modelPowerSystem
Information
This model assembles a power system with a linear topology, obtained by connecting N power generators in a linear network with equal transmission lines, and with a load connected to each generator. For simplicity, the loads are described by prescribed active power consumptions.
The power transfer between the different generators is computed by the classical swing equation theory. An integral controllers provides secondary frequency control.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | N | 1 | Number of generators in the network |
| Integer | M | 4 | Number of volumes in the superheater models |
| Power | P_nom | 500e6 | Nominal power of a single generator |
| Frequency | f_ref | 50 | Reference network frequency |
| AngularVelocity | omega_ref | 2*pi*f_ref | |
| SI.Time | T_sfc | 20 | Time constant of secondary frequency control |
| Real | P_d | 0.5*P_nom/omega_ref | Power dissipation coefficient |
| Real | droop | 0.10 | Average network droop |
| Real | pi | Modelica.Constants.pi |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Frequency | f | Network frequency measured at node 1 for secondary frequency control | |
| Power[N] | P_load | ones(N)*P_nom | Active power consumed by loads - replace the default binding |
| Power[N,N] | P_ex | Power going from generator i to generator j | |
| Power[N,N] | P_diss | Power dissipated by the generators i and j | |
| Power[N] | P_a | Net active power out of generator i | |
| Power | P_f | P_nom | Power factor of a single trunk of transmission line |
| Power | P_sfc | Additional power request for secondary frequency control | |
| Generator[N] | generator |