WO2022140873A1 - Convertidor de potencia parcial dc-dc de topología controlable - Google Patents
Convertidor de potencia parcial dc-dc de topología controlable Download PDFInfo
- Publication number
- WO2022140873A1 WO2022140873A1 PCT/CL2021/050126 CL2021050126W WO2022140873A1 WO 2022140873 A1 WO2022140873 A1 WO 2022140873A1 CL 2021050126 W CL2021050126 W CL 2021050126W WO 2022140873 A1 WO2022140873 A1 WO 2022140873A1
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- Prior art keywords
- converter
- partial power
- input
- switch
- output
- Prior art date
Links
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 230000005669 field effect Effects 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000010650 Hyssopus officinalis Nutrition 0.000 description 1
- 240000001812 Hyssopus officinalis Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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
- 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
- H02M1/0074—Plural converter units whose inputs are connected in series
-
- 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
- H02M1/0077—Plural converter units whose outputs are connected in series
-
- 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
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/0093—Converters characterised by their input or output configuration wherein the output is created by adding a regulated voltage to or subtracting it from an unregulated input
-
- 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
-
- 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
-
- 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
- H02M3/33569—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 several active switching elements
- H02M3/33573—Full-bridge at primary side of an isolation transformer
-
- 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
- H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
-
- 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
- H02M3/33569—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 several active switching elements
- H02M3/33576—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 several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33584—Bidirectional converters
Definitions
- the present invention is related to the field of generation, conversion or distribution of electrical energy; more specifically with the field of converting a DC input to a DC output and in particular provides a topology controllable DC-DC partial power converter.
- partial power converters have recently gained relevance.
- partial power converters are known to have intrinsic advantages, such as reduced power losses, system size and cost.
- the underlying principle is that the power is divided between a direct power link between input and output, and a portion that is processed by a DC-DC converter. This is achieved through the connection between one of the inputs of the DC-DC converter and one of its outputs.
- partial power DC-DC converters One of the advantages of partial power DC-DC converters is that the relationship between input and output voltage depends only on the connection topology, but not on the type of DC-DC converter used.
- Applications of DC-DC partial power converters to photovoltaic generation of electrical energy and to electromobility are known in the state of the art.
- US 9,960,687 describes a type I DC-DC partial power converter using a galvanically isolated bidirectional DC-DC converter.
- the inventors of the present invention have found, however, that in some applications it is preferable to have a partial power DC-DC converter whose topology is controllable between a type I and a type II.
- a partial power DC-DC converter with both characteristics is not described in the state of the art. Consequently, a DC-DC partial power converter is required whose topology is controllable between type I and type II.
- the present invention provides a partial power DC-DC converter with controllable topology, characterized in that it comprises: a DC-DC converter with galvanic isolation that has a positive input, a negative input, a positive output and a negative output; a first DC voltage input electrically connected to said positive input of said DC-DC converter; an input reference; a first DC voltage output electrically connected to said positive output of said DC-DC converter; and an output reference electrically connected to said input reference; wherein said partial power DC-DC converter further comprises: a first switch arranged to selectively connect said positive input to said negative output of said DC-DC converter; a second switch arranged to selectively connect said negative input of said DC-DC converter to said input reference; a third switch arranged to selectively connect said negative output of said DC-DC converter to said output reference; and a fourth switch arranged to selectively connect said positive output to said negative input of said DC-DC converter.
- the partial power converter is characterized in that said first switch, said second switch, said third switch and said fourth switch are unidirectional switches.
- the partial power converter of claim is characterized in that each of said unidirectional switches is formed by a field effect transistor in anti-parallel with a rectifier diode.
- the partial power converter is characterized in that said first switch, said second switch, said third switch and said fourth switch are bidirectional switches.
- the partial power converter is characterized in that said DC-DC converter is selected from the group consisting of forward converters, push-pull converters, H-bridge converters and flyback converters, or any other isolated DC-DC topology.
- the partial power converter is characterized in that said DC-DC converter comprises a transformer having a primary and a secondary, an H-bridge connected to the primary of said transformer and a rectifier bridge connected to the secondary of said transformer.
