INTELLIGENT DISTRIBUTION OF ELECTRICAL POWER WITH SOLID STATE TECHNOLOGY

Abstract

Most of the electrical power distribution is in the form of a 3 phase, 4 Wire systems in European countries and South Asian countries like India is at 3 ph, 415 Volts, 50 Hz. Here, in India, most of the pumping loads are 3ph, 415 Volts whereas single phase loads ranging from lighting to Heating, Ventilation and Air Conditioning [HVAC] systems are at 230 Volts. Due to derived single phase supply from 3 phase networks, they are always operating at 5 to 10% extra voltage, albeit rated for 230V, which gives out unwanted additional output from electrical equipment with augmented power consumption at the cost of their reduced life. A new design of power distribution network is proposed here, for a load centre having a demand of 1 MW, with grid connected renewable power back up and power electronic devices. Various tests are conducted on the electrical equipment with voltage and frequency controller to demonstrate their life saving efficient operation and concluded to have a considerable 25% saving in power and a 40% to 50% enhancement in life of equipment.