The dynamics of the wind farm are attributed to three major factors: the scale of the wind farm, the control parameters and the operating point of wind generators.
In the first stage, ANFIS is implemented to predict wind speed at the exact height of the wind turbine hub at the point of wind farm installation.
Then, the midnight accumulation point of winds by thermospheric diurnal tide (and associated MTM) would occur in the northern hemispheric side of the geographic equator.
4) The coupling point of wind power with power system is sensitive to cascading failure, while the selecting of larger degree and heavy load nodes for wind power is conducive to system stable operation. .
In recent years, the installation of wind power energy has moved from small wind farms with a few wind turbines to large wind farms with more than hundreds of MW of capacity, and the connection point of wind farm have developed from low-voltage-level electricity distribution system to high-voltage-level electricity transmission system.
According to [2, 3, 4], the effects of large-scale wind farms can be either detrimental or beneficial, depending on many factors, such as wind speed, capacity, and connecting point of wind farms, length of transmission lines connecting wind farms to the system, and original structure of power systems, etc.
The findings suggest that from both the economic and technical point of views wind power is a healthy, sustainable and efficient means to provide clean power for the energy market in China.
Open image in new window Fig. 8 Impacts of different load points of wind power integration on power system Open image in new window Fig. 9 Impacts of different degree points of wind power integration on power system.
To analyze the impacts of different points of wind power coupling with the power grid, a typical wind farm in north China (Fig. 4) is added as the 31st power node in the IEEE 30 bus system, where the locations of the wind farm is set at the nodes with rather larger load or degree, respectively.
It can be seen from Fig. 8 and Fig. 9 that the larger degree and load nodes of the points of wind farm integration, the better of connectivity level and global effective performance, as well no load loss in the power system.
