油田群项目海上降压变电站布置方案研究

Research on Layout Plan of Offshore Step-down Substation for Oilfield Group Project

[目的]海上油田群电力主要来源于发电机组,存在供电可靠性差、发电效率低和节能减排压力大等问题,通过陆上向海上供电可以很好地解决上述问题。[方法]根据功能定位和工作原理,可将海上降压变电站分为220 kV开关设备区、变压器区、35 kV开关设备区、10 kV开关设备区、无功补偿区和辅助房间六大区域。通过对各区域的研究给出了推荐的布置方案。[结果]给出的布置方案对提高海上降压变电站的可靠性、保障设备检修和维护便利以及最大程度减少平台尺寸具有重要作用。[结论]提出的布置方案能够对油田群项目中的海上降压变电站起到很好的指导作用,具有较高的参考价值。

[Introduction]The power of offshore oilfield group mainly comes from generating units,which has problems of poor power supply reliability,low power generation efficiency,high pressure of energy saving and emission reduction,etc.[Method]According to the function orientation and working principle,the offshore step-down substation could be divided into six areas:220 kV switchgear area,transformer area,35 kV switchgear area,10 kV switchgear area,reactive power compensation area and auxiliary room.The recommended layout plan was given through the study of each area.[Result]The layout plan proposed in this paper plays an important role in improving the reliability of offshore step-down substation,ensuring the convenience of equipment maintenance and service,and minimizing the platform size.[Conclusion]The layout plan proposed in this paper can play a good role in guiding offshore step-down substations in oilfield group project and has high reference value.