Part of the wind power is connected to the grid

How does a wind turbine get to the grid?

Understanding how electricity made from a wind turbine gets to the grid requires knowing the function of an inverter in such a setup first. The generator associated with a wind turbine produces direct current (DC). It’s necessary to convert the power to alternating current (AC) before it powers a home or gets sent to the grid.

How does a grid connected system work?

A grid-connected system — also called an on-grid system — has several parts that work together to send power to homes and businesses. The turbine takes the wind’s kinetic energy and converts it to electricity. It also has some essential parts — a rotor, generator and gearbox — protected inside an enclosure called a nacelle.

How did wind energy affect grid integration?

In the early 2000s, utilities shifted their concerns from wind energy costs to wind power's variability and whether its corresponding uncertainty would increase system operating costs. This concern led to one of the first grid integration studies, which UWIG conducted from 2001 through 2003.

How to couple a wind turbine to the power grid?

In literature, 3 methods were mentioned to couple a wind turbine to the power grid: direct coupling, indirect coupling, and hybrid coupling , , . The causes of technical obstacles associated with the integration of wind energy are reviewed in the following points.

How does a wind turbine convert kinetic energy into electrical energy?

Wind turbine (WT) has blades connected to the mechanical shaft through gearbox and rotor hub. It converts kinetic energy of the wind into mechanical energy of the shaft. The shaft drives the generator to convert the mechanical energy into electrical energy . The energy contained by the wind depends on the wind velocity (v) and air density (ρ).

Why do wind turbines have three sections?

Towers usually come in three sections and are assembled on-site. Because wind speed increases with height, taller towers enable turbines to capture more energy and generate more electricity. Winds at elevations of 30 meters (roughly 100 feet) or higher are also less turbulent. Determines the design of the turbine.