Design and Verification of Full Redundancy Valve Control System for Ultra-High Voltage Direct Current Converter Valve
Year: 2026
Type: conference-paper
Abstract: To address the problems of insufficient redundancy, low power margin of optical circuits, and weak online maintenance capability in traditional UHVDC converter valve control systems (VCS), this paper proposes a full-redundancy valve control system design scheme based on optical splitters. Through independent cabinet panel configuration, full-dimensional redundancy covering power supply, communication, triggering, and heat dissipation, and high-margin optimization of optical circuits, the scheme realizes online card replacement and fault tolerance of converter valves without shutdown. Theoretical calculations and laboratory tests show that the power margin of the system's trigger optical circuit reaches 16.91 dB, and the margin of the inspection optical circuit is 11 dB, both meeting the design requirement of$\geq 10 ~\text{dB}$. This study provides a mature technical solution for the upgrading of valve control systems in UHVDC projects.
Institution: State Grid Corporation of China (China)
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7203482782