Variable Structure Control for Unmatched MIMO Nonlinear System with Its Application to MCFC Stacks |
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| Authors: | Xu Chunshan Sun Xingjin Cao Guangyi Zhu Xinjian |
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| Affiliation: | Institute of Fuel Cell, Shanghai Jiaotong University, Shanghai 200030, P.R.China;Institute of Fuel Cell, Shanghai Jiaotong University, Shanghai 200030, P.R.China;Institute of Fuel Cell, Shanghai Jiaotong University, Shanghai 200030, P.R.China;Institute of Fuel Cell, Shanghai Jiaotong University, Shanghai 200030, P.R.China |
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| Abstract: | A new Variable Structure Control (VSC) with Rapid-Smooth Reaching Law (RSRL) and Rapid-Convergent Sliding Mode (FCSM) is proposed, which is based on normal VSC system. When it is used to unmatched MIMO nonlinear system, the authors combine the method of Input/Output Linearizing (I/O L) with VSC: they use the I/O L method to solve the "Unmatched" problem and use the new VSC to get good result of control. After analyzing the robustness of the MIMO nonlinear system, they use this novel controller to the temperature and gas pressure control system of Molten Carbonate Fuel Cell (MCFC) Stacks. Simulation provides quite satisfactory performance with unmatched uncertainties and external disturbances. Its future actual application is practical. |
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| Keywords: | reaching law sliding mode variable structure control input/output linearizing MCFC |
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