Commercial energy storage has moved from the margins to the mainstream as it fosters flexibility in our smarter, increasingly integrated energy systems. The energy density, availability, and relatively clean fossil profile of natural gas ensure its critical role as a fuel for heating and electricity generation. As a transportation fuel, natural gas continues to increase its market penetration; much of this has been enabled by emerging developments in storage technology.
标签： Hydrogen Methane Storage Energy and for
上传时间： 2020-06-07
上传用户：shancjb
n present power system, the engineers face variety of challenges in planning, construction and operation. In some of the problems, the engineers need to use managerial talents. In system design or upgrading the entire system into automatic control instead of slow response of human operator, the engineers need to exercise more technical knowledge and experience. It is principally the engi- neer’s ability to achieve the success in all respect and provide the reliable and uninterrupted service to the customers. This chapter covers some important areas of the traditional power system that helps engineers to overcome the challenges. It emphasizes the characteristics of the various components of a power system such as generation, transmission, distribution, protection and SCADA system. During normal operating conditions and disturbances, the acquired knowledge will pro- vide the engineers the ability to analyse the performance of the complex system and execute future improvement
上传时间： 2020-06-07
上传用户：shancjb
Modern power systems involve large amount of investment. An electric power system comprises of generation, transmission, and distribution of electric energy. Growth of power systems has led to very complex networks extended across large areas. In such situations, the proper functioning of a modern power system is heavily dependent upon the healthy operation of the transmission lines within it. Transmission lines are used to transmit a huge amount of power over a long distance. But as these lines are located in the open atmosphere, they are highly affected by different types of abnormal conditions or faults.
标签： Transmission Protection Line
上传时间： 2020-06-07
上传用户：shancjb
The next avatar of the Internet will revolutionize our world. In time, it will provide us a universal remote control, enabling us to monitor and control physical objects located anywhere on the planet, using a smart phone. It will make the universe around us programmable, allowing us to script the behav- ior of physical objects with electronic commands. This book is about such an emerging new version of the Internet.
标签： Infrastructure Construction Design RFID and an of
上传时间： 2020-06-08
上传用户：shancjb
Building a robot and enabling it to sense its environment is a wonderful way to take your Arduino knowledge to the next level. In writing this book, I have brought together my love for invention and my experience with electronics, robotics and microcontrollers. I hope you have as much pleasure building and enhancing your robot as I did developing the techniques contained in this book.
标签： Arduino-Controlled Robot Make an
上传时间： 2020-06-09
上传用户：shancjb
This edition of Digital Image Processing is a major revision of the book. As in the 1977 and 1987 editions by Gonzalez and Wintz, and the 1992, 2002, and 2008 editions by Gonzalez and Woods, this sixth-generation edition was prepared with students and instructors in mind. The principal objectives of the book continue to be to provide an introduction to basic concepts and methodologies applicable to digital image processing, and to develop a foundation that can be used as the basis for further study and research in this field. To achieve these objectives, we focused again on material that we believe is fundamental and whose scope of application is not limited to the solution of specialized problems. The mathematical complexity of the book remains at a level well within the grasp of college seniors and first-year graduate students who have introductory preparation in mathematical analysis, vectors, matrices, probability, statistics, linear systems, and computer programming. The book website provides tutorials to support readers needing a review of this background material
标签： Processing Digital Image
上传时间： 2021-02-20
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欧母龙PLC例程PLC控制器源码255个合集:1600T俄罗斯压力机.rar200吨压机程序 omron 的机子C系列的.rar3MK136旧磨床现程序.rar3电机延时控制启停.rar5V编码器信号如何接入CP1H高数计数案例.rar6路抢答器源码.rar902002 OMRON.rarASCII Generic Protocol Macro Object Code.zipASCII Generic Protocol Macro.zipC3电枢异物吸引.rarCalendar Calculation.zipcarbon.rarCompact Flash Memory Write.zipCounter Multiplex.zipcp1h 高速计数触发中断注意点.rarcp1h-x40用在非标饮料线上的程序,有注解.rarCP1H与爱默生温控模块的通讯程序.rarCP1L and CP1H EasyModbus FB.zipCPM1A编写的赞扬15T立式注塑机.rarCPM2A Interupt High Speed Counting Sample.zipCPM2A自身时钟六个时间段触发程序.rarCQM1 Host Link Master.zipCQM1H 21的例子程序，有温度压力等PID控制。.rarCQMaster.swp.zipCS CJ CP NSJ password set.zipCS1 C Mode Hostlink.zipCS1-CJ1 Floating Point to Fixed Point Conversion for HMI.zipcub.rarCX-Programmer Ver.5 Introduction Guide R120-E1-01..zipCX-Programmer Ver.5 Introduction to Function Blocks Guide R121-E1-01.zipC_Mode_Hostlink.zipDeviceNet Explicit Message Example.zipdieban.rarEasy to use Modbus RTU Master for CP1L CP1H CJ1 CJ2 CS1.zipExample of Using Daylight Saving FB's.zipExample Scale Meter Protocol.zipFB Calculate Day Of Week.zipFB Day light savings function block.zipFB Extract Time Date into SecMin Hr Day Mth Yr.zipFB Scale with parameters.zipGKF1250离心机CXP.rargkf1250离心机cxpgkf离心机omron.rarJH21-200程序.rarLED液压机.rarlogging+ filewrite.ziplpr-des.rarModbus Protocol Macro Object Code.zipModbus Protocol Macro.zipModbus RTU Sample Code CJ1-SCB.rarModbus TCP Client using FB's.zipOmron CS1 Sequencer.zipOMRON E6CP绝对值编码器使用实例。