model verification help files

7/27/2019 Model Verification Help Files

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Individual Source Control

Description

Input Parameters

Output Parameters

Individual

F PhV

SourcectrlPm

Vm

0 []0 [kV]

Vref = 1.0 puAref = 0.0 deg

Controlbus

RL

V F Ph

RRL

Description

This component is part of the Model verification library to control multiple sources in a

network. The Individual Source Control sets the Voltage magnitude, Frequency and

Phase angle of an individual source according to the Global Source Control component.The advantage of the Individual Source Control together with the Global Source Control

components is that once the network is constructed the user can easily switch between

different control modes without changing the input parameters of the different sources in

the network.

Comment [C1]: Hyper link requ

The Individual Source Control uses an integrator circuit to adjust the internal voltage (V)

and phase angle (Ph) of a source to match the reference voltage (Vref) and phase angle

(Pref) on an external busbar. The reference voltage and phase angle comes from a

previously solved loadflow.

SH

B

+

D- *

400.0kV

*Vm3 Phase

RMSI

1.0Vref P

Vbus

Vbus

f SH

*

Vre

Ph1sT

B

+

D-

PhaseDifference

10.0PrefPm


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The Individual Source Control component can be operated in four different modes ascontrolled by the Global Source Control component:

Frequency scan:The source voltage and phase angle are set to V = 0.0 pu and Ph= 0.0 deg.

Fault level:The source voltage and phase angle are set to V = 1.0 pu and Ph =0.0 deg.

Load flow:The source voltage and phase angle are controlled by their individualintegrators as shown above.

Fixed values:The source voltage and phase angle are set according to valuesfrom a list that are entered by the user.

More: Global Source Control

Input Parameters

General

Nominal Voltage

for Per-Unitizing

(kV,LL,rms)

REAL Constant Enter the nominal Line-to-Line RMS

voltage that will be used for per-unit

calculations [kV].

# of samples in a

cycle for voltage

Per-Unitizing

INTEGER Constant Number of samples needed for voltage

measurement. The Digital RMS Volt

Meter function is used to measure thevoltage. A typical value is 64.

Source frequency REAL Constant The source and measurement

frequency [Hz].

Initial Voltage for

Per-Unitizing

REAL Constant The initial expected voltage needed

for voltage measurement. The Digital

RMS Volt Meter function is used to

measure the voltage. A typical value

is 0.0.

Control input

variable name

Text The name of the variable that contains

the array of 7 values given by the

Global Source Control.

Source voltage REAL Constant The time that the source needs to ramp




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ramp up time up in [s]. A linear ramp is used.

Typical value for a 50Hz network is

0.06[s] and for a 60Hz network is0.05[s].

Display inputvalues

Drop List Enabled the display of the reference

voltage and phase values. NO/YES

Display output

values

Drop List Enabled the display of the voltage and

phase output values. NO/YES

Display refresh

rate

Real Constant Enabled when input or output display

values are visible. This valuespecifies at which rate the input and

output display values will be refreshed

[s].

Connected to a

node loop with

Drop List 3 phase or 1 line view.

Controller

Reference

voltage

(scaled)

REAL Constant The reference voltage that the voltage

controller will use to solve the load flow [pu].This value is scaled according to the Voltage

scaling factor in the Global Source Control.

Voltage

proportional

constant

REAL Constant Proportional constant of the PI controller that

the voltage controller uses to solve theloadflow.

Voltage

integration

REAL Constant Integrator time constant of the PI controllerthat the voltage controller uses to solve the

loadflow [s].

Initial voltage

output

REAL Constant Initial voltage output value of the PI controller

before it starts to integrate when it is releasedto solve the loadflow [pu or kV].

Initial voltage

units

Drop

List

The initial voltage output can be entered in

[pu] or [kV]

Voltagedisplay value

REAL Constant The voltage display value is the output of the

voltage controller and is updated during the

run. At the end of the run this value can be



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copied to the initial voltage output value to

speed up the initialization of the next run.

