Calculation of Distributed Photovoltaic Hosting Capacity in Distribution Network

If the scale of distributed photovoltaic exceeds the hosting capacity of the distribution network, the safe and stable operation of the distribution network will be seriously affected. To solve this problem, DIgSILENT/PowerFactory is used to calculate the hosting capacity of distributed photovoltaic in the distribution network. Firstly, a simulation model of low-voltage distribution network was established, and the influence mechanism and simulation analysis were used to explain the influence of distributed photovoltaic capacity and location on voltage, current, losses and harmonics. On this basis, the corresponding constraint conditions are constructed, and the hosting capacity of distributed photovoltaic in the distribution network is calculated to obtain the photovoltaic hosting capacity of each nodes, as well as the limiting factors and limiting elements.