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J. Mar. Sci. Eng. 2018, 6(2), 31; https://doi.org/10.3390/jmse6020031

Control of Wave Energy Converters with Discrete Displacement Hydraulic Power Take-Off Units

Department of Mechanical Engineering, Michigan Technological University, 1400 Townsend Dr, Houghton, MI 49931, USA
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Received: 7 February 2018 / Revised: 2 March 2018 / Accepted: 26 March 2018 / Published: 2 April 2018
(This article belongs to the Special Issue Advances in Ocean Wave Energy Conversion)
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Abstract

The control of ocean Wave Energy Converters (WECs) impacts the harvested energy. Several control methods have been developed over the past few decades to maximize the harvested energy. Many of these methods were developed based on an unconstrained dynamic model assuming an ideal power take-off (PTO) unit. This study presents numerical tests and comparisons of a few recently developed control methods. The testing is conducted using a numerical simulator that simulates a hydraulic PTO. The PTO imposes constraints on the maximum attainable control force and maximum stroke. In addition, the PTO has its own dynamics, which may impact the performance of some control strategies. View Full-Text
Keywords: wave energy conversion; PTO units; hydraulic PTO; WEC control wave energy conversion; PTO units; hydraulic PTO; WEC control
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Zou, S.; Abdelkhalik, O. Control of Wave Energy Converters with Discrete Displacement Hydraulic Power Take-Off Units. J. Mar. Sci. Eng. 2018, 6, 31.

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