Application of superconductivity electric power system ppt

What is superconductivity?

Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature. This power-point presentation include 1. Introduction to Superconductors 2. Discovery 3. Properties 4. Important factors 5. Types 6.

What are the properties of superconductors?

It then discusses key properties of superconductors including zero electrical resistance, the effects of impurities and pressure, isotope effects, magnetic field effects, critical current density, and the Meissner effect. It categorizes superconductors as either type 1 or type 2 and provides examples of each.

How do superconductors work?

Superconductors and their applications. Electrical resistance Using the flow analogy, electrical resistance is similar to friction. For water flowing through a pipe, a long narrow pipe provides more resistance to the flow than does a short fat pipe.

What are high-temperature superconductors?

High-temperature superconductors were discovered in 1986 capable of superconductivity above liquid nitrogen temperatures. Potential applications of superconductors include maglev trains, MRI machines, and power cables with reduced transmission losses. This document discusses superconductors and their properties.

What is superconducting magnetic energy storage (SMES)?

(1) When the short is opened, the stored energy is transferred in part or totally to a load by lowering the current of the coil via negative voltage (positive voltage charges the magnet). The Superconducting Magnetic Energy Storage (SMES) is thus a current source [2, 3]. It is the “dual” of a capacitor, which is a voltage source.

What is a large-scale superconductivity magnet?

Keywords: SMES, storage devices, large-scale superconductivity, magnet. Superconducting magnet with shorted input terminals stores energy in the magnetic flux density (B) created by the flow of persistent direct current: the current remains constant due to the absence of resistance in the superconductor.