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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 8. Отображено 8.
28-07-2023 дата публикации

MPC-based electrolytic aluminum load participation power grid frequency modulation control method and system

Номер: CN116505557A
Автор: LIU YANG, LIAO SIYANG, XU JIAN, LI LINGFANG, PI SHANQUAN, SUN PENG, CHEN YIXUAN, XU YONGKUN, ZHANG JIE
Принадлежит:

The invention belongs to the technical field of power system operation and control, and relates to an MPC-based electrolytic aluminum load participation power grid frequency modulation control method and system. Firstly, system output of a sampling interval and a measured value of a system state value are obtained; secondly, predicting an output signal in a prediction time domain, specifically, taking the prediction output as a function of an unknown control signal, taking the existing input, the control signal and the measurement output as known quantities, and performing calculation in a control time domain according to a system model; and finally, on-line optimization is carried out on the objective function of the control signal under a given constraint condition. And obtaining a first control signal control system by using the optimization process, and repeating the optimization process at the next sampling moment until a new measurement value is obtained. Therefore, the method has ...

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Номер записи: 1
30-05-2023 дата публикации

Method and system for determining frequency modulation capacity of submerged arc furnace based on voltage regulation and electrode lifting

Номер: CN116191480A
Автор: CAO RONG, LIAO SIYANG, XU JIAN, LI LINGFANG, PI SHANQUAN, SI DAJUN, CHEN YIYI, CHEN SHUMIN, HE YE
Принадлежит:

The invention relates to the field of industrial load demand side management, in particular to a method and system for determining the frequency modulation capacity of a submerged arc furnace based on voltage regulation and electrode lifting. Comprising the following steps: constructing an equivalent circuit model of the submerged arc furnace; data of the submerged arc furnace are collected in real time, and the value ranges of arc resistance and arc reactance in the equivalent circuit model of the submerged arc furnace under the constant voltage are calculated according to the constructed equivalent circuit model; according to the value ranges of the arc resistance and the arc reactance in the equivalent circuit model, determining a first power boundary when the resistance is changed by adjusting the rising and falling of the electrode through the constant voltage, and a second power boundary when the bus voltage is adjusted; and the adjustable frequency modulation capacity of the submerged ...

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Номер записи: 2
15-08-2023 дата публикации

CIM standard-based pneumoelectric coupling system information model processing method and device

Номер: CN116595794A
Автор: WU YUHUI, XU JIAN, KE DEPING, LIAO SIYANG, JIANG XINXIONG, CHEN RUI, WANG JUN, FENG SHUAISHUAI, PI SHANQUAN
Принадлежит:

The invention relates to a modeling technology, in particular to a method and a device for processing a gas-electric coupling system information model based on a CIM standard, and the method comprises the following steps: for static physical elements in gas-electric coupling system joint optimization, referring to modeling thoughts of a generator set and a circuit; and the IEC 61970 series standard is expanded to form a static physical element sub-information model of the gas-electric coupling system. Then, for dynamic service information in the pneumoelectric coupling system, IEC 61968 series standards are expanded to form a dynamic service sub-information model of the pneumoelectric coupling system; according to the method, the static element composition and dynamic service characteristics of the pneumoelectric coupling system are analyzed, and the information model of the pneumoelectric coupling system is expanded aiming at the problem that the pneumoelectric coupling system lacks an ...

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Номер записи: 3
12-05-2023 дата публикации

Electrolytic copper load adjustable capacity evaluation method based on load characteristic modeling

Номер: CN116109167A
Автор: LI LINGFANG, CHEN YIXUAN, SUN PENG, LIAO SIYANG, DUAN PINGSHENG, XU JIAN, SI DAJUN, HE CONG, WU CHEN, GAO SHANXUE, PI SHANQUAN, YOU GUANGZENG, HE YE, CHEN SHUMIN, HUANG RUN, ZHENG CHAOMING, LIU MINWEI, YU QIANG
Принадлежит:

The invention discloses an electrolytic copper load adjustable capacity evaluation method based on load characteristic modeling, and the method comprises the steps: building an electrolytic copper load controllable characteristic model according to the production process parameters of electrolytic copper, and obtaining the electrical characteristics of an electrolytic copper load; according to actual data of electrolytic copper production, model parameter identification is carried out by adopting a least square method, and electrolytic copper load controllable characteristic model parameters are obtained; and according to the controllable characteristic of the electrolytic copper load, the adjustable capacity range of the electrolytic copper load power is obtained in combination with production safety constraint conditions. According to the method, a load controllable characteristic model of the electrolytic copper is established based on the technological process of the electrolytic copper ...

