Intelligent efficient machine room energy-saving algorithm model of central air-conditioning system

Abstract

The invention is suitable for the technical field of machine room energy saving, and provides an intelligent efficient machine room energy-saving algorithm model of a central air-conditioning system, comprising: an energy consumption model of a water chilling unit, the energy consumption model of the water chilling unit being used for calculating energy efficiency ratios of the water chilling unit under different operation conditions; an energy consumption performance model of the chilled water pump, wherein the energy consumption performance model of the chilled water pump is used for calculating the energy consumption of the chilled water pump under different operation conditions; and a heat and humidity exchange model of the cooling tower, wherein the heat and humidity exchange model of the cooling tower is used for calculating operation parameters of the cooling tower under different operation conditions. Algorithm models are established for related equipment such as a water chilling unit, a chilled water pump, a cooling water pump and a cooling tower of each refrigerating machine room, manual starting and stopping are conducted on a remote interface, state parameters are monitored, the frequency is automatically controlled according to a chilled water temperature difference set value obtained through an optimization algorithm, the number of the equipment is automatically increased and decreased, and it can be guaranteed that the whole system is safe, reliable and capable of saving energy.

Description

An energy-saving algorithm model for an intelligent and efficient computer room of a central air-conditioning system technical field The invention belongs to the technical field of energy saving in computer room, and in particular relates to a kind of intelligent and efficient energy saving in computer room of central air-conditioning system Algorithmic model. Background technique [0002] In the energy consumption of the entire building, the energy consumption of the central air-conditioning system occupies a large proportion, generally about 40 to 50%. In the energy consumption of the air conditioning system, the refrigeration room equipment (including chillers, chilled water pumps, cooling water pumps and cooling towers) accounts for about 60% to 70%. In an office building with electric cooling, air-conditioning cold source (freezer room)-chiller, refrigeration and cooling The annual electricity consumption of water pump and cooling tower accounts for 30-35% of the...

AI Technical Summary

Problems solved by technology

[0004] At present, traditional machine room group control: separate closed-loop control of chillers, water pumps, and cooling towers, only realizes simple frequency conversion and chiller loading and unloading control, which will inevitably reduce the effect of energy consumption control

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