System simulating emergency in electric power system faster than in real time created at TPU
2021-04-08
(Press-News.org) Scientists of Tomsk Polytechnic University have created a decision support system (DSS) for dispatching personnel of electric power systems (EPS). The system allows dispatchers to quickly test their actions on the management of the EPS, to control and evaluate their consequences using a digital simulator in a regime faster than real time.
The article devoted to the research work is published in the IEEE Transactions on Power Systems (Q1, IF 6.074) academic journal, one of the most peer-reviewed journals in energy, energy technology, electrical engineering and electronics industries.
"An EPS is some kind of a living organism within that changes are permanently and continually taking place. In order this organism functionates properly and without any failures, it must be controlled. This extremely complicated task is carried out by dispatching personnel. Moreover, wrong or belated actions of a dispatcher can exacerbate an emergency," Aleksey Suvorov, Associate Professor of the TPU Division for Power and Electrical Engineering, one of the authors of the article, says.
He adds that the DSS is a continuation of the research work for a multiprocessor system for real-time simulation of the EPS. For this development, a research team of young scientists from the TPU Research Laboratory for Power Grid Simulation, including Mikhail Andreev, Nikolay Ruban, Aleksey Suvorov and Ruslan Ufa, was conferred with the Russian Federation Government Prize in Science and Technology for Young Scientists. The comprehensive simulation system allows obtaining a huge volume of information on the operation of the EPS. The data are kept on the server. The DSS operates with these data.
"A DSS has been created based on a hybrid approach to EPS simulation that was developed by Alexander Gusev, Professor of the TPU Division for Power and Electrical Engineering. Its core lies in the combination of existing simulation techniques (analog, physical and digital) and the use of the best properties and capabilities of each of the techniques. Using a DSS, methodically accurate simulation is implemented in real time of the EPS of any scale and complication. The system is actually an alternative to a real EPS, its digital simulator. Furthermore, due to the properties of a hybrid approach, a simulation capability faster than in real time implemented. On the current element base, it was possible to speed up by five folds. It allows the operator to test several case scenarios, to choose the most effective one, to adjust a regime state and only after that to act in a real EPS, reducing a possible negative effect from his actions," the scientist explains.
All components of the system, including special software, are developed at TPU. The system effectiveness was tested at a real EPS of the Tomsk Region.
"The DSS simultaneously operates with the EPS and collects data from the operative-information complex (OIC). The OIC monitors a regime of the EPS, collects the data about voltage, power and controls how the system operates. To test the system, we created a special emulator simulated the OIC. Using the emulator, an emergency visible for the dispatcher and the system was simulated. The DSS software contains all required algorithms and case scenarios. The dispatchers possess very strict regulatory directions regarding what actions must be taken in any situation. According to the occurred emergency, the DSS processes the incoming information and suggests patterns based on the direction. Besides, due to the fast simulation, the dispatcher possesses more time to control and take the rightest pattern," Aleksey Suvorov elaborates.
The effectiveness of the system operation was also experimentally tested jointly with scientists from the Indian Institutes of Technology (Roorkee).
INFORMATION:
[Attachments] See images for this press release:
ELSE PRESS RELEASES FROM THIS DATE:
2021-04-08
Fabrication of 3D freeform structures of thermoplastics involving overhang (non-anchored) structures is successfully showcased by fused deposition modeling (FDM) and direct ink writing (DIW), yet limited in terms of applicable materials and conditions of printing. 3D printing of freeform structures requires support materials that enable printing of thermoplastics in non-anchored locations.
In order to address the difficulty of freeform fabrication via extrusion-based printing, the use of microparticulate gels as embedding media has been widely explored. Such methods are collectively termed embedded 3D printing (e3DP).
In these demonstrations, ...
2021-04-08
Researchers from the University of Hawai'i (UH) at Mānoa, University of British Columbia (UBC), San Diego State University (SDSU), and elsewhere have created 3D molecular maps of bacteria, viruses, and biochemicals across coral colonies along with their interacting organisms such as algae and other competing corals. This allowed the team to discover specific microbial and viral functions that appear to be key components of the coral microbiome.
The study, published recently in Frontiers of Marine Science, used a novel combination of state-of-the-art molecular methods with cutting-edge 3D imaging techniques to create high-resolution molecular maps on coral reef organisms.
Healthy coral reefs ...
2021-04-08
Forecasts aren't just for the weather. Scientists can use weather radar and related technology to chart the journeys of billions of migratory birds, which can help protect these global travelers from a growing array of threats.
