Distribution network hosting capacity assessment: Incorporating probabilistic harmonic distortion limits using chance constrained optimal power flow

The capacity of renewable distributed generation (DG) connected in distribution networks is increasing. Use power electronic interfaces means DG can inject harmonic currents through the point common coupling into upstream networks. limits stipulated emission standards may create challenges for accommodating DG. To explore impact regulations on ability to host DG, this work incorporates voltage constraints a network hosting assessment. A novel assessment approach presented, incorporating percentile-based compliance levels as chance over multiple periods AC optimal flow. case study shows that could be evidently lower under rigorous with distortion limits, but relaxation risk has significant value. Furthermore, complex inter-connectivity between sites voltage, thermal and all influence locational feasibility capacity.