wave generator Articles
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Schlieren photography in physics
Abstract Schlieren photography has been used many years in physics; however it has proved to be exceptionally valuable in the study of ultrasonic waves in liquids. Part of the reason for its value is that many of the ultrasonic phenomena studied have their optical analogues. Thus, when one studies ultrasonic images he actually is studying a general wave phenomenon from a perspective that is ...
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Modelling and simulation of faults in synchronous generators for robust numerical protection
When an internal fault occurs in a synchronous generator, the symmetry between the parallel paths of the winding is broken and different currents flow in them, due to unsymmetrical magnetic linkage between the stator windings. The aim of this paper is to present a simulation model to investigate the effect of internal fault on the parallel path currents of a large synchronous generator using ...
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Application of continuous wavelet transform to the impact location estimation of the Loose Parts Monitoring System (LPMS)
The Loose Parts Monitoring System (LPMS) provides information on the location of a loosened or detached metal impacted onto the inner surface of a primary pressure boundary and on a mass or energy of the impact signal. For the conventional system, it is popular to employ the group delay among the sensors installed within 3 ft range from the impact source in a collection zone as stated in the Reg. ...
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Power control strategy for grid connected permanent magnet synchronous generator of a distributed generation unit
This paper describes the studies on the operation and control of a variable speed wave energy conversion system. The wave energy conversion system considered is oscillating–water–column (OWC) based Wells turbine driven permanent magnet synchronous generator connected to the grid by means of fully controlled frequency converter. In such systems primary aim is to achieve a low distortion, high ...
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Unique Full-Scale PTO System Bi-Directional Wind Tunnel Test Facility - Case Study
Wave energy converters are generally placed in a very harsh environment and are hard to access due to their location and/or unfavorable weather conditions. With this in mind a full-scale wind tunnel test facility capable of simulating a variety of wave heights and wave periods has been built to fully test and validate Aquanet's full-scale 1MW rated capacity Power Take-Off system (PTO). The unique ...
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The Structure of Turbulence and mixed-phase Cloud Microphysics in a Highly Supercooled Altocumulus Cloud
Abstract. Observations of vertically resolved turbulence and cloud microphysics in a mixed-phase altocumulus cloud are presented using in situ measurements from an instrumented aircraft. The turbulence spectrum is observed to have an increasingly negative skewness with distance below cloud top, confirming that longwave radiative cooling from the liquid layer cloud is the source of turbulence ...
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The meaning of the parameters measured by the energy meter
- Nov 29, 2022- 2022-11-24 00:00 Energy meter is an instrument used to measure electric energy. Also be called electricity meter, electric energy meter. Electricity meter is the basis for the operation and settlement of electric power enterprises, but also an important link in the security of the power grid, residential households, industrial and commercial industrial units, etc. have adopted ...
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Is marine energy about to go mainstream?
Why the costs of wave and tidal power could soon plummet - viewpoint from Dr Stephen Wyatt, Head of Technology Acceleration, Carbon Trust As the marine industry gathers in London for its annual get together one thing is clear; the sector is growing up fast. So fast that it looks like it will soon be defying its critics and getting its feet seriously wet after many years of tests, tanks and ...
By Carbon Trust
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Research and development in ocean energy technologies
The volatile fuel prices for electricity generation, elevated concerns about global warming and energy security has prompted countries to look for alternative energy sources. One of the alternative energy sources is ocean energy. Currently, there is few ocean energy technologies that are commercially available to harness electrical energy from ocean despite the fact that ocean covers more than ...
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Why it`s time to get serious about wave power
For most of us power from the sea means watching waves crashing on a beach or smashing up against a breakwater. But if you want to experience wave power at its most energetic then you need to be offshore. In fact you need to be over one hundred kilometres offshore. In February 2000, a British oceanographic research vessel sailing in the Rockall Trough, some 180Km from land, encountered the ...
By Carbon Trust
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Garden Island Microgrid (WA) Project
The Garden Island Microgrid is an integrated renewable microgrid project including a connection to Carnegie’s wave energy site directly offshore from the island. The 2 MW of solar and associated battery system provide clean, reliable energy to Australia’s largest naval base. Customer : Department of Defence Project Partners: Department of Defence, Western Power and the Australian ...
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Detection of inter-coil short circuits in coils of salient pole synchronous generator field winding on the basis of analysis of magnetic field in the machine
Abstract This paper deals with detection of inter-coil short circuits in coils of the salient poles synchronous generator excitement winding on the basis of the analysis of the magnetic field in the machine. Applying FEM to the generator model, magnetic field wave forms in the machine, on the points of interests, under both, faultless and faulty conditions were calculated. When results were ...
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An efficient hybrid wave/photovoltaic scheme for energy supply in remote areas
This paper presents the efficient utilisation of hybrid photovoltaic/wave energy system for desalination water pumping and supplying the local AC and DC loads. The novel hybrid system comprises eight key parts. The PV array and wave energy permanent magnet linear generator (PMLG) as energy sources, novel AC side modulated power filter compensator (MPFC), AC-DC converter, novel DC side green plug ...
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A novel particle swarm optimisation self-regulating stand-alone wave energy conversion scheme
The paper presents a novel stabilisation scheme system for a wave energy converter (WEC) using permanent magnet linear generator (PMLG) connected to a six-pulse diode rectifier. The proposed controller of WEC-battery renewable energy system is based on multi-objective particle swarm optimisation (MOPSO) technique. The optimisation algorithm is implemented to control a novel low cost dynamic AC ...
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AOPS Are Going to Help Transform the Ocean Economy, but What are They?
From electric vehicle charging stations appearing everywhere to the drones Amazon is using to deliver packages in some markets, it is easy to see the electrification transformation that’s occurring on land. But the ocean is out of sight and out of mind, which is why many people don’t know what’s happening in the busy, multitrillion dollar economy operating out there. ...
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Floating wind digital twin set to accelerate wave impact learnings
A new digital twin project led by floating wind developer Principle Power will use advanced wave behavior analysis to improve load calculations critical to long-term design efficiency, project partners told New Energy Update. Last month, U.S. group Principle Power announced it would lead a consortium of public and private groups to develop the world's first digital twin software for floating ...
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Electronic energy meter production cannot be separated from manual welding
Manual soldering, also known as soldering, is an indispensable operation skill in the assembly of electronic products, although modern enterprises have generally used automatic insertion, wave soldering and other automatic soldering production processes, but some sensitive devices, product trial production, electronic product maintenance and some occasions that are not suitable for automatic ...
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Oceans of Energy
Technologies that harness the energy of moving water or temperature differentials in the oceans promise to deliver abundant carbon-free electricity. Long before humans got hooked on fossil fuels, we learned how to harness the power of water to do work. Rivers ran mills that ground flour, sawed logs or spun looms that transformed fibers into textiles. Later generations realized that moving water ...
By Ensia
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Data Highlight: Hydropower Continues Steady Growth
World hydroelectric power generation has risen steadily by an average 3 percent annually since 1965. In 2011, at 3,500 billion kilowatt-hours, hydroelectricity accounted for roughly 16 percent of global electricity generation, almost all produced by the world’s 45,000-plus large dams. Graph on World Hydroelectric Generation, 1965-2011 Four countries dominate the hydropower landscape: ...
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Modified Sine Wave Inverters vs Pure Sine Wave Inverters
Most everyday appliances and commercial tools run on AC power. This is fine if you’re connecting the device to a wall outlet that provides AC power. But what if you want to use power from a DC source, like a solar-powered generator or a car battery? In such cases, individuals need to use an inverter – a device that converts DC power to AC power. There are several types of inverters ...
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