- said transformer has a midpoint secondary.
- Fig. 1 illustrates a prior art type I partial power converter.
- Fig. 2 illustrates a prior art type II partial power converter.
- Fig. 3 schematically illustrates an embodiment of the partial power converter with controllable topology that is the object of the present invention.
- Fig. 4 illustrates an application of the partial power converter with controllable topology that is the object of the present invention in a photovoltaic system for the generation of electrical energy.
- Fig. 5 illustrates an application of the controllable topology partial power converter that is the object of the present invention in an electrochemical generation system of electrical energy.
- Fig. 6 illustrates an embodiment of the partial power converter with controllable topology that is the object of the present invention.
- Fig. 7 illustrates the interconnection of a plurality of partial power DC-DC converters in accordance with the present invention in a series-in, series-out configuration.
- Fig. 8 illustrates the interconnection of a plurality of partial power DC-DC converters in accordance with the present invention in a series-in, parallel-out configuration.
- Fig. 9 illustrates the interconnection of a plurality of partial power DC-DC converters in accordance with the present invention in a parallel input, series output configuration.
- Fig. 10 illustrates the interconnection of a plurality of partial power DC-DC converters in accordance with the present invention in a parallel input, parallel output configuration.
- a controllable topology DC-DC partial power converter (1) which essentially comprises: a DC-DC converter (2 ) that has a positive input (3), a negative input (4), a positive output (5) and a negative output (6); a first DC voltage input (7) electrically connected to said positive input (3) of said DC-DC converter (2); an input reference (8); a first DC voltage output (9) electrically connected to said positive output (5) of said DC-DC converter (2); and an output reference (10) electrically connected to said input reference (8).
- Said partial power DC-DC converter (1) further comprises: a first switch (11) arranged to selectively connect said positive input (3) with said negative output (6) of said DC-DC converter (2); a second switch (12) arranged to selectively connect said negative input (4) of said DC-DC converter (2) with said input reference (8); a third switch (13) arranged to selectively connect said negative output (6) of said DC-DC converter (2) with said output reference (10); and a fourth switch (14) arranged to selectively connect said positive output (5) with said negative input (4) of said DC-DC converter (2).
- partial power DC-DC converter (1 ) the controllable topology partial power DC-DC converter (1) that is the object of the present invention will be referred to as partial power DC-DC converter (1 ).
- a DC-DC converter will be understood as a set of electrical and electronic components arranged in such a way that, in response to a direct current (DC) input signal, it generates a DC output signal.
- DC direct current
- the relationship between the input voltage and the output voltage of a DC-DC converter is controlled by the ratio between the opening time and the closing time of one or more switches that are part of said DC-DC converter.
- the DC-DC converter (2) that forms part of the DC-DC partial power converter (1) that is the object of the present invention has two inputs that, in the context of the present invention and without this limiting the scope of the same, will be called as positive input (3) and negative input (4).
- the DC-DC converter (2) has two outputs that, in the context of the present invention and without limiting its scope, will be called positive output (5) and negative output (6).
- the DC-DC converter (2) can be any type of DC-DC converter (2) that has galvanic isolation, without this limiting the scope of the present invention.
- said DC-DC converter (2) can be a converter with galvanic isolation that can be selected, for example and without this limiting the scope of the present invention, from the group consisting of forward converters, push-pull converters, H-bridge converters, flyback converters, half-bridge converters and Cuk converters.
- said DC-DC converter (2) can be unidirectional or bidirectional without this limiting the scope of the present invention. The unidirectional or bidirectional nature will depend, for example and without this limiting the scope of the present invention, on the specific application given to the DC-DC partial power converter (1) that is the object of the present invention.
- said DC-DC partial power converter (1) that is the object of the present invention when used to connect a photovoltaic solar module to a DC bus, said DC converter -DC (2) can be unidirectional.
- said converter DC-DC (2) when used to connect a battery with an inverter in an electric vehicle, said converter DC-DC (2) can be a bidirectional converter.
- said DC-DC converter (2) may comprise a transformer (21) that has a primary and a secondary, an H bridge (22) connected to the primary of said transformer (21) and a rectifier bridge (23) connected to the secondary of said transformer (21).
