Simulator Quick Start

7/25/2019 Simulator Quick Start

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2001SouthFirstStreet

Champaign,Illinois 61820

+1(217)

384.6330

PowerWorldSimulator

QuickStartGuide


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22013PowerWorld CorporationSimulatorQuickStartGuide

Thisquickstartguideisintendedtoprovideabrief

explanationof

the

essentials

to

analyzing

power

systemswithPowerWorldSimulator

Itisnotcomprehensive

Greater

detail

is

available

in

our

full

length

training,onlineorinperson

Otherquickstartguidesdiscussspecificadvanced

featuresof

Simulator

Formoredetails,visithttp://www.powerworld.com/training/onlinetraining

Purpose


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Openingapowerflowcase(raw,epc,pwb)

Solvingacase

Browsingpowersystemelementswiththe

Model

Explorer Onelinediagrams

LimitMonitoringSettings

Outline


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PowerWorldSimulatorcanopenfilesinthe

followingtext

based

formats:

SiemensPTIPSS/E

*.rawfileextension

CommonwithFERC715filingsandISOcases

GEPSLF

*.epcfileextension

CommonintheNorthAmericanWECC

Otherspecific

formats

for

real

time

EMS

models

Simulatoralsohasaproprietarybinaryformatwith*.pwbextension

Openingan

Existing

Power

Flow

Case


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ClicktheFileMenuintheupperleft ChooseOpenCase From

the

drop

down

box

in

the

lower

right,

choose

PTI

RawData(.raw)

OpenthesamplecaseMidwest.raw(availablefromthePowerWorldtrainingwebsite),oropenanycasethat

youneed

to

analyze

Example


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Forthedatainapowerflowcasetobe

consideredvalid,

aset

of

non

linear

equations

mustbesolved

First,opentheMessageLogfromtheTools

ribbontab

(Tools Log)

Solvingthe

Case


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Next,chooseSingleSolution FullNewton,also

on

the

Toolsribbon

tab

Aseriesofnestedloops

shouldsolve

and

asuccessfulsolutionshould

bereportedintheMessageLog

Ifthe

solution

is

successful,proceedtoslide15

Solvingthe

Case


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Thecasemaynotsolveif:

Itwas

not

solved

by

the

entitythatcreatedthefile

Itwassolved,butwith

differentcontrollersettings

thanthe

Simulator

defaults

Therearecertainkindsof

dataerrors

Ifthecasefailstosolve,

youwill

see

amessage

in

thelogandapopup

window

Whatif

the

Case

Does

not

Solve?


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Unlessthecasewasnotsolvedbytheentitythatcreatedthe

file,this

will

normally

work

ChooseTools RestoreStatebeforefailedsolutionattempt

OpenTools Simulator

Options Checkboxes

DisableAutomaticGenerationControl(AGC)

DisableSwitchedShunt(SS)Control

DisableLTCTransformerControl

Disable PhaseShifterControl

ClickOK,thensolvethecase

(SingleSolution FullNewton

)

Tryto

Solve

with

Controllers

Disabled


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TurnontheSwitchedShuntControllersFirst(unchecktheboxinTools SimulatorOptions)

SolvePower

Flow

(SingleSolution FullNewton)

ThenturnontheLTCs

SolvePowerFlow

Then

turn

on

the

Phase

Shifters SolvePowerFlow

Ifthepowerflowfailstosolveatanyofthesestages,itislikelythatthecontrolleroptionwasnotappliedinthe

original

solution Restorethesystemstate,uncheckthelastoption,andresolve

Youmaystilltryenablingtheothercontrollers

NowRestore

the

Voltage

Controllers


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BeforeyoutrytoenabletheAGC,ensurethat

thecase

was

truly

solved

with

AGC

control

Thebestwaytocheck:

OpenModelExplorer(CaseInformation Model

Explorer)

OpenthefolderAggregations,thenchooseAreas

Look

at

the

ACE

MW

columnIfvaluesareverylarge,thenthecasewasprobably

notsolvedwithAGC

AutomaticGeneration

Control

(AGC)


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IftheACEvaluesaresmall,youcanprobably

enablethe

AGC

and

solve

the

case

Otherwise,youcaneitherleavetheAGC

disabled,orenableitandadjustthearea

interchange

AutomaticGeneration

Control

(AGC)


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EachAreacanhaveanexportspecifiedwhichdoes

not

have

a

receiving

end

specified TheAreadisplayintheModelExplorerincludesa

columnUnspec.MWInter.,usuallyonthefar

right Theseunspecifiedvaluesshouldsumtozero.

