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Energies
Volume 12
Issue 19
10.3390/en12193682
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Open AccessArticle

Study on Unbalanced Magnetic Pulling Analysis and Its Control Method for Primary Helium Circulator of High-Temperature Gas-Cooled Reactor

by
Yangbo Zheng
1,2,3,
Ni Mo
1,2,3,
Zhe Sun
1,2,3,
Yan Zhou
1,2,3 and
Zhengang Shi
1,2,3,*
1
Institute of Nuclear and New Energy Technology of Tsinghua University, Beijing 100084, China
2
Collaborative Innovation Center of Advanced Nuclear Energy Technology, Beijing 100084, China
3
The Key Laboratory of Advanced Reactor Engineering and Safety, Ministry of Education, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Energies 2019, 12(19), 3682; https://doi.org/10.3390/en12193682
Received: 22 August 2019 / Revised: 18 September 2019 / Accepted: 23 September 2019 / Published: 26 September 2019
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Abstract

In addition to providing an extremely clean environment for primary loop of high-temperature gas-cooled reactor (HTR), the primary helium circulator (PHC) using electromagnetic levitation technology also provides an effective means for vibration control. Besides synchronous vibration produced by mass imbalance and sensor runout, double-frequency vibration produced by unbalanced magnetic pull (UMP) is serious in PHC engineering prototype (PHC-EP). In this paper, we firstly analyzed the mechanism of UMP and the multi-frequency vibration characteristics in combination with the PHC-EP. Then we put forward a distributed iterative learning control (ILC) algorithm and a parallel control scheme to suppress the periodic vibrations. Finally, we verified the methods by carrying out experimental researches on the active magnetic bearing (AMB) bench of PHC-EP. The results show that the methods put forward in this paper have significant control effect on the double-frequency vibration generated by UMP of the PHC-EP and provide theoretical and practical references for the PHC safe operation in HTR. View Full-Text
Keywords: HTR; AMB; UMP; primary helium circulator; iterative learning control HTR; AMB; UMP; primary helium circulator; iterative learning control
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
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MDPI and ACS Style

Zheng, Y.; Mo, N.; Sun, Z.; Zhou, Y.; Shi, Z. Study on Unbalanced Magnetic Pulling Analysis and Its Control Method for Primary Helium Circulator of High-Temperature Gas-Cooled Reactor. Energies 2019, 12, 3682. https://doi.org/10.3390/en12193682

AMA Style

Zheng Y, Mo N, Sun Z, Zhou Y, Shi Z. Study on Unbalanced Magnetic Pulling Analysis and Its Control Method for Primary Helium Circulator of High-Temperature Gas-Cooled Reactor. Energies. 2019; 12(19):3682. https://doi.org/10.3390/en12193682

Chicago/Turabian Style

Zheng, Yangbo; Mo, Ni; Sun, Zhe; Zhou, Yan; Shi, Zhengang. 2019. "Study on Unbalanced Magnetic Pulling Analysis and Its Control Method for Primary Helium Circulator of High-Temperature Gas-Cooled Reactor" Energies 12, no. 19: 3682. https://doi.org/10.3390/en12193682

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