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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 7. Отображено 7.
14-07-2023 дата публикации

Novel full-automatic desert crop planting device

Номер: CN116420477A
Автор: FU BING, LU YICHUAN, CHEN YIHAO, CAO ZEDONG, LI JINGYI
Принадлежит:

The invention relates to a novel full-automatic desert crop planting machine, and belongs to the technical field of forestry. The device comprises four parts, namely a moving mechanism, a feeding mechanism, a planting mechanism and a power plate, the feeding mechanism is fixed to the upper end of the moving mechanism frame, and the planting mechanism is located below the feeding mechanism and connected with a portal frame in the middle of the moving mechanism frame. The power plate is located on the upper portion of the front end of the whole device and connected with the moving mechanism frame. The device is an automatic desert environment restoration device integrating the functions of material storage, planting, irrigation and the like. The device is innovated in the aspect of planting, and holes are dug for planting in an air blast mode. A user of the device only needs to select desert crops with appropriate sizes and place the desert crops into the storage box in a classified mode, ...

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Номер записи: 1
01-08-2023 дата публикации

Method and system for analyzing reliability of wind power station

Номер: CN116523349A
Автор: LU YICHUAN, LIU RUIHUA, CHEN ZHENHUA, MA SHULONG, LI JINGJING
Принадлежит:

The invention provides a reliability analysis method and system for a wind power station. The method comprises the following steps: acquiring state data of each wind power set; calculating an available coefficient of each wind turbine generator set based on the state data of each wind turbine generator set; calculating the available coefficient of the wind power plant and the output power of the wind power plant based on the parameters of the wind power plant and the available coefficient of each wind generator set; and based on the available coefficient of the wind power plant and the output power of the wind power plant, selecting a reliability index and performing reliability analysis on the wind power plant to obtain a reliability analysis result. Reliability analysis is carried out on the wind power station hierarchically, fault detection and maintenance are carried out according to the reliability analysis result, the stability of future output power of the wind power station is maintained ...

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Номер записи: 2
18-07-2023 дата публикации

Six-degree-of-freedom double-probe gear measuring device following Abbe principle

Номер: CN116448416A
Автор: WANG TAO, LIU YOUCAI, CHEN YIHAO, LU YICHUAN, REN ZHIGUO, XIE SHENGBING, SHU ZHONGYANG, ZHANG YUE
Принадлежит:

The invention discloses a six-degree-of-freedom double-measuring-head gear measuring device following the Abbe principle, and belongs to the field of precision testing technologies and instruments and gear non-contact measurement. The measuring device comprises a rack unit, a Y-axis moving unit, a Z-axis moving unit, a double-measuring-head measuring unit and a C-axis rotating and fixing unit. Key components are measured in parallel in a symmetrical distribution mode, the left and right tooth surfaces of a gear are measured synchronously, rotation of double measuring heads can achieve the purpose that the angles of the measuring heads can be adjusted only by moving a guide rail multiple times in traditional measurement, and Z-axis moving units are installed on the two sides of a Y-axis moving unit and used for adjusting the positions of the double measuring heads in the tooth width direction. And meanwhile, the grating scales are coaxially mounted on the horizontal extension lines of the ...

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Номер записи: 3
29-08-2023 дата публикации

Intelligent early warning system and method for wind power station

Номер: CN116665420A
Автор: CHEN ZHENHUA, LIU RUIHUA, LU YICHUAN, MA SHULONG, LI JINGJING
Принадлежит:

The invention provides an intelligent early warning system and method for a wind power station, and the system comprises a first obtaining subsystem which is used for obtaining an early warning project of the wind power station; the model generation subsystem is used for generating a target early warning model based on the early warning item; the second acquisition subsystem is used for acquiring power station data and inputting the power station data into the target early warning model to obtain an early warning result; the early warning subsystem is used for carrying out early warning when the early warning result is not null; and the early warning model correction subsystem is used for determining early warning deviation data according to the confirmation state information of the early warning item and correcting the target early warning model in real time according to the early warning deviation data. According to the intelligent early warning system and method for the wind power station ...