- a transformer (21) that has a primary and a secondary
- an H bridge (22) connected to the primary of said transformer (21)
- a rectifier bridge (23) connected to the secondary of said transformer (21).
- the relationship between the number of turns of the primary and secondary of said transformer (21) does not limit the scope of the present invention.
- said transformer (21) may have a midpoint secondary.
- said rectifier bridge (23) can be replaced by two rectifier diodes, each one connected to one end of said secondary.
- the DC-DC partial power converter (1) that is the object of the present invention further comprises a first DC voltage input (7) electrically connected to the positive input (3) of the DC-DC converter (2); and a first DC voltage output (9) electrically connected to the positive output (5) of said DC-DC converter (2).
- the DC-DC partial power converter (1) that is the object of the present invention comprises an input reference (8) and an output reference (10) electrically connected to said input reference (8).
- the DC-DC partial power converter (1) that is the object of the present invention it allows the connection between two direct current devices, which are connected, respectively, to said first DC voltage input (7) and to said input reference (8); and to said first DC voltage output (9) and to said output reference (10).
- the partial power DC-DC converter As previously mentioned, the partial power DC-DC converter
- a first switch (11) is arranged to selectively connect the positive input (3) with the negative output (6) of the DC-DC converter (2).
- a second switch (12) is arranged to selectively connect said negative input (4) of said DC-DC converter (2) with the input reference (8).
- a third switch (13) is arranged to selectively connect said negative output (6) of said DC-DC converter (2) with the output reference (10).
- a fourth switch (14) is selectively connected to said positive output (5) with said negative input (4) of said DC-DC converter
- the term selective connection is to be understood as a connection that is controlled by the switching state of a switch.
- an electrical connection is provided between the positive input (3) and the negative output (6) of the DC-DC converter (2).
- the electrical connection between the positive input (3) and the negative output (6) of said DC-DC converter (2) is interrupted.
- the electrical connection between the negative input (4) of said DC-DC converter (2) and the input reference (8) will be controlled by the switching state of the second switch (12); the electrical connection between the negative output (6) of said DC-DC converter (2) and the output reference (10) will be controlled by the switching state of the third switch (13); and the electrical connection between the output positive (5) and the negative input (4) of said DC-DC converter (2) will be controlled by the switching state of the fourth switch (14).
- first switch (1 1) of said second switch (12), of said third switch (13) and of said fourth switch (14) does not limit the scope of the present invention.
- Said first switch (1 1), second switch (12), third switch (13) and fourth switch (14) may or may not be implemented in the same way without limiting the scope of the present invention.
- said first switch (11), said second switch (12), said third switch (13) and said fourth switch (14) may be unidirectional switches.
- Said configuration is obtained, for example and without limiting the scope of the present invention, by arranging a transistor in parallel with a rectifier diode.
- Said transistor may be a bipolar transistor or a field effect transistor without this limiting the scope of the present invention.
- said transistor is a field effect transistor and said rectifier diode is connected anti parallel to the source and drain of said field effect transistor.
- said first switch (1 1), second switch (12), third switch (13) and fourth switch (14) can be bidirectional switches. Said configuration can be obtained, for example and without this limiting the scope of the present invention, by arranging two unidirectional switches in parallel with each other, where said unidirectional switches allow the flow of current in opposite directions to each other. Furthermore, in this preferred embodiment, said two unidirectional switches connected in parallel must be controlled in such a way that their switching state is the same at all instants of time.
- the switching state of said first switch (1 1), second switch (12), third switch (13) and fourth switch (14) allow to control the topology of the DC-DC partial power converter that is object of the present invention between a type I topology and a type II topology.
- the DC-DC partial power converter (1) that is the object of the present invention has a third mode of operation that will be called, without this limiting the scope of the present invention, as bypass.
- the direct current device that is connected to the first voltage input (7) and to the first reference (8) is directly connected to the direct current device that is connected to the first voltage output (9) and the second reference (10), regardless of the operation of the DC-DC converter (2).
- said first switch (11) must be kept closed, while said second switch (12) is kept open. , said third switch (13) and said fourth switch (14).
