This work presents a novel load frequency control design approach for a two-area power system that relies on unsupervised and supervised learning neural network structure. Central to this approach is the prediction of the load disturbance of each area at every minute interval that is uniquely assigned to a cluster via unsupervised learning process. The controller feedback gains corresponding to each cluster center are determined using modal control technique. Thereafter, supervised learning neural network (SLNN) is employed to learn the mapping between each cluster center and its feedback gains. A real time load disturbance in either or both areas activates the appropriate SLNN to generate the corresponding feedback gains. The effectiveness of the control framework is evaluated on the Nigerian hydrothermal system. Several far-reaching simulation results obtained from the test system are presented and discussed to highlight the advantages of the proposed approach.

Meeting Name

IEEE Power Engineering Society General Meeting, 2004


Electrical and Computer Engineering

Keywords and Phrases

Nigerian Hydrothermal System; Cluster Center; Control Framework; Controller Feedback Gain; Feedback; Frequency Control; Hydrothermal Power Systems; Load Disturbance Prediction; Load Frequency Control; Load Regulation; Modal Control Technique; Neural Nets; Neural Network Structure; Power System Control; Power System Interconnection; Power System Simulation; Supervised Learning; Two-Area Power System; Unsupervised Learning

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2004 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jan 2004