Int J Performability Eng ›› 2020, Vol. 16 ›› Issue (12): 1941-1948.doi: 10.23940/ijpe.20.12.p10.19411948

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Internal Resistance Compensation Method for Battery Packs of Underground Intelligent Water Distributors

Quanbin Wanga, Xiaohan Peia, Changpeng Caob, Chuan Yua, Deli Jiaa, *   

  1. aResearch Institute of Petroleum Exploration and Development Petro China Co. Ltd., Beijing, 100000, China;
    bDaqing Oilfield Oil Production Engineering Research Institute, Daqing, 163000, China
  • Submitted on ; Revised on ; Accepted on
  • Contact: * Corresponding author. E-mail address: jiadeli422@petrochina.com.cn
  • Supported by:
    This work is supported bythe Key Project of Exploration and Production Branch of China National Petroleum Corporation "Research and Application of Monitoring and Automatic Control Technology for Zonal Water Injection" (No. kt2017-17-01-1), Sino-us Energy International Cooperation Project "Energy and Water Bond and the Key Technology of Efficient Green Utilization" (No. 2018YFE0196000) and National Natural Science Foundation of China (No. 52074345).

Abstract: For inaccurate internal resistance measurements of battery packs of under-well water distributor power supplies, a new compensation method for internal resistance measurement is proposed in this paper. On the basis of analyzing numerous factors influencing the detection disorder of internal resistance of batteries, multiple linear regression based on statistical prediction is applied to compensate for the resistance measurement error caused by equipment disturbance and aging, and SPSS is employed for prediction analysis and regression model testing. The test results show that the minimum resolution of resistance is 1mΩ, and the measurement precision can reach 1%, which fully meets the performance requirements of down-well intelligent water distributors for battery packs.

Key words: water injection well, internal resistance of battery, multiple linear regression, SPSS