编码器为8位格雷码输出.rarOmron Modbus Slave Ladder.zipOmron Plc 变频一带三例程.rarOMRON PLC编程示范.raromron--MOV傳送指令.raromron-cs1g-h-cpu42日本机的程序.rarOmron_CJ2_to_AB_EIP_Tag_Datalink_Example.rarOMRON接驳台.rarOMRON控制2伺服.rarOMRON温度，压力模拟量输入程序.rarOMRON照明设备程序.raromron的PLC案例程序.rarOMRON程序举例.rarOMRON程序举例2.rarOMRON纸病分析系统-PLC程序(CJ1G).zipomron脉冲输出到驱动器的程序.rarPCB 沉铜线程序.rarPID温度控制的PLC程序设计实例.rarPinstamp.zipPLC Clock adjustment with screen.zipPLC锰钢程序cpm2a.zipPolls and Writes setpoints to E5CK Process Controller - E5CK.swp.zipPRO9连拉.rarProcess states sequence logics.zipQuadrature Input for Standard CPM1A DC Inputs.zipRandom Number Generator.zipScaling in CJ1 CS1 PLC's.zipSMS - GSM PLC Communications.zipsony 公司 某机台控制程序.rarStepNext.cpt.zipSTUP Example.zipTemplate for Step-Step Next Sequence.zipToggle Button.zipTracking product on conveyor.zipTXD-RXD Quickstart Programs.zipTXD-RXD Serial Port Handling.zipUseable timer.zipV600-E5CK.zipV700-V720 RFID Protocol Macro.zipVB与OMRON PLC通讯源码.rarWoodwood Controler Example Protocol Program.zipYH32-315油压机程序.rar一个CJ1M的程序.rar一个OMRON程序,带位置控制模块.rar一个生产线上润滑控制的小程序.rar一些简单的cpm1a程序.rar一控三恒压供水程序.rar三层提升机欧姆龙CQM1H程序.rar三菱400吨和200号冲床程序.rar上海产自动模切机飞达部程序.zip上海狮印全自动啤机程序.rar东芝压铸机梯形图.rar两步法吹瓶机.rar乡林剪台.rar买书的随书样例.rar井研磨边机.rar交通灯注释全.rar今机立式注塑机程序.rar伺服电机正反转控制.rar位置控制（旋转编码器与PLC）.rar充磁机程序.rar先启后停 后启先停 事例.rar冲床程序.rar分拣线主机一个CJ1M的分拣线程序下挂CP1H.rar利慧利乐灌装机程序.rar刮水器停止位置检查程序.rar力泰翻胚机程序.rar北人04印刷机程序.rar北人LQD10骑马装订程序.rar半自动吹瓶机的程.rar南京印刷机.zip卡板程式.rar压制机程序（带解释，注释）.rar压力机控制程序.rar原创液压机程序带注释欧姆龙PLC加信捷文本.rar原点搜索程序.rar双翻分拣机.rar双边机.rar反渗透整套PLC控制.rar台湾产染色机欧姆龙PLC带3只IO扩展控制程序.rar台湾大拉无板.rar啤酒厂酒瓶美容机.rar四川绵阳建丰热磨工段.rar在用设备程序.rar垂直涂布.rar外端子设计数值.rar大型热电厂 PLC程序(带注解).rar大摇动超声波清洗机.rar大连75密练注释程序.rar安呼12级.rar富佳扶梯程序.rar对齐度编程！！.rar小车控制程序.rar小车送料”例程.rar广东锻压气压冲床程序（80T）有详细注解.rar广告牌灯箱.rar微电机刷簧自动组装程序.rar微粉砖自动送料带OMRON CQM2A+扩展程序带注释.rar意大利进口皮革压花.rar扎钢机程序.rar打包机.rar拔盖机.rar拨码控制.rar挡砖磨边机（新1）.rar捷豹空压机控制程序.rar接木机.rar控制程序例子.rar推挂.rar攻丝机2（新）.rar料位显示.rar旋转门控制程序1.rar无协议.rar无心磨床(OMRON系统,带机械手有详细注解).rar无线胶装机欧姆龙程序.zip日本人编的程序 抛光研磨.rar日本成型磨床控制程序（附注释）欧姆龙CPM1A.rar板坯定厚.rar样例，有注释.rar模拟量试验.rar欧姆龙CJ1M铬化机程序带注释.rar欧姆龙CP1H例程.rar欧姆龙CPM1A的PLC.rar欧姆龙CPM2AH PLC和欧姆龙NTZ触摸屏编写的超声波清洗机程序..rar欧姆龙CPM2AH Host Link通讯程序(发布源码).rar
上传时间： 2021-10-22
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基于TMS320F2812 光伏并网发电模拟装置PROTEL设计原理图+PCB+软件源码+WORD论文文档,硬件采用2层板设计，PROTEL99SE 设计的工程文件，包括完整的原理图和PCB文件，可以做为你的学习设计参考。 摘要：本文实现了一个基于TMS320F2812 DSP芯片的光伏并网发电模拟装置，采用直流稳压源和滑动变阻器来模拟光伏电池。通过TMS320F2812 DSP芯片ADC模块实时采样模拟电网电压的正弦参考信号、光伏电池输出电压、负载电压电流反馈信号等。经过数据处理后，用PWM模块产生实时的SPWM 波，控制MOSFET逆变全桥输出正弦波。本文用PI控制算法实现了输出信号对给定模拟电网电压的正弦参考信号的频率和相位跟踪，用恒定电压法实现了光伏电池最大功率点跟踪（MPPT），从而达到模拟并网的效果。另外本装置还实现了光伏电池输出欠压、负载过流保护功能以及光伏电池输出欠压、过流保护自恢复功能、声光报警功能、孤岛效应的检测、保护与自恢复功能。系统测试结果表明本设计完全满定设计要求。