Software
E-TRAN Plus
“E-TRAN Plus for PSCAD” and “E-TRAN Plus for PSS/E” are add-ons to E-TRAN (and are sold/licensed separately).
E-TRAN Plus for PSCAD
is a set of models which allow large PSCAD cases to be broken up and run using parallel processing on multiple cores (on 1 computer) or on multiple computers that does the following:
- Allows a large PSCAD case to be broken up into many PSCAD cases so they can be run on many cpu/cores or onto multiple computers
- Allows each subsystem/process to be run with a different simulation time step
- Allows each subsystem/process to be built with a different version of PSCAD
- Allows each subsystem/process to be built with a different version of Fortran compilers
- Results in identical results as an original PSCAD case (run on one cpu)
A large PSCAD case can be broken up electrically in the following ways:
- Where any Bergeron traveling wave transmission line or cable is used
- At any transformer location (using the scaling transformer model)
E-TRAN Plus for PSS/E
is a hybrid simulation interface between PSCAD and PSS/E transient stability programs. It allows network equivalents in PSCAD to communicate with a PSS/E transient stability time domain simulation. Basically the PSCAD side system equivalent gets updated from PSS/E’s voltage, angle and frequency, and the PSS/E side gets updated from what happens in PSCAD. Once the hybrid simulation is setup, both programs run in parallel, communicating and updating each other.
Hybrid simulation allows:
- Dynamic system equivalents in PSCAD
- Accurate detailed models running in PSSE
- Different versions of PSSE running simultaneously