| 摘要: |
| 本文针对家用变频空调蒸发器过热度控制问题，提出了一种基于带死区的积分分离的PID 控制算法和STC89S52单片机为控制核心的电子膨胀阀的开度控制系统，并阐述了控制系统的工作原理、硬件电路及控制软件设计。通过对变频空调系统的电子膨胀阀的控制实验验证：该控制器具有静态精度高，自适应能力强，可靠性高，抗干扰性强的特点。 |
| 关键词: 自动控制 单片机 PID控制 电子膨胀阀 过热度 |
| DOI： |
| 投稿时间：2012-09-01
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| 基金项目: |
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| Design of Electronic Expanded Valve (EEV) Control System Based On the STC89S52 Microcontroller |
| Wu Junyun,Ge Rongjian,Guo Mingzhu,Qiu Huixiang |
| (School of Energy & Power Engineering, Univ. of Shanghai for Science and Technology;Shanghai Yuanquan Electric Co.,Ltd.) |
| Abstract: |
| Aiming at the control problems of evaporator superheating in the household Variable frequency air conditioner, the Electronic Expanded Valve (EEV) control system was investigated based on a dead band integral-separation PID control algorithm and the STC89S52 single-chip microcontroller as the control core. And the control system principle, the hardware circuit and the software design are expounded too. The experimental results of household air conditioning showed that the EEV control system had the characteristics of static accuracy, adaptability, reliability, and anti-interference. |
| Key words: Automatic control Single-chip microcontroller PID control EEV Superheat |
