# Arvind Sathyanarayanan

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**Content Feed**

Plotting amplitude response and phase

You can use the bode command to get the magnitude and phase response. Try: bode(sys);

1 year ago | 0

powergui and ideal ac source issue

Timothy, Guessing based on your desciprition, it seems like the time step might not be large enough. If you're using a fixed s...

2 years ago | 0

| accepted

How to specifiy the parameters of "Distributed Parameter line" block?

Sam, If you know the RLC parameters of your cable, you can use the pi section line or you could just lump the parameters and us...

2 years ago | 0

Is it possible to use "add_line()" betwen "Model Reference" Blocks

Lucas, Your command should be: %Syntax: add_line('system_name', 'blockname/outport', 'blockname/inport'); add_line(gcs, 'Mode...

2 years ago | 0

I want to use variable capacitor in SimPowerSystems like in simscape.How can i do it?

There is no block that will readily let you do this in SimPowerSystems but, the Simscape foundation library has a time varying c...

2 years ago | 0

| accepted

Solved

Triangle Numbers

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

2 years ago

Solved

Interpolator

You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

2 years ago

Transfer of admistrative rights

Stephen, To add a new administrator to a master license, go to the Mathwork license center: https://www.mathworks.com/licensece...

2 years ago | 0

| accepted

my for loop is not extracting all the possible values

Have you tried this: for idx=0.0:0.1:3 if any(x(:)==idx) %if they equal and it is true, thus returning 1 [row,co...

2 years ago | 0

Converting Simscape DC Voltage Source to Simulink

Mitchell, thanks for the screenshot. If I understand you correctly, you're trying to use Simscape foundation library. The best...

2 years ago | 0

| accepted

Find out if X out of Y elements of an array are true

You can do something like this : X=sum(Array(:) == 1); if X>=4 disp('4 or more elements are true') end If they are 1s ...

2 years ago | 0

Exit Matlab from a Simulnk callback function

Using the quit force command will let you overcome the error. Please make sure you save everything you need before running the c...

2 years ago | 0

| accepted

How to work with livescripts in Simulink projects

Sarah, I tried this on 2017b and I'm able to add livescripts to my project files. Please see the screenshot. Are you adding ...

2 years ago | 0

Converting Simscape DC Voltage Source to Simulink

Mitchell, Can you attach the model or post a screenshot so we can see the blocks you're trying to connect? If you're using t...

2 years ago | 0

How do you connect simscape elements to other elements in the Simulink?

Pooya, To connect SimPowerSystems to SimElectronics, try using the Current-Voltage Simscape Interface. There are some examples...

2 years ago | 1

import large csv file

Use the readmatrix() command to import the csv file. The 'Output Type' arugment will let you change the data type and 'Range' ar...

2 years ago | 0

Pid block output limitation

You were on the right path, the way to do is this by adding your own saturation block to the individual branches. Since Matlab d...

2 years ago | 0

| accepted

How can I integrate SimscapeBlock (Exponential Diode) into SubSystem (with powergui) electrical network?

You'll have use the current-voltage simscape interface to do this. Please this and this.

2 years ago | 0

| accepted

Can't download this on to simulink.

What happens when you type it in the command window and press enter? If you get this: Undefined function or variable 'sdl_vehic...

2 years ago | 0

Can someone help me solve this problem (Array indices must be positive integers or logical values)

The issue is with length(CPap). You're trying to divide sum(abs(diff(CPap)))*freq by length(0.3), in your case length is not an ...

2 years ago | 0

How do I change the time unit of my signal (from second to hour) in the signal builder block?

Felix, I don't think you change the time to hours but in reality time in simulink is unitless. Please see this answer.

2 years ago | 0

Zener Diode for Simscape.

The power_zener uses the Specialized Technology library but, the your model is built using the Simscape library. To use a diod...

2 years ago | 1

| accepted

i need help with inuptdlg

Ah! The syntax for inputdlg() is: answer = inputdlg(prompt,dlgtitle,dims,definput) The error was because when defining the def...

2 years ago | 0

| accepted

i need help with inuptdlg

You could specify default values for the 4 inputs. Example: prompt = {'Choose the figure name','Choose the Tree name',... ...

2 years ago | 0

How can I generate a physical square signal of boolean type on Simulink?

You need the double data type to drive the switches but, using the NOT (or any logical operator) changes the data type to boolea...

2 years ago | 2

| accepted

MATLABWindow.exe crashes when closing app or app creator

I beileve this is a bug with 2017b. I faced a similar issue when I used app.delete; to close my app. Have you tired installing t...

2 years ago | 0

how can I plot smooth graph

A moving average filter might do the job. Play around with the number of points to preserve the peak value. N = 10; h = (1/N)...

2 years ago | 0

Control System Toolbox - Linear Analysis

To place the linear analysis points, you need to right click the line and select the type of point you want to use. See image be...

2 years ago | 1

| accepted

I am currently designing an electric vehicle model in simulink to stimulate the power losses.

Matlab has a reference.

2 years ago | 1

| accepted

How to delete rows from an array?

Set the rows you want to delete to null. Example: x(550:end,:)=[];

2 years ago | 0

| accepted