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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 10. Отображено 10.
08-04-2015 дата публикации

Rare-earth ferrite core material

Номер: CN104505224A
Автор: WENG GEPING
Принадлежит:

The invention discloses a rare-earth ferrite core material which comprises a main material and an additive, wherein the main material comprises the following components by mol ratio: 66-69.6mol of Fe2O3, 14.2-21mol of manganese oxide, 15-17.5mol of zinc oxide, 0.4-0.7mol of carborundum, 2-3mol of molybdenum oxide, 0.7-1mol of chromium trioxide and 0.01-0.02mol of lanthanum-cladded carbonyl powder; the additive comprises the following components in proportion by weight of the ferrite core material: 100-200ppm of boron trifluoride, 300-500ppm of tantalum carbide and 800-900ppm of magnesia. The lanthanum-cladded carbonyl powder added into the ferrite core material has high magnetic flux under high frequency and ultrahigh frequency, and the overall performance of a finished product is further improved. The magnetic core material has the characteristics of high magnetic energy product, stable magnetic performance, high mechanical performance and the like.

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07-04-2023 дата публикации

Multi-energy integrated system operation mode control method

Номер: CN115936298A
Принадлежит:

The invention provides an operation mode control method for a multi-element energy integrated system. The operation mode control method comprises the following steps: determining the type and power of energy in the multi-element energy integrated system; according to the type and the power of the energy, an objective function and constraint conditions thereof are set, the objective function comprises the annual cost value, the primary energy consumption and the environmental pollutant cost of the multi-element energy integration system, and the constraint conditions comprise the electric energy balance constraint, the heat energy balance constraint and the cold energy balance constraint; and solving the target function according to the constraint condition. The technical problem of high cost of the current multi-element energy integration system is solved, and the technical effect of improving the economic benefit of the multi-element energy integration system is achieved.

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23-04-2014 дата публикации

Optimal calculation method for thermostabilization quota of power grid

Номер: CN103745077A
Принадлежит:

The invention discloses an optimal calculation method for the thermostabilization quota of a power grid and relates to an automatic power grid control method. The current calculation process of the thermostabilization quota of the fracture surface is tedious and huge in workload, and the correctness of the calculation results is closely relevant to the experience of professionals. The optimal calculation method for the thermostabilization quota of the power grid is characterized in that the calculation method for the thermostabilization quota of the fracture surface is shown as the formulae in the specifications; the formula (1) is a target formula, and the formulae (2), (3) and (4) are constraint formulae. The four formulas form a linear programming problem, and the thermostabilization quota is calculated with a linear programming interior point method. Through the technical scheme, the fracture surface needing to be calculated can be found automatically, the quota optimization result ...

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28-07-2023 дата публикации

Site selection method for distributed power supply in multi-energy integrated power supply system

Номер: CN116502787A
Принадлежит:

The invention discloses a site selection method for a distributed power supply in a multi-energy integrated power supply system, and the method comprises the steps: dividing a functional region in a region, and determining the comprehensive load density in the functional region; measuring the annual actual consumption of each energy consumption in the functional area, and optimizing the energy consumption load weight of the functional area: determining an objective function and constraint conditions, and constructing a site selection model; and solving the site selection model, and determining the optimal site selection of the distributed power supply. According to the method, the problem of less comprehensive consideration of optimal site selection of the distributed power supplies in various functional areas is solved.

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28-04-2023 дата публикации

Novel power system index data processing method and platform

Номер: CN116029613A
Принадлежит:

The invention provides a novel power system index data processing method and platform, and the method comprises the steps: extracting display tree structure information in index construction data, and generating a corresponding first index display tree; node calculation information in the index construction data is extracted, and each information calculation node is configured; extracting weight configuration information in the index construction data, and configuring corresponding node weights for corresponding connection classification nodes and/or information calculation nodes; displaying the first index display tree, counting connection classification nodes and/or information calculation nodes selected by a user in the first index display tree as to-be-calculated nodes, and obtaining a corresponding second index display tree according to all the to-be-calculated nodes; and adjusting weights of nodes in a second index display tree according to a display tree comparison result, and calculating ...

