Investigation of electric field intensity and degree of uniformity between electrodes under high voltage by Charge Simulation Method

2014 ◽  
Author(s):  
Md. Ahsan Habib ◽  
Muhammad Abdul Goffar Khan ◽  
Md. Khaled Hossain ◽  
Shafaet Ashif Hossain
Keyword(s):  
Electric Field ◽  
Field Intensity ◽  
High Voltage ◽  
Electric Field Intensity ◽  
Simulation Method ◽  
Charge Simulation Method

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

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1140 ◽  
Author(s):  
Ru Wang ◽  
Jin Tian ◽  
Fei Wu ◽  
Zhenhua Zhang ◽  
Haishan Liu
Keyword(s):  
Electric Field ◽  
Relative Error ◽  
Field Intensity ◽  
Transmission Lines ◽  
Optimization Algorithm ◽  
Electric Field Intensity ◽  
Simulation Method ◽  
Calculation Model ◽  
Charge Simulation Method ◽  
High Voltage Engineering

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.

Prediction Model of Power Frequency Electric Field Intensity of Typical Transmission Line

2013 ◽  
Vol 448-453 ◽  
pp. 328-331
Author(s):  
Xin Zhao ◽  
Tao Chen ◽  
Wei Wang ◽  
Yan Hong Huang Fu
Keyword(s):  
Electric Field ◽  
Transmission Line ◽  
Field Intensity ◽  
High Voltage ◽  
Electric Field Intensity ◽  
Electromagnetic Compatibility ◽  
High Voltage Transmission Line ◽  
Power Frequency ◽  
Frequency Electric Field ◽  
High Voltage Transmission

The power frequency electric field and Electric radiation generated by high voltage transmission line have a great impact on the surrounding environment, which is one of the important research topic on environmental protection and electromagnetic compatibility technology field. In this paper, the information database of typical transmission line and tower established,and the prediction of power frequency electric field intensity of high voltage transmission line has been given by using the 3-D computational method.Then, the major factors affecting the calculation results of electric field is discussed based on the measured data and the error analysis is given.

Analysis and Calculation of Substation’s Internal Electric Field Intensity Caused by Incoming and Outgoing Lines

2013 ◽  
Vol 291-294 ◽  
pp. 2428-2431
Author(s):  
Hui Lan Jiang ◽  
Kai Zeng ◽  
Jian Min Liu ◽  
Chao Li
Keyword(s):  
Genetic Algorithm ◽  
Electric Field ◽  
Field Intensity ◽  
High Voltage ◽  
Electric Field Intensity ◽  
Transmission System ◽  
Three Phase ◽  
Power Frequency ◽  
Limited Length ◽  
Frequency Electric Field

In ultra-high voltage transmission system, the electrostatic induction generated by power frequency electric field will exerts negative effects on the electrical automation equipment within the substation and, in particular, will leads long-term harm to staffs’ health. However, researches of electric field environment in ultra-high voltage transmission system merely concentrate on calculating the electric field intensity caused by three-phase limited length wire or three-phase infinite wire within the transmission, without considering the method of calculating half-infinite wire which represents “one end is fixed, while the other end is infinite length’s wire”. Consequently, a new method named “Charge Simulation-Genetic Algorithm (CS-GA) method” which can efficiently calculate power frequency electric field inside of the substation is proposed in the paper. In CS-GA method, the effective calculating length is determined by genetic algorithm method’s optimization, which in other words, half-infinite length wire is substituted for limited length wire in calculating the electric field intensity. The simulation results indicate that CS-GA method is a relatively accurate, efficient and reasonable way on calculating the power frequency electric field inside of the substation.

The Effect of High-Voltage Electrostatic Field on the Water Performance

2012 ◽  
Vol 441 ◽  
pp. 695-698
Author(s):  
Qing Wang ◽  
Jie Min ◽  
Jia Tian
Keyword(s):  
Electric Field ◽  
Physical Properties ◽  
Field Intensity ◽  
High Voltage ◽  
Electrostatic Field ◽  
Electric Field Intensity ◽  
Treatment Time ◽  
Swelling Ratio ◽  
Wool Fibers ◽  
Effect Of Treatment

Water treated by external electric field with different field intensity. The absorbency of water, the changes of dyes solubility, the effect of treatment time and the changes of wool swelling were studied. The results showed that electric field treatments can alter the water physical properties to various degrees. The absorbance of water increased with increasing electric field intensity. The swelling ratio indicated the ability of solvent to penetrate the wool fibers and to swell them.

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