Capacitor bank evaluation for power factor improvement of an industrial plant’s distribution network with non-linear load.

摘要

The paper focuses on the capacitor bank evaluation problem for power factor improvement of an industrial plant’s distribution network containing non-linear load. The problem is important due to large scale integration of power electronics into electrical supply systems of industrial plants including oil and gas enterprises.It is shown that the choice of the capacitor bank depends on the current harmonic spectrum consideration. The estimation of the equivalent circuit for the whole current harmonic spectrum and for the first current harmonic only has been carried out with the use of the classical ways of electric circuit analysis. The network parameters with the capacitor banks installed are provided for the comparison.The conclusion of necessity to take the whole current harmonic spectrum into account for the capacitor bank evaluation is drawn