Advanced Distributiom Automation is a temn coined by the IneliGrid projeat in North

America to descrbo the entension of intelligeat control over cloctrical power grid functlions to

He distribution kevel and beyond.I is relatd to distribution anutomation that can be nablel vie

The mart gid（）ia bpically saparnted logically into tsasmision ayitens aad（）

Blectrie powar tanamision myatens typicaly opcnte above 110kV,wheras Blecticty

Distribution syatems opente（）.Normally,electrie uililes wih SCADA sytens bave

Atensive control over transnissicm-lovel egufpnent,and increating control over ditrtbutlon-

Level cquipment via distibution automation.However,they ofen are unsble（）uch ae

Distributed energy resources,buildings,and homes.It may be advasayeous to eatead coatrol

Networks to these aystems（）.

Elecrhe power is s most convnicnt,ckean,safe,and uscful fomn of onorgs wlich atpplics

The maior nortion of enerov nenda nf a mnom antev.At the tent rie 11

Ue yu punuun ut mey neeas ot moaan socty.At ne present tuis（）

Neweworthy.Eloctric power is so vital to the livee of people thut（）oauses tneouveniencn,

Lous of protducton,and dmger to many iadividruls who are tn operation (auch as aadise

Opentlen)in hospital.A prolongeod bickout,which is iaevisble when a gpowing load is

Combinod with no geoeration aditions,cculd kad to（）.With the doveloping of insdhustry

And hmpvoving in living sandardt,tho etecrie power denand it growing continuously and （）

Is mach geater than tat of all other forms of energy.Now（）has becn one of the

Indications of modemization of a country.

Bledicl energy ooneratirn refen to the pocess of ratrutng ancrty ued throuyh vaious

Means.Many of these methods for（）;tuming down the thermostat,turning off tho higdts

Wben kaving the room,ar switching off power stipe when not in use sre all eaamples of this

Homes,businesses or power companies（）such as wind or solar energy,are slao ekamples

Of eloctrical energy conservation.Many traditfonal electrical power plants are coal-fred,which

Cuntriutes grenhouse guces to the atmoaphere,（）;this is just one seson that enrgy

Conservation is impartmt.

For many people,ekectrical cnergy conservalon begins at home.Not only is this good for

The environment,but it can also significantty rodoce the amount of a mouthly elecric blll.Some

Of the sinplest steps to energy oonservation inchade switching taditional Highrbufhs to oompact

Fhuorescent (CFL)bulbs,ar（）Mating tare appliances are efficient,md that windows and

Doors are well sealed aginst the outdoors,ane other eamples of eaery conservaion Poople（）should also look for power strips that can be swiched of.

Wind power is cot efictive.It ia（）evailable tday,wit power pices offend by

Nowly builk wind farns avensging 2 cant per klowat-hour,depyeading on tte wind resouree sad

He paticulr projet)financtng Even witout govenmcat sbulies,whdd powe tae low cost

Fuel（）

Wid tartines can be built on existing farns or mnches.This greatty boaefis the escaomy

In runal aeas,where most of the other power raourcen,（）,we aho foand Famart and

Mnchers ean continue to work the laod booause the wind turttoas use ouly a frasction of the

Scrage.（）mske rent payncatt to the firmer or mcher fr the aae of te lind,providing

Laudowaers with aditiooal income.In 2015,nnunl land lease payerats in the Unled Suntes

（）toal S2?million.This additiooal income provides the agpicultursl comasnity an avenue to diversify revenue nd roduoe relianoe oa uncattin oommodity prices.

The American ides of customer service is to m the center of attoat

People going shopping in America can eapect to be treated with remact（）.When

Customers get to the store,they are troatod as homoted guosta.In mont stons,tho sigus ttat lsbet

Each departnent malke shopping a brecze.Customers wually don't have 4o ak（）,since

Prices are clearhy marked

When customers are ready to check out,they find the meareat and shorteat caeckout lane.

Afer they（）their purchases,customere reooive a amile and a warm"thank you"from the

Ckerk Many stores even allow cuswomerm to take their shopping carte out to the parting lot That

Way,they don't have to carry heavy bage out to the car.

In America,customer servlee continoes long（）.Miny prodocs come with a money-

Back guarantee.If there is a problem with the prodoct,curtosners ean take it back.（）wil

Often allow thean to exchange tho itenn or retarn it for a fall refind.

Hydraulic,（）,goothermal,tide power plants,and ao on.

Apowerplant tasfoms primary eoczy souree ito dectit power nd （）.

A co-gcoeration plant is the power plant that mot only generalee olectricity but alao

（）.

No rmally,in sek power plant,following factors should be fally

Conmtidered:Power net plan for medium and long ten（）,Thansportation comdition;

Water sounces;Local natural camdition and environmental protection

According to the common stipulation for a newty schodulbd power ptant,the total capscity

Ina（）is in the mnge of 1200MW to 3600MW,the nupber of unlits should not exceed

Six and the ranks of capacity should not exreod two.