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Номер записи: 4
06-06-2023 дата публикации

Load power variation calculation method for cutting off electrolytic aluminum rectifier unit

Номер: CN116231663A
Автор: LI LINGFANG, CHEN YIXUAN, LIAO SIYANG, SUN PENG, DUAN PINGSHENG, XU JIAN, GAO SHANXUE, SI DAJUN, WU CHEN, PI SHANQUAN, ZHANG JIE, HE CONG, CHEN YAOWEN, YOU GUANGZENG, CHEN SHUMIN, HE YE, HUANG RUN
Принадлежит:

The invention discloses a load power variable quantity calculation method for removing an electrolytic aluminum rectifier unit. The method comprises the following steps: analyzing a load power-current coupling characteristic of an electrolytic aluminum equivalent topological graph according to the electrolytic aluminum equivalent topological graph; according to the electrolytic aluminum direct current control mode, the variable quantity of the total load direct current after the rectifier unit is cut off is obtained; and according to the electrolytic aluminum load power-current coupling characteristics, obtaining a relationship between a load active power variable quantity and a direct current variable quantity, and obtaining a variable quantity of a load direct current total current. According to the method, the steady-state model for cutting off the multiple parallel rectifier units is established, the variable quantity of the electrolytic aluminum load after the rectifier units are cut ...

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Номер записи: 5
12-05-2023 дата публикации

Electrolytic aluminum FCM clustering method and system considering adjustment capability difference

Номер: CN116108357A
Автор: PENG BINQI, LIAO SIYANG, XU JIAN, LI LINGFANG, PI SHANQUAN, CHEN YIYI, YOU GUANGZENG, CHEN SHUMIN, HE YE
Принадлежит:

The invention belongs to the field of power system operation and control, and mainly relates to an electrolytic aluminum FCM clustering method and system considering adjustment capability difference. Firstly, sample data required by performance evaluation indexes of an electrolytic aluminum energy storage sample i in a time period j participating in frequency modulation are collected, wherein the performance evaluation indexes of electrolytic aluminum energy storage comprise adjustable capacity, adjustment precision and adjustment rate; inputting the adjustable capacity, the adjustment precision and the adjustment rate of the obtained N groups of samples into a target function of an FCM clustering algorithm; and finally, calculating a target function by adopting an FCM clustering algorithm, and outputting a clustering center and a clustering membership matrix. By adopting the FCM clustering analysis method, the distributed electrolytic aluminum energy storage can be classified, and guidance ...

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Номер записи: 6
30-05-2023 дата публикации

Electrolytic aluminum load participation peak regulation control method and system considering auxiliary service income

Номер: CN116191450A
Автор: QIU RISHENG, LIAO SIYANG, XU JIAN, LI LINGFANG, PI SHANQUAN, DUAN PINGSHENG, CHEN YIYI, SI DAJUN, WU CHEN
Принадлежит:

The invention relates to an electrolytic aluminum load participation peak regulation control method and system considering auxiliary service income. The method comprises the following steps: firstly, sequentially constructing an electrolytic aluminum load model and a power fluctuation model thereof, a power system daily load curve model and an electrolytic aluminum load income model; then constructing an objective function based on auxiliary service benefits and constraint conditions according to the model; and finally, collecting real-time data of the electrolytic aluminum load, optimizing the power system according to the constructed objective function and constraint conditions, and outputting corresponding optimal power configuration. By adopting the method, the electricity consumption cost of the electrolytic aluminum load can be effectively reduced, the income of an electrolytic aluminum enterprise is improved, and the total economic benefit of load-network-source is improved.

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Номер записи: 7
16-05-2023 дата публикации

Power grid frequency modulation method and system based on cooperation of electrolytic aluminum and polycrystalline silicon

Номер: CN116131292A
Автор: ZHOU HAOJIE, LIAO SIYANG, XU JIAN, PI SHANQUAN, LI LINGFANG, CHEN YIXUAN, SI DAJUN, HUANG RUN, ZHU JUEPEI
Принадлежит:

The invention discloses a power grid frequency modulation method and system based on cooperation of electrolytic aluminum and polycrystalline silicon, and belongs to the field of power system dispatching and power grid frequency modulation, and the method comprises the steps: obtaining an active power vacancy from a power grid dispatching part; calculating the adjustable capacity of the active power of the electrolytic aluminum load; calculating the adjustable capacity of the active power of the polycrystalline silicon; drawing a curve graph of the cost of the electrolytic aluminum and the polycrystalline silicon and the adjusted power, calculating a derivative value of the curve when the electrolytic aluminum adjusts one power, calculating a derivative value of the curve when the polycrystalline silicon adjusts complementary power, enabling the derivative values to be equal, and solving the adjusted power required by the electrolytic aluminum and the polycrystalline silicon, so as to make ...

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Номер записи: 8