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© P. Kundur

WTG -  20

Impact on System Dynamic Performance cont’d

DFIGs and generators with full converter interface do not contribute to system inertia

May contribute to “frequency instability”, particularly in smaller power systems with high penetration of wind generation

Special controls needed to solve this problem

Present WTG designs do not contribute to primary frequency regulation

Some demonstration projects in Europe have illustrated the possibility of frequency regulation using WTGs

Requires more work and study before practical implementation

Detailed simulation studies using appropriate wind plant models essential for satisfactory integration of large wind farms into power grids

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