Phần 14 KHÓA ĐÀO TẠO TÍNH TOÁN ỔN ĐỊNH VÀ ỨNG DỤNG TRÊN PHẦN MỀM PSSE CHO KỸ SƯ HỆ THỐNG ĐIỆN (Xuất kết quả tính toán ổn định trong Phần mềm PSSE)

KHÓA ĐÀO TẠO TÍNH TOÁN ỔN ĐỊNH VÀ HƯỚNG DẪN SỬ DỤNG PHẦN MỀM PSSE CHO KỸ SƯ HỆ THỐNG ĐIỆN (Xuất kết quả tính toán ổn định trong Phần mềm PSSE): • Introduction to PSSPLT. • Plotting with PSSPLT. • Recording an IDEV file. • Recording an IDEV file. • Creating an IDEV file for plotting

A Division of Global Power

POWER SYSTEM STABILITY CALCULATION TRAINING

D 7 Pl tti ith PSSPLT Day 7 - Plotting with PSSPLT

July 12, 2013 Prepared by: Frida Ceja-Gomez

OUTLINE OUTLINE

• Introduction to PSSPLT

• Plotting with PSSPLT

• Recording an IDEV file

• Creating an IDEV file for plotting

INTRODUCTION TO PSSPLT eBook for You

What is PSSPLT?

What is PSSPLT?

• PSSPLT is a separate PSS

• PSSPLT is a separate PSS

module that allows the

user to manipulate and

plot data

• To access PSSPLT, go to

the Start menu, Programs,

and open the PSSE 33

folder (as shown on the

picture to the right)

What is PSSPLT?

What is PSSPLT?

• The PSSPLT GUI is shown below Each activity will be discussed on

the next slides.

PSSPLT Activities

PSSPLT Activities

• CHNF: This activity allows the user to select the channel output file

to use for plotting (.out).

• RANG: The range activity allows the user to determine the channel

data minimum and maximum limits.

• IDNT: The channel identification listing activity tabulates a listing of

channel identifiers.

• TINT: The time interval activity is used to set the beginning and

ending times for subsequent plots.

• SLCT: The plot channel selection activity is used to select one or SLCT: The plot channel selection activity is used to select one or

more channels to be plotted.

• PLOT: The plotting activity generates the plots defined by invoking

previous activities such as SLCT

previous activities, such as SLCT.

PSSPLT Activities

PSSPLT Activities

• PLOT, IN: This activity allows plotting in an interactive

mode in which the user can add notes and pointers to the

mode, in which the user can add notes and pointers to the

plot.

• CLSP: This activity is used to close a plot and have it sent to

a spooled device.

• MCHN: The multiple plot file selection activity allows the

user to choose a maximum of six binary plot files to be used

user to choose a maximum of six binary plot files to be used

for subsequent operations.

• STOP: This activity allows the user to exit PSSPLT y

• IDEV: The input device selection activity is used to change

the source from which PSSPLT accepts the user’s

commands to a response file

commands to a response file.

PLOTTING WITH PSSPLT eBook for You

Selecting the channel output file

Selecting the channel output file

the one shown

to the right will

appear

Defining the range of the output channel

Defining the range of the output channel

Cli k ti it RANG

• Click on activity RANG

• Select Generate Actual

Adjusted Scales

• This option searches

through the data for

all channels and

Selecting the channels to plot

Selecting the channels to plot

• Click on activity SLCT, and then

click on select

• The window to the right will appear

• Choose the channel you wish

to plot and click OK

• Define the minimum and maximum values for the Y-

axis and click OK

Selecting the channels to plot

Selecting the channels to plot

• If you click again on activity SLCT, a window showing the selected

channels will pop up

• Note that a maximum of 6 channels can be selected at a time

Th diff t ith ti f ti ill b di d l t b t A

• The different arithmetic functions will be discussed later, but A

means that there is no function applied to the channel

Plotting the selected channels

Plotting the selected channels

• Click on activity PLOT

• The window shown below will appear

• Enter the name you wish to assign to this plot

and click OK

Plotting the selected channels

Plotting the selected channels

• The following window will

open

• The options shown are the

• The options shown are the

different graphic devices

available to plot the

Plotting the selected channels

Plotting the selected channels

• The plot of the selected channels should be generated, as

shown below

Closing the plot file

Closing the plot file

• Click on the plot to close it

RECORDING AN IDEV FILE eBook for You

Activity ECHO

Activity ECHO

• IDEV files are useful to automate the generation of plots and avoid

repetitive tasks

• When you generate a plot manually, you can record the commands

in an IDEV file that can be later used to repeat the plot

• To start recording

commands in an IDEV file,

go to the IO Control menu

and click on ECHO (Set

echo device)

• A window will open

prompting you to type the

name of the IDEV file to be

created (or select an (

existing file)

Opening the output file

Opening the output file

• This time we will plot the voltage at Bus 201 p g

• We will also learn how to apply an arithmetic

function to a channel

• If PSSPLT was closed in the previous activity, open

the program again

• Use activity CHNF to open the output file

• We will continue to use the output file:

• We will continue to use the output file:

example1.out

• Then perform activity RANG, Generate Actual Then perform activity RANG, Generate Actual

Adjusted Scales, click OK and then No More.

