中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜

ZTE launches PowerMaster ONE solutions

During the exhibition, ZTE energy solutions expert Huang Yuanhua published "Green & Magic Energy Box, ZTE New Generation Hybrid Solution-PowerMaster ONE keynote speech, the development trend of power supply based on hybrid communication energy, focusing on PowerMaster ONE scheme in solving the problem of the lack of electricity supply site area, through innovative design concepts ａnd technologies to help clients achieve the maximum value of interest, especially in the background of telecom operators gradually sell assets to PASSIVE infrastructure operators, PowerMaster ONE scheme can meet the site from a single user power supply to the power supply smooth expansion ａnd upgrading, effectively avoid the unique advantage of customers＇ investment losses.中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜

ZTE energy solutions expert Li Weibo published on the theme of "An Innovative Energy Management the System for Telecom Energy Network", showing the energy management scheme for iEnergy networks based on cloud technology, presents ZTE energy products in the field of network energy management中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜rgy industry, ZTE is continuously innovating in the energy field, ａnd is committed to continuously introducing products ａnd programs that satisfy customers. There are many market application cases in the world.

“蓄电池备电+移动油机应急发电”是有市电区域Z基本的基站后备动力保障配置方案。对于频繁需要上站应急发电的基站叠加小功率太阳能系统，可大幅降低应急发电成本，并持续获得电费节省，投资回报周期小于3年。传统叠光方案存在太阳能利用不充分、影响电池充电管理等问题，采用兼容太阳能输入的开关电源系统叠光，可以低成本实现高收益。支持叠光的

通信电源系统有利于在运维期间动态调整配置，针对应急发电上站次数较多的基站实施叠光，能Z小化叠光投资，在提高动力保障的同时长期节省电费和应急发电成本。

一、电池和应急发电问题多，成为断站因素

随着互联网快速发展，人们生活已经离不开网络，需要无处不在的移动宽带。基站稳定运行是通信网络高可用的基础，由于停电不可避免，基站需要有合理的后备动力保障方案。蓄电池+移动油机是Z常用的后备动力保障方式，停电时由蓄电池支持基站工作，当蓄电池容量不足时，调派移动油机上站发电，保障基站运行不中断。

由于居民对噪声的普遍反对，以及站点所在建筑物出入管理原因，实际上城市站点很难上站应急发电；农村站点发电距离远、高山站上站困难，应急发电保障度困难。通过对基站通信中断原因分析，平均57%网络中断与基站配套相关，停电是引起网络中断的要因。

以某市某运营商3453个站点为例，高山站无法应急发电的有195个，业主原因经常无法上站发电的有2004个，无法用移动油机保障的站点占比高达64%。该运营商单月停电2771站次，由于停电原因发生断站1923次，停电断站率高达69%。停电断站涉及1322站点，平均每站断站时长高达2.1小时。应急发电次数802次，停电发电比例29%，其中包括40次应急发电不及时导致基站运行中断。由此可见，停电后不能应急发电或应急发电不及时是造成通信网络中断的因素。

二、蓄电池+移动油机，后备动力保障成本很高

在基站容量一定的条件下，蓄电池容量取决于后备时长要求，后备时长必须大于应急发电上站时间，并留有足够的余量。对于频繁停电的基站，如果具备小型固定油机安装条件，可安装固定油机，不具备固定油机安装条件的基站，适当增配电池，如郊县、农村、山区备电时长可分别增至5、7、10小时。对于通信负载平均功率为2kW的站点，备电7小时需要配置一组500Ah蓄电池，电池成本很高。移动油机作为应急保障电源，停电时安排发电人员上站发电，即使应急发电人员尚未到达站点时市电已恢复，也需要支付应急发电费用。

应急发电成本包括上站人工费用、发电油费、移动油机摊销成本。上站人工费用与当地劳动力成本相关，一般在300元/次左右；发电燃油成本与发电时长、耗油率相关，一般平均每次发电消耗50元左右燃油；移动油机摊销成本包括油机折旧、油机维护成本分摊，平均每次发电分摊30元左右。农村站点是停电高发区域，平均月上站次数可能超过一次，按应急发电成本每次380元计，如果每月发电一次，每年单站应急发电成本4560元，发电成本很高。

减少停电断站、提高通信网络质量是通信动力系统建设与维护的要务。不论是增配蓄电池延长备电时长、提高应急上站发电次数、安装固定油机等，都可以降低停电断站率，提高通信网络质量。由于蓄电池成本很高，增加1小时备电时长平均每站每年需要投入400元左右；每增加1次应急上站发电需增加380元左右；安装固定油机一次性投入成本很高。不论是电信运营商还是铁塔运营商，都需要有以较低成本提高保障质量的解决方案。

三、站点叠光，低成本提高供电质量、降低运维成本中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜

站点叠光方案，指在站点电源基础上叠加太阳能，安装仅满足通信负载功率需求的太阳能电池板，优先使用太阳能供电的方案。太阳能是可再生能源典型代表，叠加太阳能可降低站点电费。例如，对于平均直流负载功率为2kW的站点，假设日照时数为4小时（全国省会城市贵阳2.84小时、拉萨6.7小时，一半以上超过4小时），采用叠光方案可年省电2920度，需要安装约2.5kWp的太阳能电池板。客户采购太阳能电池板、太阳能模块及其安装服务成本为22000元，如果电价为1元/度，则叠光方案的投资回报周期为7.5年左右，决策投资相对困难。

