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36 Operation principle and hardware description
Overview of power and control connections
The diagram shows the power connections and internal control interfaces of the wind
turbine converter. See also section
the control unit are reserved for internal use and communication.
Slots 1...3
PSL
BCU control unit
L1
L2
L3
Grid-side converter
Circuit boards
CH0
CH1
CH2
CH3
RDCO (slot 4)
BCON
External control via Ethernet
Both BCU control units are connected to Ethernet switch
(page 37). The option module slots on
CH0
Slots 1...3
PSL
BCU control unit
Generator-side converter
CH1
CH2
CH3
RDCO (slot 4)
BCON
U2
V2
W2
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