Model Predictive Control and the Selection of Cost Functions

In model predictive control strategy implementations, the cost function selection is very important in ensuring good performance. In this paper a study of the most common cost functions used for the control of two level voltage source inverters is presented. The paper compares several cost function alternatives that could be considered for different power electronic converter applications. The results show that Model Predictive Control is a suitable alternative for the implementation of different control objectives in power converters and show how to find the best balance in the cost function.