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Report of Contributions MT25 Conference 2017 - Timetable, Abstracts, Orals and Posters Report of Contributions https://indico.cern.ch/e/MT25-2017 MT25 Conferenc … / Report of Contributions 3D Electromagnetic Analysis of Tu … Contribution ID: 5 Type: Poster Presentation of 1h45m 3D Electromagnetic Analysis of Tubular Permanent Magnet Linear Launcher Tuesday, 29 August 2017 13:15 (1h 45m) A short stroke and large thrust axial magnetized tubular permanent magnet linear launcher (TPMLL) with non-ferromagnetic rings is presented in this paper. Its 3D finite element (FE) models are estab- lished for sensitivity analyses on some parameters, such as air gap thickness, permanent magnet thickness, permanent magnet width, stator yoke thickness and four types of permanent magnet material, ferrite, NdFeB, AlNiCO5 and Sm2CO17 are conducted to achieve greatest thrust. Then its 2D finite element (FE) models are also established. The electromagnetic thrusts calculated by 2D and 3D finite element method (FEM) and got from prototype test are compared. Moreover, the prototype static and dynamic tests are conducted to verify the 2D and 3D electromagnetic analysis. The FE software FLUX provides the interface with the MATLAB/Simulink to establish combined simulation. To improve the accuracy of the simulation, the combined simulation between the model of the control system in Matlab/Simulink and the 3D FE model of the TPMLL in FLUX is built in this paper. The combined simulation between the control system and the 3D FE modelof the TPMLL is built. A prototype is manufactured according to the final designed dimensions. The photograph of the developed TPMLL prototype with thrust sensor and the magnetic powder brake as the load are shown. It can be seen that the simulated voltage waveforms and current waveforms of the winding, the simulated frequency curves of the mover with the movement range from -6mm to 6mm are accordant with the tested results. Hence the correctness of established FE models is fur- ther verified, and the feasibility of proposed control strategy is testified. The frequency responseis rapid. Thus, the great dynamic performance of the prototype, effectiveness of the adopted control strategy and the corresponding combined simulations based on the 3D FE model are verified. Submitters Country China Primary author: Prof. CHEN, Hao (China University of Mining & Technology) Co-authors: Mr LIANG, Kun (China University of Mining and Technology); Ms NIE, Rui (China Uni- versity of Mining and Technology); Ms LIU, Xiao (China University of Mining and Technology) Presenter: Prof. CHEN, Hao (China University of Mining & Technology) Session Classification: Tue-Af-Po2.06 Track Classification: E1 - Motors October 6, 2021 Page 1 MT25 Conferenc … / Report of Contributions Errors and optics study of a perma … Contribution ID: 7 Type: Regular 15 minutes Oral Presentation Errors and optics study of a permanent magnet quadrupole system Thursday, 31 August 2017 11:15 (15 minutes) Laser-based accelerators are gaining interest in recent years as an alternative to conventional ma- chines. Nowadays, energy and angular spread of the laser-driven beams are the main issues in application and different solutions for dedicated beam-transport lines have been proposed. Inthis context a system of permanent magnet quadrupoles (PMQs) has been realized by INFN researchers, in collaboration with SIGMAPHI company in France, to be used as a collection and pre-selection system for laser driven proton beams. The definition of well specified characteristics, both interms of performances and field quality, of the magnetic lenses is crucial for the system realization, for an accurate study of the beam dynamics and the proper matching with a magnetic selection sys- tem already realized. Hence, different series of simulations have been used for studying the PMQs harmonic contents and stating the mechanical and magnetic tolerances in order to have reasonable good beam quality downstream the system. In this contribution is reported the method used for the analysis of the PMQs errors and its validation. It will be also shown that the method is totally general and can be extended to any kind of magnet and/or error sources. Finally, the experimental characterization of the PMQ system, using real laser-accelerated beams, will be shortly presented. Submitters Country Czech Republic, Italy Primary authors: Mr SCHILLACI, Francesco (Institute of Physics Czech Academy of Science, ELI-Beamlines); Dr MAGGIORE, Mario (LNL - INFN) Co-authors: Dr CIRRONE, G.A.P. (INFN-LNS); Dr CUTTONE, Giacomo (INFN-LNS) Presenter: Mr SCHILLACI, Francesco (Institute of Physics Czech Academy of Science, ELI-Beam- lines) Session Classification: Thu-Mo-Or33 Track Classification: G7 - Multi-Physics Design and Analysis