Variable Air Volume Terminal Control for Data Center Cabinet Cooling
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Solution Overview
Problem
Existing methods for controlling energy saving in communication machine rooms focus on air flow distribution designs and layouts, failing to regulate air volume according to the actual workload of the machine room.
Innovation Solution
A method and device that determine the temperature difference between the current and preset temperature values of cabinets, using a variable universe adaptive fuzzy PID control method to adjust the opening degree of air valves in variable air volume terminal devices, thereby regulating the air volume required by each cabinet and optimizing the total air volume in the machine room.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air volume is continuously supplied to ensure environmental parameters, then temperature stability is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic air volume regulation by adjusting the opening degree of air valves based on real-time temperature differences. The system transitions from static continuous air supply to dynamic variable air supply, where the air volume is adjusted according to actual cooling needs, thereby reducing power consumption while maintaining temperature stability within acceptable ranges.
Solution Approach 2:
The system changes the parameter of air volume from fixed to variable by controlling the opening degree of air valves. By adjusting this parameter dynamically based on temperature feedback, the system optimizes the balance between temperature stability and energy consumption, avoiding unnecessary full-capacity operation.
2Ease of operation
If fixed air volume is supplied, then temperature control is simplified, but adaptability to workload changes deteriorates
Solution Approach 1:
The patent implements a feedback control mechanism where temperature sensors continuously monitor the actual temperature in cabinet regions, compare it with the preset temperature, and use the temperature difference to adjust the air valve opening degree. This closed-loop feedback system automatically adapts to workload changes while maintaining relatively simple operation through automated control.
3Reliability
If air volume is increased to meet peak demand, then temperature stability is improved, but energy waste increases during low workload
Solution Approach 1:
The system applies partial action by supplying only the necessary air volume required for current cooling demands rather than continuously supplying maximum air volume. The air valve opening degree is adjusted to provide just enough cooling capacity, avoiding excessive air supply and associated energy waste during periods of low workload while maintaining temperature control reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for real-time adjustment of air volume based on actual demand, reducing energy consumption by effectively managing temperature differences and optimizing fan speed, thus addressing the limitations of prior art in regulating air volume according to workload.
Implementation Method 1
acquiring a current temperature of the cabinet by a temperature sensor
Implementation Method 2
controlling an opening degree of an air valve of a variable air volume terminal device of the cabinet according to the temperature value to be regulated, to regulate a magnitude of an air volume
Implementation Method 3
regulate a magnitude of an air volume required by the cabinet
Data Source
AI summary
Disclosed are a method, device for controlling the output of the air volume and a memory medium. The method includes: determining the temperature difference value according to the current temperature value and the preset temperature value of a cabinet; controlling the opening of an air valve of a variable air volume terminal according to the temperature difference value, so as to adjust the air volume needed by the cabinet. The temperature value needed to be adjusted is determined according to the difference value between the current temperature value and the preset temperature value. The opening of the air valve of the variable air volume terminal is correspondingly adjusted according to the temperature value needed to be adjusted, so as to adjust the air volume needed by the cabinet, and adjust the air volume according to the actual demand.