Maximizing the Absorbed Power of A Point Absorber Using An FA-Based Optimized Model Predictive Control

Abstract

This paper presents an extended model predictive controller for maximizing the absorbed power of a point absorber wave energy converter. Owing to the great influence of controller parameters upon the absorbed power, the optimization of these parameters is carried out for the first time by a firefly algorithm (FA). Error, the difference between output velocity of buoy and input wave speed which leads to power maximization in the optimized MPC is compared with the classical MPC. Simulation results indicate that given the high accuracy and acceptable speed of the algorithm, it can adjust the parameters of the controller to the point where system error decreased effectively and the absorbed energy increased about 4 MW.

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Correspondence to Reihaneh Kardehi Moghaddam.

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Rahimi, N., Moghaddam, R.K. Maximizing the Absorbed Power of A Point Absorber Using An FA-Based Optimized Model Predictive Control. China Ocean Eng 32, 696–705 (2018). https://doi.org/10.1007/s13344-018-0071-4

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Key words

  • wave energy
  • point absorber
  • predictive controller
  • firefly algorithm