注水泵矢量控制消回流技术研究
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摘要
为了完全消除注水站站内回流,实现柱塞式注水泵带载荷直接启动与自动注水,提出了鼠笼式电动机全闭环矢量控制方式以提高电动机启动转矩和调速性能,并对常规鼠笼式电动机进行配套改造,提高了电动机与变频系统的适配性。现场试验表明,采用全闭环矢量控制技术实现注水泵在16.8 MPa压力下直接启动,可完全消除站内回流,年节约电费16万元。另外,简化操作流程,提高注水站自动化控制水平,是注水站提质增效的主要目标。
In order to completely eliminate the backflow in water injection stations and realize the di-rect start and automatic water injection of plunger injection pump with load, the full closed-loop vector control method for the squirrel cage motor is proposed to improve the motor's start torque and speed control performance, and the conventional squirrel cage motor is modified to improve the adaptability of the motor and frequency conversion system. Field test shows that the full closed-loop vector control technology can be adopted to realize the direct starting of the water injection pump at 16.8 MPa pres-sure, completely eliminate the backflow in the station, and save 160 000 yuan in electricity bills annually.The main purpose of water injection station to improve quality and increase efficiency is to simplify op-eration process and improve the automatic control level of water injection stations.
In order to completely eliminate the backflow in water injection stations and realize the di-rect start and automatic water injection of plunger injection pump with load, the full closed-loop vector control method for the squirrel cage motor is proposed to improve the motor's start torque and speed control performance, and the conventional squirrel cage motor is modified to improve the adaptability of the motor and frequency conversion system. Field test shows that the full closed-loop vector control technology can be adopted to realize the direct starting of the water injection pump at 16.8 MPa pres-sure, completely eliminate the backflow in the station, and save 160 000 yuan in electricity bills annually.The main purpose of water injection station to improve quality and increase efficiency is to simplify op-eration process and improve the automatic control level of water injection stations.
引文
[1]刘晴.大港油田注水站自控及能耗分析系统研究与应用[J].中国石油和化工,2015,5(2):48-49.LIU Qing.Research and application of the automatic control and energy consumption analysis system in Dagang Oilfield[J].China Petroleum and Chemical Industry, 2015, 5(2):48-49.
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[7]许期英,刘敏军.交流调速技术与系统[M].北京:化学工业出版社,2010:131-135.XU Qiying,LIU Minjun.AC speed control technology and system[M].Beijing:Chemical Industry Press,2010:131-135.
[8]王廷才.变频器原理及应用[M].北京:机械工业出版社,2009:102-104.WANG Yancai. Principles and applications of frequency converters[M].Beijing:Mechanical Industry Press,2009:131-135.
[2]闫娟,刘欣,庞洁,等.长庆油田注水站自动注水决策分析系统构建与应用[J].中国科技信息,2015,3(2):134-135.YAN Juan,LIU Xin,PANG Jie, et al.Construction and application of automatic water injection decision analysis system for water injection station in Changqing Oilfield[J].China Science and Technology Information,2015,3(2):134-135.
[3]张兆彦,姚博,王荣军,等.变频调速技术在高压注水泵系统的应用[J].内蒙古石油化工,2002,28(2):91-92.ZHANG Zhaoyan,YAO Bo,WANG Rongjun,et al.Ap‐plication of frequency control technology in high pressure water injection pump system[J].Inner Mongolia Petrochem‐ical Industry,2002,28(2):91-92.
[4]邓小飞,魏存祥,刘昆.高压变频技术在注水泵中的应用特性[J].石油矿产机械,2008,37(9):106-108.DENG Xiaofei, WEI Cunxiang, LIU Kun. Application characteristics of high voltage frequency conversion technol‐ogy in water injection pump[J].Oil Field Equipment,2008,37(9):106-108.
[5]田云吉,郑小鹏,尚可俊.“一拖多”转子变频调速系统在镇原油田镇四注的应用[J].中国石油和化工标准与质量,2013(6):161.TIAN Yunji,ZHENG Xiaopeng,SHANG Kejia.The ap‐plication of"multi-split"rotor frequency control system in Zhen 4 Water Injection Station of Zhenyuan Oilfield[J].China Petroleum and Chemical Standard and Quality,2013(6):161.
[6]杨芸,余洪,陈栋.注水泵“一拖多”转子变频技术现场试验与效果分析[C]//第十届宁夏青年科学家论坛论文集,2014:180-181.YANG Yun,YU Hong,CHEN Dong.Field test and effect analysis of"multi-split"rotor frequency conversion technol‐ogy of water injection pump[C]//Yinchuan:10th Ningxia Youth Scientist BBS Essay Collection,2014:180-181.
[7]许期英,刘敏军.交流调速技术与系统[M].北京:化学工业出版社,2010:131-135.XU Qiying,LIU Minjun.AC speed control technology and system[M].Beijing:Chemical Industry Press,2010:131-135.
[8]王廷才.变频器原理及应用[M].北京:机械工业出版社,2009:102-104.WANG Yancai. Principles and applications of frequency converters[M].Beijing:Mechanical Industry Press,2009:131-135.