高电压大容量海陆互联电力系统涌流影响分析  

Study on the application of dynamic reactive power compensation in starting a high-power motor

作　　者：高璇 李雪 刘国锋 王凯藤 GAO Xuan;LI Xue;LIU Guofeng;WANG Kaiteng(China National Offshore Oil Corporation Research Institute Co.,Ltd.,Beijing 100028,China)

机构地区：[1]中海油研究总院有限责任公司,北京100028

出　　处：《电气应用》2023年第3期88-91,共4页Electrotechnical Application

摘　　要：近年来,渤海油田逐步引入岸电,陆上电网的电力经过长距离海底电缆输送至海上电力动力平台,再经过几十兆伏安至几百兆伏安不等的主变压器降压后为海上油气田供电。在主变压器合闸过程中,由于励磁涌流的作用势必会影响本平台和其他电力动力平台配电母线的电压,从而导致油田内部用电设备的电源电压波动,严重时用电设备可能会有掉电的风险。针对这种高电压大容量的海陆互联电力系统的涌流进行仿真研究,计算变压器合闸涌流,分析其对相邻供电母线电压的影响,保障海上油气田供电的可靠性。In recent years,shore power has been gradually introduced into Bohai oil field.The power of shore power grid is transmitted to offshore power platform through long-distance submarine cable,and then depressurized by main transformer ranging from tens of MVA to hundreds of MVA to supply power for offshore oil and gas fields.During the closing process of the main transformer,due to the action of inrush current,it is bound to affect the voltage of the distribution bus of this platform and other platforms,resulting in the power supply voltage fluctuation of the electrical equipment in the oil field.In serious cases,the electrical equipment may have the risk of power failure.Therefore,the inrush current of this high-voltage and large-capacity interconnected power system between sea and land is simulated,and the influence of transformer closing inrush current on the voltage of adjacent power supply bus is analyzed to ensure the reliability of power supply in offshore oil and gas fields.

关 键 词：大容量变压器 海缆互联 励磁涌流 长距离输电 母线电压 

分 类 号：TE54[石油与天然气工程—油气田开发工程] TM73[电气工程—电力系统及自动化]