EP4022728A1 - Procédé de fonctionnement de transformateurs de tension connectés en parallèle - Google Patents

Procédé de fonctionnement de transformateurs de tension connectés en parallèle

Info

Publication number
EP4022728A1
EP4022728A1 EP20754717.5A EP20754717A EP4022728A1 EP 4022728 A1 EP4022728 A1 EP 4022728A1 EP 20754717 A EP20754717 A EP 20754717A EP 4022728 A1 EP4022728 A1 EP 4022728A1
Authority
EP
European Patent Office
Prior art keywords
operating
voltage converters
operating mode
voltage
parallel
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
EP20754717.5A
Other languages
German (de)
English (en)
Inventor
Gholamabas Esteghlal
Markus Klein
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP4022728A1 publication Critical patent/EP4022728A1/fr
Pending 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
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • 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
    • H02M7/493—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 the static converters being arranged for operation in parallel
    • 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
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0009—Devices or circuits for detecting current in a converter
    • 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
    • H02M1/0048—Circuits or arrangements for reducing losses
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/285—Single converters with a plurality of output stages connected in parallel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Definitions

  • the present invention relates to a method for operating voltage converters connected in parallel for at least a first and a second voltage converter connected in parallel on the output side and a device for operating voltage converters connected in parallel for at least one first and a second voltage converter connected in parallel on the output side.
  • the document DE 102016 219 740 A1 discloses a DC voltage converter with several parallel-connected DC voltage converter modules. A common voltage regulator is provided for all DC / DC converter modules. In addition, a separate current control is provided for each DC / DC converter module.
  • Voltage converters are provided to convert an input voltage into an output voltage, it being possible for the voltage level of the input voltage to be different from the voltage level of the output voltage.
  • the maximum output power of a voltage converter is limited according to the dimensioning of the components used. If necessary, several voltage converter modules can be connected in parallel to increase the output power.
  • a voltage converter has an operating point at which its efficiency is optimal.
  • An operating point of a voltage converter can be described and varied using one or more parameters, for example with the parameters output current, input current, output voltage, Input voltage, temperature.
  • some parameters are specified due to the task or due to the components connected to the voltage converter, so that the operating point cannot be freely selected during operation of the voltage converter. This means that voltage converters are also operated in operating points that have poor efficiency. This can lead to excessive heating of the components of the voltage converter. There is therefore a need for methods that prevent individual voltage transformers from voltage transformers connected in parallel from heating up excessively.
  • the present invention discloses a method for operating voltage converters connected in parallel for at least a first and a second voltage converter connected in parallel on the output side and a device for operating voltage converters connected in parallel for at least one first and a second voltage converter connected in parallel on the output side. Further advantageous embodiments are the subject of the dependent claims.
  • a method for operating voltage converters connected in parallel for at least a first and a second voltage converter connected in parallel on the output side with the following steps: Operating the voltage converters connected in parallel in different operating modes as a function of a determined temperature and a predeterminable first temperature limit value (Tth) and / or as a function of a determined current and a first specifiable current limit value. Operating the voltage converter in a first operating mode when the determined temperature is lower than the predeterminable first temperature value. Operating the voltage converter in a second operating mode when the determined temperature is greater than the predeterminable first temperature value and / or the determined current is smaller than the first predeterminable current limit value.
  • Tth predeterminable first temperature limit value
  • a second operating mode when the determined temperature is greater than the predeterminable first temperature value and / or the determined current is smaller than the first predeterminable current limit value.
  • the operation of the voltage converters in the first operating mode includes the operation, in particular only, of a first of the at least two voltage converters and one switched off state of a second of the at least two voltage converters.
  • the operation of the voltage converters in the second operating mode comprises two, in particular successive, operating phases.
  • a first operating phase includes the common parallel operation of the at least two voltage converters and a second operating phase includes the operation of a selected one of the at least two voltage converters and a switched-off state of at least one of the two voltage converters.
  • an operating mode is a specially marked operating procedure for one or more voltage converters. Depending on a determined temperature and / or a current, an operating mode is selected from various available operating modes for operating a voltage converter. For this purpose, the temperature is determined, in particular continuously, by means of a sensor device or a temperature model.
  • the sensor device or the temperature model is set up to determine the temperature of a cooling circuit, which is in particular thermally coupled to the voltage converter, the temperature of the voltage converter, of a component, in particular a switching element of a voltage converter.
  • the temperature model calculates the temperature from physical data of the system, for example current, voltage through the voltage converter and / or the duration of the operation of the voltage converter.
  • the determined current in particular a predetermined current, for example an output current, is determined for this purpose, in particular continuously, by means of a sensor device or via determined or modeled variables that correlate with the current.
  • the sensor device or the arithmetic model is set up to determine the output current or input current or current through the voltage converter.
  • the current in the system changes or is specified in Dependency of the consumers to be supplied, which are connected to the voltage converters connected in parallel at the common output.
  • the temperature model calculates the temperature from physical data of the system, for example current, voltage through the voltage converter and / or the duration of the operation of the voltage converter.
  • a specifiable temperature limit value is a parameter which is specified for the method as a function of the components used and their specification. It is selected in such a way that, when the method is operated and the temperature limit value is taken into account, permanent operation of the voltage converters and the components contained therein is made possible.
