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Chapter 4 Wizards Innovation Series Medium Voltage GP Type - G Drives GEH-6385
Speed Regulator Tuneup: Speed Regulator Mode
• Manually tune-up individual gains
• 1
st
order closed loop response
• 2
nd
order closed loop response
• 2
nd
order closed loop response with stiffness filter for load disturbances
Speed Regulator Tuneup: Manual Regulator
Tuneup
Enter the requested gains based on the diagram below:
Speed
Feedback
Speed
Command
Σ
ΣΣ
Σ
+
-
Σ
ΣΣ
Σ
+
-
integral
gain
proportional
filter
proportional
command gain
proportional
feedback gain
Σ
ΣΣ
Σ
+
+
Integrator
system
inertia
2
π
ππ
π
60
net
gain
Filter
Torque
Command
System Inertia was previously measured or entered.
Speed Regulator Tuneup: 1st Order Response
Calculate speed regulator gains based on 1
st
order closed loop response and set the
speed feedback filter to 10 times the bandwidth.
• Speed Regulator Bandwidth in radians/sec
Speed Regulator Tuneup: 2nd Order Response
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 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.