Next Article in Journal
Enhancing Bioenergy Yields from Sequential Bioethanol and Biomethane Production by Means of Solid–Liquid Separation of the Substrates
Previous Article in Journal
Double Stage Double Output DC–DC Converters for High Voltage Loads in Fuel Cell Vehicles
Open AccessArticle

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

by 1,2,3, 1,2,3, 1,2,3, 1,2,3 and 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
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
Show Figures

Graphical abstract

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

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop