EP4559079A1 - Gleichrichtermodul - Google Patents
GleichrichtermodulInfo
- Publication number
- EP4559079A1 EP4559079A1 EP23748699.8A EP23748699A EP4559079A1 EP 4559079 A1 EP4559079 A1 EP 4559079A1 EP 23748699 A EP23748699 A EP 23748699A EP 4559079 A1 EP4559079 A1 EP 4559079A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rectifier
- voltage
- rectifier module
- mains
- inverter
- 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
Links
Classifications
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- 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
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
- H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of AC power input into DC 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
- H02M7/217—Conversion of AC power input into DC 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
- H02M7/219—Conversion of AC power input into DC 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 in a bridge configuration
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- 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
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- 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
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- 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
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- 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
- H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
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- 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
- H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
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- 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
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
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- 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
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- 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
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- 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
- H02M7/539—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 with automatic control of output wave form or frequency
- H02M7/5395—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 with automatic control of output wave form or frequency by pulse-width modulation
-
- 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
- H02M1/12—Arrangements for reducing harmonics from AC input or output
-
- 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
- H02M3/003—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
- 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
- H02M7/4807—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 having a high frequency intermediate AC stage
Definitions
- the present invention relates to a rectifier module for converting a three-phase mains input voltage into a current and voltage-controlled DC voltage.
- a rectifier module or switching power supply based on a bipolar transistor with an insulated gate electrode can generate a direct voltage for electrocoating in paint shops.
- the internal clock frequency of an IGBT is approx. 20 kHz and in a 19" housing with a height of
- the present invention is based on the object of providing a rectifier module which has reduced network feedback, an increased power factor and minimal power loss.
- the rectifier module is used to convert a three-phase mains input voltage into a current and voltage-controlled DC output voltage.
- the rectifier module preferably comprises the following: a regulated mains rectifier for generating a direct voltage, in particular a constant intermediate circuit voltage, from the three-phase mains input voltage; an inverter for converting the direct voltage into a pulse width modulated alternating voltage; a high-frequency transformer (HF transformer) for transmitting the pulse width modulated alternating voltage; a rectifier for converting the pulse width modulated AC voltage into a DC output voltage; a control device; and a cooling device for providing a cooling medium flow, wherein the regulated mains rectifier is connected on the input side to a mains connection and on the output side to the inverter, the inverter being connected on the input side to the regulated mains rectifier and on the output side to the high-frequency transformer, the high-frequency transformer being connected to the inverter on the input side and to the output side is connected to the rectifier, the rectifier being connected on the input side to the high-frequency transformer and being connectable on the output side to an electrode, in particular an anode.
- the rectifier module has a compact size with the lowest possible weight, that an installation altitude of up to 2500 hm is possible, that the module is no-load and short-circuit proof, that the residual ripple is low and that a wide-range mains voltage can be applied. Furthermore, an output power of 32 kW can be achieved at a maximum voltage of 450 V and a maximum current of 120 A.
- the module is also preferably controlled by both current and voltage with a high level of control accuracy. There is also the option of Underwriters Laboratories certification (UL certification).
- the present invention is based on the basic idea that, in particular to achieve high efficiency of a rectifier module, which is preferably used in the electrocoating of workpieces in a painting system, the technology of the Active Front End (AFE) is used for network rectification.
- AFE Active Front End
- This technology which is also known as “Three-Phase Six-Switch Boost Power Factor Correction"
- Boost Power Factor Correction
- the arrangement of the components of the rectifier module described below and a Effective cooling of selected components ensures that losses and disruptions are reduced.
- connection means both a direct and an indirect electrical connection.
- in the case of an indirect connection it can be provided that further elements are arranged between two interconnected or connectable elements.
- the rectifier module is connected to the source for the three-phase mains input voltage via the mains connection.
- the mains voltage or the mains input voltage is preferably in the range of 380 V to 460 V at a mains frequency of 50 Hz to 60 Hz.
- the mains current is preferably 50 A at 400 V mains voltage.
- the electrode When used in the electrocoating of workpieces, in particular vehicle bodies, the electrode forms the anode and the respective workpiece forms the associated cathode.
- the regulated grid rectifier and the inverter can be designed as a common component or as individual components.
