WO2017059924A1 - Convertisseur à plusieurs niveaux présentant un module de redondance - Google Patents

Convertisseur à plusieurs niveaux présentant un module de redondance Download PDF

Info

Publication number
WO2017059924A1
WO2017059924A1 PCT/EP2015/073369 EP2015073369W WO2017059924A1 WO 2017059924 A1 WO2017059924 A1 WO 2017059924A1 EP 2015073369 W EP2015073369 W EP 2015073369W WO 2017059924 A1 WO2017059924 A1 WO 2017059924A1
Authority
WO
WIPO (PCT)
Prior art keywords
redundancy
capacitor
multilevel converter
submodules
series
Prior art date
Application number
PCT/EP2015/073369
Other languages
German (de)
English (en)
Inventor
Hans-Joachim Knaak
Rodrigo Alonso Alvarez Valenzuela
Klemens Kahlen
Jörg LANG
Marco Schulze
Tobias WIENERS-REHRMANN
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 DE212015000322.1U priority Critical patent/DE212015000322U1/de
Priority to PCT/EP2015/073369 priority patent/WO2017059924A1/fr
Priority to CN201590001622.4U priority patent/CN209046521U/zh
Publication of WO2017059924A1 publication Critical patent/WO2017059924A1/fr

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
    • 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
    • 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
    • H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant converters

