EP1070376A1 - Dispositif et procede pour alimenter en energie electrique une charge electrique - Google Patents

Dispositif et procede pour alimenter en energie electrique une charge electrique

Info

Publication number
EP1070376A1
EP1070376A1 EP99924721A EP99924721A EP1070376A1 EP 1070376 A1 EP1070376 A1 EP 1070376A1 EP 99924721 A EP99924721 A EP 99924721A EP 99924721 A EP99924721 A EP 99924721A EP 1070376 A1 EP1070376 A1 EP 1070376A1
Authority
EP
European Patent Office
Prior art keywords
electrical
load
power supply
energy
line
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.)
Withdrawn
Application number
EP99924721A
Other languages
German (de)
English (en)
Inventor
Michael Weinhold
Leon Voss
Ulrich Halfmann
Rainer Zurowski
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 EP1070376A1 publication Critical patent/EP1070376A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy

Definitions

  • the invention relates to an arrangement for the electrical energy supply of an electrical load, which can be connected to and disconnected from an electrical power supply network via an electrical line.
  • the invention further relates to a method for the electrical energy supply of an electrical load.
  • An arrangement for energy supply is known from US Pat. No. 5,514,915, which in practice is also referred to as “shunt-connected w ”.
  • an energy storage cell is provided for supplying energy to the load, from which electrical energy is taken and can be delivered to the line and thus to the load via a transformer.
  • the transformer has secondary windings that are connected in parallel to the load.
  • the arrangement has a switching element with which the electrical power supply network can be separated from the line.
  • the switching element is designed with controllable semiconductor valves which can be controlled by a control device via a control line.
  • the arrangement is three-phase.
  • the object of the invention is to provide an arrangement for the electrical energy supply of an electrical load, in particular in the event of a fault in the mains voltage provided by the energy supply network, which, based on a “senes-connected ⁇ configuration, also masters a total failure of the energy supply network. Another object is to provide a method for supplying energy to an electrical load that is suitable for this purpose.
  • the object directed to an arrangement for energy supply is achieved by an arrangement for energy supply to an electrical load, which can be connected to and separated from an electrical energy supply network via an electrical line formed with at least two electrical conductors and via a switching element, with an electrical energy supply unit , which is used at least partially for the energy supply of the electrical load and is connected in series with the line, a controllable electrical path being provided via which the electrical conductors can be short-circuited at a location between the switching element and the energy supply unit.
  • a disturbance in the line voltage is understood to mean, for example, a drop in the line voltage or a deviation of the time profile of the line voltage from the sinusoidal shape.
  • energy can be drawn from the energy supply unit, which acts as a compensating voltage on the line and thus on 3 the load can be released.
  • the power supply unit ⁇ mt serially the line is connected the offset voltage is added to the mains voltage. A disturbance in the mains voltage can thus be counteracted simply by adding the compensation voltage.
  • the electrical power supply network can be disconnected from the line.
  • the electrical energy supply of the load is carried out solely from the energy supply unit.
  • the electrical line on the switching element is interrupted.
  • the energy supply network can then no longer act as an undesirable additional load for the energy supply unit when supplying energy to the load.
  • the electrical path can then be used to form a closed circuit with the load, the energy supply unit and the line, by which the conductors of the electrical line are short-circuited between the switching element and the energy supply unit.
  • the controllable electrical path can be used, for example, to connect the electrical line on the switching element on the load side to a reference point of the load.
  • the switching element and / or the electrical path preferably each have at least one controllable valve, in particular a controllable semiconductor valve.
  • the controllable valve can also be designed as a mechanical switch.
  • the switching element and / or the electrical path for example controlled by a control device, can be switched via the respective controllable valve.
  • controllable 4 semiconductor valves can be switched very quickly, so that the arrangement can be switched very quickly in a storage operation with a separate power supply network.
  • the switching member and / or the electrical ⁇ specific path each have at least one throttle. If necessary, such a choke serves to largely block interference signals which may be emitted from the power supply unit to the line and which could reach the power supply network via the line.
