TRANSIENT ANALYSIS OF SELF-EXCITED INDUCTION GENERATOR (SEIG) WITH ELECTRONIC LOAD CONTROLLER (ELC) SUPPLYING STATIC AND DYNAMIC LOADS

Abstract

Small scale power generation near consumer's premises has received greater attention in recent years for use in remote and rural communities due to the cost and complexity involved in the grid extension. Thus, suitable stand-alone systems using locally available energy sources have become a preferred option. With increased emphasis on eco-friendly technologies the use of renewable sources such as small hydro, wind and biomass is being explored. Subject to availability, small hydro systems with minimal civil works to electrify local communities are considered as an attractive option. This report focuses on transient analysis of three phase self-excited induction generator (SEIG) with electronic load controller (ELC). All components of the considered system are modeled and simulated for transient analysis of the system. This transient analysis includes process of self-excitation, voltage build up, faults, unbalanced loading, unbalanced excitation and switching of resistive and dynamic loads. The performed study may help in determining insulation strength, suitability of winding, shaft strength, value of capacitor and devising the protection strategy for the SEIG. This system stability can further be extended to interconnected system with necessary modifications in mathematical modelling.