Analysis of the Application of Low-Frequency Inter- Harmonic Monitoring in DC Converter Stations Based on Power Quality Monitoring Devices
Articles

Analysis of the Application of Low-Frequency Inter- Harmonic Monitoring in DC Converter Stations Based on Power Quality Monitoring Devices

Rui Xia
CYG Contron Co., Ltd., Zhuhai 519085, China
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Keywords

Low frequency harmonic
Damping controller
Sub-synchronous oscillation

DOI

10.26689/jera.v9i7.13634

Submitted : 2025-12-30
Accepted : 2026-01-14
Published : 2026-01-29

Abstract

This article introduces an application case of monitoring low-frequency inter-harmonic signals in a DC converter station project using power quality monitoring devices, effectively providing data support for the sub-synchronous oscillation problems caused by the high-voltage DC system.

References

Wang J, E S, 2009, Causes and Solutions of Sub-Synchronous Oscillation in the Gaoling Converter Station Project. Northeast Electric Power, 2009(11): 20–21.

Gao B, 2010, Design and Implementation of a Damped Controller for Additional Sub-Synchronous Oscillations in High-Voltage Direct Current Transmission Systems. High Voltage Technology, 36(2): 501–506.