- the regulated mains rectifier preferably converts the mains input voltage, which is a three-phase alternating voltage, into a direct voltage or an intermediate circuit voltage U z .
- the inverter preferably converts the intermediate circuit voltage U z into a pulse width modulated alternating voltage (PWM alternating voltage).
- PWM alternating voltage which was generated from the intermediate circuit voltage U z , is transferred from the primary circuit to the secondary circuit with the corresponding transformation ratio via the HF transformer.
- the HF transformer provides galvanic isolation between the primary circuit, which is present on the input side of the HF transformer, and the secondary circuit, which is consequently present on the output side of the HF transformer.
- the HF transformer electrically isolates the source of the mains input voltage from the electrode.
- the rectifier which is in particular an output rectifier, ensures a rectification of the PWM alternating voltage, in particular by means of a bridge rectification, this output rectification being carried out using Schottky diodes based on silicon carbide (SiC).
- the control device is preferably a central control card or control board with a CANopen interface, such as a VSQ card, and includes a digital signal processor (DSP) or is designed as such.
- DSP digital signal processor
- the digital signal processor is preferably a microprocessor.
- the regulated mains rectifier is an AFE or is designed as an AFE.
- An AFE is basically a circuit that is used to generate a direct voltage from a three-phase alternating voltage.
- variable setting of the current flow direction, the power factor and the intermediate circuit voltage U z is carried out by vector control of the switching transistors.
- the basic principle of this connection is a step-up converter or boost converter (as a combination of the AFE chokes and the downstream transistors), which means that the intermediate circuit voltage U z must always be higher than the maximum peak value for a wide-range input.
- AFE technology makes it possible to keep the internal DC link voltage constant, which in conventional rectifier modules fluctuates depending on the respective mains voltage and its tolerances. This means that the corresponding HF transformer and the network wiring can be dimensioned with fewer reserves, which leads to lower losses in the HF transformer and to a higher packing density and the associated smaller dimensions of the rectifier module.
- the constant intermediate circuit voltage U z is then converted into a pulse width modulated (PWM) alternating voltage via the inverter.
- PWM pulse width modulated
- the cooling device is a fan for providing a cooling air flow and that the fan flows towards the high-frequency transformer and/or the rectifier for air cooling.
- a cooling air flow flows on or around the HF transformer and/or the rectifier, whereby effective cooling is achieved. Cooling one or both components reduces heat-related losses and interference and consequently increases the efficiency of the rectifier module.
- the fan preferably also causes thermal energy, which is generated, for example, on the regulated mains rectifier and/or the inverter and is preferably transferred into the cooling air flow by means of one or more heat sinks, to be conveyed out of the rectifier module by this cooling air flow via the back of the housing,
- the HF transformer and/or the rectifier can be exposed to direct flow for cooling.
- these components are mounted on a heat sink, which essentially receives air flow and promotes the appropriate cooling.
- the HF transformer is shielded at least from the regulated mains rectifier, the inverter and the control device.
- Shielding the HF transformer from the aforementioned elements prevents a reduction in the efficiency of the rectifier module due to electromagnetic interference.
- the line or connection length between the inverter and the input-side or primary-side connection of the HF transformer is as short as possible, which in particular avoids or at least reduces losses and interference.
- the rectifier module comprises an input filter device, which can be connected to the mains connection on the input side and is connected to the regulated mains rectifier on the output side and which is set up in such a way that it transmits current and/or voltage measured values of the three-phase mains input voltage to the control device.
- the input filter device is designed as or comprises an LCL filter, through which, on the one hand, high-frequency interference signals from the switching transistors of the regulated mains rectifier and/or the inverter are filtered so that they do not reach the supply network or reach the input network line.
- the input filter device prevents high-frequency signals from the AC distribution network, ie the supply network, from penetrating the rectifier module as interference.
- the rectifier module comprises an output filter device, which is connected to the rectifier on the input side and can be connected to the electrode on the output side and which is set up in such a way that it transmits current and/or voltage measured values of the output direct voltage to the control device.
- the electrode can be connected via the DC voltage output of the rectifier module, to which the output filter device is connected on the output side and which in particular has four plus lines and one minus line.
- the output filter device can preferably be used to suppress or at least filter or smooth the internal switching frequency of the AFE and/or the inverter.
