Electric field simulation method and device for flexible direct-current converter valve tower and storage medium

Abstract

The invention discloses an electric field simulation method for a flexible direct-current converter valve tower. The electric field simulation method comprises the following steps: determining a key part according to the structure of the flexible direct-current converter valve tower; establishing a flexible direct current converter valve tower simulation model, and performing simplification according to the key part; the valve tower simplified model is split; determining dielectric constants and resistivity of different materials, and applying the dielectric constants and resistivity to a water path part of the valve tower subdivision model; extracting an AC / DC composite voltage, and carrying out segmented loading; and obtaining electric field intensities at different moments by adopting acalculation method of a whole-cycle transient field. According to the electric field simulation method for the flexible direct-current converter valve tower, the actual operation condition of the flexible direct-current converter valve tower is considered, mutual influence between a water path and the valve tower can be considered, and the accuracy of simulation calculation of overall electric field distribution of the flexible direct-current valve tower is improved. The invention further discloses an electric field simulation device of the flexible direct-current converter valve tower and astorage medium.

Description

technical field [0001] The invention relates to the field of simulation technology, in particular to an electric field simulation method, device and storage medium for a valve tower of a flexible DC converter valve. Background technique [0002] The flexible DC converter valve is the core component of the converter station of the UHV flexible DC transmission project, and its operating conditions are extremely complex. In order to verify the rationality of the electromagnetic design of the flexible DC converter valve and ensure the reliability and stability of the equipment operation, it is necessary to establish a numerical simulation model of the valve tower of the flexible DC converter valve. [0003] In the prior art, the method of simulation research on the valve tower of the flexible DC converter valve is: use the electrostatic field solver to perform simulation calculation, and calculate the electric field distribution law under its operating condition by applying the ...

AI Technical Summary

Problems solved by technology

[0005]Under normal operating conditions, the operating voltage contains a large number of AC and DC components and some high-frequency voltage components, so the simulation results of the simulation calculation using the electrostatic field solver The accuracy rate is low; in addition, the influence relationship between the waterway and the valve tower is not considered, and there are limitations

Images