Applying a function to the output

Applying a function to the output

• Go to the Edit menu and select

FUNC (choosing a plotting

FUNC (choosing a plotting

function)

• Select User Defined Arithmetic

Function and click OK

• Enter the arithmetic expression

• In this case we will multiply the

channel by 500, so that we can see

the voltage in kV instead of pu

Selecting the channel to plot

Selecting the channel to plot

• Go to activity SLCT and select channel 13

• Set the minimum and maximum values for the plot scale,

click OK, and then No more

• Note how on the top left corner we can see the function that

will be applied to the channel

Setting FUNC back to channel value

Setting FUNC back to channel value

reset this option

• To avoid this, go to the

Edit menu, FUNC

activity and select

activity and select

Channel Value

• Click OK

Plotting the output

Plotting the output

• Go to activity PLOT and

• Go to activity PLOT and

enter the name of the plot

• Again, select MS-Windows Again, select MS Windows

(color) as the graphic

device

Plotting the output

Plotting the output

• The following plot should be generated:

Closing the IDEV file

Closing the IDEV file

• To stop recording commands to the IDEV file, go to the IO

Control menu and click on ECHO,OFF (Turn off ECHO)

Verifying the IDEV file

• Open the created IDEV file

• It should look like the one

shown to the right

• The first line is added

automatically by the program

to force the menu to the

correct status, as explained , p

on the file

• Note that /* indicates a

comment

• Let us do a line by line

analysis of this file

Understanding the IDEV file

Understanding the IDEV file

Line by line analysis:

1 Force menu to correct status

2 Open output channel file

3 Specify file path

4 Start activity RANG

5 Generate actual adjusted scales

6 Exit RANG activity

7 Define a function

8 Option 2: User defined arithmetic

8 Option 2: User defined arithmetic

function

Understanding the IDEV file (cont.)

9 Multiply channel by 500 18 Select graphic device 26 –

17 Plot name: Voltage (kV)

Running an IDEV file

• To run the IDEV file we just created go to activity IDEV

• To run the IDEV file we just created, go to activity IDEV

• Click on the Select button to choose the file you wish to open

• Click on OK

CREATING AN IDEV FILE FOR

Creating an IDEV file

• Based on the analysis of the recorded IDEV file from the previous

• Based on the analysis of the recorded IDEV file from the previous

section, we will now create our own IDEV file

• The purpose of this IDEV file will be to plot all the machine angles

and bus voltages in our test system

• As seen on the previous slides, the main structure to follow when

writing an IDEV file is:

ACTIVITY NAME Option number Parameter specification EXIT (0)

• Open a text file (Notepad) and save it as: Example1_myIDEV.idv

First lines of an IDEV file

• We begin by forcing the

menu to the correct status

• Activity POPT, option 15 is

set to 4 plots per page (note

that this activity can be

found under the Misc menu)

• We then perform activity p y

CHNF, to open the output file

• Instead of writing the name

of the output file we will

of the output file, we will

write %1%.out to be able to

call this file from another

IDEV file and use different

output files (this will be

output files (this will be

explained later)

Selection of the channels

• Now we start activity RANG

• Now, we start activity RANG

and select option 1: Generate

Actual Adjusted Scales.

W th it ith 0

• We then exit with 0

• We then start activity SLCT

and choose all the angles

• Note that the R following the

channel number allows us to

specify the range later p y g

• Next we specify the range for

each of the selected

channels

Creating an IDEV file

• Once the channels are

selected, we perform

activity PLOT

• We will name this plot We will name this plot

“Machine’s Angles (Deg)”

• Next we specify the

graphic device : option 41

/ Postscript

• This option will allow us

• This option will allow us

to open the plots with

Adobe Acrobat

Professional

Creating an IDEV file

• We will now select channels 7, 8, 9,

10, 11 and 12, which are the bus

voltage in Area 1

• We define the range of each of

them from 0.0 to 2.0, since we will

t e o 0 0 to 0, s ce e

plot them in per unit

• We write a 0 between the last range

definition and the PLOT activity to

definition and the PLOT activity to

exit activity SLCT

• Note that this 0 was not needed to

l th fi t SLCT ti it b t

close the first SLCT activity, but

will be required every time after

Creating an IDEV file

• We follow the same steps as

before, but now for the voltages in

Area 2

• Note that we will not select channel

16, since bus 204 it is not of

interest (no load, no generation,

and only connected radially)

• We again set their range from 0.0

to 2.0

• Finally we name the plot and select

• Finally we name the plot and select

graphic device 41

Creating an IDEV file

• Now, let us plot the voltages

in Area 5

• Note that only 6 channels

per plot are allowed, so we

will have to do it in two

Creating an IDEV file

• Once all the desired plots have been

defined, we use activity CLSP to close

them and send them to a spooled

device

• The 1 refers to the number of copies we

want

• The name of the file goes after the The name of the file goes after the

comma, but in this case we see again

the %1%, which will be explained later

• The extension refers to a postscript

• The extension refers to a postscript

type file

• Finally, we terminate the response file

ith ECHO d @END

with ECHO and @END

Creating an IDEV file

• We will now write another IDEV file which we will use to call

the one we just created

• This way, we can perform the plots for different cases in a

quick and practical way

• Open a new text file, write the commands shown below and

save it as: busfaults_example1.idv

Calls the IDEV with  all the commands

Replaces the %1% inside  the file we are calling

Calling the IDEV file

• In PSSPLT, click on activity IDEV and open the second file we

Verifying the output plots

• Open the plots, they should look like the one shown below

QUESTIONS?

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