Research on simplified equivalent method of 3D simulation model for temperature distribution of HVDC submarine cables

Yanpeng, Hao; Chen, Yun; Yang, Lin; Qiu, Weihao; Huang, Wenyan; Huang, Jichao

doi:10.1109/icempe.2017.7982061

Cited by 8 publications

(3 citation statements)

References 7 publications

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“…where H is the magnetic field strength; J e is vortex current; J s is the source current; ρ e is the resistivity; µ e is the permeability. According to the heat conduction theory, the steady-state form of the thermal field control equation is shown in (13) [11]:…”

Section: Multiphysics Coupling Modelmentioning

confidence: 99%

Thermal Field Simulation and Analysis of Tulip Contact Based on Virtual Material Method

Cai²,

Zhang³

et al. 2023

IEEE Access

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In order to analyze the temperature distribution of circuit breaker tulip contact, a thermal field simulation model for tulip contact is built combined with the electromagnetic-stress-thermal coupled finite element simulation and virtual material method which models the contact resistance characteristics of tulip contact. The temperature rise characteristic of tulip contacts under rated current conditions and short-circuit conditions is analyzed with the model. Results show that the virtual material method can describe the contraction resistance and additional resistance at the end of the contact finger simultaneously, so as to simulate the partial high temperature of the contact interface. Then, the influence of spring pressure and pressure uniformity on the thermal field of tulip contact is analyzed. Results show that the decrease of spring pressure and the imbalance of contact finger pressure may lead to an increase in the temperature rise of the tulip contact. The proposed method can be used as a reference for the design and the overheating analysis of tulip contact.

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Section: Multiphysics Coupling Modelmentioning

confidence: 99%

Thermal Field Simulation and Analysis of Tulip Contact Based on Virtual Material Method

Cai²,

Zhang³

et al. 2023

IEEE Access

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“…The lower boundary of the model is far away from the cable, and the influence of cable heating on the temperature of the lower boundary can be ignored. In the finite element model of the landing section, the lower boundary temperature is taken as 281.15 K. Its expression can be written as (Liang et al, 2007;Duan et al, 2014;Hao et al, 2017).…”

Section: Figurementioning

confidence: 99%

Overload capacity analysis of extra high voltage AC XLPE submarine cable

Zhang¹,

Ma²,

Li³

et al. 2023

Front. Energy Res.

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When submarine cable line fails or other lines need load transfer, it often suffers from emergency ampacity that exceeds the steady-state ampacity. The layout environment of the submarine cable is always complex and changeable, and the overload capacity of the submarine cable in different layout environments is also different. Therefore, it is necessary to analyze the overload capacity of the submarine cable. In this paper, a coupled multi-physical field model by finite element method is established for AC 500 kV XLPE extra high voltage submarine cable in landing section, which is the ampacity bottleneck section of the whole line. The overload capacity of submarine cable in two typical layout environments which are direct buried and within pipeline is analyzed. The results show that the overload capacity of submarine cable in the direct buried environment is much higher than that in the pipeline environment. The allowable emergency time in the direct buried environment is 2–3 times that of the pipeline environment under the same condition. In the two typical layout environments, when the emergency current are 2500 A and 3500 A, the ratio of the emergency time allowed to run in the direct buried environment to that in the pipeline environment is about 5 times under the same initial capacity. The proposed model can provide a reference for dynamic capacity control of the extra high voltage submarine cable.

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“…Submarine power cable construction requires a lot of investment [1]. To ensure the return on investment, submarine power cables are generally expected to operate stably and reliably for at least 25 years in the harsh environment of the seabed.…”

Section: Introductionmentioning

confidence: 99%

The Study of Burial Depth and Risk Assessment of Submarine Power Cable

Zhang¹,

Ding²,

Dong³

et al. 2019

dteees

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In this paper, the determination of submarine cable burial depth and risk assessment method are studied. The main objective of the method is to optimize the burial depth of submarine cable in terms of specifying an economically feasible buried depth which ensures a satisfactory level of protection and by acceptable risk. The risk factors influencing the burial depth of submarine cables were analyzed. The primary risk to which submarine cables are exposed is anchoring, while the environmental factor and the cable itself have relatively smaller impact and cannot be mitigated by burial. Then the calculation method of probability and depth of penetration of anchor deployment near a submarine cable were studied. The method can reduce the protection cost while providing the cable with better protection and to guide the specification of the burial depth of submarine power cables. Compared with traditional methods which relying on operational experience, the probabilistic analysis determines the burial depth based on the water depth and seabed conditions of different sections as well as the vessel traffic of the cable route which is an accurate and quantitative approach.

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Research on simplified equivalent method of 3D simulation model for temperature distribution of HVDC submarine cables

Cited by 8 publications

References 7 publications

Thermal Field Simulation and Analysis of Tulip Contact Based on Virtual Material Method

Thermal Field Simulation and Analysis of Tulip Contact Based on Virtual Material Method

Overload capacity analysis of extra high voltage AC XLPE submarine cable

The Study of Burial Depth and Risk Assessment of Submarine Power Cable

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