EP3741037A1 - Module of a modular multilevel converter - Google Patents
Module of a modular multilevel converterInfo
- Publication number
- EP3741037A1 EP3741037A1 EP18713810.2A EP18713810A EP3741037A1 EP 3741037 A1 EP3741037 A1 EP 3741037A1 EP 18713810 A EP18713810 A EP 18713810A EP 3741037 A1 EP3741037 A1 EP 3741037A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- module
- coolant
- valve
- power semiconductor
- semiconductor device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
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
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/49—Combination of the output voltage waveforms of a plurality of converters
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14339—Housings specially adapted for power drive units or power converters specially adapted for high voltage operation
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
Definitions
- the invention relates to a module of a modular
- Multilevel converter and a method for cooling the module.
- a modular multilevel power converter is one
- a multilevel converter can convert AC to DC or DC to AC.
- Multilevelstromrichter has a plurality of similar modules, which are electrically connected in series.
- the electrical series connection of the modules can achieve high output voltages.
- a multilevel converter is easily adaptable to different voltages and a desired output voltage can be generated relatively accurately.
- a multilevel converter can advantageously be used in the high voltage range, for example as a converter in a high-voltage direct current
- the modules of the multilevel converter contain
- Cooling circuit to be cooled In the case of an electrical defect of a module (for example in the case of an electrical defect of a power semiconductor component of the module)
- the module can also be mechanically damaged, whereby the coolant of the cooling circuit can leak from the module.
- the invention has for its object to provide a module of a modular Multilevelstromrichters and a method for
- cooling device liquid cooling device for the first and the second power semiconductor component, wherein the cooling device has a coolant inlet and a
- a first valve for blocking the coolant inlet.
- the first valve may be disposed at the coolant inlet. It is particularly advantageous that when a (in particular electrical) fault occurs in the module by means of the first valve, the coolant inlet can be blocked. As a result, no additional coolant in the module
- Closing the first valve prevents coolant from escaping from the possibly mechanically damaged module after the error has occurred can. As a result, a shutdown of the converter can be avoided because of coolant outlet, the availability of the converter is improved.
- the module can be a second valve to lock the
- the second valve may be disposed at the coolant outlet. It is advantageous that when the electrical fault occurs in the module by means of the second valve, the coolant outlet can be blocked. As a result, no coolant (for example, from a connected to the coolant outlet
- Coolant line flow back into the module via the coolant outlet. Closing the second valve prevents coolant from escaping from the possibly mechanically damaged module after the error has occurred.
- the module can be designed such that the first and the second power semiconductor component in one
- Half-bridge circuit are arranged.
- Such a module is also referred to as a half-bridge module or as a half-bridge submodule. By means of such a module can at
- the module may also be designed such that the module has a third power semiconductor component and a fourth
- Power semiconductor device has, and the four
- Power semiconductor components are arranged in a full bridge circuit.
- a full bridge module is also referred to as a full bridge module or as a full bridge submodule.
- Power semiconductor components either the voltage of the arranged in the module electrical energy storage, the negative voltage of the energy storage or no voltage (ie a zero voltage) are output.
- the module may be configured such that the first valve and / or the second valve each have an electrical
- the module can also be designed such that the module is assigned a bypass switch (bypass switch), which bridges the module electrically when an electrical fault occurs in the module.
- the bypass switch is electrically connected to the module.
- Bridging switch closed, thereby electrically bridging the module. This allows the power converter by means of the remaining intact modules of ongoing work and does not need to be shut down in the event of an electrical fault in a single module.
- the module can also be designed so that the first valve and / or the second valve so with the
- Bypass switch is coupled, that when closing the lock-up switch also the first valve and / or the second valve closes (locks).
- Cooling circuit of the power converter to be disconnected.
- the modules can be electrically connected in series (electrical series connection) and the cooling devices of the individual modules can also be connected in series with regard to the coolant flow (coolant-related series connection).
- Disclosed is still a method for cooling a
- Cooling device of the module to be cooled the
- the coolant is supplied to the module through the coolant inlet
- the process can proceed in such a way that
- Coolant outlet arranged second valve of the
- Coolant outlet is blocked (by the second valve is closed).