  • a specifiable current limit value is a parameter which is specified for the method as a function of the components used and their specification.
  • the first operating mode is characterized in that a first of the voltage converters connected in parallel is operated and a second is switched off or not operated. If a voltage converter is operated, it emits electrical power via its output connections. An electrical voltage is applied to the output connections and an electrical current flows. For this purpose, a switching element located in the voltage converter is operated in a clocked manner. A switched-off state of a voltage converter or a switched-off or non-operated voltage converter does not emit any electrical power at its output connections. There is no electricity.
  • the phrase “a switched-off state” in this disclosure is intended to be understood as synonymous with “not operating” or “a deactivated state” and not as a transition from “operating” to “not operating”.
  • the second operating mode is characterized in that it comprises two operating phases, in particular one following one another.
  • a first operating phase the voltage converters connected in parallel are operated in parallel, which means that several voltage converters each supply part of the current to be made available at the output.
  • a selected, in particular only a selected, voltage converter is operated and one of the voltage converters is switched off or not operated.
  • a method is provided which varies the operating modes for the operation of voltage converters connected in parallel as a function of the temperature and / or the determined current. Especially with low currents, the efficiency of a voltage converter is unfavorable, which leads to strong waste heat and thus heating of the components of the voltage converter.
  • a method is advantageously provided which provides for parallel operation of the voltage converters before overheating of a voltage converter or its components.
  • the temperature of the warmer voltage converter is advantageously reduced. Due to the interposed parallel operation of at least two voltage converters, there are no current fluctuations on the output side of the voltage converters connected in parallel.
  • the operation of the selected one of the at least two voltage converters includes the operation of that voltage converter which was switched off in a first operating mode that took place last if a transition from the first operating mode to the second operating mode took place immediately beforehand.
  • the operation of the selected one of the at least two voltage converters includes the operation of that voltage converter which was switched off in a second operating mode that occurred last in the second operating phase if an operation in the second operating mode had already taken place immediately before.
  • a voltage converter is selected for operation in the second operating phase that was switched off or not operated in the method immediately before the last parallel operation that took place.
  • a method is advantageously provided which enables alternating operation of voltage converters connected in parallel. Before the components of a voltage converter overheat due to operation at an unfavorable operating point, for example with a low target current specification at the output of the voltage converters connected in parallel, the method creates the possibility of alternately operating individual voltage converters connected in parallel. Uneven loading of the individual voltage transformers is avoided due to the alternating operation.
  • the operating phases are carried out in the second operating mode, in particular continuously and / or, each with a specifiable first and second operating time.
  • the duration of the individual operating phases in the second operating mode can be specified.
  • the sequence of the operating modes and operating phases is particularly continuous. This serves to avoid output current interruptions or output current fluctuations of the voltage converters connected in parallel.
  • the cooling phase of the non-operated voltage converter can advantageously be adapted to the overall design of the voltage converters connected in parallel with the cooling device. Furthermore, by specifying the duration of the parallel operation of the voltage converters, the output current fluctuations of the voltage converters connected in parallel that occur when the operation is changed from a first to a second voltage converter can be reduced.
  • the first operating period of the first operating phase is shorter than the second operating period of the second operating phase.
  • the first operating time is shorter than one second and the second operating time is longer than one second.
  • Typical values for the first operating time are a quarter, a half, and three quarters of a second.
  • Typical values for the second operating time are one, three half and 2 seconds.
  • Parameters are advantageously provided which enable permanent, continuous operation of voltage converters connected in parallel with reduced current fluctuations.
  • the current of the at least one of the two voltage converters to be switched off is regulated to zero amperes.
  • the current of the at least one of the two voltage converters to be switched off is regulated to zero amperes by means of a current regulator at the end of the first operating phase.
  • the second operating phase which comprises a switched-off state or the non-operation of at least one of the two voltage converters, can thus be initiated directly.
  • the current controller is given special controller parameters (P, I, D) in particular, in order to enable the current to be smoothly regulated.
  • the method comprises the following further steps: Operating the voltage converters connected in parallel in different operating modes as a function of a second specifiable current limit value, the second current limit value being greater than the first current limit value. Operating the voltage converter in a third operating mode when the determined current is greater than the second current limit value. Operating the voltage converter in the first or second operating mode when the determined current is less than the second current limit value.
  • an operating mode is selected from various available operating modes for operating a voltage converter.
  • the current is determined as explained above.
  • a second predeterminable current limit value is a parameter which is predefined for the method as a function of the components used and their specification. It is chosen so that when the Method and taking into account the current limit value, a permanent operation of the voltage converter and the components contained therein is made possible.
  • the method comprises the following further steps: Operating the voltage converters connected in parallel in different operating modes as a function of the overall efficiency of the voltage converters connected in parallel. Operating the voltage converter in a third operating mode when the overall efficiency in the third operating mode is greater than in the first operating mode. Operating the voltage converter in the first or second operating mode when the overall efficiency in the third operating mode is lower than in the first operating mode.
