电工技术学报  2015, Vol. 30 Issue (14): 138-145    DOI:
电机与电器 |
潜液式LNG泵用变频低温异步电机的运行性能研究
艾程柳1,2,黄元峰1,王海峰1,顾国彪1
1.中国科学院电工研究所 北京市 100190;
2中国科学院大学 北京市 100049
Research on the Operating Performance of an Inverter-driven Cryogenic Induction Motor for a Submerged LNG Pump
Ai Chengliu1,2,Huang Yuanfeng1,Wang Haifeng1,Gu Guobiao1
1. Institute of Electrical Engineering, Chinese Academy of Sciences Beijing 100190 China;
2. University of Chinese Academy of Sciences Beijing 100049 China
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摘要 为了详细研究潜液式LNG(liquid natural gas)泵变频低温异步电机的运行性能,本文针对11.1kW低温变频异步电机样机建立了仿真模型,并通过样机的液氮试验验证了该仿真模型的准确性。基于该仿真模型,文中计算了该样机50Hz和100Hz时在液氮(-196℃)中的工作特性和机械特性,结果表明,低温异步电机的性能要优于常温电机,稳定运行转速非常接近同步转速,且电机的恒压频比调速的带载能力强。此外,文中仿真计算了样机在液氮和LNG(-161℃)中的运行性能,结果表明样机在两种流体环境的运行性能差异不大。
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关键词 LNG泵低温变频异步电机液氮低温试验运行性能    
Abstract:In order to study the operating performance of the inverter-driven cryogenic induction motor detailly, the simulation model of a 11.1kW prototype has been built in this paper. And its accuracy is proved by the experimental results of the prototype in the liquid nitrogen (-196℃). The running and mechanical characteristics of the prototype at 50Hz and 100Hz in the liquid nitrogen have been computed by the model. The computation results show that the performance of the cryogenic induction motor is better than the room temperature motor, its revolving speed is close to the synchronous speed and load capability is improved at the control policy of constant voltage frequency ratio. Furthermore, there is little difference between the prototype performance in the LNG (-161℃) and the liquid nitrogen by the calculation results based on the simulation model.
Key wordsLNG pump    inverter-driven cryogenic induction motor    cryogenic experiment in the liquid nitrogen    operating performance   
收稿日期: 2014-09-10      出版日期: 2015-09-08
PACS: TM315  
作者简介: 艾程柳 男 1987年生,博士研究生,研究方向为低温电机设计与控制。黄元峰 男 1986年生,助理研究员,从事特种电机的设计和控制。
引用本文:   
艾程柳,黄元峰,王海峰,顾国彪. 潜液式LNG泵用变频低温异步电机的运行性能研究[J]. 电工技术学报, 2015, 30(14): 138-145. Ai Chengliu,Huang Yuanfeng,Wang Haifeng,Gu Guobiao. Research on the Operating Performance of an Inverter-driven Cryogenic Induction Motor for a Submerged LNG Pump. Transactions of China Electrotechnical Society, 2015, 30(14): 138-145.
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