Definitions

  • the invention relates to a multilevel converter with a plurality of submodules connected in series, each having at least one capacitor and in
  • Discharge phases accommodate outward flow rank ⁇ ben and in charging phase current for charging the capacitor means of the capacitor.
  • Such a multilevel converter is known, for example, from the publication "An Alternative Modular Multilevel Converter Topology Suitable for Wide Power Range” (A. Lesnicar and R. Marquardt, 2003 IEEE Bologna Power Tech Conference, 23.-26.
  • Multilevelumrichter is a so-called Marquardt converter arrangement, which comprises at least two parallel series circuits ge ⁇ switched.
  • Each of the parallel-connected series circuits each comprises at least two series-connected submodules, each comprising at least two switches and one capacitor.
  • the voltage level at the output of the multilevel converter can be set specifically.
  • the invention is based on the object, a
  • Multilevel converter solved with the features of claim 1.
  • Advantageous embodiments of the multilevel converter according to the invention are specified in subclaims.
  • Multilevel converter has at least one redundancy module, which in a normal operating mode of the multilevel converter is active and in a standby mode of the
  • Multilevelumrichters works as a submodule, and to the Redun ⁇ danzmodul or to the redundancy module having Re ⁇ dundanzmodul Glanscnies a switching device is connected in parallel, which is turned on in the normal operating mode and switched off in the substitute operating mode.
  • Multilevelumrichters is that in case of failure of one or - depending on the design - several active submodules another operation of the multilevel converter or at least a safe shutdown of
  • Multilevel converter is possible because failed submodules can be replaced by activating redundancy modules.
  • the activation of the redundancy module (s) may take place according to the invention by switching off a parallel switching device, ie reliably and quickly.
  • the redundancy module lying parallel or redundant modules in parallel are supplied with voltage, so that their capacitors can be charged and the redundant modules are operational.
  • Multilevel inverters are redundancy modules.
  • the at least two redundant modules are electrically switched ge ⁇ in series and form the above-mentioned redundancy module row scarf ⁇ processing. Overlooking minimal electrical losses in the on switch ⁇ th state, it is considered advantageous if the
  • Switching device has a mechanical switch.
  • the mechanical switch is in the normal operating mode of the The multilevel converter is switched on and switched off in the substitute operating mode of the multilevel converter.
  • the switching device preferably has a parallel circuit which comprises at least one mechanical switch and a semiconductor switch connected in parallel thereto.
  • the semiconductor switch is preferably switched off both in the normal operating mode of the multilevel converter and in the alternative operating mode of the multilevel converter.
  • the semicon ⁇ conductor switch is preferably used only for shorting the mechanical switch during the opening of the switch contacts of the mechanical switch to prevent the occurrence of a Lichtbo ⁇ gene or to shorten the occurrence of an arc.
  • a thyristor is preferably used. Particularly in the case that it is full bridge modules at the submodules and the redundant modules, it is considered advantageous if the switching means comprises a parallel circuit comprising at least a mechanical switch and two parallel thereto unidirectional switching semiconductor switch, said unidirektio ⁇ nal switching semiconductor switches are interconnected opposite polarity.
  • the switching means comprises a parallel ⁇ circuit comprising at least one mechanical scarf ⁇ ter and two connected in parallel with thyristors, the thyristors are connected with opposite polarity.
  • an impedance for example in the form of an ohmic resistance, is connected in series with the switching device, in particular with the semiconductor switch and / or with the mechanical switch.
  • Impedance can be used to limit the current as well as to intentionally cause a voltage drop, which co-determines or influences the charging of the capacitor (s) of the redundancy module (s).
  • the switch in series with the impedance preferably the semiconductor switch, is preferably not opened until the capacitor or capacitors of the submodule are sufficiently charged and the submodule is operable and capable of communication with a control device of the multilevel converter.
  • the invention also relates to an arrangement with a multilevel converter, as has been described above.
  • the arrangement or the multilevel converter itself preferably has a control device which is connected to the mentioned mechanical switch and the mentioned at least one semiconductor switch.
  • control device is designed such that it in the context of activation of the replacement operation of the Multilevelumrichters, before, during or after the off ⁇ switch of the mechanical switch, turns on the semiconductor switch, preferably by at a control input, in particular ignition input, the semiconductor switch or the semiconductor switch a periodic control signal, in particular a pulse comb applies.
  • the control means is preferably configured such that it can be turned on the semiconductor switch or a semiconductor switch or repeatedly, in particular by means of a periodic control signal turns on, until they insbesonde ⁇ re of the redundancy module, receives a signal that the amounts ⁇ off state of the mechanical switch signaled.
  • the control device is preferably the current through the monitor the mechanical switch and leave the semiconductor switch on until the current reaches or falls below a preset threshold.
  • the controller may be configured such that it makes the semiconductor switch or a semiconductor switch is turned on, or repeatedly, into ⁇ particular by means of a periodic control signal Power On ⁇ tet, and one for a fixed period of time after the mechanical switch or the application is switched off Switch-off command to the mechanical switch.
