EP3788710A1 - Dispositif et procédé d'alimentation en courant continu - Google Patents

Dispositif et procédé d'alimentation en courant continu

Info

Publication number
EP3788710A1
EP3788710A1 EP18738205.6A EP18738205A EP3788710A1 EP 3788710 A1 EP3788710 A1 EP 3788710A1 EP 18738205 A EP18738205 A EP 18738205A EP 3788710 A1 EP3788710 A1 EP 3788710A1
Authority
EP
European Patent Office
Prior art keywords
voltage
phase
converter
mmc
frequency
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.)
Pending
Application number
EP18738205.6A
Other languages
German (de)
English (en)
Inventor
Martin Pieschel
Wolfgang HÖRGER
Peter Utz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens Energy Global GmbH and Co KG
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 Energy Global GmbH and Co KG filed Critical Siemens Energy Global GmbH and Co KG
Publication of EP3788710A1 publication Critical patent/EP3788710A1/fr
Pending legal-status Critical Current

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
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
    • H02M5/12—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion of voltage or current amplitude only
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
    • H02M5/14—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion between circuits of different phase number
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
    • H02M5/16—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion of frequency
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/225—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode comprising two stages of AC-AC conversion, e.g. having a high frequency intermediate link
    • 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
    • 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

