Comprehensive Evaluation on the Primary Frequency Regulation Performance of Generator Units Based on Data from a Wide Area Measurement System

On-line monitoring of the unit's primary frequency regulation performance can be realized on the basis of measured data from WAMS (Wide Area Measurement System). Based on measured data and according to the index importance, this paper establishes the unit primary frequency regulation performance evaluation index system, including the percentage of pass of the primary frequency regulation response lag time and stabilization time, the effect of primary frequency regulation, and percentage of pass of maximum regulation amplitude of load. Then, it employs close value methods to achieve the comprehensive performance evaluation of the primary frequency. The proposed method can provide some reference for comprehensive evaluations of the actual performance of a unit's primary frequency regulation.