Dnf power generation wind 12

Do DFIG wind turbines affect power system dynamics?

Recently, the variable-speed wind turbine with doubly fed induction generator (DFIG) has drawn significant attention because of its many advantages such as small power converter rating, the ability to control the output power, etc. Nevertheless, the large penetration of DFIG wind turbines may affect the power system dynamics.

How does a 12 MW wind farm work?

A 12 MW wind farm consisting of eight 1.5 MW wind turbines connected to a 25 kV distribution system exports power to a 120 kV grid through a 30 km, 25 kV feeder. The wind speed is maintained constant at 15 m/s. 2.1. Mechanical System Model The system mechanic contains the drive train and aerodynamic rotor.

What types of generators are used in wind power fields?

Essentially, there are several types of generators used in the wind power fields such as the squirrel-cage induction generator (SCIG), doubly fed induction generator (DFIG) and a direct-drive synchronous generator (DDSG) [7, 8, 9]. However, the doubly fed induction generator (DFIG) is the most frequently chosen.

Does a DFIG wind turbine have a long-term voltage stability?

In Ref. 50, the effect of a DFIG wind turbine's operational limits such as rotor current limit, stator current limit, prime mover limit, and reactive power limit, on the long-term voltage stability was investigated by time-domain simulation. Their results showed that, under a constant wind speed, the fixed limits during simulations are adequate.

Do DFIG wind farms affect transient stability?

In Ref. 22, study result using the transient energy margin evaluation advocates that when the voltage sag, fault clearing time, and wind power penetration are higher than certain thresholds, the DFIG wind farms have an adverse impact on the transient stability.