PLC and SCADA based smart distribution system.

Abstract

In today’s world most of the systems are operate on automation. Because of that the automotive systems are most efficient. Automation means use of Programmable Logic Controller (PLC) & Supervisory Control And Data Acquisition (SCADA) instead of electromechanical devices. PLC & SCADA based distribution monitoring & control means use of automotive system in electrical distribution system for monitoring the electrical parameters (like voltage, current, power factor, etc) & controlling if any fault occurs in electrical system with the help of personal computer (PC). Electric power distribution system is an important part of electrical power systems in delivery of electricity to consumers. Automation in the distribution field allows utilities to implement flexible control of distribution systems, which can be used to enhance efficiency, reliability, and quality of electric service. Presently, worldwide research and development efforts are focused in the areas of communication technologies revolution and application of IEC 61850 protocol in the distribution automation to make distribution automation more intelligent, efficient and cost effective. This report has proposed a model that illuminates the categories of data, functionality, and interdependencies present in a SCADA system. Main concept of the project is data acquisition and controlling by using SCADA software PLC. Here PLC is a medium between electrical system and Personal Computer for SCADA to take input and output bits.By using the parameters, we can easily control any load in our system to improve system operation, system reliability, etc. alternatively, SCADA and PLC communication system make it possible to integrate protection control and monitoring electrical parameter together for maximum benefit. It also discusses about the present implantation philosophies and current challenges in the distribution system automation. Further, EPRI ‘IntelliGrid’ project is discussed as an example of advance distribution system automation. Finally, communication aided advanced distribution system automation and its advantages are explained in detail.