The load flow calculation in harmonic polluted radial electric networks with distributed generation

Analyse of harmonic distortion in power systems consists in the determination of steady state quantities for each harmonic component at a time. The existing theoretical relationships are difficult to be implemented in complex systems containing many elements, in various combinations. In the case of radial power systems operated in sinusoidal conditions, the load flow calculation can be performed using a particular method known as the backward/forward sweep. For harmonic polluted radial electrical networks, we can consider the backward/forward sweep algorithm with some specific adaptations. In this paper, the authors propose to model the electrical harmonic complex quantities through abstract data types with complex parameters. To illustrate the proposed methodology, authors have developed original software that allows performing all necessary operations with electrical harmonic quantities.