Flexible direct current converter station valve hall-direct current field combined building structure

Abstract

The invention discloses a flexible direct current converter station valve hall-direct current field combined building structure. The flexible direct current converter station valve hall-direct current field combined building structure comprises a combined building chamber as well as a converter station valve hall and a direct current field which are arranged in the combined building chamber; the converter station valve hall comprises converters arranged in parallel; the direct current field comprises a direct current field pole bus as well as an arrester, a voltage measuring device, a current measuring device and a reactor which are connected with the direct current field bus; the converter station valve hall and the direct current field are arranged at different sides in the combined building chamber of which the indoor environment is micro positive voltage; a metal shielding net is laid at the wall surfaces in the combined building chamber. The combined building of the converter station valve hall and the direct current field is firstly put forward, the electric equipment configuration of the valve hall and the direct current field is unified and harmonized, the operation environment and electromagnetic interference prevention in the combined building chamber are comprehensively considered, the occupation area of a flexible direct current converter station is reduced and the soil use rate is improved; the flexible converter station direct current field is constructed indoors, so the influence of external environment to electrical equipment of the direct current field is reduced, and the reliability of the electrical equipment is improved.

Description

technical field [0001] The invention relates to the technical field of flexible DC power transmission, in particular to a valve hall and DC field building structure of a flexible DC converter station. Background technique [0002] Flexible DC transmission is a high-voltage direct current transmission technology (VSC-HVDC) based on voltage source converters. Half-controlled thyristor-based current source converters in direct current transmission. Compared with conventional DC transmission using non-shutdown thyristors, flexible DC transmission, as a new generation of DC transmission technology, has the advantages of fast system response, good controllability, and flexible operation mode. [0003] The DC converter station is the most important component of the DC transmission technology. Conventional converter stations often need to consider bipolar operation, unipolar ground circuit operation, unipolar metal circuit operation and the above corresponding step-down operation ...

AI Technical Summary

Problems solved by technology

The DC field and the valve hall of the converter station respectively occupy a large area, which is not conducive to the rational use of land, and the external environment will affect the leakage of the DC field electrical equipment outside

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