高效节能型建筑电力电气系统设计与应用

面对全球能源资源的紧缩和对环境保护要求的增加,高效节能型建筑电力电气系统的开发和应用已经成为建筑学科研究的焦点,该类型系统致力于实现能源的高效利用和消耗的最小化,同时确保建筑物的功能性和居住的舒适度,通过深入探讨高效节能型建筑电力电气系统的设计理念、实施策略和实际运用效果,展示了该系统在提高建筑整体能源效率、降低建筑运维成本以及推动建筑业可持续发展方面的突出贡献,进一步地分析了在设计和实施高效节能电力电气系统过程中所面临的挑战与解决方案,旨在为未来的建筑设计和建造提供一条既节能高效又环保的道路。

高层建筑电力电气系统线路安装节能施工分析

在高层建筑中,电力电气线路系统的安装施工是非常重要的一个步骤,对电力电气系统线路的合理性和各种电气装置的稳定运行都有很大的影响。鉴于此,文章就高层建筑电力电气系统线路安装节能施工进行了相应研究,即分析了高层建筑电力电气系统线路安装节能施工的原则,重点探究了高层建筑电力电气系统线路安装节能施工现状、施工要点、施工质量控制措施。

油田小区电力电气系统设计

江汉油田规划中的世纪苑小区是一个大型的康居型小区。对该住宅小区电力电气系统设计的基本要求是:安全性、功能性、方便性、可扩展性,这就要求电力电气专业设计要有一定的超前意识。同时,为了避免在过去油田新建住宅小区设计中出现的失误,总结经验教训,在电力电气系统设计中,

电力电气系统中高性能陶瓷材料的检测与应用研究

在现代材料不断优化与发展的背景下,陶瓷材料凭借其耐高温、耐磨损、耐腐蚀等优势,在多个行业中得到了广泛应用,而电力行业也不例外。对于电力电气系统而言,目前,电气设备正在逐渐向着微型化方向发展,陶瓷材料的性能及体积优势也得到了进一步彰显。故此,文章针对电力电气系统中高性能陶瓷材料的检测以及应用进行分析。首先,针对目前电力电气系统中应用较为普遍的耐磨损陶瓷内衬、耐磨损陶瓷件进行分析。随后,将高性能陶瓷材料的介电性能作为研究对象,分析了检测方式,以便为高性能陶瓷材料在电气电力系统中的普及应用提供参考。

基于机车数据库系统的海外电力机车电气系统优化

本文探讨了某型号(以下简称S型)批量海外电力机车项目技术支持存在的困难,简要阐述了机车数据库系统在S型机车电气系统优化改进及现场维护的应用重要性,并介绍了机车数据系统组成及车载数据组成。基于数据库系统进行了S型机车WTD(Wireless data Transmit Device,无线数据传输装置)装置GPS(Global Positioning System,全球定位系统)、GSM(Global System for Mobile Communication,全球通)上线率提升、能量管理系统数据质量优化等技术支持及维保维护实践应用。大大提高了与地域线路相关故障的分析效率,大幅降低了海外电力机车项目电气系统的优化改进、维护成本。在电气系统质量提升过程中机车数据库系统的应用对海外电力机车项目技术支持具有借鉴意义。

自动化技能在电厂电气系统中的应用简况

在现代化的信息技术蓬勃发展进程中,智能自动化技术逐步出现在各行各业的生产发展中不断涌现,特别是在我国的电力行业中,自动化技能的高效应用极大地便利了社会大众的生活和工作。每个发电站中都有一个固定的电厂电气系统作为支撑,而且在我国用电量逐步增加的情况下,发电厂需要扩大电力系统的发展规模,另外,紧密结合了自动化技能的电气系统才会更加稳固,工作效果才能够得到极大的提升。本文简要地阐述了在自动化技术的影响下我国电厂电气系统的实际运用措施,以此推动了我国电力行业的可持续、健康发展。

Analysis on the Application of Reactive Power Compensation Technology in Electrical Automation

This paper introduces in detail the reactive power compensation technology and its characteristics, to reduce the loss of reactive power compensation technology 1N power distribution system and the electrical automation, improve the utilization rate, and realize the control of the voltage amplitude in the system network, voltage stability of power distribution system, has carried on the system analysis to reduce failure of the harmonic current to the power supply system and other functions. And the paper in-depth study on the application of reactive power compensation technology in electrical automation from the reactive compensation technology, substation and distribution line reactive power compensation, power users of reactive power compensation and other aspects.

Comparative Study of Three Phase 3-Leg Active Power Filters Connected to 4-Wire Electrical Systems

This paper presented the simulation results of the three phase electrical systems supplied by four wires with power quality problems, to which the parallel 3-leg APF （active power filters） are connected. The purpose of this study is to analyze the results obtained in these conditions in order to observe the limits of the 3-leg active power filters and to form a foundation for the future studies of the 4-leg active power filters. For a complete analysis, the APF will be controlled by four control methods： synchronous reference system control, indirect control, instantaneous p-q theory control, and positive sequence control. The analysis will watch the power quality indicators： THD （total harmonic distortion factor）, PF （power factor）, Iunb （unbalance factor）.

