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Chapter 4 Wizards Innovation Series Medium Voltage GP Type - G Drives G EH-6385
Speed Regulator Tu neup: Speed Regulator Mode• Manually tune-up individual gains
• 1st order close d loop response
• 2nd order closed loop response
• 2nd order closed loop response with stiffness filter for load disturbances
Speed Regulator Tu neup: Manual RegulatorTuneupEnter the req uested gains base d on the diagram bel ow:
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 Tu neup: 1st Order ResponseCalculate speed regulator gains based on 1st order closed loop respon se and set the
speed feedback filter to 10 times the bandwidth.
• Speed Regulator Bandwidth in radians/sec
Speed Regulator T uneup: 2nd Order ResponseCalculate speed regulator gains based on 2nd order closed loop respon se 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 cr itically damped)
• Speed Regulator Tracking Bandwidth in radians/sec
(bandwidth for coordin ated section so reference err ors 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 1st order response to a step input and a 2nd order response is given for a
Tracking Bandwidth of 0.