Multi-Variable Control of Variable-Frequency Air Conditioner
Date Issued
2016
Date
2016
Author(s)
Chen, Wei-Jen
Abstract
The main purpose of the present research is to develop a variable-frequency air conditioner system. By modifying the frequency of the compressor and the opening of the electronic expansion valve, we can precisely control room temperature and superheat temperature. The multi-variable control system is simplified to two individual single variable control systems, while the interaction is treated as the disturbance process of the control system. A prototype of variable-frequency air conditioner system was built and tested. The experiment results show that the room temperature error is less than 0.1℃ and the superheat temperature error is less than 1℃. The performance of the designed variable-frequency air conditioner system is shown satisfactory.
Subjects
Variable-Frequency Air Conditioner
Multi-Variable Control
Disturbance
Type
thesis
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ntu-105-R02522847-1.pdf
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