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 3. Отображено 3.
19-09-2012 дата публикации

System and method for calculating icing thickness of power transmission line

Номер: CN102679935A
Автор: Xu Liangzhu, Wu Jianguo, Lu Zhouxun, Zhu Yong, Yang Bin, Yang Changfu, Liu Yong, Wu Jie, Yang Jian
Принадлежит:

The invention discloses a system for calculating the icing thickness of power transmission lines. The system comprises a monitoring device, a server and a wireless transceiver device, wherein the monitoring device is arranged at the power transmission line; the server is arranged at a monitoring room; the wireless transceiver device is arranged at the power transmission line and is matched with the monitoring room also arranged at the power transmission line for use; the server comprises a data rough processing module and an artificial neural network module; the data rough processing module comprises an information completeness processing unit, a data discretization processing unit and an attribute reduction processing unit; and the artificial neural network module comprises an application model unit and a model algorithm optimizing unit. In addition, the invention also discloses a method for calculating the icing thickness of power transmission lines. According to the system and the method ...

Подробнее
Номер записи: 1
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: 2
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: 3