Showing results for: high voltage transmission Articles
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Power quality improvement in HVDC systems using 18-pulse voltage source converter
This paper deals with the modelling, control and design of 18-pulse voltage source converters (VSCs) for high voltage DC (HVDC) transmission system with power quality improvement. A two-level VSC is used to realise an 18-pulse VSC operation with minimum switching loss. The performance of the VSC system is improved in terms of reduced harmonics level at fundamental frequency switching (FFS). The ...
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Power losses from wind generated electricity in high voltage AC transmission: an analysis through simulation
In this paper, we have investigated different types of losses from wind generated electricity in high voltage AC (HVAC) transmission. Wind power generation is expensive in nature and it is thus necessary to know how much power is lost in the transmission. We have simulated an HVAC transmission system with a wind power generator in Simulink. We varied different components of the system namely wind ...
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Distributed energy will play a key role in Renewable Energy Zones. Here’s how.
With the continued stream of announcements around the early closure of coal-fired power plants across Australia, Renewable Energy Zones (REZs) are a key way forward as coal makes its exit. To date, there are 41 potential REZs flagged for potential development, each undergoing different phases of planning and consultation. According to a recent EnergyCo event, New South Wales has less than ...
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Day-ahead AC-DC OPF-based nodal price prediction by artificial neural network (ANN) in a restructured electricity market
In the last few years, electricity markets have significantly restructured in both developed and developing countries. Accurate prediction of dayahead electricity nodal price has now become an important activity to address the price volatility in the marketplace. This will facilitate the market participants to estimate the risk and have effective decisionmaking in formulating bidding strategy. ...
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Line Post Insulator
We can offer different Voltage of Line Post Insulator for Transmission Line. Such as Long Rod Insulator, Rod Insulator and Pin Type Insulator. Contact us get more details about Line Post Insulator, such as TDS, Application Method, OEM etc. We can supply different type of Line Post Insulator, also customer required. Line post insulator is an industrial product used to insulate and suspend ...
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Toasting Pop-Tarts cheap: How electricity may solve our energy woes
We tend to talk about electricity in terms of its problems — it degrades the environment, costs too much and messes up scenic views. But the Manhattan Institute’s Peter Huber takes a different stand in his new report “The Million-Volt Answer to Oil.”Huber says electric power may be the cheap, efficient resource we seek to give America energy independence. He divides energy into two camps: ...
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California Must Take Back Its Power - Literally
We Californians are watching our state burn. Our houses are literally on fire, and yet we should not be surprised. Our current “new normal” is an utterly predictable consequence of global warming. While the climate crisis fueling our wildfires is the direct result of the fossil fuel industry’s profit-driven corporate greed, another culprit, one that has for years valued moneyed ...
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Generation Gap: Wind Opens Big Lead over Nuclear in China
In China, wind power is leaving nuclear behind. Electricity output from China’s wind farms exceeded that from its nuclear plants for the first time in 2012, by a narrow margin. Then in 2013, wind pulled away—outdoing nuclear by 22 percent. The 135 terawatt-hours of Chinese wind-generated electricity in 2013 would be nearly enough to power New York State. Once China’s ...
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Is green energy our new plastics industry?
If The Graduate were written today, Mr. McGuire’s career tip to Benjamin probably would have been “green,” rather than “plastics.” But it’s likely Benjamin would have responded in the same quizzical way: “Just how do you mean that, sir?” It was difficult to envision the vast number of new products, businesses and careers that would emerge from the plastics industry following World War II. The ...
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Micropower system modeling with Homer
The HOMER Micropower Optimization Model is a computer model developed by the U.S. National Renewable Energy Laboratory (NREL) to assist in the design of micropower systems and to facilitate the comparison of power generation technologies across a wide range of applications. HOMER models a power system's physical behavior and its life-cycle cost, which is the total cost of installing and operating ...
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New energy economy emerging in the United States
As fossil fuel prices rise, as oil insecurity deepens, and as concerns about climate change cast a shadow over the future of coal, a new energy economy is emerging in the United States. The old energy economy, fueled by oil, coal, and natural gas, is being replaced by one powered by wind, solar, and geothermal energy. The transition is moving at a pace and on a scale that we could not have ...
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After Record 2012, World Wind Power Set to Top 300,000 Megawatts in 2013
Even amid policy uncertainty in major wind power markets, wind developers still managed to set a new record for installations in 2012, with 44,000 megawatts of new wind capacity worldwide. With total capacity exceeding 280,000 megawatts, wind farms generate carbon-free electricity in more than 80 countries, 24 of which have at least 1,000 megawatts. At the European level of consumption, the ...
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Aircraft Electrical Power Distribution Systems
Currently, many aircraft systems rely on hydraulic, pneumatic, and other mechanical forms of systems, though this trend is currently changing as newer technological capabilities progress. With the advancing technologies and benefits of the aircraft electrical system, aircraft design is shifting to favor electronic equipment over traditional mechanical systems. Aircraft electrical systems can save ...
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Enhanced Anti-pollution Flashover Coating RTV-II
A functional insulator coating to protect insulators in pollution area, such as industrial area, coastal area and other extreme environmental conditions, also can be used in normal environmental conditions. RTV-II/ PRTV is a one part and new type Room Temperature Vulcanizing RTV silicone rubber coating,also be referred to as High Voltage Insulator Coatings (HVICs) is based on extensive research ...
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Power Outages, Extreme Weather, & Microgrids Explained
Recent wildfires in California and bomb cyclones in New England have led to massive power outages. Here are 10 answers to frequently asked questions about why outages occur, how power lines start wildfires, and alternatives to our aging and unreliable power grid. How do power grids work? Utilities generate electricity at power plants, and then distribute it to our homes and businesses over ...
By Bloom Energy
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World Wind Power Poised to Bounce Back after Slowing in 2013
At the end of 2013, the wind farms installed in more than 85 countries had a combined generating capacity of 318,000 megawatts, which would be enough to meet the residential electricity needs of the European Union’s 506 million people. New data from the Global Wind Energy Council show that wind developers built 35,000 megawatts of new generating capacity worldwide in 2013. This was down ...
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Creating Renewable Energy Integration Solutions
Integrating Renewable Energy Sources Into the Grid How can we respond to demands for both clean energy and greater energy security? By integrating renewable energy sources like wind and solar into the grid. As the power sector faces growing pressure to decarbonize and diversify its resources, we're witnessing a major transition away from traditional fossil fuels. To advance clean air standards ...
By Lumin
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High wire act: electricity transmission infrastructure and its impact on the renewable energy market
Renewable energy (RE)—electricity from wind, solar, and other naturally renewing energy sources— has drawn increasing attention in the quest to reduce greenhouse gases on a scale commensurate with the dictates of climate science. Renewables have the potential to substitute for a significant proportion of the conventional fossil fuels prevalent in today’s electricity generation. ...
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Wind Power Beats Nuclear Again in China
China, the country that is building more nuclear reactors than any other, continued to get more electricity from the wind than from nuclear power plants in 2014. This came despite below-average wind speeds for the year. The electricity generated by China’s wind farms in 2014—16 percent more than the year before—could power more than 110 million Chinese ...
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H∞ controller for stability enhancement in VSC HVDC system with parallel AC lines
In this paper, a state-space model for a voltage source converter based high voltage direct current (VSC HVDC) transmission link in parallel with an AC transmission line is developed using dq-coordinate system. A robust H∞ control design for the converter and inverter of the VSC HVDC system is proposed to maintain the DC voltage and control the active and reactive power at the converter stations. ...
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