  • control device In order to avoid an over-voltage across the capacitor of the or of the redundant modules, and an overload and possibly destruction of the redundant modules, it will be advantageous angese ⁇ hen, when the control device is designed such that it switches on or turned on the semiconductor switch or the semiconductor switches when the voltage across a capacitor of the redundancy module reaches or exceeds a predetermined maximum voltage and / or the sum voltage of the voltages of the capacitors of the redundancy module series circuit reaches or exceeds a predetermined maximum sum voltage.
  • the redundancy module is or has a half-bridge module which, in addition to the capacitor, has two series-connected switching elements, to each of which a diode is connected in parallel, wherein the series connection of the switching elements and thus the series connection the diodes is parallel to the capacitor, the diodes are polarized such that at a positive polarity of a current flowing through the half-bridge module, the capacitor can be charged at ⁇ switched switching elements and at a negative polarity of a current flowing through the half-bridge current of the capacitor when turned off
  • Switching elements can not be loaded, and the control device is designed such that it is the replacement operation of the multilevel converter and the mechanical
  • the redundancy modules are preferably connected directly or as directly as possible to AC voltage connections of the multilevel converter. It is insbeson ⁇ particular advantageous if more submodules between the DC voltage terminals of the Multilevelumrichters and the one or more redundancy modules are within series circuits containing the submodules and the redundant modules, as between the alternating-voltage terminals and the one or more redundancy modules.
  • the electrical energy for generating control or ignition signals for switching on the semiconductor switch and for switching off ⁇ the mechanical switch, for example for He ⁇ testify said Pulskamms, preferably removes the control device of the capacitors or the intermediate circuits of other submodules.
  • the invention also relates to a method for operating a multilevel converter, which has a plurality of submodules connected in series, each having at least one capacitor and deliver in discharge phases by means of the capacitor current to the outside and record in charging phases current for charging the capacitor.
  • the Multilevelumrichter is operated in a normal operating mode, as long as the sub-modules, or a predetermined number of sub-modules is jossfä ⁇ hig, and if one of the sub-modules or sub ⁇ the predetermined number of operational submodules exceed at least one redundancy module activates is, by a switching device which is electrically connected in parallel to the redundancy module or one of the redundancy module having redundancy module series circuit, is switched from its normal in ⁇ operating mode switched state to its off state.
  • Submodule capacitors are charged so that the submodule's own sub-module power supply can ramp up, and then kept charged until the controller of the submodule
  • the redundancy modules can be used like normal submodules for voltage formation. Before the transition to normal operation, it is possible to test the newly commissioned submodules (previously redundancy modules).
  • the switching direction in particular its semiconductor switch (preferably thyristor) can serve as protection during this test phase.
  • Figure 1 shows an embodiment of a three-phase
  • Multilevel converter equipped with a plurality of submodule devices, each having a plurality of submodules, and a plurality of redundancy devices, each having a plurality of redundancy modules,
  • FIG. 2 shows an exemplary embodiment of a submodule device which, in the multilevel converter according to FIG.
  • Figure 3 shows an embodiment of a Redundanzein ⁇ direction, which can be used in the Multilevelumrichter according to Figure 1, wherein the redundancy device submodules in the form of half-bridge modules,
  • FIG. 4 shows an exemplary embodiment of a submodule device that can be used in the multilevel converter according to FIG. 1, the submodule device having submodules in the form of full bridge modules, FIG.
  • FIG. 5 shows an exemplary example of a Redundanzein ⁇ device which can be used in the Multilevelumrichter according to FIG 1, wherein the redundancy danz raised submodules in the form of a full bridge modules comprising
  • FIG. 6 shows, by way of example, the time profile of a control signal which is suitable for repeated ignition of semiconductor switches of the redundancy devices according to FIGS. 3 and 5,
  • redundancy ⁇ direction which can be used in the Multilevelumrichter according to Figure 1, wherein an impedance is connected in series with a semiconductor switch of the redundancy device, and an embodiment of a Redundanzein ⁇ direction, which are used in the Multilevelumrichter according to FIG can, wherein in parallel with the semiconductor switches of the redundancy device in each case an impedance is connected in series.
  • FIG. 1 shows an exemplary embodiment of a three-phase multilevel converter 5.
  • This includes AC voltage terminals W5 for feeding or exiting alternating ⁇ current and two DC voltage terminals G5a and G5b, where a DC or a variable-time DC power is fed or removed.
  • the direction of the energy flow and the time profile of the output voltage, whether at the AC voltage terminals W5 or the DC voltage terminals G5a and G5b, depends on the driving of submodule devices SME, which are connected in series in series circuits R1, R2 and R3. Such a control can be taken over by a central control device ZSE.
  • Each of the three series circuits Rl, R2 and R3 is in the embodiment of Figure 1 each with eight in series switched sub-module devices SME and two inductors L equipped. Between each of the two inductors L there is an intermediate connection Za, which lies in terms of potential between the four submodules SME in FIG. 1 and the four submodules SME in FIG. 1 and forms one of the three AC voltage connections W5 of the multilevel converter 5.