叠光后，如果基站停电发生在有日照的时段，可以不需要应急发电。由于深夜通信业务较少、夜晚上站发电相对危险等因素，实际很少夜间发电。此外，由于移动油机普遍不防雨且室内发电危险，雨天一般也不发电。因此，应急发电多在没有下雨的白天进行，该时间段太阳能可用概率很高，即使阴天太阳能发电量很少，也可延长电池备电时长。经过测算，采用叠光方案的站点，可以减少80%以上上站应急发电成本，并降低由于应急发电不及时带来的断站风险。

例如，某市某运营商共432个基站，2014年12月份发电77次，只有一次为夜间发电，发电次数TOP 10基站平均发电15.64小时，平均发电次数3.8次，Z长一次发电时长仅5.42小时，发电时长相对平均。在相同应急保障条件下，对于应急发电TOP 10站点具备安装太阳能电池板条件的，可采用叠光措施，假定减少应急发电次数比例为80%，单站一个月可以节省上站费用1155元。由于12月份并非停电高峰，评估单站一年可节省1.4万元以上发电费用，远比省电价值更大，投资回报周期仅1.3年左右。如果批量采用叠光方案，还可能获得国家和地方政府财政补贴，如浙江省对于太阳能发电量每度补贴0.42元，可以进一步降低投资回报周期。由于应急发电成本以人工费用为主，人工费用呈长期上升趋势，随着应用时间的增加，叠光方案回报越来越高。

3~5年是合理的投资回报周期，按示例，叠光方案总投资2.2万元，只要每年节省超过4400元，就值得投资。一个2kW站点年省电按2920元计，只需要能年节省1480元应急发电费用即可满足5年投资回报要求。按每次发电成本380元计，对于年上站应急发电需求4次以上的站点，都值得投资叠光方案。如果太阳能发电可获得补贴，如0.42元/度，每年补贴1226元，加之站点都或多或少存在应急发电需求，对所有具备安装太阳能条件的站点普遍叠光，会具备非常好的投资回报。一个单运营商2G/4G站点或两个运营商单制式共享站典型负载平均功率接近2kW，可配置一个3kW太阳能模块和9×250Wp太阳能电池板，只需要净占地面积13平米。当安装面积不足时，可以欠配安装，如只安装1.5kW太阳能电池板，停电时不足的功率由电池补充,使原来只能备电3小时的站点（300Ah电池）在阳光较好时备电时长延长至12小时以上，同样能大幅减少应急发电次数。

四、传统叠光方案，电池管理风险需要谨慎控制

传统叠光方案指在站点内增加一套独立的太阳能系统，太阳能模块输出的直流电直接与存量开关电源直流输出并联，太阳能系统与开关电源互相独立。由于需要优先使用太阳能，太阳能系统输出的开路电压应高于开关电源。对于传统叠光方案来说，太阳能系统输出电压设置非常关键，不合适的设置会导致部分甚至全部太阳能被浪费。当开关电源或太阳能系统电压测量电路出现偏差时，也可能发生同样的结果。此外，开关电源均充时，由于电源输出电压更高，这段时间内太阳能无法被利用。

开关电源具备蓄电池管理功能，能限制充电电流以保护蓄电池使用寿命。当太阳能系统输出电压高于设置值时，过高的电压使电池过充。由于叠加的太阳能功率大于负载功率是常态，在蓄电池需要充电时，多余的太阳能功率也会对电池进行充电，使电池充电电流大于开关电源设定的充电限流值，蓄电池实际充电电流与开关电源系统测量值不一致，不利于蓄电池充电管理。

开关电源都有温度补偿功能，电池温度补偿范围为±2V，由于开关电源温度补偿功能无法与太阳能系统关联，温度降低时电源浮充电压升高，导致太阳能浪费，而温度升高时太阳能输出电压不变，使电池加速充电失水。如果取消开关电源温度补偿功能，太阳能可以得到充分应用，但会影响蓄电池使用寿命。

为了充分利用太阳能，保护电池寿命，对于传统叠光方案需要准确配置太阳能电池板数量，谨慎设置太阳能系统和开关电源电压，并取消电池温度补偿功能，在温度变化不大的室内站点使用。

五、电源兼容太阳能，消除电池管理风险

随着电力电子技术与数字信息技术融合发展，电源模块控制芯片内含软件和算法，使硬件功能可由软件定义，称为软电源（SDP，Software Defined Power），可以很方便地实现不同功能模块兼容。太阳能模块与整流模块兼容就是典型的软电源特性，采用兼容太阳能的开关电源系统，就能在任何合适的站点在电源模块位置插入太阳能模块，不需要采购独立的太阳能控制系统，除了太阳能电池板采购及安装费用外，只需要从开关电源厂家购买一个太阳能模块即可。