- the procedure can also be such that
- the module is associated with a bypass switch that electrically bridges the module in the event of an electrical fault in the module, and (wherein the first valve and / or the second valve are so coupled to the lock-up switch) that when closing the lock-up switch and the first valve and / or the second valve are closed.
- the module described and the method described have the same or similar advantages.
- Figure 1 shows an embodiment of a power converter having a plurality of modules
- Figure 2 shows an embodiment of a module
- FIG. 3 shows another embodiment of a module
- Figure 4 shows an embodiment of a high voltage DC transmission system
- FIG. 5 shows an exemplary sequence of a method
- Figure 1 shows an embodiment of a power converter 1 (high-voltage power converter 1) in the form of a modular
- Multilevel converter 1 (modular multilevel converter, MMC). This multilevel converter 1 has a first AC voltage connection 5, a second one
- the first AC voltage terminal 5 is electrically connected to a first phase module branch 11 and a second phase module branch 13.
- the first phase module branch 11 is electrically connected to a first phase module branch 11 and a second phase module branch 13.
- Phase module branch 11 and the second phase module branch 13 form a first phase module 15 of the power converter 1.
- Phase module branch 11 is connected to a first
- the first DC voltage terminal 16 electrically connected.
- the first DC voltage terminal 16 is a positive one
- the second DC voltage terminal 17 is a negative DC voltage terminal.
- the second AC voltage terminal 7 is electrically connected to one end of a third phase module branch 18 and to one end of a fourth phase module branch 21.
- the third phase module branch 18 and the fourth phase module branch 21 form a second phase module 24.
- AC terminal 9 is connected to one end of a fifth phase module branch 27 and to one end of a sixth
- Phase module branch 29 electrically connected.
- Phase module branch 27 and the sixth phase module branch 29 form a third phase module 31.
- the second AC terminal 7 opposite end of the third phase module branch 18 and the third
- Phasenmodulzweigs 27 are electrically connected to the first DC voltage terminal 16.
- the first phase module branch 11, the third phase module branch 18 and the fifth phase module branch 27 form a positive-side
- Power converter part 32; the second phase module branch 13, the fourth phase module branch 21 and the sixth phase module branch 29 form a negative-side converter element 33.
- Each phase module branch has a plurality of two-pole modules (1_1, 1_2, 1_3, 1_4 ... l_n; 2_1 ... 2_n; etc.), which are electrically connected in series (by means of their two electrical module connections). Such modules are also referred to as submodules.
- each phase module branch has n modules. The number the modules electrically connected in series by means of their electrical module connections can be very different, at least two modules are connected in series, but it is also possible for example to have 3, 50, 100 or more modules
- n 36: the first phase module branch 11 thus has 36 modules 1_1, 1_2, 1_3,... 1_36. The others
- Phase module branches 13, 18, 21, 27 and 29 are of similar construction.
- Power converter 1 optical messages or optical signals via an optical communication link (for example, via an optical fiber) to the individual modules 1_1 to 6_n transmitted.
- the control device sends to the individual modules in each case a desired value for the amount of the output voltage that is to provide the respective module.
- Phase modules 15, 24, 31 are arranged, each phase module 15, 24, 31 an AC voltage terminal 5, 7, 9 and at least one DC voltage terminal 16, 17
- the power converter 1 has a cooling device 50.
- the cooling device 50 has a coolant reservoir 52, a pump 54 (coolant pump 54) and a heat exchanger 56 (heat exchanger 56).
- the coolant tank 52, the pump 54 and the heat exchanger 56 are connected by coolant lines 60 with the individual modules 1_1 ... l_n, 3_1 ... 3_n, etc. of the power converter 1.
- Heat exchanger 56 connected via a Hin-coolant line 60a to the module 1 1; the module 1 1 is over a Coolant line 60b connected to the module 1_2; and the module 1_2 is connected to the module 1_3 via a coolant line 60c.
- the module 1_3 is connected to the next module 1_4 (not shown) via a coolant line 60, and so on.
- the last module 1_n of the phase module branch 11 is connected to the coolant container 52 via a return coolant line 60d
- the coolant tank 52 is above a
- Coolant line 60 connected to the pump 54; the pump 54 is connected to the heat exchanger 56 via a coolant line 60.