Definitions

  • the invention relates to a device for DC power supply and a method associated with operating the device according to the preambles of claims 1 and 8.
  • Devices for direct current supply also called direct current sources
  • Such devices are connected to an electrical energy network, which provides a three-phase AC voltage with a network frequency of 50-60 Hz and supplies the device with an AC current.
  • a bridge rectifier is usually used for rectification, which is connected via a transformer for voltage adjustment.
  • the bridge rectifier also increases the harmonic content, which has to be reduced by complex measures such as passive filters. Due to the reactive power, other measures such as dynamic compensation systems may also be required.
  • the object of the invention is to provide a low-loss device and an associated method for direct current supply (direct current source), in particular for the medium voltage range and for high powers with relatively small transformers, which have neither reactive power nor harmonics in the power supply network (supply network). submit .
  • the object is achieved based on the device by the features of claim 1 and based on the associated method by the features of claim 8; the subclaims represent advantageous refinements.
  • the solution provides that, in order to generate the control signals, the measured direct voltage and the measured direct current are supplied to the control unit so that the multi-stage converter converts the multi-phase first alternating voltage into a single-phase or a multiphase second alternating voltage with a second frequency transferred, the frequency of which is greater than the first frequency, that at least one transformer designed on the primary and secondary sides for the same number of phases as the second AC voltage (for example three-phase AC transformer) is connected to the multi-stage converter, which converts the second AC voltage into a (same number Pha sen as the second AC voltage) transformed third AC voltage of the same frequency and number of phases, the voltage amplitude is smaller than the voltage amplitude of the first AC voltage, and that the rectifier circuit to the at least one n The transformer is connected and the third AC voltage is converted into a DC voltage.
  • the multi-stage converter converts the multi-phase first alternating voltage into a single-phase or a multiphase second alternating voltage with a second frequency transferred, the frequency of which is greater than the
  • the rectifier circuit is advantageously formed with a single-phase third AC voltage from a single-phase bridge rectifier and a DC voltage converter and with a multi-phase third AC voltage from a bridge rectifier having the same number of phases as the third AC voltage and a DC-DC converter.
  • the bridge rectifier is expediently designed as a controlled bridge rectifier.
  • the DC / DC converter is designed as a step-up converter so that the multistage converter is not burdened with current distortion on its high-frequency side.
  • the DC-DC converter can be designed as a buck converter.
  • At least two transformers connected in parallel on the primary side are advantageously connected to the multi-stage converter.
  • At least two transformers connected in series on the primary side are connected to the multi-stage converter.
  • At least two transformers connected in parallel on the primary side are advantageously connected to the multistage converter (MMC).
  • MMC multistage converter
  • At least two transformers connected in series on the primary side are connected to the multi-stage converter (MMC).
  • MMC multi-stage converter
  • the solution provides that the DC voltage and the DC current are measured in order to generate the control signals and that the multi-stage converter (MMC) is controlled accordingly (taking into account the respective measured values) that the multi-phase first AC voltage is generated by the multi-stage converter (MMC).
  • the line-frequency three-phase AC voltage in the medium voltage range is transformed by means of multi-phase multi-stage converters (Modular Multilevel Converter MMC) in double star topology (M2C) or matrix topology (M3C) into an AC voltage of higher frequency, in particular high frequency of approx. 100 to 500 Hz, which with compact high-frequency transformers can be translated to a lower voltage amplitude, in particular a significantly lower voltage amplitude of approximately 600 to 1000 V.
  • MMC Multi-phase multi-stage converters
  • M2C double star topology
  • M3C matrix topology
  • the AC voltage is rectified and set to the desired DC voltage with a DC voltage converter.
  • 1 is a device for direct current supply with a modular multi-stage converter
  • FIG. 2 shows an embodiment of the device with the multi-stage converter for increasing the frequency and a single-phase transformer for reducing the voltage amplitude
  • FIG. 3 shows an embodiment of the device with the multi-stage converter for increasing the frequency and two single-phase transformers connected in parallel on the primary side for reducing the voltage amplitude
  • 4 shows an embodiment of the device with the multi-stage converter for increasing the frequency and two single-phase transformers connected in series on the primary side for reducing the voltage amplitude
  • 5 shows an embodiment of the device with the multi-stage converter for increasing the frequency and a three-phase transformer for reducing the voltage amplitude
  • FIG. 6 shows an embodiment of the device with the multi-stage converter for increasing the frequency and two three-phase transformers connected in parallel on the primary side for reducing the voltage amplitude
  • FIG. 7 shows an embodiment of a multi-stage converter with three line-side phase connections and two transformer-side phase connections
  • Fig. 11 the construction of a power module of the submodule
  • Fig. 12 the construction of a capacitor module of the submodule
  • 15 is a single-phase rectifier circuit with egg nem single-phase controlled bridge rectifier
  • 16 is a three-phase rectifier circuit with a three-phase controlled bridge rectifier
  • FIG. 21 shows an embodiment of a DC-DC converter formed as a step-down divider
  • FIG. 22 shows an embodiment of a DC-DC converter formed as a step-up converter
  • FIG. 1 an arrangement 1 is shown with a device 2 for DC power supply, to which a modular multi-stage converter MMC (Modular Multilevel Converter MMC) belongs.
  • the modular multi-stage converter MMC is three-phase electrically connected via a connecting rail 3 to a power supply network 4, which provides a three-phase first AC voltage Ulac as an AC connection voltage.