  • Multilevel converter 5 according to FIG. 1, a submodule device group SG which lies electrically between one of the intermediate connections Z and one of the DC voltage connections.
  • each of the Submodul bootss succession SG preferably at least one switching device T is present, which is connected in parallel to one of the submodule devices SME and makes them a redundancy RE: If the respective switching device T is turned on, the parallel submodule device SME is short-circuited and thereby deactivated. If the respective switching device T ⁇ turned off, so the parallel lying Submodul immunity SME is activated so that this, like the other be ⁇ -sensitive in operation Submodul respondeden SME operates. The respective switching state of the switching device T ⁇ decision is thus made on the operating state of the parallel sub ⁇ module means SME or whether it is enabled and works as a normal Submodul pain or not.
  • the already mentioned central control device ZSE is used in
  • the redundancy ⁇ equipment RE within the series circuits Rl to R3 in the embodiment according to figure 1 are possible liehst directly or directly connected to the alternating-voltage terminals of the W5
  • Multilevel converter 5 connected. It is in particular ⁇ sondere advantageous if RE are within the series circuits Rl to R3 more Submodul drivenen SME between the DC terminals and G5a G5b and the redundancy device as between the alternating-voltage terminals W5 and the redundancy device RE.
  • FIG. 2 shows an exemplary embodiment of a submodule device SME that can be used in the multilevel converter 5 according to FIG.
  • the Submodul pain SME may comprise a single sub-module 10 or - as in the embodiment according to FIG 2 - a plurality of Submodu ⁇ len 10, which are connected in series.
  • the sub-modules 10 of Figure 2 is so-called half-bridge ⁇ modules, each comprising two switching elements 11, which may be each formed by a switching Halbleiterkompo ⁇ component, such as a transistor or the like.
  • To each of the switching elements 11 ne 12 is connected in parallel. Parallel to the series scarf ⁇ tion of the switching elements 11 and the diodes 12 is a capacitor thirteenth
  • FIG. 3 shows an exemplary embodiment of a redundancy device RE that can be used in the multilevel converter 5 according to FIG.
  • the redundancy device RE may comprise a single redundancy module 20 or - as in the embodiment according to Figure 3 - a plurality of Redun ⁇ danzmodulen 20 connected in series and form a Redundanzmo ⁇ dul Glansciens 21st
  • the redundancy modules 20 according to FIG. 3 may be half-bridge modules, as have been described in connection with FIG.
  • the redundancy modules 20 may be modules that are identical to the submodules 10 of the submodule device SME according to FIG. 2;
  • the half-bridge modules or the redundancy modules according to FIG. 3 reference should therefore be made to the above explanations.
  • a switching device 100 is switched, which is switched on in the normal operating mode of the Multilevelumrichters 5 and switched off in intentionallybe ⁇ operating mode of the Multilevelumrichter 5.
  • the switching device 100 has a parallel circuit which comprises at least one mechanical switch 110 and a semiconductor switch 120 connected in parallel thereto.
  • the semiconductor switch 120 is preferably a Thyris ⁇ tor.
  • the already mentioned central control device ZSE or one of the redundancy device RE assigned and this controlling another, local (preferably the central control device ZSE subordinate) control device LSE is preferably ⁇ designed such that they in the context of activation of the replacement operation of the Multilevelumrichters 5, ie before, during or after switching off the mechanical switch 110, to a control input E120, in particular ignition input, of the semiconductor switch 120 a periodic control signal ST, preferably a Pulskamm as in Figure 6 by way of example Darge ⁇ represents, applies.
  • the electrical energy for generating the control or ignition signal ST, for example, of the pulse comb according to FIG 6, ent ⁇ the controller ZSE or LSE preferably increases from the capacitors or the intermediate circuits of other sub-modules 10 of Figure 2 or other Submodul raiseden SME according to FIG 1.
  • an electrically directly adjacent ie directly connected to
  • Submodule 10 is used.
  • sub-modules 10 for energy extraction for the purpose of generating the control or Zündsig ⁇ Nals, for example, of the pulse comb according to Figure 6 are to be herangezo ⁇ gene so accordingly preferably also electrically adjacent or possible lying on similar potentials submodules chosen for reasons of redundancy.
  • the control device ZSE or LSE will preferably leave the semiconductor switch 120 switched on or repeatedly, in particular by means of the periodic control signal ST according to FIG. 6, until the mechanical switch 110 is completely switched off and deionized and the current passed through it falls below a predetermined threshold.
  • the controller ZSE or LSE will monitor for this purpose, the current through the mechanical switch 110 is preferably by means of a not shown in the figures, the current sensor via ⁇ .
  • the control device ZSE or LSE the semiconductor switch 120 for a fixed predetermined period of time, which begins with the switching off of the mechanical switch 110 or with the generation or application of a corresponding turn-off, turned on, or repeated, in particular by means of periodic control signal according to Figure 6, turns on.
  • control device ZSE or LSE is configured such that it switches the semiconductor switch 120 on again at a later time or can be switched on, provided that the voltage across the individual capacitors of the redundancy modules 20 reaches or exceeds a predetermined maximum voltage ⁇ and / or the sum voltage of the voltages of the capacitors of the redundancy module series circuit 21 reaches or exceeds a predetermined maximum sum voltage.
