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公开(公告)号：US08774883B2
公开(公告)日：2014-07-08
申请号：US13310181
申请日：2011-12-02
IPC分类号： H01P1/203
CPC分类号： H01B12/02 , H01B12/16 , H02G15/34 , H02J3/36 , H02J2003/365 , Y02E40/648 , Y02E60/60
摘要： A DC superconducting coaxial transmission system provides electrical transmission of 5,000 megawatts of energy while simultaneously delivering liquid hydrogen. The transmission system includes a coaxial transmission segment including an inner superconductor, an outer superconductor disposed in surrounding relation to the inner conductor, and a dielectric insulator disposed between the inner superconductor and the outer superconductor. Liquid hydrogen surrounds the superconductors. Three phase transformers and poly phase rectifier/inverters provide a DC voltage source to the superconductors from the electrical grid. In one embodiment, a switching circuit connected between the voltage source and the superconductor injects a cancellation current component into the direct current flow. The cancellation current component is polarized to flow in a direction opposite to the direct current flow to produce a current zero, thus enabling safe interruption of the high DC current while minimizing the magnitude of transient voltages during switching.
摘要翻译： DC超导同轴传输系统提供5,000兆瓦能量的电传输，同时输送液态氢。 传动系统包括一个同轴传动段，它包括一个内部超导体，一个围绕内部导体设置的外部超导体，以及一个布置在内部超导体和外部超导体之间的绝缘绝缘体。 液态氢围绕超导体。 三相变压器和多相整流/逆变器为电网的超导体提供直流电压源。 在一个实施例中，连接在电压源和超导体之间的开关电路将消除电流分量注入到直流电流中。 消除电流分量被极化以在与直流电流相反的方向上流动以产生电流零，从而使得能够在最小化切换期间的瞬态电压的幅度的情况下安全地中断高直流电流。
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公开(公告)号：US20120142537A1
公开(公告)日：2012-06-07
申请号：US13310181
申请日：2011-12-02
CPC分类号： H01B12/02 , H01B12/16 , H02G15/34 , H02J3/36 , H02J2003/365 , Y02E40/648 , Y02E60/60
摘要： A DC superconducting coaxial transmission system provides electrical transmission of 5,000 megawatts of energy while simultaneously delivering liquid hydrogen. The transmission system includes a coaxial transmission segment including an inner superconductor, an outer superconductor disposed in surrounding relation to the inner conductor, and a dielectric insulator disposed between the inner superconductor and the outer superconductor. Liquid hydrogen surrounds the superconductors. Three phase transformers and poly phase rectifier/inverters provide a DC voltage source to the superconductors from the electrical grid. In one embodiment, a switching circuit connected between the voltage source and the superconductor injects a cancellation current component into the direct current flow. The cancellation current component is polarized to flow in a direction opposite to the direct current flow to produce a current zero, thus enabling safe interruption of the high DC current while minimizing the magnitude of transient voltages during switching.
摘要翻译： DC超导同轴传输系统提供5,000兆瓦能量的电传输，同时输送液态氢。 传动系统包括一个同轴传动段，它包括一个内部超导体，一个围绕内部导体设置的外部超导体，以及设置在内部超导体和外部超导体之间的绝缘绝缘体。 液态氢围绕超导体。 三相变压器和多相整流/逆变器为电网的超导体提供直流电压源。 在一个实施例中，连接在电压源和超导体之间的开关电路将消除电流分量注入到直流电流中。 消除电流分量被极化以在与直流电流相反的方向上流动以产生电流零，从而使得能够在最小化切换期间的瞬态电压的幅度的情况下安全地中断高直流电流。
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