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| Temperature Identification of Electric Submersible Motor Based on Perturbation Analysis of Therodynamic Parameters |
| Wang Liguo1, Zhang Fengna1, lü Xin1, Xu Zhuang1, Xu Dianguo1, Deng Hui2 |
| 1. Harbin Institute of Technology Harbin 150001 China 2. Daqing Oilfield Power Pump Industry Co. Ltd. Daqing 163311 China |
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Abstract In order to improve the calculation accuracy of the sensor-less temperature identification method, the thermal parameter perturbation theory is applied to analyze the electric submersible motor (ESM) in this paper. Through modeling the ESM, the relationship of the thermal parameters to changing the temperature of ESM are given. The stability of presented thermal system is validated by analyzing root locus of thermodynamics equations in the frequency domain. Simulation and experiment show that, the identification temperature of ESM is consistent with measured results.
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Received: 01 November 2010
Published: 07 March 2014
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2011, Vol. 26 
