Modeling and Simulation of Wind Energy Conversion System Interconnected with Radial Distribution System

The global electrical energy consumption is steadily rising and consequently there is a demand to increase the power generation capacity. A significant percentage of the required capacity increase can be based on renewable energy sources.The integration of Distributed Generations into grid has a great importance in improving system reliability. The power generation with renewable energy sources is essential in now-a-days to control the atmospheric pollution and global warming. To get fast tracking for maximum power, it is preferable to use incremental conductance method. MPPT control for variable speed wind turbine is driven by Induction Generator. The wind turbine generator is operated such that the rotor speed varies according to wind speed to adjust the duty cycle of power inverter and maximizes wind energy conversion system efficiency. The system includes the wind turbine, induction generator, three phase rectifier, DC link voltage controller, three phase inverter. In this paper, modeling and simulation of wind energy conversion system (WECS) with incremental conductance maximum power point tracking (MPPT) is presented. This WECS is connected to electric utility to measure the performance. In this paper, the objective such as optimal location and sizing of DG units are studied to check the system performance in reducing the power losses, increase in voltage profile and reliability. For analyzing the performance of WECS, a case study is carried out on IEEE 15 bus radial distribution system. The case studies shows that there is gradual improvement in voltage profile, reduction in power losses and variation in reliability indices and results were simulated in the MATLAB/SIMULINK. The results shown in this paper can contribute well to electrical utilities with radial distribution systems.