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9.0 Wind Turbine Operation
NOTICE: Use of the material contained in this document is subject to the warning on page Iv and the disclaimer on page v of this document.
DOC012R02 AOC 15/50 User Manual Nov 2001
71
Instrumentation
60hz
50hz
action
reset when cleared
status lights
Grid parameters
grid monitor
over voltage:
400-540V
350-450V
disconnect and park
automatic
grid monitor light
under voltage:
380-460V
300-400V
disconnect and park
automatic
grid monitor light
(response time)
adj 1-10secs
adj 1-10secs
phase loss
disconnect and park
automatic
grid monitor light
phase reversal
disconnect and park
automatic
grid monitor light
Rotor Speed
2 speed sensors on
high speed shaft
Rotor nominal:
1800rpm
1500rpm
if no faults connect to grid
turbine on line
Rotor full load:
1840rpm
1535rpm
Rotor overpower: 1860rpm
1550rpm
disconnect and park
automatic
rotor overpower
Rotor over-speed
1875rpm
1560rpm
disconnect and park
manual
rotor overspeed
Rotor under-speed: 1760rpm
1460rpm
disconnect and park
automatic
(freewheel option)
1800rpm
1500rpm
disconnect and freewheel
automatic
(coast up option)
< 50rpm after 1 min?
< 50rpm after 1 min?
disconnect and park
automatic
rotor overspeed flashing
Wind Speed
2 anemometers
wind in range
11mph - 50mph
11mph - 50mph
if no faults release brake
low wind
8mph
8mph
disconnect and park or freewheel
automatic
high wind
50 mph
50 mph
disconnect and park
automatic high wind speed
Power output
watts transducer
low power
% < set points
% < set points
disconnect and park
automatic
from power curve
from power curve
Brake status
brakes applied
plc signal
disconnect and park
automatic
brakes applied
parking brake fault
current sensor
disconnect and park
manual
brakes applied flashing
Generator Temperature
3 NC thermostats
over temperature
145 deg C
145 deg C
disconnect and park
automatic
generator thermal alarm
Table 9.1-2 PLC control system monitoring