Once steady state is reached this value can bestored in the fixed value list for future use [puor kV].

Reference

Angle

REAL Constant The reference phase angle that the phase

controller will use to solve the load flow [deg].

Phase

integration

REAL Constant Integrator time constant that the phase

controller uses to solve the loadflow [s].

Initial phase

output

REAL Constant Initial phase angle output value of the phasecontroller before it starts to integrate when it is

released to solve the loadflow [deg].

Phase displayvalue

REAL Constant The phase angle display value is the output ofthe phase controller and is updated during therun. At the end of the run this value can be

copied to the initial phase, output value to

speed up the initialization of the next run.

Once steady state is reached this value can be

stored in the fixed value list for future use

[deg].

Fixed values

Fixed

Voltage #1 to

3 (check

Vunit)

REAL Constant Up to three voltage values can be entered. In

fixed value mode the selected values set will be

applied to the voltage output. The value will be

applied according to the Initial voltage unit as

selected above.

Fixed Angle

#1 to 3

REAL Constant Up to three phase values can be entered. In

fixed value mode the selected values set will beapplied to the phase output.

Output Parameters

Vm The measured bus voltage [pu].

Pm The measured bus phase angle [deg].

V The L-L rms source voltage [kV].


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F The source frequency [Hz].

Ph- The source phase angle [deg].


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Global Source Control

Description

Input Parameters

Output Parameters

Mo


Fr

Vo

de = 0 Freq scan

equency = 50 [Hz] 6

ltage = 0 pu, 0 deg

Time to enab

Time to l

Mode = 2


Frequen

Voltage

le = 0.2 [s]

ock = 0.8 [s]

Load Flow

cy = 50 [Hz] 6

= 1 [pu]

Mode = 3

Global Sour

Frequency =

Value set #1 : 1.

ce Control

50 [Hz] 6

Fixed values

0pu

Description

This component is part of the Model verification library to control multiple sources in anetwork. The Global Source Control sets the operating mode and values of the

Individual Source Control components. The advantage of the Global Source Control

component is that once the network is constructed the user can easily switch between

different control modes without changing the input parameters of the different sources in

the network.


There are four modes that control the output of the sources that are connected to theIndividual Source Control components: Comment [C2]: Hyper link requ

Frequency scan:When the Harmonic Current Injection component is used todetermine the harmonic frequency of the network it requires that all other voltage

sources are removed from the network, but there source impedance must remain

in circuit. This is achieved by setting the source voltage to zero.


Fault level:The fault level in a network is defined with all sources set to have amagnitude of 1 pu and a phase angle of 0 deg.

Load flow:The Global Source Control component allows the Individual SourceControls to set the internal source voltage and phase of the individual sources to

match the required busbar voltage and angles. The individual sources are lockedat the start of the run until the voltage settled. Where after the individual source

controls are allowed to integrate to preset voltage and angle values to match aspecific loadflow. Once the loadflow has reached steady state the individual

integrators are locked again to allow fault studies.

Fixed values:The load flow mode can be used to solve the voltage and phaseangles for different loadflows or at different voltages. The steady state values can


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be entered as initial values to speed up the startup process of the next run. Up to

three sets of initial values can be stored. The fixed values mode is used to select

between the different values.

More: Individual Source Control

Input Parameters

General

Control mode ButtonList

Select the required individual sourcecontrol mode.

Frequency REAL Constant Frequency of the reference signal for

phase comparison [Hz].

Time to enable

integrators

REAL Constant Enabled in Load Flow mode. Time toenable Load Flow integrators [s].

Time to lock

integrators

REAL Constant Enabled in Load Flow mode. Time tolock Load Flow integrators [s].

Voltage scaling REAL Constant Enabled in Load Flow mode. A voltage

scaling factor that is applied to all the

individual sources [pu].

Fixed value set # Drop

List

Enabled in Fixed mode. Select which of

the three fixed value modes is active.

