Increasing PV hosting capacity in LV grids with a probabilistic planning approach

Enabling a high hosting capacity of PV infeed in LV grids can be a great challenge for distribution system operators. To assure 100% PV infeed at any time the maximal PV infeed with the minimal load situation is used in conventional network planning. When looking at real grid situations, this worst case scenario only occurs rarely. This paper describes a probabilistic planning approach that increases the hosting capacity of PV while an active power curtailment, realized with PV inverter's P(U) control, is accepted for short time periods. As a consequence, this probabilistic planning approach improves the assessment of the available network capacity for PV.