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Feeds
Distinguish the different curves and identify the points corresponding to each way
Hi @rana I now understand that you are seeking advice on graphically displaying the data. Here is an example of what I consider...
2 days ago | 2
How do you use To Workspace? (DC Shunt Motor)
The To Workspace block logs the signal connected to its input port to the workspace. To access the data logged by a To Workspace...
3 days ago | 0
Why doesn't Iref_sd = 0 when 0 is input to Tref and ωm in the ACIM control reference?
Hi @中嶋 Your and according to mathematical model of the AC Induction Motor (ACIM) Control Reference block, if the condition is...
3 days ago | 0
| accepted
how to input a function as a parameter of a function
Hi @Tony Cheng Something like this: %% Script to call 'fMin1D' x0 = [1, 1]; [x, fval] = fMin1D(x0, @quadfcn) %% Minimize...
4 days ago | 0
| accepted
How to implement an LQR controller when the system's state variables and control inputs have different units?
Hi @준호 Could you provide a simple code example involving lqr() to illustrate your concern? There should not be any issues with ...
4 days ago | 0
Simulink physical sys is stable even the Matlab model for the same sys is unstable
Hi @mohamed If at least one pole of the closed-loop system has a positive real part, the system is considered unstable. You may...
5 days ago | 0
How to implement MPC when the number of states is greater than the number of outputs?
Hi @준호 The MPC Controller still functions effectively even when the number of states exceeds the number of outputs. I have made...
6 days ago | 0
| accepted
Stepinfo provides wrong rise time using [0, 0.63] limits for non minimum phase systems
Hi @Ken Buckholtz Here is another approach to estimating the user-defined rise time: by defining the 'RiseTimeLimits' and ident...
6 days ago | 0
Converting a nonlinear state equation into state dependent matrix form
Hi @Md Sabbir Haider Based on your descriptions, it is entirely acceptable to use the nonlinear state equations for simulation ...
6 days ago | 0
Stepinfo provides wrong rise time using [0, 0.63] limits for non minimum phase systems
Hi @Ken Buckholtz Rise time is a non-standard performance measure. By default, in MATLAB, rise time is defined as the duration ...
6 days ago | 0
please ,write a code to 3D plot this file .
I am unsure about the specific type of 3D plot you require. I reviewed your previous questions and found that you have already l...
8 days ago | 0
How to solve Coupled Differential Equations
Hi @Lorenzo Primarily, coupled ordinary differential equations (ODEs) in additive form can be decoupled using the substitution ...
8 days ago | 0
how can i simulate feedback system with fuzzy controller in m file without simulink?
Hi @mohamed al-asklany If the fuzzy controller (or the *.fis object) has been designed, it is straightforward to implement it ...
9 days ago | 0
| accepted
Plot the function on graph
Look up the documentation plot(). There are plenty of simple examples that you can learn to plot it yourself.
9 days ago | 0
PSO algorithm MPPT change irradiation condition
Hi @DIMAS You are likely seeking general solutions without needing someone to guide you through the process step-by-step. The d...
10 days ago | 0
How i can talk to support of Matlab website?
Hi @salim saeed I would like to add that when you share your scripts, code, models, or graphics, you grant forum users the righ...
11 days ago | 1
| accepted
Rotary Inverted Pendulum State Space Model PID Control
Hi @Burak Mert If no other control requirements are specified, the objective is to "freely" find any combination of gain values...
11 days ago | 0
Evolutionary learning tools or aids
If you are looking for a built-in function for optimizing solutions based on learning principles inspired by biological evolutio...
12 days ago | 0
Step response is not showing up in the legend of my plot
I tried plotting both to display on the same graph and inserted the legends. There's no problems so far. legend('simulated', 'e...
12 days ago | 0
Fit a standard exponential fit to approximate data
Hi @Reji G You can use the approach described by @William Rose. Alternatively, you can use the envelope() function. The followi...
20 days ago | 1
minimizing with genetic algorithm
Hey @dal For time-invariant real-valued univariate functions, it is recommended to plot the graph to estimate the approximate l...
2 months ago | 0
When plotting functions like 1/sin(x), how can I remove the vertical lines at the points of discontinuity?
Use fplot(). fplot(@(x) 1./sind(x), [-359 359]), grid on, xlabel('degree') % d = -345:30:345; % x = deg2rad(d); % y = ...
2 months ago | 0
how do divide like this picture by code matlab?
Hi @Vuong If this is a topic of Finite Element Analysis, then look up generateMesh() and pdemesh(). gm = fegeometry(@lshapeg);...
2 months ago | 0
Have successfully used ode45 once in this code, but with the same size parameters am getting an error about initial conditions vector being longer than the return vector.
Hi @Raoul There is no error in organizing the code structure clearly with constants and states (variables that change over time...
2 months ago | 0
Controllable Companion form for a MIMO system
Hi @naiva saeedia The following is the result returned by compreal: %% Original state-space Plant A = [-0.978707531551846 ...
2 months ago | 0
Initial Oscillations in Closed Loop Control Model
Hi @Mariangela Plot the vector field, and you should be able to understand the instantaneous dynamics at each point in the phas...
3 months ago | 0
PID tuning to meet conditions for settling time and overshoot while a stable system with minimum peak time and zero velocity error.
Hi @Ashaya KC Here is the solution using pidtune(). There is no direct way to input the desired settling time and overshoot per...
3 months ago | 0
| accepted
PID tuning to meet conditions for settling time and overshoot while a stable system with minimum peak time and zero velocity error.
Hi @Ashaya KC Let's first use the ideal mathematical solution and then compare it to your solution obtained using the pidtune()...
3 months ago | 0
having problem plotting ramp function
Hi @Tien Yin The signal in the image is a piecewise function that consists of three sub-functions defined over different interv...
3 months ago | 1
How to add an s+1 block on simulink?
Hi @Julian Since you are unable to clearly define the control objective and performance requirements, I can only advise you to ...
3 months ago | 0
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