  • the energy supply unit has an energy source.
  • the energy source comprises an energy store which can be connected to the load via a power converter.
  • energy can be taken from the energy store in the form of a current, which can be converted via the converter and supplied to the load.
  • Electrical power is delivered to the load. The electrical power can be varied and controlled by appropriately controlling the converter to convert the current.
  • the energy store is advantageously designed for storing electrical and / or mechanical energy.
  • the energy store can be designed, for example, as a flywheel store.
  • the energy store preferably has a superconducting magnet for storing electrical energy. These types of memory are particularly suitable for the present application, and the superconducting magnet can be designed to store energy from 10 MVAs to 1000 MVAs. 5
  • the converter is further preferred via a filter with the
  • the filter can largely block or suppress any interference signals generated by the converter during the conversion.
  • the filter largely prevents the interference signals from being transmitted through the
  • the energy source has a transformer, via which it is connected to the load, the transformer having a secondary winding connected in series with the line.
  • the arrangement is galvanically isolated from the line by the transformer.
  • the switching element, the electrical path and optionally the transformer are preferably three-phase.
  • the arrangement can advantageously be used in a three-phase low, medium or high voltage network.
  • the energy supply network can also be a single-phase AC network.
  • the arrangement is then correspondingly single-phase.
  • the object directed to a method for electrical energy supply is solved by a method for electrical energy supply of an electrical one
  • the electrical load in which in normal operation the electrical load is connected to an electrical power supply network via an electrical line implemented with at least two electrical conductors, wherein the line is connected in series to an energy supply unit which serves to supply the load with energy, and m is a fault operation electrical power supply network is separated from the line by a switching element and a closed circuit with the load 6 and the power supply unit to which the
  • a frequency, an amplitude and a phase position of a voltage delivered by the energy supply unit to the load are synchronized with the network frequency, the amplitude and the phase position of the line voltage supplied by the energy supply network to the line, and the energy supply network with separation of the previously formed closed circuit connected to the line. If the electrical power supply network is disconnected from the line and a trouble-free power supply of the electrical load from the power supply network is possible, the method is used to reconnect the electrical power supply network to the line. A simple return to normal operation is thus possible.
  • the advantages of the arrangement listed above apply mutatis mutandis to the method.
  • FIG. 2 shows an alternative embodiment of the electrical path for the arrangement according to FIG. 1
  • FIG. 3 shows a further arrangement for energy supply
  • FIG 4 shows an arrangement for energy supply for a single-phase energy supply network.
  • the electrical load 2 is connected via an electrical line 3 to an electrical power supply network 4, which can in particular be designed as a three-phase medium or low voltage network for energy distribution.
  • the electrical load 2 can, for example, be a factory, in particular for the production of semiconductor components, which requires a stable, fail-safe energy supply. With such a load 2, a power failure can cause a running production process to be considerably disturbed. After a fault in the production process, it may be necessary to restart it. This can result in part of the results of the production process being unusable, so that great damage occurs. A safe power supply for load 2 is therefore of great importance.
  • line 3 is designed as a three-phase line, each with three conductors 5, 6 and 7.
  • a switching element 8 is connected in line 3, with which the energy supply network 4 can be separated from line 3.
  • the arrangement 1 has an energy supply unit 12A with an energy source 12 and a transformer 13, via which the energy supply unit connects the line 3 in series. is switched.
  • the energy supply unit 12 can also be designed without a transformer 13 and can be directly galvanically connected to the line 3.
  • electrical energy can be taken from the energy source 12 and can be delivered to the load 2 via the transformer 13.
  • the transformer 13 has three secondary windings 9, 10 and 11, each of which is connected in series with an associated conductor 5, 6 and 7, respectively.
