Grid-connected wind farms currently under construction are mainly connected to the grid via voltage levels of 110 (66) KV and above. Some other regions have specific voltage levels. For example, there are network-specific voltage levels. -wind farms connected in the northwest via 330KV, and the northeast power grid is unique. The voltage level of 66KV is connected to the network. There are many wind farms in the North East which are integrated at the voltage level of 220KV and then connected to the grid. via 500KV.
In addition, there is also direct access to 35KV distribution near the coastal load centers of the power grid.
Thus, the selection of the voltage level connected to the wind farm grid must take into account factors such as wind farm capacity, long-term planning, local grid, power supply, actual charging conditions, etc. and dis generally to be determined by the design institute through research.