  • the outer terminals of the redundancy RE which are used to form the series circuit Rl, R2, and R3 are designated by the reference characters AI and A2 (see also Figure 1).
  • FIG. 4 shows a further exemplary embodiment of a submodule device SME which can be used in the multilevel converter 5 according to FIG.
  • the submodule device SME may comprise a single submodule 40 or, as in the exemplary embodiment according to FIG. 4, a multiplicity of submodules 40 which are connected in series.
  • full-bridge modules each of which includes four switching elements 41, which overall forms can be in each case by a switching Halbleiterkompo ⁇ component, such as a transistor or the like.
  • a diode 42 is connected in parallel in each case.
  • the switching elements are connected in pairs in series.
  • Parallel to the series scarf ⁇ lines is a capacitor 43.
  • the outer terminals of the submodule device SME, which are used to form the series circuit Rl, R2, and R3, respectively, are identified by the reference symbols A1 and A2 (see also FIG. 1).
  • FIG. 5 shows a further exemplary embodiment of a redundancy device RE which can be used in the multilevel converter 5 according to FIG.
  • the Redundanzeinrich- tung RE may comprise a single redundancy module 50 or - as in the embodiment according to Figure 5 - a plurality of redundancy modules 50 connected in series and form a Re ⁇ dundanzmodul Herbertnsciens 51st
  • the redundancy modules 50 according to FIG. 5 may be full-bridge modules, as have been described in connection with FIG. 4; With regard to the structure of the full bridge modules or the redundancy modules 50 according to FIG. 5, reference should therefore be made to the above explanations.
  • a switching device 500 is connected in parallel, which is turned on in Normalbe ⁇ operating mode of the Multilevelumrichters 5 and is turned off in the replacement mode of operation Multilevelumrichters. 5
  • the switch means 500 comprises in the embodiment according to FIG 5 to a parallel circuit comprising at least egg ⁇ NEN mechanical switch 110 and switched in parallel to two ended semiconductor switch 120th
  • the semiconductor switches 120 are preferably thyristors, which are connected in parallel or opposite polarity.
  • the above-mentioned central controller ZSE or one of the redundancy device RE assigned to other, local STEU ⁇ er worn LSE is preferably designed such that they in connection with the activation of the replacement operation of the Multilevelumrichters 5, before then, during or after the off ⁇ switch of the mechanical switch 110, to the control inputs of the semiconductor switches 120 E120 periodic control signals ST, preferably combs pulse is shown by way of example in Figure 6, applies.
  • the electrical energy for generating the control and ignition ⁇ signals takes the control device ZSE or LSE preferably capacitors of the intermediate circuits con- or the other sub-modules 10 or 40 according to Figure 2 or 4 or other Submodule devices SME according to FIG. 1.
  • the electrical energy for generating the control or ignition signals or the pulse combs according to FIG or intermediate circuit of a submodule 10 is removed, which is as close as possible electrically and at a similar potential, at least not to ⁇ different potential as the semiconductor switch 120 is located. It is particularly advantageous if an electrically directly adjacent (ie, directly connected to the semiconductor switches 120) submodule 10 is used.
  • control device ZSE or LSE will preferably leave the semiconductor scarf ter ⁇ ter 120 turned on or repeatedly, in particular by means of the periodic control signal ST according to Figure 6, turn on until the mechanical switch 110 is turned off and the current passed through it falls below a predetermined threshold ne.
  • the control device ZSE or LSE will monitor the current through the mechanical switch 110, preferably by means of a current sensor, not shown in the figures.
  • control device ZSE or LSE the semiconductor switches for a fixed period of time after the mechanical switch 110 or the generation or application of a corresponding disconnection command to the power off with 120 turned on, or as derholt ⁇ , in particular by means of the periodic Control signal ST according to Figure 6, turns on. It is also advantageous if the control device ZSE or LSE is configured such that it switches the semiconductor switch 120 on again at a later time or leaves it on, provided that the voltage across the individual capacitors of the redundancy modules 50 reaches or exceeds a predetermined maximum voltage and / or or the sum voltage of the voltages of the capacitors of the redundancy module series circuit 51 reaches or exceeds a predetermined sum maximum voltage.
  • 6 shows an exemplary embodiment of the amplitudes ⁇ running a control signal ST, which constitutes a pulse sequence or a pulse comb, over the time t.
  • the control signal ST is suitable for repeated or periodic switching on of the semiconductor switches 120 according to FIGS. 3 and 5.
  • FIGS. 7 and 8 show further exemplary embodiments of redundancy devices RE which can be used in the multilevel converter 5 according to FIG.
  • an impedance Z is in each case connected in series with the semiconductor switches 120.
  • the impedance Z can serve to intentionally cause a voltage drop, which in turn causes the charging of the capacitors of the redundancy mode. specifically influenced.
  • the semiconductor switch lying with the Impe ⁇ impedance Z in series is opened only 120 in this case are when the capacitors of the Redundanzmo ⁇ modules sufficiently, so charged, for example, to a predetermined minimum voltage and the redundant modules are be ⁇ drive capable.
  • the impedance Z is preferably an ohmic resistor, an inductor or a combination of an inductor and a resistor, ⁇ example, in the form of a series or parallel connection.
  • the impedance Z may, for example, be one in which the real part is at least 10 times larger in magnitude than the imaginary part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Power Conversion In General (AREA)