- the coolant lines 60 are shown in the figures by means of two parallel lines in the manner of a tube.
- the electrical lines of the power converter are each by means of a single line
- coolant 70 In the coolant tank 52 is a supply of coolant 70.
- the coolant 70 may from the
- Coolant tank 52 by means of the pump 54 through the
- Heat exchanger 56 through the modules 1_1 ... l_n of the first phase module branch 11 and then back to
- Coolant tank 52 are pumped.
- Cooling device 50 a cooling circuit 72nd
- Coolant 70 for example, purified water can be used. Such a coolant has a very low electrical conductivity. Therefore, such a coolant can be used for example in a high voltage power converter or in a power converter of a high voltage DC transmission system (for example, at voltages between 100 kV and 500 kV).
- a further cooling device 80 For cooling the power semiconductor components of the modules of the second phase module branch 13, the fourth phase module branch 21 and the sixth phase module branch 29, there is a further cooling device 80.
- This further cooling device 80 has an identical structure to the cooling device 50 of the first, third and fifth phase module branches 11, 18 and 27.
- Converter 1 by means of a single cooling device (i.e., by means of a single coolant reservoir 52, a single pump 54, and a single heat exchanger 56).
- a single cooling device i.e., by means of a single coolant reservoir 52, a single pump 54, and a single heat exchanger 56.
- the coolant tank 52 contains a supply of
- Coolant 70 The coolant tank 52 is optional: the coolant can also in sufficient quantity in the
- Heat exchanger 56 may be present.
- Figure 2 shows an example of the structure of a bipolar
- the module is designed as a half-bridge module 201.
- the module 201 has a first power semiconductor component 202 in the form of an electronic switching element 202 that can be switched on and off with a first antiparallel-connected diode 204 (first freewheeling diode 204).
- the module 201 has a second power semiconductor component 206 in the form of an electronic switching element 206 which can be switched on and off with a second antiparallel-connected diode 208 (second freewheeling diode 208) and an electrical energy store 210 in the form of an electrical capacitor 210.
- Power semiconductor device 206 are each configured as an IGBT (insulated-gate bipolar transistor).
- the first Power semiconductor device 202 is electrically coupled in series with second power semiconductor device 206. At the connection point between the two
- a first (galvanic) module port 212 is arranged.
- a second (galvanic) module connection 215 is arranged.
- the second module connection 215 is furthermore connected to a first connection of the energy store 210; a second terminal of the energy storage 210 is electrically connected to the
- connection of the first power semiconductor device 202 which is opposite to the connection point.
- the energy storage 210 is therefore electrically parallel
- Triggering the first power semiconductor component 202 and the second power semiconductor component 206 can be achieved that between the first module terminal 212 and the second module terminal 215, either the voltage of the
- Energy storage 210 is output or no voltage is output (i.e., a zero voltage is output).
- Phase module branches can be as desired
- Control of the first power semiconductor component 202 and the second power semiconductor component 206 takes place in the exemplary embodiment by means of the (above-mentioned) transmitted from the control device of the power converter to the module message or signal.
- the first power semiconductor device 202 is provided with a first power semiconductor device heat sink 220; the second power semiconductor device 206 is provided with a second power semiconductor device heat sink 222 Provided.
- the first freewheeling diode 204 is provided with a first diode heatsink 226; the second freewheeling diode 208 is equipped with a second diode heatsink 228.
- the heatsinks 220, 222, 226 and 228 are in close thermal contact with the respective device and are capable of dissipating the waste heat generated in the device
- the heatsinks 220, 222, 226 and 228 are each in close thermal contact (thermal coupling) with the
- Freewheeling diode 204 and the second freewheeling diode 208 thermally coupled to the coolant 70.
- the heat sinks are shown only schematically in the figures.
- the heat sinks may be coolant-flowed (liquid-flowed) heat sinks (i.e.
- Heatsinks have coolant flowed through channels).
- the heat sinks may each consist of solid metal, for example copper or aluminum.
