基于风光互补发电技术的移动通信基站电源解决方案

基于风光互补发电技术的电源解决方案应用于移动通信基站,可以有效解决海岛等边远地区市电引入困难的问题,同时降低维护成本,实现节能减排的目标.通过对某海岛通信基站环境资源进行分析,提出可靠、实用的通信基站的风光互补发电技术方案.     

风光互补基站电源监控系统的开发与应用

随着通信行业的逐步发展,通信基站的数量也随之不断的增加。为使通信基站能够在较为艰苦的环境之中具有良好的运行状态,需要积极的对风光互补基站电源监控系统进行探索与开发出,并逐步挖掘其发展途径。本文主要以风光互补基站中的电源监控系统的总体结构为着手点,逐步对基站电源监控系统中的软件开发和硬件开发进行详细分析,进而对基站电源监控系统的电压与温度监控、电压参数设置以的功能进行陈述。以期为关注风光互补基站电源监控系统的专业人士,给予一定的参考与借鉴。     

风光能源技术在通信基站的应用

风光发电系统没有燃料问题,也不会产生辐射或空气污染,是低碳经济的典型代表;小型风光发电系统适合边远地区/无人值守通信基站的供电;由于风光能源具有一定的波动性;而通信基站的安全供电相对于普通居民用电要求高很多;在现有技术条件下,如何将风光能源进行有效存储并供设备使用,保证通信基站的稳定供电,同时,在常规能源条件下,如何保证蓄电池的使用寿命,是本文讨论的重点。     

风光互补发电在通信基站节能中的应用

节能减排、清洁能源是实现可持续发展的战略性举措。文中从通信行业现行供电系统的实际及新能源应用的趋势出发,介绍了风光互补供电系统的设计、部件结构和在通信基站中的应用,系统阐述了采用新能源对通信电源发展的重大意义,有助于新能源的推广应用和实现国家节能减排目标。     

郊区、农村基站及远端模块通信电源设计、安装、维护应注意的问题

本根据郊区、农村基站及远端模块通信电源交流接入存在的问题和农村、郊区农电供电的实际情况进行了分析,提出了在郊区、农村基站及远端模块通信电源设计、安装、维护方面应注意的问题和采取的措施。     

移动基站电源监控与电源维护实例

移动基站设备正常运行需要能源的提供,当市电无法供电时,需要用油机发电,电源监控系统可以全面改善基站电源运行维护质量.在维护的过程中,要注意通信电源直流低压退服的维修,掌握通信电源模块维修技术,注重基站市电环境因素,以确保移动基站设备的正常运行.     

上海致远:多方合作挖掘新能源供电基站市场潜力

截至2011年,上海致远绿色能源有限公司(以下简称上海致远)连续三年中标中国移动风光互补发电系统集中采购,共完成几千个新能源通信基站的建设,并不断加强与中国电信、中国联通展开新能源通信基站建设方面的合作,同时和中兴通讯、艾默生等合作开发国际市场的新能源基站项目的建设。对于当前新能源供电基站市场发展的挑战和上海致远的战略,《通信世界周刊》专访了上海致远副总经理谭明铭。行业标准和监管不完善     

风光供电系统在西南某地推广的可行性分析

西南地区很多地处山区的基站市电条件差,动力系统运行和维护成本高。但此地区风光资源丰富,可以考虑采用新能源供电系统。因此,某通信运营商在此地区选取若干基站,安装了基站专用风光供电系统进行试点。本文将从节能数据、成本、价值等方面出发,分析风光互补供电新系统在此地区基站应用的可行性。     

风光互补供电方式在通信行业特殊场景中的应用

随着手机普及程度的不断加深,手机用户正以指数规模增长,这对通信行业的技术支持有了更高的要求.全球范围内的通信企业正在逐渐扩展自身的网络覆盖面积,在农村及边远山区由于通信基站供电问题未能有效解决,因此该地区的通信发展受到限制,为了顺利解决该种状况并实现对国内通信水平的提高,就需要为移动基站设备配备新能源的发电系统.本文中对风光互补供电系统在通信行业特殊场景中的应用进行分析,阐述了风光互补系统的应用优点,根据新能源发电系统的使用特点针对性的提出风光互补供电系统在通信行业应用的技术要求.配备新能源的移动基站不仅可以解决本设备的工作及日常用电,还可以有效降低企业的前期投入成本,推进国家清洁能源及节能减排战略性举措的进一步实施.     

