RuPAC2016 - List of Keywords (permanent-magnet)

Paper	Title	Other Keywords	Page
THPSC003	The Design of Permenant Magnet Spread System for 0.5 MeV Irradiation Accelerator	electron, high-voltage, dipole, radiation	541
	J. Huang, Q.S. Chen, K. Fan, M. Fan, W. Qi, Y.Q. Xiong, J. Yang, L.G. Zhang HUST, Wuhan, People's Republic of China T. Yu, C. Zuo Huazhong University of Science and Technology, State Key Laboratory of Advanced Electromagnetic Engineering and Technology,, Hubei, People's Republic of China
	Funding: Supported by Natural Science Foundation (11505068) The traditional electron beam scanning magnet has many disadvantages, for example, the regulatory of excitation current is very complex and the irradiation uniformity as well as the irradiation area is very difficult to improve and expand. Thus the author of the paper proposes an innovative technology of a permanent magnet spread system for 10 MeV irradiation accelerator which uses a special configuration of the magnetic field to spread electron beam bunch directly and would remarkably improve the spread uniformity, simplify the accelerator and would be helpful to protect the titanium window and expand the irradiation area. Also, the technology could as well be used on the electron beam irradiation of those irregular structured objects of large size.
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THPSC012	First Experience of the HTS-II Dipole Type Magnets Development at NIIEFA	dipole, operation, controls, cryogenics	563
	I.Yu. Rodin, V.M. Amoskov, E.N. Andreev, A.A. Dyomina, V.A. Glukhih, V.P. Kukhtin, E.A. Lamzin, E.R. Zapretilina NIIEFA, St. Petersburg, Russia V.A. Belyakov, S.E. Sytchevsky Saint Petersburg State University, Saint Petersburg, Russia S.V. Samoilenkov JSC SuperOx, Moscow, Russia
	The possibility to design, manufacture and test the dipole type magnets from the second generation high-temperature superconductors (HTS-II like YBCO and ReBCO) was demonstrated at the Efremov Institute. The paper describes available computation techniques, design approaches and manufacturing equipment, which could be used to meet the modern requirements for the magnets of accelerators, research equipment, magnet levitation systems etc. The manufacturing equipment comprises the winding lines and insulating devices to provide different configurations and insulating schemes of coils. Additionally, an equipment to produce the Roebel-cable for high current applications was procured and put in operation. As an example, the results of development of the HTC-II dipole type magnets for the different kind dummies of maglev systems are presented. The ReBCO tapes produced by JSC "SuperOx" (Moscow) were used. Up to 0.5 T magnets cooled by liquid nitrogen were designed as a part of levitation system consists of permanent, HTS-II and normal conductive magnets. Comprehensive tests verified the computation results and demonstrated the readiness to develop HTS-II dipole magnets under the customer requirements.
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THPSC087	Stabilization of the Equilibrium Position of a Magnetic Control System with Delay	controls, feedback, simulation, electron	736
	A.Yu. Aleksandrov, A.P. Zhabko, I.A. Zhabko Saint Petersburg State University, Saint Petersburg, Russia A.A. Kosov ISDCT SB RAS, Irkutsk, Russia
	Funding: The research was partially supported by the Saint Petersburg State University (project No. 9.37.157.2014), and by the Russian Foundation for Basic Research (grant Nos. 15-08-06680 and 16-01-00587-a). Nonlinear oscillatory systems are widely applied for the modeling of charge particles motions in cyclotrons in neighborhoods of equilibrium orbits. They are also used for the analysis and synthesis of magnetic control devices. An actual problem for such systems is stabilization of their operating modes. In this report, analytical and numerical investigations of stability of the equilibrium position for a nonlinear oscillatory system are presented. The system can be treated as a mathematical model of magnetic suspension control system of a gyro rotor. A delay in the feedback control scheme and dissipative forces occurring due to energy losses at the interaction of the magnetic field with currents in the control loops are taken into account. Two approaches to the synthesis of stabilizing controls are proposed. The first one is based on the using of gyroscopic control forces. It is applicable in the case of essentially nonlinear homogeneous dissipative forces. The second approach is efficient for systems with linear dissipative forces. For this case, potential control forces are constructed. With the aid of a computer simulation of dynamics of closed-loop systems, a comparison of these approaches is fulfilled, and their features and conditions of applicability are determined.
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Paper

