EP2502340A1 - Convertisseur et sous-module d'un convertisseur destiné à charger ou décharger un réservoir d'énergie - Google Patents

Convertisseur et sous-module d'un convertisseur destiné à charger ou décharger un réservoir d'énergie

Info

Publication number
EP2502340A1
EP2502340A1 EP09771516A EP09771516A EP2502340A1 EP 2502340 A1 EP2502340 A1 EP 2502340A1 EP 09771516 A EP09771516 A EP 09771516A EP 09771516 A EP09771516 A EP 09771516A EP 2502340 A1 EP2502340 A1 EP 2502340A1
Authority
EP
European Patent Office
Prior art keywords
voltage
submodule
capacitor
charging
capacitor unit
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
Application number
EP09771516A
Other languages
German (de)
English (en)
Inventor
Holger Leu
Andreja Rasic
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 AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Publication of EP2502340A1 publication Critical patent/EP2502340A1/fr
Ceased 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

Definitions

  • the invention relates to a submodule for charging or discharging an energy store having a capacitor unit and a power semiconductor circuit, which has switched on and off power semiconductors, wherein the capacitor unit and the power semiconductor circuit are interconnected so that depending on the control of the power semiconductor of the power semiconductor circuit at least on the capacitor falling voltage or zero voltage at output terminals of the submodule can be generated.
  • the invention further relates to a converter with converter valves, which has a series circuit of such submodules.
  • a submodule and such a converter are already known from DE 101 030 31.
  • the Umrich ⁇ ter described there has inverter valves forming a bridge circuit.
  • each Umrichterventil Zvi ⁇ rule an alternating voltage terminal extends to connect the environmental judge voltage connection to an AC voltage supply, a DC-.
  • Each valve has a series circuit ⁇ tion of bipolar submodules, each having a capacitor unit, which is connected in parallel to a power semiconductor circuit.
  • each submodule The two terminals of each submodule are once connected to the capacitor unit and once with the potential point between the two power semiconductor switches ⁇ , each of which a freewheeling diode is connected in parallel in opposite directions. In this way, at the two terminals of each submodule either a zero voltage or the capacitor unit from ⁇ falling capacitor voltage can be generated. In this way, a so-called multistage DC voltage impressing converter is provided.
  • Another charging device for charging a battery has become known from DE 199 13 627 AI. Loading a larger number of energy stores with electrical energy creates a variety of problems.
  • the electric charging device is to be adapted to each energy storage to be charged.
  • different energy stores generally require different charging voltages or charging currents.
  • the device for charging or discharging the energy storage should also be inexpensive.
  • the object of the invention is therefore to provide a submodule and a converter of the aforementioned type, which allow an individual adjustment of the charging process to the requirements of the respective energy storage and which are also inexpensive.
  • the invention achieves this object by virtue of the fact that the energy store can be connected to the submodule via a DC voltage controller, the DC voltage controller being connected to the capacitor unit and for converting a capacitor voltage dropping across the capacitor into a charging voltage which is required for charging the energy store. and configured to convert a discharging voltage dropping to the energy storage during discharging into the capacitor voltage.
  • the invention solves the problem in that converter valves are provided, which consist at least partially of a series circuit sol ⁇ cher submodules.
  • At least one submodule of a modular multistage converter is used for charging external energy stores.
  • a so-called DC voltage controller is provided, which the falling in the capacitor voltage into the respectively required charge or discharge to ⁇ .
  • This has the advantage that the voltage which drops across the capacitors of the submodules can be kept as constant as possible for all submodules.
  • the adaptation to the respective energy storage takes place via the DC voltage controller.
  • the dropped across the capacitor unit of the submodule voltage can be selected by means of the turn-off power semiconductor of the power semiconductor circuit such that it is approximately in the range of charging relationship ⁇ as discharge voltages of the common energy storage.
  • the capacitor voltage for charging accumulators for electric cars is on the order of about 10V.
  • the DC voltage controller therefore does not need to be large To generate voltage differences when converting the DC voltages, so that the requirements of the DC voltage are low, making it cost-effective.
  • the losses of the DC voltage controller, which arise in the conversion of the DC voltage kept low.
  • the DC voltage regulator is connected in parallel with the capacitor unit.
  • an accumulator is provided as energy storage.
  • Accumulators are chemical stores where electrical energy is converted into chemically bound energy and stored. Such accumulators are well known, so that their exact configuration can be omitted at this point. In principle, arbitrary accumulators can be used in the scope of the invention.
  • common battery ⁇ mulatoren here lithium-ion batteries or nickel-cadmium storage batteries may be mentioned. Of course, it is also possible to charge only in the future intended lithium air energy storage with the aid of the device according to the invention or with the submodule according to the invention.
  • the power semiconductor circuit and the capacitor unit are interconnected to form a full-bridge circuit, with four turn-off crugurlei ⁇ ter are provided, each of which a freewheeling diode is connected against ⁇ sensible parallel.
  • Such full bridge circuits are already used as converters or variable voltage sources in the field of energy transfer and energy distribution.
