WO2002049196A2 - Converter with integrated link-circuit capacitors - Google Patents
Converter with integrated link-circuit capacitors Download PDFInfo
- Publication number
- WO2002049196A2 WO2002049196A2 PCT/DE2001/004636 DE0104636W WO0249196A2 WO 2002049196 A2 WO2002049196 A2 WO 2002049196A2 DE 0104636 W DE0104636 W DE 0104636W WO 0249196 A2 WO0249196 A2 WO 0249196A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- converter according
- bridge
- converter
- intermediate circuit
- module
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- 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
- H02M1/34—Snubber circuits
-
- 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
- H02M7/53—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 using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
Definitions
- the invention relates to a converter according to the preamble of the main claim. This is preferably a DC-AC converter.
- the intermediate voltage circuit can also be formed by a direct voltage network, which contains, for example, the on-board electrical system battery of a motor vehicle.
- the voltage intermediate circuit also has an intermediate circuit capacitor, using which pulse currents are generated or the alternating current is taken over. Such pulse currents occur in all clocked converter bridges.
- a Umrichtexmaschine consists of one or more half bridges, which alternately connect the output to either the positive or the negative DC link potential.
- a half bridge has one or more high-side switches for the connection to the positive intermediate circuit potential and one or more low-side switches for the connection to the negative DC link potential.
- a high-side switch and a low-side switch together form a half bridge.
- the connecting lines between the intermediate circuit capacitor and the converter bridge are loaded by the rapid current changes that occur. If the high-side switch of a half-bridge is switched on and the low-side switch is switched off, then the output of a half-bridge is at the positive intermediate circuit potential and the output current is taken from the intermediate circuit. If the half bridge switches, the output is at the negative intermediate circuit potential and the current in the intermediate circuit, which flows from the intermediate circuit capacitor to the converter bridge, must drop to the value zero. The resulting large change in the current dl / dt leads to an overvoltage on the connecting line between the intermediate circuit capacitor and the semiconductor switches of the half-bridge. This overvoltage can assume considerable values to which the semiconductor switches are to be dimensioned.
- the components mentioned are controlled by a control device.
- This specifies the amplitude, the phase and the frequency of the three-phase current to be supplied to the starter of the vehicle.
- the control device specifies the amount of current, the direction of current and the amount of the voltage step-up or step-down to the DC-DC converter.
- the control device specifies to a consumer control device what amount of current it can draw from the short-term energy store and, if appropriate, what voltage difference is to be overcome.
- the starter motor requires energy from the short-term energy storage. To During the starting process, it works as a generator and supplies energy to the intermediate circuit via the converter.
- the DC voltage converter on the electrical system side is designed as a bidirectional converter, in order to be able to transfer electrical energy from the on-board electrical system battery to the DC link for the starting process or its preparation, and to transfer energy from the DC link to the low voltage side during generator operation of the starter motor, in order to transfer consumers there To feed the on-board electrical system and to charge the on-board electrical system battery.
- a converter according to the invention has the
- Line inductances can be kept small.
- two or more capacitors which extend parallel to the complete half bridge, are integrated into the module per half bridge. This reduces the interference radiation from the converter bridge.
- FIG. 1 shows a representation of a half-bridge according to an exemplary embodiment for the invention
- FIG. 2 shows a simplified module representation of the half-bridge according to FIG. 1
- FIG. 3 shows an equivalent circuit diagram of the half-bridge module
- FIG. 4 shows a first exemplary embodiment for a converter
- FIG. 5 shows a second exemplary embodiment for a Converter
- Figure 6 shows a third embodiment of a converter, only the components necessary for understanding the invention are shown in the figures. description
- FIG. 1 shows an illustration of a half bridge according to an exemplary embodiment of the invention.
- the half bridge is realized in the form of a module M arranged in a housing.
- capacitors C H s, C LS , C K ⁇ and C ZK2 are also integrated in this module M.
- the capacitors C H s and C LS are each arranged in parallel with an inverse diode and a switch. They serve to mitigate the negative effects of the current stall behavior of the inverse diodes during the switching processes.
- a current stall means a very rapid change in current, which leads to corresponding overvoltages caused by the parasitic inductances.
- the two other capacitors C ZK ⁇ and C ZK 2 / which are each arranged parallel to the entire half bridge and thus directly on the
- DC link voltage are used as block capacitors for the DC link. At the same time, they are intended to filter out high-frequency current components, which leads to an improvement in electromagnetic compatibility (EMC). Furthermore, these two capacitors C ZK1 and C Z ⁇ 2 also take over the task of a conventional intermediate circuit capacitor in whole or in part.
- capacitors of different capacitance are preferably connected in parallel as block capacitors. Since capacitors of different capacitance have different frequency responses, broadband filtering of the high-frequency current components is possible. Consequently, the capacitors C Hs and C LS shown in FIG. 1 mitigate the overvoltages due to the reverse current stall of the inverse and reverse diodes and the capacitors C Z ⁇ and Cz ⁇ 2 improve the electromagnetic compatibility, the latter capacitors. also take over the task of a conventional intermediate circuit capacitor in whole or in part.
