Output Maximization by Modeling and Simulation of Hybrid Wind/Photovoltaic Standalone Generation

摘要

This paper illustrate the hybridsystem of both Wind energy system and Photovoltaic module, which is simulated in MATLAB/SIMULINK software. In which a SEPIC (DC/DC converter) converter is used to convert the varying DC voltage to a constant output voltage by using its control mechanism. MPPT is in charge for extracting the maximum possible output power from the photovoltaic and the wind energy system. In this paper Incremental conductance (InCond) method is used as the algorithm in our MPPT block. The simulated system proposed uses a three-level, three phases, twelve pulse inverter for converting DC voltage generated by the photovoltaic model and the wind energy system to AC voltage at desired frequency and voltage level. The usage of three-level inverter reduces Total Harmonic Distortion (THD) in output voltage. Solar PV system primarily powers DC and AC loads with battery storage option. Lead-acid batteries are used due to their large availability in many sizes, low cost and well firm performance characteristics. The importance of developing MPPT (Maximum Power Tracking) algorithms is demonstrated by analyzing the effect of shading on the PV system efficiency. The main concentration here is to develop a system to make use of the renewable energy source (i.e., Photovoltaic and Wind power) which is available in the vicinity to provide power to the isolated loads and increases the efficiency of the system by implementing MPPT technique.