A higher Q factor indicates that the inductor has a low energy loss, meaning it is more efficient in its energy storage and release in the magnetic field. Conversely, a lower Q factor indicates higher energy losses, primarily due to the resistance of the coil.
[pdf] A current flowing through a conductor generates a around the conductor, which is described by . The total through a circuit is equal to the product of the perpendicular component of the magnetic flux density and the area of the surface spanning the current path. If the current varies, the through the circuit changes. By , any change in flux through a circuit induces an (EMF, ) in the circuit, proportional to t. Electromagnetic torques generated by mutual inductance between energized coils are widely used in aerospace applications, especially for solar panel deployment. Accurate and rapid acquisition of mutual inductance between coils is essential to provide the necessary electromagnetic force.
[pdf] Superconducting magnetic energy storage (SMES) systems in the created by the flow of in a coil that has been cooled to a temperature below its . This use of superconducting coils to store magnetic energy was invented by M. Ferrier in 1970. A typical SMES system includes three parts: superconducting , power conditioning system and cryo. This system includes the superconducting coil, a magnet and the coil protection. Here the energy is stored by disconnecting the coil from the larger system and then using electromagnetic induction from the magnet to induce a current in the superconducting coil.
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