The model predictive current-controlled method based on observer identification

This paper presents a model predictive current-controlled method based on observer identification adopting in a single-phase inverter. In most cases, the mathematical model of the controlled object is unknown or inaccurate, or the system parameters in the mathematical model changes during normal operation. The observer is designed to identify the parameters in order to establish accurate state-space model. When the load parameters change, the actual current can still accurately track the reference value. This method has advantages of high tracking precision and fast transient response. The simulation verifies the method´s validity.