WO2017080928A1 - Convertisseur modulaire à plusieurs étages et procédé pour faire fonctionner un convertisseur modulaire à plusieurs étages - Google Patents

Convertisseur modulaire à plusieurs étages et procédé pour faire fonctionner un convertisseur modulaire à plusieurs étages Download PDF

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Publication number
WO2017080928A1
WO2017080928A1 PCT/EP2016/076710 EP2016076710W WO2017080928A1 WO 2017080928 A1 WO2017080928 A1 WO 2017080928A1 EP 2016076710 W EP2016076710 W EP 2016076710W WO 2017080928 A1 WO2017080928 A1 WO 2017080928A1
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WO
WIPO (PCT)
Prior art keywords
submodules
modules
module
switching
modular multi
Prior art date
Application number
PCT/EP2016/076710
Other languages
German (de)
English (en)
Inventor
Manuel Blum
Marek Galek
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP16795264.7A priority Critical patent/EP3350916A1/fr
Publication of WO2017080928A1 publication Critical patent/WO2017080928A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/493—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4835—Converters with outputs that each can have more than two voltages levels 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

Definitions

  • the invention relates to a modular multi-stage converter with a series connection of several modules.
  • a modular multistage converter also known as a modular multilevel converter, or MMC or M2C for short, is a converter for converting a voltage into another voltage, for example, a modular multistage converter can convert a DC voltage into an AC voltage
  • a modular multi-stage converter can convert, for example, an AC voltage into a DC voltage, ie it is used as a rectifier.
  • a modular multi-stage converter can convert an AC voltage to an AC voltage different in frequency and amplitude, without first applying a DC voltage DC voltage, ie it is used as a direct converter.
  • Modular Mehrmenumrichter be used ⁇ tung area mainly in the high-Leis.
  • One possible field of application of a modular multi-stage inverter as an inverter is a photovoltaic power plant in which the DC voltage generated by the power plant must be converted into an AC voltage in order to feed the latter into an AC grid.
  • a modular multi-level converter as a rectifier is needed, for example, in the high-voltage DC transmission.
  • a DC voltage is generated from an AC voltage, which is used for low-loss transport over long transmission distances.
  • the DC voltage is again converted into an AC adapter with a modular multistage inverter as an inverter. tion in order to feed them into the AC mains .
  • EP 2677653 AI discloses a modular multi-stage converter, which in this case comprises three series circuits with 2N modules. Each of the series circuits is divided into two branches by an AC line. Each branch in turn is connected via a throttle element with the AC voltage line. Furthermore, each module has an energy store and a switching device. The respective energy storage is configured to store an electrical ⁇ cal energy. In each module, the energy ⁇ memory can be at least partially charged with electrical energy (up). By means of the switching device can be controlled whether the energy storage of the respective module to be charged or discharged or whether the energy storage is to be bridged.
  • the modular Mehrmenumrichter is designed for a certain Maxi ⁇ malhard, and for a certain maximum current up to which the modular Mehrmenumrichter to work optimally and / or interference. So that the modular multi-stage converter can work without interference even with even higher voltage values, ie in order to increase the maximum voltage, the number of modules connected in series can be increased. The maximum current remains the same, ie the maximum current can not be increased in this way.
  • An object of the present invention is to provide a high performance and low cost modular multi-stage converter. This object is achieved by a modular multi-stage converter with a series circuit of several modules, each of the modules comprises a plurality of parallel zuei ⁇ nander switched submodules and each of the submodules has a switching device, an energy storage and a throttle selel element.
  • the invention is based on the fact that the current in each unit can be kept low by connecting several units in parallel, because the total current is divided among the individual units (into a plurality of substreams).
  • each previous module is divided into several ⁇ submodules, the submodules are connected in parallel.
  • the current in each of the submodules - ie in each submodule or in each of the submodules - can be kept low because the total current is divided among the individual submodules (into several subcurrents).
  • each of the submodules has a low partial current so that standard semiconductor components can be used in each of the submodules.
  • the invention recognizes that a simple splitting of the previous modules (with energy storage and switching device) into several submodules is not possible because the switching times of the switching devices in the respective submodules differ slightly from one another. Due to the manufacturing process, switching devices with exactly the same switching times can not be supplied. Due to slightly different switching times of the switching devices, a load in a module, for example, only flow over one of the submodules, resulting in may cause a defect of the switching device within this submodule.
