STEADY STATE ANALYSIS OF ELECTRONIC LOAD CONTROLLER FOR 3 PHASE ALTERNATOR

Abstract

Rural electrification may provide grid connectivity to many uncovered areas, but actual supply of electricity through the grid would remain both constrained and unpredictable as a result may still leave substantial numbers of remote areas unconnected. Micro Hydro project can generate power in decentralized and distributed mode which has the advantages of production at consumption points and does away with land and environmental related concerns and problems. Therefore a standalone autonomous unit to feed local consumers using micro hydro project is a preferred choice but this power generated is directly feed to the consumers if there is a variation in the load then it will affect the generator/turbine and other equipments connected to them. To solve this problem number of sophisticated control system, are available in power application but they are expensive and inappropriate for micro hydro. One solution concept which is widely adopted is the electronic load controller. Load controller maintains the generator output voltage and frequency, irrespective of the amount of load connected to the generator. It does it by automatically dissipating any surplus power produced by the generator in additional load known as ballast load/dump load. This report focuses on steady state analysis of three phase alternator with electronic load controller (ELC). This steady state analysis includes stability and controllability of the system and simulation of the system in Simulink