Research On The Effects Of Electromagnetic Environment And Characteristics Of Urban Power Transmission System

In recent years,the rapid economic development in our country,people demand more and more,our country city radius increasing.City extended to the suburbs.A lot of growth of residential electricity demand inevitably based on a lot of electric power facilities for security.In order to ensure the quality of power supply reliability and power supply,power transmission and transformation equipment had to appear where residents live more concentrated.The substation will become complicated electromagnetic environment in the city.The equipment of electromagnetic field around impact on people’s lives and health of body and mind is gradually concerned by people,is also related to male staff and departments need to be solved.Resident to ensure safe and stable electricity at the same time,the electromagnetic environment caused bu civil disputes occur repeatedly,it hinders the development of electric power industry in our country,the more benefit.So i need to city power transmission and transformation equipment surrounding the distribution features of the electromagnetic environment to coordinate.In order to solve the increasing electricity demand,both to coordinate environment and the city,the city center area power system cable for a growing proportion. And so the electromagnetic environment effect of the power cable is also some problems which need to be studied urgently at present.On the basis,this paper first studied the route of transmission lines under the 3d power frequency electromagnetic environment characteristics,suing the equivalent charge method using matlab language normally transmission line frequency electromagnetic environment is compiled calculation program, the simulation and analysis of transmission line 3d electromagnetic environment,the characteristics of power frequency with the standard limit.Then the electromagnetic environment near the Eiffel tower are simulated and nanlysed, and compared with the related standard limit.Finally a few transmission lines in Beijing city,and several typical urban substation,the measurement of the electromagnetic environment,and the results were compared with the standard limit.Finally analyzes the power cable of the electromagnetic environment,to study the buried cable magnetic induction strength characteristics of above ground,and cross the river bridge laying cable leakage current impact on personnel,the results show that the bridge cable not safety influence on people.