An efficient integrated model for diesel-engine three stage brushless synchronous generator

Abstract

Brushless power generation sets are a technology of choice for on-board power generation in aerospace and marine applications, emergency and backup power systems, etc. Efficient modelling of these systems is necessary for various purposes such as design, analysis, control and specially condition monitoring. An accurate and efficient model of a diesel-engine generator-rectifier system consisting of a three stage brushless synchronous generator is presented. The constant parameter voltage-behind-reactance model of the pilot exciter (PE), main exciter (ME) and main generator are derived and integrated to form a unified model suitable for efficient simulation of a diesel-engine brushless generation system. Simulation studies are carried out in MATLAB using PLECS toolbox and the results are compared to experimental results to verify the performance of the proposed integrated model.