Power System Small Signal Stability Analysis for Solar Photovoltaic Power Generation

Abstract

Government incentives (such as Feed-In Tariffs introduced) created a strong economic impact on individuals to invest in renewable energy sources for power production. Renewable energy sources are trending for power production, because of their relative small size and noiseless operation. Photovoltaic are particularly attractive as a renewable source of energy for distributed power generation. However, there are various concerns associated with photovoltaic modules, such as the impact of their interconnection to the grid because of their generic nature. Solar photovoltaic panels suffer from non-linear behaviour of output. The output of solar PV depends upon the weather conditions, which are not constant. The intermittent nature of weather causes the output to keep on changing. Such intermittent power will have the adverse effect on the power system stability. It is necessary to analyze the solar PV integrated power system stability (small signals stability, transient stability etc.). The proposed work focuses on developing the 3 phase grid connected solar PV system in PSCAD/EMTDC simulation software environment. The system is examined for integration of developed solar PV system. For the proposed work, based upon the simulation result the behaviour of system is examined for various perturbations.