  • An electrical path 14 can be connected to the conductors 5, 6 and 7 in such a way that they can be short-circuited to one another between the switching element 8 and the power supply unit 12A.
  • the electrical path 14 is connected to the conductors 5, 6 and 7 via the terminals 50, 51 and 52. Both the switching element 8 and the electrical path 14 are designed with controllable valves 15 to 20.
  • the controllable valves 15 to 20 are in particular as controllable semiconductor valves 15 to 20, e.g. as thyristors or as shutdown thyristors (GTO).
  • the controllable valves 15, 16 and 17 of the switching element 8 and the controllable valves 18, 19 and 20 of the electrical path 14 can each be controlled by a control device (not shown in more detail) (see also description of FIG. 4).
  • the controllable valves 18 to 20 are connected as a star.
  • the energy supply network 4 outputs three phase voltages U 1, U 2 and U 3 to the load 2 via the line 3.
  • the energy source 12 can supply a supply voltage UA1, UB1 or UC1 to the transformer 13, which acts as compensation voltages UA2, UB2 or UC2 the respective phase voltages Ul, U2 or U3 are added. 9 This causes a fault in one of the phase voltages Ul to
  • U3 can be counteracted by adding one of the compensating voltages UA2 to UC2.
  • the electrical energy supply network 4 is separated from the line 3 by the switching element 8.
  • the conductors 5, 6 and 7 are connected via the electrical path 14 with the controllable valves 18, 19 and 20 can be short-circuited with one another between the switching element 8 and the power supply unit 12A.
  • the load 2 is then supplied with energy from the energy supply unit 12A.
  • the energy source 12 only delivers energy via the transformer 13 to the load 2.
  • phase voltages U1, U2 and U3 each have a time course oscillating about a reference value and, for example, the voltage U1 is suddenly severely disturbed, including, for example, a sharp drop (possibly below a predetermined limit value) of the amplitude the voltage Ul is to be understood.
  • the valves 18 and 19 of the electrical path 14 are closed, whereby the conductors 5 and 6 are short-circuited.
  • the valve 15 of the 10 switching element 8 opened so that the conductor 5 is separated from the power supply network 4.
  • the valve 20 is subsequently closed, so that all conductors are now short-circuited to one another.
  • valves 16 and 17 of the switching element are also opened so that the power supply network 4 is now completely separated from the line 3.
  • the time sequence and sequence of opening valves 15-17 and closing valves 18-20 can be varied depending on the fault. This applies in particular to the resulting sequence of short-circuiting and the conductors 5, 6 and 7 and the sequence of disconnection of the conductors 5, 6 and 7 from the energy supply network 4.
  • phase voltages U1 to U3 are again emitted undisturbed by the power supply network and each have a network frequency, amplitude and a phase sequence to one another. Furthermore, it is assumed that the compensation voltages UA2, UB2 and UC2 delivered by the energy source 12 to the load 2 each have a frequency, amplitude and a second phase sequence.
  • the frequency and the amplitudes of the compensating voltages UA2, UB2 and UC2 are first synchronized with the mains frequency, the amplitudes and the second phase sequence with the phase sequence of the mains voltages U1 to U3.
  • generally known synchronizing devices with associated measuring devices are not shown.
  • the valves 15 and 16 of the switching element 8 are closed and the valve 18 of the electrical path 14 is opened. This eliminates the short circuit between conductors 5 and 6 and connects conductors 5 and 6 to the power supply network.
  • the valves 19 and 20 of the electrical path are opened and the valve 17 of the switching element 8 is closed.
  • the power supply network 4 is reconnected to the line 3 and the short circuit between the conductors 5, 6 and 7 is canceled again.
  • the chronological sequence and sequence of the closing of the valves 15-17 and the opening of the valves 18-20 can be varied depending on the fault.
  • FIG. 21 An alternative embodiment of an electrical path 21 is shown in FIG.
  • the electrical path 21 has the controllable valves 22, 23 and 24.
  • the valves 22 to 24 are connected as a triangle.
  • the terminals 50, 51 and 52 can be short-circuited via the valves 22 to 24.
  • the electrical path 21 can be switched to the terminals 50, 51 and 52 (see FIG. 1) instead of the electrical path 14 (see FIG. 1).
  • the choice of delta or star connection for the electrical path 14, 21 depends on the respective application and on the properties of the components used to form the electrical path 14, 21.
  • FIG. 3 shows a further arrangement 1 a for the electrical energy supply of the load 2.
  • the star point 26 of the energy supply network 4 is connected to a reference point 27 of the load 2.
  • the electrical path 14 is modified and likewise has a star point 25, which is connected to the star point 26 of the energy supply network 4 and the reference point 27 of the electrical load 2. 12
