EP2812988A2 - Alimentation électrique - Google Patents

Alimentation électrique

Info

Publication number
EP2812988A2
EP2812988A2 EP13700686.2A EP13700686A EP2812988A2 EP 2812988 A2 EP2812988 A2 EP 2812988A2 EP 13700686 A EP13700686 A EP 13700686A EP 2812988 A2 EP2812988 A2 EP 2812988A2
Authority
EP
European Patent Office
Prior art keywords
power supply
output
switching regulator
supply according
voltage
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
EP13700686.2A
Other languages
German (de)
English (en)
Inventor
Christian Augesky
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
Priority to EP13700686.2A priority Critical patent/EP2812988A2/fr
Publication of EP2812988A2 publication Critical patent/EP2812988A2/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
    • 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
    • H02M3/325—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 using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—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 using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33561—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 using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having more than one ouput with independent control
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G05F1/577—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices for plural loads
    • 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
    • H02M3/325—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 using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—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 using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—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 using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33523—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 using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
    • 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
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade
    • 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
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/008—Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
    • 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
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • 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 invention relates to a power supply with a DC-DC converter and a switching converter.
  • Upshift controller At this DC link voltage is a low-loss DC-DC converter with a fixed
  • the first stage regulates the intermediate circuit voltage in such a way that the output side is at the desired output voltage.
  • Such fuses are particularly useful when the power supply supplies several load branches. A fault in a load branch then possibly leads to the switching off of this branch, without the other load branches also having to be switched off.
  • the invention is based, for a
  • an intermediate circuit is provided with an intermediate circuit voltage, wherein the intermediate circuit via the DC-DC converter to a supply voltage can be connected and wherein at the intermediate circuit, at least one output switching regulator
  • Output switch regulator removed energy.
  • the regulation of the output voltage is taken over by the output switching controller based on the current DC link voltage level.
  • the controller is a measured value of the instantaneous DC link voltage supplied to limit the DC link voltage to a predetermined lower value and to a predetermined upper value.
  • the control of the DC-DC converter is then carried out in such a way that the DC link voltage always in one area
  • the output switching regulator comprises a current control, which outputs an output current to a adjustable maximum value limited.
  • Output switching regulator is supplied to a shutdown signal, which after exceeding a predetermined
  • the output switching regulator is connected to a timer, which outputs the switch-off signal when a predetermined output current limit value is exceeded for a predetermined period of time.
  • the timer starts to run as soon as the output current
  • Another embodiment provides that a temperature sensor is provided for detecting a critical temperature and that an output of the shutdown signal occurs when a predetermined output current limit is exceeded and when the critical temperature reaches a limit.
  • a detected temperature of a critical component and the output current are evaluated in this way. As soon as the output current rises above the output current limit, it depends on the temperature of the critical component, whether a shutdown of
  • the intermediate circuit voltage is designed as a low voltage.
  • the present topology also allows an almost all of the components that can be safely connected to the DC link or disconnected from it.
  • various components can be safely connected to the DC link or disconnected from it.
  • the low voltage allows a wide selection of low-cost components for the realization of the output switching regulator.
  • power components for example, common electronic components from the consumer electronics, telecom or automotive sector can be used.
  • the present topology also allows an almost all of the components that can be safely connected to the DC link or disconnected from it.
  • the DC-DC converter For high overall efficiency, it is beneficial to form the DC-DC converter as a resonant converter. Such a converter has particularly low switching losses.
  • the DC-DC converter When connected to a public power grid, it is advantageous if the DC-DC converter is preceded by a so-called power factor correction circuit (PFC circuit) for connection to a supply network. In this way disturbing harmonics in the supply network are avoided,
  • PFC circuit power factor correction circuit
  • low-cost low-voltage components means that even with multiple output switching controllers, the total cost of the device is no higher than with conventional device solutions.
  • a variant provides that the at least two
  • the advantage is used that the output voltages of the individual output switching regulators are independently adjustable.
  • Each output switching regulator has its own output voltage regulation with different nominal output voltages. This also line losses, which occur between the power supply and a load, can be compensated in a simple manner.
