Answered
How can I set the parameter ioc (prior open circuit current) of the supercapacitor block as a real-time variable parameter?
Parameter Writer is not supported in this context because it is used to initialize the block. The workarounds are: Do a calibr...

4 months ago | 0

Answered
How can i build a ZIP Load with the use of Specialized Power System Library components?
A Three-Phase Dynamic Load would probably do it. Alternatively you can build a custom implementation using other fundamental com...

4 months ago | 0

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Using small transformer for large generator
In the IEEE 39-bus system example, each transformer is assigned a default rating of 100 MVA primarily for modeling consistency a...

4 months ago | 0

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Answered
I want to know how to change the load in my solar panel model PV in simulink
The subsystem called Scenario is used to define the PV/load profile.

4 months ago | 0

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How can i simulate a weak grid and also know/ calculate the SCR ratio and X/R ratio?
To achieve the required short circuit ratio and X/R ratio, you need to scale the grid source impedance, transmission line and tr...

4 months ago | 0

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Answered
Any one with an idea how the PI gain values used in the many VSC control examples in Matlab have been derived?
There is no general rule used in shipping examples for tuning the controller. Some are tuned based on frequency response, some u...

4 months ago | 0

Answered
How to control a fixed desired current in a 3-phase Interleaved Buck converter?
The output current looks stable. If you want to control the output current to a specific value, then a control algorithm should ...

4 months ago | 0

Answered
Battery temperature output not working in Simulink hybrid energy system model – need help integrating real-time thermal feedback for control logic
You can use Simscape Electrical or Simscape Battery for electro-thermal simulations. All battery blocks implemented in Sismcape ...

4 months ago | 1

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Answered
PMLSM Controller Over Active
There are a few things you can try. Increase the inverter switching frequency (in the example 2 kHz is used) and reduce the fun...

4 months ago | 0

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Answered
Which trick is used to adapt the PI gains calculated in per unit to work in Simulink if the input and output to the controller are all in per unit, but the plant is in physical units?
If you have a per unit controller, where input and output are in per unit. The only thing that is needed to go back to SI is the...

4 months ago | 0

Answered
Hello everyone, please help me with this error Error:Invalid
The problem is the way you pass the data in the From Workspace block. What you want is to have P as a time varying signal of dim...

4 months ago | 0

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I don't understand what port 1 of the Two-Quadrant DC/DC Converter is and what should I connect it to?
This is a two quadrant DC-DC converter operating in first and second quadrant. It has two sets of DC connections. However, becau...

4 months ago | 0

Answered
simscape noise on scope display
This is not ho physical blocks are working. Think about a real-world system where you have a DC voltage source. To display the v...

4 months ago | 0

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Matlab simulink components not conecting problem
It is not possible to directly connect Simscape blocks to Specialized Power Systems. It is better to use only one technology. Yo...

4 months ago | 0

Answered
In a paper, I saw that a 'Convert' block (not very clearly labeled) was used to connect an AND gate to a Voltage Measurement block.
Not sure what the question is. The Convert block in the image is a Data Type Conversion. The output of the AND block is boolean ...

4 months ago | 0

Answered
How to find the switching losses (reverse recovery losses) of the antiparallel diodes that are in a power converter?
Without a model is difficult to give specific advice. For IGBTs, it makes sense to see a decrease in switching losses when addin...

4 months ago | 0

Answered
How do i tune my STATCOM to fit my model?
Tuning the PI gains in the STATCOM can help with waveform ripples but may not address the core issue if both controllers are act...

4 months ago | 0

Answered
How does the PWM generator(3-level) block in Simulink work?
For linear operation of this block, the magnitude of Uref must be between −1 and +1 as per the documentation page. If the Uref ...

4 months ago | 0

Answered
How to find Thevenin Impedance at Bus 1 in a Two-Area System with Synchronous Machines?
Is it possible use the Impedance Measurement Tool. The Impedance Measurement Tool can be used in networks containing synchronous...

4 months ago | 1

Answered
Why do I get Fuel Cell stack - hydrogen partial pressure function calculation error?
Without the model we can not give a definitive answer. However, this points to a problem with the parameterization. Probably the...

4 months ago | 0

Answered
How to make a power divider control for battery supercapacitor work on the HESS PLTS Stand alone system?
In a battery-supercapacitor HESS, the time constant of the low-pass filter determines the frequency split between the battery an...

4 months ago | 0

Answered
PV array with DC/DC Buck Converter
Without the actual model we cannot point to any specific problem. It may be parameterization or design of MPPT. A good starting ...

4 months ago | 0

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How to Model a DC Motor in State-Space with Load Torque Disturbance Rejection?
The state-space can be constructed as xdot=A.x+B.u+w, where w is the disturbance. If the disturbance is known a coordinate trans...

4 months ago | 0

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Answered
issue on Machine losses Calculation and inverter loss calculation
First, the N-Channel IGBT block may be too complex for this kind of study. The N-Channel IGBT block is a high-fidelity represent...

4 months ago | 0

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Dual Active Bridge Control model
Without a model, we can provide only general guidance. Some other resources that have not been mentioned and can be useful: htt...

4 months ago | 0

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Why output results are coming 50 Nm when i checked pmsm block .actualy ipmsm machine model has to be generate 60 Nm for 300 phase current( id is -82 Amp, iq is 268 Amp).but i
Without a model is difficult to debug and point to a specific root cause. There can be a couple or things that can prevent the t...

4 months ago | 0

Answered
How can I integrate a phasor-based DFIG wind farm model with a discrete PV plant in a single power system simulation
If fast-switching dynamics are crucial for your study, consider converting the DFIG wind farm model to time domain. If your focu...

4 months ago | 0

Answered
simulink dc dc buck converter output not coming as desired
The issue concerns the fundamental sampling period. The timer period is set to 50 kHz (20 microseconds), and the sampling time m...

4 months ago | 0

Answered
Can't Visualize IGBT Overlap in 3-Phase Inverter Simulation (Simulink / Simscape)
In the case of IGBTs, it is possible to switch ON the opposite IGBT while the tail current is still flowing without causing dama...

4 months ago | 1

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Answered
How to generate two PWM signals with 180° phase shift in Simulink (for controlling MOSFETs)
Simulink provides an efficient PWM block that can be used to generate an ideal pulse width modulated signal corresponding to inp...

4 months ago | 0