我国电力价格问题分析与改革建议

本文首先从经济学角度分析了自然垄断行业的定价,回顾并分析了中国20世纪80年代以来的电价改革,指出了前两次改革的得失,然后针对中国的电力定价机制,分析了现行电价存在的问题,最后从政府和企业两个方面提出了相应的措施。     

小型潜水电泵监督抽查的技术标准

文章提出了小型潜水电泵监督抽查依据的国家行业技术标准。     

X62W型万能铣床电气控制线路的改进

文章就目前X62W型万能铣床的电气控制线路进行了分析与研究,指出了该线路在设计上的一些缺陷,并对原有线路的设计缺陷提出了改进方案.这一改进方案在X62W型万能铣床的模拟电路图上进行了实际安装和运行,其特点是：设计简单,安装方便,在不改变原有电路操作程序的基础上,使X62W型万能铣床在电气功能上更加完善,使机床的操作更为方便与安全.     

The DEA-stochastic Frontier Analysis of Electric Power Industry

Stochastic frontier analysis is an effective method to analyze the efficiency of DMU, but the decomposition of the error is difficult. By OLS, adopting DEA to dispose the management error of stochastic frontier analysis can resolve the difficulty of the decomposition of the error. By an example of electric power industry, DEA-stochastic frontier analysis is discussed in this paper, and the character of this method is analyzed in the end.     

Demand for electric vehicles in hybrid households: an exploratory analysis

Previous studies of the potential market for battery electric vehicles (BEVs) from different research streams have failed to converge on a single, robust estimate. What these previous research streams share are untested or implausible assumptions about consumer response to new transportation technology. We frame the BEV purchase decision in terms of a household's entire stock of vehicles, car purchase behavior and travel behavior. Within this framework, households which own both electric vehicles and gasoline vehicles are called ‘hybrid households’. Because nearly all consumers are unfamiliar with the characteristics of BEVs, we designed an interactive interview based on week-long travel diaries, which we call Purchase Intentions and Range Estimation Games (PIREG) to explore hypothetical hybrid household vehicle use. Our primary finding is that consumers' perceived driving range needs are substantially lower than previous hypothetical stated preference studies conclude. We find evidence of a viable market for BEVs with 60 to 100 miles driving range.     

关于开展银电联网代收系统推广意义的探讨

交电费难一直是困扰供电企业的一个难题。形成的主要原因是一方面用电客户随着经济增长和地方城乡统筹建设而增加,另一方面供电企业营业网点投入少,营业网点建设缓慢,导致客户缴费不便。     

兖矿集团煤电铝产业链模式浅论

回顾了兖矿集团煤电铝产业链的发展现状,分析了兖矿集团煤电铝产业链形成和发展的原因,论述了兖矿集团实施煤电铝产业链发展模式的具体实践。     

煤炭行业科学发展之煤电融合

根据煤电融合的现状和模式,对煤电融合的动因及产生的问题进行了深入分析,并提出具体的政策性建议,对我国煤电融合的理论研究以及促进煤炭行业科学发展都具有一定的借鉴意义。     

冲击电压下特高压支柱绝缘子表面电场研究

特高压输变电工程对支柱绝缘子提出了更高的技术要求,运行中支柱绝缘子会因雷击发生污闪,而支柱绝缘子的电场、电位分布和闪络现象存在一定关系。为研究特高压支柱绝缘子表面电场分布特性,建立了1 100kV支柱绝缘子的有限元计算模型。理论分析与仿真结果表明,雷电冲击电压作用下支柱绝缘子表面电场分布随时间变化的曲线在波形上与激励源雷电波的波形相似,第一对和最后一对大小伞的电场强度较大,中间大小伞的电场强度较小,最大场强点位于金属电极下端的绝缘护套表面。     

Analysis of the effect of charging infrastructure design on electric taxi driving profiles: A case study approach on the example of Singapore

Replacing conventional vehicle taxis with electric vehicles would be an efficient measure to reduce greenhouse gas emissions. Due to the limited range and long charging times of current battery electric vehicles, it is of utmost importance to provide sufficient charging facilities. This article analyses the impact of the placement and charging power of charging stations on potential mileage and revenue of electric taxis on the example of Singapore. Therefore, we developed an agent-based electric taxi simulation model to investigate electric taxis’ driving profiles with respect to different vehicle types and charging infrastructure designs. This model is also capable of simulating conventional taxi driving profiles. The validation of these simulation results with real taxi data showed that the model is reproducing taxi driving profiles with high accuracy in great detail. We found out that electric taxis could reach the same mileage and revenue as conventional taxis if charging with a power of 160?kW is possible. Furthermore, we discovered that waiting times for available charging stations have a stronger effect on revenue than the length of detours to reach charging stations. Based on these findings, we concluded that it is more important to reduce waiting times by placing sufficient numbers of charging stations at each location before expanding the charging network by installing small numbers of charging stations at many locations.