As a particular user of the power system,electric railway has the characteristics of non-linear,asymmetric and volatility.The power quality indicators of electrified railway were analyzed and summarized in this paper.The harmonic content rate reference value of various types of locomotives was given as well as the calculate method using in the power quality assessment,which are suitable for engineering applications.At last,this paper gives several effective measures on improving the power quality.

关键词：电气化铁路；电力系统；电能质量；评估

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his U.S. Department of Energy (DOE) Concentrating Solar Power Program Review Meeting booklet will be provided to attendees at the Concentrating Solar Power Review Meeting in Phoenix, Arizona on April 23-25, 2013. The Program Review features presentations by DOE awardees working at the forefront of research, development, and demonstration towards reducing costs and increasing performance of CSP technologies. The Review also brings together a broad base of external stakeholders to engage in and contribute to the deployment of the CSP technologies being developed under the SunShot Initiative.

关键词：太阳能；聚光集热器；技术评估；绩效评价

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This study provides a framework to explore the potential use and incremental value of small- to large-scale penetration of solar and wind technologies as a physical hedge against the risk and uncertainty of electricity cost. The idea that adding renewable energy (RE) to a conventional fossil portfolio generates diversity-related benefits is not new and has been discussed by many others (e.g., Bolinger et al. 2002; Awerbuch and Berger 2003; Bazilian and Roques 2008; Roques et al. 2010). Similarly, there may be related benefits from combining RE and natural gas generation (Lee et al. 2012; Weiss et al. 2013) as well as from combining wind and solar within the RE component of the larger portfolio. The core idea behind the value of diversification, of not putting all the eggs into one basket--or in this case electric generation technologies--has widespread acceptance. In finance applications the value of diversification forms the foundation behind the application of mean-variance portfolio (MVP) theory to choose efficient portfolios of stocks and bonds (Markowitz 1952). The related concept of quantifying the value of diversity in the electric sector that may result from reducing the risk and uncertainty of the overall system costs over multi-year to multi-decade time horizons is less well understood or accepted (Stirling 1994; Awerbuch and Berger 2003). Adding RE can be expected to reduce the variability of the overall electric system costs over a variety of timescales as natural gas-fired generation is displaced. However, the direct application of MVP theory to optimize the mix of generation assets within a generation portfolio is problematic for a number of reasons, including the fact that the operational characteristics of some types of generation assets are dissimilar.

关键词：电力系统；太阳能；风电；能源消耗；发电

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In order to solve the problem which is very common when we use a solar water heater for a shower but the hot water can not come immediately because of the cooled water remained in the pipeline, a no-pump cycling water-saving equipment is designed based on a pressure-regulated suction device, temperature acquisition control circuit and a water-saving box.The kinematics and mechanics parameters are confirmed on the result of calculation and software simulation, and are tested by doing physical experiment.It can make it come true to economize the water and energy for solar power heater.

关键词：太阳能热水器；节水；无泵；压力调节吸力

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The electric power system in North America is linked between the United States and Canada. Canada has historically been a net exporter of electricity to the United States. The extent to which this remains true will depend on the future evolution of power markets, technology deployment, and policies. To evaluate these and related questions, we modify the Regional Energy Deployment System (ReEDS) model to include an explicit representation of the grid-connected power system in Canada to the continental United States. ReEDS is unique among long-term capacity expansion models for its high spatial resolution and statistical treatment of the impact of variable renewable generation on capacity planning and dispatch. These unique traits are extended to new Canadian regions.

关键词：电力系统；可再生能源；空间分辨率；电力

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The article describes how to use MCU that the latest low-cost of ATMEL SAM3 series to achieve the ideas and implementation methods of smart grid collector,and elaborates the specific programs from hardware to software implementation process.The schemes has the advantages of low-cost,high-performance,and high-reliability and meets the actual needs of hardware resources,the demanding requirement of cost-performance and reliability in the power industry,and now it has been applied in the National Grid collector.

关键词：电力系统；ATMEL SAM3N；电力收集器；智能电网

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This study focuses on the feasibility of using solar energy on Department of Defense (DoD) installations located throughout the Middle East. These DoD installations are currently using electricity generated from the local power grid at commercial rates, or generated by contractor-provided diesel generators. As an alternative, the effective use of solar energy may result in considerable savings and operational efficiency. In contrast to oil prices, the cost of renewable energy has been declining rapidly in recent years. The cost of solar panels, for example, has decreased by more than 60 percent since 2009 (Reichart, 2011). The aim of this paper is to carry out an analysis of the use of solar photovoltaic (PV) panels at DoD installations with respect to their cost-effectiveness in installation, operation, maintenance, security, sustainability, and reliability. We will examine meteorological data that provide the average monthly sunlight levels for different geographical areas, information on the effectiveness of the commercial solar PV panels currently available, electricity consumption levels for DoD installations at different times of the day, and current cost structures. Noneconomic attributes of solar installations also need to be considered to properly assess the feasibility of solar power as a substitute for current sources of electricity. The research is limited to evaluating the feasibility of using solar PV panels for electricity generation in forward operating bases. We have analyzed a trend in levelized cost of electricity (LCOE) for solar PV panels and have come to the conclusion that solar PV panels will become competitive with grid energy around 2020, provided that current growth projections in installed capacity and a corresponding decrease in the cost of solar PV-generated electricity continue. In light of our findings, we are confident that solar PV has the potential to compete with grid electricity in the near future.

关键词：电力生产；光电细胞（半导体）；太阳能电池板；太阳能

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This chapter presents a review of the main application areas of high performance computing in electrical energy systems and introduces some results obtained with the implementation of parallel computing to some relevant problems encountered in the planning, operation and control of such systems. The research topics described in the paper are optimization of hydrothermal systems operation, tunning of multiple power system stabilizers, security constrained optimal power flow, composite reliability evaluation, dynamic security assessment, and distribution network reconfiguration. Most of the work described includes results obtained with tests conducted using actual models of electrical energy systems.

关键词：高性能计算；电力能源系统；安全约束；热液系统

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本报告从能源行业事件分析；竞争环境、竞争对手、行业数据等几个方面进行了分析评论。

关键词：行业事件分析；竞争环境；竞争对手；行业数据

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The Smart Grid is expected to increase the efficiency of the current power grid, to cope with volatile power production based on renewable resources, to reduce the need for fossil-based energy resources, and to guarantee the stability of power supply. To achieve these objectives, today's power grid is enhanced by information and communication technology to increase the information flow and to enable a sophisticated power production and power demand management. However, as the power grid is extended to a network of networks, it does not only become smarter, but also more vulnerable to security threats. This chapter discusses the current status and future developments of the Smart Grid and its challenges. Enhancements in terms of energy efficiency and new energy management approaches are covered as well as novel security challenges in different parts of the Smart Grid architecture. In short, this chapter analyzes some of the most striking risks and threats concerning the new Smart Grid infrastructure and discusses interdependencies between energy efficiency and security in the Smart Grid.

关键词：智能电网；可再生资源；信息流；电力需求管理

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