Overview

In 12-pulse operation, two SIMOREG converters are supplied with voltages displaced by 30 degrees, resulting in a reduction in harmonics. Each SIMOREG receives half the total current. One unit operates under speed control and the other operates under current control. Current setpoints are transferred from the first converter to the second via the peer-to-peer connection.

Smoothing reactors must be installed in the DC circuit for 12 - pulse operation.

Calculation of smoothing reactor:

One smoothing reactor is needed for each of the two converters. This is a twin-value reactor, i.e. the reactor inductance is defined for two current values.

The reactor is dimensioned thermally according to the rms value of the reactor DC current.