  • the full-bridge circuit it is possible to generate not only a zero voltage and the capacitor voltage but also the inverse capacitor voltage at the output terminals of each sub-module.
  • Deviating from this power semiconductor circuits and capacitor unit form a half bridge circuit having two on and off power semiconductors to which a freewheeling diode is connected in parallel in opposite directions depending ⁇ wells.
  • the submodule has furthermore advantageously has two terminals, one terminal with the capacitor unit and the other terminal connected to the Po ⁇ tenzialddling between the two controllable power semiconductors.
  • the submodule has furthermore advantageously has two terminals, one terminal with the capacitor unit and the other terminal connected to the Po ⁇ tenzialddling between the two controllable power semiconductors.
  • instead of in opposite directions in parallel to a power semiconductor egg ne freewheeling diode in the context of the invention also reverse conducting Kirsmithlei ⁇ terschalter can be used.
  • the DC voltage adjuster has egg ne control unit, which are equipped with measurement sensors for detecting a dropping across the energy store charge or discharge voltage and a falling of the capacitor unit capacitor voltage, the regulation ⁇ unit for adjusting the charging and / or discharge voltage as a function at least one setpoint is set up.
  • the determination of the desired value (s) can be input, for example, by a user. Deviating from this, however, it is also possible to connect the control unit of the DC voltage controller with an energy storage detection unit.
  • the energy storage detection unit reads ⁇ example, in a memory unit of the energy storage of each ⁇ type and the respective required charging relationship ⁇ discharge voltage and transmits this as a setpoint to the control unit of the DC voltage controller. This then provides the output side, the desired discharge rela ⁇ hung as charging voltage, so that the charge relationship ⁇ as discharge of the energy storage can be done with the greatest We ⁇ ciency.
  • the DC voltage controller is, for example, a boost converter or a buck converter.
  • the submodule is a bipolar submodule and has two connection terminals.
  • FIG 1 shows an embodiment of the invention
  • FIG. 1 shows schematically an inverter 1, which consists of a
  • each power semiconductor valve 2, 3, 4, 5, 6 and 7 has a throttle 11 limiting the current flow.
  • connection means 12 for connecting an AC voltage network , This is usually done via a transformer or else galvanically with the aid of chokes or coils, which are connected between the AC voltage terminals 8 and AC voltage not shown in Figure 1.
  • each of the garschlei ⁇ terventile 2, 3, 4, 5, 6 and 7 comprises a series circuit of submodules Bipo ⁇ stellar 13 which are all of identical construction. Therefore, in the right half of Figure 1, only a sub-module 13 is shown in more detail. It can be seen that each submodule 13 has a capacitor unit 14 and a power semiconductor circuit 15 which extends parallel to the capacitor unit 14.
  • the power semiconductor ⁇ circuit 15 has two power semiconductors 16 and 17, which can be both switched on and off.
  • Such power semiconductors are, for example, so-called IGBTs, GTOs, X-FETs, IGCTs or the like. In principle, any turn-off power semiconductor can be used within the scope of the invention.
  • Each of these controllable power semiconductors 16, 17 is a freewheeling diode 18 in opposite directions in parallel ge ⁇ switches. Furthermore, a first terminal 19 is galvanic ⁇ cally connected with the capacitor unit fourteenth A second terminal 20 is connected to the potential point between the power semiconductors 16 and 17. Falls at the condensate sator unit 14 during operation of the converter 1 is a Kon ⁇ densatorschreib U c from.
  • each of the power semiconductor can development of a Unterbrecherstel- 16 or 17, in which a current flow via the respective power semiconductor is interrupted, into its passage position in which a current flow via the power ⁇ semiconductors in a forward direction allows is or vice versa.
  • the power semiconductors 16 and 17, for example, so controlled that the power semiconductor 17 is in its breaker position the power semiconductor 16, however, is in its open position drops at the output terminals 19 and 20, the capacitor voltage U c .
  • the capacitor voltage U c or a zero voltage can be applied to the output terminals 19 and 20.
  • the capacitor unit 14 is connected in parallel with a DC voltage controller 21.
  • the DC voltage controller 21 is the output side connected to an energy storage 22, which is the embodiment shown in Figure 1 is a lithium-ion battery.
  • FIG. 2 shows the submodule of an inverter 1 according to Figure 1 in more detail.
  • the DC voltage controller 21 has a control unit 23 which is connected via Signalleitun ⁇ conditions 24 with voltage sensors 25, which are once for detecting the capacitor voltage U c or for detecting a charging or discharging voltage U L is ⁇ directed.
  • the DC voltage controller 21 is configured to convert the capacitor voltage U c into the charging voltage U L if the accumulator 22 is to be charged.
  • the discharge voltage U L in the capacitor voltage U c in a way that a power flow in both directions through the DC converter 21 is enables.
  • the control unit of the DC voltage controller 21 is connected to a master control unit, can be referred to the 26 beispielswei ⁇ se as so-called "battery management system".
  • the overall battery management system 26 transmits, for example, desired set values, such as charge ⁇ streams and the like before and during a charging process, the control unit 23 to the battery management system, with which optimum charging current by the battery management system can be calculated dynamically 23 to the control unit 26 specific status parameter ,
  • the Batte ⁇ rie management system 26 can be connected to other control units in any manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Dc-Dc Converters (AREA)