Modern Electrical Power Source on New System of Dissipation and Renewable Energies Sources

This paper presents some solutions of modem renewable energy system applied actually in dissipation energy source： wind turbine, solar panel battery charge, SSS （support set system）, and standby diesel generator cooperated in series, parallel and hybrid system with main energy system. Its solution enable obtain independent individual energy source in different work exploitations. One of problems concerned with alternative energy source is changes of output voltages and output power dependence of climatic conditions. Possible solution is application of decoupled adjustable speed generation system in renewable energy generation. The decoupled generation system consists of： alternative energy source, internal combustion engine drives permanent magnet generator and DC/AC, or AC/AC converter. Performance of single decoupled generation set is discussed supported by results of laboratory tests. To provide high quality voltage is applied an additional energy storage, made from super capacitor and bidirectional DC/DC convert. Such system performs very stiff voltage in any load condition. Integration of solar battery panels or renewable wind energy system is provided via DC link of the variable speed decoupled autonomous generation system. Results of computer simulation and laboratory experiments are presented in the paper.

Rethinking the Power Shortage of China in 2011

As the opening year of the ＂Twelfth Five-Year Plan,＂ driven by the steady and fast economic growth, the year of 2011 saw China＇s rising demand for electricity, resulting in regional power shortages. Sub）ected to multiple factors such as the weather conditions, the contradictions between coal supply and power generation and the structural problems in the power system, power supply shortage across the nation became increasingly critical At the same time, the Northeast and Northwest China, plus Inner Mongolia, often experienced power generation surplus and difficulties in sending power to other regions. This paper reviews the overall situation of the national electric power supply in 2011, elaborates on the current contradictions in the power demand and supply and presents an in-depth analysis of causes and corresponding countermeasures.

Long Range Unmanned Aircraft System for Power Line nspection of Brazilian Electrical System

Power line inspection is an essential procedure in the power lines maintenance area, especially thinking about service availability and energy efficiency. Aerial inspection of electric power transmission lines is typically performed using human-piloted helicopters, which is a procedure that is both expensive and prone to accidents taking risks to human beings＇ lives. The work presents a solution based on UAS （unmanned aircraft system） for inspecting power lines. In this context a R ＆ D project of an unmanned aircraft system to be used for performing complete aerial inspection of overhead power lines is being executed by ITA （Instituto Tecnol6gico de Aeron^utica） （Technological Institute of Aeronautics） in Brazil. Special attention is dedicated to the communication system conception in order to comply with Remotely Piloted Aircraft System definition in the context of long endurance operations of the system. It presents a solution based on LTA （lighter than air） platform in order to extend the communication range beyond line of sight.

Dependency of Electrical Demand of Bangladesh Power System on the Weather of the Country

The variation of electrical demand above its base value is its common characteristic. The weather dependent variation of demand, especially where the weather is severe in nature, requires a significant reserve margin of the generation system. The evaluation of the weather dependent component of the electric demand is the basic tool for the planning of the reserve margin. This paper evaluates the weather dependent portion of the load of BPS （Bangladesh power system）. The evaluation of the weather dependent portion of the demand is based on the EMD （empirical mode decomposition） technique.

Potentialities of Renewable Energy in Victoria, Australia

In utility power system, electricity demand is being covered largely by fossil fueled power generation, which contributes high level of GHG （greenhouse gas） emission and causes global warming worldwide. In order to reduce GHG emission level, most of the countries in the world targeting towards green energy that is power generation from RE （renewable energy） sources. In this paper, it is considered to study prospects of RE sources in particular, solar and wind in Victoria State which are abundant as compared to other sources of renewable. The wind and solar energy feasibility study and sensitivity analysis has been done for Victoria with the aid of HOMER （hybrid optimization model of electric renewable） simulation software. From the study, it has clearly evicted that wind energy combinational HPS （hybrid power system） has more contribution, and high potential than solar PV （photovoltaic） systems for a particular location. This study also investigates the influences of energy storage in the proposed HPS.

Recent advances on smart grid technology and renewable energy integration

With the integration of renewable energy generations and other related changes,the smart grid,or the future electric power system,is confronted with new challenges and opportunities.Therefore,it is a promising subject in electrical engineering and much work has been done on it.This paper reviews the recent advances on the technologies of smart grid and renewable energy integration,from the aspects of modeling,simulation,protection and control,stability,operation,and planning.

Review on Partial Discharge Detection Techniques Related to High Voltage Power Equipment Using Different Sensors

When operating an equipment or a power system at the high voltage, problems associated with partial discharge （PD） can be tracked down to electromagnetic emission, acoustic emission or chemical reactions such as the formation of ozone and nitrous oxide gases. The high voltage equipment and high voltage installation owners have come to terms with the need for conditions monitoring the^process of PD in the equipments such as power transformers, gas insulated substations （GIS）, and cable installations. This paper reviews the available PD detection methods （involving high voltage equipment） such as electrical detection, chemical detection, acoustic detection, and optical detection. Advantages and disadvantages of each method have been explored and compared. The review suggests that optical detection techniques provide many advantages in the consideration of accuracy and suitability for the applications when compared to other techniques.