- a blocking diode or blocking diode is arranged between the output side of the rectifier and the input side of the output filter device in the negative line of the output circuit or the secondary circuit or is connected to them in order to suppress countercurrents in cathodic dip painting systems due to the large number of rectifier modules connected in parallel.
- the output filter device preferably comprises an output measurement card, each with a shunt per positive line of the output circuit, from which the corresponding measured values are tapped. It can be advantageous if the rectifier module has a data interface by means of which data can be exchanged between the control device of the rectifier module and an external network.
- the data interface includes a Profinet/CANopen gateway or is designed as a Profinet/CANopen gateway.
- the data interface includes an Ethernet-IP interface or is designed as such.
- a gateway can be an interface and vice versa.
- Ethernet-IP/CANopen interface can be referred to as an Ethernet-IP interface for short.
- the data interface enables, among other things, external control of the rectifier module and at the same time serves to monitor it, for example to protect it from overloads, whereby overloads can occur if, due to special events, the rectifier module is expected to operate outside the permissible limit values.
- Profinet/CANopen gateway information about the rectifier module can also be made available to the higher-level controller.
- the Profinet/CANopen gateway is in particular responsible for a conversion between the Profinet real-time interface of the data interface and the internal CANopen communication or the corresponding protocol of the rectifier module or its control device.
- the rectifier module is also prepared for use in Industry 4.0. It is also conceivable that the control device controls and/or regulates the regulated grid rectifier and/or the inverter and/or the cooling device, in particular by means of pulse width modulation.
- control device is designed to monitor the temperature at one or more points of the rectifier module, in particular the temperature of the cooling device, the regulated grid rectifier, the inverter and the high-frequency transformer.
- control device and/or the data interface are connected to a direct current supply connection.
- the regulated grid rectifier and/or the inverter comprise one or more metal-oxide-semiconductor field effect transistors (MOSFET) based on SiC.
- MOSFET metal-oxide-semiconductor field effect transistors
- the switching frequency of the regulated mains rectifier and/or the inverter is at least 40 kHz.
- the rectifier module comprises an internal supply unit for generating and providing an internal auxiliary voltage for the control device, which is connected on the input side to the mains connection and on the output side is connected to the control device.
- the internal supply unit On the input side, the internal supply unit is preferably connected to the mains connection via the input filter device. The input filter device accordingly feeds the mains voltage into the internal supply unit.
- the efficiency of the rectifier module is up to 97% and/or in the range from 20% to 100% output power the power factor of the rectifier module is 0.99 to 1.0.
- Fig. 1 is a schematic representation of a rectifier module according to the invention
- Fig. 2 is a schematic top view of the front of the rectifier module according to the invention from Fig. 1;
- Fig. 3 is a schematic circuit diagram of the components of the rectifier module according to the invention from Fig. 1.
- An embodiment of a rectifier module, designated as a whole by 100, shown in FIG. 1 is used to convert a three-phase mains input voltage into a current- and voltage-controlled direct voltage.
- the rectifier module 100 includes a housing 102 in which the other components are accommodated, the housing 102 preferably having a width of 445 mm, a height of 177 mm and a depth of 540.
- the rectifier module 100 preferably weighs a maximum of 27 kg in total.
- the housing 102 is divided into a first subarea 106 and a second subarea 108 by a shield 104.
- a front side 109 of the housing which is shown in more detail in FIG. 2, points downward in FIG. 1.
- the shield 104 preferably comprises at least one heat sink, via which thermal energy can be transferred from one partial area to the other, in particular from the first partial area 106 to the second partial area 108.
- the rectifier module 100 further includes an input filter device 110, an active front-end converter (AFE converter) 111, a control device 114, an internal supply unit 116 and a data interface 118, these components being arranged in the first portion 106 of the housing 102 .
- AFE converter active front-end converter
- the AFE converter 111 in Fig. 1 is shown as a component in which a regulated mains rectifier 112 designed as an AFE and an inverter 113 are combined, whereas the illustration in Fig. 3 shows both components functionally separated.
- the AFE inverter 111 includes one or more metal-oxide-semiconductor field effect transistors (MOSFET) based on silicon carbide (SiC). These SiC MOSFETs are preferably arranged on or installed on the at least one heat sink of the shield 104 so that the thermal energy, which is generated during operation of the rectifier module 100 on the AFE converter 111, is transferred from the first subregion 106 to the second subregion 108 becomes.
