Considerations on hosting capacity for harmonic distortions on transmission and distribution systems

• The maximum amount of DG that can be supported by the network is the focus of the present work.
• This amount of DG is called hosting capacity.
• It can be calculated as function of some quality indexes like overvoltage, harmonic and unbalance.
• This work proposes a procedure for hosting capacity assessment regarding harmonic distortions.
• This procedure is evaluated in the paper by means of a simple case study application.

The increasing penetration of renewable/distributed sources with non-linear characteristics demands a clear methodology for determining the amount of generation which can be connected to the system without deteriorating the performance (the hosting capacity). This paper proposes a methodology for determining the hosting capacity regarding harmonic distortions. The method includes aggregation effects of harmonic currents, the influence of harmonic distortion limits and harmonic generation profile. To exemplify an application of the proposed procedure, a simple case study is performed and analyzed.