  • the conductors 5, 6 and 7 are each connected to the electrical power supply network 4 via a respective choke L1, L2 and L3. It can thus be avoided that possibly occurring fault signals US2 reach the power supply network 4 via the conductors 5 to 7.
  • the chokes L1, L2 and L3 can also each be part of the switching element 8.
  • the energy source 12 of the energy supply unit 12A has an energy store 28 which is connected to the transformer 13 via a converter 29 and a filter 30.
  • the energy store 28 supplies its electrical energy in the form of a current I or a voltage U to the converter 29 in order to supply the load 2 with energy.
  • the delivered energy is converted by the converter 29 and, after filtering by the filter 30, is delivered to the load 2 via the transformer 13.
  • the filter 30 is used to filter the currents IP1 to IP3 or voltages UPI to UP3 output by the converter 29.
  • the energy store 28 can be designed to store both mechanical and electrical energy and can be designed, for example, as a flywheel store or as a magnetic store. To store electrical energy, the energy store 28 can have a superconducting magnet 35, which is indicated schematically in FIG. 3.
  • FIG. 4 A further arrangement 1 for the electrical energy supply of the load 2 is shown in FIG. 4, the electrical line 3 being designed as a single-phase line 3 with the conductors 31 and 32.
  • the power supply unit 12A has a transformer 13, which is likewise of a single-phase design 13, via which it is connected to line 3 and thus to load 2.
  • the transformer 13 has only one secondary winding 33, which is connected to the conductor 31 in series.
  • the switching element 8 is also connected in series with the conductor 31.
  • the electrical power supply network 4 can be separated from the conductor 31 by the switching element 8.
  • the switching element 8 is designed with controllable valves 34, which are designed as controllable semiconductor valves 34.
  • the electrical path 14 serves to short-circuit the conductors 31 and 32 to form a closed circuit with the secondary winding 33 and the load 2.
  • the electrical path 14 has the controllable valves 35a, which are designed in particular as controllable semiconductor valves 35a.
  • the energy supply network 4 outputs an electrical voltage UE to the load 2 via the line 3.
  • electrical energy can be drawn from the energy source 12 and can be supplied to the load as a compensating voltage UA via the transformer 13. Due to the serial connection of the secondary winding 33 m the line 31, the compensation voltage UA can be added to the voltage UE.
  • the power supply network 4 In the event of a total failure of the electrical power supply network 4, which means that there is no or a sharp drop in the voltage UE, the power supply network 4 is disconnected from the line 3 by the switching element 8 and the conductors 31 and 32 are short-circuited via the electrical path 14.
  • the electric power supply of the load 2 is performed all from the power source 12 of the Energyversor ⁇ supply unit 12A.
  • the compensating voltage UA In the event of a total failure, the compensating voltage UA is used completely to supply the load 2. 14
  • the arrangement 1b furthermore has a control device 36.
  • the control device 36 is connected to a measuring device 37 via a first measuring line 38, the measuring device 37 being connected to the line 31.
  • the control device 36 is connected to the energy source 12 via a second measuring line 43.
  • the control device 36 is connected to the switching element 8 via a first control line 40, to the electrical path 14 via a second control line 41 and to the energy supply unit 12 via a third control line 42.
  • the control device 36 and the measuring device 37 and other measuring devices which are present in the energy source 12 and are not shown for better clarity are used to control the switching element 8 and the electrical path 14, or to measure the phase voltage UE and the compensation voltage UA emitted by the energy source.
  • the control device 36 and the associated measuring devices 37 for all the arrangements 1, 1a and 1b described here are shown by way of example in FIG. They therefore apply mutatis mutandis as a component of the arrangements 1 and la shown in FIGS. 1 and 3.
  • the measuring devices have the task of measuring the phase voltages U1, U2 and U3 (see FIG. 1), their line frequency, amplitudes and phase sequence. Furthermore, they serve to measure the amplitudes of the compensating voltages UA2, UB2 and UC2, their frequency and their phase sequence as well as the acquisition of all measured quantities which are necessary for monitoring normal operation and fault operation.
  • the control device serves to control the switching element 8, the electrical path 14 and the energy source 12 in normal operation and in fault operation, in particular in one 15 Disconnecting and switching on the power supply network

