220kV变电站电晕噪声抑制技术研究和应用
发布时间：2019-04-24 14:46
【摘要】：变电站电晕放电会导致变电站工频电磁场及无线电干扰水平超标,对周围环境造成噪音和电磁污染,影响居民生活和工程的环境评价,因此必须对其进行治理。根据相关设备、金具的实际布置形式和外形结构图纸,结合变电站电晕实测结果,同时考虑相间影响和周围带电导体作用,采用有限元软件ANSYS建立了220 k V变电站典型放电位置的三维电场有限元仿真计算模型,计算了金具表面的电场分布,得到了其表面的场强最大值和分布规律。根据计算结果优化了金具的结构、尺寸和参数,并提出了电晕噪声抑制措施。仿真结果表明采取优化和抑制措施后,金具的电场分布畸变有较大改善,表面最大场强下降到3 000 V/mm以下。研究成果为变电站的防晕降噪设计提供了重要参考,为绿色电网和变电站的建设提供了依据。
[Abstract]:The corona discharge in substation will lead to the excessive level of power frequency electromagnetic field and radio interference in substation, which will cause noise and electromagnetic pollution to the surrounding environment and affect the residents' life and environmental evaluation of the project. Therefore, it is necessary to control the electric field and radio interference level in substations. According to the actual layout form and shape structure drawing of the related equipment and hardware, combined with the measured results of the substation corona, the influence of the phase between phases and the action of the surrounding charged conductor are considered at the same time. The three dimensional electric field simulation model of the typical discharge position in 220kV substation is established by using the finite element software ANSYS. The electric field distribution on the surface of the metal tool is calculated, and the maximum value and the distribution rule of the electric field on the surface are obtained. According to the calculation results, the structure, size and parameters of the metal tool are optimized, and the corona noise suppression measures are put forward. The simulation results show that the electric field distribution distortion of the metal is greatly improved and the maximum surface field strength decreases to less than 3 000 V/mm after the optimization and suppression measures are taken. The research results provide an important reference for the design of anti-corona and noise reduction in substations, and provide a basis for the construction of green power grids and substations.
【作者单位】： 南方电网科学研究院;
【分类号】：TB535;TM63
[Abstract]:The corona discharge in substation will lead to the excessive level of power frequency electromagnetic field and radio interference in substation, which will cause noise and electromagnetic pollution to the surrounding environment and affect the residents' life and environmental evaluation of the project. Therefore, it is necessary to control the electric field and radio interference level in substations. According to the actual layout form and shape structure drawing of the related equipment and hardware, combined with the measured results of the substation corona, the influence of the phase between phases and the action of the surrounding charged conductor are considered at the same time. The three dimensional electric field simulation model of the typical discharge position in 220kV substation is established by using the finite element software ANSYS. The electric field distribution on the surface of the metal tool is calculated, and the maximum value and the distribution rule of the electric field on the surface are obtained. According to the calculation results, the structure, size and parameters of the metal tool are optimized, and the corona noise suppression measures are put forward. The simulation results show that the electric field distribution distortion of the metal is greatly improved and the maximum surface field strength decreases to less than 3 000 V/mm after the optimization and suppression measures are taken. The research results provide an important reference for the design of anti-corona and noise reduction in substations, and provide a basis for the construction of green power grids and substations.
【作者单位】： 南方电网科学研究院;
【分类号】：TB535;TM63
【参考文献】
相关期刊论文 前6条
1 万保权;谢辉春;樊亮;张广洲;刘兴发;;特高压变电站的电磁环境及电晕控制措施[J];高电压技术;2010年01期
2 谢天喜;莫娟;彭宗仁;李靖;付晓勇;;500kV紧凑型线路悬垂复合绝缘子均压环电晕抑制分析[J];高电压技术;2010年07期
3 杨宁;吴旭涛;毕建刚;袁帅;弓艳朋;杨圆;;紫外成像技术在电晕放电检测中影响因素的试验研究[J];高压电器;2012年12期
4 万保权;饶宏;邬雄;黎小林;罗兵;张小武;王琦;李妮;;云广±800kV直流换流站管母线电晕特性及优化研究[J];南方电网技术;2008年04期
5 李如锋;王成江;胡帅;郝为;徐雪琴;孙晓伟;;复合绝缘子伞裙根部厚度与倾角大小对场强分布的影响[J];南方电网技术;2013年05期
6 张兴华;赵宝升;刘永安;缪震华;朱香平;赵菲菲;;紫外单光子成像系统增益特性研究[J];物理学报;2009年03期
【共引文献】
相关期刊论文 前10条
1 刘振;刘菲;;750kV紧凑型塔窗内长空气间隙放电试验研究[J];电瓷避雷器;2009年04期
2 瞿晶晶,何正浩,杜U喕，
本文编号：2464533
本文链接：https://www.wllwen.com/kejilunwen/anquangongcheng/2464533.html
