Seabed Coil Using High Temperature Superconducting (HTS) Cable for Ship Magnetic Deperming | Chapter 4 | Fundamental Research and Application of Physical Science Vol. 3

 Ship attractive deperming has been conducted to lower the magnetization of ship for preventing the risk of being detected by weapons outfitted with drawing sensors. For deperming of the ship, moderate magnetic field search out be imposed on the capacity equivalent of the ship, with intermittently changing route and gradually decreasing force. We study a system of extreme electric current cable award the seabed for purpose of seagoing ship magnetic deperming. Due to the cord's resistance and powerful magnetic field degradation accompanying distance from the source, cables accompanying conventional conductors demand a big energy-producing station. For this purpose, High Temperature Superconducting cable is appropriate. We established a necessity for the cable's maximum current of 200 kA and allure length of 1200 m set on a bottom of the sea at a depth of 12 m. Our most current cable design is made up of a precious-earth-barium-law enforcement officer-oxide tape conductor stack that has existed bundled and cooled to 50 K accompanying helium gas. As a next step, cooling to 20 K utilizing the same fundamental concept of cable is proved to reduce the extreme cost of the tape conductor.

Author(s) Details:

M. Hirota,
Naval Ship M&UEP Research Committee, Tokyo-1130023, Japan.

Please see the link here: https://stm.bookpi.org/FRAPS-V3/article/view/10339

Optimal R-SFCL Location in Power Grid | Chapter 4 | Techniques and Innovation in Engineering Research Vol. 9

 Increased demand of capacity generation ability in distributed energetic power wholes has led to an increase in fault current levels surpassing the maximum  designed avoid ratings of the switchgear. In addition an unbalance in service level is also noticed during blame owing to the unification of AC and DC micro grids consisting of wind and photovoltaic farms. Resistive type Superconducting Fault Current Limiter (R-SFCL) maybe the best answer to suppress the overdone fault current questions and also to decrease voltage imbalance by improving the rise rate of the temporary recovery voltage in Smart grids. However, new concern in such uses is about the optimum locale of R-SFCL. In this work, we have modeled a HTS located R-SFCL using E-J traits of the superconductor and implemented it at differing key locations in a smart gridiron. A Graphical User Interface (GUI) of MATLAB is developed to evaluate the influence of the proposed system on an IEEE benchmarked four-machine two-district test system. Three chapter faults of various ratings are studied accompanying and without SFCL at various indispensable content of the smart grid, listening the power flows. Such studies on best location of SFCL are main to maximize the influence of fault alleviation in an extended network of Power Grid.

Author(s) Details:

Abhay Singh Gour,
Cryogenic Engineering Centre, Indian Institute of Technology, Kharagpur-721302, West Bengal, India.

Please see the link here: https://stm.bookpi.org/TAIER-V9/article/view/9986