Description for

fixed value set #1to 3

Text Up to three descriptions can be given to

identify the different fixed value sets.

This description is only used for display

purposes.

Output Parameters

The output is an array of 7 values, with the following description:(1) VsyncA- A per unit sine wave that gets updated every time step. This is used as a

synchronising signal for the Individual Source Controllers to use as a reference for the

phase angle.



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(2) VsyncB- A per unit sine wave, phase shifted -120 deg from the first reference signal,

and gets updated every time step.

(3) VsyncC- A per unit sine wave, phase shifted +120 deg from the first reference signal,and gets updated every time step.

(4) SH- In mode 2 and this signal is HIGH it allows the integrators to run free.(5) Mode- The required mode.

(6) Vscale- In mode 2 (load flow) this signal contains the voltage scaling factor and inmode 3 (fixed value set) this signal contains the fixed value set number.


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Three phase voltage measurement with

displayDescription

Input Parameters

Output Parameters

1.0 [pu]0.0 []

Bus400.0 [kV]

Description

The Three phase voltage measurement component is placed at the top of a busbar tomeasure the rms voltage magnitude and phase angle. The measured values are updated

during the run. The yellow block displays the busbar name and nominal voltage. The

phase angle can be synchronized to an external or internal reference signal.

More:

Input Parameters

General

Description TEXT Enter a description to be displayed in the

yellow block.

Enable

measurements

Drop

List

Select YES to enable the measurement

algorithm. If NO is selected thecomponent display only the description

and nominal voltage.

Nominal Voltage

for Per-Unitizing

(L-L,RMS)

REAL Constant Nominal voltage for display and per-

unitizing [kV L-L rms].


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FundamentalFrequency

REAL Constant Fundamental frequency is used to

calculate the voltage magnitude and angle

[Hz].

# of samples in a

cycle

REAL Constant Number of samples per cycle that are usedto calculate the voltage magnitude.

Initial Voltage (L-

L, RMS)

REAL Constant Initial voltage magnitude used for voltagemagnitude measurement [kV L-L rms].

Enable Voltage

display

Drop

List

Enable the voltage magnitude display.

Display voltage REAL Constant The voltage magnitude display value is

updated during the run according to theDisplay interval.

Enable Angle

display

Drop

List

Enable the voltage angle display.

Display angle REAL The voltage phase angle display value isupdated during the run according to the

Display interval.

Synchronisationsource for angle

calc

Drop

List

The voltage phase angle can be referenced

to an external source like the GlobalSource Control component or internally.

If external source is selected, an array

variable with a dimension of 3 is needed

to be specified in Voltage sync variablename. The variable requires 3 sinusoidalwaves that are 120 degrees phase shifted.

If internal source is selected the 3

sinusoidal waves are generated internally

and start at zero degrees at time zero.

Display interval

for voltage

REAL The interval at which the display is

updated. By increasing the display

interval the simulation runs faster. A

typical value is once per cycle [s].

Enable output Drop

List

Enable the voltage and phase angle

output.

Connected to a

node loop with

Drop

List

The component can be connected to a 3

phase view or single line view node.

Comment [C1]: Requires Hyper


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Output Parameters

V The measured bus voltage [pu].

A The measured bus phase angle [deg].


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Fault current

Description

Input Parameters

Output Parameters

13.22 [kA]

Fault Current2000ID 2

3

-54 [deg]

ABC

Description

This component is part of the Model verification library. It determines the fault current at

a busbar. The Fault Current component incorporates three breakers to ground that can becontrolled individually to calculate the 3-phase or 1-phase fault current magnitude and

angle. The 3-phase magnitude is calculated as the positive sequence value.

The component can be incorporated together with a multiple run to measure the fault

current at numerous busbars.

More:

Input Parameters

General

Fault

number

INTEGER Constant Enter a number to identify the fault. This

can be a busbar number.

Fault

location

variable

INTEGER Variable The Fault Current component is active if

this value corresponds to the Fault location

ID. Can be a variable when used with amultiple run with more than one Fault

Current component in the network.


