WTC3 Hub Module 2
Hydraulic pitch
control module
for wind
Achieve reliable control of hydraulic pitch systems using
proportional valves with KK Wind Solutions’ technology,
dedicated to wind.
KK Wind Solutions’ specialized WTC3 Hub Module ensures reliable
control of the pitch position in wind turbines.
Based on our long experience in electrical systems for wind turbines,
our 2nd generation module for pitch control is constructed and tested
to perform reliably, contributing to lowering O&M costs for your wind
power plant.
KK Wind Solutions’ field-tested technology enables control of up to
three proportional valves, controlling the current in the solenoids of
the proportional valve directly. As such, the module eliminates the
need for proportional valves within built-in control electronics.
The module can use both proportional valves with slider feedback
(differential transformer) and without. The module is also able to use
both linear position sensors, typically build into the hydraulic pistons,
or simple 4-20mA encoders.
The module can be controlled via robust CAN communication, in
which the main controller only needs to set the target pitch angle and
the module will control the values accordingly.
To maximize safety, the module has built-in functionality for
monitoring safety valve contactors.
Key benefits
Dedicated design for
reliable operation in wind
turbines
Single module for control
of hydraulic pitch system
with three blades
Interface for linear
position sensors and
absolute encoders
Uses robust CAN
communication for hub to
nacelle connection
Interface to proportional
values with or without
differential transformer
feedback.
Flexible control
Other technical
specifications
•
• Two axis accelerometer for rotor azimuth angle calculation
• Equipped with Ethernet interface for high speed
data logging
• Power supply 32VAC ±30%
• Capable of self-diagnostics
• Power supply monitoring
The WTC3 Hub Module is designed to enable control of a number of
pitch system designs.
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•
Control of three wind turbine blade pitch positions using
proportional valves
Control of three proportional valve slider positions for valves
with differential transformer
Control of six proportional valve solenoid currents (two for each
valve/blade)
Excellent connectivity
The module provides excellent connectivity including additional
inputs and outputs which can be used for pressure sensors and
lubrication systems.
•
•
•
•
•
•
•
2 x digital outputs
2 x digital inputs
6 x analog current input (4 - 20 mA)
6 x Pulse-Width Modulated output with current measurement
and overload protection
3 x Slide position input (Differential transformer)
3 x Linear position sensor interface
CAN interface for controlling set points and reading data
Wide environmental range of operation
The design of the module means it can be stored and operate in
harsh conditions.
Temperature limitations:
Operation Storage: -40oC to 70oC
-40oC to 85oC
kkwindsolutions.com
Contact
KK Wind Solutions A/S
Bøgildvej 3
DK-7430 Ikast
+45 96 92 43 00
main@kkwindsolutions.com
www.kkwindsolutions.com
About us
WTC3 Hub Module (V5514)
Building on more than 35 years of
experience in electrical systems
for wind, KK Wind Solutions’
capabilities span development of
state-of-the-art technologies, high
quality lean manufacturing, costefficient supply chain solutions
and flexible service of turbines.
©2016 KK WIND SOLUTIONS A/S. ALL RIGHTS RESERVED. CONTENT MAY NOT BE REPRODUCED WITHOUT WRITTEN PERMISSION FROM KK WIND SOLUTIONS A/S.
03/2016-EN