Wind Energy Conversion System (WECS) In earlier times, wind mills were used to lift water for land drainage and to grind grains. But now a days, all over the world the focus is to produce electrical power by using wind energy conversion devices. These are also called as wind turbines (WT) or wind turbine generators … Read more

Design Considerations in Blade Design The blades of a wind turbine are designed based on the forces caused by the rate of change of momentum theory, such blades are not efficient on account of boundary layer separation from blade surfaces. It causes the loss of pressure due to formation of eddies with distortion of flow. … Read more

Wind Diesel or Wind Gas Turbine Hybrid System In remote areas where wind conditions are favourable for generation and there’s non-availability of pied, the hybrid system for small and medium power systems with diesel engine, generators or gas turbine generators can be installed. The wind turbine generator and diesel generator can be connected in parallel. … Read more

Standalone System with AC and DC Loads This system can be used to power AC as well DC loads shown by an schematic diagram in Figure A. Such a system needs an inverter also to convert DC power in AC power.

Wind Energy Conversion System for Battery Charging/DC Loads (Grid Independent System) Such a system is shown in Figure. In this system the wind energy is converted to DC power by a DC generator and charges the batteries. Power is supplied to DC loads or by the batteries. The charge controller is used for controlling the … Read more

Grid Connected Wind Energy Conversion System A wind energy conversion system converts the wind energy into some form of electrical energy. Such a system is shown in Figure A. The wind turbine converts the wind energy into mechanical energy. This energy is supplied to electrical generator through fixed stepped up gears and coupling according to … Read more

Present Status of Wind Energy In India Carbon di-oxide (CO2) being the main culprit for global climate changes, the world is focussing on development and installation of wind energy farms. It is estimated that global wind power capacity is 74 GW and India has 20000 MW out of the gross capacity of 45000 MW. A … Read more

Methods of Overcoming Fluctuations of Power Wind turbines are designed to yield maximum output at a wind speed of 15 m/s. If the wind speed is more, the excess energy is wasted. But the rotor is to be protected from damage. This is done by power control mechanism. The important methods used in power control … Read more

Site Selection of Wind Power Plant Winds are caused by heating of atmosphere due to solar heating. There are two types of wind viz. planetary winds and local winds. It has been also observed that the total wind power from free wind stream increases as the cube of the wind Therefore suitable studies are carried … Read more