Abstract

L'invention concerne un convertisseur à plusieurs niveaux (5) comprenant une pluralité de sous-modules (10, 40) montés en série qui comportent respectivement au moins un condensateur (13, 43) et qui, lors des phases de décharge, émettent du courant électrique au moyen du condensateur (13, 43), et lors des phases de charge, emmagasinent du courant électrique pour charger le condensateur (13, 43). Selon l'invention, le convertisseur à plusieurs niveaux (5) comporte au moins un module de redondance (20, 50) qui, lorsque le convertisseur à plusieurs niveaux (5) se trouve en mode de fonctionnement normal, est inactif et qui, lorsque le convertisseur à plusieurs niveaux (5) se trouve en mode de fonctionnement de secours, fonctionne comme un sous-module (10, 40), un dispositif de couplage (100, 500) étant monté en parallèle avec le module de redondance (20, 50) ou un circuit série de module de redondance (21, 51) comportant le module de redondance (20, 50), ce dispositif de couplage étant mis sous tension pendant le mode de fonctionnement normal et mis hors tension pendant le mode de fonctionnement de secours.
PCT/EP2015/073369 2015-10-09 2015-10-09 Convertisseur à plusieurs niveaux présentant un module de redondance WO2017059924A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE212015000322.1U DE212015000322U1 (de) 2015-10-09 2015-10-09 Multilevelumrichter mit Redundanzmodul
PCT/EP2015/073369 WO2017059924A1 (fr) 2015-10-09 2015-10-09 Convertisseur à plusieurs niveaux présentant un module de redondance
CN201590001622.4U CN209046521U (zh) 2015-10-09 2015-10-09 多电平转换器和具有多电平转换器的装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/073369 WO2017059924A1 (fr) 2015-10-09 2015-10-09 Convertisseur à plusieurs niveaux présentant un module de redondance

Publications (1)

Publication Number Publication Date
WO2017059924A1 true WO2017059924A1 (fr) 2017-04-13

Family

ID=54292792

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/073369 WO2017059924A1 (fr) 2015-10-09 2015-10-09 Convertisseur à plusieurs niveaux présentant un module de redondance

Country Status (3)

Country Link
CN (1) CN209046521U (fr)
DE (1) DE212015000322U1 (fr)
WO (1) WO2017059924A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109039044A (zh) * 2018-08-29 2018-12-18 西安交通大学 基于柔性直流输电系统的mmc冗余功率模块控制方法
US20190068076A1 (en) * 2016-03-28 2019-02-28 Mitsubishi Electric Corporation Power Conversion Device
CN111694271A (zh) * 2020-07-15 2020-09-22 中国核动力研究设计院 基于分布式控制系统的冗余容错控制系统和方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3913781A1 (fr) * 2020-05-22 2021-11-24 GE Energy Power Conversion Technology Ltd. Convertisseurs modulaires multiniveaux

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030184926A1 (en) * 2002-04-01 2003-10-02 Uis Abler Electronics Co., Ltd. Hybrid switch module for an AC power capacitor
CN102868290A (zh) * 2012-09-05 2013-01-09 华北电力大学 全桥型mmc-hvdc子模块故障就地诊断与保护方法
EP2595302A1 (fr) * 2011-11-21 2013-05-22 ABB Technology AG Procédé et dispositif pour le maintien d'un module d'alimentation pendant l'operation d'un convertisseur multi-cellule modulaire
CN103337951A (zh) * 2013-06-28 2013-10-02 中国西电电气股份有限公司 一种基于载波移相调制的mmc冗余保护策略的实现方法
WO2014072488A2 (fr) * 2012-11-08 2014-05-15 Rheinisch-Westfälisch-Technische Hochschule Aachen Convertisseur doté de cellules montées en série
DE102013201311A1 (de) * 2013-01-28 2014-07-31 Siemens Aktiengesellschaft Anordnung sowie Verfahren zum Zuschalten eines Kondensators
WO2015155112A1 (fr) * 2014-04-07 2015-10-15 Abb Technology Ag Convertisseur modulaire multiniveaux à cellules de convertisseur redondantes en mode veille