  • the overall efficiency of the voltage converters connected in parallel for different operating points of the operation of all voltage converters connected in parallel or a subset of voltage converters connected in parallel or individual voltage converters can be determined by means of measurements on the voltage converters connected in parallel. This data is stored in a map, for example. For the most efficient operation possible, this data can be read in depending on the specification of an operating point and the corresponding overall efficiency can be read out for the different operating modes. If the overall efficiency for operation in a third mode is greater than in the first mode, the voltage converters connected in parallel are operated in the third mode.
  • the third mode is particularly characterized in that at least two voltage converters of the voltage converters connected in parallel are operated together.
  • the voltage converters connected in parallel are operated in the first or second mode.
  • the overall efficiency is higher when a plurality of the at least two voltage converters are operated in parallel.
  • the invention also relates to a computer program which is set up to carry out the methods described so far.
  • the invention also relates to a machine-readable storage medium on which the described computer program is stored.
  • the invention also relates to a device for operating voltage converters connected in parallel for at least one first and one second voltage converter connected in parallel on the output side.
  • the device comprises a control logic which is set up to operate the voltage converters connected in parallel in different operating modes as a function of a determined temperature and a specifiable first temperature limit value and / or as a function of a determined current and a first specifiable current limit value.
  • the voltage converters are operated in a first operating mode when a determined temperature is lower than the predeterminable first temperature value.
  • the voltage converters are operated in a second operating mode when the determined temperature is greater than the predeterminable first temperature value and / or the determined current is less than the first predeterminable current limit value.
  • a device with a control logic which varies the operating modes for the operation of voltage converters connected in parallel as a function of the temperature and the current.
  • a device with a control logic which controls a parallel operation of the voltage converters before overheating of a voltage converter or its components.
  • the temperature of the warmer voltage converter is advantageously reduced.
  • the device comprises the voltage converters.
  • a device consisting of the voltage converters connected in parallel and a control logic is thus advantageously provided, which enables an optimized operation of voltage converters connected in parallel.
  • the voltage converters are designed as DC voltage converters or as inverters. Depending on whether a DC voltage conversion or an inverter is required for the application, the voltage converters are advantageously designed as DC voltage converters or inverters.
  • Figure 1 a schematic representation of a flow chart of a
  • FIG. 2 a schematic representation of a device for operating voltage converters connected in parallel according to an embodiment.
  • FIG. 1 shows a schematic representation of a flow chart of a method 100 for operating voltage converters 210, 220, n connected in parallel.
  • the method starts with step 105.
  • step 110 parameters for the operation of the voltage converters connected in parallel are read in.
  • a decision is then made as a function of a determined temperature Tist and / or a determined current list and a first temperature limit value Tth and / or a first current limit value Ithl in which operating mode 120, 130 the voltage converters are to be operated.
  • the voltage converters 210, 220, n are operated in a first operating mode 120 when the determined temperature Tist is less than the predeterminable first temperature value Tth.
  • the voltage converters 210, 220 are operated in a second operating mode 130 when the determined temperature Tact is greater than the predeterminable first temperature value Tth and / or the determined current is less than the first current limit value Ithl. Operation in the first operating mode 120 includes operating, in particular only, a first of the at least two voltage converters 210, 220 and a switched-off state of a second of the at least two voltage converters 210, 220.
  • Operation in the second operating mode 130 includes two operating phases, one being first operating phase 140 comprises the joint parallel operation of the at least two voltage converters 210, 220 and a second operating phase 150 the operation of a selected one of the at least two voltage converters 210, 220 and a switched-off state of at least one of the two voltage converters 210, 220 two voltage converters 210, 220 comprises the operation of that voltage converter which was switched off in a first operating mode 120 that took place last, if a transition from the first operating mode 120 to the second operating mode 130 took place immediately before, or which took place in a last operating mode Found second operating mode 130 was switched off in the second operating phase 150 if an operation in the second operating mode 130 had already taken place immediately before.
  • the operation of the voltage converters 210, 220 connected in parallel preferably includes the operation of the voltage converters 210, 220 in a third operating mode 135 when the The determined current list is greater than a second current limit value Ith2 and the operation in the first or second operating mode 120, 130 if the determined current list is less than the second current limit value Ith2.
  • the first current limit value Ithl is smaller than the second current limit value Ith2.
  • a total efficiency G is preferably read in in step 110.
  • Operating the voltage converters 210, 220 connected in parallel preferably includes operating the voltage converters 210, 220 in a third operating mode 135 if the overall efficiency G in the third operating mode 135 is greater than in the first operating mode 120 and operating the voltage converters 210, 220 in FIG the first or second operating mode 120, 130 if the overall efficiency G in the third operating mode 135 is lower than in the first operating mode 120.
  • the method branches to step 110, in which the current parameters are again are read in for the operation of the voltage converters connected in parallel and an operating mode 120, 130, 135 is selected again.
  • the two operating phases 140, 150 are executed one after the other before the method branches back to step 110. Operating times D1, D2 are preferred for the operating phases 140,
  • a heated voltage converter can be cooled down and an operated voltage converter can be regulated down while avoiding output current fluctuations of the voltage converters connected in parallel.
  • FIG. 2 shows a schematic representation of a device 200 for operating voltage converters 210, 220, n connected in parallel.
  • the output connections of voltage converters 210, 220, n connected in parallel are connected in parallel.
  • the device comprises a control logic 230, which is set up to convert the voltage converters 210, 220, n connected in parallel in different operating modes 120, 130, 135 as a function of a determined temperature Tist and a predeterminable first temperature limit value Tth and / or a determined current list of the parallel-connected To operate voltage converters 210, 220, n and a predeterminable first current limit value Ithl and / or an overall efficiency G according to the method described.
  • the voltage converters 210, 220, n are preferred as DC-DC converter or inverter formed.
  • the device 200 preferably comprises the voltage converters 210, 220, n.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

