Analysis and Design of a Modern SCADA System

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ABSTRACT


Supervisory Control And Data Acquisition (SCADA) systems
play an important role in enhancing industrial and automation systems.
This thesis presents planning, design, and analysis procedure of a modern
SCADA system for the purpose of electrical power distribution in Ninevah
city. The procedure followed includes; suggesting a suitable wired network
(Ethernet) topology to connect the system using cost-reliability
optimization algorithm, and in depth analysis of using long haul Ethernet as
the carrying network for transferring control signals of the system
considering cost, performance, and reliability, then the system is designed
using Wireless Mesh Networking (WMN) network (and DSR as one of its
protocols) as a wireless backup network in case of any server failure of the
network system. The OPNET package is used as a simulation tool to build
the different models which reflect real working conditions, where the
network was supplied with different applications and services such as
(SCADA data packets using File Transfer Protocol (FTP), Video
streaming, Voice Over IP (VOIP) and Telnet). The goal of this study is to
investigate the effect of the different parameters on the system performance
(throughput, network delay, response time...etc.) and to evaluate the
advantages of using Industrial Ethernet and WMNs as the backbone of such
systems, after that an experimental network is built in the lab to emulate the
real network and to validate the simulation results using software
programming language (LabVIEW package) and Data Acquisition Cards
from National instrument (NI) that gives fully visualized Graph user
interface (GUI).


From this procedure, an optimum SCADA system is
suggested taking into account all the necessary parameters.

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