Method and device for optimizing operational control of compressors in multi-couple unit air-conditioning system
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Solution Overview
Problem
Existing multi-connected air conditioner systems face inefficiencies in energy consumption due to methods that prioritize output capacity over energy efficiency ratio, leading to high power consumption and uneven compressor operation, which affects both energy efficiency and compressor lifespan.
Innovation Solution
A method and device for optimizing compressor operation control by obtaining rated output and power consumption information, selecting compressors to meet a desirable output demand threshold while minimizing power consumption, and adjusting compressor power based on operating time to ensure balanced operation and reduced energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If compressors are selected based only on output capacity to meet demand threshold, then output demand is satisfied, but energy consumption increases and energy efficiency ratio deteriorates
Solution Approach 1:
The patent changes the selection parameters from only output capacity to a dual-parameter optimization considering both output capacity and power consumption. The control device calculates and compares different compressor combination schemes, selecting the optimal configuration that meets output demand while minimizing energy consumption.
Solution Approach 2:
The system dynamically adjusts compressor selection and operation based on real-time conditions. The control device continuously monitors output demand and power consumption, adapting the compressor configuration to achieve optimal energy efficiency under varying operating conditions.
2Productivity
If compressors are selected based only on output capacity, then output demand is satisfied, but compressor operation becomes uneven affecting lifespan
Solution Approach 1:
The patent implements periodic rotation of compressor operation. The control device monitors operating hours of each compressor and periodically switches which compressors are active, ensuring more uniform usage distribution across the compressor fleet and extending overall system reliability.
3Adaptability or versatility
If multiple compressors operate concurrently for flexibility, then control flexibility improves, but energy consumption increases
Solution Approach 1:
The system optimizes the number and configuration of operating compressors by changing operational parameters. The control device evaluates different compressor combinations and selects the most energy-efficient configuration that still provides the required output capacity and control flexibility.
Data Source
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AI summary
Disclosed is a method and a device for optimizing the operational control of compressors in a multi-couple unit air-conditioning system. The method comprises: acquiring rated output amount information and rated power consumption amount information of each of the compressors in the multi-couple unit air-conditioning system; acquiring a required output amount demand threshold value; and selecting the compressors and operating frequencies thereof, so that the total of the rated output amounts of the selected compressors is not less than the output amount demand threshold value and the total of the rated power consumption amounts of the selected compressors is the minimum, thus the actual operational energy efficiency ratio of the multi-couple unit air-conditioning system can be improved.