Performance Evaluation of Hydroponics Control Systems for pH, Temperature, and Water Level Control

IF 0.8 Q3 ENGINEERING, MULTIDISCIPLINARY

International Journal of Engineering Research in Africa Pub Date : 2023-08-08 DOI:10.4028/p-RBT3yU

M. Rathedi, O. Matsebe, N. Ditshego

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引用次数: 0

Abstract

This study evaluates different control algorithms used in a hydroponic farming system to improve the quality of farm produce and resource efficiency. It focuses on three key hydroponic control parameters(potential hydrogen (pH), water level, and temperature control). Mathematical models are derived from the literature to represent hydroponic environments. These models are used for simulation purposes in MATLAB software to implement various control algorithms to evaluate their performance against each other and the system requirements utilizing transient performance parameters. Transient performance parameters are overshoot, settling time, rise time ,and steady-state error. The various control algorithms are fuzzy logic (FL), Proportional Integral Derivative (PID), and Proportional Integral Derivative-Fuzzy logic controller (PID-FL). This paper examines the performance of the hybrid PID-FL controllers compared to the most commonly used fuzzy logic and PID controllers. The result of the work shows that PID-FL is generally better for all the system models, making it more applicable.

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酸碱度、温度和水位控制水培控制系统的性能评价

本研究评估了水培农业系统中用于提高农产品质量和资源效率的不同控制算法。它重点关注三个关键的水培控制参数（潜在氢（pH）、水位和温度控制）。数学模型是从文献中推导出来的，用来表示水培环境。这些模型用于MATLAB软件中的模拟目的，以实现各种控制算法，从而利用瞬态性能参数来评估它们彼此之间的性能和系统要求。瞬态性能参数包括超调、稳定时间、上升时间和稳态误差。各种控制算法有模糊逻辑（FL）、比例积分微分（PID）和比例积分微分模糊逻辑控制器（PID-FL）。与最常用的模糊逻辑和PID控制器相比，本文检验了混合PID-FL控制器的性能。工作结果表明，PID-FL对所有的系统模型总体上都更好，使其更适用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Engineering Research in Africa ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.80

自引率

14.30%

发文量

期刊介绍： "International Journal of Engineering Research in Africa" is a peer-reviewed journal which is devoted to the publication of original scientific articles on research and development of engineering systems carried out in Africa and worldwide. We publish stand-alone papers by individual authors. The articles should be related to theoretical research or be based on practical study. Articles which are not from Africa should have the potential of contributing to its progress and development.