| 摘要 |
The present invention provides a model predictive control scheme which reflects a bilinear state equation considering the non-linearity of a converter for inner loop control while following a stepped voltage control scheme for controlling the output of a direct current/direct current converter and minimizing a following error among a wanted steady state, a reference state and a control input while reducing a needed calculation amount to ensure global stability even under control input constraints. In addition, the present invention provides the model predictive control scheme which applies additional conditions to a control input to reflect state constraints. The present invention applies a model predictive controller, considering the non-linearity of the converter, to an inner loop for controlling the output of the direct current/direct current converter, thereby having an effect of stably controlling output voltage. The newly presented model predictive controller reflects the intrinsic non-linearity of the converter and ensures the stability even under the control input constraints, thereby having an effect of eliminating the following error of the output voltage of the direct current/direct current converter. |
