Power switchgear cabinet of a device for producing electric energy
The invention relates to a power switch cabinet of a device for producing electric energy. The technical object of obtaining optimum scalability and cooling of a power switch cabinet despite little space being required is achieved according to the invention in that the power switch cabinet has a machine connection, a power module and a mains connection, wherein the power module has a machine converter, a mains converter, a direct voltage intermediate circuit and a chopper, and the arrangement of the components substantially corresponds to the direction of the power flow.
1. Power switch cabinet of a device for producing electric energy, wherein the power switch cabinet comprises
a machine connection,
a power module and
a mains connection,
wherein the power module has
a machine converter,
a mains converter,
a direct voltage intermediate circuit and
a chopper,
and the arrangement of the components substantially corresponds to the direction of the power flow.
2. Power switch cabinet according to claim 1 , wherein the power switch cabinet further has a decentralised control unit.
3. Power switch cabinet according to claim 1 , wherein the components are arranged substantially linearly in the sequence of:
machine connection,
machine converter,
direct voltage intermediate circuit with chopper,
mains converter, and
mains connection.
4. Power switch cabinet according to claim 1 , wherein the components are arranged substantially in the vertical direction, in particular from top to bottom.
5. Power switch cabinet according to claim 1 , wherein the power switch cabinet is connected via associated secondary windings of one or a plurality of transformers to the mains.
6. Power switch cabinet according to claim 1 , wherein the power module has a plate-shaped direct current bus bar, which on a first side has power switches and a chopper and on a second side capacitors of the direct voltage intermediate circuit.
7. Power switch cabinet according to claim 1 , wherein the power switch cabinet has a dU/dt filter.
8. Power switch cabinet according to claim 1 , wherein the power switch cabinet has a line choke.
9. Power switch cabinet according to claim 1 , wherein the power switch cabinet upstream of the mains connections and/or the machine connections, has devices for electrical isolation of the power switch cabinet.
10. Power switch cabinet according to claim 1 , wherein the power switch cabinet has a current and/or voltage limitation device.
11. Power switch cabinet according to claim 1 , wherein the power switch cabinet has an emergency power supply.
12. Power switch cabinet according to claim 1 , wherein the power switch cabinet has a cooling device, in particular a heat exchanger.
13. Power switch cabinet according to claim 12 , wherein the cooling device has a heat-pipe.
14. Power switch cabinet according to claim 12 , wherein the cooling device has at least one fan arranged directly below the capacitors of the direct voltage intermediate circuit.
15. Power switch cabinet according to claim 1 , wherein the power switch cabinet is hermetically sealed from the ambient air.
16. Device for producing electric energy, wherein the device comprises a power switch cabinet according to claim 1 .
17. Device for producing electric energy according to claim 16 , wherein the device is designed as a wind turbine with a generator, in particular as a wind turbine of an offshore wind farm.