  • the invention provides for integrating a throttle element in each of the submodules, since a load can be uniformly distributed over all submodules.
  • the invention provides a parallel connection of several submodules ⁇ rer before, so that it is ensured that in each of the submodules a low (partial) current flows and, further, the invention provides that each of the submodules a
  • the parallel connection of several submodules has the advantage that the modularity of a modular Mehrmenum ⁇ converter is further increased.
  • the number of submodules ei ⁇ nes each module depending on the required maximum current can be varied, in particular without having to exchange elements of the respective submodules. A scalability of the modular multi-level inverter with respect to the maximum current is thus produced.
  • the modular multi-stage converter can be used for converting a DC voltage into an AC voltage, ie as an inverter, and / or for converting an AC voltage into a DC voltage, ie as a rectifier.
  • the modular multi-stage converter can be set up to convert an alternating voltage into an alternating voltage that is different in frequency and / or amplitude.
  • the modular multi-stage converter can be multifunctional.
  • at least one of the plurality Submo ⁇ modules comprises a half-bridge circuit.
  • the switching device and the energy storage of the same submodule are connected.
  • each of the plurality of submodules may comprise a half-bridge circuit in which preferably the switching device and the energy store of the respective submodule are interconnected.
  • each of the energy stores of the plurality of submodules can be placed in an intermediate circuit of the respective submodule.
  • the respective interim ⁇ intermediate circuit is usefully an element of the previously-called half bridge circuit.
  • the respective energy store can be arranged parallel to the switching device of the respective submodule.
  • the energy store of at least one of the plurality of submodules is a capacitor and / or a rechargeable battery.
  • a rechargeable battery can be understood ⁇ to.
  • each of the energy stores of the plurality of submodules can be a capacitor and / or a rechargeable battery.
  • the capacitor may be, for example, a power capacitor.
  • the capacitor may be, for example, a film capacitor, an electrolytic capacitor or a ceramic capacitor.
  • the switching device comprises at least one of the plurality of submodules two switching units.
  • each of the switching devices of the plurality is advantageous if the switching device comprises at least one of the plurality of submodules two switching units.
  • Submodules each comprise two switching units.
  • the two switching units (each) maral ⁇ tet in series.
  • the two (respective) switching ⁇ units form a bridge arm.
  • the (respective) bridge arm is usefully an element of the aforementioned half-bridge circuit.
  • the switching unit of at least one of the plurality of submodules comprises a diode and / or a controllable switching element.
  • each of the switching units of the plurality of sub-modules can (weils JE) summarize a diode and / or a controllable switching element to ⁇ .
  • the controllable switching element may be, for example, a transistor.
  • controllable switching element may be an IGBT (Insulated Gate Bipolar Transistor), a MOSFET (Metal Oxide Semiconductor Field-effect Transistor) or the like.
  • IGBT Insulated Gate Bipolar Transistor
  • MOSFET Metal Oxide Semiconductor Field-effect Transistor
  • the controllable switching element is antipa ⁇ connected in parallel to the diode.
  • the switching unit of the plurality of sub-modules, in particular ⁇ sondere each of the switching units of the plurality of sub-modules include a thyristor.
  • the throttling element of at least one of the plurality of sub-modules is connected such to the switching device of the same sub-module, that the throttling element defining a Stromän ⁇ alteration rate in the two switching units of the same submodule.
  • each of the throttle elements of the plurality of sub-modules may be connected such to the switching device of the respective sub-module that the respective Dros ⁇ ele- ment a current change rate in the two switching input ⁇ units in the respective submodule limited.
  • the throttle element of at least one of the plurality of submodules can be connected to the switching device of the same submodule such that the switching operations of the same submodule are decoupled from the switching processes of other submodules.
  • the throttle element of at least one of sev- eral submodules may be such interconnected with the switching apparatus of the same sub-module that an interference-free current ⁇ takeover, particularly a commutation, the switching apparatus of the same sub-module is assured. It is useful if modules in at least one of the plurality Submo ⁇ the two switching units of the same sub-module are connected to each other through a conduit. In particular, in each of the several submodules the two respective switching inputs each connected by a line. Preferably, a junction splitter ⁇ line is connected to the respective line.