Fur mny yans,Solr Ehrgy has been the power mpply of choice for tathutriatl

Pliasion,where power is raguired （）.This mans tn thee splkestions tat solar powe

Is oomomie,without staity.Mont tytans in iandivital uses regire a few tilowan of power.

（）is fat it is higbly reliabte and roqutres litte maintenaace so it'iteal in plaoes that

Ar had o gt to.Sahr metgy ia oftan uned to（）ad ccmouca protection syteae (asd

On impreasing a cunsntl)for pipslios,well hea,and bnidges or dher strutures.Aa befoe,fur

Lager clccticalloade it can be cot dfective to ccnfigure t hytrid power eytan thtlinle the

PV（）

Solar energy can also power area lighting to enable more outdoor activitles afer dak or

Mgrove seurity,and to ilhuntnate igos a（）

Many lnge clities are anything but beaut

However.（）.muwuvet;

If poople want to satve the problem of waste,（）.Thay mnst wock out wayr of mating

Use of good things which are just thrown sway as wastr.When i car gts too old,it may not nn

My mone But ifthe metal that the ar was made of is sill god,（）.When e botle is onpty.

It goes out in the tash.But bortle ghas can be ground into and and used to pave treet.Beites,

Grhuge fom food can be changod into farilisr.But fint yon have so pick out all te glan and

Metal.

Purthermore,gatbage can also be a gpood source for making builting blocts,which ae then

Covered with concrete.Now,（）.Some day,people wil watch fhns in a gpat ciaene which

Has been built out of gatage,Future buildings,roads,and cifies may be made from gatbage.But

So far,（）

A vegctanrian dit is ofan pruirod for is helth beneft.Vegstarims unually hive lower

Lewlb of heat dicse and（）tan pesple who et ment.What most people are hes ware

Of,howeve,ne the efftcn that a vigetarin diet ean have an the caviroument.

Many peaple now see the beadfits of awitching to a vegcarian dit,（）.but abo

Because it plays a vial role in protecting the environmeat.Howevet,soone nutritionirte advie

Aginst swiching to toalty trie vagsarian,or vign,dit （）o be defciant in mny of

The necesary viumins and mincrals our bodics nool.

Today,many people know that （）,and to use the earth's reaouroas more efftcientty.

Now move people mdrstund thas（）and for the harman mce to survive,more of w will

Nesd to booome vegetarian.

Electiciy in a remote locatioa mighr be provided by a simple distibution gid linking*

Ceatrnal generacr to bomes.The trditioaal paradigm far（）in developed countries is mnore

Complan.Gemrsting plants are unully located（）,and way tom beavily populsted ares.

Thay ane usually quite hrge in onder to take adrantage of the acomomles of scale.The electic

Power which is generntd is stepped up to t higher volage at（）.The tanamiston ostwok

Wil move the power long distunces-often across stto lines,and somatimer aeross intrnational

Boamdaries until（）

Upon arrival at the aubstation,the power will be sopped down in voltage--from a

Trnsnission kevel volag to a disributian level voltage.At it erin the ubstafion,t eales the

Distribution witing,Finally,upon arrivnl （）,the power is stepped down astin from the

Distribution vottage to the required servfee voleage.

Solar eaergy is lauded at an inexhaustible fuel sourctce that is pollution and oflean aoise froe.

The technology is also venatile.For examphe,solhr cells geperste enersy foe far out plaom（）and cabins deep in the Rocky Mountatns as easily as tbey can powar dowulowo（）

But swur eoey doeant wort at nittwitout sstorse daviee（）,and cbuty weathe

Can make the technology unreliabie during the day.Solar teclnologpies ane also very eapeasve

And reaquire a lot of land ares（）at stes usefal ao lot of poople

Despite the dawbacks,solar energy use bag aunged at about 20 peroent a yoar ovar the pan

Is yann,thnks to mpdly ialing prics snd gin in efhtcicney.hgs,Gemany nd ta（）

We mtjiar martete for solr oall.Wih tac iacadtive,adar oletsy am ohan pey fer iaed in

Five to ten years.

The bouy tht is nerest to tre Barth is he moon（）,Due mtelite is called nstunl

Sme lian.Man made spcocnft whlch circle the Earth an calkd aricisl aelies.Naturl s

Well ss atifcial saelhtes circle the plaoets in s definite path ar atbt( 教 道 ) （）

All the bodies in paoe like the moon,the plancts aod the orr alto exat an athactive force on

Ohjocts.（）.The moon's gavitational forve is only ono eixth thas of the Earth's.The Barth's

Kepo us snd everything othe on Eath fomf wy to*

（）.There are many arifficial satelites otiting arund the Barth.Some artifcial stelhites

Have boen seat up to arbit the moon and even the plmet Mim.（）

Regulato,（）The foot watr ato ngrulitor hae taree imput tipale dun lavl,sean

Bow and feed water fow.When the bolar tskas s load kas than 30%of the nted oan,onmly the

Dnum level sigpul is availnble.（）.Thoe foet waer ntomate rgulatcn fr s once troup

Boiltr keep the trantion zone outlet tean tempernature las supeteated wihin allowable mngs.

