针对一起35 k V开关柜内接地刀闸静桩头处的绝缘罩起火问题,分析和验证了可能引起故障的各种原因。结果表明故障的直接原因是绝缘挡板支架断裂导致挡板散落并倾覆在绝缘罩,造成此处电场改变而发生放电最终引燃了绝缘罩。而开关柜的安装...针对一起35 k V开关柜内接地刀闸静桩头处的绝缘罩起火问题,分析和验证了可能引起故障的各种原因。结果表明故障的直接原因是绝缘挡板支架断裂导致挡板散落并倾覆在绝缘罩,造成此处电场改变而发生放电最终引燃了绝缘罩。而开关柜的安装基础存在问题造成了支架断裂是引起此次故障的根本原因。最后总结了事故的经验和教训,提出了避免同类故障再次发生的防范措施,提高开关柜运行可靠性。展开更多
Novel centralized base station architectures integrating computation and communication functionalities have become important for the development of future mobile communication networks.Therefore,the development of dyn...Novel centralized base station architectures integrating computation and communication functionalities have become important for the development of future mobile communication networks.Therefore,the development of dynamic high-speed interconnections between baseband units(BBUs)and remote radio heads(RRHs)is vital in centralized base station design.Herein,dynamic high-speed switches(HSSs)connecting BBUs and RRHs were designed for a centralized base station architecture.We analyzed the characteristics of actual traffic and introduced a switch traffic model suitable for the super base station architecture.Then,we proposed a data-priority-aware(DPA)scheduling algorithm based on the traffic model.Lastly,we developed the dynamic HSS model based on the OPNET platform and the prototype based on FPGA.Our results show that the DPA achieves close to 100%throughput with lower latency and provides better run-time complexity than iOCF and HE-iSLIP,thereby demonstrating that the proposed switch system can be adopted in centralized base station architectures.展开更多
文摘针对一起35 k V开关柜内接地刀闸静桩头处的绝缘罩起火问题,分析和验证了可能引起故障的各种原因。结果表明故障的直接原因是绝缘挡板支架断裂导致挡板散落并倾覆在绝缘罩,造成此处电场改变而发生放电最终引燃了绝缘罩。而开关柜的安装基础存在问题造成了支架断裂是引起此次故障的根本原因。最后总结了事故的经验和教训,提出了避免同类故障再次发生的防范措施,提高开关柜运行可靠性。
基金the key project of the National Science and Technology Major Project(Grant No.2018ZX03001017)the project of the CAS engineering laboratory for intelligent agricultural machinery equipment(Grant No.GC201907-02).
文摘Novel centralized base station architectures integrating computation and communication functionalities have become important for the development of future mobile communication networks.Therefore,the development of dynamic high-speed interconnections between baseband units(BBUs)and remote radio heads(RRHs)is vital in centralized base station design.Herein,dynamic high-speed switches(HSSs)connecting BBUs and RRHs were designed for a centralized base station architecture.We analyzed the characteristics of actual traffic and introduced a switch traffic model suitable for the super base station architecture.Then,we proposed a data-priority-aware(DPA)scheduling algorithm based on the traffic model.Lastly,we developed the dynamic HSS model based on the OPNET platform and the prototype based on FPGA.Our results show that the DPA achieves close to 100%throughput with lower latency and provides better run-time complexity than iOCF and HE-iSLIP,thereby demonstrating that the proposed switch system can be adopted in centralized base station architectures.
