Abstract
This paper deals with comparison analysis on output characteristics of two types of generators for a hybrid electric propulsion system (H-EPS) consisted of an engine-driven system and an electric driven system. Main components of H-EPS consists of two parts. One is a power generation system with efficient electric power generation performance even in a variable speed condition of a diesel main engine, and the other is a charging system with efficient storage performance of the electric energy. The generator of power generation system for the H-EPS is required to have the highest reliability and stability, despite isolation at sea and poor engine room environment. In addition, it should be compact structure with high output and lightweight in relation to volume. For the purpose of this study, we selected a self excited induction generator (SEIG) and a permanent magnet synchronous generator (PMSG) for H-EPS, and analyzed their output characteristics through several experiments. By comparing the experimental results, it was clear that PMSG exhibited better performance than SEIG as the generator for H-EPS.
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