Answered

Three phase AC voltage source- Source resistance and inductance

You can use a formula if you want to match source resistance and inductance to impedance values, which will be calculated using ...

Three phase AC voltage source- Source resistance and inductance

You can use a formula if you want to match source resistance and inductance to impedance values, which will be calculated using ...

ungefär en månad ago | 0

| accepted

Answered

How to model hall sensor output into 180 degree commutation for BLDC motor control.

You can interpret the binary commands as integers, and use that for a case statement to select the appropriate vector.

How to model hall sensor output into 180 degree commutation for BLDC motor control.

You can interpret the binary commands as integers, and use that for a case statement to select the appropriate vector.

ungefär en månad ago | 0

Answered

Why Im_ref = 2⋅T ref /3⋅p⋅λ pm for Interior PMSM? in MTPA Control Reference

The first equation your have underlined is the maximum current reference limit used for a specific type of control ( MTPA) while...

Why Im_ref = 2⋅T ref /3⋅p⋅λ pm for Interior PMSM? in MTPA Control Reference

The first equation your have underlined is the maximum current reference limit used for a specific type of control ( MTPA) while...

ungefär en månad ago | 0

Answered

DFIG Detailed Model integrated with F28379D LaunchPad DSP

Hello Ahmed, that example has a basic closed loop controller which could serve as the beginning of a DFIG controller running on...

DFIG Detailed Model integrated with F28379D LaunchPad DSP

Hello Ahmed, that example has a basic closed loop controller which could serve as the beginning of a DFIG controller running on...

2 månader ago | 0

Answered

Can I use the Simscape Battery feature with only Simscape and Simscape Electrical products?

Hello, it is possible to do all of those things with Simulink and Simscape Electrical, but you will have to build everything fro...

Can I use the Simscape Battery feature with only Simscape and Simscape Electrical products?

Hello, it is possible to do all of those things with Simulink and Simscape Electrical, but you will have to build everything fro...

2 månader ago | 0

| accepted

Answered

How to simulate in function of duty cycle instead of time?

Hello Pedro, To do this live, you can use the x/y graph: https://www.mathworks.com/help/simulink/ug/plot-circle-with-xy-graph.h...

How to simulate in function of duty cycle instead of time?

Hello Pedro, To do this live, you can use the x/y graph: https://www.mathworks.com/help/simulink/ug/plot-circle-with-xy-graph.h...

2 månader ago | 0

| accepted

Answered

How to use a different hardware from the hardware used in the example?

Hello Alex, it can be fairly challenging to just switch an example and have it work closed loop. There are a number or potenti...

How to use a different hardware from the hardware used in the example?

Hello Alex, it can be fairly challenging to just switch an example and have it work closed loop. There are a number or potenti...

2 månader ago | 1

Answered

Bug Simulating Thermal Losses for a Rectifier based on Foster Model

Hello, the issue here is that the system is calculating less than ideal initial conditions. The foster model's have the "start...

Bug Simulating Thermal Losses for a Rectifier based on Foster Model

Hello, the issue here is that the system is calculating less than ideal initial conditions. The foster model's have the "start...

3 månader ago | 0

| accepted

Answered

Find duty cycle of DC-DC buck-boost converter in Matrix

You should use "./" instead of "/", this changes it to a vector operation instead of a matrix operation.

Find duty cycle of DC-DC buck-boost converter in Matrix

You should use "./" instead of "/", this changes it to a vector operation instead of a matrix operation.

3 månader ago | 0

Answered

How to update simulink model sample time dynamically during simulation?

Hello Kepler, This is a common issue where execution of code does not happen at fixed intervals. The main way of modelling thi...

How to update simulink model sample time dynamically during simulation?

Hello Kepler, This is a common issue where execution of code does not happen at fixed intervals. The main way of modelling thi...

3 månader ago | 0

Answered

Why do i get an an assertion error << Supply-side voltage must be greater than zero>> when trying to simulate a Dc-Dc converter ?