Title

Other Keywords

Page

THPSC003

The Design of Permenant Magnet Spread System for 0.5 MeV Irradiation Accelerator

electron, high-voltage, dipole, radiation

541

J. Huang, Q.S. Chen, K. Fan, M. Fan, W. Qi, Y.Q. Xiong, J. Yang, L.G. Zhang
HUST, Wuhan, People's Republic of China
T. Yu, C. Zuo
Huazhong University of Science and Technology, State Key Laboratory of Advanced Electromagnetic Engineering and Technology,, Hubei, People's Republic of China

Funding: Supported by Natural Science Foundation (11505068)
The traditional electron beam scanning magnet has many disadvantages, for example, the regulatory of excitation current is very complex and the irradiation uniformity as well as the irradiation area is very difficult to improve and expand. Thus the author of the paper proposes an innovative technology of a permanent magnet spread system for 10 MeV irradiation accelerator which uses a special configuration of the magnetic field to spread electron beam bunch directly and would remarkably improve the spread uniformity, simplify the accelerator and would be helpful to protect the titanium window and expand the irradiation area. Also, the technology could as well be used on the electron beam irradiation of those irregular structured objects of large size.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC012

First Experience of the HTS-II Dipole Type Magnets Development at NIIEFA

dipole, operation, controls, cryogenics

563

I.Yu. Rodin, V.M. Amoskov, E.N. Andreev, A.A. Dyomina, V.A. Glukhih, V.P. Kukhtin, E.A. Lamzin, E.R. Zapretilina
NIIEFA, St. Petersburg, Russia
V.A. Belyakov, S.E. Sytchevsky
Saint Petersburg State University, Saint Petersburg, Russia
S.V. Samoilenkov
JSC SuperOx, Moscow, Russia

The possibility to design, manufacture and test the dipole type magnets from the second generation high-temperature superconductors (HTS-II like YBCO and ReBCO) was demonstrated at the Efremov Institute. The paper describes available computation techniques, design approaches and manufacturing equipment, which could be used to meet the modern requirements for the magnets of accelerators, research equipment, magnet levitation systems etc. The manufacturing equipment comprises the winding lines and insulating devices to provide different configurations and insulating schemes of coils. Additionally, an equipment to produce the Roebel-cable for high current applications was procured and put in operation. As an example, the results of development of the HTC-II dipole type magnets for the different kind dummies of maglev systems are presented. The ReBCO tapes produced by JSC "SuperOx" (Moscow) were used. Up to 0.5 T magnets cooled by liquid nitrogen were designed as a part of levitation system consists of permanent, HTS-II and normal conductive magnets. Comprehensive tests verified the computation results and demonstrated the readiness to develop HTS-II dipole magnets under the customer requirements.

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC087

Stabilization of the Equilibrium Position of a Magnetic Control System with Delay

controls, feedback, simulation, electron

736

A.Yu. Aleksandrov, A.P. Zhabko, I.A. Zhabko
Saint Petersburg State University, Saint Petersburg, Russia
A.A. Kosov
ISDCT SB RAS, Irkutsk, Russia

Funding: The research was partially supported by the Saint Petersburg State University (project No. 9.37.157.2014), and by the Russian Foundation for Basic Research (grant Nos. 15-08-06680 and 16-01-00587-a).
Nonlinear oscillatory systems are widely applied for the modeling of charge particles motions in cyclotrons in neighborhoods of equilibrium orbits. They are also used for the analysis and synthesis of magnetic control devices. An actual problem for such systems is stabilization of their operating modes. In this report, analytical and numerical investigations of stability of the equilibrium position for a nonlinear oscillatory system are presented. The system can be treated as a mathematical model of magnetic suspension control system of a gyro rotor. A delay in the feedback control scheme and dissipative forces occurring due to energy losses at the interaction of the magnetic field with currents in the control loops are taken into account. Two approaches to the synthesis of stabilizing controls are proposed. The first one is based on the using of gyroscopic control forces. It is applicable in the case of essentially nonlinear homogeneous dissipative forces. The second approach is efficient for systems with linear dissipative forces. For this case, potential control forces are constructed. With the aid of a computer simulation of dynamics of closed-loop systems, a comparison of these approaches is fulfilled, and their features and conditions of applicability are determined.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)