GB/Z 163.4-2025 High-voltage direct current(HVDC) systems—Guidance to the specification and design evaluation of AC filters—Part 4:Equipment
GB/Z 163.4-2025 High-voltage direct current(HVDC) systems—Guidance to the specification and design evaluation of AC filters—Part 4:Equipment
Basic Information
Scope
This document provides guidance for determining the basic data of AC filters and their components in high-voltage direct current (HVDC) systems, such as steady-state setpoints, transient stress and setpoints, losses, design issues and special applications, protection, audible noise, seismic requirements, equipment design, and test parameters.
This document is applicable to AC-side filters used in high-voltage DC systems with line-commutated converters (LCCs) to suppress harmonic distortion and audible sensitive frequency interference. It is not applicable to filters for power line carrier (PLC) and radio interference spectra. AC filter parameters for high-voltage DC systems based on voltage-source converters (VSCs) are used for reference.
Note: High-voltage DC systems based on voltage-source converters (VSCs) are also known as flexible DC systems.