Hello, sorry for the late response, as this won't be useful to you, but the question got popped up again because of another use...

Why do i get an an assertion error << Supply-side voltage must be greater than zero>> when trying to simulate a Dc-Dc converter ?

Hello, sorry for the late response, as this won't be useful to you, but the question got popped up again because of another use...

3 månader ago | 0

Answered

Why do we optimize these parameters and not the R &C, and what are the equations used in identifying these parameters

Hello Hend, parameter estimation uses stochastic processes (random) to randomly change parameters of a model and then determine...

Why do we optimize these parameters and not the R &C, and what are the equations used in identifying these parameters

Hello Hend, parameter estimation uses stochastic processes (random) to randomly change parameters of a model and then determine...

3 månader ago | 0

Answered

The following two blocks cannot be connected in series: Block 1: 'A_stator: Asynchronous Machine SI Units' Block 2: 'Series RLC Branch2

This is a common issue when using specialized power systems. Inductors are modelled as current sources and cannot be in series ...

The following two blocks cannot be connected in series: Block 1: 'A_stator: Asynchronous Machine SI Units' Block 2: 'Series RLC Branch2

This is a common issue when using specialized power systems. Inductors are modelled as current sources and cannot be in series ...

3 månader ago | 0

Answered

Closed loop discrete PI controller

Hello, please use the references on this page to dive deeper into designing closed loop control for boost converters. https://...

Closed loop discrete PI controller

Hello, please use the references on this page to dive deeper into designing closed loop control for boost converters. https://...

3 månader ago | 0

| accepted

Answered

This is a picture of dfig controller in older version of matlab . in new version fcn block is not available i want represent these transformations what should i do?

Hello, this functionality can still be used, if in a slightly different block. Here are all user defined blocks that you can c...

This is a picture of dfig controller in older version of matlab . in new version fcn block is not available i want represent these transformations what should i do?

Hello, this functionality can still be used, if in a slightly different block. Here are all user defined blocks that you can c...

3 månader ago | 0

Answered

Long simulation time by combining BEV and PV modelling in SIMULINK

Hello Hamizah, thank you for sharing your model. I can give you some specifics now. The first issue is that the battery is im...

Long simulation time by combining BEV and PV modelling in SIMULINK

Hello Hamizah, thank you for sharing your model. I can give you some specifics now. The first issue is that the battery is im...

3 månader ago | 0

| accepted

Answered

Is there any code for calculation for Distribution of Relaxation Times (DRT) in Time domain for battery data?

Out of the box, there is not a quick way to do this. However, there are tools such as the controls system toolbox, system ident...

Is there any code for calculation for Distribution of Relaxation Times (DRT) in Time domain for battery data?

Out of the box, there is not a quick way to do this. However, there are tools such as the controls system toolbox, system ident...

3 månader ago | 0

Answered

I need 6 pulse thyristor logic in formula or blocks

You can right click the block and select Mask-> look under mask to see the implementation logic.

I need 6 pulse thyristor logic in formula or blocks

You can right click the block and select Mask-> look under mask to see the implementation logic.

3 månader ago | 0

| accepted

Answered

Connecting Ideal Translational Motion Sensor for velocity measurement in Simscape

Hello Sudeep, it looks like there is a "short circuit" between your force source in and out ports. The 2 port mass block makes...

Connecting Ideal Translational Motion Sensor for velocity measurement in Simscape

Hello Sudeep, it looks like there is a "short circuit" between your force source in and out ports. The 2 port mass block makes...

3 månader ago | 0

| accepted

Answered

Modeling RG220 coaxial cable using a PI section line

Hello, the power line parameters tool box determines paramter predominantly from geometry, and doesn't need all information on ...

Modeling RG220 coaxial cable using a PI section line

Hello, the power line parameters tool box determines paramter predominantly from geometry, and doesn't need all information on ...

