50 Start-up with low voltage stator
If the grid-side converter generates power to the DC chopper and the UDC voltage does not reach
PULSE VALUE [V], then the DC chopper test is passed.
When the test is passed, restore parameter 137.02 MOT POWER
LIMIT (ISU) to 150% and parameter 113.01 DC REF MAX to
1073.39 V.
137.02 MOT POWER
LIMIT
113.01 DC REF MAX
Rotor-side converter test
Disable the main circuit breaker function by setting parameter 21.02
DISABLE MCB CLOSE to YES (the rotor-side converter
synchronizes to the grid but does not close the main circuit breaker).
Note: Parameter 21.02 value is cleared automatically if the control
mode is changed to remote or a fault is detected.
21.02 DISABLE MCB
CLOSE
Check that the wind turbine rotates the rotor speed within acceptable
range (approximately 1200…1700 rpm).
01.01 MOTOR SPEED
Start the rotor-side converter with the DriveWindow START button.
The control program checks the hardware connections automatically.
In a fault situation a fault message(s) is displayed:
WRONG ENCODER DIR
WRONG GRID DIR
GRID SYNC FAILED
WRONG ROTOR PHASING
Monitor the most important signals as explained below.
For the possible causes and remedies, see ACS800-67(LC) doubly-
fed induction generator control program firmware manual
[3AUA0000071689 (English)].
If everything is in order, the doubly-fed induction generator control
program continues to identify the generator magnetizing reactance.
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