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08-08-2023 дата публикации

Energy carbon diagnosis method, device and equipment of power system and storage medium

Номер: CN116562512A
Принадлежит:

The invention relates to the technical field of electric power systems, in particular to an energy carbon diagnosis method, device and equipment of an electric power system and a storage medium, and the energy carbon diagnosis method of the electric power system comprises the steps: obtaining a carbon emission factor and active power of each injection node of the electric power system; determining a power system carbon emission factor according to a preset carbon emission factor relationship, all the carbon emission factors and the active power; judging whether the power system is a carbon-exceeding power system or not; if yes, determining an emission reduction target of the power system; and selecting at least one high-carbon injection node as an energy-saving transformation injection node according to the emission reduction target of the power system. According to the technical scheme, the problem that carbon emission of the electric power system exceeds the standard is effectively solved ...

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19-05-2023 дата публикации

Optimal sorting method for construction of power supply grids of power distribution network based on space-time compass distribution

Номер: CN116136988A
Принадлежит:

The invention discloses a power distribution network power supply grid construction optimization sorting method based on space-time compass distribution, and the method comprises the steps: S1, dividing a planning construction land into a plurality of power supply grids, and classifying the power supply grids into a plurality of first classification sets according to the function bearing characteristics; s2, classifying the first classification set according to the power consumption characteristics to obtain a plurality of second classification sets; s3, performing planning configuration on the second classification set based on the power utilization level; s4, obtaining a first score table according to the external demand degree corresponding to each power supply grid, obtaining a second score table according to the external demand degree, and constructing a joint score table based on the green channel weight; s5, performing construction goodness grading on each power supply grid according ...

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16-04-2014 дата публикации

Province, city and county integrated operation method of power grid

Номер: CN103730954A
Принадлежит:

The invention discloses a province, city and county integrated operation method of a power grid, and relates to an electric power system dispatching control management method. At present, province models and city models are not consistent, provinces and cities can not interact in model, and model splicing is difficult. The province, city and county integrated operation method of the power grid is characterized in that an electrical equipment dispatching control system comprises a province level dispatching control system and a city level dispatching control system, an electrical equipment library is divided into a plurality of levels according to high-low voltages and comprises a province level power grid equipment database and a city and county level equipment database, the province level power grid equipment database and the city and county level equipment database are matched with the province level dispatching control system and the city level dispatching control system respectively ...

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15-08-2023 дата публикации

Power grid operation control method based on reinforcement learning

Номер: CN116599061A
Принадлежит:

The invention provides a power grid operation control method based on reinforcement learning, and relates to the field of power grid control, and the method comprises the steps: obtaining the initial data of a power grid at the current moment; preprocessing the initial data to obtain operation data of the power grid at the current moment; a control action of the power grid is obtained through a reinforcement learning algorithm; inputting the operation data and the control action of the power grid at the current moment into the power grid environment dynamic model to obtain the state transition of the power grid corresponding to the control action and the reward corresponding to the control action; updating the control action of the power grid through a reinforcement learning algorithm according to the state transition of the power grid and the reward corresponding to the control action; and when the continuous preset times of the reward corresponding to the control action exceed the preset ...

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23-04-2014 дата публикации

Intelligent low-frequency low-voltage load shedding optimization method of power grid

Номер: CN103746367A
Принадлежит:

An intelligent low-frequency low-voltage load shedding optimization method of a power grid relates to an automatic control method of the power grid. At present, a low-frequency load shedding method can not adapt to the characteristics of large scale, dispersity, multilayer, wide geographical distribution and fast transient process of an electric power system, thereby causing the problems that the power-off loss is large and the recovery performance of a system is poor. The intelligent low-frequency low-voltage load shedding optimization method of the power grid of the present invention is characterized in that the target functions of the low-frequency load shedding are that as described in the specification, and the target functions satisfy the conditions as described in the specification: |f0-ftf| Подробнее