Dfig Wind power generation system

What is a wind power generating system (DFIG)?

Wind power-generating systems are one of the clean energy sources, with variable speed and constant frequency being the most widely utilized in DFIGs, which is made up of a wind turbine, a gearbox, an induction motor, and control modules.

Why do wind turbines use DFIG?

Because the power electronics only process the rotor power, typically less than 25% of the overall output power, the DFIG offers the advantages of speed control with reduced cost and power losses. This PLECS demo model demonstrates a grid-connected wind turbine system using all of PLECS' physical modeling domains.

What makes DFIGs unique in wind power systems?

The ability of these converters to control both active and reactive power makes DFIGs unique in wind power systems . DFIG-based systems also contribute to grid stability and voltage control, which is increasingly significant as wind energy integration progresses.

How does DFIG control wind energy?

However, wind energy poses challenges such as rapid fluctuations in frequency and voltage stability [9, 10]. DFIG-based systems incorporate advanced control strategies to maintain operation during grid fluctuations, such as Low Voltage Ride Through (LVRT), which helps avoid disconnection from the grid during voltage dips [11, 12].