光伏发电是未来新能源发电重要方向之一，而光伏变流器是光伏发电系统的核心。介绍一种基于微网理念的光伏变流器设计。以该变流器为核心的光伏发电系统可以看做一个小型的微网系统。该系统能根据外部电网情况，工作于并网模式和离网模式。介绍了该系统的各个组成部件的设计以及变流器主电路部分器件的选型。最后，由实验样机进行测试。试验结果验证了电路拓扑结构及控制方案的可行性，也说明了系统参数设计方法的正确性。 Abstract: Solar Photovoltaic generation is an important direction of new energy power generation in the future，while photovoltaic converter is the core of photovoltaic generation system. This paper deals with a study on photovoltaic inverter based on the concept of microgrid. This paper describes a system whose core component is the photovoltaic inverter，can work on grid-connected mode or run independently according to the external situation. The paper simply describes the main components of the system. At last，the prototype was produced and tested. Test result has proved feasibility of circuit topology structure and controlling scheme and shown correctness of system parameters.Key words: PV inverter； microgrid； off-grid； storage battery
上传时间： 2014-12-24
上传用户：Shaikh
Sensing and/or controlling current flow is a fundamental requirement in many electronics systems, and the tech-niques to do so are as diverse as the applications them-selves. This Application Note compiles solutions to cur-rent sensing problems and organizes the solutions by general application type. These circuits have been culled from a variety of Linear Technology documents
标签： 电流检测电路
上传时间： 2013-10-22
上传用户：moshushi0009
功能、性能、特点 采用电磁场优化分布的设计原理，使局部放电和局部过热最小。 小型化、高功能的真空灭弧室利用纵向旋转磁场灭弧原理， 有效地保证了截流值小于3A， 使开断性能极为稳定。 弹簧储能机构采用模块化设计，一件多用，使机构主件分布合理，结构简单，性能稳定。 绝缘性能优越可靠，顺利通过了凝露试验，适合在最恶劣的环境条件下运行，并具有比IEC和GB标准要求更高的爬电距离和电气间隙。 接地方式可靠，确保了断路器从工作位置到试验位置接地的连续性。
上传时间： 2013-12-28
上传用户：ommshaggar
When a system designer specifies a nonisolated dc/dc powermodule, considering the needed input voltage range isequally as important as considering the required performanceattributes and features. Generally, nonisolated moduleshave either a narrow or a wide input voltage range. Narrowinputmodules typically have a nominal input voltage of3.3, 5, or 12 V. For systems that operate from a tightlyregulated input bus—such as those that do not use batterybackup—a narrow-input module is often adequate sincethe input remains fairly stable.Offering greater flexibility, wide-input modules operatewithin a range of 7 to 36 V, which includes the popular12- or 24-V industrial bus. This enables a single module tobe used for generating multiple voltages. These modulesare ideal for industrial controls, HVAC systems, vehicles,medical instrumentation, and other applications that usea loosely regulated distribution bus. In addition, systemspowered by a rectifier/battery charger with lead-acidbattery backup almost always require wide-input modules.System designers who choose power supplies may wantto take a close look at the latest generation of wide-inputdc/dc modules.
标签： Wide-input modules offer dc
上传时间： 2014-12-24
上传用户：dragonhaixm
The latest generation of Texas Instruments (TI) boardmountedpower modules utilizes a pin interconnect technologythat improves surface-mount manufacturability.These modules are produced as a double-sided surfacemount(DSSMT) subassembly, yielding a case-less constructionwith subcomponents located on both sides of theprinted circuit board (PCB). Products produced in theDSSMT outline use the latest high-efficiency topologiesand magnetic-component packaging. This providescustomers with a high-efficiency, ready-to-use switchingpower module in a compact, space-saving package. Bothnonisolated point-of-load (POL) switching regulators andthe isolated dc/dc converter modules are being producedin the DSSMT outline.TI’s plug-in power product line offers power modules inboth through-hole and surface-mount packages. The surfacemountmodules produced in the DSSMT outline use asolid copper interconnect with an integral solder ball fortheir
上传时间： 2013-10-10
上传用户：1184599859
International reference list 02/2004International referenceJ.JaatinenCompany CountryBerlin GermanyDeutsche Flugsicherung GermanyFrankfurt GermanyGuangzhou ChinaHamburg GermanyHelsinki-Vantaa FinlandKuala Lumpur - Sepang MalaysiaZürich Switzerland
标签： Quality Energy Power Manag
上传时间： 2013-10-30
上传用户：1184599859
Active Power提供各种系统可见性和管理工具，使您能更好了解有关电源的各种事件并最终提高电源系统的可靠性。从将基本数据集成 Active Power独有的CleanSource View(CSView)监控软件，到全托管式远程监控服务 – 我们都可为您提供相应管理关键电源基础架构所需的系统可见性和服务。
标签： 关键电源
上传时间： 2013-11-24
上传用户：685
ØCPV is the abbreviation of concentration PV. Ø It utilizes optics to concentrate the sunlight to the CPV cell to generate power. Ø The purpose of CPV is to reduce the cell’s area and the cost of PV module.
上传时间： 2013-10-29
上传用户：开怀常笑
当今电子系统如高端处理器及记忆体，对电源的需求是趋向更低电压、更高电流的应用。同时、对负载的反应速度也要提高。因此功率系统工程师要面对的挑战，是要设计出符合系统要求的细小、价廉但高效率的电源系统。而这些要求都不是传统功率架构能够完全满足的。Vicor提出的分比功率架构(Factorized Power Architecture FPA)以及一系列的整合功率元件，可提供革命性的功率转换方案，应付以上提及的各项挑战。这些功率元件称为V•I晶片。
上传时间： 2013-11-15
上传用户：yan2267246
Demonstration circuit 1562A is an engineering toolto design and evaluate the LTC699X-X family ofTimerBlox circuits. The center section of the boardcontains a pre-configured TimerBlox function.DC1562A comes in twelve timing function variationsas outlined in Table 1.Surrounding the center board is a ”playground”prototyping area. The prototyping area has padsfor Dip-8, S8, MS8, or S6 packages with breadboarding connections to each pin and two convenientpower buses and ground bus surrounding theentire area. This area is for conditioning signals tocontrol the timer function and for adding loads controlled in time.
上传时间： 2013-10-18
上传用户：如果你也听说
