance. In the article [1], ways were given to increase the performance of these devices with the elimination of false positives through statistical analysis methods. In the article [2], analysis of frequency disturbances by means of wavelet decomposition and its application in the control system of static devices were additionally considered.…”