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Hybrid excitation synchronous generators for small hydropower plants

机译：用于小水电站的混合励磁同步发电机

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Modern rare-earth permanent magnets (PMs) can substantially improve the output characteristics of electrical machines. However, at the same time, the main flux created by PMs is not adjustable, and therefore, permanent magnet synchronous generators (PMSGs) are inappropriate for some applications where the reactive power regulation is required. To overcome this disadvantage, the researchers investigated hybrid excitation synchronous generators (HESGs) where the flux due to PMs is regulated with the help of field windings. The aim of this paper is to present a study of a direct-on-line HESG for small hydropower plants where reactive power regulation is required. This paper demonstrates the performance of all three different types of synchronous machines, that is a PMSG, a conventional electrically excitated synchronous generator (EESG), and an HESG, designed for small hydropower plants, and presents their comparison.
机译：现代稀土永磁体（PMS）可以大大提高电机的输出特性。然而，与此同时，PMS产生的主通量不可调节，因此，永磁同步发电机（PMSG）不适合需要无功功率调节的应用。为了克服这个缺点，研究人员调查了混合励磁同步发电机（HESG），其中借助于现场绕组调节PMS引起的助焊剂。本文的目的是展示针对需要无功功率调节的小型水电站直接线HEMG的研究。本文展示了所有三种不同类型的同步机的性能，即PMSG，传统的电激发同步发电机（EESG），以及为小型水电站设计的HESG，并呈现它们的比较。

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