Research on computing the access limit capacity of distributed photovoltaic system based on ant lion algorithm

With the increase of photovoltaic penetration rate year by year, the power quality and other problems of power grid become more and more obvious. Based on the safe operation of the power system, the scale and location of the distributed photovoltaic access distribution network should be reasonably planned. A mathematical model of distributed photovoltaic access limit capacity is established, the constraints are grid voltage fluctuation, transmission line capacity and current carrying capacity, and main transformer power switching, The goal is to maximize the distributed photovoltaic capacity of the distribution network. Ant lion algorithm is proposed to solve the problem of acceptance capacity of distributed photovoltaic, The example is validated by IEEE33 power system. The simulation results show that the method is scientific and feasible. It is suitable for the analysis of the maximum capacity of an access distribution network under the conditions of safe operation of the power network.