  • the current flowing through the multistage converter MMC is measured by means of a current sensor 5.
  • Current measured values 6 are transmitted to a control unit 7 of the modular multi-stage converter MMC.
  • a Voltage sensor 8 (which is embodied here as a measuring transducer) measures the voltage applied to the connecting bar 3, which essentially corresponds to the first AC voltage Ulac applied to the modular multi-stage converter MMC.
  • the voltage measured values 9 of the first AC voltage Ulac are transmitted to the control unit 7.
  • control unit 7 calculates control signals 11 as a function of operating point specifications, which are transmitted to the modular multi-stage converter MMC.
  • the multi-stage converter MMC is controlled in such a way that on the direct voltage side at the direct current load 12, here at the two direct current loads 12a, 12b, the given direct current values 14a, 14b and the given direct voltage Udc with the direct voltage values 13a, 13b len.
  • the current DC and DC voltage values 14a, 14b, 13a, 13b are measured by means of one current sensor 15a, 15b and one voltage sensor 16a, 16b; the direct current and direct voltage values 14a, 14b, 13a, 13b are transferred to the control unit 7.
  • the control unit 7 controls the multistage converter MMC and thus the device 2 for DC supply.
  • an embodiment 2a of the device 2 is Darge, in which a multi-stage converter MMC is used, the three-phase first AC voltage Ulac with a first frequency NI of 50 or 60 Hz in a single-phase second AC voltage U2ac high second frequency N2 approx. 100 to 500 Hz, here converted from 150 Hz as an example, that is to say that the second frequency N2 is (substantially) larger than the first frequency, in this case many times larger.
  • This high-frequency second AC voltage U2ac is reduced with a single-phase transformer 17a in the voltage amplitude (here from 12000-20000 V to 600 to 1000 V) and from a rectifier circuit 18a to a DC voltage Udc.
  • a single-phase transformer 17a in the voltage amplitude (here from 12000-20000 V to 600 to 1000 V) and from a rectifier circuit 18a to a DC voltage Udc.
  • an embodiment 2b of the device 2 is Darge, in which, in contrast to Fig. 2, two single-phase transformers 17a (instead of a single-phase transformer 17a) reduce the high-frequency second AC voltage U2ac in the voltage amplitude accordingly and in each case by a rectifier circuit 18a convert into a direct voltage Udc.
  • the two transformers 17a are primarily connected in parallel to the multistage converter MMC.
  • FIG. 4 shows an embodiment 2c of the device 2, in which, in contrast to FIG. 3, the two single-phase transformers 17a are connected in series.
  • an embodiment 2d of the device 2 is Darge, in which a multi-stage converter MMC is used, the three-phase first AC voltage Ulac with a first frequency NI of 50 or 60 Hz in a three-phase second AC voltage U2ac high second frequency N2 approx. 100 to 500 Hz, here transferred from 150 Hz as an example, ie the second frequency is (significantly) larger than the first frequency, here again many times larger.
  • This high-frequency three-phase second alternating voltage U2ac is reduced in voltage amplitude again with a three-phase transformer 17b and converted into a direct voltage Udc by a rectifier circuit 18b.
  • FIG. 6 shows an embodiment 2e of the device 2, in which, in contrast to FIG. 5, two three-phase transformers 17b reduce the high-frequency second AC voltage U2ac again in the voltage amplitude and each lead from a rectifier circuit to a DC voltage Udc.
  • the two transformers 17b are connected in parallel on the primary side to the multistage converter MMC.
  • FIG. 7 an embodiment of a multi-stage converter MMC is shown with three network-side phase connections A, B, C on one network connection side and two transformer-side phase connections U, V on the other opposite transformer connection side.
  • the corresponding AC voltage U2ac is provided at the connections U, V.
  • the three other connections A, B, C of the phase modules 19 are each connected to a phase (LI, L2 or L3) of the power supply network 4.
  • Fig. 8 shows an embodiment of a three-phase to three-phase multi-stage converter MMC, which in contrast to Fig. 7 has nine phase modules 19, the three phase connections A, B, C and three transformer-side connections U, V, W provide.
  • Fig. 9 the structure of the phase modules 19 with AC voltage connections AC1 and AC2 is shown, which is formed from an inductance 20 and a plurality of submodules 21 connected in series.
  • the current through the phase module 19 is measured by means of a current sensor 19a.
  • Fig. 10 shows a schematic circuit of a submodule 21, which consists of a power module 22, to the intermediate circuit with the DC voltages DC1, DC2 and DC3, DC4 and thus the intermediate circuit voltage Uzk, a capacitor module 23 is connected as energy storage 23a.
  • Suitable semiconductor switches S are e.g. IGBT (bipolar transistors with insulated gate electrode), IGCT, IEGT or MOSFETs.
  • FIG. 12 shows the structure of the capacitor module 23, which consists of a capacitor voltage measurement 24 and a capacitor C, which buffers the intermediate circuit voltage Uzk.
  • Shown in Fig. 13 is a single-phase rectifier circuit 18a, which consists of a single-phase bridge rectifier 25a and a DC-DC converter 26.
  • FIG. 14 shows a three-phase rectifier circuit 18b, which is formed from a three-phase bridge rectifier 25b and a DC-DC converter 26.
  • FIG. 16 shows a three-phase rectifier circuit 18d, which has a three-phase controlled bridge rectifier 25d.
  • 17 shows a single-phase bridge rectifier 25a, which is formed from four diodes 27.
  • a single-phase controlled bridge rectifier ter 25c is shown, the device from four thyristors 28 with a smoothing choke 29 is formed.
  • Fig. 20 shows a three-phase controlled bridge rectifier 25d, the device from six thyristors 28 and a smoothing choke 29 is formed.
  • Fig. 21 shows an embodiment 26a of a DC-DC converter 26 formed as a buck converter, which consists of a semiconductor switch S, a diode D, a buffer capacitor C and a smoothing choke 30.
  • FIG. 22 shows an embodiment 26b of a DC-DC converter 26, which is designed as a step-up converter and consists of Semiconductor switch S, a diode D, a buffer capacitor C and a smoothing choke 30.
  • the associated method shown in FIG. 23 for generating and providing a direct current has the following essential method steps S:
  • Sa connecting a device 2 to an electrical energy network 4, which provides a multi-phase first AC voltage Ulac as connection AC voltage with a first frequency (its network frequency) NI and supplies the device 2 with an AC current,

