稀土永磁同步发电机具有效率高、结构简单、可靠性高等一系列优点，但由于其电压调节困难，故应用受到限制。
Meanwhile, the application of the permanent magnet synchronous generator, which is simple in structure, high in efficiency and reliability, is limited by the difficulty to adjust its output voltage.
采用稀土永磁材料的发电机在可靠性及效率上优于普通发电机，体积重量也相匹敌。
The principle advantage of the REPM (rare -earth permanent magnet) generator over the common one is high efficiency and high reliability, and the weight between them is approximately equal.
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