Prediction technology and application of primary frequency regulation capability of thermal power unit

Abstract

As one of the important functions of grid connected thermal power generation units, the primary frequency regulation function aims to increase and decrease load rapidly when the grid frequency changes, so as to achieve the stability of grid frequency. The primary frequency regulation capability of the unit is easy to be affected by the current main parameters of the unit operation and the operation mode of the equipment, which will lead to the phenomenon that the primary frequency regulation capability of the unit is insufficient. This paper introduces the basic principle of primary frequency regulation of thermal power units, and puts forward the main technical methods for prediction of primary frequency regulation capacity of units. Through the real-time prediction of the primary frequency regulation capability of the thermal power generation unit, the operation parameters and equipment operation mode of the thermal power generation unit can be changed in time, so as to avoid the lack of primary frequency regulation capability when the grid frequency changes. Finally, a typical industrial case is used to verify the effectiveness of this technology.