- FIG. 2 shows a simplified schematic module representation of the half-bridge according to FIG. 1.
- the intermediate circuit capacitors C ZK ⁇ and C ZK2 are described by the capacitor C z ⁇ .
- an ohmic resistance R D is shown, which represents the internal resistance or damping resistance of the capacitor.
- the inductance L z ⁇ of the connection connection forms a resonant circuit together with the capacitor C 2 ⁇ .
- the inductance of the connecting line to the intermediate circuit and the permissible overvoltage at the semiconductor switches T1 and T2 are important for the size of the capacitor C z ⁇ required in the module M.
- FIG. 3 shows an equivalent circuit diagram of the
- Half-bridge module This shows that the half-bridge module is a damped series resonant circuit11.
- the voltage U Ven tii at the semiconductor switches is composed of the capacitor voltage U c plus the voltage drop U R at the damping resistor nd R D.
- the voltage is the load current can be assumed to be constant.
- the starting values of the energy storage are therefore:
- the voltage at the semiconductor switches rises from U 2 ⁇ before the switching process to U z ⁇ + R * I L s t after the switching process.
- the current drop after the switching process is:
- the voltage increase after the switching process is:
- the minimum capacitance value C z ⁇ is calculated , min ie follows: In the range of resonant vibrations up to the aperiodic limit case (0 ⁇ D ⁇ 1) the minimum capacitance value C z ⁇ , m i n is calculated as follows:
- the overvoltage in this area is only determined by the capacitor C z and not by the
- Damping resistance R D Low-damped capacitors cause vibrations between the inductors and the capacitors. With low damping, the resonant vibrations of two switching processes can overlap, which results in larger overvoltages. With large damping resistances (D>1; corresponds to the non-resonant case), the overvoltage depends on the ohmic voltage drops. As a favorable damping factor
- FIG. 4 shows a first exemplary embodiment of a converter.
- Several half bridges are provided, each of which is implemented as a module.
- the capacity of the additional external DC link capacitor C z ⁇ , ⁇ tern e art is reduced by the sum of the capacitances of the integrated in the modules capacitors compared to the prior.
- FIG. 5 shows a second exemplary embodiment of a converter.
- Several half bridges are also provided in this case, each of which is implemented as a module.
- the sum of the capacitance values of the capacitors C z ⁇ or C ZK ⁇ and C ZK2 integrated in the half-bridge modules is sufficient for the intermediate circuit , so that an additional, external intermediate circuit capacitor can be dispensed with. This can be the case in particular when the switching times are offset.
- a low-inductance connection via a busbar B is only provided between the half-bridge modules.
- the converter can be connected to the DC link via a conventional connecting line or via a busbar.
- the line inductance can also be used as a filter inductance or can also be used.
- FIG. 6 shows a third exemplary embodiment for a converter. With this, all partial bridges are part of a single module. This solution eliminates the need for a bus bar, since the half-bridges are interconnected with each other in a very low-inductance manner.
- the module can be connected to the DC link by means of a busbar.
- the inductance of this busbar can also be used as the inductance of an output filter.
- the invention divides a conventional intermediate circuit capacitor into several intermediate circuit capacitors of smaller capacitance, some or all of which are an integral part of a half-bridge or bridge module. This leads to a reduction in overvoltages that occur, an improvement in electromagnetic compatibility, high switching speeds with low switching losses in the semiconductor switches and a reduction or elimination of a busbar provided in the prior art.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Rectifiers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002550390A JP2004516781A (en) | 2000-12-13 | 2001-12-08 | Converter with integrated intermediate circuit capacitor |
EP01270943A EP1344304A2 (en) | 2000-12-13 | 2001-12-08 | Converter with integrated link-circuit capacitors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10062075.2 | 2000-12-13 | ||
DE10062075A DE10062075A1 (en) | 2000-12-13 | 2000-12-13 | Converter with integrated DC link capacitors |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002049196A2 true WO2002049196A2 (en) | 2002-06-20 |
WO2002049196A3 WO2002049196A3 (en) | 2002-08-08 |
Family
ID=7666968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/004636 WO2002049196A2 (en) | 2000-12-13 | 2001-12-08 | Converter with integrated link-circuit capacitors |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1344304A2 (en) |
JP (1) | JP2004516781A (en) |
DE (1) | DE10062075A1 (en) |
WO (1) | WO2002049196A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011018434A3 (en) * | 2009-08-13 | 2011-08-25 | Abb Research Ltd | Composite capacitance and use thereof |