  • the respective branch line advantageously comprises the throttle element of the respective submodule.
  • the throttle element can be arranged in the respec ⁇ gene branch line.
  • the throttle member of at least one of the plurality of submodules ⁇ is a coil and / or a resistor.
  • each of the throttle elements is a coil and / or a resistor.
  • each of the throttle elements of the plurality of submodules may be a coil.
  • the throttle element of at least one of the plurality of submodules having a frequency-dependent resistor.
  • the throttle element of at least one of the plurality of submodules has an inductance.
  • each of the modules may have such a module ⁇ control.
  • Next is preferably carried out in each of the plurality of modules to control the sub-modules of each module at the level of the respective module with a common seed ⁇ module controller. That is, each of the modules may have a common module controller for driving its submodules.
  • the control module of the respective module is advantageously adapted to control the switching devices, in particular ⁇ sondere the switching units, its submodules.
  • the module control of at least one of the plurality of modules is connected via a first bus and / or via a second bus to the switching devices of the same module.
  • each of the sub-modules of the same module has a first switching unit and a second switching unit.
  • each of the submodules of the respective module can ne first switching unit and a second switching unit aufwei ⁇ sen.
  • the first and the second switching unit can insbeson ⁇ particular be the above-mentioned two switching units.
  • the module control of the at least one of the plurality of modules can be connected via the first bus to each first switching unit of the same module, in particular to each of the switching elements of the first switching unit of the same module. Furthermore, the module control of the at least one of the plurality of modules can be connected via the second bus to every second switching unit of the same module, in particular to each of the switching elements of the second switching unit of the same module. In particular, each of the module controllers of the plurality of modules can be connected to the switching units of the submodules of the respective modules in such a way.
  • Each of the submodules may include other elements.
  • the half- bridge circuit of at least one of the plurality of submodules can form, for example, a full bridge circuit with the further elements of the same submodule.
  • Each of the submodules may comprise one or more further switching devices, which in turn may comprise one or more switching units.
  • the one or more switching units of the further switching device (s) may be configured identically or substantially identically to the first-mentioned switching units.
  • the module control of the respective module can be connected to the further switching devices of the same module, in particular to control these.
  • the Rei ⁇ henscrien comprises an even number of modules.
  • the series connection of the modular multi-stage converter may be a first series connection.
  • the modular multi-stage converter may comprise at least one further series connection of modules.
  • the further series connection can, in particular each of the further series circuits, be connected in parallel with the first series connection of modules.
  • the further series circuit, in particular each of the further series circuits, and the first series circuit an equal number of modules, in particular a straight number of modules ⁇ have.
  • each of the modules has an equal number of submodules.
  • the modu le ⁇ the first series circuit may have an equal number of submodules.
  • the modules of the further series connection, in particular the modules of each of the further series circuits, and the modules of the first series circuit may have an equal number of submodules.
  • the submodules are identical or substantially identical to one another.
  • the modular multi-stage converter can have a main control.
  • the main controller can be connected to the jewei gene module controls.
  • the modular multi-stage converter can be used, for example, to supply a power transmission system, wherein in particular a voltage converted by the modular multi-stage converter can be fed into the energy transmission system.
  • the energy transfer ⁇ system is a power grid, for example a direct current power or an alternating current network.
  • each of the modules comprises a plurality of parallel zueinan ⁇ switched submodules and each of the submodules has a switching device, an energy storage and a throttle element, wherein a voltage is applied to the modular multi-stage converter, in each of the submodules a partial current flows through the throttle member of the respective Submo- duls a current change rate of the respective partial flow be ⁇ is limited, the current flowing in the submodules partial flows are superposed to form a total current and the total current from the modulated laren multi-stage converter is delivered to a power transmission system.
  • this modular multi-stage converter can be the modular multi-stage converter described above. Consequently, the following elements of the modular multi-stage converter can be the aforementioned elements.
  • each of the modules generates a partial voltage.
  • the partial voltages are superimposed to form a total voltage.
