Design and Performance Test of Hydraulic PTO for Wave Energy Converter

被引：27

作者：

Choi, Kyung-Shik ^{[1
]}

Yang, Dong-Soon ^{[1
]}

Park, Shin-Yeol ^{[1
]}

Choi, Byung-Hak ^{[1
]}

机构：

[1] Korea Elect Power Res Inst, Green Growth Lab, Taejon 305760, South Korea

来源：

INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING | 2012年 / 13卷 / 05期

关键词：

Efficiency; Wave energy converter; Rotating body; PTO (Power take-off); POWER TAKE-OFF; SYSTEM; BODY;

D O I：

10.1007/s12541-012-0105-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A PTO (power take-off) system for 50kW class rotating body type WEC (wave energy converter) has been designed, constructed and tested. The WEC has a semi-submerged, articulated structure composed of two cylindrical body sections linked together by a hinge joint. The wave-induced motion of the joint is resisted by a hydraulic cylinder, which pumps high-pressure oil to PTO system having a generator-coupled hydraulic motor and a smoothing accumulator. The hydraulic PTO provides an efficient way for generating high quality electric power from the reciprocating motion of the cylinder. The economic viability of a WEC largely depends on the energy conversion efficiency of its PTO. The efficiency of the overall PTO system and individual parts are measured at the 5, 20, 35 and 43kW of generator power while the generator is tied to the commercial 380 Vac grid. In this paper, the design of a hydraulic PTO is presented, and the performance of the PTO is discussed

引用

页码：795 / 801

页数：7

共 13 条

[1] Laboratory experiment on heaving body with hydraulic power take-off and latching control [J].

Bjarte-Larsson, T ;

Falnes, J .

OCEAN ENGINEERING, 2006, 33 (07) :847-877

[2] Modeling and control of a 75 kW class variable liquid-column oscillator for highly efficient wave energy converter [J].

Cho, Byung-Hak ;

Yang, Dong-Soon ;

Park, Shin-Yeol ;

Choi, Kyung-Shik ;

Lee, Do-Hwan ;

Byun, Seung-Hyun ;

Jung, Hoon .

OCEAN ENGINEERING, 2011, 38 (2-3) :436-443

[3]

Cruz J., 2008, OCEAN WAVE ENERGY CU, P304

[4] Electricity generation from wave power in Canada [J].

Dunnett, David ;

Wallace, James S. .

RENEWABLE ENERGY, 2009, 34 (01) :179-195

[5] Phase control through load control of oscillating-body wave energy converters with hydraulic PTO system [J].

Falcao, Antonio F. de O. .

OCEAN ENGINEERING, 2008, 35 (3-4) :358-366

[6] Modelling and control of oscillating-body wave energy converters with hydraulic power take-off and gas accumulator [J].

Falcao, Antonio F. de O. .

OCEAN ENGINEERING, 2007, 34 (14-15) :2021-2032

[7]

Falnes J, 2001, INT OFFSHORE POLAR E, P567

[8] Design, simulation, and testing of a novel hydraulic power take-off system for the Pelamis wave energy converter [J].

Henderson, R .

RENEWABLE ENERGY, 2006, 31 (02) :271-283

[9] Prototype testing of the wave energy converter wave dragon [J].

Kofoed, JP ;

Frigaard, P ;

Friis-Madsen, E ;

Sorensen, HC .

RENEWABLE ENERGY, 2006, 31 (02) :181-189

[10]

NOK Ltd, 2009, PACK HYDR SEAL SYST

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