Temperature control method, device and equipment for liquid nitrogen instant freezer and medium

The invention relates to a liquid nitrogen instant freezer temperature control method, device and equipment and a medium, and the method comprises the steps that on the basis of a pre-trained liquid nitrogen regulating valve control model in an MPC controller, according to the real-time temperature...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WU WEIBIN, MA KAICHENG, ZHENG ZEYONG, LUO QING, SHANG SIWEI, CHENG XIAOJIN, YU BAIQING, LUO YUANQIANG, CHEN YINGMEI, HUANG WENQUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS HEAT PUMP SYSTEMS HEATING ICE-BOXES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION OR COOLING REFRIGERATORS WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a liquid nitrogen instant freezer temperature control method, device and equipment and a medium, and the method comprises the steps that on the basis of a pre-trained liquid nitrogen regulating valve control model in an MPC controller, according to the real-time temperature of each fixed point in the current time step and the opening degree of a liquid nitrogen regulating valve, the real-time temperature of each fixed point is calculated; predicting the temperature of each fixed point in the next time step and the opening degree of the corresponding liquid nitrogen regulating valve; the MPC controller is adopted to optimize the temperature of the next time step and the opening degree of the corresponding liquid nitrogen adjusting valve according to the real-time temperature of the current time step and the opening degree of the liquid nitrogen adjusting valve so as to determine the optimal valve opening degree; and a target value corresponding to the optimal valve opening degree is se