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Term/abbreviation
Frame (size)
Generator-side
converter
Grid-side converter
I/O
IGBT
Intermediate circuit
LCL filter
Main circuit breaker
MBC
NETA-21
Parameter
PE
PLC
PSL
PROFIBUS®,
PROFIBUS DP,
PROFINET IO
R9iLC
UPS
Wind turbine converter
Wind turbine system
WTC
ZMU
Explanation
Refers to converter modules that share a similar mechanical construction, for
example:
• frame 5×R9iLC + 6×R9iLC includes five R9iLC generator-side converter
modules and six R9iLC grid-side converter modules.
The converter part that is connected to the generator stator and controls the
generator operation. It converts the AC power from the generator to the
converter DC bus.
A converter that is connected to the grid and is capable of transferring energy
from the converter DC link to the grid and vice versa.
Input/Output
Insulated gate bipolar transistor; a voltage-controlled semiconductor type widely
used in various converters because of their easy controllability and high
switching frequency.
See
DC
link.
Inductor-capacitor-inductor filter at AC side of the grid-side converter.
Attenuates harmonics.
Electrically-controlled main switching and protecting device. A withdrawable
breaker can also be used as the main disconnector.
Main breaker cubicle containing main switching and disconnecting devices,
power terminals, etc.
Remote monitoring tool
User-adjustable operation instruction to the converter, or signal measured or
calculated by the converter.
Protective Earth
Programmable logic controller
Power stage link
Registered trademarks of PI - PROFIBUS & PROFINET International
Converter module size, see
Uninterruptible power supply
A converter for controlling AC generators in wind turbine applications.
Wind turbine system consists of the wind turbine, wind turbine converter,
generator etc.
Wind turbine controller. The wind turbine controller controls the whole wind
turbine system.
Memory unit attached to the BCU control unit connector X205 MEMORY UNIT.
Introduction to the manual 27
Frame
(size).
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