Detailed Study of Closed Stator Slots for a Direct-Driven Synchronous Permanent Magnet Linear Wave Energy Converter
Erik Lejerskog,Mats Leijon +1 more
- Vol. 2, Iss: 1, pp 73-86
Reads0
Chats0
TLDR
In this article, the authors analyze how a permanent magnet linear generator for wave power behaves when the stator slots are closed, where the usual design of stator geometry is to use open slots to main...Abstract:
The aim of this paper is to analyze how a permanent magnet linear generator for wave power behaves when the stator slots are closed. The usual design of stator geometry is to use open slots to main ...read more
Citations
More filters
Posted ContentDOI
Cogging Torque Reduction Based on a New Pre-Slot Technique for a Small Wind Generator
TL;DR: A novel mitigation technique using compound pre-slotting, based on a combination of magnetic and non-magnetic materials, is investigated and shows that cogging torque can be reduced by a factor of 48% with this technique, while avoiding the main drawback of the conventional pre- slotting technique.
Journal ArticleDOI
Design of Permanent-Magnet Linear Generators with Constant-Torque-Angle Control for Wave Power
TL;DR: In this article, a simulation method for direct-drive permanent-magnet linear generators designed for wave power is presented, which is based on Faraday's law of induction and circuit equations for constant-torque-angle control.
Journal ArticleDOI
Survey of the mechanisms of power take-off (PTO) devices of wave energy converters
TL;DR: Advantages and disadvantages of the linear direct and indirect drive PTO devices for ocean wave energy conversion are presented to present advantages and disadvantages.
Journal ArticleDOI
Cogging Torque Reduction Based on a New Pre-Slot Technique for a Small Wind Generator
TL;DR: In this paper, a mitigation technique using compound pre-slotting, based on a combination of magnetic and non-magnetic materials, is investigated to reduce the cogging torque of a small wind turbine.
Journal ArticleDOI
A Review of the Linear Generator Type of Wave Energy Converters’ Power Take-Off Systems
TL;DR: In this paper , the authors reviewed the recent research developments of the linear permanent magnet (PM) generator-based WEC to harness maximum energy from ocean waves and provided conclusions about the significant beneficial characteristics and design choice of the WEC linear generator structure and related to the application conditions.
References
More filters
Journal ArticleDOI
Wave energy utilization: A review of the technologies
TL;DR: In this article, the development of wave energy utilization since the 1970s is discussed, with a focus on the characterization of the wave energy resource; theoretical background, with especial relevance to hydrodynamics of wave absorption and control; how a large range of devices kept being proposed and studied, and how such devices can be organized into classes; the conception, design, model-testing, construction and deployment into real sea of prototypes.
Journal ArticleDOI
Experimental results from sea trials of an offshore wave energy system
Rafael Waters,Magnus Stålberg,Oskar Danielsson,Olle Svensson,Stefan Gustafsson,Erland Strömstedt,Mikael Eriksson,Jan Sundberg,Mats Leijon +8 more
TL;DR: In this article, a full-scale prototype of a wave power plant has been installed off the Swedish west coast and the overall wave energy converter concept has been verified, and initial results have been collected and s...
Journal ArticleDOI
Analysis and modeling of air-gap and zigzag leakage fluxes in a surface-mounted permanent-magnet Machine
Ronghai Qu,Thomas A. Lipo +1 more
TL;DR: In this paper, the magnetic characteristics of surface-mounted permanent magnet machines are analyzed and modeled in terms of the magnetic material properties and the motor dimensions, and the results show that the errors between the FEM results and analytical predictions are less than 7% for nonsaturated tooth flux and less than 17% for the saturated case.
Journal ArticleDOI
Simulation of wave-energy converter with octagonal linear generator
TL;DR: In this article, the authors presented simulations of octagonal three-phase linear generators in the 100-kW power range for ocean wave-energy conversion and a substantial reduction in power fluctuations and voltage harmonics were predicted.