La présente invention concerne des procédés (100) et un dispositif (200) pour le fonctionnement de transformateurs de tension (210, 220) connectés en parallèle, les transformateurs de tension (210, 220) fonctionnant dans différents modes de fonctionnement (120, 130) en fonction d'une température déterminée (Tist) afin d'éviter la surchauffe d'un transformateur de tension individuel.
EP20754717.5A 2019-08-30 2020-08-10 Procédé de fonctionnement de transformateurs de tension connectés en parallèle Pending EP4022728A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019213073.9A DE102019213073A1 (de) 2019-08-30 2019-08-30 Verfahren zum Betrieb parallel geschalteter Spannungswandler
PCT/EP2020/072385 WO2021037543A1 (fr) 2019-08-30 2020-08-10 Procédé de fonctionnement de transformateurs de tension connectés en parallèle

Publications (1)

Publication Number Publication Date
EP4022728A1 true EP4022728A1 (fr) 2022-07-06

Family

ID=72050854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20754717.5A Pending EP4022728A1 (fr) 2019-08-30 2020-08-10 Procédé de fonctionnement de transformateurs de tension connectés en parallèle

Country Status (5)

Country Link
US (1) US11909319B2 (fr)
EP (1) EP4022728A1 (fr)
CN (1) CN114258629A (fr)
DE (1) DE102019213073A1 (fr)
WO (1) WO2021037543A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493154A (en) * 1993-04-21 1996-02-20 Astec International, Ltd. Temperature share scheme
US9857854B2 (en) * 2016-02-29 2018-01-02 Dell Products Lp Voltage regulator and method of controlling a voltage regulator comprising a variable inductor
DE102016219740A1 (de) 2016-10-11 2018-04-12 Robert Bosch Gmbh Regelvorrichtung für einen Gleichspannungskonverter, Gleichspannungskonverter und Verfahren zur Regelung eines Gleichspannungskonverters
JP2019068592A (ja) 2017-09-29 2019-04-25 トヨタ自動車株式会社 電力変換装置
US11323032B2 (en) * 2017-12-28 2022-05-03 Shindengen Electric Manufacturing Co., Ltd. Plural power modules conversion device with switch element control
JP6900909B2 (ja) * 2018-01-10 2021-07-07 トヨタ自動車株式会社 多相コンバータシステム
US10284095B1 (en) * 2018-02-19 2019-05-07 Microchip Technology Incorporated Method and apparatus for phase current balancing in multi-phase constant on-time buck converter
CN111669035B (zh) * 2020-06-24 2022-02-15 上海晶丰明源半导体股份有限公司 多相功率处理电路及其控制方法

Also Published As

Publication number Publication date
DE102019213073A1 (de) 2021-03-04
US20220278619A1 (en) 2022-09-01
US11909319B2 (en) 2024-02-20
CN114258629A (zh) 2022-03-29
WO2021037543A1 (fr) 2021-03-04

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