  • the common control unit comprises an interface for communication with a bus system in order to transmit reporting data and / or to receive control data. This increases flexibility when using the power supply.
  • control unit is supplied as a parameter, a current load of the DC-DC converter and the Control unit controls the output switching regulators depending on this parameter.
  • the DC-DC converter reaches its load limit, the transmitted power of the output switching regulator is reduced by means of a control unit.
  • Output switch a prioritization is provided.
  • the output switching regulators are first reset or switched off, at the outputs of which uncritical loads are connected. Such loads, for example, for the availability of a
  • Base unit comprising a housing, wherein the housing
  • Base device can be connected. This measure also increases the possibilities when using the power supply.
  • Control unit comprises, wherein on the housing of the base unit an interface is provided, by means of which a control unit of the expansion module with the control unit of the base module is connectable.
  • the controller in the base unit acts as a master, for example, to specify setpoints. Communication with external signaling and control devices is also carried out by means of this master control.
  • the control unit is the actual one
  • Output voltage control provided.
  • a particularly low-loss overall concept provides that the respective output switching regulator is designed as a step-down regulator.
  • An inventive method provides that a
  • Control for controlling the DC-DC converter is given an upper and a lower value for the DC link voltage and that a control for controlling the
  • the output switching regulator is given an output current limit value and if the output current limit value is greater for an output current value
  • the output switching controller is given an overcurrent limit, which a
  • the output current is limited to this overcurrent limit until a critical temperature within the power supply reaches a limit or until a predetermined period of time has expired.
  • some fuses require a tripping current that is a multiple of the rated current (eg, three times the rated current). Allowing such an overcurrent for a short period of time (10-25 ms), it is possible to trigger such fuses without damaging components of the power supply. Furthermore, it makes sense if the output switching regulator in any case after a certain period of time
  • Limiting operation is switched off. The output current is then limited to an output current limit that would be too high for continuous operation. For the given
  • Time period is such a limiting operation
  • a conventional power supply includes a
  • Downward switching regulator 1 which is connected, for example, to a three-phase supply network LI, L2, L3 (FIG. 1).
  • an intermediate circuit 3 At the output of the step-down controller 1, an intermediate circuit 3 is provided with an intermediate circuit capacitor.
  • a DC-DC converter 2 subsequently converts an intermediate circuit voltage into an output voltage. The regulation of
  • Output voltage is carried out by means of step-down regulator 1, because the DC-DC converter 2 has a fixed transmission ratio.
  • the DC link voltage is thus set to a certain value, which of the desired
  • an intermediate circuit 3 is provided without a defined intermediate circuit voltage (FIG. 2).
  • a DC link capacitor is a voltage, which is supplied from the input side and the
  • the DC-DC converter 2 is formed, for example, as an LLC resonant converter.
  • a controller of the DC-DC converter 2 is an upper and a lower limit value for the
  • Voltage control of the DC link 3 then intervenes as soon as the DC link voltage reaches a limiting value.
  • Each output switching regulator is conveniently as
  • Downward switching controller formed. Downward switching regulators have a high degree of efficiency, in particular, when the level differences between the input and output voltages deviate only slightly, for example only by a factor of two. At a typical industrial voltage output voltage of 24 volts, the DC link voltage moves
  • the topology allows the independent setting of the
  • the extracted energy of the supplied loads is permanently lower than the total available power of the power supply.
  • two outputs are different Connected consumers who are never active at the same time.
  • the energy that can be transmitted by the DC-DC converter 2 is then usable by means of an expansion module B, as shown in FIG. 3.
  • a base unit A comprises the DC-DC converter 2 which, for example, via a PFC circuit 5 to a single-phase
  • Mains supply Net is connected.
  • the DC-DC converter 2 is connected to four output switching regulators 11, 12, 13, In of the base unit A. The are controlled
  • Control unit SA which is set up as a master.
  • this control unit SA is via a suitable
  • Example is provided a connection to a Profinet.
  • Each output switching regulator 11, 12, 13, In supplies at its output a regulated output voltage Outl, Out2, Out3, Outn.
  • the intermediate circuit 3 and the control unit SA have contacts to which the expansion module B is connected.
  • the expansion module B comprises four further output switching regulators 14, 15, 16, Im, which are connected to a common control SB. At each output switching regulator 14, 15, 16, Im, there is a regulated output voltage Out4, Out5, Out 6, Outm.
  • the control unit SB of the expansion module B is set up as a slave and communicates with the control unit SA of the base unit A.
  • the master control unit SA in the base unit A assumes the load management. For example, shutdown scenarios are provided when the sum of the output switching regulators 11, 12, 13, In, 14, 15, 16, Im
  • the communication between the control unit SA of the base unit A and the control unit SB of an expansion module B can be dispensed with.
  • a variant encompassed by the present invention provides that the intermediate circuit 3 is connected to a further supply.
  • the DC link 3 is connected directly to a switchable power source or it is another DC-DC converter arranged for connection to a further supply source, for example in its own connectable module. The connection to a

