A novel multivariable laboratory process that consists of four interconnected water tanks is presented. The linearized dynamics of the system have a multivariable zero that is possible to move along the real axis by changing a valve. The zero can be placed in both the left and the right half-plane. In this way the quadruple-tank process is ideal for illustrating many concepts in multivariable c...

This paper presents an improved multi-input multi-output based grid-forming (MIMO-GFM) converter control method using multivariable feedback control. Although the original MIMO-GFM is proven to be superior and robust only low-order controllers, it easily affected by high-frequency components, particularly for without inner cascaded voltage current loops when connected into a strong grid. The pr...

A 2-degree-of-freedom internal model control strategy based on U-model is presented for an unknown multivariable nonlinear systems. The proposed algorithm focuses the case where the noise is added at the input of the system and makes use of a local disturbance rejector. The unknown multivariable nonlinear system is identified by the control oriented U-model and the inverse controller is establi...