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030184926A1 (en) * 2002-04-01 2003-10-02 Uis Abler Electronics Co., Ltd. Hybrid switch module for an AC power capacitor
EP2595302A1 (fr) * 2011-11-21 2013-05-22 ABB Technology AG Procédé et dispositif pour le maintien d'un module d'alimentation pendant l'operation d'un convertisseur multi-cellule modulaire
CN102868290A (zh) * 2012-09-05 2013-01-09 华北电力大学 全桥型mmc-hvdc子模块故障就地诊断与保护方法
WO2014072488A2 (fr) * 2012-11-08 2014-05-15 Rheinisch-Westfälisch-Technische Hochschule Aachen Convertisseur doté de cellules montées en série
DE102013201311A1 (de) * 2013-01-28 2014-07-31 Siemens Aktiengesellschaft Anordnung sowie Verfahren zum Zuschalten eines Kondensators
CN103337951A (zh) * 2013-06-28 2013-10-02 中国西电电气股份有限公司 一种基于载波移相调制的mmc冗余保护策略的实现方法
WO2015155112A1 (fr) * 2014-04-07 2015-10-15 Abb Technology Ag Convertisseur modulaire multiniveaux à cellules de convertisseur redondantes en mode veille

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190068076A1 (en) * 2016-03-28 2019-02-28 Mitsubishi Electric Corporation Power Conversion Device
US10855168B2 (en) * 2016-03-28 2020-12-01 Mitsubishi Electric Corporation Power conversion device having bypass circuit protection
CN109039044A (zh) * 2018-08-29 2018-12-18 西安交通大学 基于柔性直流输电系统的mmc冗余功率模块控制方法
CN111694271A (zh) * 2020-07-15 2020-09-22 中国核动力研究设计院 基于分布式控制系统的冗余容错控制系统和方法
CN111694271B (zh) * 2020-07-15 2022-02-01 中国核动力研究设计院 基于分布式控制系统的冗余容错控制系统和方法

Also Published As

Publication number Publication date
CN209046521U (zh) 2019-06-28
DE212015000322U1 (de) 2018-05-14

Similar Documents

Publication Publication Date Title
EP3172824B1 (fr) Système modulaire de convertisseur direct et d'accumulateur d'énergie
EP3005543B1 (fr) Convertisseur cc/cc modulair multi-niveaux pour les applications haute tension
EP3072143B1 (fr) Dispositif de commutation d'un courant continu
WO2008110129A1 (fr) Procédé pour limiter les dommages à un redresseur présentant un semi-conducteur de puissance dans le cas d'un court-circuit dans un circuit intermédiaire à tension continue
WO2016005101A1 (fr) Convertisseur ayant une topologie de commutation redondante
EP3562701A1 (fr) Découplage basse tension composé d'un système modulaire accumulateur d'énergie-onduleur
WO2014056540A1 (fr) Convertisseur continu-continu multi-niveaux modulaire pour applications ccht
WO2010025758A1 (fr) Dispositif présentant un convertisseur de fréquence
EP2425513A1 (fr) Sous-module pour redresseur à plusieurs étages, à accumulateur d'énergie additionnel
WO2012156261A2 (fr) Ensemble convertisseur
EP3480932A1 (fr) Agencement électrique pourvu de modules partiels ainsi que des tels modules partiels
EP2764595A1 (fr) Procédé de protection d'un condensateur de circuit intermédiaire dans un circuit de conversion de courant
WO2017059924A1 (fr) Convertisseur à plusieurs niveaux présentant un module de redondance
EP2553799A2 (fr) Convertisseur direct sans transformateur
DE102012204046B3 (de) Multizellenkonverter
WO2009043186A2 (fr) Système de protection contre les courts-circuits de redresseurs à circuit intermédiaire de tension
EP3251194B1 (fr) Ensemble d'accumulation d'énergie
WO2014072488A2 (fr) Convertisseur doté de cellules montées en série
EP3662572A1 (fr) Sous-module conçu pour un convertisseur modulaire multiniveaux
WO2018138017A1 (fr) Module à semi-conducteur
WO2020043273A1 (fr) Agencement présentant un module d'un convertisseur de puissance multiniveau
EP3269033B1 (fr) Dispositif electrique comprenant des sous-modules
DE102018207373A1 (de) Umrichtervorrichtung für einen Elektromotor
WO2010115713A2 (fr) Convertisseur cc/cc
EP3391524B1 (fr) Module de conversion destiné à un convertisseur multiniveaux et son procédé d'operation.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15778650

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 212015000322

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15778650

Country of ref document: EP

Kind code of ref document: A1