Practical design of superconducting generator—electrical characteristics equations
作者:
Naoki Maki,
期刊:
Electrical Engineering in Japan
(WILEY Available online 1994)
卷期:
Volume 114,
issue 1
页码: 88-101
ISSN:0424-7760
年代: 1994
DOI:10.1002/eej.4391140109
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: Superconducting generator;electrical characteristics;generator constants;electromagnetic shield effect;fundamental equation for voltage
数据来源: WILEY
摘要:
AbstractA superconducting generator (SCG) consists of a nonmagnetic cryogenic rotor, which contains a super‐conducting field winding cooled by liquid helium, and an airgap armature winding, which makes it possible to obtain a high magnetic field in the airgap. Since the SCG construction differs from that of the conventional generator, practical application requires that its electrical and mechanical design methods be established.This paper describes electrical characteristics equations of the SCG, electromagnetic shield characteristics of double dampers and proof test results of a 50‐MVA experimental SCG. Equations for the generator parameters (voltages, output capacity, reactances, time constants, flux densities), which are useful for the practical design of the SCG, are derived from two‐dimensional electromagnetic analysis considering winding thickness and the edge effect. From comparison with measured and calculated values of no‐load, sudden 1–3 phase short‐circuit and slip extended tests, these equations were confirm
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