In order to understand IT teaching conditions and living environment in the less developed areas of rural primary and secondary school, the paper uses questionnaire survey equipment to investigate education of some ru...In order to understand IT teaching conditions and living environment in the less developed areas of rural primary and secondary school, the paper uses questionnaire survey equipment to investigate education of some rural underdeveloped areas of information technology in primary and secondary school in Jiangxi. And it has analyzed 2011-2013 investment and construction of the status quo in education funding for information technology equipment. The results show: Less Developed Areas in primary and secondary school education information and technology education equipment cannot meet the needs of the development of education with lack of funding support, poor school environment and information technology teaching conditions. And this phenomenon has been analyzed, and effective measures are to improve primary and secondary school education in underdeveloped areas of information technology conditions and educational level.展开更多
一二次融合技术使得配电开关中二次智能传感单元近距离布置于一次高压电磁环境,配电开关因为电磁干扰产生大量故障。文中利用可控电弧放电原理,针对某型号10 k V一二次融合配电开关搭建了暂态电磁干扰模拟试验平台,获得了该户外一二次...一二次融合技术使得配电开关中二次智能传感单元近距离布置于一次高压电磁环境,配电开关因为电磁干扰产生大量故障。文中利用可控电弧放电原理,针对某型号10 k V一二次融合配电开关搭建了暂态电磁干扰模拟试验平台,获得了该户外一二次融合配电开关干扰信号,其中重点研究了智能传感器附近空间磁场规律;对配电终端(FTU)进行了屏蔽效能分析,计算了传感器合并单元电源线受扰情况。结果表明:一二次融合配电开关中智能传感器可能在持续强暂态电磁骚扰下发生严重故障,文中所研究的电磁暂态模拟试验系统可对智能传感器抗强电磁干扰能力进行考核,现有标准不能满足一二次融合结构下智能传感类设备抗强电磁干扰能力检测需求。展开更多
阐述了上海500kV变电站三维仿真培训系统的软硬件结构及网络部署方案,重点介绍了该系统采用的分布式仿真通信中间件(adaptive communication environment,ACE)技术。ACE是该仿真培训系统实现分布式应用的基础,为仿真应用软件提供了透明...阐述了上海500kV变电站三维仿真培训系统的软硬件结构及网络部署方案,重点介绍了该系统采用的分布式仿真通信中间件(adaptive communication environment,ACE)技术。ACE是该仿真培训系统实现分布式应用的基础,为仿真应用软件提供了透明、高效的运行管理通信环境。该系统全面仿真了上海500kV电网输变电运行的主要环节,实现了500kV变电站三维仿真培训,可以正确反映变电站、综合自动化系统和电网的相互作用、相互影响,在二次设备仿真技术、通信方式实现、培训效果等方面有较大改进。现场运行表明该系统在远程网络通信中采用的ACE技术可以减少网络通信流量,可用于电力企业网远程培训。展开更多
文摘In order to understand IT teaching conditions and living environment in the less developed areas of rural primary and secondary school, the paper uses questionnaire survey equipment to investigate education of some rural underdeveloped areas of information technology in primary and secondary school in Jiangxi. And it has analyzed 2011-2013 investment and construction of the status quo in education funding for information technology equipment. The results show: Less Developed Areas in primary and secondary school education information and technology education equipment cannot meet the needs of the development of education with lack of funding support, poor school environment and information technology teaching conditions. And this phenomenon has been analyzed, and effective measures are to improve primary and secondary school education in underdeveloped areas of information technology conditions and educational level.
文摘一二次融合技术使得配电开关中二次智能传感单元近距离布置于一次高压电磁环境,配电开关因为电磁干扰产生大量故障。文中利用可控电弧放电原理,针对某型号10 k V一二次融合配电开关搭建了暂态电磁干扰模拟试验平台,获得了该户外一二次融合配电开关干扰信号,其中重点研究了智能传感器附近空间磁场规律;对配电终端(FTU)进行了屏蔽效能分析,计算了传感器合并单元电源线受扰情况。结果表明:一二次融合配电开关中智能传感器可能在持续强暂态电磁骚扰下发生严重故障,文中所研究的电磁暂态模拟试验系统可对智能传感器抗强电磁干扰能力进行考核,现有标准不能满足一二次融合结构下智能传感类设备抗强电磁干扰能力检测需求。
文摘阐述了上海500kV变电站三维仿真培训系统的软硬件结构及网络部署方案,重点介绍了该系统采用的分布式仿真通信中间件(adaptive communication environment,ACE)技术。ACE是该仿真培训系统实现分布式应用的基础,为仿真应用软件提供了透明、高效的运行管理通信环境。该系统全面仿真了上海500kV电网输变电运行的主要环节,实现了500kV变电站三维仿真培训,可以正确反映变电站、综合自动化系统和电网的相互作用、相互影响,在二次设备仿真技术、通信方式实现、培训效果等方面有较大改进。现场运行表明该系统在远程网络通信中采用的ACE技术可以减少网络通信流量,可用于电力企业网远程培训。