DC-DC Boost Converter with P&O MPPT Applied to a Stand-Alone Small Wind Turbine System

In recent years, the demand for energy has increased for many applications, including the great revolution in industry, technology and agriculture, including the increase in environmental pollution. Therefore, it has become necessary to change to alternative and sustainable energy sources as they become the health and environmental saver. DC stand-alone microgrid is a very popular solution suitable for domestic and residential uses. This research deals to design a model of 3KW small wind turbine system based on stand-alone DC microgrid. The system targeting to provide essential DC appliances in case the utility grid is off. The model design consists of permanent magnet synchronous generator, diode rectifier, step-up Boost converter, perturb and observe (P&O) controller. To extract the maximum power and control the boost converter's output voltage, an adjusted P&O maximum power point tracking (MPPT) algorithm is used to drive the switching element to accomplish fast MPPT and maintain the voltage constant irrespective of wind speed variation. To verify the designed system's effectiveness, a MATLAB/Simulink software was developed.