Abstract

L'invention concerne un sous-module (13) destiné à charger ou décharger un réservoir d'énergie (22)et comprenant une unité de condensateur (14) et un circuit à semi-conducteurs de puissance (15) qui comporte des semi-conducteurs de puissance (16, 17) pouvant être activés et désactivés, l'unité de condensateur (14) et le circuit à semi-conducteurs de puissance (15) étant reliés entre eux de sorte que, selon la commande des semi-conducteurs de puissance (16, 17) du circuit à semi-conducteurs de puissance (15), au moins la tension aux bornes de l'unité de condensateur (14) ou une tension nulle aux bornes de sortie (19, 20) du sous-module (1) puisse être générée. L'invention vise à mettre au point un sous-module (13) de ce type qui permette une adaptation individuelle de la procédure de charge aux besoins du réservoir d'énergie respectif et qui soit en outre peu coûteux. A cet effet, le réservoir d'énergie (22) peut être relié au sous-module (13) par l'intermédiaire d'un régulateur de tension continue (21), le régulateur de tension continue (21) étant relié à l'unité de condensateur (14) et conçu d'une part pour convertir une tension de condensateur (UC) présente aux bornes de l'unité de condensateur (14) en une tension de charge (UL) qui est nécessaire pour charger le réservoir d'énergie (22), et d'autre part pour convertir une tension de décharge (EL) qui est présente aux bornes du réservoir d'énergie (22) lors de la décharge en la tension de condensateur (UC).
EP09771516A 2009-11-19 2009-11-19 Convertisseur et sous-module d'un convertisseur destiné à charger ou décharger un réservoir d'énergie Ceased EP2502340A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/065491 WO2011060823A1 (fr) 2009-11-19 2009-11-19 Convertisseur et sous-module d'un convertisseur destiné à charger ou décharger un réservoir d'énergie

Publications (1)

Publication Number Publication Date
EP2502340A1 true EP2502340A1 (fr) 2012-09-26

Family

ID=42543236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09771516A Ceased EP2502340A1 (fr) 2009-11-19 2009-11-19 Convertisseur et sous-module d'un convertisseur destiné à charger ou décharger un réservoir d'énergie

