Results 101 to 110 of about 1,397 (188)

Analysis of the Influence of Complex Terrain around DC Transmission Grounding Electrodes on Step Voltage

open access: yesEnergies
The distribution of renewable energy sources is geographically limited. In the process of long-distance transmission, the direct current flowing from a ground electrode into the ground will cause a higher step voltage, which will bring serious security ...
Qi Xiong   +4 more
doaj   +1 more source

Estudio de la red de tierras de un parque eólico [PDF]

open access: yes, 2016
Con la demanda de generación de energía renovable y el aumento concienciación de la sociedad hacia una alternativa viable a la convención térmica y nuclear actual para contribuir a mejorar el medioambiente, la generación eólica ha sido un mercado ...
López de Munáin Díaz, Iker
core  

Multi-Stage Expansion Planning for Decarbonizing Thermal Generation Supported Renewable Power Systems Using Hydrogen and Ammonia Storage

open access: yes, 2023
Large-scale centralized development of wind and solar energy and peer-to-grid transmission of renewable energy source (RES) via high voltage direct current (HVDC) has been regarded as one of the most promising ways to achieve goals of peak carbon and ...
Chi, Yingtian   +6 more
core  

基于CDEGS的双层接地网仿真研究

open access: yesDianci bileiqi, 2017
由于土地资源日益紧缺,变电站占地面积越来越小,仅仅依靠单一的水平接地网很难在变电站站址范围内构造出满足要求的接地。在南方丘陵地区,对一些建在推土、垫土等山坡地带的变电站,利用小山坡,凹地构建双层地网,充分利用变电站区域,有效的降低变电站接地电阻,同时也能解决由垫土层形成的双层土壤的亲和问题。对双层接地网与垂直接地极进行仿真比较,并通过仿真分析了江门某换流站的双层接地网设计,提出了在土壤结构复杂、接地面积小的地方实现最优的接地选择,因此对双层接地网在山地、丘陵和上坡等特殊环境的研究具有一定的意义。
陈志红, 朱力宏
doaj  

Induced electromagnetic field on underground metal pipelines running parallel to nearby high voltage AC power lines [PDF]

open access: yes, 2018
High voltage AC (HVAC) power lines can induce significant amount of voltages on underground gas/oil metal pipelines in areas where they share similar Right of Way (RoW), the situation becoming serious particularly in case of fault conditions ...
Bikorimana, Sefu   +4 more
core  

基于CDEGS某110kV变电站接地网改造安全状态评估

open access: yesDianci bileiqi, 2016
针对某110 k V变电站在施工过程造成该变电站围墙外部分接地网破坏,需要对该变电站进行修葺改造的情况,利用CDEGS仿真软件对该变电站的接地网特性参数进行仿真,根据该仿真计算及评估得出接地阻抗、工频接触电压、工频跨步电压、冲击接触电压、冲击跨步电压不合格的现状,提出合理的改造方案。
邱太洪   +5 more
doaj  

Influence of different soil models on computation of grounding system for transformer station TS 110/10 kV [PDF]

open access: yes, 2015
U diplomskom radu prikazan je utjecaj različitih modela tla na proračun uzemljenja. Prvi dio rada obrađuje osnovne četiri vrste uzemljenje (pogonsko, zaštitno, gromobransko i združeno), vrste uzemljivača te pojmove dodirni napon, napon koraka i ...
Dostal, Dario
core  

Electric and Magnetic Field Computation of 35 kV Voltage Level of Transformer Substation 35/10 kV Using CDEGS Software

open access: yesActa electrotechnica et informatica, 2010
Paper presents electric and magnetic field computation of 35 kV voltage level of transformer substation 35/10 kV using CDEGS software. Based on well known theoretical considerations of electric and magnetic fields, a realistic model of transformer station 35/10 kV was developed for the simulations.
Jozsa, Lajos   +2 more
openaire   +1 more source

基于矩量法的输电线路工频电磁场实测与计算分析

open access: yesGaoya dianqi, 2013
笔者简要介绍了矩量法的基本原理。针对电力系统线性结构特点,阐述了矩量法用于计算电力系统工频电磁场的工程算法。基于该算法,使用国际知名软件包CDEGS计算了某地区实际输电线路的工频电磁场分布,计算结果与实测符合得很好。还分析了降低输电线路在地面附近电场强度的实用性措施,以供工程参考。
黄韬   +4 more
doaj  

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