Contribution of DG units to primary frequency control

The increasing penetration of distributed generation (DG) in the electricity grid will result in a reduction of the number of connected conventional power plants, which are nowadays responsible for control of the electricity network frequency. Currently DG units do not contribute to frequency control. With increasing penetration of DG it will become necessary however that they also contribute to frequency control. A significant part of the DG units are connected to the grid by a power electronic converter. It is possible to implement additional control in this converter to let the DG unit contribute to frequency control. In this paper it is investigated how these controllers can be implemented and it is analyzed how large the contribution of several types of DG units can be

[1]  E. Rideal,et al.  Fuel Cells , 1958, Nature.

[2]  H. H. Happ,et al.  Power System Control and Stability , 1979, IEEE Transactions on Systems, Man, and Cybernetics.

[3]  Gary W. Chang,et al.  Power System Analysis , 1994 .

[4]  Kevin Tomsovic,et al.  Development of models for analyzing the load-following performance of microturbines and fuel cells , 2002 .

[5]  J.T.G. Pierik,et al.  Voltage dip ride-through control of direct-drive wind turbines , 2004, 39th International Universities Power Engineering Conference, 2004. UPEC 2004..

[6]  Jørgen Nygaard Nielsen,et al.  Introduction to the Modelling of Wind Turbines , 2005 .

[7]  Jan Pierik,et al.  Inertial response of variable speed wind turbines , 2006 .