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Ice storage air conditioning system, control method and device thereof and controller

An ice-storage air conditioner and control method technology, applied in air-conditioning systems, space heating and ventilation, heating methods, etc., can solve problems such as insufficient ice storage capacity, low utilization rate of cooling capacity, and inability to effectively control the input of ice storage cooling capacity , to achieve the effect of energy saving, emission reduction and rationalized cooling

Active Publication Date: 2021-04-16
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides an ice-storage air-conditioning system and its control method, device, and controller to solve the problem that the current ice-storage air-conditioning technology is not yet mature in utilization, for example, there is insufficient ice storage to supply building cooling capacity around the clock, and cooling capacity utilization Unreasonable, low utilization rate of cooling capacity, system cannot effectively control the input of ice storage cooling capacity, etc.

Method used

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  • Ice storage air conditioning system, control method and device thereof and controller
  • Ice storage air conditioning system, control method and device thereof and controller
  • Ice storage air conditioning system, control method and device thereof and controller

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Embodiment

[0058] refer to figure 2 , figure 2 It is a schematic flowchart of a method for controlling an ice-storage air-conditioning system provided in an embodiment of the present application. Such as figure 2 As shown, the method at least includes the following steps:

[0059] S201: Determine the total cooling capacity of the ice storage air-conditioning system;

[0060] Specifically, since the cooling of the ice storage air-conditioning system is to meet the cooling load demand of the building, the total cooling capacity of the ice storage air-conditioning system can be determined according to the cooling load of the building cooled by the ice storage air-conditioning system, and the cooling load of the building It can be determined based on relevant architectural design specifications, which is a common method and will not be described in detail here.

[0061] S202: Determine respective initial cooling shares of the refrigerating unit and the ice storage tank based on the to...

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Abstract

The invention relates to an ice storage air conditioning system, a control method and device thereof and a controller. The air conditioning system comprises a refrigerating unit and an ice storage pool. The method comprises the steps that the total cooling capacity of the air conditioning system and the initial cooling share of the refrigerating unit and the initial cooling share of the ice storage pool are determined, and the air conditioning system is controlled to operate; after every first preset time, the current total cooling capacity of the air conditioning system and the current cooling share of the refrigerating unit are determined, and whether the absolute value of the difference value between the current cooling share and the initial cooling share of the refrigerating unit is smaller than or equal to a preset value or not is judged; and if not, the absolute value of the difference value between the current cold supply share and the initial cold supply share of the refrigerating unit is smaller than or equal to the preset value through adjustment. By means of the arrangement, the ice storage air conditioning system can utilize the cooling capacity of the ice storage pool to the maximum extent, reasonably and freely according to needs, meanwhile, efficient utilization of peak load shifting of electric energy is achieved, and more reasonable cooling, working condition maintenance, energy conservation and emission reduction of the system are facilitated.

Description

technical field [0001] The present application relates to the technical field of ice-storage air-conditioning, and in particular to an ice-storage air-conditioning system and its control method, device and controller. Background technique [0002] Due to the rapid growth of power consumption in my country and the shortage of peak power, how to transfer peak power demand, "shift peaks and fill valleys", balance power supply, and improve the effective use of power energy has become a problem that many countries attach importance to solving. [0003] Based on this, the application of ice-storage air-conditioning technology in my country will become an irreversible trend. Ice-storage air-conditioning technology refers to using the low-load power at night to make ice and store it in the ice storage device. In order to reduce the power load of air-conditioning and the installed capacity of air-conditioning system during peak hours of the power grid. It can effectively utilize low-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/46F24F11/61F24F11/64F24F11/70F24F5/00
CPCY02E60/14
Inventor 王升何玉雪隋红亮刘昊吴宁波
Owner GREE ELECTRIC APPLIANCES INC
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