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Dc-Dc Converters (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

L'invention concerne une alimentation électrique comprenant un convertisseur continu-continu (2) et un convertisseur à découpage (1), un circuit intermédiaire (3) disposant d'une tension de circuit intermédiaire, le circuit intermédiaire (3) étant raccordé à une tension d'alimentation par l'intermédiaire d'un convertisseur continu-continu (2) et au moins un régulateur à découpage de sortie (11, 12, 3, 1n, 14, 15, 16, 1m) étant raccordé au circuit intermédiaire (3), ledit régulateur à découpage délivrant, côté sortie, une tension de sortie régulée (Out1, Out2, Out3, Outn, Out4, Out5, Out6, Outm). La tension de circuit intermédiaire n'est pas soumise à une régulation. En revanche, la tension de circuit intermédiaire est obtenue à partir de l'énergie cédée à l'aide du convertisseur continu-continu (2) et de l'énergie prélevée à l'aide du régulateur à découpage de sortie (11, 12, 13, 1n, 14, 15, 16, 1m).
EP13700686.2A 2012-02-06 2013-01-14 Alimentation électrique Ceased EP2812988A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13700686.2A EP2812988A2 (fr) 2012-02-06 2013-01-14 Alimentation électrique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20120153980 EP2624428A1 (fr) 2012-02-06 2012-02-06 Alimentation électrique C.C. modulaire avec des sorties indépendantes
EP13700686.2A EP2812988A2 (fr) 2012-02-06 2013-01-14 Alimentation électrique
PCT/EP2013/050573 WO2013117385A2 (fr) 2012-02-06 2013-01-14 Alimentation électrique

Publications (1)

Publication Number Publication Date
EP2812988A2 true EP2812988A2 (fr) 2014-12-17

Family

ID=47594701

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20120153980 Withdrawn EP2624428A1 (fr) 2012-02-06 2012-02-06 Alimentation électrique C.C. modulaire avec des sorties indépendantes
EP13700686.2A Ceased EP2812988A2 (fr) 2012-02-06 2013-01-14 Alimentation électrique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20120153980 Withdrawn EP2624428A1 (fr) 2012-02-06 2012-02-06 Alimentation électrique C.C. modulaire avec des sorties indépendantes

Country Status (5)

Country Link
US (1) US11342851B2 (fr)
EP (2) EP2624428A1 (fr)
CN (1) CN104081643B (fr)
RU (1) RU2014132425A (fr)
WO (1) WO2013117385A2 (fr)

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Also Published As

Publication number Publication date
CN104081643B (zh) 2017-04-26
US11342851B2 (en) 2022-05-24
EP2624428A1 (fr) 2013-08-07
WO2013117385A3 (fr) 2013-10-03
WO2013117385A2 (fr) 2013-08-15
CN104081643A (zh) 2014-10-01
US20150021996A1 (en) 2015-01-22
RU2014132425A (ru) 2016-04-10

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