Central air-conditioning system parallel-connection refrigerator load optimal distribution method

A technology of central air-conditioning system and distribution method, which is applied in the field of optimal distribution of loads of parallel chillers in central air-conditioning systems, and can solve problems such as large energy consumption

Active Publication Date: 2020-07-14
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the purpose of the present invention is to provide a method for optimizing the load distribution of parallel chillers in a central air-conditioning system. Under the condition of ensuring safety, reliability and cooling capacity requ

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Central air-conditioning system parallel-connection refrigerator load optimal distribution method
  • Central air-conditioning system parallel-connection refrigerator load optimal distribution method
  • Central air-conditioning system parallel-connection refrigerator load optimal distribution method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0155] Example 1 takes the three chiller system as the research object. The three chiller system includes three chillers with a cooling capacity of 800RT. The three chillers form a distributed architecture network. The performance parameters of the three chillers are shown in Table 1. .

[0156] Table 1 Embodiment 1 The performance parameters of each chiller in the parallel chiller system

[0157] Cold machine number a b c d Rated cooling capacity / RT 1 100.95 818.61 -973.43 788.55 800 2 66.598 606.34 -380.58 275.95 800 3 130.09 304.5 14.377 99.8 800

[0158] Assuming that the total demand on the user side is respectively 40% and 50% of the total cooling capacity of the three chiller systems, that is, 960RT and 1200RT, a method for optimizing the load distribution of parallel chillers in a central air-conditioning system according to the present invention specifically includes as follows:

[0159] The objective function of this o...

Embodiment 2

[0177] Embodiment 2 takes six chiller systems of a hotel in Taipei as the research object. The six chiller chiller system consists of four chillers with a cooling capacity of 1280RT and two chillers with a cooling capacity of 1250RT. The specific performance parameters of each chiller as shown in Table 3.

[0178] Table 3 Embodiment 2 The performance parameters of each chiller in the parallel chiller system

[0179]

[0180]

[0181] Assuming that the total demand on the user side is 70% and 75% of the total cooling capacity of the six chiller systems respectively, that is, 5334RT and 5717RT, a method for optimizing the load distribution of parallel chillers in a central air-conditioning system according to the present invention specifically includes as follows:

[0182] The objective function of this optimization is:

[0183] min(W total )

[0184] s.t.0.3≤PLR i ≤1 or PLR i =0

[0185]

[0186] Wherein, N is equal to 6 respectively.

[0187] Specific steps ar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a central air-conditioning system parallel-connection refrigerator load optimal distribution method. A plurality of refrigerators of a central air-conditioning system are respectively provided with a distributed controller and are in communication connection to form a distributed architecture computing network; when a certain distributed controller initiates calculation task information, other distributed controllers perform calculation according to the calculation task information after receiving the transmitted calculation task information; a calculation result is transmitted to a distributed controller initiating calculation task information, and calculation result data are summarized; and if the calculation result data meets the convergence condition, the overall distribution adjustment is completed. Through cooperation of the distributed controllers of all the refrigerators, the idea of distributed parallel computing is adopted, and the adjustment task of load distribution optimization of the parallel refrigerator system is completed; and under the condition that safety, reliability and refrigerating capacity requirements are guaranteed, starting, stopping and load distribution of the refrigerating machine are reasonably controlled in real time according to changes of the external cold load demand, and power consumption of the refrigerating machineis effectively reduced.

Description

technical field [0001] The invention relates to the technical field of air-conditioning and refrigeration, in particular to a method for optimizing load distribution of parallel refrigerators in a central air-conditioning system. Background technique [0002] In recent years, with the rapid development of my country's economy, people's living standards have been further improved, and the construction area of ​​public buildings such as shopping malls, hotels, and cultural and sports venues for various public activities has increased exponentially. The proportion of large public buildings in newly-built public buildings continues to rise, and existing public buildings have been overhauled and upgraded to large public buildings one after another, resulting in a sharp increase in the energy consumption of large public buildings. Therefore, it is very necessary to study the energy efficiency of large public buildings. [0003] In large public buildings, the energy consumption of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06G06N3/00F24F11/47
CPCG06Q10/04G06Q10/0631G06Q50/06G06N3/006F24F11/47
Inventor 于军琪高之坤陈时羽赵安军赵泽华焦森刘奇特
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap