Lithium batteries with voltage compatibility with conventional systems

The possibility of using lead or lead—bismuth mixed oxides as positive materials in organic electrolyte lithium cells with a working voltage similar to those of conventional systems (1.5 V) has been considered. Performances and main characteristics of this new class of lithium batteries are described.     

配出中性导体的IT系统带非线性负载研究

阐述了配出中性导体的IT系统应用于船舶岸电的条件及优越性,综合考虑电压畸变率、中性导体电流等因素,分析了配出中性导体的IT系统带非线性负载时谐波电流规律。在Simulink／MATLAB中建立了系统仿真模型,并搭建了原型系统进行试验,结果表日月,配出中性导体的IT系统带非线性负载时满足现行国标对低压配电系统电能质量的相关要求。     

风电并网的静态电压稳定性研究

应用P-V曲线法对含风电场（基于变速恒频机组构成）的电力系统的静态电压稳定问题进行研究。提出基于连续潮流法的灵敏度指标来分析风电场并网后系统的静态电压稳定裕度及与相关支路的参与程度情况。通过含有变速恒频机组的风电场并网的简化模型算例进行了仿真研究,结果表明在电压稳定极限点附近,风电功率注入使得风电场及其附近节点成为电压不稳定的关键区域。     

CANDU with hydrogen

How Canada's successful CANDU (CANada Deuterium Uranium) nuclear power reactors would benefit from an emerging hydrogen-electric economy and vice versa is discussed with reference to the Combined Electrolysis Catalytic Exchange (CECE) process for recovering byproduct heavy water from electrolytic hydrogen. At the heart of this process is a hydrophobic, dispersed-platinum catalyst which has been under development at Chalk River for about a decade. Other potential applications of the CECE process are presented, including tritium recovery from both light and heavy water. Based on preliminary data and cost estimates, the net heavy water dollar credit appears to be at least comparable to the byproduct oxygen credit of electrolytic hydrogen. The potential for byproduct heavy water production from hydrogen in general, and from electrolytic hydrogen in particular, is discussed in relation to Canada's present primary heavy water production capacity.     

Up with wind

As wind power continues to be one of the fastest-growing energy sources worldwide, utility planners and operators must meet the challenge of integrating increasing levels of wind power into their electrical power systems. These challenges stem from the nondispatchable nature of wind power and can be broken down into components associated with variability (i.e., effects due to the changing wind resource) and uncertainty (i.e., effects related to our inability to perfectly forecast the weather). In the past, utilities were often motivated to conduct an integration study to determine the costs associated with integrating wind power into their systems; recently, however, there has been a move away from a simple determination of wind-integration costs and towards a balanced view of both integration costs and operational savings due to displaced fuel and emissions.