Multi-Variable Control of Variable-Frequency Air Conditioner

• Main Authors: Wei-Jen Chen, 陳威仁
• Other Authors: 黃秉鈞
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/50615414725387915463

碩士 === 國立臺灣大學 === 機械工程學研究所 === 104 === 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.