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Structure of canned PMSM for high temperature and highpressure direct drive electric valve

Published:2023-01-30 author:WU Qing-song, LI Wei, ZHANG Wei, et al. Browse: 1093 Check PDF documents

Structure of canned PMSM for high temperature and

high-pressure direct drive electric valve

WU Qing-song1, LI Wei1, ZHANG Wei2, FENG Gui-hong1, ZHANG Bing-yi1

(1.School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China;

2.Shenyang Shengshi Wuhuan Science and Technology Co., Ltd., Shenfu Demonstration Area 113122, China)

Abstract: Aiming at the problems of too long transmission chain and large volume of high temperature and high pressure electricactuated valve, a novel integrated structure of high temperature and high-pressure direct drive electricactuated valve canned permanent magnet synchronous motor (DDEAV-CPMSM) was proposed. Firstly, the influence of temperature, pressure and canned sleeve parameters on the stress-strain distribution of the integrated structure were explored. Then, the electromagnetic performance under different canned sleeve parameters was compared, and the stress evaluation of the dangerous section under high temperature and high pressure was carried out. On the basis of the optimal parameters, the reinforcing ring structure was proposed, the maximum equivalent stress under different reinforcing ring sizes was compared, and the function curve of the maximum equivalent stress in the dangerous section with the thickness, width and position of the reinforcing ring was established. Finally, a high temperature and high pressure experimental platform was built to analyze the influence on the strain of the reinforcing ring. The research results show that the reinforcing ring can improve the safety factor of the canned sleeve. The average value of the measured outer diameter of the reinforcing ring is 126.172mm, the simulated outer diameter of the reinforcing ring is 126.06024mm, and the relative error is 0.088%, which provides a theoretical basis for the design of the pressure-bearing structure of the integrated electric-actuated valve under high temperature and high pressure.

Key words: hydraulic control valve; fluid delivery system; direct drive electric actuated valve canned permanent magnet synchronous motor (DDEAV-CPMSM); canned sleeve; reinforcing ring; drive chain

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