Analysis of Magnetic Field Intensity and Induced Current under Live Working Based on Charge Simulation Method
1 School of Electrical Engineering, Northeast Dianli University, Jilin, Jilin, China
2 State Grid Liaoning Electric Power Supply Company, Shenyang, Liaoning, China
3 State Grid Liaoning Academe of Electric Power Science, Shenyang, Liaoning, China
4 Xi’an Qin Ping Power Technology Development Limited Company, Xi’an, Shanxi, China
5 Liaoning Annuoxin Power Technology Limited Company, Xi’an, Shanxi, China
To the problem that safety distance is insufficient for 500 kV substation live working, a magnetic field analysis method for overhead line bus is given based on the charge simulation method. In the method, charge is calculated firstly, and the space field intensity distribution calculation is completed by overlying charge. The space field intensity distribution rule is carried out based on the appropriate analysis, and space field intensity distribution rule of substation is obtained. Then according to the calculation formula of inducing current, the human body induction current under a substation busbar is simulated based on MATLAB. The simulation results have a certain guidance function for actual live working.
Key words: live working / charge simulation method / field intensity distribution / induced current
© Owned by the authors, published by EDP Sciences, 2015
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