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Amalgamtion of Internet for Supervisory Control and Data Acquisition System (SCADA) Encompassing Security Issues

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2 Author(s)

Supervisory Control And Data Acquisition (SCADA) systems have been widely used in industry applications. Due to their application specific nature, most SCADA systems are heavily tailored to their specific applications. Here in this paper an Internet based SCADA (Supervisory Control And Data Acquisition) system is presented. Using the Internet makes it simple to use standard Web browsers for data presentation, thus eliminating the need for proprietary host software. It also eliminates the cost and complexity of long distance communications. In this Paper Primary data, i.e. the real time data (data that reflect real- time operational condition of the power system) of the power system, is acquired at every node of outward power/energy flow with the help of a client PC (RTU). The data thus acquired are sent to a central monitoring station (SCU), which may also be used as a server PC. The program Software used in the server PC performs the necessary analysis and display (both numerically and graphically) the data received from the client. With preset values of control parameters, when analyzed data finds the parameters exceeding the preset values, it sends a trip signal to the client PC. After this the client PC disconnects that node of outward power flow from the subregional power system. Also Graphical user interfaces has been introduced in this scheme both for the clients as well as for the server. This scheme is tested and found to work as per expectations.

Published in:

Data Storage and Data Engineering (DSDE), 2010 International Conference on

Date of Conference:

9-10 Feb. 2010