October 6, 2021 Page 2 MT25 Conferenc … / Report of Contributions Conceptual Design and Performan … Contribution ID: 8 Type: Poster Presentation of 1h45m Conceptual Design and Performance Evaluation of a 35 kV / 500 A Flux-Coupling-Type SFCL for Protection of a DFIG-Based Wind Farm Tuesday, 29 August 2017 13:15 (1h 45m) For the flux-coupling-type superconducting fault current limiter (SFCL) which is composed ofcou- pling transformer (CT), superconducting component (SC) and controlled switch, it can be regarded as a typical application of magnet technology. As the flux-coupling-type SFCL offers many techni- cal advantages, such as higher flexibility, better controllability and lower operation loss, this paper conducts its utilization in improving the transient performance of a 15 MW class doubly fed induc- tion generator (DFIG)-based wind farm. In normal condition, the SFCL shows the non-inductive coupling and does not affect the wind farm. In case of a fault, the electromagnetic properties of the SFCL will be changed, and the current-limiting impedance will be activated and connected in series with the main circuit. In light of the wind power parameters, the conceptual design, electro- magnetic analysis and performance evaluation of a 35 kV / 500 A class SFCL are carried out. From the results, the CT achieves the maximum magnetic field in the event of that the fault current reaches to its peak value, and the AC loss of the SC is controlled to a lower level. The demon- strated electromagnetic properties of the SFCL meet the requirements, and using the SFCL in the wind farm enables to limit the fault current, compensate the voltage sag and mitigate the power fluctuation. Consequently, the robustness of the DFIG-based wind farm against the short-circuit fault is well enhanced, and the applicability of the conceptual design of the SFCL is verified. Submitters Country China Primary authors: Dr CHEN, Lei (Wuhan University); Prof. CHEN, Hongkun (Wuhan Univer- sity); Dr HE, Huiwen (China Electric Power Research Institute); Mr WANG, Lei (China Electric Power Research Institute); Dr XU, Ying (Huazhong University of Science and Technology); Dr REN, Li (Huazhong University of Science and Technology) Presenters: Dr CHEN, Lei (Wuhan University); Dr XU, Ying (Huazhong University of Science and Technology) Session Classification: Tue-Af-Po2.07 Track Classification: E6 - Transformers and Fault Current Limiters October 6, 2021 Page 3 MT25 Conferenc … / Report of Contributions Conceptual Design and Evaluation … Contribution ID: 9 Type: Poster Presentation of 1h45m Conceptual Design and Evaluation of a HTS Magnet for a SMES Used in Improving Transient Performance of a Grid-Connected PV System Monday, 28 August 2017 13:15 (1h 45m) Superconducting magnetic energy storage (SMES) enables to offer many technical advantages, such as high energy efficiency, quick response and great controllability, and the SMES applications in distributed renewable energy sources are critical for power systems. This paper suggests a SMES to enhance the transient performance of a 100 kW grid-connected photovoltaic (PV) generation system, and conducts the conceptual design and performance evaluation. Considering the PV fluctuation and transient compensation during a fault, the stored energy of the SMES is designedas 80 kJ, and the Yttrium Barium Copper Oxide (YBCO) tapes made by the Superpower Company are adopted. The high-temperature superconducting (HTS) magnet uses the single-solenoid structure, and its detailed parameters including critical current, tape length, parallel/perpendicular magnetic field are optimized by the genetic algorithm. In order to achieve a comprehensive performance evaluation, not only the effects of the SMES on the PV generation system, but also the magnetic field, mechanical stress and operation loss of the SMES are assessed in the simulations. From the results, using the SMES can effectively improve the fault ride-through (FRT) capability and smooth the power fluctuation of the PV generation system. During the transient process ofthe power exchange, the maximum stress of the SMES magnet is within the tolerable allowance, and the mechanical strength of the YBCO tapes can be well ensured. Moreover, the operation loss of the SMES magnet is controlled to an acceptable level, and the joule heat caused by the charging and discharging of the SMES is limitable. The demonstrated design and evaluation will lay a good foundation for the prototype manufacture and experimental testing in the future. Submitters Country China Primary authors: Dr CHEN, Lei (Wuhan University); Prof. CHEN, Hongkun (Wuhan Univer- sity); Prof. YANG, Jun (Wuhan University); Dr HE, Huiwen (China Electric Power Research Insti- tute); Mr WANG, Lei (China Electric Power Research
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