由于太阳能模块与整流模块兼容，通过同一个监控模块控制，不论太阳能功率大小，也不论蓄电池需求电压高或低，都会优先调度使用太阳能，使太阳能全部得到利用。太阳能模块和整流模块的输出电压统一控制，并与中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜电池温度补偿同步，蓄电池充放电管理功能完全不受影响。山西铁塔联合华为试点MTS站点电源叠光，叠光工程量就是安装太阳能电池板的工作量，系统不需要调试就成功投产。因此，部署站点时宜优选支持叠光功能的电源系统，引导全行业电源向多功能兼容方向发展。对于存量宜叠光站点，如果存量电源不是GX电源且无法直接替换GX模块，优先采用多功能GX电源改造。

六、应急发电TOP N管理，实现低成本叠光

由于站点规划建设时很难预测未来应急发电情况，对于投产后的站点可以采用基于短板改进的应急发电次数TOP N管理手段，通过站点网管系统对应急发电次数进行统计，选择应急发电次数多、合适安装太阳能电池板的站点进行叠光，可以实现JZ配置，Z小化叠光成本。如山西试点的叠光站点就是停电次数较多的站点，经测算，站点叠光年收益高达2.1万元/年，非常可观。

如果全面采用支持叠光的电源系统，定期对区域内基站应急发电次数TOP N站点进行叠光、叠油（不具备安装太阳能条件，但可安装固定油机的）、叠电（对于不能叠光、叠油的站点，可直接增配新电池或锂电池）等手段优化，逐渐消灭需要频繁应急发电的站点，大幅度减少应急发电上站次数，降低应急发电成本，并在节能的同时提高基站可靠性。到目前为止，叠光是以较低成本实现站点供电高保障的方案。

"Battery preparation +

mobile oil engine emergency power generation" is the most basic backup power support configuration of base station in the city. For the base stations that frequently need to go to the station for emergency power generation, the small power solar system can be superimposed, ａnd the cost of emergency power generation can be greatly reduced, ａnd the electricity cost will be continuously saved. The investment return cycle is less than 3 years. Traditional stacking scheme has many problems, such as inadequate solar energy utilization ａnd influence on battery charging management. The switching power supply system compatible with solar input can achieve high cost at low cost. The communication power supply system supporting stacking light is conducive to dynamically adjusting the configuration during operation ａnd maintenance. It can reduce the cost of light investment for the base stations which are more frequent on the basis of emergency power generation, ａnd minimize power overlay investment. At the same time, it can save electricity ａnd emergency power generation cost at the same time.

One, battery ａnd emergency power generation problem, become the first factor of fault station

With the rapid development of the Internet, people can not live without the network, ａnd it needs ubiquitous mobile broadband. The stable operation of the base station is the foundation of the high availability of the communication network. Because of the inevitable blackout, the base station needs a reasonable backup power support scheme. Battery + mobile oil machine is the most commonly used backup power support mode. When the power fails, the battery will support the base station. When the battery capacity is insufficient, the mobile oil station will be dispatched to the station to generate electricity, so that the base station will run without interruption.

Because of the widespread opposition to noise ａnd the reasons for the access ａnd management of buildings in the site, it is very difficult for the urban station to go to the station for emergency power generation. The rural station is far away from the power station, ａnd the station on the high m中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜ountain station is difficult, ａnd the emergency generation support is difficult. Through the analysis of the reason for the interruption of the base station communication, the average 57% network interruption is related to the base station, ａnd the blackout is the first cause of the network interruption.

Take 3453 operators of a certain city as an example, there are 195 stations that can＇t generate electricity by emergency at Gaoshan station, ａnd 2004 of them cannot afford to go to station because of owners＇ reasons. The proportion of stations that cannot be protected by mobile oil machine is 64%. The operator single month outage 2771 times, due to power outages cause broken station 1923 times, power station fault rate is as high as 69%. The blackout station involves 1322 stations, ａnd the average height of each station is up to 2.1 hours. Emergency power generation 802 times, power generation ratio of 29%, including 40 emergency power generation is not timely lead to the base station operation interruption. So it can be seen that the failure of emergency power generation or emergency power generation after blackout is the first factor that causes the interruption of the communication network.

Two. Battery + mobile oil machine, the cost of backup power is very high

Under the condition of certain capacity of the base station, the capacity of the battery depends on the reserve time requirement, ａnd the reserve time must be larger than the emergency power generation time, leaving enough margin. The base station for the frequent power outages, if you have a small fixed oil machine installation conditions, can be installed ａnd fixed oil machine, do not have the conditions of fixed base station installation of machine oil, properly equipped with batteries, such as suburban, rural ａnd mountainous areas by time can be increased to 5, 7, 10 hours. For a station with an average power of 2kW for the communication load, a set of 500Ah batteries should be configured for 7 hours, ａnd the cost of the battery is very high. The mobile oil as an emergency power supply, when the power is cut off, the generator will be sent to the station to generate electricity. Even if the emergency generator has not arrived at the site, the electricity has been recovered, ａnd the emergency power generation cost should be paid.

The cost of emergency power generation includes the labor cost of the station, the cost of power generation oil, ａnd the amortization cost of the mobile oil machine. On labor costs associated with local labor costs, generally about 300 yuan / times; the cost of fuel ａnd power generation time, fuel consumption rate, the average power consumption per 50 yuan fuel; mobile oil machine including machine depreciation, amortization cost of oil ａnd oil machine maintenance costs, the average power allocation of 30 yuan. The rural station is a high power failure area. The number of stations on average may exceed one time per month. According to the emergency power generation cost, 380 yuan per time. If the electricity is generated once a month, the annual single station emergency power generation cost is 4560 yuan, ａnd the cost of generating electricity is very high.

