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GEH-6385 Reference and Troubleshooting, 2300 V Drives Chapter 4 Wizards
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4-41
Speed Regulator Tuneup: 2nd Order Response
with Stiffness Filter
Calculate speed regulator gains based on 2
nd
order closed loop response and set the
speed feedback filter to 10 times the bandwidth.
• Speed Regulator Bandwidth in radians/sec
• Speed Regulator Damping Ratio
(value of 1 is critically damped)
• Speed Regulator Stiffness Filter
(stiffer value is larger and 1 produces a 2
nd
order response)
• Speed Regulator Tracking Bandwidth in radians/sec
(bandwidth for coordinated section so reference errors are identical, practical
limits are ω/2d to 2ω, where 0 is unused)
Note If Tracking Bandwidth is equal to Regulator Bandwidth the speed regulator
will give a 1
st
order response to a step input and a 2
nd
order response is given for a
Tracking Bandwidth of 0.
Speed Regulator Tuneup: Calculate Speed
Regulator Gains Command
This will perform the speed regulator gain calculations based on the previous
information of inertia, regulator mode, bandwidth, damping and stiffness.