- MOSFET metal-oxide-semiconductor field effect transistors
- the data interface 118 is designed as a Profinet/CANopen gateway 120 or includes a Profinet/CANopen gateway 120.
- the control device 114 is designed as a VSQ card 122 or includes a VSQ card 122.
- a high-frequency transformer (HF transformer) 124 In the second portion 108 of the housing 102, a high-frequency transformer (HF transformer) 124, one or more AFE chokes 125, a rectifier 126, an output filter device 128, a blocking diode 130 and an output measurement card 132 are further arranged, the HF transformer 124 can be separated from the remaining components of the second portion 108 by an enclosure 134.
- HF transformer high-frequency transformer
- a cooling device 136 is also arranged on the second portion 108, which is in particular a fan 138, which generates a cooling air flow 140 and provides it within the housing 102 or conveys it into the housing 102.
- the cooling air flow 140 essentially flows around the HF transformer 124 and the rectifier 126 for air cooling or flows towards them.
- the housing 134 does not extend over the entire height of the housing 102, at least on the side that is opposite the front side 109 of the housing 102, so that the cooling air flow can also flow around or against the rectifier 126.
- connection is understood to mean an electrically conductive connection through which an electrical current flows or by means of which a voltage can be applied, a connection comprising one or more conductors or lines.
- the rectifier module 100 is connected to the source for the three-phase mains input voltage via a mains connection 142.
- the power connection 142 which is arranged on the front 109 of the housing 102, is connected to the input filter device 110 via a connection 144, so that the HF components of the input voltage can initially be reduced in order to meet the requirements for permissible interference.
- the input filter device 110 prevents HF signals generated in the rectifier module 100 from reaching the input line and from HF components of the mains input voltage reaching the circuits of the rectifier module 100 as interference.
- the internal supply unit 116 is fed from the input filter device 110 via a connection 146, which in turn supplies the control device 114 with an internal auxiliary voltage via a connection 148.
- the AFE converter 111 is supplied with the filtered mains input voltage from the input filter device 110 via a connection 150.
- the input filter device 110 provides the control device 114 with current measurement values via a connection 152 and voltage measurement values via a connection 154.
- a direct current supply connection 156 which is also arranged on the front side 109 of the housing 102, supplies the control device 114 via a connection 155 and the data interface 118 via a connection 157 with a direct voltage.
- the data interface 118 also has a connection 158, which is also arranged on the front 109 of the housing 102 and via which the data interface 118 can be connected, for example, to a Profinet network for data exchange.
- the AFE converter 111 is connected via a connection 160 to the HF transformer 124, which in turn is connected to the rectifier 126 via a connection 162.
- a blocking diode 130 is arranged or interposed in a negative line 166, which suppresses a negative countercurrent through the rectifier diodes in the event of an externally occurring countervoltage.
- the output filter device 128 is further connected to an output measurement card 132, which has four shunts, via a connection 168 and also via a connection 170 to a DC voltage output 172, which has four plus lines and one negative line and on which one or more electrodes, in particular one or more Anodes are connected.
- the DC voltage output 172 is also arranged on the front 109 of the housing 102.
- the output measurement card 132 provides current measurement values via a connection 174 and voltage values via a connection 176 to the control device or transmits these via the connections 174, 176.
- a cooling device connection 178 is also arranged on the front side 109 of the housing 102, which supplies the cooling device 136 with power via a connection 180.
- Temperature measurements from one or more measuring points in the rectifier module 100 are also transmitted or forwarded to the control device 114 via one or more connections 182.
- the measuring points are preferably located, among other things, on the AFE converter 111, on the HF transformer 124 and on the cooling device 136.
- the control device 114 controls and/or regulates the AFE converter 111 using PWM signals via a control and/or regulating connection 184 and the cooling device 136 via a control and/or regulating connection 186.
- data is exchanged via a CAN bus 188 between the control device 114 and the data interface 118.
- a status LED 190 is arranged on the front side 109 of the housing 102, which is preferably controlled by the control device 114 and visually informs users about the status or the operating state of the rectifier module 100, in particular Different luminous colors enable the different operating states to be distinguished.
- the three-phase mains input voltage is fed into the rectifier module 100 via the mains connection 142, i.e. a three-phase three-phase or alternating current is applied to the mains connection 142.