中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜the high cost of battery, the increase of 1 hours, the average power consumption time is about 400 yuan per station per year. For every 1 increase, the power generation for emergency stations needs to increase by about 380 yuan, ａnd the cost of installing fixed oil units is high. Both telecom operators ａnd tower operators need solutions to improve the quality of the guarantee at a lower cost.

Three, site stacking, low cost to improve the quality of power supply ａnd reduce operation ａnd maintenance costs

The site overlay scheme refers to the solar panels that are installed on the site power supply ａnd only meet the power demand of communication load. Solar energy is a typical representative of renewable energy, ａnd the superposition of solar energy can reduce the electricity cost of the site. For example, the average DC load power for the 2kW site, assuming the sunshine hours for 4 hours (the capital city of Guiyang, Lhasa＇s highest minimum 2.84 hours 6.7 hours, more than half of more than 4 hours), the scheme can stack light annual saving 2920, need to install about 2.5kWp solar panel. The cost of customer purchasing solar panels, solar modules ａnd installation services is 22000 yuan. If the electricity price is 1 yuan / degree, the investment return period of the scheme is about 7.5 years, making investment decisions relatively difficult.

After stack light, if the base station blackout occurs in the period of sunshine, there is no need for emergency power generation. Because of the low night communication service, the night is on the station。

数据ZX是我国实施“互联网+”的重要基础设施载体。相关统计显示，截至2014年年底全国共规划建设数据ZX310个，已投入使用230个，其中约有三分之一为大型数据ZX。另据数据ZX产业联盟发布的《数据ZX产业发展白皮书》显示，2011~2016年我国数据ZX总投资将超过1万亿元。其中高低压供配电、不间断电源、制冷系统等配套设施造价在基础设施造价中所占比例约75%~80%。

大型数据ZX建设热潮来袭。然而，在大型数据ZX的运营中，巨大的配电成本支出正在对运营商形成挑战，同时配电单元往往占用大量面积，不利于数据ZX的节能环保。因此，如何能够在保证数据ZX稳定运行的情况下，实现配电系统的革新，显著降低配电成本成为业界关注的问题。正是在这一趋势下，中压型UPS开始兴起。中压型UPS能够提高接近负荷ZX的电压等级，减少低压配电环节，降低能耗。可以预见，随着电信行业去电信化、减配增效的深入推进，中压UP中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜S系统将迎来广阔的市场前景。

大型数据ZX低压配电系统亟待革新

我国早期通信系统负有政治安全责任，通信网络一旦中断将追究相关方政治责任，所以我国通信系统中冗余配置较高，这从早期UPS和开关电源蓄电池组后备时间的不一致可见一斑。所以，在建设数据ZX的供电系统时，为了保证系统安全可靠性，充分考虑设备配置和冗余。

目前大型数据ZX园区或大型数据ZX的供配电结构一般是引市电高压（110kV）或中压（35kV、10kV）到高压配电室然后再分配给干式变压器（转成380V）并配置成套低压配电系统，成套低压配电系统中的馈电柜再通过密集母线或电缆分配电能到每个楼层的低压配电柜，再分配到大型的UPS（如500kVA、600kVA），目前每套低压配电系统一般配置到2000kVA，每套低压系统Z多带两套大容量的1+1型UPS系统或2N型UPS系统，这种从高压配电系统-低压配电系统-UPS的结构在早期中小型数据ZX应用广泛，但随着数据ZX单UPS系统配电容量的加大，这种配电结构存在诸多缺陷。

，投资浪费严重。单套低压配电系统存在浪费投资、浪费机房空间、浪费密集母线等浪费现象。虽然也可以将变压器配置在每个楼层，但是供配电结构没有变化，随着大型UPS的使用，每套2000kVA的低压配电系统下挂2套600kVA（1+1）考虑充电电流及负载冗余后即满。

第二，增加供配电等级，增加了安全隐患。在相同的电源器件环境中，对于配电系统来说上下游开关越少越安全，配电等级越少可靠性越高，接近负荷ZX的电压等级越高越节能。大型数据ZX园区35kV开关站-10kV高压配电柜-10kV配电柜-变压器-低压配电柜-密集母线-楼层配电柜-UPS系统，8层级的配电结构，每多1个层级则意味着增加一个故障隐患点。

第三，影响机房可使用面积，增加建筑成本。对于大型数据ZX，如果每层楼均配置变压器低压配电室、UPS系统电源室，相应电源区域要预留40%以上的空间，对于通信机房来说，一般预留25%~30%空间，且低压配电结构冗余度越大占机房面积越大。

中压型一体化UPS正在兴起

回顾通信领域的高低压配电发展趋势，交流系统从早期的380V到中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜10kV，不间断电源从220V到240V、336V高压直流，设备功耗密集程度越大配电系统的电压等级也随之上升，采用高压等级的设备可以更多地减少线损、线缆母线投资、节省设备占地面积、减少转换次数也意味着节能，同样，改变传统的380V进380V出220V配电的结构，提高UPS进入电压等级至10kV以上也具备以上优点。使用如10kV的UPS的前提是将传统低压配点系统的计量功能、功率补偿功能、低压发电机组转移到10kV系统。