  • the total voltage can be delivered by the modular multi-stage converter.
  • the total voltage can be delivered to the energy transmission system. It makes sense that the total voltage is the voltage converted by the modular multistage converter.
  • the switching devices of the respective module are actuated at the level of the respective module according to a predetermined logic.
  • each of the submodules has a first switching unit and a second
  • each first switching unit of the respective module and, at the same time, each second switching unit of the respective module can be driven in substantially the same way in each of the plurality of modules according to the predetermined logic.
  • each of the sub-modules comprises a switching process direction, which expediently comprises a first switching ⁇ unit and a second switching unit. It is further advantageous if each of the modules includes a module controller on ⁇ .
  • the module controller can control its submodules. Expediently, the module controller controls the switching devices, in particular the switching units, of the respective module.
  • the module controller can control the switching devices, in particular the switching units, of the respective module according to a predetermined logic. In a preferred embodiment Design of the invention controls the module control via a first bus and / or a second bus, the switching units of the respective module.
  • each first switching unit of the same module insbesonde ⁇ re the switching elements of the first switching units of the same module driving, through a first bus substantially. Furthermore, according to the predetermined logic, the module control of the respective module via a second
  • Bus substantially simultaneously control each second switching unit ⁇ the same module, in particular the switching elements of the second switching units of the same module. If the first switching unit is turned on in the respective submodule ⁇ on, the energy storage of the respective sub-module is advantageously bridged. If the second switching ⁇ unit of each submodule is turned on, the energy storage of each submodule is conveniently charged and / or discharged.
  • the first switching unit, in particular the switching element of the first switching unit, of the respective submodule is / are opened when the second switching unit, in particular the switching element of the second switching unit, of the same submodule is / is closed and vice versa.
  • both switching units of the respective submodule, in particular its switching elements can be opened at the same time.
  • the modular multi-stage converter may comprise at least one further series connection of modules.
  • the modular multi-stage converter comprises a further series connection (ie a total of two series connections) in order to generate and / or convert a two-phase alternating voltage.
  • the modular multi-stage inverter may include two more series circuits (ie, three total series circuits) to generate and / or convert a three-phase AC voltage.
  • the description of advantageous embodiments of the invention given hitherto contains numerous features which are reproduced in some detail in the individual subclaims. However, these features can expediently also be considered individually and combined into meaningful further combinations. In particular, these features can be combined individually and in any suitable combination with the method according to the invention and the modular multi-stage converter according to the invention.
  • the process features are formulated objectively as property of entspre ⁇ sponding device unit to se ⁇ hen and vice versa.
  • 1 shows a modular multi-stage converter with a series connection of several modules
  • FIG. 3 shows a modular multi-stage converter with three series circuits of several modules.
  • the modular multi-stage converter 2 comprises two DC voltage lines 8 for the connection of a DC voltage (+, -) or for connection to a DC network and an AC line 10 for the output of an AC voltage (AC) or for connection to an AC network.
  • the modular Mehrmenumrichter 2 is for example to set up a DC voltage (+, -) to a (einpha ⁇ SiGe) alternating current (AC) to convert.
  • the AC ⁇ circuit 10 divides the series circuit 4 into two branches 12. Each branch 12 includes the same number of modules. 6
  • Each module 6 comprises a plurality of sub-modules 14 connected in parallel with each module 6 having the same number of sub-modules 14.
  • the submodules 14 are identical to each other.
  • Each submodule 14 comprises a switching device 16, an energy store 18 and a throttle element 20.
  • each submodule 14 comprises a half-bridge switch 22, in which the switching device 16 and the energy store 18 are connected.
  • each energy ⁇ memory 18 respectively in an intermediate circuit 24 of the bridge circuit 22 Halbbrü- the respective submodule 14 placed, that each energy storage 18 is parallel to the respective
  • Switching device 16 is arranged. Each energy store 18 is designed as a capacitor.
  • the switching device 16 of the respective sub-module 14 comprises a first switching unit 26 and a second switching unit 28. Further, the two respective switching units 26, 28 connected in series and form a bridge arm 30 of the bridge circuit 22 of the Halbbrü ⁇ respective submodule fourteenth
  • Each switching unit 26, 28 comprises a diode 32 and a steu ⁇ erbares switching element 34.
