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mianxiang21
- 回顾一个多世纪以来电力工业和电力系统的发展,深感由于经济发展和技术进步带来的巨大变化。上世纪的80~90年代,是电力系统的初创时期。据记载,1882年在美国纽约建成了世界第一个完整的电力系统。这是一个由发电机、电缆和负载组成的直流电力系统。然而由于直流输电系统的局限性,人们转而研究交流输电技术,并在上一个世纪之交,确立了交流输电系统进一步发展和应用的基本取向,从而带来了本世纪交流高电压输电和电力系统的大发展。从本世纪初到60年代末,最高交流输电电压从12.44千伏和60千伏提高到735千伏和76
tyn
- 太阳能做为世界上最清洁的能源,目前有着广泛的用途。但由于质量、价格的限制,太阳能发电在国内的利用还处在低水平上,与中国的经济发展形成很大的反差。随着人民生产水平的提高,解决偏远地区居民用电问题也摆上了政府的议事日程;同时各类无人值守地点也适合太阳能发电系统,如各类微波传送站、无线发射点、水文监测点等,随着国家对环保要求不断高,对太阳能发电的需求越来越多,因此迫切需要一些价廉物美的太阳能发电系统。-Solar energy as the world' s clean energy, curr
ARM_uC_OS_qixiang_shujucaiji
- 本文提出并研究设计了一个基于ARM和uC/OS一11的自动气象站实时多任务数据采集系统,完成了系统的硬件和软件设计。该系统以犯位高性能ARM微处理器S3C44BOX为硬件核心,扩展了10/100M以太网接口、USB2.0接口、RS232串口以及DE接口等通用接口 以嵌入式实时操系统uC/OS-II为软件平台,在ARMSDT.251环境下进行系统软件的开发。该系统充分利用了ARM微处理器高性能、低功耗、低成本的优势,发挥了uC/OS-II可移植性好、开发成本低的点,为自动气象站的数据采集提供了一个
pso1
- the source code for particle swarm optimization algorithm is given in this file. the source code is for economic dispatch problem which is a power system problem.
threephase
- 三相交流电在国民经济中应用广泛,电路的畅通对工业生产极为重要。由于某种原因造成某相交流电断电,会造成重大的经济损失,因而对线路的检测是十分必要的。单片机三相交流电断相远程报警器,以8051单片机为核心,对三相线路进行不间断检测。当某相线路断电时,不仅可进行近程声光报警,还可进行远程声报警。-Three-phase alternating current widely used in the national economy, the circuit flow of traffic on the
jgKGDY
- 一个经济实用的开关电源电路,在实际产品中应用广泛,望对大家有借鉴作用!-An economic and practical switching power supply circuit, widely used in the actual product, hope all of you have reference!
Series-reactor-analysis-used-paradox
- 结合电容器装置工程实例阐述在并联电容器装置用串联电抗器的电抗率选择问题上的经验与教训,提出区域电网中电容器电抗器组群体参数优选的目标函数和约束条件,例举两种不同参数配置方案的技术经济比较等,以供工程设计借鉴。 -Combination of the capacitor device engineering examples described in the parallel capacitor devices in series reactor reactance rate selection
Valve-cam-design
- The valve train is one of the most important mechanisms in a internal combustion engine, whether the performances are good or bad, that affecting the power performance, economic performance, emissions performance of the engine, as well as affecting t
ED_Lagrange
- Economic Dispatch for power generating systems with Lagrange method
Presentation---G-Anderson
- ECONOMIC DISPATCH OF ACTIVE POWER USING A HYDRO THERMAL TEST NETWORK
distribution-guidelines
- 为把中国南方网公司建设成为营型、服务型、一体化、现代化、国内领先、国际著名的企业,实现南方电网统一开放、结构合理、技术先进、安全可靠的发展目标,规范南方电网城市配电网的规划、设计、建设及改造工作,提高与电网设备装备水平,保证配电网安全、稳定、可靠、经济运行,满足南方五省(区)城市用电需要,特制定本导则。-WASHINGTON China to build the company into the camp, service-oriented, integrated, modernized, le
2004121314212347
- 在城市配电网中,环网供电的经济效益、可靠性高,而作为环网供电的主要设备———环网柜现已广泛使用,为此,分析环网柜的性质、种类、应用情况及存在问题-Distribution network in the city, the economic benefits of the ring network power, high reliability, and as a ring network power supply main equipment--- RMU is now widely used
Unidade_5_Despacho_Economico2
- Document describing the Economic Dispatch, a matter of Power Systems Analysis.
Distributed-energy-system-_-DING
- 在一个小型分布式发电系统的基础上, 建立分布式供能系统的调度策略和经济调度模型, 通过考虑各种电源的约束条件, 用改进的遗传算法进行求解, 使得分布式微网系统能够实现热电联供, 满足用户的需求. 算例系 统验证了模型与算法的可行性。-On the basis of a small distributed generation systems established on the scheduling policy and economic dispatch model of distribu
Computer-Relay-Protection-System
- 随着电力系统的发展,电网的容量,电压等级不断提高,大型高压变压器作为电能传送的枢纽,它的安全运行与否,直接关系到电力系统能否连续稳定地工作。特别是由于大型变压器结构复杂、造价昂贵,一旦发生严重故障而损坏,将给维修工作带来很大困难,造成经济上的重大损失。微机继电保护系统作为一种能反映电力系统故障和不正常状态、及时动作于断路器跳闸或发出信号的自动化设备能自动、迅速和有选择地切除故障组件,使系统免遭损坏。因此对于研制开发性能优良的变压器微机保护装置具有十分重要的现实意义。 本论文在现有的变压器主、
many-distributed-energy-micro-grid
- 含多种分布式电源的微电网经济调度研究_周晓燕,含多种分布式电源的微网建模及并网控制仿真_毛盛龙,含可再生能源的热电联供型微网经济运行优化_王锐-Scheduling microgrid economy with a variety of distributed power _ Zhou Xiaoyan, containing a variety of micro-distributed power network modeling and simulation _ Maosheng Long a
A stochastic, contingency-based security-constrained optimal power flow for the procurement of energy and distributed re
- It is widely agreed that optimal procurement of reserves,with explicit consideration of systemcontingencies, can improve reliability and economic efficiency in power systems.With increasing penetration of uncertain generation resources, this optimal
thesis-2
- The face of electricity generation, transmission and distribution is changing due to economic, technology and environmental incentives. Recently, interactive and intelligent electricity grid structures which consist of interconnected small/medium siz
132-Study-of-optimal-total-cost-of-active-power-i
- In this work we present the ED (economic dispatch) problem in mixed AC-DC (alternative currant- direct current) systems based on the calculation of PF (power flow) and its equivalent losses matrix. The procedure starts by the calculation of the PF fo
06658957
- Fast Dynamic Economic Power Dispatch Problems Solution Via Optimality Condition Decomposition