海上油气田群岸电无功补偿优化设计

Optimal design of reactive compensation of shore power application in offshore oil and gas fields

基于岸电应用工程系统架构及关键设备参数,分析了岸电工程各环节无功组成。不同于海上风电的高压海缆仅连接海上风场与陆地电网,海上油田群岸电工程增加了一根油田群间的互联海缆,使单一海缆的无功补偿问题变成海缆组合的无功补偿问题,无功补偿方案较海上风电更加复杂,配置难度大大增加。研究适用于海上油田群岸电工程的无功补偿配置方案,并总结出适用于工程应用的固定无功补偿及动态无功补偿容量的推荐算法,通过ETAP仿真对该无功补偿方案效果进行验证,对后续类似海上高压工程具有一定的借鉴意义。

Based on the system architecture and key equipment parameters of shore power application engineering,the reactive power composition of each link of shore power project is analyzed.Unlike offshore wind submarine cable only connect sea wind field and land grid,an interconnecting submarine cable is added for shore power application project of offshore oil fields.The reactive power compensation problem of single cable becomes that of cable combination.Compared with offshore wind power,reactive power compensation scheme is more complex and difficult to configure.The reactive power compensation configuration scheme suitable for shore power application in offshore oilfields is studied,the recommended algorithm of fixed reactive power compensation and dynamic reactive power compensation capacity suitable for engineering application is summarized,and verifies the effect of the reactive power compensation scheme through ETAP simulation is verified.It has certaimreference sign ificance for similar offshore high voltage transmission projects.