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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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Применить Всего найдено 2. Отображено 2.
09-05-2023 дата публикации

Cascade utilization battery mounting clamp, structure and battery module

Номер: CN116093518A
Автор: ZHENG JIAQI, LI YAN, CAO CHENGJIE, FAN YIFEI, HE DARUI, TIAN FANGYUAN
Принадлежит:

The invention provides an echelon utilization battery mounting clamp, an echelon utilization battery mounting structure and a battery module. The echelon utilization battery mounting clamp comprises a telescopic cross rod, a clamp patch and a longitudinal fixing rod, the two clamp patches are connected to the two ends of the telescopic transverse rod respectively. The two ends of the telescopic cross rod are further provided with top fixing holes used for penetrating through the longitudinal fixing rods to fix the battery pack. The clamp patch is a right-angle patch and comprises a first plane used for being tightly attached to the side face of the top of the battery pack and a second plane used for being tightly attached to the plane of the top of the battery pack. At least one pressing tongue is arranged on the second plane of the clamp patch; and the pressing tongue is used for forming an accommodating space for accommodating a battery temperature management assembly with the top plane ...

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Номер записи: 1
08-02-2018 дата публикации

VOLTAGE INTEGRAL-BASED METHOD FOR DETERMINING SATURATION OF TRANSFORMER CORE

Номер: WO2018023909A1
Автор: ZHENG, Yuping, HE, Darui, PAN, Shuyan
Принадлежит:

A voltage integral-based method for determining saturation of a transformer core. For each phase voltage on one side of a transformer, when a voltage variation exceeds a set threshold value, a sudden change of the state of the transformer is determined, the calculation of a half-cycle integral S1(t) of an absolute value of a voltage begins after said sudden voltage state change; an absolute value S2(t) of an integral of a half-cycle voltage variation which begins at the moment of said sudden voltage state change is calculated; assuming that, if any phase satisfies S(t)＞S0, then determining that the transformer core is saturated, wherein: Se represents a per-unit baseline value, and S0 is a transformer core saturation threshold value. The method focuses on the root causes that generate a magnetizing inrush current, and the magnetizing inrush currents caused by voltage changes, such as a transformer non-load closing magnetizing inrush current, a magnetizing inrush current caused by voltage ...

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Номер записи: 2