Iftheydonotsumtozero,youhaveanexporttonowhere

Whenthisoccurs,theAreawiththeslackbuswillbeturnedoffAGCandallunspecifiedinterchangewillbesenttotheislandslackbus

AreaUnspecified

MW

Interchange


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IntheModelExplorer,Openthefolder

Aggregations,then

choose

MWTransactions

OntheCaseInfoToolbar,chooseRecords,ClearTransactionsandautoinserttieline

transactions Nowtryto

reenable

AGCand

resolvethecase

WhatifInterchangesDontLookRight

orACE

Values

are

Large?


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Thereare3primarywaystointeractwiththe

powerflow

case

ModelExplorer:spreadsheetliketabulardisplays

Busviewonelinediagrams(automatically

generated)

Otheronelinediagrams(usergenerated)

We

will

next

examine

the

use

of

the

Model

Explorer

Examiningthe

Data

in

the

Case


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ChoosetheCaseInformationribbontab,then

ModelExplorer

ModelExplorer


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ModelExplorer

Note:Theoptions

available

on

the

CaseInformation

rightclicklocal

menuarealso

availableon

the

CaseInformation

Toolbardirectly

abovethedisplay

RecentTabsExplore

Pane

Fields

Pane

Toolbar

Object

Typeswith

nodata

grayedout


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Theleftsideinitially

contains

the

Explore

pane Spreadsheetlikecase

informationdisplaysare

organizedinfoldersthat

canbe

expanded

or

collapsed

Clickonanitemwitha

gridsymbol

to

open

the

correspondingcase

informationdisplay

ModelExplorer


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Onceopened,a

case

information

displayis

containedwithin

itsowntab

Tocloseacase

information

display,clickits

X

ModelExplorer


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ManyfunctionsinCase

Information

Displays

canbeaccessedby:

CaseInformation

Toolbar

LocalMenu(rightclick)

Mouseoverthe

buttonsonthetoolbar

foradescription

of

theirfunction

Toolbarand

Local

Menu


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Alldisplayshaveaset

of

default

fields Thesecanbe

modified

fromthe

Fields

pane,

or

withthe

Display/Column

optionson

the

toolbarorlocal(right

click)menu

Columnsand

Appearance


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Display/ColumnOptions

ColumnOptions

Fieldsorganized

byfolder

Graytextmeansthefield

isalready

shown

ColoredDotsrepresent

thefieldtype

Hintsautomatically

appeargivinga

descriptionofthefield


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ColumnOptions

ChoosefieldsfromtheAvailableFieldslist. Thenleftclickanddragintothe

Showthesefieldsinthisorderlist

Useawildcard

findfor

aparticularfield

Changeattributesof

thedisplay

columns.

Also,usetoolbar

buttons

Alsocanclickthe

Add or Remove

Buttonsto

modify

the

fieldsshown

ClickMoveUpand

MoveDowntochange

theorderofthecolumns

Fieldsgrayed

outifalready

indisplay

Numberof

frozencolumns


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DisplayOptions

Defineacustomfilter

Alsoavailableviaa

toolbarbutton

Autoresizeallcolumn

widths.

Alsoavailable

viaatoolbarbutton

Changecustomfonts

androw

heights

Resetallvaluestodefault

Willdisablethearea/zonefilteringfora

singlecaseinfodisplay.Alsoavailable

viaatoolbar

button


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Tosortacolumn,leftclickonthecolumnheading.

Click

again

to

sort

in

the

opposite

direction SHIFT+LeftClickwillsortbyAbsoluteValue

SimpleSorting

SortedDescendingbyGenMW Note:Arrowshowingsort

direction

AbsoluteValueSort

Clickhereto

removesorting


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Fontcolordenotestypeof

cell

Black:readonly

Green:togglebetweena

setofallowablevalues

(doubleclick

or

click

drop

downtochange)

Blue:userenterable

Red:valueatalimit

Gray:disabled

(mouse

over

forexplanation)

Purple:specialorcalculated

ColorConventions


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FilteringcanbeappliedtoAreas,Zones,andOwnerstosimplifytheCaseInformationDisplaysto

showonly

parts

of

the

system

of

interest

SelectArea/ZoneFiltersfromtheCaseInformationribbonorthecaseinformationtoolbar

Example:set

all

areas

to

NO

exceptafewofinterest ClickSetallNoonAreastab ToggleNOtoYESintheShown

columnbydoubleclickingthecell.

AnelementwillappearinCaseInformation

Displays

ifits

Area,

Zone,andOwnerShownfieldsareallsettoYES

Area/Zone/OwnerFilters


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Anotherusefulwaytointerfacewithapower

systemmodel

Autogeneratesonelinediagramsateachbus,

oneatatime,showingalldevicesconnectedto

busand

all

flows.