关键词：光伏并网，MPPT，DSP Photovoltaic Grid-connected generation simulator Zhangyuxin，Tantiancheng，Xiewuyang(College of Electrical Engineering, Chongqing University)Abstract: This paper presents a photovoltaic grid-connected generation simulator which is based on TMS320F2812 DSP, with a DC voltage source and a variable resistor to simulate the characteristic of photovoltaic cells. We use the internal AD converter to real-time sampling the referenced grid voltage signal, outputting voltage of photovoltaic, feedback outputting voltage and current signal. The PWM module generates SVPWM according to the calculation of the real-time sampling data, to control the full MOSFET inverter bridge output sine wave. We realized that the output voltage of the simulator can track the frequency and phase of the referenced grid voltage with PI regulation, and the maximum photovoltaic power tracking with constant voltage regulation, thereby achieved the purpose of grid-connected simulation. Additionally, this device has the over-voltage and over-current protection, audible and visual alarm, islanding detecting and protection, and it can recover automatically. The testing shows that our design is feasible.Keywords: Photovoltaic Grid-connected，MPPT，DSP 目录引言 11. 方案论证 11.1. 总体介绍 11.2. 光伏电池模拟装置 11.3. DC-AC逆变桥 11.4. MOSFET驱动电路方案 21.5. 逆变电路的变频控制方案 22. 理论分析与计算 22.1. SPWM产生 22.1.1. 规则采样法 22.1.2. SPWM 脉冲的计算公式 32.1.3. SPWM 脉冲计算公式中的参数计算 32.1.4. TMS320F2812 DSP控制器的事件管理单元 42.1.5. 软件设计方法 62.2. MPPT的控制方法与参数计算 72.3. 同频、同相的控制方法和参数计算 8
标签： tms320f2812 光伏 并网发电 模拟 protel pcb
上传时间： 2021-11-02
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5G移动通信网络关键技术综述.pdf陈 婧，韩远兵，徐 川 (重庆邮电大学未来网络研究中心 重庆 400065) 摘 要: 为适应未来海量移动数据的爆炸式增长，加快新业务新应用的开发，第五代移动通信( fifth generation mo- bile communication network，5G) 网络应运而生。目前，国内外已经逐渐明确了 5G 的愿景和需求，如何将现有技术和 多种潜在的新技术进行融合以实现 5G 网络成为下一步的研究与发展重点。面向未来 5G 的技术发展，介绍 5G 的 概念、应用场景以及终端用户对 5G 的相关需求; 然后，重点阐述 5G 在无线网络方面具有发展前景的 10 大关键技 术，包括: 超密集异构网络、自组织网络、D2D( device-to-device) 通信、M2M( machine-to-machine) 通信、软件定义无线 网络、
上传时间： 2022-02-25
上传用户：zhaiyawei
随着光伏发电系统快速发展,以及电动汽车充电桩的普及,传统的剩余电流保护器无法满足实际需求。介绍了一款B型剩余电流保护器,采用磁调制剩余电流互感器和零序电流互感器采集剩余电流。根据GB/T 22794—2017标准要求,可识别1 kHz及以下的正弦交流、带和不带直流分量的脉动直流、平滑直流等剩余电流信号。经信号调理电路将电压信号送到单片机进行采集和判断。通过试验测试,该样机在测试精度和速度上均符合国家标准的相关要求。The rapid development of photovoltaic power generation systems and the popularity of electric vehicle charging piles make the traditional residual current protective devices unable to meet the actual demand.This paper proposed a type B residual current protective device,which uses the magnetically modulated residual current transformer and the zero sequence current transformer to acquire the residual current.According to the requirements of GB/T 22794—2017,the type B residual current protective device can detect sinusoidal AC residual current of 1kHz and below 1kHz,pulsating DC residual current with and without DC component,smooth DC residual current and so on.The signal processing circuit sends the voltage signal to the MCU for acquisition and judgment.Through experimental tests,the device meets the relevant requirements of national standards in terms of test accuracy and speed.
标签： 电流保护器
上传时间： 2022-03-27
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