The dielectric insulation of superconducting power cables
Article Abstract:
Advances in electrical insulation have been responsible for the constant improvement in how underground power transmission cables perform. Cable designers now must decide how to achieve an operating life of 40 or more years. At the same time, they must decide how to increase the electric stress, reduce the dielectric losses, and meet the constraints on the mechanical properties of the insulation. Superconducting cables are part of a class called 'forced-cooled' cables, as opposed to naturally cooled, which is used by most conventional cable systems. The design of a superconducting cable requires the conductors be directly cooled. Many designs have the coolant as a component of the cable insulation itself. Almost all superconducting cable designs use cryogens to determine the dielectric performance; these cryogens remain gaseous or liquid at the operating temperature of the cable. Intermetallic superconducting cables use helium.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1991
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Superconducting Magnetic Energy Storage
Article Abstract:
Superconducting magnetic energy storage (SMES) involves no conversion of the electrical energy, but is stored directly as current. This provides high storage efficiency and fast response to power demands. Development of superconductivity is reviewed and the design and function of the components of an SMES system is examined.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1983
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30-MJ Superconducting Magnetic Energy Storage System for Electric Utility Transmission Stabilization
Article Abstract:
A superconducting magnetic energy storage (SMES) system damps power oscillations on the Western United States Power System. Energy with frequencies from 0.1 to 1.0 Hz and power amplitudes up to 11 MW flows in and out of the 30-MJ inductor. The system is examined from design to experimental operation.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1983
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