Regarding the Powersysdomain block in SimPowerSystems

Hi

I am building my own PMSM drive. When I started looking into the existing drive available with simulink library, I can understand everything, except this particular block. I understand this is to load he inverter, and the voltages can be accessed (in simulink signals) using the "From" and "Goto" tags, but I am unable to find the tag names specific to the block.

I would really appreciate help on the below two questions: 1) Is there any documentation available on the Powersysdomain block? Is the block code accessible in public domain?

2) How to access the voltages via the "from" block, and feed the current via the "Goto" block? Does the powergui block play any part in this?

[Antonio]

I have the same question.

Answer 1

[A Jenkins]

As far as I know, the powersysdomain is proprietary and not friendly to tinker with.

I have taken three approaches to custom models in the past:

a) Modify an existing SimPower block, using the signals that are already present (which you have the From and GoTo tags for).

b) Create a simulink model and interface it to the other SimPower blocks on the external A,B,C connections using (1) "Voltage Measurement" blocks to get the voltage and (2) "AC Current Source" blocks to drive the current.

c) Create the whole model in simulink blocks only (including loads, other machines, etc) so that you are free to make changes however you chose. You can find examples and textbook reference on the file exchange. http://www.mathworks.com/matlabcentral/fileexchange/9941-dynamic-simulations-of-electric-machinery-using-matlabsimulink