Abstract
The main obstacle of the existing Lyapunov Direct Stability (LDS) based controllers for AC/DC boost rectifier is its poor robustness when it deals with uncertainties in the system parameters and measurements. In this paper, robust and asymptotically stable controller for AC/DC boost rectifier based on Lyapunov Direct Stability method is proposed. The performance of the introduced LDS-based controller is validated using MATLAB Simulink. The obtained simulation results for the proposed controller implies its fast dynamic performance. In addition, the control laws are derived directly based on LDS theory to ensure the global asymptotic stability. The robustness of the LDS based controller is tested in the presence of uncertainties in the system parameters and its performance is also compared with conventional LDS based controllers. The faster dynamic performance and asymptotic stability are making the proposed controller an interesting solution for power electronic conversion applications.
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