The New Integrated WAN Interconnected SCADA Systems
ABSTRACT:
A number of new technologies for monitoring, protection, and control of the power grid have been perfected in recent years and a judicious application of these technologies can help to reduce the frequency and severity of future catastrophic failures. Supervisory Control And Data Acquisition (SCADA) system provides an excellent tool for monitoring and control of grid operations. With the opening of the electrical utility market, SCADA systems have now changed from “Luxury” to a “Necessity”.
The traditional SCADA approaches assume that each function such as protection, control, monitoring, and maintenance are supported by a separate infrastructure of recording instruments and/or controllers for obtaining and processing data. One issue that did not get adequate attention regarding control and protection of power systems in the past SCADA systems is the data integration and information exchange. These SCADA models provide acceptable performance and reliability, but it has numerous drawbacks, particularly in the areas of flexibility and open access to information. The new upcoming trends like Wide Area Network (WAN), interconnected SCADA systems can eliminate these drawbacks. Configuration and communication techniques of WAN interconnected SCADA system are presented in the paper. This system can lead to excellent reliability and processing capabilities of existing SCADA systems.
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