Research of maximum capacity of grid-connected photovoltaic power station based on the “box” set robust optimization

For the random fluctuating and intermittent nature of photovoltaic (PV) power generation, an optimization model with robust optimization theory, which maximizes PV power station, is proposed. The uncertainty of the solar irradiance is expressed by cassette uncertainty set in which the solar irradiance as a random variable. The optimizing dual theory simplifies the model into linear programming model and the uncertainty quantity of the constraint conditions is converted into the form of certainty quantity, so that it is easy to solve. To validate the effectiveness and feasibility of the proposed model, by use of Matlab toolbox the optimal solution and simulation of IEEE 30-bus system are carried out. The calculation show that maximum capacity of PV power station is impacted significantly by different solar radiation intensity and different nodes connected to grid.