- the heat sinks 220, 222, 226 and 228 are part of a
- Cooling device 229 of the module In addition to the heat sinks, the cooling device 229 also has module-internal coolant channels 230 for transporting the coolant to the heat sinks and away from the heat sinks. Furthermore, the cooling device 229 has a coolant inlet 231 (coolant inlet 231) and a coolant outlet 232 (coolant outlet 232). The
- Coolant inlet 231 serves to supply (supply) of
- Coolant to the module 201 the coolant outlet 232 is used for discharging (discharge) of the coolant from the module.
- the coolant inlet 231 is for supplying the coolant 70 to the heat sinks of the module 201
- the coolant outlet 232 is for discharging (draining) the
- the coolant inlet 231 and the coolant outlet 232 are configured, for example, in each case as a detachable coolant connection which can be connected to the corresponding coolant line 60a or 60b (see FIG. 1 for module 1_1).
- a first valve 234 is arranged at the coolant inlet 231; at the coolant outlet 232, a second valve 235 is arranged.
- the first valve 234 allows in its open state, the inflow of the coolant to the module or in the module and interrupts in his
- the first valve 234 thus serves to block the coolant inlet 231.
- the second valve 235 allows in its open state, the outflow of the coolant from the module and
- the second valve 234 thus serves to block the coolant outlet 232.
- in-flowing coolant 70 is shown; In the upper part of FIG. 2, by means of an arrow 238, the (when the second valve 235 is open) flows out of the module 201
- Coolant 70 shown. By means of the coolant flowing through the module 201 70, the first
- Power semiconductor device 206, the first free-wheeling diode 204 and the second free-wheeling diode 208 are cooled.
- Coolant 70 takes the waste heat of the first electronic power semiconductor device 202, the second
- the coolant 70 transports the absorbed waste heat to the heat exchanger 56.
- the heat exchanger 56 releases the waste heat of the coolant to the ambient air (preferably, the heat exchanger 56 releases the waste heat to the ambient air outside the converter building).
- Module 201 is assigned a bypass switch 245.
- the bypass switch 245 is for electrical
- the bypass switch 245 connects in its closed state, the first
- Power semiconductor device 202 and / or the second
- Power semiconductor device 206) is the
- Valve 234 closed. As a result, the coolant inlet is blocked and no further coolant can flow into the module.
- the second valve 235 arranged at the coolant outlet 232 is also closed. This will be the Coolant outlet blocked and no coolant from the connected to the coolant outlet 232
- Bypass switch 245 may be coupled such that when closing the bypass switch 245 and the first
- Valve 234 and / or the second valve 235 are closed. By means of the bypass switch then the module is electrically bridged; by means of the closed first
- Valve 234 and / or the closed second valve 235 the module 201 is separated from the cooling circuit.
- the coupling between the bypass switch 245 and the first valve 234 and / or the second valve 235 is indicated schematically in FIG. 2 as a dot-dash line 248.
- This coupling may, for example, be realized electrically, for example, when closing the bypass switch 245, the first valve 234 and / or the second valve 235 electrically so controlled that the first valve 234 and / or the second valve 235 are also closed.
- FIG. 3 shows a further exemplary embodiment of a module
- This module 301 can be, for example, the module 1_2 (or also one of the other modules shown in FIG. 1).
- first power semiconductor device 202 second
- Power semiconductor device 206, first freewheeling diode 204, second freewheeling diode 208 and energy storage 210, the module 301 shown in Figure 3 has a third
- Power semiconductor device 306 are each configured as an IGBT. In contrast to the circuit of FIG. 2, the second module connection 315 is not connected to the second one
- the module 301 of FIG. 3 is a so-called full-bridge module 301.
- This full-bridge module 301 is characterized in that, with appropriate control of the four
- the power converter 1 can either only half-bridge modules 201, only full-bridge modules 301 or half-bridge modules 201 and full bridge modules 301 have. Via the first module connection 212 and the second module connection 215, 315 flow large electrical currents of the power converter.
- the third electronic module is additionally provided in addition to the first electronic power semiconductor component 202, the second electronic power semiconductor component 206, the first free-wheeling diode 204 and the second free-wheeling diode 208.
- Power semiconductor device 302 the fourth electronic power semiconductor device 306, the third freewheeling diode 304 and the fourth freewheeling diode 308 by means of
- Coolant 70 of the coolant circuit 72 cooled.
