Superconducting fault current limiter-based flexible direct-current transmission system current-limiting electric reactor selection method
A technology of flexible DC power transmission and superconducting current limiter, which is applied in the direction of emergency protection circuit devices, electrical components, circuit devices, etc. for limiting overcurrent/overvoltage, and can solve the impact of system stability, superconducting current limiter Low impedance and other issues
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[0047] The selection of the current-limiting reactance of the flexible direct current transmission system based on the superconducting current limiter proposed by the present invention includes the following steps:
[0048] (1) Construct a double-ended modular multi-level flexible DC transmission system with a superconducting current limiter. The structure is as follows figure 1 As shown, the double-ended flexible DC transmission system includes the first AC line simulation impedance Z 1 , The second AC line simulated impedance Z 2 , The first modular multilevel flexible DC converter MMC 1 , The second modular multilevel flexible DC converter MMC 2 , the first DC circuit breaker DCB 1 , the second DC circuit breaker DCB 2 , the third DC circuit breaker DCB 3 , the fourth DC circuit breaker DCB 4 , the first current limiting reactor L d1 , the second current limiting reactor L d2 , The third current limiting reactor L d3 , the fourth current limiting reactor L d4 and ...
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