Line loss calculation model of low-voltage distribution network under harmonic and three-phase unbalance disturbances and its experimental validation

Abstract With the grid integration of distributed power sources and traction loads, quality problem system has become more serious, aggravating distribution network line losses, so it is important to study calculation model loss under disturbance in order find reduction measures. This paper first theoretically derives low-voltage separate 2 common problems, namely, harmonics three-phase unbalance. Then, using composite decoupling method, unbalance derived, which improves accuracy calculations. Finally, experiments are conducted for each part by Matlab/Simulink simulation tool verify correctness theoretical derivation.