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Fault

location ID

Drop List Select a number that will act as the locationID from the list.

Fault type

variable

(0,1,2,3,7)

INTEGER Variable The type of fault to apply. Can be avariable when used with a multiple run with

more than one Fault Current component in

the network.0 No fault

1 A-phase to ground

2 B-phase to ground3 C-phase to ground

7 ABC-phases to ground

Fault

resistance

REAL Constant Fault on resistance in [ohm].

Open

resistance

REAL Constant Fault off resistance in [ohm].

Display fault

current

(RMS)

REAL The display fault currentis the measuredfault current magnitude output and is

updated once every half a cycle during the

run [kA].

Frequency REAL Constant Base frequency used for angle calculations.

Display fault

current angle

REAL The display fault current angleis the

measured fault current angle output and isupdated once every half a cycle during the

run [deg].

Animation

state ABC

The animation state is used to display if the

A, B or C phase is faulted.

Output Parameters

The output is an array of 3 values, with the following description:

(1) Location The value of Fault number.(2) Current The value of Display fault current (RMS)[kA].(3) Angle The value of Display fault current angle[deg].


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Power flow

Description

Input Parameters

Output Parameters

10 [MW]

10 [MVAr]

5 [MW]

15 [MVAR]

P2 Q2

10 [MW]

10 [MVAr]

10 [MW]

10 [MVAR]

5 [MW]

5 [MVAr]

5 [MW]

5 [MVAR]

P1 Q1

DescriptionThe Power Flow component is part of the Model verification library to display the power

flow in a network. Target power flow values and a margin can be entered to allow the

component to change the color of the back ground. If the values are with in the margin,the background is white. The background is red if the value is higher and green if it is

lower than the target values. By setting the target values to zero disable the comparison

for that measurement, but the measurement display is still active.

The Power Flow component inserts 0.001 ohm resisters between the FROM nodes andthe TO nodes to measure the power flow. The component can be used in a 3-phase

system or a 6-phase system or a combination of 3 and 6-phases. Example a 6-phasedouble circuit line can be connected to a 3-phase busbar, using the Power Flow

component.

More: Real/Reactive power meter

Input Parameters

General

Display interval REAL The interval at which the display is updated. By

increasing the display interval the simulationruns faster. A typical value is once per cycle [s].

Display Real

Power

REAL The measured real power value is updated during

the run according to the Display interval[MW].


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Connection

nodes

Drop List The power flow can be measured where theFROM nodes and TO nodes are connected as

follow:FROM = 3, TO = 3

FROM = 3, TO = 6

FROM = 6, TO = 6

Display Reactive

Power

REAL The measured reactive power value is updated

during the run according to the Display interval

[MVAr].

Smoothing Time

Constant

REAL Used for calculating the real and reactive power[s].

Target Real

Power

REAL Target real power, obtained from a power flow[MW].

Target ReactivePower

REAL Target reactive power, obtained from a powerflow [MVAr].

Margin REAL The allowable margin around the target power to

determine the change in background color [pu].

Real Power

outside Margin

INTEGER Updated during the run to change thebackground color of the real power.

Reactive Power

outside Margin

INTEGER Updated during the run to change thebackground color of the reactive power.

Enable P&QOutputs

Drop List Enable the real and reactive power outputs.

Output Parameters

P The measured real power [MW].

Q The measured reactive power [MVAr].


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Load

Description

Input Parameters

Output Parameters

0.95 [pu]1.0 [MW]

Load

1.0 [MVAR]0.01 [MW]

R 0.00999900009999 [ohm]

LC 0.00318278058378 [H/uF]

-1.0 [MVAR]0.0008 [H]

Description

The Load component is part of the Model verification library and model a constant

impedance RLC branch connected to ground. The component has the functionality to use

different input values to calculate the RLC values.

More:

Input Parameters

General

Description

(optional)

Text A description that can be displayed.

