Starting and Dynamic Performance of A Parallel Field Rotor Type Hybrid Generator with PM Exciter

2019 IEEE International Conference on Industrial Technology (ICIT) Pub Date : 2019-02-01 DOI:10.1109/ICIT.2019.8755225

H. Woo, Dong-Hee Lee

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引用次数: 1

Abstract

This paper presents a hybrid generator with a PM(Permanent Magnet) exciter to improve the operating efficiency, dynamic response and emergency starting characteristic. The proposed hybrid generator is designed by the parallel combination of the winding field and the PM field. In the proposed hybrid generator, the PM assistant field can be added to the conventional winding rotor to improve the total efficiency without the complex optimized design. The assistant PM field can supply the enough linkage flux to produce the no-load generation voltage and the starting power for the controller. The controlled field current of the winding part, is used to produce insufficient flux to keep the constant output voltage from the load variation of the generator.Furthermore, the direct field current control scheme using the PM exciter can improve the dynamic performance compare than the indirect field current control structure of the conventional excitation system. In the designed 10kW prototype hybrid generator with PM exciter is tested and compared with the conventional generator, hybrid generator with the winding exciter.

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带永磁励磁器并联励磁转子式混合式发电机的起动及动态性能

本文提出了一种采用永磁励磁器的混合式发电机，以提高发电机的运行效率、动态响应和应急起动特性。所提出的混合式发电机采用绕组磁场和永磁磁场并联组合的方式进行设计。在混合式发电机中，可以在常规绕组转子上增加PM辅助磁场，从而提高总效率，而无需进行复杂的优化设计。辅助永磁磁场可以提供足够的联动磁链，产生空载发电电压和控制器的启动功率。绕组部分的控制励磁电流用于产生不充分的磁通，以保持发电机负载变化时输出电压恒定。此外，与传统励磁系统的间接励磁电流控制结构相比，采用永磁励磁机的直接励磁电流控制方案可以改善励磁系统的动态性能。在设计的10kW永磁励磁混合发电机样机中，对其进行了测试，并与常规发电机、绕组励磁混合发电机进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 IEEE International Conference on Industrial Technology (ICIT)

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