Convertor station containing resistance type superconducting current limiter and direct current circuit breaker, and direct current fault processing strategy thereof
A DC circuit breaker and superconducting current limiter technology, which is applied in the direction of power transmission AC network, emergency protection circuit device, electrical components, etc., can solve the commutation failure of the inverter side system, the interruption of DC transmission power, the occupation Large ground area and other problems, to achieve the effect of solving the requirements of too long recovery time and reducing the breaking current
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[0045] In order to describe the present invention more specifically, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0046] In the converter station of the present invention, which contains a resistive superconducting current limiter and a DC circuit breaker, the positive DC outlet line and the negative DC outlet line of the converter station first need to be connected to the positive DC bus bar and the negative DC bus bar respectively through mechanical switches; Both the busbar and the negative DC busbar need to pass through a smoothing reactor, a DC circuit breaker, and a resistive superconducting current limiting device, and then be connected to the positive and negative DC lines respectively.
[0047] As shown in Figure 1(a), when the converter station adopts a true bipolar structure, both positive and negative poles have independent converters, and the converters a...
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