A graphical overview of the various impacts of wind power in the power system is given in figure 2.7. it shows the local and system wide impacts, as well as the short- and long-term impacts, for the various affected aspects of the power system, which include grid infrastructure, system reserves and system adequacy.. Effect of grid-connected wind turbine generators on power system transient stability the dynamic characteristic of a power system is largely influenced by the presence of wind turbines into it. a fault at the grid causes change in electromagnetic torque of a wind machine.. Wind turbine manufacturer vestas claims that initial energy "pay back" is within about 7–9 months of operation for a 1.65-2.0mw wind turbine under low wind conditions, whereas siemens wind power calculates 5–10 months depending on circumstances. pollution and effects on the grid pollution costs.
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