Electrical power transmission and energy management system

Abstract

Electrical power transmission system forms an important part of the electricity network required to transfer bulk amount of power produced at remotely located generating stations to the load centres. In most of the countries, including India, the electricity sector has a vast interconnected system of generation, transmission and distribution network, which requires modern computer-aided operation and control system. Such a system is called 'Energy Management System (EMS)', conventionally based on Supervisory Control and Data Acquisition (SCADA) features. With the recent development of dielectric as well as conducting materials, power electronic devices, information technology and automation system, a new class of transmission and control equipment is being used and the energy management system is also being modernized. Recent blackouts in India and other countries have prompted the use of Wide Area Monitoring Control and Protection System (WAMCPS) based on synchrophasor technology for real time monitoring of dynamic states and security of the system. This paper describes the present status and future developments in the electrical power transmission, energy management system, and emerging technologies, specifically in the Indian context.