低压配电中的计量可采用高压端计量。传统数据ZX往往是通过在低压段低压配电系统中配置计量柜的方式，但是随着数据ZX规模越来越大，大型数据ZX已有10套以上的低压配电系统，且分为生活用电、办公用电等，统计量工作放在高压将成为一种趋势。采用高压端计量的同时仍可以通过中压型一体化UPS的变压器的数据采集进行自动统计上报。

低压配电中的补偿功能可改为高压补偿和负荷ZX就近补偿。对于数据ZX来说，感性负载和容性负载同时存在，感性负载主要为空调主机、风机等电机类设备；整流设备、IT设备为容性负载；也就说数据ZX感性负载和容性负载是同时存在的，是相互补充的。统计显示，目前大部分通信局楼的低压电容器柜多设置为人工投入，因为由于感性负载和容性负载的同时存在，功率因数cosΦ通常都在0.92以上。采取在低压配电系统进行补偿属于后补偿，没有起到有效作用，且在谐波环境下容易引发电容器共振并存在爆炸风险。因此未来的数据ZX应针对具体机房环境测试其谐波和无功负荷情况进行就近补偿。

大型数据ZX采用高压油机是必然趋势。目前大型、超大型数据ZX已推广采用高压油机，带来很多优势：电缆、上下游开关配置方面，简化了配电结构，高压油机使用高压电缆传输电力，高压输电电流相当于低压输电电流的二十六分之一，上下游开关及电缆投资节省、敷设及施工方便、线损很小、安全性也较高；便于进行多机并机，形成大容量后备电源，消除了常压油机系统面临的输出容量瓶颈；若采用高压空调必须采用高压油机，离心机组启动电流较大，如国内某运营商集团企业标准规定“除变频供电的电动机外，单台额定功率大于350kW 的电动机，宜采用10kV 电源供电”。采用高压冷水机组供电后，可以相应减少变压器及低配和密集母线、电缆的投资，综合对比高压冷水机组的价格因素，初步统计可以节省0.075万元/kW（制冷量）；高压油机集中布置，可以根据园区功耗发展情况分期、逐台投资，而低压油机则只能是与低配模块化相匹配而无论油机的实际负载率，造成油机投资浪费；推广使用高压油机之后低压配电系统中的ATS柜可以减配。

以上分析证明，低压配电系统中的主要功能，计量、电容、ATS柜等都可以代替，实施高压到负荷ZX的二级转换比再经过低压侧显然可以节省更多成本，减少中间配电环节后也使得可靠性提高很多。

国外中压UPS系统应用现状

从欧洲地区的中压UPS系统发展来看，中压UPS系统多应用在工业级不间断电源应用场景中，拥有兆瓦级额定功率和高达99.5%的中压UPS，储能和逆变器依然处于低压水平，它还能大幅简化维护作业和降低系统成本。中压UPS可进行改造，进行定制化设计，可兼容各种各样的储能装置，具体取决于所需的保护时间。超级电容器和飞轮可在几秒钟内提供高密度保护，而电池可以达到长达15分钟的备用时间。

北美地区早期工业用中压型UPS系统多为集装箱式结构或露天箱体结构。数据ZX使用的中压型UPS系统多为户内型、模块化结构，容量为2.0MW~20MW。包括输入输出开关柜、变压器箱、主控单元、PES柜（中压）、双向变流器、储能箱等。户外型储能箱后备时间为1~3分钟，户内型后备时间根据客户需求配置，可以达到30分钟以上。

可以看到，国外已有类似产品，但是国外的中压UPS较多定位于将UPS系统功能集中于中压段解决，目前已在美国的部分大型数据ZX开始应用。

尤为值得一提的是，相比传统低压UPS，中低压一体化UPS在同样的场景下将减少80%的投资成本，而之所以能够带来这一“不可思议”的改变，则主要得益于大幅减少了传统低压配电柜的占地面积，节省了大量的低压配电母线、电缆，同时发电机组采用高压油机也便于分期投资。可以预见，中压UPS系统的建设将为运营商节省大量的供配电成本，进一步提升运营商的市场竞争力。

The data center is the implementation of the "critical infrastructure support Internet plus" in china. Statistics show that as of the end of 2014, 310 data centers were planned ａnd built in China, ａnd 230 of them had been put into operation, of which about 1/3 were large data centers. According to the data center industrial development white paper published by the data center industry alliance, the total investment of China＇s data center will exceed 1 trillion yuan in 2011~2016. The cost of high ａnd low voltage supply ａnd distribution, uninterrupted power supply, refrigeration system ａnd other supporting facilities is about 75%~80% in the cost of infrastructure.

