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Keywords:
wave energy; modeling; permanent magnet linear generator (PMLG); state estimation; sliding mode observer (SMO); linear matrix inequality (LMI)
wave energy; modeling; permanent magnet linear generator (PMLG); state estimation; sliding mode observer (SMO); linear matrix inequality (LMI)
Summary:
This paper synopsis a new solution for Permanent Magnets Linear Generator (PMLG) state estimation subject to bounded uncertainty. Therefore, a PMLG modeling method is presented based on an equivalent circuit, wherein a mathematical model of the generator adapted to wave energy conversion is established. Then, using the Linear Matrix Inequality (LMI) optimization and a Lyapunov function, this system's Sliding Mode Observer (SMO) design method is developed. Consequently, the proposed observer can give a robust state estimation. At last, numerical examples with and without uncertainty are included to exemplify the effectiveness and applicability of the suggested approaches.
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