Design and analysis of power management model for hybrid generation systems

Abstract

Global warming and gradual consumption of conventional sources have led to significant research in the area of green sources like Solar and wind. The solar and wind supplying system are suitable only to feed local loads. The drawback of using such system is their dependency on weather conditions. Still, there is upsurge in usage of non-conventional resources in the existing power system. However, it poses to high technical challenges when used alone without conventional power systems and improper energy storage systems. In this research, energy supply system has been proposed to match energy demand by taking some operational constraints by the integration of abundant energy source with conventional source that is Hybrid power systems (HPS) . First module of the research work is to study the integration of the different renewable sources with non-sustainable power plant tied to grids. After developing the models, it has been observed that proposed HPS is based on photovoltaic cell which has been further examined to improve the performance of the system with artificial intelligent control techniques. In the second module of the work emphasis is on the study and implementation of PV system using mathematical equations in MATLAB. The performance characteristics of the PV System is also examined by varying weather conditions. The model is also analyzed for series and parallel resistance control to get accurate I-V waveforms. The third phase of the investigation includes the study of different MPPT techniques and applying two MPPT methods Perturbation and Observation (PandO) and Incremental Conductance to reduce power oscillations and early convergence. Comparison of both methods had also been done for required output of PV module in MATLAB. PV panels have scalable nature which insist power inverters in grid tied systems to work on high frequencies DC-DC converters. Therefore, to reduce distortions and for obtaining appropriate PWM Waveforms high power capacity inverters are coupled with DC-DC converters. The Simulation res