Hello, everyone. Anyone know how to set power generated by the synchronous generator in PSCAD? I tried many ways, but don't understand what determines the limit of generated power.
You can not do it directly. The generator has to be coupled to a turbine (check the elements in the appropriate library), which has to be controlled by a governor.
You can set the power generated at the governor level.
If you are merely using the synchronous generator module without turbine coupling, then at best you can set the generator input shaft torque - not the power.
Thanks a lot, Sanjoy Roy. And I tried to use models of governor and turbine with my generator too, but I don't find the parameter in these blocks that responsible for generated power. I add the screenshot of full model of my generator.
Thank you for advise and help. But the question remains open...
Because I work in this program not the first day and make my own model already. I used all blocks, tried to delete some blocks and etc - but the result is always the same.
I'm not sure about the system on the right hand side of the transformer. If it is a load then you can simply increase the load. If it is another system, then you can simply change the initial conditions of the machine, i.e. Terminal Voltage Phase at Time =0- (Pheta). This means that you need to know the power flow of your system before you can set the value. I have implemented Kundur's two area system (based on his book page 813) in PSCAD and I set the initial values of voltage magnitude and phase of the generators as same as the values given in the book. This way I got the proper power flow.
Follow steps below to change active and reactive powers:
Synchronous machine>>>Initial Condition
By changing the 'Terminal Voltage Phase at Time=0', you will be able to adjust the active power.
By changing the 'Terminal Voltage Magnitude at Time=0', you will be able to adjust the reactive power.
Experts from PSCAD NOTE:
Under 'Initial conditions' set the
Terminal voltage magnitude (to get the right Q) and
Terminal voltage phase (to get the right P flow).
It may prove to be difficult to get exact P and Q values in a complex case with many generators and load busses. The initial values in such a case must be
Hello, Alisher, your best bet in controlling the power generated is your phase angle and the terminal voltage. That's how I does mine. Go to the generator initial settings, input your terminal voltage in pu, and also the phase angle in rad or degree.