Constrained optimal control of a point absorber wave energy converter with linear generator

被引：27

作者：

Wang, Liguo ^{[1
]}

Engstrom, Jens ^{[1
]}

Goteman, Malin ^{[1
]}

Isberg, Jan ^{[1
]}

机构：

[1] Uppsala Univ, Angstrom Lab, Swedish Ctr Renewable Elect Energy Convers, Dept Engn Sci,Div Elect, Uppsala 75121, Sweden

来源：

JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY | 2015年 / 7卷 / 04期

关键词：

POWER ABSORPTION; LATCHING CONTROL; DEVICE;

D O I：

10.1063/1.4928677

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper investigates a method for optimal control of a point absorbing wave energy converter by considering the constraints on motions and forces in the time domain. The problem is converted to an optimization problem with the cost function being convex quadratic and the constraints being nonlinear. The influence of the constraints on the converter is studied, and the results are compared with uncontrolled cases and established theoretical bounds. Since this method is based on the knowledge of the future sea state or the excitation force, the influence of the prediction horizon is indicated. The resulting performance of the wave energy converter under different regular waves shows that this method leads to a substantial increase in conversion efficiency. (C) 2015 Author(s).

引用

页数：15

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