国外文献 > 1.轴承 > 2. 轴承类型与部件 > 磁悬浮轴承
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| 标 题： |
A high-speed shaft supported by magnetic bearings applied to energy systems
由磁悬浮轴承支撑的高速轴应用于能源系统 |
| 作 者： |
Rosa, Fabiano Camargo
Lima, Fabio
Fumagalli, Marco Antonio |
| 关键词： |
Active magnetic bearings [主动磁悬浮轴承]
Dynamics [ 动力学]
Energy generation [ 能源生产] |
| 出版年： |
2017 |
| 期刊名： |
Journal of the Brazilian Society of Mechanical Sciences and Engineering
巴西机械科学与工程学会期刊 |
| 年卷期： |
2017, vol.39, no.1 |
| 摘 要： |
This paper presents the construction of a mechanical shaft supported by active magnetic bearings (AMB), reproducing a prototype of a turbogenerator. In turbogenerators, the shaft is supported by two radial and one axial magnetic bearings. At the center of the shaft was inserted a rotor of an induction machine, which will operate as motor as well as generator, and at the shaft extremity is coupled a small turbine. The mechanical modeling and assembly are presented in detail. After that the control system of the AMB is introduced. The high-speed AMB-supported shaft reduces the length of the system as well as losses and increases the system efficiency. The validation of the high-speed shaft supported by AMB allows the energy generation, in the future, provided by the asynchronous generator mounted upon the shaft. Prime mover, such as gas, will be considered to provide the mechanical power. Finally, for injecting the energy into the grid, an indirect field-oriented control (IFOC) was used for high performance of the generator side. On the grid side, the voltage-oriented control (VOC) is applied to guarantee the high quality of the current injected into the grid.
本文介绍了一种由主动磁悬浮轴承（AMB）支撑的机械轴结构，该结构用于模拟涡轮发电机的原型。在涡轮发电机中，轴由两个径向磁轴承和一个轴向磁轴承支撑。轴中心安装有感应电机的转子，该转子既可作为电机运行，也可作为发电机工作； 轴端连接着小型涡轮机。文中详细介绍了机械建模与装配过程。随后介绍了AMB的控制系统。高速AMB支撑的轴能够缩短系统长度、降低损耗，并提高系统效率。通过验证采用AMB支撑的高速轴，未来可通过安装在轴上的异步发电机实现能量输出。为提供机械动力，可考虑使用燃气等作为原动机。最后，为了将能量注入电网，采用间接磁场定向控制（IFOC）以提升发电机侧的性能。在电网侧，则采用电压定向控制（VOC），以确保注入电网的电流质量高。 |
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