2008t／h包炉协调EDTA化学清洗及废液回收

本文介绍了协调ＥＤＴＡ化学清洗在２００８ｔ／ｈ大容量锅炉上的应用，文章还从锅炉垢样成分分析及ＥＤＴＡ用于此类大容量锅炉化学清洗的优越性，详细介绍了平圩电厂采用ＥＤＴＡ进行锅炉化学清洗，并建立永久性清洗回收系统的原因以及ＥＤＴＡ化学清洗的原理、清洗及回收系统的特点等。     

大型锅炉EDTA化学清洗实践

大型锅炉ＥＤＴＡ化学清洗实践镇海发电厂何兆达，陈云良，朱新强镇海发电厂自１９９２年以来，在ＳＧ—４００／１４０—Ｙ４１１和ＤＧ６７０／１４０—８锅炉上多次采用ＥＤＴＡ清洗获得成功，此后在北仑港发电厂１、２号炉上也取得成功，为大型锅炉推行ＥＤＴＡ清洗积...     

EDTA法清洗锅炉的几点体会

ＥＤＴＡ法清洗锅炉，以其系统，工艺简单，清洗时间短，检修工作量小等优点，在电站锅炉化学清洗中得到愈来愈广泛的应用，作者根据北京第一热电三和１５台次锅炉ＥＤＴＡ法化学清洗中遇到的一些问题，结合在洗炉实践中的体会，就ＥＤＴＡ法洗炉中可能出现的一些问题进行了分析探讨，提出了一些看法。     

电站锅炉的EDTA清洗

系统阐述了ＥＤＴＡ清洗工艺和控制参数,介绍了２台锅炉清洗过程,重点分析和讨论ＥＤＴＡ清洗应注意的事项。     

EDTA化学清洗综述

ＥＤＴＡ化学清洗综述武汉水利电力大学卓山（４３００７２）ＥＤＴＡ洗炉方法早在６０年代末、７０年初，在美国、日本、前苏联等国家就已有资料介绍。我国在７０年代也开始进行ＥＤＴＡＩ业洗炉的尝试，山东电力试验研究所在莱芜电厂曾用ＥＤＴＡ铰盐法正式进行锅炉的化...     

EDTA化学清洗在600MW机组上应用

介绍了ＥＤＴＡ化学清洗在平圩发电厂１号锅炉（２００８ｔ／ｈ）上的具体实施过程。对清洗效果作了评价。认为ＥＤＴＡ清洗较其它清洗具有工艺简单、放便、安全且无废液处理等优点。     

锅炉管道的化学清洗

本文以Ｓａｎｍｉｇｕｅｌ电站锅炉为例，详细介绍了ＥＤＴＡ化学清洗的整个过程，包括清洗目的、沉积物分析和清洗工艺，并对清洗效果作出了评价。     

清除铜硅垢的EDTA缓蚀剂研究及应用

本文就乙二胺四乙酸二钠（ＥＤＴＡ），清洗电厂锅炉中难溶的炉垢和产生点蚀问题进行了试验研究。通过常规ＥＤＴＡ清洗工艺和分步清洗工艺的溶垢试验表明，难溶的炉垢不能完全溶解的主要原因是垢中含有极难溶的ｒ－Ｆｅ２Ｏ３为主的铜硅垢所致，同时揭示了ＥＤＴＡ清洗液中含Ｃｌ＾－较高时对碳钢产生点蚀。通过大量试验和研究，研制出一种清除ｒ－Ｆｅ２Ｏ３的铜硅垢的ＥＤＴＡ高效缓蚀剂。在清洗液中添加这种缓蚀剂，难溶炉垢全部     

安顺电厂1号机组协调EDTA化学清洗

我省电力系统锅炉清洗一直沿用盐酸结合柠檬酸清洗工艺,由于这种工艺存在着临时系统复杂,工期较长,废液难以处理彻底等弊端,加之目送２对要求比较高,因此,ＥＤＴＡ清洗工艺取得了较好的效果。本文对此次安电１号炉ＥＤＴＡ清洗过程综述如下。     

EDTA清洗废液的回收

文章系统阐述ＥＤＴＡ清洗废液的回收方法和工艺控制；介绍ＥＤＴＡ废液的回收系统，重点对影响ＥＤＴＡ回收率的因素进行分析，指出了提高ＥＤＴＡ回收率的有效途径。     

青海省电力公司输变电设备全寿命统计分析

文章依据青海省电力公司输变电设施可靠性统计数据,选取使用数量大、程度高的110kV及以上输电线路、变压器、断路器、隔离开关和继电保护等五类设备进行统计,阐述了公司主要输变电设备基本情况及主要特点,对公司主要输变电设备使用寿命与国家电网公司、国际成熟电网水平进行了比较,分析了影响输变电设备运行寿命的主要原因。     

锅炉停用保护剂对水汽氢电导率的影响研究

电站锅炉停用保护剂多采用十八胺和表面活性胺。对这2种停用保护剂进行了应用效果对比研究,即对湿冷机组、空冷机组采用十八胺或表面活性胺、有无凝结水精处理系统等6台机组停机和启动过程中给水、主蒸汽和凝结水的氢电导率变化情况进行分析。研究结果表明：在停机过程和启动过程,2种保护剂均会在水汽系统中发生部分分解,导致水汽系统的氢电导率显著升高;表面活性胺和十八胺比较,使用前者,机组启停机过程可保持凝结水精处理系统正常投运,因而可使水汽质量迅速达标,对机组安全运行有利,因此推荐采用表面活性胺作为锅炉停用保护剂。     