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Abstract

L'invention concerne un dispositif (2) et un procédé d'alimentation en courant continu. Le dispositif peut être raccordé à un réseau d'énergie (4) à une première tension alternative (U1ac) polyphasée présentant une première fréquence (N1), et comporte un convertisseur à plusieurs étages (MMC) comprenant plusieurs modules de phase (19) qui sont chacun constitués de plusieurs sous-modules (21) à deux pôles montés en série qui présentent chacun plusieurs commutateurs à semi-conducteur (S) et un accumulateur d'énergie (23a), une unité d'activation (7) qui génère des signaux d'activation (11) pour la commande du convertisseur à plusieurs étages (MMC), et un circuit redresseur (18a). L'invention vise à obtenir une alimentation en courant continu (source de courant continu) sans perte, en particulier pour la plage moyenne tension et pour des puissances élevées. À cet effet, le convertisseur à plusieurs étages (MMC) convertit la première tension alternative (U1ac) polyphasée en une deuxième tension alternative (U2ac) monophasée ou polyphasée présentant une deuxième fréquence (N2) plus élevée, au moins un transformateur (17a, 17b) est raccordé au convertisseur à plusieurs étages (MMC) et transforme la deuxième tension alternative (U2ac) en une troisième tension alternative (U3ac) présentant la même fréquence (N2) et le même nombre de phases, la troisième tension alternative (U3ac) étant inférieure à la première tension alternative (U1ac), et le circuit redresseur (18a, 18b, 18c, 18d) est raccordé au/aux transformateurs (17a, 17b) et convertit la troisième tension alternative (U3ac) en une tension continue (Udc).
EP18738205.6A 2018-06-20 2018-06-20 Dispositif et procédé d'alimentation en courant continu Pending EP3788710A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/066369 WO2019242848A1 (fr) 2018-06-20 2018-06-20 Dispositif et procédé d'alimentation en courant continu

Publications (1)

Publication Number Publication Date
EP3788710A1 true EP3788710A1 (fr) 2021-03-10

Family

ID=62846137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18738205.6A Pending EP3788710A1 (fr) 2018-06-20 2018-06-20 Dispositif et procédé d'alimentation en courant continu

Country Status (2)

Country Link
EP (1) EP3788710A1 (fr)
WO (1) WO2019242848A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2845303T3 (pl) * 2012-06-28 2016-10-31 Przekształtnik i sposób przekształcania napięcia
EP3361617A1 (fr) * 2017-02-14 2018-08-15 Siemens Aktiengesellschaft Circuit redresseur pour une installation d'électrolyse

Also Published As

Publication number Publication date
WO2019242848A1 (fr) 2019-12-26

Similar Documents

Publication Publication Date Title
EP2100364B1 (fr) Commande d'un convertisseur modulaire avec des accumulateurs d'énergie répartis
EP1311058B1 (fr) Convertisseur de frequence
DE4439932C2 (de) Wechselrichtervorrichtung
DE102008018497B4 (de) Wechselrichter, insbesondere Solarwechselrichter, mit einem aktven Netzfilter
DE102008014898A1 (de) Verfahren zur Steuerung eines mehrphasigen Stromrichters mit verteilten Energiespeichern bei niedrigen Ausgangsfrequenzen
WO2006000111A1 (fr) Circuit commutateur polyphase pauvre en oscillations harmoniques
EP3136581A1 (fr) Convertisseur de frequence multipoints modulaire et son procede de fonctionnement
EP2707944A1 (fr) Convertisseur hybride et procédé pour la régulation dudit convertisseur hybride
EP2992595A1 (fr) Ensemble mutateur à mutateurs multi-étages câblés en parallèle et son procédé de commande
EP3361617A1 (fr) Circuit redresseur pour une installation d'électrolyse
EP3729626B1 (fr) Onduleur ayant au moins un module convertisseur à trois branches de pont, procédé de fonctionnement et utilisation d'un tel convertisseur
EP2985896B1 (fr) Systeme d'accentuation du facteur de puissance cote reseau de moteurs ec triphases
EP3788710A1 (fr) Dispositif et procédé d'alimentation en courant continu
EP3331118B1 (fr) Installation de transfert d'énergie électrique
EP3806314A1 (fr) Onduleur pour un réseau de courant alternatif
EP3138176B1 (fr) Convertisseur servant à la compensation symétrique d'énergie réactive et procédé permettant le réglage dudit convertisseur
EP3485564B1 (fr) Procédé permettant de faire fonctionner un convertisseur multi-étages polyphasé
DE102009008048A1 (de) Verfahren zur Regelung eines selbstgeführten Netzstromrichters eines Spannungszwischenkreis-Umrichters
AT397321B (de) Schaltungsanordnung bei einem gesteuerten stromrichter
EP3682539B1 (fr) Procédé d'actionnement d'un convertisseur multiphasé à plusieurs étages et convertisseur multiphasé à plusieurs étages correspondant
EP3857691B1 (fr) Dispositif de conversion d'une tension continue
CH714100A2 (de) Verfahren zur Ansteuerung eines mehrphasigen Wechselrichters.
AT404527B (de) Aktive netzspannungsfilterung mit vorgebbarer innerer impedanz
WO2016050720A1 (fr) Redresseur hybride à diodes m2c
EP3291433A1 (fr) Convertisseur de tension continue comprenant un transformateur

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20201124

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20220524