# Rakesh Jain

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**Content Feed**

Question

How to get inverse of Backlash in simulink?

Please check the image attached herein (Source; Load Frequency Control of Power Systems with Governor Deadband (GDB) Non-linea...

nästan 4 år ago | 0 answers | 0

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answersQuestion

How to find f(t-1) if f(t) is given using simulink

I have an equation, something like this lambda = sign [f(t)]*f(t-1)] I am computing f(t) from the function block. So, i...

mer än 4 år ago | 1 answer | 0

### 1

answerQuestion

Matlab and simulink giving different results - FOPID controller (Files attached)

Please find attached the simulink and matlab files, wherein a simple FOPID controller is designed for a system. Both the files f...

nästan 5 år ago | 1 answer | 0

### 1

answerQuestion

How to find step response of a non linear system

I am reading a paper "Design of PID-P Controller for Non-Linear System using PSO " by Rajim Gupta, P.K.Padhy. In that paper, the...

nästan 5 år ago | 1 answer | 0

### 1

answerQuestion

Sample of sine wave

I need to sample a continuous time sine wave via MATLAB. For example, I need 19 samples of a sine wave. But the output, i.e. the...

nästan 5 år ago | 2 answers | 1

### 2

answersQuestion

Nonlinear optimisation via fmincon

I am using fmincon to optimize my objective function: objfn = f(Kp, Kd, Ki, x, y,w).I need to find optimum values of Kp, Kd, Ki,...

ungefär 5 år ago | 0 answers | 0

### 0

answersQuestion

Addition of disturbance to microgrid system

I have a microgrid system which is represented in state space model by x dot = Ax . The dimension of A is 32*32. I want to in...

ungefär 5 år ago | 0 answers | 0

### 0

answersQuestion

Solving for coefficients : Substitution error

In the below matlab code, I m solving for the coefficients b,c,d,e,f by comparing to a known equation. In the second last line o...

mer än 5 år ago | 1 answer | 0

### 1

answerQuestion

To find unknown constants similar to polynomial division

I have a 4th degree polynomial like 2x^4 + (3+K)x^3 + (4K)x^2 + 5x +9 (K is a constant) and a second degree polynomial like x^2 ...

mer än 5 år ago | 2 answers | 0

### 2

answersQuestion

.eps to Matlab .fig - Is it possible

I had made a complex .fig graph in Matlab. I exported it as a .eps file but forgot to save a .fig plot. Is it somehow possible t...

mer än 5 år ago | 0 answers | 1

### 0

answersQuestion

ISE, IAE, ITAE via Simulink

I have the data for output y and time t taken from simulink into the matlab workspace. I also have plot of y versus t Error is d...

mer än 5 år ago | 0 answers | 0

### 0

answersQuestion

Calculation of Integral square error from Simulink

I have a control system model in simulink. Using "to workspace" block, I have taken the output y and time t from the clock to Ma...

mer än 5 år ago | 0 answers | 0

### 0

answersQuestion

Definition of Integral Square Error via matlab (ISE)

I have to find integral square error, where error is defined below. I For the purpose of defining ISE, I have taken t= 0:0.1:100...

mer än 5 år ago | 2 answers | 0

### 2

answersQuestion

Some variables not being shown in workspace

I am implementing an optimisation heuristic algorithm in matlab. When I run it, some of the variables are not coming up in works...

mer än 5 år ago | 0 answers | 0

### 0

answersQuestion

Marker and color change on step plot

I want to change the color and marker style and size in step response plot through matlab code in the code. How can it be done ...

mer än 5 år ago | 0 answers | 0

### 0

answersQuestion

Doubt with stepinfo. Matlab file and program attached

Please find attached the code sys = fotf([0.08 1.88 0],[2 1 0],[1.8],[0]); pidi = fotf([1 0],[x(4) 1],[x(3) x(1) x(2)],[...

mer än 5 år ago | 0 answers | 0

### 0

answersQuestion

Simulink block diagram in higher resolution

I need to save a simulink block diagram in tiff format at a higher resolution. I need this to be able to use this figure in IEEE...

mer än 5 år ago | 0 answers | 0

### 0

answersQuestion

Simulink doubt -not have enough information to determine output sizes for this block

Please find attached the simulink diagram. The code in the main function block is as follows : function [xdot,xcapdot,db...

mer än 5 år ago | 1 answer | 0

### 1

answerEnlarge step response plot

I got the answer. On figure magnifier does this job. It is given here <https://in.mathworks.com/matlabcentral/fileexch...

mer än 5 år ago | 0

| accepted

Question

Enlarge step response plot

<</matlabcentral/answers/uploaded_files/82619/Abc.jpg>> I have a step response plot of two transfer functions. Both are almos...

mer än 5 år ago | 2 answers | 0

### 2

answersQuestion

Error while installing MATLAB

I have just opened the setup of Matlab R2016b. On opening, it shows an error : The installer could not start the JVM. Coul...

mer än 5 år ago | 1 answer | 0

### 1

answerQuestion

Plot browser: where is property editor lineseries

I am plotting step response of 7 transfer function in matlab R2016b. I want to select each of them individually. When I open plo...

mer än 5 år ago | 0 answers | 0

### 0

answersQuestion

H infinity norm Warning

When I calculate the h infinity norm of the following stable system given below, the warning appears that "Warning: SYSTEM has c...

nästan 6 år ago | 0 answers | 0

### 0

answersQuestion

Publication Quality Matlab Plot

I am writing a research paper. But the Matlab graph are of very low resolution, in the sense that when it is copy pasted into MS...

nästan 6 år ago | 1 answer | 0

### 1

answerQuestion

Are Stochastic selection and Stochastic uniform selection same ?

I am using Genetic Algorithm to minimise my objective function using optimtool toolbox. Under the 'selection' header it has a op...

nästan 6 år ago | 0 answers | 0

### 0

answersQuestion

Genetic Algorithm .Program running but not giving a maxima

The Genetic algorithm given below is to maximise a given non linear function.It runs correctly and gives some output. But the o...

nästan 6 år ago | 1 answer | 0

### 1

answerGenetic Algorithm .Program running but not giving a maxima

I have understood my mistake. I was my by mistake using different function for calculating output and y. Silly mistake on my par...

nästan 6 år ago | 0

| accepted

Question

Normal Random number generation

I want to generate random numbers from a standard normal distribution with decreasing standard deviation that lies between 0 and...

nästan 6 år ago | 2 answers | 0

### 2

answersQuestion

Solve a system of non linear equations with parameters

I have to find p11 p12 p22 in the following equations where q r b c are constants p12^2/r + 2*c*p12 - 2*q = 0 p11 - ...

nästan 6 år ago | 1 answer | 0

### 1

answerQuestion

Error: Double cannot convert the input expression into a double array.

The following is the program made by me which at the end gives me integral square error "integMinError". I wish to minimise this...

nästan 6 år ago | 1 answer | 0