Procedures for connecting distributed wind power to the grid

Do wind farms need a grid connection?

The number of medium-size and large wind farms (greater than 50 MW) connected to the high-voltage transmission system is likely to increase dramatically, especially with offshore wind farms. In the past, a grid connection requirement (GCR) for wind turbines or wind farms was not necessary due to low level of wind power penetration.

What are the interconnection regulations for wind turbines?

These interconnection regulations for wind turbines or wind farms tend to add the following requirements: To maintain operation of the turbine during a fault in the grid, known as fault ride-through capability; To operate the wind turbine in the predefined frequency range;

What are the three modes of wind turbine on-grid control?

The wind turbine on-grid control device has three modes: soft grid connection, step-down operation and rectification and inversion.

How do wind turbines work?

Large wind turbines are directly connected to the grid for operation. Therefore, the wind turbines must be installed in one place to form a scale, which is called a wind farm. There are two different types of wind power generation, namely: stand-alone operation – off-grid and connected to the power system – grid-connected.

Can a wind turbine be disconnected from the grid?

If a wind turbine faces overloads, stability, or other kinds of technical problems in area 2, it can be disconnected itself from the grid provided a resynchronization can take place after 2 seconds.

What is grid-connected wind power?

Grid-connected wind power is a large-scale wind farm with a capacity of several megawatts to hundreds of megawatts, consisting of dozens or even hundreds of wind turbines.