ChoosetheCaseInformationribbontab,then

BusView

BusView

One

Line

Diagrams


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BusView

One

Line

Backand

forward

buttons

BusandFlow

information

Clicklinksto

jumptonewbus

Enteranameornumber

togotoabus Clicktofindabus

Leftclickcircuit

breakerto

open/close

Rightclickelements

forinformation


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NumberofTiers specify1or2

ShowHints

As

you

move

your

cursor

over

an

objectitwill

show

information

ShowSerialBuses Busesthatareinserieswillbecascaded

ShowEquivalentLines

Change

to

hide/show

equivalent

lines RepresentMultiSectionLineObjects

ShowendpointsofMSLineswithoutintermediatebuses

OpenMultipleBusviews SpecifywhethertocreateanewBusViewwhenanewoneisrequested.

Choosing

Prompt

means

you

will

be

prompted

each

time

IncludeFieldLabels Adescriptionofwhateachfieldiswillbeshown.

ChangeBusLinkColor Thefillcolorofthebuslinkscanbechanged

BusViewOneline:

ClickOptions

>to

reveal


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Customonelinediagramsmayalsobecreated

and

edited

by

the

user Onelinediagramsarewellsuitedforwide

area,regional,orlocalpowersystem

visualization Onelinesneedonlybecreatedfortheportion

ofthesystemofinterest,butSimulatoralways

modelsthe

ENTIRE

system

in

calculations

Simulatorautomaticallylinksdiagramstotheopenedpowersystemmodel

OneLine

Diagrams


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Onelinesmaybegeographicorschematicin

nature Forgeographicdiagrams,Simulatorhasbuiltin

bordersforUSstatesandcounties,Canadian

Provinces,and

entire

countries

for

the

rest

of

theworld

For

schematic

diagrams,

simply

omit

the

bordersandarrangesystemelementsas

desired

OneLine

Diagrams


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ChoosetheFileMenu,thenNewOneline

Simulatorwill

automatically

switch

to

Edit

Modeifnecessaryandopenablankwindowto

drawobjectsontheonelinediagram

CreatingaOne

Line

Diagram


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FromtheDrawRibbon,

choose

AutoInsert

Borders

SelectRegion

Stateor

County

for

US

ChooseMapProjection

(onceset,donot

change) ClickOKtoinsert

InsertBorders


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PanandZoomtonavigatearoundtheonelinediagram

Panning

Clickanddragtheonelinebackground(notonanyparticularobject)

UseArrowKeys(up,down,left,right)orHome,End,Page

Up,Page

Down

to

move

more

quickly

Zooming

GroupofbuttonsontheDrawandOnelinesRibbons

ZoomInwithCtrlUpArrowkey(orCtrlPageUptozoommore

quickly)

ZoomOutwithCtrlDownArrowkey(orCtrlPageDowntozoommorequickly)

Panningand

Zooming


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UsetheDrawribbontoaddobjectstotheoneline

Dragand

drop

pallets

are

availableforseveralobjecttypes

Buses(common)

Substations

Areas

Zones

ChoosePaleeforBuses

Dragand

drop

buses

from

PaletteontotheDiagram

ObjectPalettes


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Objectsmayalsobeaddedtothediagram

individually Objectsaregroupedby

type,asintheModelExplorer

Forexample,

choose

NetworkBus,thenclickonthediagramwhereyouwouldliketoplacethebus

Ifnecessary,

change

the

busnumberandotheroptions,thenclickOK

IndividualInsertion


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Thelayoutofaoneline

diagramisgenerally

determinedbythe

locationofbuses,

substations,areas,or

zones

Oncetheseareinplace,

otherobjectsthat

attachedto

them

may

beautomaticallyplaced

AutoInsertion


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Youcangenerallyrelocateorrepositionobjectsby

clickingand

dragging

Certainobjecthandlesmaybeusedforstretching,resizing,or

rotating TheFormattinggrouphas

optionsforchangingtheappearanceofselected

objects Ifyoumakeamistake,

chooseUndoOneline

ArrangingObjects

on

aDiagram

GreenCircle:

RotationPoint

BlackSquare:

ResizeHandle

GraySquare:

Forlooksonly


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Itisoftendesirabletochangethepowersystemloadfrominitiallevelsinthepowerflowcase

Itisusuallyagoodideatobeginwithacasewithloadasclosetothedesiredlevelaspossible

Smallchanges(about+/10%orless)canusuallybeperformed

without

too

much

manipulation

Largerchangesoftenrequireadjustments,suchasvoltagecontrollersettings,areatransactions,generator

unitcommitment,

and/or

the

use

of

the

DC

power

flow.Thesetopicsarediscussedingreaterdepthinourfulltrainingcurricula.

