海上油气田长距离输电方式研究与应用分析

从系统构成、拓扑结构、技术特点、经济成本等方面对高压交流输电、电流源型高压直流输电、电压源型高压直流输电技术几种常见长距离输电方式进行比选分析,重点论述了各种输电方式的优缺点、在海上应用的技术方案可行性以及适用情况。工程实际中,最优方案需根据负荷规模、输电距离、供电质量、经济成本等进行综合论证比选。在此基础上,侧重对电压源型高压直流输电在海上输电领域的应用进行了分析和论证,为其在海上油气田的应用和发展提供了技术基础。作为一种新型输电方式,可有效提高输电距离、减小海上平台面积、提高电力系统运行可靠性和稳定性,是未来海上油气田长距离输电技术的趋势。

Research and Application Analysis on Long-distance Power Transmission in Offshore Oil and Gas Field

This paper makes comparison with several offshore long-distance power transmission ways, such as HVAC, LCC-HVDC and VSC-HVDC, by analyzing their system configuration, topology structure, technical features and economic cost. The advantages and disadvantages of these transmission ways are discussed. The feasibility of their technical proposals and offshore application is laid special stress on. In engineering, the optimal proposal need to be demonstrated and compared based on electrical load, transmission distance, power quality and economic cost. Based on above analysis, this paper focuses on the application of VSC-HVDC in the field of offshore power transmission, providing technical basis for the application and development of VSC-HVDC in offshore oil and gas fields. As a new transmission way, VSC-HVDC can increase transmission distance, reduce offshore platform area and improve the reliability and stability of power system, and is the future trend of offshore oil and gas long-distance transmission technology.