Modular multilevel power converter

Patent metadata

Field	Value
Publication number	US-2020067421-A1
Application number	US-201716487627-A
Country	US
Kind code	A1
Filing date	Feb 21, 2017
Priority date	Feb 21, 2017
Publication date	Feb 27, 2020
Grant date	—

Abstract

A modular multilevel power converter includes first electric components on a first vehicle and second electric components on a second vehicle. The first vehicle and the second vehicle are placed at a spacing distance from each other. The first electric components and the second electric components are electrically interconnected by a plurality of first connecting conductors.

First claim

1 - 16 . (canceled)

17 . A modular multilevel power converter, comprising:
first electrical components disposed on a first vehicle; second electrical components disposed on a second vehicle; said first vehicle and said second vehicle being disposed at a spacing distance from one another; and a plurality of first connecting conductors electrically connecting said first electrical components and said second electrical components to one another.

18 . The modular multilevel power converter according to claim 17 , wherein said first vehicle is a first truck trailer and said second vehicle is a second truck trailer.

19 . The modular multilevel power converter according to claim 17 , wherein:
said first electrical components comprise a series connection of modules, each of said modules having at least two electronic switching elements and an electrical energy-storage device; and said second electrical components comprise at least one electrical coil.

20 . The modular multilevel power converter according to claim 17 , wherein:
said first electrical components are arranged in a first container which is fastened to said first vehicle; and/or said second electrical components are arranged in a second container which is fastened to said second vehicle.

21 . The modular multilevel power converter according to claim 17 , further comprising:
a first electrical interface for connecting up said first connecting conductors, said first electrical interface being arranged at a first end of said first vehicle; and/or a second electrical interface for connecting up said first connecting conductors, said second electrical interface being arranged at a first end of said second vehicle.

22 . The modular multilevel power converter according to claim 21 , wherein:
said first electrical interface comprises a plurality of detachable electrical contact pairs each having a first electrical contact electrically connected to a respective one of said first electrical components and a second electrical contact electrically connected to a respective one of said first connecting conductors; and/or said second electrical interface comprises a plurality of detachable electrical contact pairs each having a first electrical contact electrically connected to a respective one of said second electrical components and a second electrical contact electrically connected to a respective one of said first connecting conductors.

23 . The modular multilevel power converter according to claim 22 , wherein each of said electrical contact pairs is a plug connector.

24 . The modular multilevel power converter according to claim 22 , wherein:
said first contacts of said first electrical interface are electrically connected to said first electrical components by way of first electrical cables which extend, at least in some sections thereof, on an underside of said first vehicle and are guided into an interior space of said first container through recesses formed in an underside of said first container; and/or said first contacts of said second electrical interface are electrically connected to said second electrical components by way of second electrical cables which extend, at least in some sections thereof, on an underside of said second vehicle and are guided into an interior space of said second container through recesses formed in an underside of said second container.

25 . The modular multilevel power converter according to claim 22 , further comprising:
a transformer disposed on a third vehicle; said third vehicle and said second vehicle being disposed at a spacing distance from one another; and said transformer and said second electrical components being electrically connected to one another by way of a plurality of second connecting conductors.

26 . The modular multilevel power converter according to claim 25 , further comprising a third electrical interface for connecting up said second connecting conductors, said third electrical interface being arranged at a second end of said second vehicle and said second connecting conductors being connected to said third electrical interface.

27 . The modular multilevel power converter according to claim 26 , wherein said first electrical interface, said second electrical interface, and said third electrical interface are constructed identically.

28 . The modular multilevel power converter according to claim 25 , further comprising:
a cooling device disposed on a fourth vehicle; said fourth vehicle and said first vehicle being disposed at a spacing distance from one another; and at least one coolant line connecting said cooling device and said first vehicle to one another.

29 . The modular multilevel power converter according to claim 28 , wherein said third vehicle is a third truck trailer and said fourth vehicle is a fourth truck trailer.

30 . The modular multilevel power converter according to claim 19 , wherein:
said at least two electronic switching elements of said modules are connected in a half-bridge circuit; or each of said modules has said at least two electronic switching elements and two further electronic switching elements, said at least two electronic switching elements and said two further electronic switching elements being connected in a full-bridge circuit.

31 . The modular multilevel power converter according to claim 17 , wherein said first vehicle is one of two first vehicles each carrying said first electrical components, and wherein said two first vehicles are respectively assigned to a different phase of the multilevel power converter.

32 . A reactive-power compensation system, comprising a modular multilevel power converter according to claim 17 .

33 . A method for influencing electric current by way of a modular multilevel power converter, the method comprising:
transmitting the electric current from a power-transmission network to first electrical components disposed on a first vehicle and to second electrical components disposed on a second vehicle, wherein the first electrical components and the second electrical components are constituent parts of the modular multilevel power converter; and influencing the electric current by the modular multilevel power converter with the participation of the first electrical components and of the second electrical components.

34 . The method according to claim 33 , wherein the first electrical components are arranged on a first vehicle and the second electrical components are arranged on a second vehicle.

35 . The method according to claim 33 , which comprises influencing the electric current to carry out a reactive-power compensation of the electrical current.

Assignees

• Siemens Ag

Inventors

• Mangold Thomas
• Pieschel Martin
• Stuermer Uwe
• Tepe Tobias

Classifications

• H02M7/003 Primary

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title

• H02M2007/4835

  Electricity · mapped topic

• H02M7/5152 Primary

  with separate extinguishing means · CPC title

• H02M7/4835

  comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage · CPC title

• H02M1/327

  against abnormal temperatures · CPC title