ScalingLoad


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Beforescalingload,itmaybedesirabletochangesomedefaultsettings

*.rawand

*.epc files

commonly

use

Area

Slack

controlAreaSlackmeanschangesinarealoadareabsorbed

by

generators

at

a

single

bus,

the

area

slack

busThismaybeusefulforholdingconstanttheoutputof

allothergenerators,butmaynotberealisticwhenmakinglargechangestoload

ParticipationFactor

control

may

be

used

to

distributethemakeuppowerrequirementacrossthesystem

AreaAGC

Settings


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IntheModelExplorer,openAggregaons

Areas Ifdesired,toggletheAGC

StatusfieldtoPart.AGC Hint:clickanddragfrom

the

lower

left

of

a

cell

to

fill

othercellswiththesamevalue

AreasthatareinitiallyOffAGCshouldnormally

remainOff

AGC,

as

they

oftencontainislandslackbusesorswingbuses

ParticipationFactor

Control


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Tosetgeneratorparticipationfactors,fromthe

ToolsRibbon,

choose

Other SetGenerator

Part.Factors

Thedefaultoptionsareusuallyappropriate

ParticipationFactor

Control


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Loadsmaybescaledindividually

from

ModelExplorerNetwork Loads

usuallyedittheSMWandSMvarcolumns

OrinbulkfromScaleCaseontheTools

Ribbon

ScalingLoad


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SystemScaling

Display

Choose

objectto

scaleby

Entereither

ascaling

factor

Ordirectly

enteranew

value

DoScalingscales

thevalues,but

leavesdialogopen

OKalsoscalesthevalues,then

closesthedialog

Selectspecific

objectsto

scale


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ScalebyArea

Chooseoneormore

areasby

toggling

Scale?fieldtoYES

Specifynewloadwith

either Scalingmultiplier,OR

NewMWvalue

ClickOK

ReSolve

the

Power

Flow(SingleSolutionFullNewton)

ScalingExample

NOTE:With

Participation

Factor

AGC,

it

is

usuallynotnecessarytoscalegeneration;this

willoccuronpowerflowsolution.However,

youmayoptionallyscalegenerationonthe

SystemScalingdisplay


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WiththeACpowerflow,severaliterationsofpartialscalingfollowedbysolvingthepowerflowmayberequiredtoachieveadesiredload

WithParticipationFactorAGC,itisusuallynot

necessary

to

scale

generation;

this

will

occur

automaticallywiththepowerflowsolution.

Youmayoptionallyscalegenerationby

Entering

aScale

by

factor

or

New

Value

for

Generation,OR

ChecktheboxScaleGentoKeepACEConstant

ScalingNotes


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Mostpowersystemsanalysistoolsmakeuseoflimitstodefineboundariesofsafe,reliableoperation

Definesettings

for

monitoring

limits

byselectingtheToolsribbontab,thenLimitMonitoringSettings.

Bydefault,ALLelementsinthepowersystemare

monitored

UseLimitMonitoringSettingstoexcludepowersystemelementsthatareofnointerestforaparticularstudy

Different

Line,

Interface

and

Voltage

limits

can

be

assignedto

each

Limit

Group,

and

each

device

within

a

LimitGroupwilladheretoitsownLimitGroupSettings

LimitMonitoring


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Monitoringmaybedoneonbuses(voltage),lines(MVAorAmps),transformers(MVA),interfaces(MW)

Anelement

is

monitored

only

if

ALL

of

the

following

conditionsaremet:

ItsMonitorfieldissettoYES

Its

assigned

Limit

Group

is

Enabled

ItsAreasReportLimitsfieldissettoYESanditsnominalkVisbetweenitsAreasReportMinkVandReportMaxkV

ItsZones

Report

Limits

field

is

set

to

YES

and

its

nominal

kVisbetweenitsZonesReportMinkVandReportMaxkV

LimitMonitoring


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LimitMonitoring:

Key

Components

Monitored

element

types

ElementsMonitor

Field(YES/NO)

ElementsassignedLimitGroup

(allinitiallybelongtoDefault)

Areaand

Zonesettings

Limit

Group

settings


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512013

PowerWorld CorporationSimulator

Quick

Start

Guide

Buses,Lines,Interfaces,andNomograms showtheindividualelementsofthepowersystem

importantcolumns

Monitor:specifieswhethertomonitorthatspecificelement

LimitGroup:specifiestheLimitGroupthattheelementbelongsto

AreaReportingandZoneReporting Specify

which

areas

and

zones

to

monitor

SpecifynominalkVrangetomonitorineach

Modify/CreateLimitGroups Specifylimitlevelsandratingsetsforlines,buses,and

interfacesunder

normal

and

contingency

conditions

Mostfieldsalsopresentintheupperrightcornerofthedialog(LimitGroupValues)

LimitMonitoring:

Tabs


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522013

PowerWorld CorporationSimulator

Quick

Start

Guide

UsetheBrating

setforLines&

Transformersduring

Contingencies

Ignoreallradiallinesandbuses

ReportLimitsonly

inafewareas,at100kVandabove

LimitMonitoring

Example

Simulator Quick Start

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