Method, system and device for calculating sequence parameters of superconducting cable power transmission line and medium
A technology of superconducting cables and transmission lines, applied in the direction of measuring resistance/reactance/impedance, measuring electrical variables, impedance measurement, etc., can solve problems such as changing the zero-sequence current of the power grid system
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[0212] Based on the method of the present invention, according to the parameters in Table 1 combined with the finite element analysis method and the circuit analysis method, the sequence parameters of the superconducting transmission line can be calculated and obtained, as shown in Table 2.
[0213] Table 1 Structural parameters and electrical properties of superconducting cables
[0214]
[0215]
[0216] When the value of the shielding layer resistance is 0, the sequence parameters of the superconducting transmission line are obtained, and then the relationship between the positive sequence reactance of the cable and the shielding layer resistance is obtained by changing the value of the shielding layer resistance (such as Image 6 ) and the relationship between the zero-sequence reactance of the cable and the resistance of the shielding layer (such as Figure 7 ).
[0217] The accuracy of the positive-sequence impedance parameters and zero-sequence impedance parameters...
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