- module 301 also has the
- Coolant inlet 231 provided with the first valve 234, the coolant outlet 232 is connected to the second valve 235th
- the first valve 234 is thus associated with the coolant inlet 231; the second valve 235 is the
- Coolant outlet 232 assigned. The function and
- the operation of the first valve 234 and the second valve 235 is similar to the module 201 shown in FIG.
- FIG. 4 schematically shows an exemplary embodiment of a high-voltage direct-current transmission system 401.
- This high-voltage DC transmission system 401 has two power converters 1, as shown in FIG. These two power converters 1 are electrically connected to one another on the DC voltage side via a high-voltage direct current connection 405. The two are positive
- DC terminals 16 of the power converters 1 are electrically connected to each other by a first high-voltage DC line 405a; the two negative
- DC voltage connections 17 of the two power converters 1 are electrically connected to each other by means of a second high voltage direct current line 405b.
- the high voltage direct current connection 405 then has a corresponding length.
- FIG. 5 once again shows the method for cooling a module of the modular multilevel converter 1 by means of a flowchart.
- the module is supplied with the coolant through the coolant inlet.
- the coolant outlet Through the coolant outlet, the coolant is discharged from the module (led away).
- the coolant inlet Upon the occurrence of an electrical fault in the module, the coolant inlet is blocked (by closing the first valve 234) by means of a first valve 234 disposed on the coolant inlet 231.
- Step 510
- Coolant outlet 232 arranged second valve 235 of the coolant outlet locked (by the second valve 235 is closed).
- the method steps 508 and / or 510 may optionally be configured such that the module is assigned the bypass switch 245, which bridges the module electrically when an electrical fault occurs in the module, and the first valve and / or the second valve with the
- a module of a modular multilevel converter and a method for cooling the module have been described. This module and method has a number of advantages:
- the module can be reliably disconnected from the cooling circuit of the converter. This can be done simply and reliably by virtue of the coolant inlet (and thus the coolant supply) and / or the coolant outlet (and thus the coolant outlet)
- Coolant return are separated by a valve.
- the module-internal cooling device can be inexpensive
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2018/055633 WO2019170229A1 (en) | 2018-03-07 | 2018-03-07 | Module of a modular multilevel converter |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3741037A1 true EP3741037A1 (en) | 2020-11-25 |
Family
ID=61801888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18713810.2A Ceased EP3741037A1 (en) | 2018-03-07 | 2018-03-07 | Module of a modular multilevel converter |
Country Status (2)
Country | Link |
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EP (1) | EP3741037A1 (en) |
WO (1) | WO2019170229A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1750360A1 (en) * | 2005-08-03 | 2007-02-07 | ABB Research Ltd | Multilevel converter arrangement and use thereof |
CN101051751A (en) * | 2007-05-14 | 2007-10-10 | 上海艾帕电力电子有限公司 | Active power filter including power unit and its control method |
CN104426405A (en) * | 2013-09-09 | 2015-03-18 | 南京南瑞继保电气有限公司 | Modular multi-electric-level current converter and converter valve module unit thereof |
EP3245726B1 (en) * | 2015-02-27 | 2022-12-14 | Siemens Energy Global GmbH & Co. KG | Arrangement having a converter |
GB2545455A (en) * | 2015-12-17 | 2017-06-21 | General Electric Technology Gmbh | Power supply apparatus |
CN105958806A (en) * | 2016-05-31 | 2016-09-21 | 中电普瑞科技有限公司 | High-voltage sub-module based on MMC circuit topology |
CN109417859B (en) * | 2016-06-28 | 2019-12-06 | Abb瑞士股份有限公司 | Converter unit arrangement with a cooling system |
CN206099794U (en) * | 2016-09-30 | 2017-04-12 | 国网福建省电力有限公司 | Device of flexible direct current transmission change of current valve trouble submodule piece cooling water cuts off fast |
-
2018
- 2018-03-07 EP EP18713810.2A patent/EP3741037A1/en not_active Ceased
- 2018-03-07 WO PCT/EP2018/055633 patent/WO2019170229A1/en unknown
Also Published As
Publication number | Publication date |
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WO2019170229A1 (en) | 2019-09-12 |
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