Siemens SINAMICS PERFECT HARMONY GH180 - Page 50

various other control routines, before being passed on to the modulator. These control routines
include:
• Dead-time compensation to compensate for dead-time in the switching of the upper and
lower IGBTS of each pole in a power cell.
• Peak reduction for third-harmonic injection to maximize drive output voltage, and for drive
neutral-shift during transparent cell-bypass.
• Voltage commands to produce losses for dual-frequency braking.
Feed-forward Compensation
Transient response of the 󹪞ux and torque regulators is improved with the use of feed-forward
(FF) compensation as shown in Figure Vector Control Algorithms.
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Figure 4-4 Vector Control Algorithms
NXGPro+ Control Description
4.7 Control Modes
NXGPro+ Control Manual
48 Operating Manual, A5E50491925A