24 Rockwell Automation Publication 750-RM100A-EN-P - August 2019
Chapter 2 AC Line Tuning
The converter does not have AC line source-specific gains. In most cases, the
bandwidth for the high impedance line source is sufficient when connected to a
robust source. The actual current regulator gains are scaled according to the
difference in system impedance. If higher performance is desired when connected
to the robust source, you can use datalinks to change the voltage regulator
bandwidth in parameter 13:55 [Volt Reg BW], and the current regulator
bandwidth in parameter 13:75 [Cur Reg BW], based on which source the
converter is using.
Power Loss Source Switching
When the drive is configured for generator switchover, consider how the drive
reacts to a power loss event. Use the power loss ride-through feature to pause
converter modulation and allow for switching from AC Line A to AC Line B and
vice versa. Use the application requirements and system dynamics to configure
the power loss action and power loss mode for the inverter. For example, large
inertia loads could be decelerated to keep the drive powered for the time required
for the generator to come online and start producing power. If there is not
sufficient inertia to keep the drive alive during the switchover, you could use a
separately sourced 24V DC supply to keep the drive powered during this time.
For information about configuring the drive for a power loss, refer to the
PowerFlex Drives with TotalFORCE Control programming manual, publication
750-PM100
.
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