  • the respective controllable switching element 34 is a transistor, in particular an IGBT (insulated gate bipolar transistor). Further, the switching element 34 is connected in anti-parallel with the diode 32.
  • the two respective switching units 26, 28 of each submodule 14 are connected to each other by a line 35 and to the respective line 35 a branch line 36 is connected, which comprises the throttle element 20 of the respective submodule 14.
  • the throttle member 20 of the respective sub-module 14 is a coil having a Indukti ⁇ tivity and thus a frequency-dependent resistance.
  • the respective branch line 36 connects the respective module 6 to the next (according to the drawing above lying) module 6.
  • the branch line 36 of the drawing according to deviss ⁇ th module 6 connects this module 6 via the DC clamping ⁇ voltage line (input line) 8 to the positive terminal (+) of the DC voltage (+, -).
  • each module 6 has a module control ⁇ 38.
  • the respective module controller 38 controls the switching units 26, 28 of the respective switching device 16, in particular according to a predetermined logic.
  • the module controller 38 of the respective module 6 is connected via the first bus 40 to each first switching unit 26 of the same module 6, in particular to the switching elements 34 of the first switching units 26 of the same module 6.
  • the module controller 38 of the respective module 6 controls (according to the predetermined logic) through the first bus 40 is substantially at the same time each first switching unit of the same module 6, insbeson ⁇ particular, the switching elements 34 of the first switching units 26 of the same module 6 on.
  • the module controller 38 of the respective module 6 is connected via the second bus 42 to each second switching unit 28 of the same module 6, in particular to the switching elements 34 of the second switching units 28 of the same module.
  • the module controller 38 of the respective module 6 controls (according to the given logic) via the second bus 42 essentially simultaneously each second switching unit 28 of the same module 6, in particular the switching elements 34 of the second switching units 26 of the same module 6.
  • the switching element 34 of the first switching unit 26 of the respective submodule 14 is turned on and the Wegele ⁇ ment 34 of the second switching unit 28 of the same submodule 14 is turned off, the energy storage 18 of the respective submodule 14 is bridged. If the switching element 34 of the two ⁇ th switching unit 28 of the respective sub-module 14 is on scarf ⁇ tet and the switching element 34 is turned off the first switching unit 26 of the same sub-module 14, the energy can be the memory 18 of the respective sub-module 14 charged or discharged.
  • both switching units 26, 28 of the respective submodule 14, in particular its switching elements 34 can be opened at the same time.
  • the opening of the respective switching elements 34 takes place in that the respective switching element 34 becomes high-impedance.
  • To convert the voltage is, for example, to the
  • DC voltage lines 8 a DC voltage (+, -) applied.
  • each of the submodules 14 flows (due to the Parallelschal ⁇ tion) a partial flow.
  • a current change rate of the respective partial current is limited.
  • the partial currents flowing in the submodules overlap to form a total current.
  • the total current is from the modular multi-stage converter 2 on the
  • each module 6 generates a partial voltage.
  • the partial voltages are superimposed to form a total voltage.
  • the total voltage is delivered in the form of an AC voltage (AC) from the modular multi-stage converter 2 via the AC line 10 in the power transmission system.
  • AC AC
  • the modular multi-stage converter 2 can also be operated in the opposite direction, i. To the AC line 10, an AC voltage 10 can be applied, which from the modular multi-stage converter 2 in a
  • the DC voltage (+, -) or the DC current is then output via the DC voltage lines 8 to a DC voltage network.
  • FIG. 2 shows a schematic circuit diagram of an alternative embodiment of a submodule 44.
  • the submodules 14 shown in FIG. 1 can each be represented by the one shown in FIG. 1
  • Submodule 44 are replaced.
  • Submodule 44 comprises a half-bridge circuit 22, in which a switching device 16 and an energy store 18 are arranged.
  • the switching device 16 comprises two switching ⁇ units 26, 28, which are arranged in a bridge arm 30 of the half-bridge circuit 22nd
  • the two switching units 26, 28 are connected to each other by a line 35 and to the line 35, a branch line 36 is connected, which includes the throttle element 20.
