基于B/S架构的嵌入式远程用电管理系统

针对校园中现有用电管理系统的存在的缺陷与弊端,提出了一种基于B/S架构的嵌入式远程用电管理系统的解决方案;系统以ARM-CORTEX-A8为主控板的核心处理器,Linux操作系统为应用程序的运行环境,同时在Linux系统中搭建了嵌入式BOA服务器;系统中使用html语言完成系统与用户的交互页面,并通过CGI技术实现了浏览器与嵌入式服务器的数据交互;为不改变原有建筑电力布线,系统终端采用zigbee无线网络实现远程的用电监控,从而实现远程用电管理系统;为使系统运行效率高,主进程中使用多线程技术完成系统中各任务,系统中使用数据共享内存的方式完成各进程间的数据通信,使用消息队列实现客户端对系统终端设备的控制,系统中通过sqlite3数据库完成所有历史数据的记载;通过系统实验测试,该系统可以正确响应用户需求以及满足校园内所设置的合理用电申请的远程用电管理要求,在安全、节约用电的同时有最大程度的方便了校园内非常规工作需求。     

智能小区电能远程抄表系统的设计

依托Internet网和无线移动通线网的普及,提出了基于嵌入式TCP/IP协议芯片S7600A的电能远程抄表系统设计方案,较好地解决资源有限的电能计量系统与Internet连接问题,实现了小区用户电能的集中式抄表功能,同时保证了信息传输的实时性和可靠性.     

DCS系统供电及接地研究

本文介绍了DCS系统供电及接地有关问题,以及如何解决。     

The political economy of metering agricultural tube wells in West Bengal,India

Unmetered electricity supply to agriculture has given rise to a unique and invidious water–energy–food nexus in India. Metering of agricultural consumers has been suggested as a way to break the nexus, but most states have not been able to meter farmers due to their opposition . The only exception is the state of West Bengal. Using primary data from a household survey conducted in 2010 when the metering process was still underway, this paper argues that farmers’ support for metering in West Bengal can be explained in terms of the economics of groundwater use and politics surrounding agriculture and groundwater in the state.     

分布式能源发展的新机遇

中国为避免能源安全的隐患,兑现低碳减排的承诺,降低煤炭在一次能源中所占的比例,调整能源结构势在必行.这为燃气分布式能源提供了机遇.随着天然气进口量和开采量的增加,替代气源的快速增长,以及生物质发电技术的逐渐成熟,发展分布式能源的物质基础已经齐备.国家对发展分布式能源的推动政策逐年升级,支持力度逐渐加大,以五大发电集团为代表的能源企业也在积极运作.综上所述,各因素将形成合力,推动中国分布式能源的发展进入快车道.     

Sensitivity to electricity consumption in urban business and commercial area buildings according to climatic change

Recently, urban high temperature phenomenon has become a problem which results from human activities, the increase in energy consumption, and land-cover change in urban areas. As extremely hot weather caused by urban high temperature continues, demand for power is increased and results in the degradation of electricity reserves. The current trend in climate change, regardless of the summer and winter power demand, is likely to have much effect on the power demand. Thus, sensitivity to electricity consumption in urban areas due to climate change was researched. The results show that, 1) the basic unit of the sensitivity to electricity consumption in the target areas is 1.25–1.58W/(m²·°C); 2) The maximum sensitivity is recorded at around 8:00 pm in the area crowded with commercial and business area. And in the business area, electricity consumption load is even from 9:00 am to 6:00 pm.     

直购电模式下输配电服务固定成本的分摊方法

介绍了固定成本的分类、计算,以及目前固定成本所使用的分摊方法.根据跨省大用户直购电的特点,将固定成本进行了详细分类.不同类型的成本由于其影响因素不同,采用不同的分配方法,可使得固定成本在各交易之间的分摊更加合理、准确.     

Performance of Sewage Sludge Treatment and Electricity Generation by Different Configuration Microbial Fuel Cells

This paper compared the degradation efficiency of sludge organic matters and electric-production by two typical microbial fuel cells——dual-chamber microbial fuel cell(DMFC)and single chamber air cathode microbial fuel cell(SAMFC),and the variations of sludge protein,polysaccharide and ammonia nitrogen within the systems were also investigated.The results showed that the concentration of sludge soluble chemical oxygen demand,protein and carbohydrate of DMFC are higher than these of SAMFC during the systems operation,while DMFC can achieve a better ammonia nitrogen removal than SAMFC.Under the same operation condition,the stable voltage output of DMFC and SAMFC is 0.61 V and 0.37 V;the maximum power density of DMFC and SAMFC is 2.79 W/m3and 1.25 W/m3;TCOD removal efficiency of DMFC and SAMFC is 34.14%and 28.63%for 12 d,respectively.Meanwhile,DMFC has a higher coulomb efficiency than SAMFC,but both are less than5%.The results showed that DMFC present a better performance on sludge degradation and electric-production.     

关于“四步路”提高售电量计划管理水平的探讨

电量计划制定的合理与否,直接影响着供电企业的经营和效益。售电量计划的管理对于增供扩销、扩大市场、增加效益有着非常重要的意义。走好“四步路”,可以有效提高售电量计划管理水平。分别是：制定合理的年度计划、分解月度计划、考核、执行情况跟踪分析。四个环节相辅相成、有机衔接、互相影响、互相促进,形成闭环管理。     

基于业扩报装的全社会电量预测方法研究

电力系统需求侧业扩报装的容量是分析预测全社会用电量的一个重要参考指标,长期以来,都以定性分析为主,文章以安徽为例,在对相关变量进行季节性分解的基础上,建立业扩报装容量和全省全社会用电量之间的定量关系月度模型。结果表明所建模型预测结果具有较高参考意义,并适用于短期月度电量预测。