海上油气平台用柔性直流输电系统分析与设计

Analysis and Design of VSC-HVDC System for Offshore Oil Platform

在海上油气田输电系统中采用柔性直流输电方式,可有效提高输电距离、减小设备占地面积、提高运行可靠性,具有较大的发展前景。文章探讨了柔性直流输电技术在某海上油气田(A油气田)中的应用,通过对A油气田调整工程和输电要求的调研,给出了对应的柔性直流输电系统换流器、主接线和接地方式等设计方案。在此基础上,根据技术经济性分析,给出了相关主回路参数设计。最后,搭建了仿真模型,验证了本文分析和设计的正确性和有效性。

Flexible DC transmission system can increase the transmission distance,lessen the equipment occupying space,and improve the operation reliability,which has the enormous development foreground for power transmission in offshore oil field.This paper discusses the application of flexible DC transmission technology in an offshore oil field of Bohai Bay（oil field A）.Comparing to the flexible DC transmission system in Wenchang,oil field A has longer transmission distance and higher capacity.Through the investigation of adjustment project and power transmission requirements in offshore oil field A,the paper proposes the design of voltage source converter,main topology,and grounding scheme.On this basis,the main parameters are designed according to the technology economic analysis.At last,a simulation platform is built to verify the correctness of the designed scheme.