# Saeed Ahmadzadeh Mahboobi

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**Content Feed**

Question

Simscape/Powergui diognastic - what does a red frame mean?

Hi Everyone Usually the blocks have a black frame in simulink. But what does it mean, when a Simscape/Powergui block has a red ...

2 years ago | 1 answer | 0

### 1

answerQuestion

Simulink integrator produces false result !

Hello everyone I have modeled and HVDC system in Simulink, and have implemented simple PI-controllers for the converters of the...

2 years ago | 0 answers | 0

### 0

answersSimulink bug - adding a PID only to scope creates large fluctuations

Hi I'm having a similar problem: Once I just use an I-Controller (turning the built-in PID to I-Controller) and once I build t...

2 years ago | 0

Saving final states and setting initial values in Simulink

I myself found what the problem is: I made changes to the model (for example like adding an RLC-branch to the model, or changed...

2 years ago | 0

| accepted

Question

Initializing Simulink Model (Bothering)

Hello Here is my bothering Problem: For a simulink model (an HVDC-system, containing Simscape and Simulink blocks) I simulate ...

2 years ago | 0 answers | 0

### 0

answersHow to change the value of constant while simulation is running

If you want to do it during the simulink simulation, then the block "IC" in simulink/sinks , which is a "initial condition" bloc...

2 years ago | 0

Question

Initialize MATLAB-Function

Hello I've read in the previous questions, that initializing a MATLAB-Function in Simulink is done like: persistent j; ...

2 years ago | 1 answer | 0

### 1

answerQuestion

Getting the state variable names

Hello I have a simulink model with more than 369 state variables for which I can save the final state values (from Configura...

2 years ago | 0 answers | 0

### 0

answersQuestion

parameterization the initial condition of a Switch/Breaker

Hi I want to parametrise the initial condition of a Circuit breaker in Simulink like this: But as I run the simulation th...

2 years ago | 0 answers | 0

### 0

answersQuestion

Saving final states and setting initial values in Simulink

Hello I have created a Model of an electric power system using Simscape ==> Power System. I simulate it, then I save the fin...

2 years ago | 1 answer | 0

### 1

answerQuestion

Solve a system of linear equations in matrix form

I want to solve the following system of linear equations. u1 - u2 = 11.1680 u1 - u4 = 22.8197 u3 - u5 ...

3 years ago | 1 answer | 0

### 1

answerQuestion

Problem with ODE45

I should solve 2 coupled matrix differential equations. for that, I have created a script (m-file) in which I have defined all m...

3 years ago | 0 answers | 0

### 0

answersQuestion

how to create a symbolic matrix with automatically generated symbolic functions as its elements?

Hi I want to create a 1x100 matrix A, which has 100 functions of time in it (all the elements must be syms) so that I can write...

3 years ago | 0 answers | 0

### 0

answersQuestion

how to solve 2 or several differential matrix equations (a system of two equations including 2 matrix equations)?

Hi How can I solve the following 2 equations, in which u and i are vector matrices: diff(i) = A.u + B.i diff(u) = ...

3 years ago | 0 answers | 0

### 0

answersQuestion

how to call matrix from workspace into simulink and return it in workspace?

Hi How can I call a matrix from workspace in matlab into simulink and do some mathematical operations on it and return it in ma...

3 years ago | 0 answers | 0

### 0

answersQuestion

Question about transfer function calculations

I have a Transfer function (in Laplace area), and know that the output signal of the system should be a definite value (to be mo...

4 years ago | 0 answers | 0