And makes the feed-water flow match with the steam fow and keep stesdy.

The steam temperature antomatic regulating sywon of boiler is the adomatic rogulating

Devioe to kesp the boiler superheatr outlet steam tempenture and the reheater outst scam

Temperature within allowable Boctuation around the mtod value.（）.The rcheater outle

Steam temperature can be regulated by adjasting the fhue ges dampers ar by adjusting the titing

Ngle of the bumen,if pexessary,（）.For the onoe-through boiler,we muast toep tho fuet

Water ratio of the boiler to control auperbeater outlet temperature to inaze the requlred sabllity

Of mid-point tempcrature.Additicually,（）,we can perform tho regulation of the

Superheater outlet temperatire.

Many people dislike walking to the banlt,atanding in long lines,and ruaning out of chachs.

（）thair bumk limited hours,too.They want to do some banting at niasht,md oa weknd.

Foc mch pooplk,their problems mre ove.Now they ae able to do thotr bnking（）,and

Hour of the day,and day of the week.

Most banks se having "online branchos,"ar Imtermet offios,which means that poople can

Take care of much of their banking busines（）.This proceas is called inteactive baaking.

At these ouline branches,（）all their socoumts,move money between accounta,pply fora

Loan,and gut currout infornation oa prodicts（）.Castomre are alao able to pay thetr blle

Electronically,and even -mail queatious to the bank.

E aim of introducing market

Through equitable competition,therety promote evomomic developnaat.

Like other markets,it needs（）where the aellers and buyers (auppllen)can trade

Electricity,and needs（）where the satppliccs can sell electricity to final castoruners.As in

Other markets,the participants need （）.Compotition is introdrecnd into generation and reail

Suppliod to customers.Cuntomers are free（）.Ifa customer chooes to buy tlocaricity in ae

Retail markot,he should be able to choose electricity upply tiom one of sevenl competing

Retailers.If a customer decides to purchase diroctly from the wholessle market,he will need

（）.Power generation is disaggrogatod into separato companies to ensure:adequate

Competitian

Puel oalls are devicos that when a fuul such a hydrogee ar tydrogsa-lcheompounds md

Oxygen are aupplod to matrislh annged like the mode snd cathode of s coaveatheaal batiary,. combine to convat chenkeal nergy directly into alectical energs.Ualike oaeventioual beheries where the conversion of chonial to dlactrical cnsngy reguline oaly the dloing of a olrouat between the cathode and anodo to prodaco and electieal curet,（）.These oell reptie the

Fuel and oxygen that will produce the cbemical reactious taat prodnsce an dlectical output Foel cells hive been made that will sapply powee in the megrwat mnee,ad（）Suc ols arenot yet widety usd on power syatens,but（）to snpply finl cell （）power to iolated losds.As thaare normally roquired.Inverters are uaed to（）when and AC output is datirnd.

Voluns,anthalyy and eutopy are the atos

Inhy ased Heat expansion refen to the plmost of the sbs case tn

With（）in the sbseace of（）Thae ae tree basite ppee of（）,aosy.odatien vectios and nditian The frs lhw of themotpmatics gpa llte thir:te bas iapato a turmodyesoio mtam oqual to the am af the increasein（）of the syitem and the work done to the oeaide

Power betwen power netwoter in ondar to itin the genertian coasunplion balnce ar the mwpy tnd balnse betrn（）Rowr trasnlaim i ounplesd by

Bsaiou,（）.The thasaiston Ihe mainly acasit of tr tassoten coadtn

(cables),poles or towers,insaiators,ovethead ground wircs,and grounding devics.The（）cm rduce the line foas nd te volage dng,auane te pover quslity,nis ao ccomomy of （）The increate of tnamision line yolage can not oaly nie to amount of tanamited powet,but slao redoce the linse loas and Iine voltage drop,and improve the voltage quality.

America to describe the ertension of intetligent control over electical power grid fruactions

To the distribution level and beyond.It is related to distributioa automastion that can be

Enabled via the smart grid.（）is trpically separateod logically into tansmision

Systems and（）Bectic power tansmisioa ryitens ypically opente above I10kV.

Whereas Electricity distribution syitems opernae（）.Normally,clectrio utilitics with

SCADA systems have ertensive control over transmisrion-level oguipmaut,and increasing

Control over distrbution-level equipnentvia distribution automation.Howeve,they often are

Unahie（）uch as Distriluted energy rsource,buildinge,and homsa.It may be

Advantagcous to extend coatrol networfks to theso systams（）

A suddan change in the configuraiou of transmisslon atwrk caused（）or by the

Appearance of a faalt can canse a rapid surgo known as twitching overvoltage,which propagatee

Throughout the network.It is these switching avervollages which in geneal（）.Limitating

These overvoltages is of extremely importance,bocause they have tn important effect on bot（）

These svitching overvoluges can ocwr（）.If moe-atilting ctroat beaken is not used,it is at the instaat of cloing,and above all,re clouing of e line which has held a reaidnal

Chaigs.tht te ttuagss overvolhges wl ayper Thi waching orervoee i uealy inited（）.