Answered

How do I generate pulses from the block PWM Generator to operate the switches if they are more than four?

Hello Salah, you need to determine the appropriate duty cycle for each of your half bridges. I see 4 half bridges. So you nee...

How do I generate pulses from the block PWM Generator to operate the switches if they are more than four?

Hello Salah, you need to determine the appropriate duty cycle for each of your half bridges. I see 4 half bridges. So you nee...

6 meses ago | 0

Answered

Error "Derived parameter initialization for Vbe_sat failed to converge"

Hello Ander, the issue is that RC and RE need to be lower to calculate a realistic Vbe-sat. I believe it needs to be lower tha...

Error "Derived parameter initialization for Vbe_sat failed to converge"

Hello Ander, the issue is that RC and RE need to be lower to calculate a realistic Vbe-sat. I believe it needs to be lower tha...

6 meses ago | 0

| accepted

Answered

Variable resistor with Tustin solver

Hello, I think the interpolation function is incompatible with the variable resistor. I'll submit a bug report and see what I ...

Variable resistor with Tustin solver

Hello, I think the interpolation function is incompatible with the variable resistor. I'll submit a bug report and see what I ...

6 meses ago | 0

| accepted

Answered

P, PI, PID Implementation in two-op-Amps

hello Steven, there are two pieces. 1st, you need to write your PID controller in form A(Bs+1)(Cs+1)/s. This gives you A = R1...

P, PI, PID Implementation in two-op-Amps

hello Steven, there are two pieces. 1st, you need to write your PID controller in form A(Bs+1)(Cs+1)/s. This gives you A = R1...

6 meses ago | 0

Answered

Longitudinal differential protection of synchronous generators in mathlab

Hello Yuri, you will want to start by learning to use simscape, and then simscape electrical. Landing page: https://www.math...

Longitudinal differential protection of synchronous generators in mathlab

Hello Yuri, you will want to start by learning to use simscape, and then simscape electrical. Landing page: https://www.math...

6 meses ago | 0

Answered

How can I create a new column vector to store dates?

Hello Salman, you can use datetime for this: https://www.mathworks.com/help/matlab/matlab_prog/represent-date-and-times-in-MATL...

How can I create a new column vector to store dates?

Hello Salman, you can use datetime for this: https://www.mathworks.com/help/matlab/matlab_prog/represent-date-and-times-in-MATL...

6 meses ago | 0

| accepted

Answered

Assign Slider Value Changing to a vector element in App Designer

Hello Giovanni, do you mean to multiply u_fs = Kfinv*f(changingValue)? right now it is Kfinv*f, where f is [100x1]. that mean...

Assign Slider Value Changing to a vector element in App Designer

Hello Giovanni, do you mean to multiply u_fs = Kfinv*f(changingValue)? right now it is Kfinv*f, where f is [100x1]. that mean...

6 meses ago | 0

Answered

transformer output amplitude increasing oscillations

In addition to adding snubber resistors, you can reduce your time step or increase your tolerance. Maksure sure you are using t...

transformer output amplitude increasing oscillations

In addition to adding snubber resistors, you can reduce your time step or increase your tolerance. Maksure sure you are using t...

6 meses ago | 0

Answered

problems connecting a Voltage Measurement Block to parallel RLC branch circuit.

I'm sorry this answer comes too late to be useful: It sounds like the first issue is a UI bug preventing connection of lines th...

problems connecting a Voltage Measurement Block to parallel RLC branch circuit.

I'm sorry this answer comes too late to be useful: It sounds like the first issue is a UI bug preventing connection of lines th...

6 meses ago | 0

Answered

Is the abc_to_dq0 Transformation correctly defined in SimPowerSystems?

It is correct, howerver, there are mutliple standards for reference frames which can cause confusion. (such as a 90 degree offse...

Is the abc_to_dq0 Transformation correctly defined in SimPowerSystems?

It is correct, howerver, there are mutliple standards for reference frames which can cause confusion. (such as a 90 degree offse...

6 meses ago | 1

Answered

Problem with Matlab example model in SimPowerSys - Performance of Three PSS for Interarea Oscillations

I ran this model with changes and saw no oscillations. Please include example files of problems when you want help debugging.

Problem with Matlab example model in SimPowerSys - Performance of Three PSS for Interarea Oscillations

I ran this model with changes and saw no oscillations. Please include example files of problems when you want help debugging.

6 meses ago | 0

Answered

battery electrical model on simulink

This is being answerd as part of a Simscape Electrical Matlab Answers cleanup. I apologize for this being too late to be useful...

battery electrical model on simulink

This is being answerd as part of a Simscape Electrical Matlab Answers cleanup. I apologize for this being too late to be useful...

6 meses ago | 0

Answered

How to obtain the magnetization currents of a transformer in Simulink ?

If you are specifically looking for magentization, a simple transformer block will not capture the dynamics to the level of deta...

How to obtain the magnetization currents of a transformer in Simulink ?

If you are specifically looking for magentization, a simple transformer block will not capture the dynamics to the level of deta...

6 meses ago | 0

Answered

While attempting to run a simulink file with simpower systems components, MATLAB throws the following error. Kindly help me out of this. I am running MATLAB R2009a

This type of error would require an example model to be included.

While attempting to run a simulink file with simpower systems components, MATLAB throws the following error. Kindly help me out of this. I am running MATLAB R2009a

This type of error would require an example model to be included.

6 meses ago | 0

Answered

Simulink model for buck-boost cascaded inverter

This is part of a Matlab Answers Simscape Electrical cleanup effort: This can be done in simscape electrical or specialized pow...

