Power_Generation_by_Windmill in short.pptx

Power_Generation_by_Windmill

1. Power Generation by Windmill Explained with Block Diagram and Component Functions

2. Objective To study and understand how electrical power is generated using wind energy through a windmill (wind turbine) system.

3. Theory Wind energy converts the kinetic energy of moving air into mechanical energy through the rotor, which is then converted into electrical energy using a generator. When wind blows across turbine blades, it produces lift and drag forces that rotate the rotor. This mechanical rotation is transmitted through a shaft and gearbox to drive a generator, producing electricity which is regulated and supplied to the grid or batteries.

4. Block Diagram of Windmill Power Generation System Wind Energy → Rotor Blades → Gearbox → Generator → Power Conditioner / Inverter → Battery / Grid

5. Main Components and Their Functions (1/2) 1. Rotor Blades – Capture wind energy and convert it into mechanical energy. 2. Hub – Connects blades to the shaft and transmits motion. 3. Main Shaft – Transfers mechanical power to the gearbox or generator. 4. Gearbox – Increases rotation speed suitable for the generator. 5. Generator – Converts mechanical energy into electrical energy.

6. Main Components and Their Functions (2/2) 6. Controller – Monitors turbine speed and protects the system. 7. Yaw Mechanism – Rotates turbine to face wind direction. 8. Brake System – Stops turbine during high wind or maintenance. 9. Power Conditioner – Converts generated electricity into stable AC/DC. 10. Battery/Grid – Stores or supplies generated power. 11. Tower – Supports turbine at optimal height for wind capture.

7. Working Principle 1. Wind strikes blades causing them to rotate. 2. Mechanical rotation turns hub and main shaft. 3. Gearbox increases rotational speed. 4. Generator converts mechanical energy into electricity. 5. Power conditioner stabilizes output. 6. Power is stored or supplied to grid.

8. Advantages - Renewable and eco-friendly - No fuel cost - Low operating cost - Reduces carbon footprint

9. Disadvantages - Dependent on wind availability - Noise and aesthetic concerns - High installation cost

10. Applications - Rural and remote area electrification - Wind farms for grid power - Water pumping and small-scale energy supply