Controlling of Electrical Power System Network by using SCADA

Abstract

Due to rapid development in automation system, the remote operation, control and monitoring are necessary for any modern system. The SCADA (Supervisory Control and Data Acquisition) provides this remote operation, control and monitoring for industrial automation. The SCADA is also widely used for overall operation of modern power system. The application of SCADA is still new in Bangladesh specially in power system. This study is about the application of SCADA in overall operation, control and monitoring of transmission and distribution electrical power system network of Dhaka city, Bangladesh. DPDC (Dhaka Power Distribution Company Limited) is the authority which is managing the transmission and distribution network of Dhaka city, Bangladesh. The 132 and 33KV circuit breakers of power system network of Dhaka city are generally operated through the SCADA system for uninterrupted power supply to the consumers. The daily operation, load management and system faults are monitored by the SCADA which improves the performance of overall system operation of DPDC. The SCADA system comprises of RTU (remote telemetry unit), microwave communication network and RCS (remote control server). The RTU is placed in every substation of the electrical power system network of Dhaka city. The SPIDER software is used for SCADA system of DPDC. The SPIDER uses UNIX based platform .The information for daily operation of the overall power system network of the Dhaka city is stored in the database of RCS, which is the processed by the SPIDER software. The overall scenario of power system network on daily basis is obtained by using this software. The SCADA system helps in managing the overall system of DPDC with minimum supervision and manpower. Moreover it improves the system efficiency.