Multi-PI Control for Block-structured Nonlinear Systems

A Multi-PI control strategy is presented for block-structured nonlinear systems, aiming to overcome the drawbacks of the conventional nonlinearity inversion control method and improve the closed-loop control performance. Besides, the proposed Multi-PI method applies the traditional PI control algorithm to complex nonlinear systems, simplifying the control problems largely and reducing computation load greatly. Two benchmark systems are studied to demonstrate the effectiveness of the proposed control method.

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