Country Status (7)

Country Link
US (1) US8981712B2 (fr)
EP (1) EP2502340A1 (fr)
CN (1) CN102714471B (fr)
BR (1) BR112012012140A2 (fr)
HK (1) HK1174744A1 (fr)
RU (1) RU2524363C2 (fr)
WO (1) WO2011060823A1 (fr)

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WO2020225332A1 (fr) 2019-05-07 2020-11-12 Supergrid Institute Convertisseur de tension multi niveaux à stockage d'énergie additionnel optimisé

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DE102011017597A1 (de) 2011-04-27 2012-10-31 Siemens Aktiengesellschaft Energiespeichervorrichtung, umfassend mehrere Speichermodule für elektrische Energie
DE102011075576A1 (de) * 2011-05-10 2012-11-15 Siemens Aktiengesellschaft Umrichteranordnung
DE102012202173B4 (de) 2012-02-14 2013-08-29 Siemens Aktiengesellschaft Verfahren zum Betrieb eines mehrphasigen, modularen Multilevelstromrichters
DE102012202187B4 (de) 2012-02-14 2016-06-09 Siemens Aktiengesellschaft Verteilungsnetz für elektrische Energie
DE102012205895A1 (de) * 2012-04-11 2013-10-17 Robert Bosch Gmbh Energiespeicherabdeckungsmodul und Verfahren zur Montage eines Energiespeicherabdeckungsmoduls
CN103078539B (zh) * 2013-01-15 2015-02-11 南京南瑞继保电气有限公司 一种模块化多电平换流器的充电方法
DE102013212716A1 (de) * 2013-06-28 2014-12-31 Robert Bosch Gmbh Energiespeichereinrichtung mit Gleichspannungsversorgungsschaltung und Verfahren zum Bereitstellen einer Gleichspannung aus einer Energiespeichereinrichtung
CN104811073B (zh) * 2014-01-24 2019-05-31 通用电气能源电能变换科技有限公司 变换器模块、装置、系统和相关方法
CN107223304B (zh) 2015-02-04 2019-12-17 Abb瑞士股份有限公司 具有能量存储器的多电平变换器
EP3269028B1 (fr) * 2015-04-23 2021-07-28 Siemens Energy Global GmbH & Co. KG Ensemble électrique doté de modules partiels
FR3039940B1 (fr) * 2015-08-03 2017-08-11 Inst Supergrid Capacite virtuelle
ES2805201T3 (es) 2016-03-18 2021-02-11 Siemens Ag Convertidor multietapa modular
DE102016220262A1 (de) * 2016-10-17 2018-04-19 Robert Bosch Gmbh Elektromechanischer Adapter, Energiespeichersystem sowie Verfahren zum Betreiben eines Energiespeichersystems
RU2656302C1 (ru) * 2017-06-26 2018-06-04 Общество с ограниченной ответственностью "ЧЭАЗ-ЭЛПРИ" Подмодуль полумостовой силового полупроводникового модуля
RU2690839C1 (ru) * 2018-09-17 2019-06-06 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Понижающий конденсаторный преобразователь напряжения
EP3633816A1 (fr) * 2018-10-01 2020-04-08 ABB Schweiz AG Agencement d'onduleur utilisant des éléments de distribution d'énergie photovoltaïque

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Publication number Priority date Publication date Assignee Title
WO2020225332A1 (fr) 2019-05-07 2020-11-12 Supergrid Institute Convertisseur de tension multi niveaux à stockage d'énergie additionnel optimisé
FR3095909A1 (fr) 2019-05-07 2020-11-13 Ecole Centrale De Lyon Convertisseur de tension multi niveaux à stockage d’énergie additionnel

Also Published As

Publication number Publication date
RU2012125250A (ru) 2013-12-27
RU2524363C2 (ru) 2014-07-27
CN102714471B (zh) 2016-01-13
HK1174744A1 (zh) 2013-06-14
CN102714471A (zh) 2012-10-03
BR112012012140A2 (pt) 2016-04-12
US20120229080A1 (en) 2012-09-13
WO2011060823A1 (fr) 2011-05-26
US8981712B2 (en) 2015-03-17

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