基于plc的PID控制器用于棕榈油厂废水的实时pH中和过程

IF 0.6 Q3 ENGINEERING, MULTIDISCIPLINARY IIUM Engineering Journal Pub Date : 2023-01-04 DOI:10.31436/iiumej.v24i1.2366
Azavitra Zainal, Norhaliza Abdul Wahab, M. I. Yusof
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引用次数: 2

摘要

pH中和过程是一个高度非线性的过程和时滞系统,难以控制和精确的数学建模。因此,通常采用需要可靠的实验数据来表示过程动态的经验方法。本文通过对pH中和过程中加酸泵冲程的不同调整,研究了基于plc的PID控制器的性能。pH中和过程为单输入、单输出系统,操纵变量为加碱泵冲程,控制变量为pH,加酸泵冲程设为常数。加酸泵冲程调整为10%、15%和25%。结果表明,当加酸泵冲程速率设定为10%时,基于设定值跟踪的PID控制器性能最佳,可作为经验方法的实验数据。此外,利用美国国家仪器公司的OPC服务器将PLC和MATLAB集成在实时控制系统中,实时访问实验数据,进行仿真,为未来的先进控制开发奠定基础。摘要/ abstract摘要:中浅水pH值模拟了线性的阳水水模型和阳水水水模型。Oleh itu, kaedah,经验数据分析,实验数据分析,数据分析,数据分析,数据分析,数据分析等。Kajian ini adalah berkaitan Kajian prestasi pengawal PLC-berdasarkan PID menggunakan pelbagai perubahan kadar stroke pam dos asasam propropenmiddle alan pH. propromiddle alan pH. ini adalah系统状态输入/输出,di mana pemboleh ubah yang dimanipulasi adalah kadar peratusan stroke pam dos碱menggunakan pam peristtik, pemboleh ubah kawalan ialah pH丹pemboleh ubah malar ialah peratusan doasi。卡达尔中风的比例为10%,15%和25%。Dapatan kajian menunjukkan prestasi terbaik kawalan PID adalah berdasarkan pengesan titik-set apabilan kadar卒中panesan dilaraskan pades10 %, di mana iya berkan apabila digunakan sebagai数据,实验dalam kaedah经验。Tambahan, kanjian ini telah berjaya membentuk系统kawalan masa nyata bagi处理penturalan pH . menggunakan PLC与MATLAB melalupelayan National Instruments OPC bagi membolehkan pertukaran数据,实验secara masa nyata yang cekap, menjalankan simulasi dan pembangunan kawalan termaju paada masa hadapan。
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PLC-based PID controller for real-time pH neutralization process using Palm Oil Mill Effluent
The pH neutralization process is a highly non-linear process and time delay system that is difficult to control and to accurately model mathematically. Therefore, the empirical method, which needs reliable experimental data to represent the process dynamics, is often used. In this paper, the performance of the PLC-based PID controller was studied using a different adjustment of the acid dosing pump stroke rate in the pH neutralization process. The pH neutralization process is a single-input, single-output system where the manipulated variable is the alkali dosing pump stroke rate, the controlled variable is pH, and the acid dosing pump stroke rate is set as a constant. The acid dosing pump stroke rate was adjusted to 10%, 15% and 25%. The results showed that the best performance of the PID controller was based on setpoint tracking when the setting of the acid dosing pump stroke rate was set at 10%, which could be used as experimental data in the empirical method. In addition, the real-time control system was integrated between PLC and MATLAB using National Instruments OPC server to access the experimental data in real-time, conduct simulation, and to develop the advanced control in the future. ABSTRAK: Peneutralan pH adalah proses tidak linear yang sukar dikawal dan sukar mendapat model matematik yang tepat. Oleh itu, kaedah empirikal memerlukan data eksperimen masa nyata bagi mewakili proses dinamik untuk mengatasi masalah ini. Kajian ini adalah berkaitan kajian prestasi pengawal PLC-berdasarkan PID menggunakan pelbagai perubahan kadar strok pam dos asid dalam proses peneutralan pH. Proses peneutralan pH ini adalah sistem satu input/output, di mana pemboleh ubah yang dimanipulasi adalah kadar peratusan strok pam dos alkali menggunakan pam peristaltik, pemboleh ubah kawalan ialah pH dan pemboleh ubah malar ialah peratusan dos asid.Kadar strok pam dos asid dilaraskan pada 10%, 15% dan 25%. Dapatan kajian menunjukkan prestasi terbaik kawalan PID adalah berdasarkan pengesan titik-set apabila kadar strok pam dos asid dilaraskan pada 10%, di mana ianya berkesan apabila digunakan sebagai data eksperimen dalam kaedah empirikal. Tambahan, kajian ini telah berjaya membentuk sistem kawalan masa nyata bagi proses penutralan pH menggunakan PLC dan MATLAB melalui pelayan National Instruments OPC bagi membolehkan pertukaran data eksperimen secara masa nyata yang cekap, menjalankan simulasi dan pembangunan kawalan termaju pada masa hadapan.
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来源期刊
IIUM Engineering Journal
IIUM Engineering Journal ENGINEERING, MULTIDISCIPLINARY-
CiteScore
2.10
自引率
20.00%
发文量
57
审稿时长
40 weeks
期刊介绍: The IIUM Engineering Journal, published biannually (June and December), is a peer-reviewed open-access journal of the Faculty of Engineering, International Islamic University Malaysia (IIUM). The IIUM Engineering Journal publishes original research findings as regular papers, review papers (by invitation). The Journal provides a platform for Engineers, Researchers, Academicians, and Practitioners who are highly motivated in contributing to the Engineering disciplines, and Applied Sciences. It also welcomes contributions that address solutions to the specific challenges of the developing world, and address science and technology issues from an Islamic and multidisciplinary perspective. Subject areas suitable for publication are as follows: -Chemical and Biotechnology Engineering -Civil and Environmental Engineering -Computer Science and Information Technology -Electrical, Computer, and Communications Engineering -Engineering Mathematics and Applied Science -Materials and Manufacturing Engineering -Mechanical and Aerospace Engineering -Mechatronics and Automation Engineering
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