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Current-limiting and power-flow control device
Current-limiting and power-flow control device
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机译:限流和潮流控制装置
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摘要
A current-limiting and power-flow control device according to the present invention includes a superconducting current-limiting element including a superconductor, a series capacitor, and a parallel circuit. The series capacitor is connected in series with the superconducting current-limiting element. The parallel circuit includes a reactor connected in parallel with a series circuit including the superconducting current-limiting element and the series capacitor. Accordingly, overcurrent at the time of occurrence of a fault causes transition of the superconductor of the superconducting current-limiting element to the normal conducting state, and thus causes autonomous current-limiting operation of the superconducting current-limiting element. Thus, application of an excessive load across the terminals of the series capacitor due to the aforementioned fault can surely be prevented. Accordingly, unlike the conventional device, it is unnecessary to install an arrester for protection of the series capacitor and the configuration of the current-limiting and power-flow control device can be simplified.
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