US20160218615A1 (en) * | 2013-10-04 | 2016-07-28 | Abb Technology Ag | Semiconductor stack for converter with snubber capacitors |
DE102017110608A1 (en) * | 2017-05-16 | 2018-11-22 | Valeo Siemens Eautomotive Germany Gmbh | inverter |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005009376A1 (en) * | 2005-03-01 | 2006-05-04 | Siemens Ag | Semiconductor module preferably inverter circuit for electric motor operation has damping resistance and power semiconductor switches integrated on the semiconductor module |
WO2013132528A1 (en) * | 2012-03-05 | 2013-09-12 | 富士電機株式会社 | Power conversion device |
DE102012215975A1 (en) | 2012-09-10 | 2014-03-13 | Robert Bosch Gmbh | A method for increasing the life of the DC link capacitor of an inverter having electrical system, electrical system and control unit for an electrical system |
DE102012222068A1 (en) | 2012-12-03 | 2014-06-05 | Robert Bosch Gmbh | Electronic circuit for use with inverter in motor car, has power amplifier circuit whose first input is connected to terminal of resistor and second input is connected to input of amplifier circuit |
DE102012222067A1 (en) | 2012-12-03 | 2014-06-05 | Robert Bosch Gmbh | Electronic circuit for use in inverter used for controlling three-phase motor of e.g. electric vehicle, has first, second and third electronic components designed as resistors, and fourth electronic component designed as capacitor |
DE102014105985A1 (en) | 2014-04-29 | 2015-10-29 | Sma Solar Technology Ag | Converter module for converting electrical power and inverters for a photovoltaic system with at least two converter modules |
DE102014213784A1 (en) * | 2014-07-16 | 2016-01-21 | Siemens Aktiengesellschaft | inverter |
DE202015004662U1 (en) | 2015-04-27 | 2015-08-20 | Electronicon Kondensatoren Gmbh | DC link capacitor module with low-inductance busbar connections |
FR3044180B1 (en) * | 2015-11-23 | 2018-12-07 | IFP Energies Nouvelles | POWER MODULE FOR CONVERTING SYSTEM OF CONTINUOUS ELECTRIC POWER IN THREE-PHASE ELECTRIC POWER |
DE102016224472A1 (en) | 2016-12-08 | 2018-06-14 | Audi Ag | Converter device for a motor vehicle and motor vehicle |
DE102018217763A1 (en) * | 2018-10-17 | 2020-04-23 | Mahle International Gmbh | Inverter device with half-bridge module |
DE102020208096A1 (en) * | 2020-06-30 | 2021-12-30 | Robert Bosch Gesellschaft mit beschränkter Haftung | Device and method for discharging an intermediate circuit capacitor and voltage converter arrangement |
DE102020124594B4 (en) | 2020-09-22 | 2022-07-28 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Pulse-controlled inverter for operating an electrical machine in a motor vehicle |
DE102021105114A1 (en) | 2021-03-03 | 2022-09-08 | Airbus Defence and Space GmbH | Bridge circuit, power module and drive system provided therewith |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0379346A2 (en) | 1989-01-17 | 1990-07-25 | Fuji Electric Co. Ltd. | Power conversion unit and module for its construction |
EP0743744A2 (en) | 1995-05-19 | 1996-11-20 | Thyssen Aufzüge Gmbh | Current converter |
US5623399A (en) | 1994-03-04 | 1997-04-22 | Nippondenso Co., Ltd. | Inverter apparatus having capacitors mounted proximal to associated switching circuits |
US6028779A (en) | 1997-11-25 | 2000-02-22 | Hitachi, Ltd. | Power inverter device |
-
2000
- 2000-12-13 DE DE10062075A patent/DE10062075A1/en not_active Withdrawn
-
2001
- 2001-12-08 WO PCT/DE2001/004636 patent/WO2002049196A2/en active Application Filing
- 2001-12-08 EP EP01270943A patent/EP1344304A2/en not_active Ceased
- 2001-12-08 JP JP2002550390A patent/JP2004516781A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0379346A2 (en) | 1989-01-17 | 1990-07-25 | Fuji Electric Co. Ltd. | Power conversion unit and module for its construction |
US5623399A (en) | 1994-03-04 | 1997-04-22 | Nippondenso Co., Ltd. | Inverter apparatus having capacitors mounted proximal to associated switching circuits |
EP0743744A2 (en) | 1995-05-19 | 1996-11-20 | Thyssen Aufzüge Gmbh | Current converter |
US6028779A (en) | 1997-11-25 | 2000-02-22 | Hitachi, Ltd. | Power inverter device |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011018434A3 (en) * | 2009-08-13 | 2011-08-25 | Abb Research Ltd | Composite capacitance and use thereof |
US20160218615A1 (en) * | 2013-10-04 | 2016-07-28 | Abb Technology Ag | Semiconductor stack for converter with snubber capacitors |
US10164519B2 (en) * | 2013-10-04 | 2018-12-25 | Abb Schweiz Ag | Semiconductor stack for converter with snubber capacitors |
DE102017110608A1 (en) * | 2017-05-16 | 2018-11-22 | Valeo Siemens Eautomotive Germany Gmbh | inverter |
US11018572B2 (en) | 2017-05-16 | 2021-05-25 | Valeo Siemens Eautomotive Germany Gmbh | Inverter with intermediate circuit capacitor cascade and DC-side common-mode and differential-mode filters |
Also Published As
Publication number | Publication date |
---|---|
JP2004516781A (en) | 2004-06-03 |
EP1344304A2 (en) | 2003-09-17 |
WO2002049196A3 (en) | 2002-08-08 |
DE10062075A1 (en) | 2002-06-27 |
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