Reactive compensation of non-active power in hybrid shunt filter of three-phase four-wire system at random load

New method for determination of parameters of the reactive compensator elements with a delta connection has been proposed that allows to calculate them regardless of the calculation of compensator elements with a star connection. The method is intended for calculation of the reactive compensator parameters of the hybrid shunt filter for discrete linear model of load that randomly varies. As an example of random switching of single-phase load the use of the results to reduce the installed power of the active part of the shunt hybrid filter of the three-phase four-wire power system has been demonstrated.