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Weighted Effect Coding for Observational Data with wec [PDF]

open access: yesThe R Journal, 2017
Weighted effect coding refers to a specific coding matrix to include factor variables in generalised linear regression models. With weighted effect coding, the effect for each category represents the deviation of that category from the weighted mean (which corresponds to the sample mean).
Nieuwenhuis, Rense   +2 more
openaire   +3 more sources

Site selection techniques and methodologies for WECS [PDF]

open access: yes, 1977
The question of siting a wind energy conversion system, or systems (WECS), represents a balance between economic and technical criteria and the environmental and social values of the user and the local citizens, whether the WECS is for a small farm or a ...
Drake, R L
core   +1 more source

Reliability Assessment of Water Hydraulic-Drive Wave-Energy Converters

open access: yesEnergies, 2019
The main objective of the current paper is to determine fatigue critical details of wave-energy converters (WECs) and to evaluate their reliability.
Hua Liu   +6 more
doaj   +1 more source

Particle swarm optimisation technique to improve energy efficiency of doubly-fed induction generators for wind turbines

open access: yesThe Journal of Engineering, 2019
Wind energy conversion systems (WECSs) require a suitable control to maximise the power generated by wind turbines independently on the wind conditions.
Cherngchai Sompracha   +2 more
doaj   +1 more source

Contributions to Modeling, Simulation and Controlling of a Pumping System Powered by a Wind Energy Conversion System

open access: yesEnergies, 2021
At present, the energy consumption of the pumping unit represents the highest cost in operating a pumping system. Due to this reason, this paper proposes a reliable and robust solution for integrating a wind energy conversion system (WECS) into an ...
Dorin Bordeașu   +2 more
doaj   +1 more source

Economic viability and profitability assessments of WECS

open access: yes, 2020
Technical and technological advances in alternative energy sources have led many countries to add green energy to their power plants to reduce carbon emissions and air pollution.
Abd, Mohammed Kdair, Mohammed Kdair Abd
core   +1 more source

Event-triggered mechanism based robust fault-tolerant control for networked wind energy conversion system

open access: yesGlobal Energy Interconnection, 2022
In this paper, a novel robust fault-tolerant control scheme based on event-triggered communication mechanism for a variable-speed wind energy conversion system (WECS) with sensor and actuator failures is proposed.
Zhihong Huo, Chang Xu
doaj   +1 more source

Investigation of LVRT Capability of a DFIG Based WECS Under Different Grid Codes

open access: yes, 2022
International audienceDuring voltage drops, wind turbines must remain connected to the grid and contribute to the voltage stability. This requires that all modern installations must be equipped with Low-Voltage Ride-Through (LVRT) capability based on ...
Kouzou, Abdellah   +3 more
core   +1 more source

Frequency-Based Performance Analysis of an Array of Wave Energy Converters around a Hybrid Wind–Wave Monopile Support Structure

open access: yesJournal of Marine Science and Engineering, 2020
In this paper, we investigate, in the frequency domain, the performance (hydrodynamic behavior and power absorption) of a circular array of four semi-immersed heaving Wave Energy Converters (WECs) around a hybrid wind–wave monopile (circular cylinder ...
Sofia Gkaraklova   +2 more
doaj   +1 more source

Cost-Effective Optimization of an Array of Wave Energy Converters in Front of a Vertical Seawall

open access: yesEnergies, 2023
The present paper focuses on investigating the cost-effective configuration of an array of wave energy converters (WECs) composed of vertical cylinders situated in front of a vertical seawall in irregular waves.
Senthil Kumar Natarajan, Il Hyoung Cho
doaj   +1 more source

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