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Relay feedback based on fuzzy multiple model and its application to the 330 MW unit coordinated control system

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3 Author(s)
Jian-Ping Sun ; Automation Department, North China Electric Power University, BaoDing, 071003, China ; Ya-Lun Li ; Ming Gao

The nonlinear problem of a 330MW unit coordination control system could be solved by analyzing the curve of sliding pressure using the equilibrium manifold method. The equilibrium manifold method finds stable working points of a nonlinear degree curve based on load interval. According to nonlinear degree and stable working points, a fuzzy multiple model technology is designed to reduce the influence of nonlinearity to the coordination control system. Then, a multivariable system relay feedback method is applied to optimize the PID parameters of the unit. The solution resolves the nonlinear problem of coordinate control system and also improves rate and accuracy of the system response to the load. Simulation results show that the proposed method is effective.

Published in:

2012 International Conference on Machine Learning and Cybernetics  (Volume:3 )

Date of Conference:

15-17 July 2012