In a new breakthrough on this front, a team led by Colorado State University used millions of observations from 143 weather surveillance radars to evaluate a forecasting system for nocturnal bird migration in the United States.
Using these tools, the team discovered that a mere 10 nights of action are required to reduce risk to 50% of avian migrants passing over a ...
2021-04-08
LOS ALAMOS, N.M., April 6, 2021--In the vast Colorado River basin, climate change is driving extreme, interconnected events among earth-system elements such as weather and water. These events are becoming both more frequent and more intense and are best studied together, rather than in isolation, according to new research.
"We found that concurrent extreme hydroclimate events, such as high temperatures and unseasonable rain that quickly melt mountain snowpack to cause downstream floods, are projected to increase and intensify within several critical regions of the Colorado ...
2021-04-08
Okazaki, Japan -mm dd, 2021--Many people with Parkinson's disease develop abnormal movements called L-DOPA induced dyskinesia, a major side effect of long-term medication. The mechanism underlying this side effect has been unknown. In this study, researchers have revealed relation between changes of neuronal activities and dyskinesia.
Parkinson's disease (PD) is the common age-related neurological disorder affecting 7 - 10 million people worldwide. It is caused by loss of dopaminergic neurons in the brain region called the substantia nigra, and induces difficulty in execution of movements (akinesia), muscle stiffness (rigidity), walking difficulty, tremorous hand movements ...
2021-04-08
Details:
According to a linguistic survey report, people often confuse the pronunciation of /hi/ with that of /si/ in the dialect of Tokyo and the Tohoku region of Japan. A team of researchers at Toyohashi University of Technology and the National Institute for Japanese Language and Linguistics (NINJAL) found that the confusion is resulted from the articulation of the tongue varying in the transverse direction while the tongue tip is positioned at the same place of articulation. The study was published online in the Journal of the Acoustical Society of America on April 7, 2021.
In the Japanese language, the consonant /s/ followed by vowel /i/ is distinct ...
2021-04-08
Osaka, Japan - Catalysts are crucial to making industrial processes viable. However, many of the non-precious metal catalysts used for synthesis have low activity, are difficult to handle, and/or require harsh reaction conditions. Osaka University researchers have developed a single-crystal cobalt phosphide nanorod catalyst that overcomes several of the limitations of conventional cobalt catalysts. Their findings were published in JACS Au.
Reductive amination is an important chemical reaction that is used to convert carbonyl compounds into amines. It is a key step in the production of many materials such as polymers, dyes, and pharmaceuticals, and is attractive because the reagents are cost effective and widely available, ...
2021-04-08
An adaptive cognitive training program could help treat attention and working memory difficulties in children with sickle cell disease (SCD), a new study published in the of Journal of Pediatric Psychology shows.
These neurocognitive difficulties have practical implications for the 100,000 individuals in the U.S. with SCD, as 20-40% of youth with SCD repeat a grade in school and fewer than half of adults with SCD are employed. Interventions to prevent and treat neurocognitive difficulties caused by SCD have the potential to significantly improve academic outcomes, vocational attainment and quality of life.
The study, led by Steven Hardy, Ph.D., director of Psychology and Patient Care Services at the Center for Cancer and Blood Disorders at Children's ...
2021-04-08
Extremely structured electromagnetic pulse carries not only the ultimate human dream of ultra-fast and ultra-intense energy extraction but also numerous extraordinary fundamental physical effects. As a traditional viewpoint, Electromagnetic pulses are typically treated as space-time (or space-frequency) separable solutions of Maxwell's equations, where spatial and temporal (spectral) dependence can be treated separately. However, recent advances in structured light and topological optics have highlighted the nontrivial wave-matter interactions of pulses with complex space-time separability (STNS), as well as their potential for energy and information transfer.
Recently, a research ...
2021-04-08
Stem cell research has allowed medicine to go places that were once science fiction. Using stem cells, scientists have manufactured heart cells, brain cells and other cell types that they are now transplanting into patients as a form of cell therapy. Eventually, the field anticipates the same will be possible with organs. A new paper written by a group of international researchers led by Tsutomu Sawai, an assistant professor at the Kyoto University Institute for the Advanced Study of Human Biology (ASHBi) and the Center for iPS Cell Research and Application (CiRA), explains the future ethical implications of this research ...
LAST 30 PRESS RELEASES:
[Press-News.org] System simulating emergency in electric power system faster than in real time created at TPU