  • the submodule 44 includes a second Wegvorrich ⁇ device 46 with two switching units 48, 50, which are arranged in a second bridge branch 52.
  • the half-bridge circuit 22 of a sub-module 44 forms a full-bridge circuit 54 with the second switching device 46.
  • the second switching device 46 is driven by the same module controller (see FIG 1) as the first switching device 16. That is, the switching elements 34 of the second switching device 46 are connected to the same module control like the switching elements 34 of the first switching device 16.
  • the submodule can also comprise a mixed form of half bridge and full bridge.
  • the submodule may also include a full bridge and other elements.
  • FIG. 3 shows a schematic diagram of a modular Mehrmenumrichters 56 having three series circuits 4.
  • Each series circuit includes a plurality of modules 6, which in turn each have wells ⁇ several submodules 58 and a control module 38 on ⁇ .
  • the submodules 58 have been drawn symbolically as a rectangle, and each submodule 58 can be replaced, for example, by one of the submodules 14, 44 from FIG. 1 or from FIG. 2.
  • each ⁇ zener module 6 The respective module controller 38 and the submodules 58 of each ⁇ zener module 6 are connected via a bus system 60 with each other ((as opposed to the plurality of buses 40, 42) in FIG 1).
  • the activation of the submodules 58 or their switching devices, in particular their switching elements, takes place via the bus system 60 in an analogous manner to the control in FIG.
  • the first series circuit 4 is shown by the diagram on the left, the second series circuit 4 according to the drawing and the center drit ⁇ th serial circuit 4 arranged according to the drawing on the right.
  • the second and the third series circuit 4 is connected in each case paral lel ⁇ to the first series circuit 4, that is, the three series circuits 4 are connected in parallel. Further, the three series circuits 4 each comprise an equal number of modules 6.
  • the second series circuit 4 and the third series circuit 4 are formed analogously to the first series circuit 4.
  • Each series circuit 4 comprises per ⁇ wells an AC voltage line 10 for one phase of an alternating voltage (AC).
  • the modular multi-stage converter 56 is configured, for example, to convert a DC voltage (+, -) into a three-phase AC voltage (AC). In principle, the modular multi-stage converter 56 can also be operated in the reverse direction, ie it can convert a three-phase AC voltage (AC) into a DC voltage (+, -).

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un convertisseur modulaire à plusieurs étages (2, 56) comprenant un circuit série (4) de plusieurs modules (6). Selon l'invention, en vue de pouvoir fournir un convertisseur modulaire à plusieurs étages (2, 56) économique, chacun des modules (6) comprend plusieurs sous-modules (14, 44, 58) branchés en parallèle les uns avec les autres et chacun des sous-modules (14, 44, 58) possède un dispositif de commutation (16), un accumulateur d'énergie (18) et un élément à bobine de choc (20).
PCT/EP2016/076710 2015-11-12 2016-11-04 Convertisseur modulaire à plusieurs étages et procédé pour faire fonctionner un convertisseur modulaire à plusieurs étages WO2017080928A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16795264.7A EP3350916A1 (fr) 2015-11-12 2016-11-04 Convertisseur modulaire à plusieurs étages et procédé pour faire fonctionner un convertisseur modulaire à plusieurs étages

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015222280.2A DE102015222280A1 (de) 2015-11-12 2015-11-12 Modularer Mehrstufenumrichter und Verfahren zum Betreiben eines modularen Mehrstufenumrichters
DE102015222280.2 2015-11-12

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WO2017080928A1 true WO2017080928A1 (fr) 2017-05-18

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EP (1) EP3350916A1 (fr)
DE (1) DE102015222280A1 (fr)
WO (1) WO2017080928A1 (fr)

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WO2019149367A1 (fr) * 2018-02-02 2019-08-08 Siemens Aktiengesellschaft Convertisseur redresseur modulaire à plusieurs étages et module de commutation pour convertisseur redresseur modulaire à plusieurs étages
EP3621191A1 (fr) 2018-09-06 2020-03-11 ABB Schweiz AG Connexion parallèle à l'intérieur de cellules mmc par découplage de section cc
GB2607818A (en) 2020-03-05 2022-12-14 Hitachi Energy Switzerland Ag Assembly with crowbars and decoupling impedances

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