Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 5. Отображено 5.
12-09-2012 дата публикации

Maintenance system of power equipment based on risk assessment

Номер: CN102663537A
Автор: Xu Liangzhu, Wu Jianguo, Chen Rong, Zhu Yong, Jiang Youquan, Yang Changfu, Lan Jian, Liu Song, Zhang Yebiao, Liu Hongchao, Gao Lingchao, Chen Qingshui
Принадлежит:

The present invention discloses a maintenance system of a piece of power equipment based on risk assessment, comprising: that a data acquisition unit monitors original data of the power equipment and the acquired original data is saved to a database server; a data processing unit processes the acquired original data to generate a processing result; an application service unit allows a user to access the original data and interactively operates the processing result; and the user determines whether the power equipment needs to be maintained based on the processing result and the original data. Using the system in the invention, blindness of the equipment maintenance can be dramatically reduced and insufficient or over maintenance can be avoided, and then a principle that what needs to be maintained should be maintained and what should be maintained needs good maintenance of the equipment can be realized, while a lot of maintenance cost can be saved, safe and stable operation of the equipment ...

Подробнее
Номер записи: 1
08-08-2012 дата публикации

Quantitative scoring method of power equipment state

Номер: CN102629364A
Автор: Xu Liangzhu, Wu Jianguo, Chen Rong, Zhu Yong, Jiang Youquan, Yang Changfu, Lan Jian, Liu Song, Zhang Yebiao, Liu Hongchao, Gao Lingchao, Chen Qingshui
Принадлежит:

The invention discloses a quantitative scoring method of a power equipment state. The method comprises the following steps of: collecting parameters of power equipment state quantity; calculating an equipment state quantity score according to a scoring rule made in advance; according to a reasonable score set in the scoring rule, determining whether the equipment is normal or not. According to the invention, state evaluation in a state overhaul field is refined, being different from a general overhaul system, the method of the invention focuses on equipment state scoring, predication assessment and risk control, and overhaul personnel and pretesting personnel are helped to grasp the present running information of the equipment in real time. By using the method of the present invention, blindness in the process of equipment maintenance can be obviously reduced, maintenance deficiency or excess is avoided, at the same time, a large amount of repair cost is saved, the safe and stable operation ...

Подробнее
Номер записи: 2
25-07-2012 дата публикации

Urban medium-voltage power distribution network closed-loop power supply system based on annular net rack

Номер: CN102611107A
Автор: Xu Liangzhu, Sun Yuanzhang, Shen Yangwu, Wu Zhenhui, Lin Chao, Peng Xiaotao, Lu Zhouxun, Zhu Yong, Jiang Youquan, Xiao Jianhua, Wang Angao
Принадлежит:

The invention discloses an urban medium-voltage power distribution network closed-loop power supply system based on an annular net rack, solving problem that a radiation-type power distribution network rack has a weak structure, is planned disorderly and has low reliability and poor power quality, and the problem of an electromagnetic looped network such as a short circuit current is overlarge if power supply areas of different transformer substations of a typical annular power distribution network run in a closed loop manner. Due to an annular structure formed by hand-in-hand connection between opening transformer substations and closed transformer substations, transformers of the transformer substations run in columns, and 10kV opening transformer substations and closed transformer substations run in sections, thereby forming a closed-loop power supply mode of an annular net rack in which an opening transformer substation I main body and an opening transformer substation II main body ...

Подробнее
Номер записи: 3
21-08-2013 дата публикации

Microwave power transistor with double emitter regions and double poles and preparation method thereof

Номер: CN103258737A
Автор: Liu Hongjun, Jiang Youquan
Принадлежит:

The invention discloses a microwave power transistor with double emitter regions and double poles and a preparation method thereof. The microwave power transistor with the double emitter regions and the double poles is characterized in that the microwave power transistor is of a crossing finger comb-shaped structure, and two emitter regions are arranged below each single finger emitter. The microwave power transistor with the double emitter regions and the double poles has the advantages that thermal overlapping area is reduced and heat radiating area is enlarged; the breakover path of a current is widened and breakover resistance is reduced; the thermal performance and the reliability of the transistor can be improved due to the improvement of heat radiating; working efficiency of the transistor can be improved due to the reduction of the breakover resistance. The microwave power transistor with the double emitter regions and the double poles manufactured with the preparation method has ...

Подробнее
Номер записи: 4
25-07-2012 дата публикации

Maximum load supply capability evaluation method of medium-voltage power distribution network for loop power supply

Номер: CN102611106A
Автор: Sun Yuanzhang, Xu Liangzhu, Lu Zhouxun, Zhu Yong, Shen Yangwu, Peng Xiaotao, Wu Zhenhui, Lin Chao, Jiang Youquan, Xiao Jianhua
Принадлежит:

The invention provides a maximum load supply capability evaluation method of a medium-voltage power distribution network for loop power supply. The method comprises determining the regression model of a multivariable nonlinear regression curve representing the quantitative relationship between the output power flow of a substation and a leading switching station based on a power flow tracing theory; establishing a maximum load supply capability target function of the medium-voltage power distribution network; and resolving of the target function by sequential quadratic programming method while considering the requirement of N-1 criterion of power supply security for urban power grid and selecting the network power balance, the circuit thermal stability limit, the bus voltage, and the power of a power output node and a load node as the constraint conditions to obtain the optimum solution, i.e. the maximum load supply capability of the medium-voltage power distribution network for loop power ...

Подробнее
Номер записи: 5