Large data center construction upsurge is coming. However, in the operation of large data centers, the huge distribution cost is challenging the operators. At the same time, the distribution units often occupy a large number of areas, which is not conducive to the energy saving ａnd environmental protection of data centers. Therefore, how to ensure the stable operation of data center ａnd realize the innovation of distribution system, significantly reduce the distribution cost has become the industry＇s concern. It is under this trend that medium voltage UPS is beginning to rise. The medium voltage UPS can improve the voltage level near the load center, reduce the low voltage distribution link ａnd reduce the energy consumption. It is foreseeable that the medium voltage UPS system will usher in a broad market prospect as the telecom industry goes to the telecommunication industry, the reduction ａnd the increase of efficiency.

The low voltage distribution system in large data center needs to be innovated urgently

China＇s early communication system bears the responsibility of political security. Once the interruption of communication network is concerned, the related party＇s political responsibilities will be investigated. So the redundancy allocation in China＇s communication system is relatively high, which is evident from the inconsistency between the early UPS ａnd the reserve time of the switching power battery group. Therefore, in building the power supply system of the data center, in order to ensure the safety ａnd reliability of the system, the configuration ａnd redundancy of the equipment are fully considered.

The current power supply structure of large data center park or large data center is generally cited city electric pressure (110kV) or medium (35kV, 10kV) to the high voltage distribution room ａnd then assigned to the dry-type transformer (to 380V) ａnd the configuration of complete sets of low-voltage distribution system, complete sets of low-voltage distribution system cabinet system in the crowded bus cable or distribution of electric energy to low voltage power distribution cabinet on each floor, redistribution to large UPS (500kVA, 600kVA), the current at the low voltage distribution system general maximum configuration to 2000kVA, each with a maximum of two sets of low voltage system of large capacity 1+ 1 type UPS or type 2N UPS system, the structure of high voltage power distribution systems - from low voltage power distribution system -UPS in the early application of small data center, but with the increase of data center power distribution capacity of single UPS system, many defects of this distribution structure.

First, the waste of investment is serious. A single low voltage distribution system is wasteful of investment, waste of space, ａnd waste of dense busbar. Although it is possible to transformer configuration on each floor, but no changes in the structure of power supply, with the use of large UPS, under the low voltage distribution system of each 2000kVA 2 600kVA (1+1) considering the charging current ａnd the load is full of redundancy.

Second, increase the level of power supply ａnd distribution, ａnd increase the hidden danger of security. In the same power supply device environment, for the distribution system, the less the upstream ａnd downstream switches are, the safer. The less the distribution level is, the higher the reliability. The higher the voltage level near the load center, the more energy saving. Large data center park 35kV switchgear, -10kV high voltage switchgear, -10kV distribution cabinet, transformer low voltage switchboard, dense busbar floor switchboard -UPS system, 8 tier power distribution structure, every 1 or more levels means adding a hidden danger point.

Third, it will affect the available area of the machine room ａnd increase the cost of the building. For large data center, if every floor of the configuration of low-voltage distribution transformer chamber, UPS system power supply room, corresponding power area should set aside more than 40% space for communication room, usually reserved for the 25%~30% space, ａnd the greater the redundancy structure of low voltage power distribution room for a larger area.

Medium voltage integrated UPS is on the rise

Review the development trend of high ａnd low voltage power distribution communication field, AC system from 10kV to early 380V, uninterrupted power supply from 220V to 240V, 336V high voltage DC voltage, the greater the degree of power equipment intensive distribution system also increased, the voltage level of the equipment can reduce the line loss, more investment, save equipment floor bus cable area, reduce the number of transitions also means the same, energy saving, change the traditional 380V into 380V structure 220V distribution, improve the UPS into the voltage level to above 10kV have more advantages. The premise of using UPS such as 10kV is to transfer the metering function, power compensation function ａnd low voltage generator to 10kV system.

中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜

High voltage end metering can be used in the measurement of low voltage distribution. The traditional data center is usually configured through metering cabinet at low pressure in the low voltage distribution system, but with the increasing scale of data center, large data center has more than 10 sets of low-voltage distribution system, ａnd divided into electricity, electricity ａnd other office work, statistics on the pressure will become a trend. At the same time, the data acquisition of the medium voltage integrated UPS transformer can be collected ａnd reported automatically by the high voltage end measurement.

The compensation function in low voltage distribution can be changed to high voltage compensation ａnd load center close compensation. For data centers, there is also the inductive ａnd capacitive loads, inductive load mainly for air conditioner, fan motor equipment; rectification equipment, IT equipment for the capacitive load; also said data center of the inductive ａnd capacitive loads exist at the same time, is complement each other. Statistics show that at present, most of the low voltage capacitor cabinet of the communication bureau building is set up。

“模范城市曼海姆（MOMA）”项目是由德国政府启动的“未来能源系统”计划的一部分。该项目通过在当地电网中部署先进的信息通信技术以及小型装置，使消费者直接体验可再生电能的波动使用特点。

MOMA电网将来自超过500个生产商供应的电力配送至曼海姆及毗邻的德累斯顿市。电网本身兼作电力线宽带系统，连接了大量家用智能设备。该项目始于2010年，至今已有1000名居民参加，这些居民的家电都连接到这个“能源互联网”中，并利用众多的软件工具监控其电力使用和支出状况。

MOMA首席执行官英戈 勋伯格（Ingo Schoenberg）表示：“可再生能源的挑战是，时而有风，时而阳光普照，但当你需要的时候它们并不一定可用。MOMA项目寻求供求平衡的方法，力求在高波动性的能源发电和智慧的能源消耗之间取得平衡，并同时提GX率。”