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

Pour alimenter en énergie une charge électrique (2) raccordée à un réseau d'alimentation en énergie électrique (4), en cas de défaillance, notamment en cas de chute absolue de la tension fournie par le réseau d'alimentation en énergie électrique (4), il est prévu un dispositif (1) comportant une unité d'alimentation en énergie (12A) montée en série par rapport à la charge (2), un organe de commutation (8) et un circuit électrique pouvant être commandé (14, 21). L'énergie est prélevée sur l'unité d'alimentation en énergie (12A) et acheminée à la charge (2). Le réseau d'alimentation en énergie électrique (4) peut être séparé par un organe de commutation (8), et le circuit électrique pouvant être commandé (14, 21) permet de former un circuit de courant fermé avec la charge (2) et l'unité d'alimentation en énergie (12A).
EP99924721A 1998-04-09 1999-03-29 Dispositif et procede pour alimenter en energie electrique une charge electrique Withdrawn EP1070376A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19816174 1998-04-09
DE19816174 1998-04-09
PCT/DE1999/000954 WO1999053593A1 (fr) 1998-04-09 1999-03-29 Dispositif et procede pour alimenter en energie electrique une charge electrique

Publications (1)

Publication Number Publication Date
EP1070376A1 true EP1070376A1 (fr) 2001-01-24

Family

ID=7864277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99924721A Withdrawn EP1070376A1 (fr) 1998-04-09 1999-03-29 Dispositif et procede pour alimenter en energie electrique une charge electrique

Country Status (3)

Country Link
EP (1) EP1070376A1 (fr)
AU (1) AU4131699A (fr)
WO (1) WO1999053593A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007086618A1 (fr) 2006-01-30 2007-08-02 Ajinomoto Co., Inc. Bactérie produisant un acide l-aminé et procédé de production d'acide l-aminé
WO2008044409A1 (fr) 2006-10-10 2008-04-17 Ajinomoto Co., Inc. Procédé de fabrication d'un l-amino acide
WO2008075483A1 (fr) 2006-12-19 2008-06-26 Ajinomoto Co., Inc. Procédé de production d'un acide aminé l
WO2008093829A1 (fr) 2007-02-01 2008-08-07 Ajinomoto Co., Inc. Procede de production d'un acide l-amine
WO2008102572A1 (fr) 2007-02-20 2008-08-28 Ajinomoto Co., Inc. Procédé de fabrication d'acide aminé l ou d'acide nucléique
WO2008114721A1 (fr) 2007-03-14 2008-09-25 Ajinomoto Co., Inc. Microorganisme capable de produire un acide aminé de type acide l-glutamique et procédé de fabrication d'acide aminé
WO2014185430A1 (fr) 2013-05-13 2014-11-20 味の素株式会社 Procédé de fabrication d'acide aminé l
WO2015005406A1 (fr) 2013-07-09 2015-01-15 味の素株式会社 Procédé de fabrication de substance utile
WO2015060314A1 (fr) 2013-10-21 2015-04-30 味の素株式会社 Procédé de production d'un acide aminé de forme l
WO2015060391A1 (fr) 2013-10-23 2015-04-30 味の素株式会社 Procédé de production d'une substance cible
EP3165608A1 (fr) 2015-10-30 2017-05-10 Ajinomoto Co., Inc. Procédé de production d'acide aminé l de la famille glutamate
EP3385389A1 (fr) 2017-04-03 2018-10-10 Ajinomoto Co., Inc. Procédé de production d'acide aminé l à partir de fructose
WO2020071538A1 (fr) 2018-10-05 2020-04-09 Ajinomoto Co., Inc. Procédé de production d'une substance cible par fermentation bactérienne
WO2022092018A1 (fr) 2020-10-28 2022-05-05 味の素株式会社 Procédé de production d'acide l-aminé
EP4345166A2 (fr) 2022-09-30 2024-04-03 Ajinomoto Co., Inc. Procédé de production d'acide l-aminé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6844706B2 (en) * 2002-08-30 2005-01-18 Active Power, Inc. Multiple path variable speed constant frequency device having automatic power path selection capability

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU646957B2 (en) * 1991-07-01 1994-03-10 Superconductivity, Inc. Shunt connected superconducting energy stabilizing system
US5329222A (en) * 1992-11-30 1994-07-12 Westinghouse Electric Corporation Apparatus and method for dynamic voltage restoration of utility distribution networks

