Dead Time Comp - GE AV-300i User Manual

Curr regulator
Percent values
CurrP gain %
CurrI gain %
Base values
CurrP base value
CurrI base value
Flux regulator
Percent values
FlxP
FlxI gain %
Base values
FlxP base value
FlxI base value
Vlt regulator
Percent values
VltP gain %
VltI gain %
Base values
VltP base value
VltI base value
REGULATION PARAM

1.4.2 Dead Time Comp

The Dead time comp function allows for compensation of the output voltage distortion due to IGBT voltage
drop and its switching characteristics. Distortion of output voltage may cause non uniform, non smooth shaft
rotation in open loop V/f control or in a closed loop Sensorless Vector control mode errors in speed estimation
especially at very low speeds.Through the two parameters it is possible to set a voltage value and the compen-
sation variation, called Gradient.
Description:
REGULATION PARAM
Dead time comp
Dead time limit
Dead time slope
REGULATION PARAM
N !
OTE
Both parameters are automatically measured during CurrReg autotune procedure.
Ch.1
46
gain %
SAVE PARAMETERS
SAVE PARAMETERS
—————— Function Description ——————
GEH-6641E
Current loop
percentage values:
Gain of the Proportional section as a percentage of the basic value
Gain of the Integral section as a percentage of the basic value
basic values:
Basic value of the Proportional gain
Basic value of the Integral gain
Flux loop
percentage values:
Gain of the Proportional section as a percentage of the basic value
Gain of the Integral section as a percentage of the basic value
basic values:
Basic value of the Proportional gain
Basic value of the Integral gain
Speed loop
percentage values:
Gain of the Proportional section as a percentage of the basic value
Gain of the Integral section as a percentage of the basic value
basic values:
Basic value of the Proportional gain
Basic value of the Integral gain
Value of the voltage compensation
Compensation Gradient