Design of an Alternator Torque Model with an Equivalent Circuit of the Synchronous Generator

Abstract

This paper presents the alternator torque model derived from an equivalent circuit of synchronous generator. The model is designed to simulate the automotive alternator operated on various conditions. It reflects the torque variation mainly caused by dynamic characteristics such as engine speed, load current, and target voltage. The alternator torque works as the engine load directly, thus the model can be used for the establishment of energy management strategies. In this paper, a research case of the alternator generation control is introduced to validate a model application. The simulation result shows the model is applicable for the variety of energy management researches.