Simulink model for buck-boost cascaded inverter

This is part of a Matlab Answers Simscape Electrical cleanup effort: This can be done in simscape electrical or specialized pow...

6 meses ago | 0

Answered

is the black vertical bar bus bar?

It can also be a power measurement block that was filled black and made small to look like that.

is the black vertical bar bus bar?

It can also be a power measurement block that was filled black and made small to look like that.

6 meses ago | 0

Answered

Can i construct 24 bus reliability test syste using simpowersystem blocks like sync mashine in matlabsimulink??

Yes it is, please look at examples to see larger systems.

Can i construct 24 bus reliability test syste using simpowersystem blocks like sync mashine in matlabsimulink??

Yes it is, please look at examples to see larger systems.

6 meses ago | 0

Answered

how to calculate zero sequence impedance(resistance,inductance,capacitance) for destributed parameter line block if i am only having the positive sequence parameters

Unfortunately you can't. positive sequence inherently has no zero sequence aspects to it.

how to calculate zero sequence impedance(resistance,inductance,capacitance) for destributed parameter line block if i am only having the positive sequence parameters

Unfortunately you can't. positive sequence inherently has no zero sequence aspects to it.

6 meses ago | 0

Answered

How to build an Op Amp?

try adjusting your maximum time step to something smaller. It could be that the simulatoin is accurate, it's just taking such l...

How to build an Op Amp?

try adjusting your maximum time step to something smaller. It could be that the simulatoin is accurate, it's just taking such l...

6 meses ago | 0

Answered

Control the output power of the generator when connected to a infinite grid

This sounds like an issue with your control algorithm and how the generator is interacting with it's connections. It is likely ...

Control the output power of the generator when connected to a infinite grid

This sounds like an issue with your control algorithm and how the generator is interacting with it's connections. It is likely ...

6 meses ago | 0

Answered

How to find Total Harmonic Distortion(THD) in power system model using wavelet toolbox?

use the powergui button to analyze THD instead. Or, start here to bring in your data: https://www.mathworks.com/help/wavelet/gs...

How to find Total Harmonic Distortion(THD) in power system model using wavelet toolbox?

use the powergui button to analyze THD instead. Or, start here to bring in your data: https://www.mathworks.com/help/wavelet/gs...

6 meses ago | 0

Answered

Power_analyze-increase accuracy (state-space)

If you need greater than double precision tolerances you will need to solver this problem with custom data types and math librar...

Power_analyze-increase accuracy (state-space)

If you need greater than double precision tolerances you will need to solver this problem with custom data types and math librar...

6 meses ago | 0

| accepted

Answered

Is there a typo in the simpowersystems transformer impedance dialog?

which transformer block? most of them take inductances or (pu) inductances. It may say impedance if it is asking for R and L i...

Is there a typo in the simpowersystems transformer impedance dialog?

which transformer block? most of them take inductances or (pu) inductances. It may say impedance if it is asking for R and L i...

6 meses ago | 0

Answered

How can find a transfer function of the model in base paper

Use frequency response estimation if the system cannot be linearized analytically. https://www.mathworks.com/help/slcontrol/fre...

How can find a transfer function of the model in base paper

Use frequency response estimation if the system cannot be linearized analytically. https://www.mathworks.com/help/slcontrol/fre...

6 meses ago | 0

Answered

How to break down three phase pulses into single phase for gate pulses?

Hello Mark, sorry for this being too late for you. Use mux and demux blocks to access combined signals. You can also use sele...

How to break down three phase pulses into single phase for gate pulses?

Hello Mark, sorry for this being too late for you. Use mux and demux blocks to access combined signals. You can also use sele...

6 meses ago | 0

Answered

How can i change mask block function name and parameter .

You would need to provide an example of the system you are using and how you are trying to get the snap shot. Specialized Power...

How can i change mask block function name and parameter .

You would need to provide an example of the system you are using and how you are trying to get the snap shot. Specialized Power...

6 meses ago | 0

Answered

How can I use the simplfied synchronous generator in SimPowersystems in a phasor simulation type?

power_simplealt can be switched to phasor mode, there will be a small perturbance at start, but then it works.

How can I use the simplfied synchronous generator in SimPowersystems in a phasor simulation type?

power_simplealt can be switched to phasor mode, there will be a small perturbance at start, but then it works.

6 meses ago | 0

Answered

Fuel cell stack model equations. why 60000 on stack utilisation equation?

Hello Leo, I assume this is in reference to the equations under the hood: 60000*FC.Nc*u(2)*FC.R*u(5)/(FC.z*FC.F*u(4)*FC.Pstd*u(3...

Fuel cell stack model equations. why 60000 on stack utilisation equation?

Hello Leo, I assume this is in reference to the equations under the hood: 60000*FC.Nc*u(2)*FC.R*u(5)/(FC.z*FC.F*u(4)*FC.Pstd*u(3...

6 meses ago | 0

Answered

Initialization commands cannot be evaluated.

You would need to share a model for this type of error to be debugged.

Initialization commands cannot be evaluated.

You would need to share a model for this type of error to be debugged.

6 meses ago | 0

Answered

problem using linear transformer in simpower system..

Please refer to examples on this page to see how this block is used correctly: https://www.mathworks.com/help/physmod/sps/powers...

problem using linear transformer in simpower system..

Please refer to examples on this page to see how this block is used correctly: https://www.mathworks.com/help/physmod/sps/powers...

6 meses ago | 0