Optimized control of a multi-source hybrid standalone microgrid for reliable power delivery

The paper presents a multi-source hybrid standalone microgrid model incorporating wind, photovoltaic, and diesel generator components. It is designed to achieve continuous quality power with multiple intermittent energy renewable energy sources under varying weather and load conditions. The scheme uses an advanced variable-size perturb-and-observe method to enhance wind turbine performance, eliminating the need for wind speed sensors. Simultaneously, it aims to minimize oscillations near the maximum power point for photovoltaic arrays for stable operation. The distributed generation system is employed solely as a backup energy source for this microgrid system. The synchronization control of a diesel generator at the point of common coupling is achieved using in-phase and quadrature unit templates. Additionally, an economical LC filter is employed to reduce harmonics at the output.