(P,pf) or (S,pf) or

(P,Q) or Cap type

load?

Radio

Buttons

Allow the user to select between different forms

of available data. The user can select between:Real power and power factor,

Apparent power and power factor,

Real and Reactive power,Capacitor bank with inrush reactor.

Connected to a

node loop with

Drop

List

Selection is made to the type of node loop the

component is connected to:

3 phase view,

single line view.

Icon DropList

Different Icons can be displayed:Load, Inductor, Capacitor or Other


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Display R and L

or C values

Radio

Buttons

The calculated R and L or C values can be

displayed in ohms and H or uF.

Display resistance

value

REAL The displayed resistance [ohm].

Display

impedance value

REAL The displayed inductance or capacitance [H oruF].

Enable (Disable =

show graphics, no

electrics)

Radio

Buttons

The complete component can be switched out of

circuit while the graphics stay in the network.

This allows the component to remain in the filewithout taking part in the mathematical solution.

Values

Base Voltage

(L-L rms)

REAL Constant The voltage base that are used for the

impedance calculations [kV L-L rms].

Base

frequency

REAL Constant The frequency base that are used for theinductance or capacitance calculations [Hz].

Apparent

Power (3-ph)

REAL Constant The apparent power that are used for the

impedance calculations [MVA 3-ph].

Real Power(3-ph)

REAL Constant The real power that are used for theimpedance calculations [MW 3-ph].

Power factor REAL Constant The power factor that are used for theimpedance calculations [pu].

Imaginary

power (3-ph)

(+Ind, -Cap)

REAL Constant The reactive power that are used for the

impedance calculations [MVAr 3-ph].

Inrush reactor REAL Constant The inrush reactor when the Capacitor type

load is selected [H].

Type of

scaling

Radio

Buttons

Direct scaling of the load can be applied for

example when only 50% of the load is

required. Or, (1/Scale^2) can be appliedwhen the load value is available at a

different voltage than the base value for

example at 1.05 pu voltage.


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Scaling factor REAL The load scaling value that will be appliedaccording to Type of scaling[pu].

Internal outputs

Current A,B,C phase REAL The A, B and C phase current values [kA].

Output Parameters


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Display value

Description

Input Parameters

Output Parameters

0 puvariabl

0 puvariable @t=0.5 [sec

Description

The Display Value component is part of the Model verification library. It dynamicallydisplay the value of a variable on the component graphic. The value is updated

continuously or only once during the run. When the value is updated only once it can be

used as a sample and hold feature. If more than one Display Value component is

connected to the same variable with different sample and hold times, the value before andafter an event can be seen at the end of the run. For example, the power flow before and

after a fault on the network can be displayed.

The variable name and units are only for display purposes and can be omitted.

More:

Input Parameters

General

Description(optional) Text A description can be added to be displayed on

top of the component.

Display interval REAL The interval at which the display is updated

[s]. By increasing the display interval thesimulation runs faster. The value is updated

independently from the simulation Plot Step.

Display update time RadioButtons

Allow the user to Hide or Display the updatetime value.

Type of display Radio Repeat - allows the value to be updated


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update Buttons incrementally according to the DisplayInterval.

Once - updates the value only once during therun.

Display value REAL The measured value is updated during the run

according to the Display intervaland Typeof display update.

Scaling factor REAL A scaling factor can be applied to the display

value [pu].

Units (optional) Text A description for the units of the value being

measured can be added.

Output Parameters


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6 to 3-Phase Splitter / Connector

Description

Input Parameters

Description

The phase split component can be used to split a six-dimensional, electrical signal into

two separate three-dimension electrical signals or connect them to a single three-dimensional electrical signal.

The image below illustrates this components use:

P+j

TLine1

T

P+jQ

3 phase Source 6 phase line 2 x 3 phase loads

NOTE: The blue box symbol on this component indicates the first three-dimensional

array output (i.e. 1, 2 and 3 of 6).

More: Valid Connections

Input Parameters

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