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Operation principle and hardware description 29
3
Operation principle and
hardware description
Contents of this chapter
This chapter describes the operation principle and the construction of the wind turbine
converter.
Operation principle
The ACS880-87LC is a four-quadrant, cabinet-mounted liquid-cooled converter intended
for full power conversion turbines with an induction generator or a permanent magnet
generator. The converter is connected between the generator stator and the grid. The
converter can be installed up in the nacelle or down on the ground level.
The converter consists of back-to-back connected cubicles that contain the grid-side
converter modules, generator-side converter modules, LCL filter, terminals or grid busbars
for grid cables and generator cables, internal control circuits, external control cable
terminals, auxiliary circuits and external auxiliary power supply terminals.
Summary of Contents for ACS880-87LC-4000A/4021A-7
Page 4: ......
Page 10: ...10 ...
Page 17: ...Safety instructions 17 1 3 2 4 5 6 7 ...
Page 18: ...18 Safety instructions 8 9 ...
Page 28: ...28 Introduction to the manual ...
Page 52: ...52 Mechanical installation ...
Page 66: ...66 Planning the electrical installation ...
Page 74: ...74 Electrical installation Diagrams for the customer connections are presented below ...
Page 75: ...Electrical installation 75 optional Fast shutdown ...
Page 85: ...Maintenance 85 b c a Air flow direction 2 3 4 6 ...
Page 87: ...Maintenance 87 2 5 4 ...
Page 88: ...88 Maintenance 7 Arrow indicating the air flow direction 5 6 6 ...
Page 90: ...90 Maintenance Air flow circulation b a ...
Page 106: ...106 Maintenance ...
Page 124: ...124 Control units of the converter ...
Page 126: ...126 Dimension drawings ...
Page 127: ...Dimension drawings 127 ...
Page 128: ...128 Dimension drawings ...
Page 142: ...142 Cooling and heating ...