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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part E. Journal of Process Mechanical Engineering >Design of microcontroller-based decentralized controller board to drive chiller systems using PID and fuzzy logic algorithms
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Design of microcontroller-based decentralized controller board to drive chiller systems using PID and fuzzy logic algorithms

机译：基于微控制器的分散控制器板设计使用PID和模糊逻辑算法驱动冷却器系统

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摘要

This study deals with designing a decentralized multi-input multi-output controller board based on a low-cost microcontroller, which drives both parts of variable-speed scroll compressor and electronic-type expansion valve simultaneously in a chiller system. This study aims to show the applicability of commercial low-cost microcontroller to increase the efficiency of the chiller system, having variable-speed scroll compressor and electronic-type expansion valve with a new electronic card. Moreover, the refrigerant system proposed in this study provides the compactness, mobility, and flexibility, and also a decrease in the controller unit's budget. The study was tested on a chiller system that consists of an air-cooled condenser, a variable-speed scroll compressor, and a stepper driven electronic-type expansion valve. The R134a was used as a refrigerant fluid and its flow was controlled by electronic-type expansion valve in this setup. Both variable-speed scroll compressor and electronic-type expansion valve were driven by the proposed hardware using either proportional integral derivative or fuzzy logic controller, which defines four distinct controller modes. The experimental results show that fuzzy logic controlled electronic-type expansion valve and proportional integral derivative controlled variable-speed scroll compressor mode give more robustness by considering the response time.
机译：本研究涉及基于低成本微控制器设计分散的多输入多输出控制器板，其在冷却系统中同时驱动可变速涡旋压缩机和电子型膨胀阀的两个部分。本研究旨在展示商业低成本微控制器的适用性，提高冷却器系统的效率，具有可变速度涡旋压缩机和具有新型电子卡的电子型扩展阀。此外，本研究中提出的制冷剂系统提供了紧凑性，移动性和灵活性，以及​​控制器单元预算的减少。该研究在冷却器系统上进行了测试，该系统由空气冷却电容器，可变速度涡旋压缩机和步进驱动的电子型膨胀阀组成。 R134A用作制冷剂流体，其流动通过该设置中的电子型膨胀阀控制。使用比例整体衍生物或模糊逻辑控制器的提出的硬件驱动了可变速度涡旋压缩机和电子型扩展阀，其定义了四种不同的控制器模式。实验结果表明，通过考虑响应时间，模糊逻辑控制电子型膨胀阀和比例整体衍生控制的变速涡旋压缩机模式提供了更强大的鲁棒性。

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