Simulating a changing load in an electrical power system

I have to simulate a transmission line in an electrical power system. How do I simulate a load if this load is raised every minute?

[Jan]

Please add any details to your question: Are you working with Matlab or Simulink, does "simulate" means real-time processing or do you integrate an ODE?

[nur hadi]

I using simulink..

[Jan]

@nur hadi: I answer questions here in this forum. Sending emails will not increase my motivation to reply.

I have no experiences with Simulink. The lack of answers is a strong indication for an incomplete question. Without the necessary details, a meaningful reply is impossible.

[nur hadi]

I'am using SimPowerSystems in simulink matlab 2010a. I try simulate a constant power load at a bus growing per minutes. Power rate with 0.932 inductive power factor..

Answer 1

[Arnaud Miege]

It sounds like you are using SimPowerSystems. If your load is a resistive load, you may want to try the approach described here to model a variable resistor. You can then use standard Simulink blocks to construct the signal of resistor value as a function of time. If it's not a resistive load, then you need to provide more details.

HTH,

Arnaud

Answer 2

[nur hadi]

yes mr arnaud, I'am using SimPowerSystems in simulink matlab 2010a. I try simulate a constant power load at a bus growing per minutes. Power rate with 0.932 inductive power factor.. can you help me to simulate this..

[Arnaud Miege]

I'm sorry, I don't really understand your question. My background is not in electrical power systems. As I said, if you want to vary the resistive load on your electrical power system, you can use a variable resistor and vary the value of the resistor with time using standard Simulink blocks. Check out the link I provided.

Arnaud

[nur hadi]

ok mr arnaud, thank you very much..

Mr arnaud, do you have friend who have background in electrical power systems..

[Arnaud Miege]

Have you had a look at the demos provided in SimPowerSystems? There are quite a few of them and one of them may be a good starting point for your application.

Help browser -> SimPowerSystems -> Demos

Arnaud

[nur hadi]

I have did it, but I had't find it.. So I try asking someone here to get other answer..

Answer 3

[Yuling]

Hi Nur/Arnaud,

I have tried downloading both 2010a/b and 2009a/b version of matlab and none of them seems to have simpowersystems. I got this folder from my professor and saved it under the matlab folder and still doesn't help. Can you give me some advice?

Thank you in advance

Best, Yuling

[Arnaud Miege]

Where did you download MATLAB from? SimPowerSystems is an add-on to Simulink, which is itself an add-on to MATLAB. So you need to purchase Simulink and SimPowerSystems as well as MATLAB.

Answer 4

[dhrgham]

plz does anyone have matlab simulink of ieee 6 bus test power system model

Answer 5

[Ismael Abdulrahman]

Check this:

https://www.researchgate.net/publication/337943952_PSDAT_Power_System_Dynamic_Analysis_Toolbox

Answer 6

[Aradhana Ray]

Transmission lines are groups of wires, called conductors, that carry electric power from making plant life to the substations that deliver power to customers. At a generating plant, electric power is “stepped up” to numerous thousand volts by a transformer and brought to the transmission line.