4 månader ago | 0

Answered

for the reading pwm, what is the unit of the 200 in the block? because it can be tune more than 255.

Simulink by default can tune a constant block to any value, it does not know that the input must be limited to 255 unless you sp...

for the reading pwm, what is the unit of the 200 in the block? because it can be tune more than 255.

Simulink by default can tune a constant block to any value, it does not know that the input must be limited to 255 unless you sp...

4 månader ago | 0

| accepted

Answered

Matlab Code for PV array with bypass and blocking diodes

Hello Oghenero, unfortunately, this forum is specifically for questions about MathWorks tools, not equations that are programmi...

Matlab Code for PV array with bypass and blocking diodes

Hello Oghenero, unfortunately, this forum is specifically for questions about MathWorks tools, not equations that are programmi...

4 månader ago | 0

Answered

Asynchronous Machine runs in reverse when no voltage is applied.

The issue is that you are applying a non zero torque to the machine. This is a constant torque which will put a rotational forc...

Asynchronous Machine runs in reverse when no voltage is applied.

The issue is that you are applying a non zero torque to the machine. This is a constant torque which will put a rotational forc...

4 månader ago | 0

| accepted

Answered

Unable to connect input of modeled PMSM to inverter output

Hello Anwesha, you can start here and do not need your own equations: https://www.mathworks.com/help/physmod/sps/ug/three-phase...

Unable to connect input of modeled PMSM to inverter output

Hello Anwesha, you can start here and do not need your own equations: https://www.mathworks.com/help/physmod/sps/ug/three-phase...

4 månader ago | 0

Answered

trying to replicate the paper :"Thermal Impacts on the Performance of Nanoscale-Gap Thermophotovoltaic Power Generators"

If you need help learning to convert an equation into matlab code, or with plotting, please take this free introductory course t...

trying to replicate the paper :"Thermal Impacts on the Performance of Nanoscale-Gap Thermophotovoltaic Power Generators"

If you need help learning to convert an equation into matlab code, or with plotting, please take this free introductory course t...

4 månader ago | 0

Answered

Why is the Double Acting Actuator not working?

Hello Raphael, there needs to a bit more information in this model for the simulation to know what to do. When you model fluid...

Why is the Double Acting Actuator not working?

Hello Raphael, there needs to a bit more information in this model for the simulation to know what to do. When you model fluid...

4 månader ago | 1

| accepted

Answered

How to display different frequencies all at once onto the Spectrum Analyzer in Simulink?

Hello Kei, the first issue is how the sin is being generated. The blocks you are using package the sine output into frames, so...

How to display different frequencies all at once onto the Spectrum Analyzer in Simulink?

Hello Kei, the first issue is how the sin is being generated. The blocks you are using package the sine output into frames, so...

4 månader ago | 0

| accepted

Answered

Three phase time varying load

The issue is how your circuit is set up. You need a snubber resistor to ground (for all three phases) because you can't have tw...

Three phase time varying load

The issue is how your circuit is set up. You need a snubber resistor to ground (for all three phases) because you can't have tw...

4 månader ago | 0

Answered

what type of simulations and analysis can be done using Simulink on an electric motor, battery and motor contoller

Please start with this example: https://www.mathworks.com/help/physmod/sps/ug/three-phase-pmsm-drive.html;jsessionid=973818b691b...

what type of simulations and analysis can be done using Simulink on an electric motor, battery and motor contoller

Please start with this example: https://www.mathworks.com/help/physmod/sps/ug/three-phase-pmsm-drive.html;jsessionid=973818b691b...

4 månader ago | 0

Answered

Transfer function of full bridge inverter and LLC circuit.

As there are switching devices, you either need to use averaging techniques to extract it analytically (do it by hand) or you ca...

Transfer function of full bridge inverter and LLC circuit.

As there are switching devices, you either need to use averaging techniques to extract it analytically (do it by hand) or you ca...

5 månader ago | 0