太阳能光伏通信电源的研究和设计

社会经济与科学技术的发展,对无线通信覆盖区域提出了更高要求。当前,电信事业获得快速发展,通信网络的规模不断扩大,然而在一些偏远农村或山区,其基站电力主要是由小水电站支持,甚至有些地区没有电力供应。进行太阳能光伏通信电源的研究与设计,在解决通信系统供电问题中发挥着重大作用。在介绍通信基站光伏发电系统组成及工作原理的基础上,对通信基站光伏发电系统容量设计、光伏发电系统太阳电池组方位角及倾角、发电系统硬件等设计进行研究。     

GEMNET: a generalized, shuffle-exchange-based, regular, scalable,modular, multihop, WDM lightwave network

GEMNET is a generalization of shuffle-exchange networks and it can represent a family of network structures (including ShuffleNet and de Bruijn graph) for an arbitrary number of nodes. GEMNET employs a regular interconnection graph with highly desirable properties such as small nodal degree, simple routing, small diameter, and growth capability (viz. scalability). GEMNET can serve as a logical (virtual), packet-switched, multihop topology which can be employed for constructing the next generation of lightwave networks using wavelength-division multiplexing (WDM). Various properties of GEMNET are studied     

Thermodynamics of copper matte converting: Part III. Steady-state volatilization of Au,Ag, Pb,Zn, Ni,Se, Te,Bi, Sb,and As from slag,matte, and metallic copper

A comprehensive compilation of various thermodynamic data required for a complete analysis of copper matte converting reactions is presented. The data comprise estimated free energies of formation for such gases as SeO, SeS, TeO, TeS, BiO, BiS, SbO, SbS, AsO, and AsS, as well as activity coefficients in dilute copper alloys and vapor pressures of various elements and compounds. The volatilization of minor elements in steady-state reactors comprising gas and several condensed phases is mathematically formulated, and a parameter which governs the volatilization in such reactors is defined and named volatilization constant. The vapor pressures of various volatile species are calculated thermodynamically for the Noranda Process reactor by assuming equilibrium conditions. The volatilization constants of various minor elements are expressed explicitly as functions of oxygen and sulfur activities. Formerly Associate Professor, Department of Metallurgical Engineering, University of Utah, Salt Lake City, UT     

Bits, symbols, bauds, and bandwidth

The use of clear, concise, and unambiguous language in telecommunications engineering is vital to communicate a desired meaning and understanding. Terminology should be based on rigorous engineering principles and traceable to well known and dependable sources. This article deals with four everyday terms commonly encountered in the popular semi-technical press as well as in serious engineering periodicals. The misuse of these and other terms can lead to low-balled cost proposals, court litigation, and patent infringement cases. Imagine how an engineering student can be confused when she/he typically encounters bandwidth measured in bits per second     

Novel planar, square-shaped, dielectric-waveguide, single-, and dual-mode filters

This paper presents a novel concept of a square-shaped dielectric-waveguide resonator, which can easily realize a dielectric-waveguide cross-coupled filter or a dielectric-waveguide dual-mode filter, using the conventional printed circuit board (PCB) process. This planar dielectric-waveguide resonator has a higher Q value than a microstrip resonator. The physical mechanisms of both single- and dual-mode filters are elucidated. Some new coupling structures are developed for undergoing the PCB process. Filter design procedures are detailed. Design curves for the coupling coefficients of internal- and external-coupling structures are determined by full-wave finite-element-method electromagnetic calculations. Measurement results are highly consistent with theory for all trial filters. This study offers an effective means of producing low-cost high-performance planar circuit filters.     

PBX技术.市态.营销.选购

本文介绍了ＰＢＸ交换机的技术及市场需求态势。并提出ＰＢＸ产品的营销要素及其用户在选购时应遵循的原则。     

Dilemmas,uncertainty, risks,and board performance

This paper traces the origins of the words risk, uncertainty, governance and development and argues that a deeper understanding of each allows more effective decision taking in the boardroom. It argues that the role of the board of directors is to balance and rebalance continuously their irresolvable dilemma — ‘how do we drive our enterprise forward while keeping it under prudent control?’ It argues that it is the board’s role to focus on uncertainty, rather than risk, and this requires a different set of intellectual skills from board members to be able to cope with monitoring a range of diverse scenarios. This is crucial for a board to develop stronger ways of both leading their organisation and of ensuring the connectedness of the learning within and between the board and the operational unit’s risk taking. It advocates that to achieve this a board must develop new ways of learning — especially of thinking strategically and becoming more sensitised to the dynamics of their changing external environments. This will take them well beyond the comforts of their specialist managerial disciplines and into the true world of directing. The paper demonstrates the importance of continuous learning in reducing organisational uncertainty and risk. It uses the ‘Learning Board’ process and model as the central processor of both strategic and operational learning to create an annual rhythm for the board’s year.