Automatic generation control of multi area interconnected power system considering nonlinearity due to governor dead band
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The paper focuses on the problem of automatic generation control of multi area power system considering nonlinearity due to governor dead band. The objective of this work is to develop a mathematical model and method of solution to study the dynamic response and to present an optimization method to choose the optimal gain setting of the load frequency controller. A method, called decomposition technique is proposed to study the dynamic response of multi area interconnected power system with AGC. Using this technique a system with large number of interconnected areas with widely different area characteristics can be modeled and studied. Another algorithm is proposed to implement conjugate gradient method for optimization of controller gain parameter by minimizing certain performance index. A case study with four area interconnected system including governor dead band shows that the method is effective.
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