Grid Connection of Wave Power Farm Using an N-Level Cascaded H-Bridge Multilevel Inverter

Ekström, Rickard; Leijon, Mats

doi:10.1155/2013/562548

Cited by 5 publications

(6 citation statements)

References 23 publications

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“…Hence, cable length of the wedge and circular geometries are roughly two thirds of the cable length in the randomized and rectangular geometries. In real wave energy parks, all WECs will not be connected to another WEC, but rather to a low voltage substation, from which a cable will be connected to either a medium voltage substation or directly to shore [27,28]. Nevertheless, the shortest distance between all the WECs presented above gives a hint of the minimum length of sea cable needed.…”

Section: Comparison Of Global Geometriesmentioning

confidence: 99%

Optimizing wave energy parks with over 1000 interacting point-absorbers using an approximate analytical method

Göteman

Engström

Eriksson

et al. 2015

International Journal of Marine Energy

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PostprintThis is the accepted version of a paper published in International Journal of Marine Energy. This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination.Citation for the original published paper (version of record):Göteman, M. (2015) Optimizing wave energy parks with over 1000 interacting point-absorbers using an approximate analytical method. Energy, Access to the published version may require subscription. N.B. When citing this work, cite the original published paper. International Journal of Marine AbstractLarge arrays of wave energy converters of point-absorber type are studied using an approximate analytical model. The model is validated against a numerical method that takes into account full hydrodynamic interactions based on linear potential flow theory. The low computational cost of the analytical model enables parameter studies of parks in the MW range and includes up to over 1000 interacting devices. The model is actuated by irregular wave data obtained at the Swedish west coast. In particular, focus is on comparing park geometries and improving park configurations to minimize the power fluctuations.

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Section: Comparison Of Global Geometriesmentioning

confidence: 99%

Optimizing wave energy parks with over 1000 interacting point-absorbers using an approximate analytical method

Göteman

Engström

Eriksson

et al. 2015

International Journal of Marine Energy

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show abstract

“…In 2009, three full-scale point-absorbers were installed off the west coast of Sweden, see Figure 9.3(a). By analysing the aggregated output power, it could be seen that the array effectively reduced the power fluctuations, and technical solutions for grid connections were presented [650,194]. A 1:2 scale prototype of the WaveStar WEC was installed at Hanstholm outside Denmark in 2009, and began operating in 2010, as shown in Figure 9.3(b).…”

Section: Experimental Modellingmentioning

confidence: 99%

Modelling and Optimisation of Wave Energy Converters

Ning¹,

Ding²

2022

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“…This inverter provided the modified sine wave but had a little amount of harmonic distortion and was not efficient for sensitive devices like motors, and so on. In Reference 16 for the protection of power substation, an inverter system and control were introduced by Rickard Ekstorm. This was without the feedback controller and used sine pulse width modulation when the load was applied this displayed a high voltage drop.…”

Section: Literature Review With Background Conceptsmentioning

confidence: 99%

Design and analysis of robust fuzzy logic maximum power point tracking based isolated photovoltaic energy system

Asif

Rehman

et al. 2020

Engineering Reports

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Photovoltaic (PV) energy is highly promising because of its renewable, green, and environment-friendly nature. In this article, the design and analysis of an isolated PV system using a push-pull converter with a fuzzy logic-based maximum power point tracking (MPPT) algorithm is presented. Furthermore, DC-DC converters, along with intelligent controllers fed with MPPT algorithms, are used to ensure the maximum extraction of incident energy. The proposed methodology utilizes fuzzy logic MPPT techniques based on an isolated push-pull boost converter to optimize the power output of PV modules, as well as to achieve isolation and high DC gain for DC/AC inversion. This work also presents a single-phase inverter with fuzzy logic close loop control analysis with LCL filter design. A Canadian solar panel of 250 W is assumed in this research work, which has an open circuit voltage 59.9 V, short circuit current 5.49 A at 25 • C temperature, and 1000 W/m 2 irradiance. The voltages are tracked, through the MPPT algorithm. These voltages represent a boost to 340 V DC through push-pull boost converter and are inverted up to 220 V AC through fuzzy logic voltage source inverter. In addition, a unipolar switching technique is used to remove the total harmonic distortion under linear load. The proposed methodology is simulated in MATLAB/Simulink. The simulation results verify that the proposed methodology can efficiently track the MPPT. Finally, the hardware prototype of the proposed system has been experimentally validated. K E Y W O R D S fuzzy logic control, maximum power point tracking, pulse width modulation, total harmonic distortion 1 INTRODUCTION Energy is the need of the modern world and there is a need to explore new means of energy, which are cheap and environment-friendly. The energy demand is increasing every year and already existing resources including thermal, hydro, nuclear, and gas are unable to meet the demand. There is a need for some alternate sources of energy that can meet This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Grid Connection of Wave Power Farm Using an N-Level Cascaded H-Bridge Multilevel Inverter

Cited by 5 publications

References 23 publications

Optimizing wave energy parks with over 1000 interacting point-absorbers using an approximate analytical method

Optimizing wave energy parks with over 1000 interacting point-absorbers using an approximate analytical method

Modelling and Optimisation of Wave Energy Converters

Design and analysis of robust fuzzy logic maximum power point tracking based isolated photovoltaic energy system

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