Study on Harmonic Identification and Mitigation Using APF in Distribution System Consisting of Single Non Linear Load

This work provides a unique method for compensating source side current harmonics caused by the presence of nonlinear characteristic loads in power systems using an Active power filter (APF). This is quite often because optimising the capability system networks utilising traditional mathematical modelling based mostly linearized approaches is difficult due to the advanced, nonlinear, and non-stationary nature of systems that involve a large number of different constraints.   To avoid the complexity of conventional concepts, this paper proposes the application of Total Harmonic Power (THP) to two complete cases with and without APF, i.e. identifying the harmonics and reducing their effect with APF to lower the supply current Total harmonic distortion (THD) sufficiently below fifth order to satisfy the IEEE-519 standard even under distorted offer. For scenarios with and without APF management methods using THP control techniques, intensive MATLAB simulations and comparative analysis were used.  The new modification was applied to several case studies and proved to be successful. Moreover, to eliminate the possible errors associated with measuring the harmonic powers due to calculating the phase shifts between harmonics.