- the filtered mains input voltage is then actively rectified with a sinusoidal mains current consumption, whereby a constant intermediate circuit voltage is provided.
- the intermediate circuit voltage is then converted in the inverter 113, which is connected on the input side to the regulated mains rectifier 112 and on the output side to the HF transformer 124, into a PWM alternating voltage, which is then in the HF transformer 124, which is connected on the input side to the inverter 113 and on the output side to the Rectifier 126 is connected, according to the selected transmission ratio from the primary circuit, which is on the input side of the HF Transformer 124 is present, is transferred to the secondary circuit, ie the output circuit.
- the HF transformer electrically isolates the source of the mains input voltage from the electrode.
- the transmitted PWM alternating voltage is further rectified in the rectifier 126, which is connected on the input side to the HF transformer 124 and on the output side to the output filter device 128, so that after filtering or smoothing in the output filter device 128, which is connected on the input side to the rectifier 126 and is connected on the output side to the DC voltage output 172, a DC voltage can be tapped at the DC voltage output 172.
- control device 114 can also be supplied via a connection 192 with measured values in relation to the intermediate circuit voltage, which are derived or tapped on the output side of the regulated mains rectifier 112.
- current measurement values of the PWM alternating voltage in the primary circuit can be tapped via a connection 194 on the output side of the inverter 113 or on the input side of the HF transformer 124 and provided to the control device 114.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rectifiers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022118410.2A DE102022118410A1 (de) | 2022-07-22 | 2022-07-22 | Gleichrichtermodul |
| PCT/DE2023/100534 WO2024017439A1 (de) | 2022-07-22 | 2023-07-19 | Gleichrichtermodul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4559079A1 true EP4559079A1 (de) | 2025-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23748699.8A Pending EP4559079A1 (de) | 2022-07-22 | 2023-07-19 | Gleichrichtermodul |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4559079A1 (de) |
| CN (1) | CN119605066A (de) |
| DE (2) | DE102022118410A1 (de) |
| WO (1) | WO2024017439A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10356514A1 (de) * | 2003-12-03 | 2005-07-14 | Siemens Ag | Stromversorgungseinrichtung |
| EP2568589B1 (de) * | 2011-09-08 | 2013-11-13 | ABB Technology AG | Mehrstufiger Wandler mit einem aktiven AC-Wandler und einem resonanten DC-DC-Wandler und Steuerungsverfahren zum Betrieb eines mehrstufigen Wandlers |
| JP5516999B2 (ja) * | 2011-10-21 | 2014-06-11 | 株式会社デンソー | 電源装置 |
| US11258370B2 (en) * | 2018-11-30 | 2022-02-22 | Teco-Westinghouse Motor Company | High frequency medium voltage drive system for high speed machine applications |
| DE102020201562A1 (de) * | 2020-02-07 | 2021-08-12 | Dürr Systems Ag | Stromwandlungseinheit und Beschichtungsanlage |
| CN114982114A (zh) * | 2020-04-29 | 2022-08-30 | 通用电气公司 | 具有增强的功率密度、减小的尺寸、隔离的功率端口的功率电子器件构建块(pebb) |
| CN114389463A (zh) * | 2020-10-20 | 2022-04-22 | 台达电子企业管理(上海)有限公司 | 一种用于向网络设备供电的电源系统 |
| CN113992015B (zh) * | 2021-09-29 | 2024-06-18 | 株洲中车时代电气股份有限公司 | 一种高功率密度的集成式辅助变流器 |
-
2022
- 2022-07-22 DE DE102022118410.2A patent/DE102022118410A1/de not_active Withdrawn
-
2023
- 2023-07-19 CN CN202380055692.7A patent/CN119605066A/zh active Pending
- 2023-07-19 EP EP23748699.8A patent/EP4559079A1/de active Pending
- 2023-07-19 WO PCT/DE2023/100534 patent/WO2024017439A1/de not_active Ceased
- 2023-07-19 DE DE112023003182.7T patent/DE112023003182A5/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024017439A1 (de) | 2024-01-25 |
| DE102022118410A1 (de) | 2024-01-25 |
| CN119605066A (zh) | 2025-03-11 |
| DE112023003182A5 (de) | 2025-04-30 |
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