Air conditioner refrigeration control method, air conditioner and computer-readable storage medium
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Solution Overview
Problem
Existing air conditioners struggle with precise control of indoor temperature during refrigeration, leading to fluctuations and frequent unit startups due to fixed evaporation temperature settings that fail to adapt to changing indoor capacity requirements.
Innovation Solution
A method that continuously detects indoor and outdoor temperatures to determine instantaneous capacity demand, adjusts the target evaporation temperature, and adjusts compressor frequency accordingly to maintain precise temperature control, avoiding large fluctuations and energy waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the air conditioner controls the evaporation temperature by taking a fixed value or a simple temperature range as a target value, then the control system is simple to operate, but it leads to large fluctuations in indoor temperature and frequent start and stop of the internal unit
Solution Approach 1:
The patent applies dynamics by transitioning from a static fixed evaporation temperature control to a dynamic control system that continuously adjusts the target evaporation temperature based on real-time indoor temperature feedback. The control system dynamically modifies the target value according to the deviation between actual and target indoor temperatures, enabling adaptive response to changing thermal conditions while maintaining operational simplicity through automated feedback mechanisms.
2Device complexity
If the air conditioner keeps operating by controlling the evaporation temperature with a fixed value, then the device complexity is low, but it is difficult to achieve precise control of the indoor temperature
Solution Approach 1:
The patent implements feedback control by continuously monitoring the actual indoor temperature and comparing it with the target indoor temperature. The control system uses this temperature deviation feedback to dynamically adjust the target evaporation temperature, creating a closed-loop control mechanism. This feedback approach enables precise indoor temperature control without significantly increasing device complexity, as the adjustment logic follows a straightforward proportional control strategy based on temperature deviation.
3Use of energy by moving object
If the air conditioner uses a fixed evaporation temperature control method, then the energy consumption is low, but it causes frequent start and stop of the internal unit after over-cooling
Solution Approach 1:
The patent applies preliminary action by proactively adjusting the target evaporation temperature before the indoor temperature reaches the lower limit or causes over-cooling. The control system anticipates potential temperature deviations by continuously monitoring the current indoor temperature and preemptively modifying the evaporation temperature target to prevent extreme conditions. This preliminary adjustment prevents the need for frequent compressor start-stop cycles, improving operational reliability while maintaining energy efficiency.
Data Source
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AI summary
Disclosed in the present application are an air conditioner refrigeration control method, an air conditioner and a computer-readable storage medium. The air conditioner refrigeration control method comprises: after a refrigeration operation, continuously detecting change conditions of indoor and outdoor environment temperatures, so as to obtain an instantaneous capacity requirement of an indoor heat load, and continuously updating the instantaneous capacity requirement over time, such that an air conditioner may determine, in real time, an indoor heat load condition; then determining a target evaporation temperature according to the instantaneous capacity requirement, and also continuously updating the target evaporation temperature over time; and finally, correspondingly adjusting an operation frequency of a compressor according to the target evaporation temperature which continuously changes, such that an actual evaporation temperature may fit the target evaporation temperature, thereby realizing an evaporation temperature being controlled to change along with the change of a real-time heat load, and achieving an effect of performing accurate indoor temperature control.