Control Algorithm with MPPT of Stand Alone Wind- Solar Hybrid Energy Conversion System
Keywords:
MPPT, Solar energy conversion system, Wind energy conversion system, Boost Converter, SimulationAbstract
Solar and wind are the most popular resources due to its ease of availability and its ease conversion into
electricity. Each renewable resource require DC/DC boost converter with MPPT control for power generation. To
obtain high efficiency of photovoltaic (PV) system and wind energy system, the maximum power point tracking (MPPT)
technology is employed. Perturb and Observe MPPT technique is used for PV system in which dc voltage is used as
perturbation variable. While in wind energy system, perturbation variable as a dc current is used in modified perturb
and observe MPPT algorithm. Modified perturb and observe algorithm is stable and tracks fast for sudden wind speed
change conditions. Maximum Power Point Tracking (MPPT) technique used with boost converter extracts maximum
power from the source when it is available. Simulation of both the renewable energy sources is carried out separately in
PSIM 9.0 with different MPPT types of techniques.