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Development of a Hybrid Excitation Single-Phase Synchronous Generator Using Negative-Phase-Sequence field and Permanent magnet Field

负相序磁场与永磁场混合励磁单相同步发电机的研制

基本信息

批准号：
16560263
负责人：
NAOE Nobuyuki
金额：
$ 2.24万
依托单位：
Kanazawa Technical College
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16560263/
关键词：
Brushless Synchronous Machine Rotating Machines Hybrid Excitation Permanent magnet

项目摘要

Permanent-magnet(PM) synchronous generators have several advantages, including simple rotor structures and high efficiency. However, because the PM flux is constant, the air gap flux is difficult to control. On the other hand, wound rotor synchronous generators can control the air gap flux by means of the field current. Therefore, if a synchronous generator with the features of a PM and wound rotors were to be developed, it would enhance the practical application potential of such generators.The author proposes a hybrid excitation single-phase synchronous generator with a PM and wound rotors. This hybrid excitation single-phase synchronous generator has distinct advantages over conventional PM or wound rotor synchronous machines. The PM rotor part of the proposed hybrid excitation single-phase synchronous generator would provide high efficiency, and the wound rotor part would allow true field regulation and field strengthening operation.Unlike other types of synchronous machines, the proposed hybrid excitation single-phase synchronous generator has one PM and one wound field separately mounted on the same shaft.In this report, the performance of a hybrid excitation single-phase synchronous generator is described. A two-pole experimental machine was made with 0.5kVA, 100V, and 60Hz. For test purposes, the prototype machine was driven by a 3.7kW induction motor. The resistance load characteristics when the prototype machine is driven at 3,600 min^<-1> are shown. The armature voltage can be largely controlled by adjusting the field current.

永磁同步发电机具有转子结构简单、效率高等优点。但是，由于粉末冶金的流量是恒定的，所以气隙流量很难控制。另一方面，绕线式转子同步发电机可以通过励磁电流来控制气隙磁通。因此，如果要开发出一种兼具永磁电机和绕线式转子特性的同步发电机，将会增强这类发电机的实际应用潜力。这种混合励磁单相同步发电机与传统的永磁同步电机或绕线式转子同步电机相比，具有明显的优点。与其他类型的同步电机不同，混合励磁单相同步发电机的永磁转子部分将提供高效率，而绕组转子部分将实现真正的调磁和强磁操作。研制了一台电压为0.5kVA、电压为100V、频率为60 Hz的两极实验机。为了进行测试，样机由一台3.7kW的感应电机驱动。给出了样机在3,600分/秒驱动下的阻力负荷特性。通过调节励磁电流，可以在很大程度上控制电枢电压。