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Номер записи: 4
13-10-2010 дата публикации

Method for cooperatively controlling reactive voltage of wind farm

Номер: CN0101860044A
Автор: CAO CHEN, LEI XIANZHANG, LU RUNDONG, LU YICHUAN, LV ZHILAI, WANG JIONG, WU XIAOMING, XUE FEI, ZHANG CONG, ZHU YING, CHEN CAO, XIANZHANG LEI, RUNDONG LU, YICHUAN LU, ZHILAI LV, JIONG WANG, XIAOMING WU, FEI XUE, CONG ZHANG, YING ZHU
Принадлежит:

The invention relates to a method for cooperatively controlling reactive voltage of a wind farm. In the method, a reference voltage value of a busbar is calculated through a logic link according to measured active power, reactive power and a given reference value of reactive power, and the reactive power of each wind turbine is regulated in real-time based on the reference voltage value. The method can cooperatively control reactive output of each wind turbine to enable reactive output of a grid-connection point of a wind farm to meet the variation of system loads so as to restrain the fluctuation of busbar voltage caused by the variation of surrounding loads as well as resist voltage fall of a control point caused by faults of a local electric network, thereby maintaining stable voltage of the wind farm accessing a regional power grid.

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Номер записи: 5
13-10-2010 дата публикации

Method for cooperatively controlling active power of wind farm

Номер: CN0101860042A
Автор: CHEN CAO, XIANZHANG LEI, RUNDONG LU, YICHUAN LU, ZHILAI LV, JIONG WANG, XIAOMING WU, FEI XUE, CONG ZHANG, YING ZHU, CAO CHEN, LEI XIANZHANG, LU RUNDONG, LU YICHUAN, LV ZHILAI, WANG JIONG, WU XIAOMING, XUE FEI, ZHANG CONG, ZHU YING
Принадлежит:

The invention relates to a method for cooperatively controlling active power of a wind farm, comprising the following steps of: obtaining an excess value of active power fluctuation and taking the excess value and a power excess trend as the input and output excess deviation values of a logic controller; then taking the difference between the excess value and a power frequency deviation value as the input of a PI controller; and finally outputting an active reference value of a motor of a wind farm. In the method, the maximum wind power utilization of a single machine is unlinked by utilizing a control method and inserted into the integral cooperative control of the wind farm, so that the wind turbine has an adjustable allowance, and load fluctuation of a power grid caused by unstable wine energy is balanced to the greatest extent; the balancing can release more space of the power grid, and the effective load transmitting capability is improved. Because active power modulation calculation ...

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Номер записи: 6
18-11-2015 дата публикации

Multi -functional boring means of heavy -calibre basement rock core drill

Номер: CN0204782881U
Автор: ZHANG TAO, MA MING, ZENG LIXIN, XIAO DONGSHUN, ZHANG HUI, ZHOU ZHIGANG, WANG CHUNJIANG, WANG HONGQING, DING YE, WANG CHUANMING, ZHANG MING, YUAN HAIPING, LU YICHUAN, HUANG YANPU
Принадлежит:

The utility model relates to a multi -functional boring means of heavy -calibre basement rock core drill, including the drilling rod, still include the sediment tube, lead positive ring sum weight, the sediment tube, lead positive ring sum weight fixed the setting on the drilling rod respectively, the sediment tube setting lead just encircle the top, the below of just encircling is being led in the weight setting, the sediment tube by last hourglass empty tray, down flat chassis, half preceding round cover plate, later half round cover plate, bolt, guide and bolt seat constitute, through this technical scheme, with three tool box together, forms a technology and makes up, has improved and has crept into efficiency, alleviateed intensity of labour, guaranteed the drilling perpendicularity, use this instrument handling ease, simple structure, with low costs.

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Номер записи: 7