Calculating the Surface Potential Gradient of Overhead Line Conductors

Li, Q.; Rowland, S. M.; Shuttleworth, R.

doi:10.1109/tpwrd.2014.2325597

Cited by 37 publications

(15 citation statements)

References 12 publications

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“…There are four types of numerical methods that can satisfy the analytical methods stated which are Successive Images Method (SIM) [107]- [109], Charge Simulation Method (CSM) [110]- [113], Finite Element Method (FEM) and Boundary Element Method (BEM). The level of accuracy of each methods is analysed in [114], [115], it is proved that FEM method complies the closest with the analytical calculation of electric field in surrounding of transmission line. Figure 6 shows an example of FEM modelling using ANSYS Maxwell Software of the electric field under 275kV lines.…”

Section: Methods To Calculate and Measure Electric Field In Surroundimentioning

confidence: 99%

A Review of Energy Harvesting Methods for Power Transmission Line Monitoring Sensors

Yeesparan

Baharuddin

Din

et al. 2018

IJET

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Condition monitoring sensors have the responsibility of reducing occupational failures or unscheduled shutdowns especially in power transmission line systems. Existing sensors that are used for condition monitoring are mostly battery-dependent. Powering up these sensors in difficult to access areas where high voltage transmission line usually runs is a challenge because batteries usually have a limited life cycle. Power sources other than batteries such as harvesting from solar energy, magnetic energy, radio frequency energy either produces insufficient energy or not entirely available all the time. Electric Field Energy Harvesting (EFEH) overcomes many of these disadvantages and provides a quality and continuous power source to be used to power up devices especially the monitoring sensors that are used in transmission line monitoring. This paper presents key aspects and drawbacks of six types of energy harvesting methods and a review of existing energy harvesters. The concept of electric field and the usage of EFEH in power transmission line system are explained and a comparison between EFEH with typical energy harvesting methods is discussed. This paper finds that EFEH devices have potential to provide sufficient energy for low powered condition monitoring sensors. Moreover, several improved EFEH approaches are proposed, and future trends are discussed.

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Section: Methods To Calculate and Measure Electric Field In Surroundimentioning

confidence: 99%

A Review of Energy Harvesting Methods for Power Transmission Line Monitoring Sensors

Yeesparan

Baharuddin

Din

et al. 2018

IJET

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show abstract

“…The finite element method (FEM) is a common numerical method for solving numerical boundary value problems. With the progress of large-scale numerical calculation in recent years, FEM has been gradually applied in the field of engineering electromagnetic field [4][5][6][7][8][9][10]. The method of moments (MoM) is suitable for solving complex problems of field and excitation source distribution.…”

Section: Related Workmentioning

confidence: 99%

PSO/GA Combined with Charge Simulation Method for the Electric Field Under Transmission Lines in 3D Calculation Model

Tian

et al. 2019

Electronics

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The accurate calculation of electric field intensity under transmission lines is more and more important with the expansion of high voltage engineering, which largely determines the site selection and design of transmission projects. In order to get more accurate results, a methodology of a charge simulation method (CSM) combined with an intelligent optimization algorithm for a 3D calculation model is proposed in this paper. Three key points are emphasized for special mention in this optimized charge simulation method (OCSM). First, the number of sub-segments on the finite length conductor, the position and number of the simulating charge set on a sub-segment are taken as the optimization parameters for unified calculation. Secondly, the fitness function of optimization algorithm is constructed by two values, voltage relative error and electric field intensity relative error. Thirdly, a finite element method (FEM) was used to obtain the electric field intensities, which are compared with the results of the proposed algorithm. A simulation case is carried out on a 3D calculation model of 220 kV transmission lines, which verify the effectiveness of the optimization algorithm. The proposed OCSM solves the parameter optimization problem of CSM in the 3D computational model, which considers physical shape of wire span, and has the advantages of strong global search ability and higher calculation accuracy.

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“…A literatura apresenta alguns métodos consagrados para resolução desse problema eletrostático. Eles são classificados por meio de sua natureza analítica ou computacional [7].…”

Section: B Feixe De Condutoresunclassified

Comportamento Elétrico De Feixes De Condutores Em Linhas Aéreas De Energia

Pereira¹,

Batalha²,

Costa³

et al. 2018

Conferência De Estudos Em Engenharia Elétrica

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Resumo-O artigo apresenta uma avaliação do uso de feixes de condutores em sistemas aéreos de transmissão de energia. Ao se aplicar o cálculo analítico da intensidade de campo elétrico nas configurações propostas, mostrou-se a efetividade da técnica para atenuação do gradiente de potencial em feixes com até quatro condutores. Os resultados evidenciam que o uso de condutores dispostos em feixes geométricos é um recurso adotado para atenuar os impactos do efeito corona, por meio da redução da intensidade do gradiente de potencial elétrico. Palavras-Chave-Campo Elétrico Superficial. Feixe de Condutores. Linhas Aéreas de Transmissão.

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Calculating the Surface Potential Gradient of Overhead Line Conductors

Cited by 37 publications

References 12 publications

A Review of Energy Harvesting Methods for Power Transmission Line Monitoring Sensors

A Review of Energy Harvesting Methods for Power Transmission Line Monitoring Sensors

PSO/GA Combined with Charge Simulation Method for the Electric Field Under Transmission Lines in 3D Calculation Model

Comportamento Elétrico De Feixes De Condutores Em Linhas Aéreas De Energia

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