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Energy-saving control method for central air conditioning systems in public buildings based on improved particle swarm optimisation

Yanhua Lou

International Journal of Global Energy Issues, 2025, vol. 47, issue 3, 264-282

Abstract: In order to reduce the energy consumption of central air conditioning system in public buildings, an energy-saving control method based on improved particle swarm optimisation was proposed. This method first analyses the structure and control principle of the central air conditioning system of public buildings, and obtains the result that the air conditioning system flow can be controlled by frequency conversion and speed regulation to reduce energy consumption. Then, on this basis, the energy-saving control problem is transformed into an optimisation problem, and the objective function is designed to complete the establishment of the energy-saving control model of the central air conditioning system. Finally, the solution is completed based on the improved particle swarm optimisation algorithm. The optimal scheme of multi-device variable frequency speed regulation that can minimise energy consumption is obtained. By controlling the water flow rate and fan speed of the central air conditioning system, the energy-saving control of the central air conditioning system is completed. The test shows that the energy consumption of each equipment in the air conditioning system is reduced by 20.3% to 1.2% after using this method, which is superior to the comparison method and has great application value.

Keywords: improving particle swarm optimisation; public buildings; central air conditioning system; energy-saving control; variable frequency speed regulation; counter. (search for similar items in EconPapers)
Date: 2025
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