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Design aspects and achievements of active magnetic bearing research for HTR-10GT

机译：HTR-10GT有源电磁轴承设计方面的研究与成果

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The project of direct helium turbine power conversion cycle of the 10 MW high-temperature gas-cooled reactor (HTR-10GT) program is to set up a direct helium cycle with a helium turbine and generator system to replace the current heat exchange system and steam cycle. This program is supported by Chinese government and will be assumed by the Institute of Nuclear and New Energy Technology (INET) at Tsinghua University of China. Instead of ordinary mechanical bearing, active magnetic bearing (AMB) has been chosen to support the helium turbine and generator rotors in this project. Until now, no experience on AMB running in reactor or in helium environment has been performed. So, the AMB research and experiment would at least go through several convictive stages to finally match the requirements of the HTR-10GT program. The magnetic bearing laboratory of INET has begun to work on this project in 2002. Till now, a control method of exceeding two bending frequency has been successfully tested on a small test rig. A high load AMB for 3500 kg generator rotor suspension has been constructed and long-term running tests have just been finished. In addition, the general design of a high-temperature AMB test rig has already been finished. All these achievements on AMB research show that we are well on the way to the ultimate goal of direct helium cycle. Today the final joint experiment of turbine and generator is already under detailed planning.
机译：10 MW高温气冷堆（HTR-10GT）计划的直接氦轮机功率转换周期项目是建立一个直接运行的氦轮机和发电机系统的氦气循环系统，以替代当前的热交换系统和蒸汽周期。该计划在中国政府的支持下，将由中国清华大学核能与新能源技术研究所（INET）承担。在该项目中，代替普通的机械轴承，选择了主动磁轴承（AMB）来支撑氦轮机和发电机转子。到目前为止，还没有关于在反应堆或氦气环境下运行的AMB的经验。因此，AMB的研究和实验至少要经历几个阶段，才能最终满足HTR-10GT计划的要求。 INET的磁性轴承实验室已于2002年开始从事此项目。到目前为止，已经在小型试验台上成功测试了超过两个弯曲频率的控制方法。已经建造了用于3500公斤发电机转子悬架的高负载AMB，并且长期运行测试已经完成。此外，高温AMB测试台的总体设计已经完成。在AMB研究中取得的所有这些成就表明，我们正朝着直接氦循环的最终目标迈进。今天，涡轮机和发电机的最终联合试验已经在详细计划中。

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