High-voltage direct-current power transmission commutation transient low-voltage test method and circuit thereof
A high-voltage direct current transmission and test method technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of low test efficiency and unreliable test process, and achieve reliable test process, high test efficiency, and simple implementation Effect
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[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0026] Circuit embodiment of the present invention:
[0027] Such as figure 2 As shown, the circuit of the transient low voltage test method of the HVDC converter valve of the present invention mainly includes a high-voltage voltage source, a low-voltage current source, a shock capacitor Cs, a first auxiliary control valve Da4, a second auxiliary control valve Da3, a third auxiliary control valve Auxiliary control valve Da5, high pressure isolation valve Daux, commutation reactor Lc, reactor Ls and sample valve Vt.
[0028] The two ends of the high-voltage voltage source are connected in parallel with the third auxiliary control valve Da5 and the shock capacitor Cs. The reactor Ls is connected in series between Da5 and Cs through the positive pole of the high-voltage voltage source. The first auxiliary control valve Da4 and the second auxiliary control valv...
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