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Energies 2017, 10(5), 623; doi:10.3390/en10050623

Theoretical and Experimental Evaluation of the Temperature Distribution in a Dry Type Air Core Smoothing Reactor of HVDC Station

1
School of Electrical Engineering, Wuhan University, Wuhan 430072, China
2
Kunming Bureau of Extra-High Voltage Power Transmission Company, China Southern Power Grid, Kunming 650217, China
*
Author to whom correspondence should be addressed.
Academic Editor: Akhtar Kalam
Received: 17 March 2017 / Revised: 19 April 2017 / Accepted: 26 April 2017 / Published: 3 May 2017
(This article belongs to the Section Electrical Power and Energy System)
View Full-Text   |   Download PDF [3599 KB, uploaded 3 May 2017]   |  

Abstract

The outdoor ultra-high voltage (UHV) dry-type air-core smoothing reactors (DASR) of High Voltage Direct Current systems are equipped with a rain cover and an acoustic enclosure. To study the convective heat transfer between the DASR and the surrounding air, this paper presents a coupled model of the temperature and fluid field based on the structural features and cooling manner. The resistive losses of encapsulations calculated by finite element method (FEM) were used as heat sources in the thermal analysis. The steady fluid and thermal field of the 3-D reactor model were solved by the finite volume method (FVM), and the temperature distribution characteristics of the reactor were obtained. Subsequently, the axial and radial temperature distributions of encapsulation were investigated separately. Finally, an optical fiber temperature measurement scheme was used for an UHV DASR under natural convection conditions. Comparative analysis showed that the simulation results are in good agreement with the experimental data, which verifies the rationality and accuracy of the numerical calculation. These results can serve as a reference for the optimal design and maintenance of UHV DASRs. View Full-Text
Keywords: dry-type air-core smoothing reactor (DASR); finite volume method (FVM); fluid-solid coupling; temperature field; ultra-high voltage (UHV) dry-type air-core smoothing reactor (DASR); finite volume method (FVM); fluid-solid coupling; temperature field; ultra-high voltage (UHV)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wang, Y.; Chen, X.; Pan, Z.; Lu, H.; Wen, X.; Jiang, Z.; Chen, B.; Chen, T. Theoretical and Experimental Evaluation of the Temperature Distribution in a Dry Type Air Core Smoothing Reactor of HVDC Station. Energies 2017, 10, 623.

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