Intelligent Control Method for Actively Ventilated Floors in Data Centers

Abstract

The intelligent control method of the active ventilation floor of the data center, establishes the Markov decision process model for the hot spot problem of the data center rack, and provides three model solving algorithms, including the basic intelligent algorithm, the sample value variant intelligent algorithm and the structural variant intelligent algorithm , respectively as the core of the active ventilation floor control algorithm. The model consists of four parts: system state, behavior, reward and value function. The solution of the model is to continuously select the optimal behavior under a series of system states to maximize the cumulative reward of the system. The active ventilation floor control algorithm, through continuous exploration and Learn the complex relationship between the temperature distribution of the air inlet of the rack and the speed of the active ventilation floor fan. Finally, according to the temperature distribution of the air inlet of the rack, the optimal PWM signal duty cycle value can be generated, and the speed of the active ventilation floor fan can be adjusted to make the temperature of the air inlet of the rack Uniform distribution to alleviate rack hot spots. Compared with other solutions, the present invention has higher universality, easier deployment and more cost-effectiveness.

Description

technical field [0001] The invention belongs to the technical field of automatic control, in particular to an intelligent control method for an active ventilation floor in a data center. Background technique [0002] Rack hot spot refers to the high temperature point at one or several positions of the data center computer room rack where the temperature is significantly higher than that of other positions. Excessive temperature will reduce the efficiency of some servers in the data center, thereby reducing its overall power density, and also reduce its reliability, which is obviously contrary to the needs of the data center. [0003] Using global regulation to alleviate or eliminate rack hotspots, such as increasing the power of the air conditioner in the computer room to provide sufficient cooling air, will inevitably cause most rack areas to be in an overcooled state, causing waste of cooling resources and making the data center always available. Refrigeration energy cons...

AI Technical Summary

Problems solved by technology

Therefore, it is generally difficult to describe the thermal energy efficiency and airflow model of a data center with an analytical model

[0006] Most of the existing research on actively ventilated floors is based on performance modeling and evaluation based on measurement or simulation, and there is no research literature on the problem of actively ventilated floor control.

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