Special aspects of application of filter-compensating devices in power supply systems with non-linear electrical receivers

Abstract

Abstract This article presents special aspects of selection and application of filter-compensating devices (FCD), made on the basis of passive filters (PF), in power supply systems for various purposes with non-linear electrical receivers (ER). We show the features of various power supply systems with typical consumers of electrical energy. As an example, we consider power supply systems of 0.4 kV for detached houses and of 6-10 kV for industrial enterprises with high-power thyristor DC drives. We describe features of generating higher harmonics (HH) of current and voltage in the considered electrical networks, their harmonic composition and the main negative consequences. We consider main technical means of compensating HH of currents and voltages in power supply systems with nonlinear ER, and analysis of various PF types. The influence of frequency properties on HH compensation is presented as one of the main features of PF application in FCD. Special aspects of selection of PF specific types and its parameters are described on the basis of solving optimization problems. The main methods of FCD design optimization are considered. Based on FCD structure optimization, we proposed their most rational designs for various power supply systems, as well as the results of their application.