Affiliation:
1. National Engineering Research Center of Ocean Geophysical Prospecting and Exploration Equipment, China University of Petroleum (East China), Qingdao 266580, China
2. College of Electromechanical Engineering, Qingdao University of Science &Technology, Qingdao 266061, China
Abstract
As a submersible permanent magnet synchronous motor (SPMSM) must function in downhole high temperature crude oil for long periods of time, the accurate prediction of its temperature rise is crucial to improve the stability of the motor. However, the analysis of its temperature field involves multiple physical fields, such as the electric field, the magnetic field, the fluid field and so on, and it is difficult to calculate accurately. Motor loss is usually loaded as a fixed value when calculating the temperature field, while in reality, the loss always changes with temperature. Therefore, the calculation of temperature is inaccurate using this one-way coupled method. In this paper, the relationship between loss and temperature is investigated and an electromagnetic-thermal fluid multi-physics two-way coupled analysis method suitable for SPMSM is proposed. The loss can be loaded as a variable by this new two-way coupled method, which significantly improves the temperature calculation accuracy. In order to prove the feasibility of the two-way coupled method, experiments based of a prototype of high torque and low speed SPMSM and cavity pump are conducted with the fiber Bragg grating (FBG) sensor measuring SPMSM temperature. Finally, the multi-physics two-way coupled method proposed in this paper is proven to be rational and feasible in the analysis of the SPMSM temperature rise.
Funder
Fundamental Research Funds for the Central Universities—the Opening Fund of National Engineering Laboratory of Offshore Geophysical and Exploration Equipment, China University of Petroleum
Subject
Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering
Reference39 articles.
1. Application of permanent-magnet motors in oil production;Bybee;JPT,2009
2. Submersible direct-drive progressing cavity pump rodless lifting technology;Hao;Petrol. Explor. Dev.,2019
3. Induction versus permanent-magnet motors for electric submersible pump field and laboratory comparisons;Brinner;IEEE Trans. Ind. Appl.,2013
4. Cui, J., Xiao, W., Zhang, X., Zhang, X., Zhang, P., Chen, P., Huang, H., and Wu, X. (December, January 30). Electric submersible progressing cavity pump driven by low-speed permanent magnet synchronous motor. Proceedings of the SPE Middle East Artificial Lift Conference and Exhibition, Manama, Bahrain.
5. Optimization of offshore direct drive wind turbine generators with consideration of permanent magnet grade and temperature;Bhuiyan;IEEE Trans. Energy Conver.,2018
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献