Gaoya dianqi, 2014 选相控制技术在抑制电力系统暂态冲击方面,较传统的安装合闸电阻、增设避雷器等方法更具经济性和先进性。随着智能变电站技术的应用和推广,智能化对选相控制技术提出了新的要求。笔者阐述了智能化选相控制设备的过程层接口实现、过程层数据通讯及设备安装方式,根据智能组件功能集成程度提出了智能选相控制设备两种不同的实现模式,并讨论了该设备的IEC 61850建模及信息交互方式,最后对选相误差控制技术及高级应用进行了总结和展望。
须雷 +5 more
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[Efficacy and safety of TBI+rATG-based conditioning regimen for haploidentical allogeneic hematopoietic stem cell transplantation in 11 cases of chemotherapy-resistant advanced peripheral T-cell lymphoma]. [PDF]
Zhonghua Xue Ye Xue Za Zhi, 2023 Xu R +8 more
europepmc +1 more source
Gaoya dianqi, 2018 半波长交流输电线路电压等级高,故障后需要选相跳闸。但是半波长输电线路独特的电气特征使得传统的故障选相方法不再适用。文中提出了一种基于双端电气量的半波长交流输电线路故障选相方法。将两端相间电压、相间电流进行组合变换,换算到短路点正负序短路电流,从而判断故障相。基于电磁暂态仿真软件PSCAD搭建特高压半波长输电线路仿真模型。仿真结果表明,该故障选相方法不受故障位置、过渡电阻、弱馈等因素的影响,在半波长交流输电线路发生短路故障时,能快速正确地实现故障选相。
陆金凤, 赵青春, 谢华, 朱晓彤
doaj
[Determination of free amino acids in Eriocheir sinensis by ultra-high performance liquid chromatography-high resolution mass spectrometry]. [PDF]
Se Pu, 2022 Gao L +8 more
europepmc +1 more source
Gaoya dianqi, 2016 文中以西安南750 kV GIS电站为工程背景,研究取消750 kV GIS中隔离开关分合闸电阻的可行性。依据西安南750 kV GIS结构和电气接线选取了7种典型的运行方式,建立了ATP-EMTP仿真计算模型,分别对不同方式下隔离开关进行分合闸操作,研究分析各设备节点的电压幅值。对幅值较高的电压波形进行幅频分析,对过电压及VFTO进行绝缘配合校验。计算结果表明:取消隔离开关分合闸电阻后,不同接线方式下操作隔离开关时,进线套管、与被操作隔离开关相邻的断路器 ...
魏磊 +5 more
doaj
[Research advances on mental disorders in patients with extensive burns]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023 Gu GX, Ran MZ, Li MM.
europepmc +1 more source
[Impact of immunosuppression intensified conditioning regimen for patients with strong positive pre-transplantation donor-specific anti-HLA antibodies (DSAs) undergoing haploidentical hematopoietic stem cell transplantation]. [PDF]
Zhonghua Xue Ye Xue Za Zhi, 2023 Liu HX +7 more
europepmc +1 more source
[Neuromodulation: Past, Present, and Future]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue Ban, 2022 Xie HT, Zhang JG.
europepmc +1 more source
Gaoya dianqi, 2016 文章研究了真空断路器相控精度与容性关合涌流幅值及频率的数值关系。并基于PSCAD仿真模型,采用最小二乘拟合的方法,从工程应用角度给出了数值表达式。讨论了真空断路器容性分断不考虑重击穿条件下时断口过电压及电容器过电压情况;给出了真空断路器容性投切选相精度控制区间;提出了真空断路器容性关合角度应控制在超前目标合闸角角度区间内的观点。
曹先平 +6 more
doaj
[Determination of fatty acids compositions and contents in Chinese mitten crabs by gas chromatography]. [PDF]
Se Pu, 2021 Shen Z +6 more
europepmc +1 more source