ABOUT WIND ENERGY:
Wind energy is one of the renewable sources of energy. Wind energy is an important non-conventional source of energy. It does not contaminate, it is inexhaustible. Wind energy is one of the methods used to provide electricity. . Wind Energy and Wind Power Wind is an abundant resource on our planet. In wind energy, the wind is used to produce electricity using the kinetic energy created by air in the motion. This is then transformed into electrical energy using wind turbines or wind energy conversion systems. Air flows can be used to run turbines. Wind Power is also used for Pumping Water and Electricity. China is the world’s largest producer of wind energy, with over a third of the world’s capacity. It is currently booming and it has become one of the fastest-growing markets in the world today. Wind power is an alternative source to burning fossils, and it is plentiful, it is renewable, it is clean, it produces no greenhouse gas emissions during operation. Wind power is the most efficient technology to produce energy in a safe and environmentally sustainable manner. It currently accounts for more than 3% of the global electricity consumption and is expected to reach 18% in 2050 according to data from the International Energy Agency.
PARTS OF WIND TURBINE:
In wind energy, the electricity is mainly gained with the help of the wind turbine. The different parts of the wind turbine are,
Most wind turbines designed for the production of electricity have consisted of a two or three-bladed propeller rotating around a horizontal axis. A wind turbine turns wind energy into electricity using the aerodynamic force from the rotor blades, which work like an airplane wing or helicopter rotor blade. When wind flows across the blade, the air pressure on one side of the blade decreases.
The rotor is one of the parts of the wind turbine. The energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity.
Pitch control is the technology used to operate and control the angle of the blades in a wind turbine.
Mechanical wind turbine brakes have two main uses. They are applied as a backup method of holding the turbine in place for maintenance or repairs, in the case of a failure of the primary rotor lock system. Or in the case of emergencies, such as extreme gusts of the wind or too much speed.
- Low-speed shaft:
In most large-scale turbines, the low-speed shaft is connected to a gearbox.
A gearbox is typically used in a wind turbine to increase rotational speed from a low-speed rotor to a higher speed electrical generator.
Wind turbines generate electricity by using wind power to drive an electrical generator.
The wind farm controller’s function is “power management”. It can initiate and shut down the turbine operation as well as co-ordinate the operation of numerous wind turbines in response to environmental and operating conditions. The wind turbine supervisory controller manages the individual turbine operation.
The anemometer measures wind speed. The wind turbine is only supposed to operate when the wind speed is within a certain range. The anemometer determines when the wind is within the defined range.
- Wind Vane:
The wind vane, used for indicating wind direction, is one of the oldest meteorological instruments.
The nacelle is the part of the turbine that houses the components that transform the wind’s kinetic energy into mechanical energy to turn a generator that produces electricity.
- High-speed shaft:
The high-speed shaft drives the generator which produces AC electrical current. Power cables transport electricity to the ground level.
- Yaw drive:
The yaw drive is an important component of the horizontal axis wind turbines’ yaw system which is used to ensure the wind turbine is producing the maximal amount of electric energy at all times, the yaw drive is used to keep the rotor facing into the wind as the wind direction changes.
- Yaw motor:
When wind direction changes, a turbine’s controls instruct its yaw motors to reposition the nacelle.
The tower of the wind turbine carries the nacelle and the rotor.
ADVANTAGES OF WIND ENERGY:
- An unlimited, free, and renewable resource is the wind.
- Wind energy does not emit toxic substances or contaminants.
- It is low-cost energy with a fairly stable price
- Wind power will require nations to need less and less fuel sources to be imported as our energy will be fully sustained.
- Wind power has some of the lowest environmental impacts of any source of electricity generation.
- Wind energy is one of the most environmentally friendly energy sources.
- Wind energy could generate a significant proportion of your electricity needs.
- Wind turbines can also be installed at different heights to achieve stable energy production.