Results 51 to 60 of about 393 (141)
Two‐Layer Optimal Electricity Trading Method for Distribution Networks with Multi‐MG
IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.To enhance the operational benefits of distribution networks and microgrids while reducing microgrid energy costs, this paper proposes a distributed trading strategy for microgrids based on a leader–follower game. First, a multi‐objective two‐layer optimization trading model for distribution network (DN)‐microgrid (MG) interaction is established based ...
Chen Zhe +4 more
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Veterinary Medicine and Science, Volume 10, Issue 6, November 2024.Over the course of the study, heavy metals (Cr, Cu, Cd, Fe, Zn and Pb) were analysed using Flame atomic absorption spectrophotometer. The assessed mean concentrations of heavy metals follow the trend: Fe > Pb > Zn > Cr > Cu > Cd. A moderate seasonal variation was found among the sampling sites.
Afsana Kamal +5 more
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IET Generation, Transmission &Distribution, Volume 18, Issue 22, Page 3646-3656, November 2024.A full‐size steel‐framed residential test platform was constructed near a 1000‐kV ultra‐high‐voltage AC transmission line, then the performances of transient electric shocks when human bodies contacting a metal clothes hanger were investigated. The transient shock current characteristics and correlation between transient shock energy and human ...
Wangling He +7 more
wiley +1 more source
Pleiotropic phenotypic effects of the TaCYP78A family on multiple yield‐related traits in wheat
Plant Biotechnology Journal, Volume 22, Issue 10, Page 2694-2708, October 2024.Summary Increasing crop yield depends on selecting and utilizing pleiotropic genes/alleles to improve multiple yield‐related traits (YRTs) during crop breeding. However, synergistic improvement of YRTs is challenging due to the trade‐offs between YRTs in breeding practices.
Meng Ma +13 more
wiley +1 more source
Dianci bileiqi, 2022 为了高效设计变电站接地网，提出一种应用CDEGS进行接地网设计的方法。通过实地测量待建变电站处的土壤电阻率参数，建立变电站实际运行的系统模型，充分考虑到变电站实际运行中最严重的线路运行单相接地短路故障电流入地情况，并将变电站出线架空地线的分流纳入考虑范围，以站内接触电压、跨步电压、地电位升等参数作为安全性指标对设计的接地网进行考核，设计得到两种可行的接地网设计方案，试验表明应用CDEGS进行接地网设计具有较强的可操作性，对各类设计人员而言，可以应用文中的接地网设计方法或者流程，对接地网进行设计 ...
李伟 +7 more
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MATEC Web of Conferences, 2016 A simplified model of the 750kV tower is established by CDEGS software which is based on the Method Of Moment. The power frequency electric field distribution on the ground is achieved by software calculation and field-measuring.
Xu Bao-Qing +4 more
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Dianci bileiqi, 2020 基于CDEGS仿真计算发现,采用多电流极法测量大型接地网接地电阻时,可以通过增加环绕接地网均匀布置的电流极数量方式缩短电流极与接地网之间距离,便于工程实际应用。探讨了一种工程实际中易于实现的多电流极测量方法。将多个电流极沿直线布设在接地网附近,根据CDEGS计算,五电流极沿直线布设的测量系统中均匀电流场效果最明显,当电压补偿点位置为0.8倍地网中心与直线布置的中心电流极之间的距离时,仿真计算出的测量误差不大于5%。
秦天, 刘浔, 涂春华, 吴国华
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Dianci bileiqi, 2022 为了提高输电线路的耐雷水平以及线路发生短路故障时故障电流能够通过接地体快速散流，以保障电力系统能够安全、稳定运行，本研究从实际运行的线路杆塔接地体入手，对其开展降阻优化工作，首先进行原有杆塔接地体的现场勘查，包括原有接地体工频接地电阻值和土壤电阻率分层的测量，其次在CDEGS中建立原有杆塔接地体的模型，验证仿真计算应用于接地体设计的可行性，最后在CDEGS中进行接地体的优化结构设计，包括增加射线和垂直接地极两种形式，计算结果证明在原有接地体周围增加射线可以起到较好的降阻作用 ...
王旭明 +4 more
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Calculating current and temperature fields of HVDC grounding electrodes
Journal of Modern Power Systems and Clean Energy, 2016 Current field calculation based on the resistance network method (RNM) and temperature field calculation based on the finite volume method (FVM) can be used to evaluate the performance of high-voltage direct-current (HVDC) grounding electrodes.
Zheren Zhang, Zheng Xu, Tao Xu
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Gaoya dianqi, 2014 为研究金属构架遭雷击时的电磁特点及其影响因素,并应用于实际建构筑物的工程计算分析,提出将CDEGS软件应用于于这种计算,并利用电路法、有限元法和实验数据的对比验证了其可行性。文中还对金属构架内雷击电磁特点和部分影响因素进行了分析,得到离雷击点越远的垂直导体分流系数越小、各导体之间区域的磁场强度远小于导体附近等结论,并给出了雷击建构筑物时室内电子设备电磁防护的一些注意点。最后对一通信塔进行了实例分析。综上,CDEGS可应用于雷击室内电磁环境评估,具有一定的科研和业务应用价值。
沈寰, 冯民学, 李晓明
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