Sliding Mode Extremum Seeking Control for Maximum Power Point Tracking in Wind System

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2016-02
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English
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Abstract

This paper proposes a sliding mode extremum seeking control (SM-ESC) for maximum power point tracking (MPPT) in variable speed wind energy conversion system, which includes the permanent magnet synchronous generator (PMSG), the uncontrolled rectifier, boost converter, battery and the DC constant power load (CPL). The presented MPPT control method integrates the theory of sliding mode control and the extremum seeking control. It refrains from some disadvantages in traditional wind MPPT methods, such as detecting the gradient of output power vs. rotor speed, longer transient response, high frequency noise and larger oscillations of output power. The specific working principle and adaptive step size setting of the MPPT controller are also analyzed based on the SM-ESC algorithm. Numerical simulation results demonstrate accurate operation and robustness of the MPPT algorithm in each operating condition.

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Shen, D., Khayyer, P., & Izadian, A. (2016). Sliding mode extremum seeking control for maximum power point tracking in wind system. In 2016 IEEE Power and Energy Conference at Illinois (PECI) (pp. 1–6). https://doi.org/10.1109/PECI.2016.7459231
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2016 IEEE Power and Energy Conference at Illinois (PECI)
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