CAJ | 학술논문

为了确定特高压同塔双回交流输电线路与邻近民房间的距离,基于模拟电荷的计算方法原理对输电线路邻近民房处的畸变电场进行了分析,并编制了相应的软件.计算结果表明:由于房屋的存在,对线路和房屋之间的电场强度起到了屏蔽作用,电场强度最大值有所降低;房屋顶部的电场强度随着房屋高度的增加而增大,同样由于房屋的屏蔽作用,房屋远离线路一侧的电场强度降低很多;增加导线高度或者向线路外侧移动房屋后,房屋顶部的电场强度有显著的降低.
위료학정특고압동탑쌍회교류수전선로여린근민방간적거리,기우모의전하적계산방법원리대수전선로린근민방처적기변전장진행료분석,병편제료상응적연건.계산결과표명:유우방옥적존재,대선로화방옥지간적전장강도기도료병폐작용,전장강도최대치유소강저;방옥정부적전장강도수착방옥고도적증가이증대,동양유우방옥적병폐작용,방옥원리선로일측적전장강도강저흔다;증가도선고도혹자향선로외측이동방옥후,방옥정부적전장강도유현저적강저.
To make the electric strength above roof and other area of the building to satisfy the standard require ments,determination of the distance of transmission lines and building is very important.We analyzed the distorted electric field based on the theory of charge simulation method and program is set up for calculation.The results show that:(a)to calculate electric field strength of typical 1000 kV double circuit on one tower transmission line,because of the shielding effect of the building,the maximum value of electric strength between the transmission line and the building is lower than before;moreover,the electric field strength on the roof of higher building is higher than the lower.For example,the electric strength in middle of the edge of the three-storey buildings roof is 6 kV/m,higher than the electric field strength of one floor building;meanwhile,because of the shielding effect of the building,the electric field strength side far from the line is lower than before.(b)when the transmission line are hoisted from 25 m to 50 m,the maximum value of electric field strength reduces from 14 to 4.2 kV/m.(c)when the three-storey building is moved away from line from 25 m to 50 m,the maximum value of electric field strength reduces from 14 to 4 kV/m.