特高压直流输电控制系统结构配置分析

为了提高特高压直流输电系统可靠性，对特高压直流控制系统结构配置进行了分析。在常规直流输电控制系统的基础上提出3种特高压直流控制系统的结构配置方案，并在主机数、负载率、可靠性、信息交换量和系统复杂度方面进行了对比，得到双极/极控制与高低压12脉动阀组控制独立设置的直流控制系统优化配置方案。通过对控制系统进行分层设置及软件合理分布，降低了控制系统各部分之间的耦合，提高了系统可靠性。该优化配置方案在±800 kV特高压仿真系统控制样机上得到了验证，研究成果将运用于实际工程，以满足特高压直流系统高可靠性的要求。

Analysis of Structure and Configuration for UHVDC Transmission Control System

In order to improve the reliability of ultra high voltage direct current(UHVDC) transmission system,the structure and configuration design for UHVDC control system are discussed.Based on the experiences of conventional HVDC control system,three structure and configuration design schemes for UHVDC control system are presented and compared in computer number,load rate,reliability,information interchange amount and system complexity.The optimum design scheme of separating of bipolar/pole control and valve groups control is proposed.By effective layering of control system and reasonable distributing of software,the coupling among subsystems is decreased and the reliability is improved.The scheme is verified by the prototype of UHVDC control system.The research results would be used in UHVDC projects to meet the requirements of the UHVDC.