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9953593A1 *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007086618A1 (fr) 2006-01-30 2007-08-02 Ajinomoto Co., Inc. Bactérie produisant un acide l-aminé et procédé de production d'acide l-aminé
WO2008044409A1 (fr) 2006-10-10 2008-04-17 Ajinomoto Co., Inc. Procédé de fabrication d'un l-amino acide
WO2008075483A1 (fr) 2006-12-19 2008-06-26 Ajinomoto Co., Inc. Procédé de production d'un acide aminé l
WO2008093829A1 (fr) 2007-02-01 2008-08-07 Ajinomoto Co., Inc. Procede de production d'un acide l-amine
WO2008102572A1 (fr) 2007-02-20 2008-08-28 Ajinomoto Co., Inc. Procédé de fabrication d'acide aminé l ou d'acide nucléique
WO2008114721A1 (fr) 2007-03-14 2008-09-25 Ajinomoto Co., Inc. Microorganisme capable de produire un acide aminé de type acide l-glutamique et procédé de fabrication d'acide aminé
EP2657332A1 (fr) 2007-03-14 2013-10-30 Ajinomoto Co., Inc. Procédé de production de l'acide aminé de la famille de l'acide L-glutamique
WO2014185430A1 (fr) 2013-05-13 2014-11-20 味の素株式会社 Procédé de fabrication d'acide aminé l
WO2015005406A1 (fr) 2013-07-09 2015-01-15 味の素株式会社 Procédé de fabrication de substance utile
EP3521433A1 (fr) 2013-07-09 2019-08-07 Ajinomoto Co., Inc. Procédé de production d'acide l-glutamique
WO2015060314A1 (fr) 2013-10-21 2015-04-30 味の素株式会社 Procédé de production d'un acide aminé de forme l
WO2015060391A1 (fr) 2013-10-23 2015-04-30 味の素株式会社 Procédé de production d'une substance cible
EP3165608A1 (fr) 2015-10-30 2017-05-10 Ajinomoto Co., Inc. Procédé de production d'acide aminé l de la famille glutamate
EP3385389A1 (fr) 2017-04-03 2018-10-10 Ajinomoto Co., Inc. Procédé de production d'acide aminé l à partir de fructose
WO2020071538A1 (fr) 2018-10-05 2020-04-09 Ajinomoto Co., Inc. Procédé de production d'une substance cible par fermentation bactérienne
WO2022092018A1 (fr) 2020-10-28 2022-05-05 味の素株式会社 Procédé de production d'acide l-aminé
EP4345166A2 (fr) 2022-09-30 2024-04-03 Ajinomoto Co., Inc. Procédé de production d'acide l-aminé

Also Published As

Publication number Publication date
AU4131699A (en) 1999-11-01
WO1999053593A1 (fr) 1999-10-21

Similar Documents

Publication Publication Date Title
EP3270501B1 (fr) Dispositif de transmission d'énergie électrique avec une liaison à haute tension continue
EP2282399B1 (fr) Convertisseur statique et procédé de démarrage du convertisseur
WO1999053593A1 (fr) Dispositif et procede pour alimenter en energie electrique une charge electrique
DE19546420C1 (de) Unterbrechungsfreie Stromversorgungseinrichtung
DE102017127311A1 (de) Vorrichtung und Verfahren zur Vormagnetisierung eines Netztransformators in einem Stromrichtersystem
EP1922804A1 (fr) Dispositif de transmission d'energie electrique
EP0227924A2 (fr) Dispositif de régulation de puissance réactive pour commander la puissance réactive et corriger le facteur de puissance
EP1695434A1 (fr) Circuit convertisseur comprenant deux convertisseurs partiels
DE112019003016T5 (de) Ferndifferentialschutzvorrichtung
DE3608704A1 (de) Spannungsspitzen freier festkoerperschalter und einrichtung zur automatischen leistungsfaktor-korrektur
EP0193039A1 (fr) Procédé et dispositif pour une alimentation en courant sans interruption
EP3361593B1 (fr) Alimentation électrique sans interruption pour charges électriques
DE102018128735A1 (de) Umspannanlage eines Energieversorgungsnetzes sowie ein Verfahren zum Betreiben einer Umspannanlage
DE19933811A1 (de) Drehstromtransformator für Mittel- und Hochspannungen mit einer Anordnung zur Spannungsregelung
EP3220527B1 (fr) Convertisseur multi-etage modulaire
DE102017211351A1 (de) Unterbrechungsfreie Stromversorgung
DE2915222C3 (de) Einrichtung zur kontinuierlichen Wechselstromversorgung von Verbrauchern
EP1446708A2 (fr) Procede et dispositif de regulation de la tension electrique
WO2001033308A1 (fr) Procede de regulation de la tension electrique et dispositif permettant de mettre en oeuvre ledit procede
DE2733728A1 (de) Anordnung zur steuerung der welligkeit eines elektrischen stromes
AT523343B1 (de) Hochstromquelle für ein Prüfsystem zur Prüfung einer Elektroenergieeinrichtung sowie Prüfsystem
DE102009006504A1 (de) Anordnung aus Steuerung und Einphasen-Transformator
DE1943840C3 (de) Vorrichtung zum Verbinden zweier Wechselstromnetze
AT402133B (de) Steuereinrichtung für die energieversorgung eines verbraucherkreises eines gleichstromverbrauchers und ein verfahren zum betrieb einer derartigen steuereinrichtung
EP2107861A1 (fr) Agencement de commutation destiné à réduire la tension

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 20000915

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB IT LI SE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ZUROWSKI, RAINER

Inventor name: HALFMANN, ULRICH

Inventor name: VOSS, LEON

Inventor name: WEINHOLD, MICHAEL

17Q First examination report despatched

Effective date: 20010326

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20031001