Improved maneuverability of power plants for better grid stability

Abstract The interaction between power systems and power plants is becoming more and more important as power system operators look at the properties of power plants with respect to their response and maneuvering capabilities, whereas plant operators look at the expenses that are incurred with frequency support operation. The new unit control method presented here is designed to improve power plant response. The thermodynamic losses usually associated with rapid frequency control can be avoided if, in addition, condensate throttling is used. The proposed method has been proved over several years. Experimental results are presented, demonstrating the validity of the approach.