Slip-Energy Recovery Drive VARSPEED


This example shows a large pump storage system called VARSPEED.

The rotor of the induction machine is supplied by a 12-pulse cyclo-converter.

The 72 thyristors are considered without any assumptions.

Such a system is able to regulate active and reactive power independently. The drive can work as a power generator as well as a pump.





The simulation illustrates the response of the motor/generator after a sudden modification of the reactive power injected to the AC grid.

It also shows the high stability of the VARSPEED in transients.

Many other aspects can be analyzed with SIMSEN: faults and protection, stability towards the network, efficiency.