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High-temperature superconducting energy storage magnet

A technology of superconducting energy storage and high-temperature superconducting, which is applied in superconducting magnets/coils, the usage of superconducting elements, magnetic objects, etc., and can solve problems such as low current-carrying capacity, increased tape consumption, and increased volume.

Pending Publication Date: 2022-07-12
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current-carrying capacity of conventional high-temperature superconducting energy storage magnets is not high, so the storage energy is limited. If you want to expand the storage energy, you need to increase the inductance, increase the amount of strip material, increase the volume, and increase the cooling cost

Method used

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Embodiment Construction

[0011] A high temperature superconducting energy storage magnet will be explained in detail below with reference to the accompanying drawings and specific embodiments.

[0012] figure 1 It is a schematic diagram of the conductor structure of the energy storage coil wound in a high temperature superconducting energy storage magnet provided by the present invention. 1 The quasi-isotropic conductor (QIS) adopts the second-generation high-temperature superconducting tape, which is composed of 4 strands of tapes stacked by 80 superconducting tapes rotated 90° in the same direction, and the cross-section is square. 2 Metal fillers, which are four arc-shaped copper or aluminum fillers, play the role of fixed support. 3 The copper wire is to prevent the superconducting strip of the inner QIS from loosening, play a fixed role, play a supporting role for the external spiral strip, and also play the role of quench shunt. 4 Spiral tape is a second-generation superconducting tape that is...

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Abstract

The invention discloses a high-temperature superconducting energy storage magnet, and belongs to the technical field of high-temperature superconducting. The device is composed of a copper framework, a superconducting energy storage coil and a fixing device. The superconducting energy storage coil is a single solenoid type magnet formed by winding a quasi-isotropic conductor (Like-QIS). Wherein the quasi-isotropic conductor is mainly composed of an internal twisted quasi-isotropic conductor (QIS) and an external spiral strip. Compared with a common magnet formed by winding a high-temperature superconductive stacked strip in an external field, the magnet has higher engineering current density, and is easier to bend than a QIS. A power grid can be quickly responded, and high power is instantly released. When transient voltage drop or sudden rise and transient active power imbalance occur in the power grid, energy can be exchanged from the superconducting energy storage coil and converted into alternating current through the inverter, active power or reactive power which can be flexibly adjusted is output to the power grid, and therefore transient voltage stability and active power balance of the power grid are guaranteed.

Description

technical field [0001] The invention relates to the technical field of high temperature superconductivity, in particular to a high temperature superconducting energy storage magnet. Background technique [0002] A series of energy storage technologies currently exist, such as superconducting magnetic energy storage (SMES), compressed air energy storage (CAES), fluid batteries, flywheel energy storage systems, pumped hydro energy storage systems, and supercapacitors. In the future development of smart grid, on the one hand, in order to complete sufficient energy reserves, it is urgent to accommodate more new energy power generation systems; reliability of power supply. At present, superconducting magnetic energy storage (SMES) is the most widely studied form of superconducting energy storage in various countries. Formed into a ring-shaped core component, a high-strength magnetic field will be generated when current passes through. Due to the superconducting zero-resistance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F6/06
CPCH01F6/06Y02E40/60
Inventor 张馨丹王银顺王建宏李继春夏芳敏
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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