勋伯格说：“通过将税费与电网容量相连接，鼓励项目参与者在能源可用性高、价格低的时候用电。对于那些不愿意自己调节设置的用户，MOMA甚至制定了‘节能管家’帮助用户在能量充足、价格便宜的时段打开电器。项目的运行状况表明，当消费者知悉能源的真实价格时，自然会改变使用方式。”

在知识和技术的武装下，私人用户节约了10%左右的能耗和15%的能源费用，而电力运营商能够更好地管理网络负载。MOMA项目的成果为制定弹性电价、建立同时承载智能电网和智能电表的单一通信平台提供了立法的依据。

高品质通信网络助力电网升级

MOMA项目采用的技术解决方案也为电力供应商提供了解决电力中断并提高运营效率的新方法。在美国，风暴和“小动物”严重破坏电力供应，加州大学伯克利分校2004年的一项研究表明，美国每年由停电造成的损失达到800亿美元。

田纳西州的查塔努加电力委员会为分布在约1500平方公里的居民提供电力服务。根据伯克利大学的数据计算，每年停电会对其服务区域造成约1亿美元的损失，但该电力委员会并不是一个典型的美国能源供应商。

2012年，在美国能源部“复苏法案”的11550万美元的资金刺激下，查塔努加电力委员会完成了高度自动化的智能电网升级工作，为电网配备了智能传感器、开关和仪表。与MOMA项目一样，其电网以高品质的通信网络为基础，查塔努加电力委员会选择了光纤宽带网络承载消费者三网合一的服务。

电力委员会执行副总裁大卫 韦德（David Wade）表示：“这应该就是未来电网的样子，美国还没有其它公共事业能够达到如此高的自动化水平。但是，一切都取决于通信能力，查塔努加的电网与光纤网络无缝衔接，这使得查塔努加成为实现我们未来设想的场所。”

现在，在查塔努加，如果一辆汽车撞到了电线杆，电力委员会的电网将会进行“自我修复”。电网中的1200个智能开关可以通过光纤网络确定电路中断的位置，并改道供电。2月12日，查塔努加遭遇了20年来Z严重的暴风雪，4万名居民的供电自动恢复，其他3.6万名居民的供电在工程师的帮助下，3天之内恢复正常。

中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜

电力委员会估计，以前恢复这7.6万名居民的供电需要8天的时间。2012年以来，该区域的断电事件减少了50%~60%，每年为当地减少了5000万美元的支出。电力委员会自身也大大节约了成本：在维修、资产管理、上门服务以及盗窃方面，节约的成本高达1050万美元。

自动化解决方案创建更加智能的电网

用户的偷电行为仍然让电力供应商头疼不已，严重影响了利润的获取。华为，一家来自ZG的技术公司，针对电力供应面对的新挑战设计了不同的解决方案，既包括大规模的网络基础设施项目，也包括专门处理偷电等局部问题的核心平台。

据华为介绍，尼日利亚的消费者偷电状况尤其严重，供电商一直无法找出问题的原因，到目前为止，无法收集到准确的能耗数据的用户数量超过了80%。

为了解决这个问题，华为正准备在尼日利亚安装一个覆盖40万本地家庭的自动抄表系统，支持高速数据连接，同时部署新的传感器和控制器。该系统部署完成后，客户的电表将每15分钟传输一次数据到当地运营商，从而使运营商获得实时的用电数据。

华为企业BG Marketing与解决方案销售部总裁何达炳说：“该系统将有效提高电力公司的营业额和利润。即时通信系统和可靠的电力基础设施维护是电力GX生产和配送的关键。其可以实现早期预警、实时故障定位、自我修复和有效负载管理等功能。”

随着ZG经济的崛起，城市的蓬勃发展给传统电网带来了极大压力。珠海电力局要为珠海市、淇澳岛、横琴岛和高栏岛的822万居民供电。面对着各种接入、可靠性、成本和容量问题，传统的固定和无线技术已经无法满足业务要求，珠海电力局迫切需要提高网络的自动化水平。

对于珠海电力局而言，在其服务区域安装光纤电缆过于昂贵复杂。因此，其选择了成本相对较低、但速度与光纤相似的华为4G LTE无线集群系统。与传统双向无线通信系统一样，华为eLTE无线集群解决方案为珠海电力局提供了专用无线网络，从而实现配电自动化通信。

同样，在ZG东部沿海城市青岛，华为改造了阻碍电力性能的老旧线路和不可靠的通信网络。华为全光xPON解决方案具备高度自动化的特点，帮助青岛供电公司有效管理分布式供电，并提高网络可靠性。

华为表示，通过利用网络中的智能终端对数据进行实时监测，在数秒之内，就可以隔离故障线路，实现电网的自动修复。现在，青岛供电公司每年停电时长减少了2.6小时，达到每户1.1小时；每年电力损失下降了33.4兆千瓦时。

总而言之，为建立环境友好型社会，公用事业单位面临着降低成本、优化运营以及遵守更加严格的规定等方面的压力。为应对这些挑战，华为等科技公司提供大量解决方案，从而创建更加智能的电网，提供更加环保的能源。

The "model city of Mannheim (MOMA) project by the German government launched the" future energy system is a part of the project ". By deploying advanced information ａnd communication technology ａnd small devices in the local power grid, the project directly enables consumers to experience the fluctuating characteristics of renewable energy.

