A Software Emulator for the Modelling and Control of an Activated Sludge Process in a Wastewater Treatment Plant

IF 2.8 4区工程技术 Q2 ENGINEERING, CHEMICAL

Processes Pub Date : 2021-11-16 DOI:10.3390/pr9112054

D. Selișteanu, I. Popescu, M. Roman, Constantin Șulea-Iorgulescu, Sorin Mehedințeanu

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引用次数: 1

Abstract

The design and implementation of a simulator, as a real-time application, for a complex process from the biological treatment stage of a wastewater treatment plant (WWTP), is addressed. More precisely, this emulator was achieved as a software tool that can be later integrated into a more complex SCADA (supervisory control and data acquisition) system of the WWTP Făcăi, Romania. The basic idea is to implement and validate a reduced-order model of the activated sludge process (ASP), initially simulated in the Matlab/Simulink environment (The MathWorks, Inc., Natick, MA, USA). Moreover, an advanced multivariable adaptive control scheme of the ASP is addressed. This software tool can be made to work in parallel with the evolution of the process and can have as input signals measured directly at the process level, possibly following parametric or model adaptations. The software emulator is developed in the LabWindows/CVI programming environment (National Instruments), which offers low-level access to hardware or software systems that have minimal open-architecture facilities. This environment provides versatile drivers and software packages that can facilitate the interaction with software tools developed within some earlier SCADA systems. The structure and the graphical interface of the emulator, some functionalities, experiments, and evolution of main variables are presented.

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用于污水处理厂活性污泥过程建模和控制的软件仿真器

设计和实现了一个模拟器，作为一个实时应用程序，从一个污水处理厂(WWTP)的生物处理阶段的复杂过程。更准确地说，这个模拟器是作为一个软件工具实现的，以后可以集成到一个更复杂的SCADA(监控和数据采集)系统的污水处理厂，罗马尼亚。基本思想是实现和验证活性污泥过程(ASP)的降阶模型，最初在Matlab/Simulink环境中进行模拟(The MathWorks, Inc.， Natick, MA, USA)。在此基础上，提出了一种先进的多变量自适应控制方案。该软件工具可以与过程的发展并行工作，并且可以作为直接在过程级别测量的输入信号，可能遵循参数或模型调整。软件仿真器是在LabWindows/CVI编程环境(National Instruments)中开发的，它提供了对具有最小开放架构设施的硬件或软件系统的低级访问。这种环境提供了多种驱动程序和软件包，可以促进与一些早期SCADA系统中开发的软件工具的交互。给出了仿真器的结构、图形界面、部分功能、实验和主要变量的演化。

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来源期刊

Processes Chemical Engineering-Bioengineering

CiteScore

5.10

自引率

11.40%

发文量

2239

审稿时长

14.11 days

期刊介绍： Processes (ISSN 2227-9717) provides an advanced forum for process related research in chemistry, biology and allied engineering fields. The journal publishes regular research papers, communications, letters, short notes and reviews. Our aim is to encourage researchers to publish their experimental, theoretical and computational results in as much detail as necessary. There is no restriction on paper length or number of figures and tables.