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Julien Vialle (Institut Néel CNRS)16/11/2021, 13:15Invited Poster
A 12 T REBCO solenoid with a 192 mm wide inner bore tapes was designed in the framework of the BOSSE Project, using 12 mm-wide isolated tape as conductor. This 814 mm high coil can be used as a compact 1 MJ – 2 MW inductive energy storage, with an 850 A rated current. One of the objectives was to overcome the present record of mass energy density, held by a NbTi coil (13 kJ/kg), and reach 20...
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Toshihiro Komagome (MAYEKAWA MFG. Co., Ltd.)16/11/2021, 13:15Poster
Double pancake (DP) coils for a SMES coil have been developed using MgB2 Rutherford type superconductor. The DP coils are indirectly cooled in liquid hydrogen in order that the current carrying region such as conductors and leads cannot contact directly with the liquid hydrogen. However the cooling efficiency of the indirect cooling system is less than that of the direct immersed cooling...
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Ms Yue Wu (Beijing Jiaotong University)16/11/2021, 13:15Poster
A 6.5 MVA/25 kV high temperature superconducting (HTS) traction transformer for the Chinese high-speed train was proposed in earlier works aiming to replace the oil-based transformers while achieve higher efficiency, lighter weight, and minimized volume. The high targeted efficiency of the transformer (> 99%) makes AC loss reduction a vital issue. HTS coated conductors generally exhibit...
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Dr Ryota Inoue (Okayama University)16/11/2021, 13:15Poster
A floating offshore wind power generation has been investigated to reduce the greenhouse gas emissions in Japan. When the floating offshore wind farm transmits AC electric power to the commercial power system on the land using a copper cable, it is necessary to increase the voltage by an offshore transformer facility in order to reduce the transmission loss of the copper cable. However, it is...
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Wenyong Guo (Institute of Electrical Engineering, Chinese Academy of Science)16/11/2021, 13:15Poster
With the increase of the permeability of renewable energy, the equivalent inertia and damping of the power system gradually decrease, which makes the power system stability problem more and more prominent. By emulating the electromechanical transient characteristics of synchronous generators, the virtual synchronous generator (VSG) technology enables the renewable power generator to have the...
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Wei Pi (North China Electric Power University), Zhaoyu Zhang (North China Electric Power University), Yu Yang (North China Electric Power University), Ziyuan Sun (NCEPU), Ruiqi Wang (North China Electric Power University)16/11/2021, 13:15Poster
The composite method is an effective way to obtain superconductors with better performance. Through the combination of the first and second generation high temperature superconductors, the stability of superconductors can be improved, the engineering current density can be increased, and the AC loss of superconductors can be reduced. In this paper, a HTS transformer with first and second...
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Xinyu Zou (Huazhong University of Science and Technology)16/11/2021, 13:15Poster
Abstract—Superconducting magnetic energy storage system (SMES) has the advantages of fast response, four quadrant adjustable active and reactive power. It can improve the stability of power system, improve power quality, be used as distributed power system and energy management in power system. The research and development of large capacity energy storage magnet is an important...
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Masashi Sumida (Kyushu University)16/11/2021, 13:15Poster
We propose the electric propulsion system which are composed of 10 MW superconducting generators, superconducting transformers, superconducting cables, and 2 MW superconducting motors. The design study of 2 MW fully superconducting motors with a rated voltage of 1 kV is being conducted. On the other hand, the 10 MW fully superconducting synchronous generators were designed so as to operate at...
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Mr Yu Miyamoto (Waseda University)16/11/2021, 13:15Poster
Superconducting magnetic energy storage (SMES) has the advantages of high efficiency, longevity, and excellent instantaneous response with high power. However, it has the disadvantage that its storage density is extremely small compared to other power storage devices. The no-insulation coil (hereinafter referred to as "NI coil") is expected to be a winding method that can achieve both high...
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Dr Qingquan Qiu (Institute of Electrical Engineering, Chinese Academy of Sciences)16/11/2021, 13:15Poster
LN2/CF4 mixture would be an effective coolant and insulating medium of high-temperature superconducting (HTS) magnets and power devices, which could provide a cryogenic environment in the temperature range of 50 to 100 K and serve as a liquid dielectric. In this paper, recent progress concerning the LN2/CF4-cooled HTS power devices including superconducting fault current limiter (SFCL) and...
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Mr Xiaoyang Tian (HKU)16/11/2021, 13:15Poster
With ever-increasing requirements in a wide area of detection and high accuracy of measurement, it is necessary for the sensor networks to be built with extensive coverage and often installed in some places that are tough to be reached, such as underground or underwater. Under these circumstances, the costs of periodical maintenance can be extremely high. To solve this problem, a multi-input,...
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Mr Wenxin Li (Tianjin University)16/11/2021, 13:15Poster
Our research has shown that an energy conversion/storage device composed of a permanent magnet and a superconductor coil has superior performance. In order to improve the conversion efficiency and energy storage capacity of this device. An effective method to enhance the interaction behavior between a permanent magnet and a closed superconductor coil is proposed in this paper. The functions...
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Dr Ryota Inoue (Okayama University)16/11/2021, 13:15Poster
A Wireless Power Transmission (WPT) system for a railway vehicle has been investigating to reduce the greenhouse gas emissions in a diesel vehicle. Since the WPT system for the railway vehicle is required to transmit the electric power of several hundred kW in a short time, it is difficult to suppress heat generation by the internal resistance of a copper coil. Therefore, we have investigated...
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Binyi Tian16/11/2021, 13:15Poster
In recent years, the application of superconducting technology in electrical field is becoming more and more popular and the HTS transformer has become a hot topic because of its small size, light weight and low loss. The thermal stability is a critical issue for the application of the HTS transformer. In order to study the temperature characteristic, a 500 kVA HTS transformers is designed....
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Jing Shi (Huazhong University of Science and Technology)16/11/2021, 13:15Poster
Superconducting Magnetic Energy Storage (SMES) has the advantages of fast response speed, large energy storage density and low loss, which is suitable for dynamic power compensation of power systems. During operation, the superconducting magnet exchanges power with the AC grid through the power conditioning system (PCS). The PCS generally adopts a PWM converter based on a high-frequency ...
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Ming Li (Institute of Plasma Physics, Hefei Institutes of Physical Scien)16/11/2021, 13:15Poster
For fluctuation suppression and energy compensation of the power system of the particle accelerators Booster and Nuclotron of NICA complex at JINR, 3 inductively coupled SMES coils are adopted. ASIPP is responsible for one of the three coils with 1 MJ energy storage. The inner diameter of the SMES coil is optimized to be 680 mm. The operating current is about 6 kA level and the pulse period is...
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Wenyong Guo (Institute of Electrical Engineering, Chinese Academy of Science)16/11/2021, 13:15Poster
The intermittent characteristics and low system inertial are two major problems for the renewable energy sources (RESs) dominated power system. This paper proposes the novel idea of integrating the wind and photovoltaic power generators with a superconducting magnetic system (SMES) as a whole to behave as a grid-forming renewable energy system. The proposed grid forming system can provide...
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