State policies for collaborative local renewable integration

New technologies are transforming the US energy sector. Unprecedented opportunities lie ahead for local renewable energy development. Proper system and resource integration is therefore an economic imperative. Technical and economic integration will require policy alignment and collaboration among cities, counties, energy utilities (both gas and electric), and state government. There is also a potentially invaluable role for higher education in support of local planning and integration. State policy interventions in support of collaborative local renewable integration will be a necessary supplement to existing market and regulatory structures.States can affirm fundamental property rights that empower communities and citizens to actively support local climate action and adaptation. State policy can drive the evolution of existing market and regulatory structures to account for local differences and provide increased flexibility for local jurisdictions to address their diverse local resource opportunities and usage profiles.In parallel, states can encourage cities and counties to increase their capacity to take on vital new roles. State energy regulators will need to balance public interest in the economic health of the companies against they regulate against the opportunity to secure important benefits of local clean energy resource development and integration. They will need to create new processes for harmonizing and cross-leveraging progress toward diverse local goals with progress toward over-arching state goals.The key enabling factor will be a culture of collaboration between energy service providers and local governments. Collaborative local renewable integration can be empowered by state action that creates new points of coordination, integration and assistance.Through policy interventions, states can reduce or eliminate barriers to collaborative local renewable integration while capturing opportunities to bring together local government and energy utility capacities and data, plus capacities of universities, non-profit and utility training programs.     

基于故障录波与保护信息融合的变电站故障分析系统开发

设计了一套基于故障录波与保护信息融合的变电站实时和离线故障分析系统,开发了相应的软件.在COMTRADE规约的基础上解决了故障录波信息和保护信息格式转换的问题,利用模拟低通滤波和数字滤波技术、傅里叶变换和小波变换等筛选压缩方法对录波信息进行预处理,实现了故障录波与保护信息的融合.综合2种不同的录波数据进行故障计算,最后...     

Energy worldviews: Engaging consumers by aligning rate design strategies with personal choice

Rate design serves objectives of cost recovery, market animation, and customer incentives. Yet in the quest to find the ‘perfect equitable rate,’ many rate designers and pilots overlook the diversity of consumer attitudes. AMI enables not only interval monitoring and controls, it allows alternative pricing plans, payment options, device adoption, and generation mixes reflecting individual priorities. Connecting consumer attitudes with a portfolio approach helps regulators and utilities achieve specific goals while improving satisfaction and engagement.     

MPLS的核心-LDP

标签分配协议是MPLS技术的控制协议，也是MPLS的核心，它相当于传统信令中的信令协议，负责转发等价类的分类、标签的分配、分配结果的传输及LSP的建立和维护等一系列操作。分6个部分描述与LDP有关的内容，其中包括：与标签、标签分配协议等相关的概念；LDP规范中规定的LDP PDU、消息、TLV等的结构；LDP的功能和工作的4个阶段；标签的分配和管理技术；LDP与BGP和LIB的关系；对LDP的扩展-CR-LDP等内容。     

Renewable Energy Devices and Systems – State-of-the-Art Technology,Research and Development,Challenges and Future Trends

Abstract

In this paper, essential statistics demonstrating the increasing role of renewable energy generation are firstly discussed. A state of the art review section covers fundamentals of wind turbines and PV systems. Included are schematic diagrams illustrating the main components and system topologies and the fundamental and increasing role of power electronics as an enabler for renewable energy integration, and for the future power system and smart grid. Recent examples of research and development, including new devices and system installations for utility power plants, as well for as residential and commercial applications are provided. Fuel cells, solar thermal, wave generators, and energy storage systems are also briefly presented and illustrated. Challenges and future trends for 2025 are summarized in a table for on-shore and off-shore wind energy, solar power, including photovoltaic and concentering, wave energy, fuel cells, and storage with batteries and hydrogen, respectively. Recommended further readings on topics of electric power engineering for renewable energy are included in a final section. This paper also represents an editorial introduction for two special issues of the Electric Power Component and Systems Journal, 43(8–10) and 43(12), respectively.     

“十三五”输电网发展重点研究

十三五”是中国全面建成小康社会的关键时期,是实现能源电力发展方式转变的重要战略机遇期。根据中国“西电东送、北电南送”电力流特点,未来国家电网发展将呈现东北、西北、西南为送端,华北、华东、华中为受端的基本格局。在总结分析“十二五”国家电网发展成就的基础上,系统阐述了电网发展面临的形势和任务,提出“十三五”期间国家电网发展重点,要加快建设以特高压电网为骨干网架、各级电网协调发展的坚强智能电网,促进大型煤电、水电、核电、可再生能源基地集约开发,实施大规模、远距离输电,实现能源资源在全国范围优化配置,推动能源结构调整和布局优化,促进资源节约和生态环境保护,保障能源可持续安全供应。     

共轴折叠双旋翼无人机姿态测量实验与分析

针对小型共轴折叠双旋翼飞行器结构特点、飞行原理进行分析,研究无人机运动学和动力学特性并建立数学模型,建立了无人机飞行器半实物飞行的动力性能和姿态角测试平台。该平台对飞行器机械振动、姿态角和噪声等性能分析。通过测试实验分析无人机不同旋翼转速产生的机械振动和噪声等特性,以及对陀螺仪和加速度计等MEMS传感器姿态解算结果的影响。测试实验表明：随着转速的增加振动幅度有所增加,该振动特性对噪声模型的建立和评估对无人机鲁棒性和抗干扰性提供新思路及有益借鉴。     

小电流接地系统单相接地故障的处理

论述了小电流接地系统发生单相接地故障的原因、产生危害和对各种故障现象的区分判断,以及变电站实行无人值守后查找处理过程中的注意事项和几种特殊情况,使值班员能够及时准确地判断、查找和处理故障,确保系统安全稳定运行。