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Open AccessArticle

Fuzzy Control of Waves Generation in a Towing Tank

1
Department of Electric Drives and Energy Conversion, Faculty of Electrical and Control Engineering, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland
2
Maritime Advanced Research Centre (CTO S.A.), Szczecińska 65, 80-392 Gdańsk, Poland
*
Author to whom correspondence should be addressed.
Energies 2020, 13(8), 2049; https://doi.org/10.3390/en13082049
Received: 6 March 2020 / Revised: 2 April 2020 / Accepted: 11 April 2020 / Published: 20 April 2020
(This article belongs to the Special Issue Control Strategies for Power Conversion Systems)
This paper presents the results of research related to the transformation of electrical energy into potential and kinetic energy of waves generated on the water surface. The waves are generated to model the environmental conditions for the needs of the model tests. The model tests are performed on model-scale objects to predict the features of full-scale maritime objects. It is done to improve human safety and the survivability of constructions. Electrical energy is transformed into the energy of the water waves using a wave maker. The wave maker considered is a facility with an electrohydraulic drive and an actuator submerged into the water. The actuator movement results in the waves being mechanically-generated in accordance with the wave maker theory. The study aimed to investigate the advantage of the newly implemented fuzzy-logic controller over the hitherto cascading proportional-integral controllers of the wave maker actuator. The research was focused on experimental investigation of the transformation process outcomes harvested under the fuzzy-logic controller, versus the cascading proportional-integral controllers. The waves were generated and measured in the real towing tank, located in the Maritime Advanced Research Centre (CTO S.A.). The investigation confirmed the advantage of the fuzzy-logic controller. It provides more accurate transformation of energy into the desired form of the water waves of specified parameters—frequency and amplitude—and more flat amplitude-frequency characteristic of the transformation process. View Full-Text
Keywords: energy transformation; fuzzy control; model tests; towing tank; wave energy; wave generation; wave maker energy transformation; fuzzy control; model tests; towing tank; wave energy; wave generation; wave maker
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Drzewiecki, M.; Guziński, J. Fuzzy Control of Waves Generation in a Towing Tank. Energies 2020, 13, 2049.

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