MOMA grid will be from more than 500 manufacturers of power supply ａnd distribution to the adjoining Dresden city of mannheim. The power grid itself is also a power line broadband system, which connects a large number of household intelligent equipment. The project began in 2010. Up to now, 1000 residents have participated. The household appliances are connected to the "energy Internet", ａnd many software tools are used to monitor their electricity use ａnd expenditure.中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜

Schoenberg, chief executive of MOMA, Ingo Schoenberg, said: "the biggest challenge of renewable energy is that sometimes it is windy ａnd sunny. But when you need it, they are not always available. The MOMA project seeks a balanced supply ａnd demand approach to achieve a balance between high volatility energy generation ａnd intelligent energy consumption, ａnd increase efficiency. "

"By connecting tax ａnd electricity to power grid capacity," Schoenberg said, "project participants are encouraged to use electricity when they have high energy availability ａnd low prices. For users who don＇t want to adjust their settings, MOMA even set up an energy-saving housekeeper to help users turn on electrical appliances at the time of energy sufficiency ａnd cheap price. The operation of the project shows that when the consumer knows the real price of the energy, it will naturally change the way of use. "

Under the arming of knowledge ａnd technology, private users save about 10% of energy consumption ａnd 15% of energy costs, while electric power providers can better manage network load. The results of the MOMA project provide a legislative basis for the establishment of elastic electricity price, the establishment of a single communication platform carrying smart grid ａnd intelligent electric meter.

High quality communication network upgrade power grid upgrading

The technical solutions adopted by the MOMA project also provide a new way for power suppliers to resolve power interruptions ａnd improve operational efficiency. In the United States, storms ａnd small animals seriously disrupt the power supply. A 2004 study by University of California at Berkeley showed that the annual loss caused by power cuts in the United States amounted to 80 billion dollars.

The Char Thanou Fagafaga Electric Power Commission in Tennessee provides electricity for residents of about 1500 square kilometers. According to the data from Berkeley University, the annual blackouts will cause about 100 million US dollars loss to the service area, but the Electric Power Commission is not a typical US energy supplier.

In 2012, under the stimulus of the US $115 million 500 thousand recovery program of the energy department, the Char Thanou Fagafaga Electric Power Commission completed highly automated upgrading of smart grid, which equipped smart sensors, switches ａnd meters for the power grid. Like MOMA project, its power grid is based on high quality communication network. Char Thanou Fagafaga Electric Power Commission has chosen optical broadband network to load consumers＇ three networks in one service.

David Wade, executive vice president of the Electric Power Commission, said: "this should be the way of the future grid. No other utilities in the US can achieve such high automation level in the future." Wade said. But everything depends on communication capability. Char Thanou Fagafaga＇s power grid ａnd optical fiber network seamlessly connect, which makes Char Thanou Fagafaga the best place to achieve our future vision.

Now, in Char Thanou Fagafaga, if a car hits a pole, the power Com中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜mittee＇s power grid will be "self repairing". 1200 smart switches in the power grid can determine the location of the interruption by the optical fiber network ａnd switch to the power supply. In February 12th, Char Thanou Fagafaga suffered the most severe snowstorm in 20 years. The power supply of 40 thousand residents recovered automatically, ａnd the power of 36 thousand other residents was restored to normal within 3 days with the help of engineers.

The Power Commission estimates that the restoration of electricity from the 76 thousand residents will take 8 days. Since 2012, power outages in the region have been reduced by 50%~60% ａnd $50 million a year for local expenditure. The Power Commission itself has also greatly saved costs: the cost of saving up to $10 million 500 thousand in maintenance, asset management, door-to-door services ａnd theft.

Automated solutions create more intelligent power grids

The end user＇s electricity theft still makes the power suppliers headache, seriously affecting the gain of profits. HUAWEI, a technology company from China, designed different solutions for the new challenges faced by the power supply, including large-scale network infrastructure projects, including the core platform for dealing with local issues such as stealing electricity.

According to HUAWEI, the situation of consumers stealing electricity in Nigeria is particularly serious. Power providers have been unable to find out the cause of the problem. Up to now, the number of users who can not collect accurate energy consumption data has exceeded 80%.

To solve this problem, HUAWEI is preparing to install an automatic meter reading system covering 400 thousand local families in Nigeria, which supports high-speed data connection, ａnd deploys new sensors ａnd controllers at the same time. After the system is deployed, the customer＇s meter will transmit data every 15 minutes to the local operator, enabling the operator to obtain real-time data on electricity.中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜

"The system will effectively improve the turnover ａnd profit of the power company," said He Dabing, President of HUAWEI BG Marketing ａnd the Sales Department of the solution. The key to efficient power production ａnd distribution is the instant communication system ａnd the reliable maintenance of the power infrastructure. It can realize early warning, real-time fault location, self repair ａnd effective load 中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜

中兴ZXDU58 W600 V4.5R01M01室外壁挂式电源柜