Calculation of Temperature Rise in Dry-type Air-core Reactors Using Strong  Coupling of Fluid-Temperature Field

Zhang, Yujiao; Huang, Xiongfeng; Hu, Gang; Huang, Tao; Ruan, Jiangjun

doi:10.19026/rjaset.5.4603

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…Now most substations of 110 kV and above use the Dry-type Air-core Reactor (DAR) for compensation to achieve local compensation and local balance to ensure the safe operation of the hydropower plants system (Levieux et al, 2019;Ricardo et al, 2018;Seyedi and Tabei, 2012). However, according to Montsinger's law, when an insulating material operates under a temperature exceeding a threshold, it will rapidly deteriorate (H. Nie et al, 2019;Zhang et al, 2013;Zhao et al, 2013). After operating for a period of time, many DARs will suffer surface dendrite discharge, partial burning, and even burning up (Seyedi and Tabei, 2012).…”

Section: Introductionmentioning

confidence: 99%

A Study of Encapsulation Temperature Field of Dry-type Air-core Reactor with the Structure of Equivalent and Aluminum Wire-Insulation

Wan

Wang

et al. 2022

DGAEJ

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During the operation of the Dry-type Air-core Reactor (DAR), the insulation material deteriorates due to local overheating of the encapsulation, and the reactor is burned in severe conditions. Therefore, studying the temperature rise of the reactor plays an important role in the reliability of its operation and the economy of design and production. According to the structural characteristics of the reactor, the three-dimensional thermal field model of the aluminum wire-insulation structure of the reactor is established, and the encapsulation temperature field distribution of the reactor under steady state is obtained. Compare the simulation result with the encapsulation temperature field distribution of the equivalent structure. The results show that the highest temperature of the aluminum wire-insulation structure encapsulation rises to 73.51∘∘C, which is located in the middle of the reactor. Each encapsulation hotspot is located about 20% from the upper edge of the encapsulation. In the temperature rise test, a Fiber Bragg Grating (FGB) temperature sensor is installed about 20% from the upper edge of the encapsulation. The test shows that the most significant value of temperature rise of the reactor is 73∘∘C, which is located in the middle of the reactor. The temperature rise test results verify the accuracy of the simulated calculation value of the temperature field of the aluminum wire-insulated reactor and provide a reference for the temperature rise calculation and temperature rise monitoring of the DAR.

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Section: Introductionmentioning

confidence: 99%

A Study of Encapsulation Temperature Field of Dry-type Air-core Reactor with the Structure of Equivalent and Aluminum Wire-Insulation

Wan

Wang

et al. 2022

DGAEJ

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Study for spatial magnetic field distribution of inter-turn short-circuit fault degree in dry air-core reactors

Dazhou

Mingkai

et al. 2018

2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA)

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Multiphysics Coupling in IGBT Modules: A Review

Tian,

Chen

2024

Journal of Electronic Packaging

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Since insulated gate bipolar transistor (IGBT) is a core component for power conversion in a power electronic system, guaranteeing the safety of IGBT becomes a crucial task for the maintenance of the power system. However, the mechanism of IGBT failure is a considerably complicated process related to the dynamic process, involving electric, thermal, and force. Hence, understanding the behaviors of IGBT under multi-physics field coupling plays an important role in the design and reliability studies of IGBT. In this paper, we review the multi-physics coupling effects, namely, electric-thermal coupling, thermal-force coupling, and force-electric coupling, inside IGBT devices. The basic principles of each coupling, coupling models, application occasions as well as key issues and development trends are discussed in detail, respectively.

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Calculation of Temperature Rise in Dry-type Air-core Reactors Using Strong Coupling of Fluid-Temperature Field

Cited by 3 publications

References 5 publications

A Study of Encapsulation Temperature Field of Dry-type Air-core Reactor with the Structure of Equivalent and Aluminum Wire-Insulation

A Study of Encapsulation Temperature Field of Dry-type Air-core Reactor with the Structure of Equivalent and Aluminum Wire-Insulation

Study for spatial magnetic field distribution of inter-turn short-circuit fault degree in dry air-core reactors

Multiphysics Coupling in IGBT Modules: A Review

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