- said plurality of DC-DC partial power converters (1 a, 1 b, 1 c) can be connected in serial configuration at the input and series at the output (ISOS, for its acronym in English Input Series, Output Series).
- ISOS for its acronym in English Input Series, Output Series
- the positive DC terminal of the first DC device is connected to the first DC voltage input 7a of the first DC-DC partial power converter 1a of the plurality.
- the negative DC terminal of the first direct current device is connected to the input reference (8c) of the last DC-DC partial power converter (1 c).
- the positive DC terminal of the second direct current device is connected to the first DC voltage output (9a) of the first DC-DC partial power converter (1 a) and the negative DC terminal of the second direct current device it is connected to the output reference (10c) of the last DC-DC partial power converter (1 c).
- the input reference (8a) of the first DC-DC partial power converter (1 a) is connected to the first voltage input (7b) of the second DC-DC partial power converter (1 b); the input reference (8b) of the second DC-DC partial power converter (1 b) to the first voltage input (7c) of the third DC-DC partial power converter (1 c) and so on until all the inputs are connected of the plurality of partial power DC-DC converters (1 a, 1 b, 1 c).
- the output reference 10a of the first DC-DC partial power converter 1a is connected to the first voltage output 9b of the second DC-DC partial power converter 1b; the output reference (8b) of the second DC-DC partial power converter (1 b) to the first voltage output (9c) of the third DC-DC partial power converter (1 c) and so on until all the outputs are connected of the plurality of partial power DC-DC converters (1 a, 1 b, 1 c).
- said plurality of DC-DC partial power converters (1 a, 1 b, 1 c) can be connected in serial configuration at the input and parallel at the output (ISOP, for its acronym in English Input Series, Output parallel).
- ISOP for its acronym in English Input Series, Output parallel
- the positive DC terminal of the first DC device is connected to the first DC voltage input 7a of the first DC-DC partial power converter 1a of the plurality.
- the negative DC terminal of the first direct current device is connected to the input reference (8c) of the last DC-DC partial power converter (1 c).
- the positive DC terminal of the second direct current device is connected to each of the first DC voltage outputs (9a, 9b, 9c) of the DC-DC partial power converters (1 a, 1 b, 1 c) that are part of said plurality and the negative DC terminal of the second direct current device is connected to each of the output references (10a, 10b, 10c) of the DC-DC partial power converters (1 a, 1 b, 1 c) that form part of said plurality.
- the input reference (8a) of the first DC-DC partial power converter (1 a) is connected to the first voltage input (7b) of the second DC-DC partial power converter (1 b); the input reference (8b) of the second DC-DC partial power converter (1 b) to the first voltage input (7c) of the third DC-DC partial power converter (1 c) and so on until all the inputs are connected of the plurality of partial power DC-DC converters (1 a, 1 b, 1 c).
- said plurality of DC-DC partial power converters (1 a, 1 b, 1 c) can be connected in Parallel Input and Serial Output (IPOS) configuration.
- IPOS Parallel Input and Serial Output
- the positive DC terminal of the first DC device is connected to each of the first DC voltage inputs (7a, 7b, 7c) of the partial power DC-DC converters (1a, 1b, 1 c) of plurality.
- the negative DC terminal of the first direct current device is connected to each of the input references (8a, 8b, 8c) of the DC-DC partial power converters (1 a, 1 b, 1 c) of said plurality.
- the positive DC terminal of the second direct current device is connected to the first DC voltage output (9a) of the first DC-DC partial power converter (1 a) and the negative DC terminal of the second direct current device it is connected to the output reference (10c) of the last DC-DC partial power converter (1 c).
- the output reference (10a) of the first DC-DC partial power converter (1a) is connected to the first voltage output (9b) of the second partial power converter.
- said plurality of DC-DC partial power converters (1 a, 1 b, 1 c) can be connected in input parallel, output parallel (I POP) configuration.
- I POP input parallel, output parallel
- the positive DC terminal of the first DC device is connected to each of the first DC voltage inputs (7a, 7b, 7c) of the partial power DC-DC converters (1a, 1b, 1 c) of plurality.
- the negative DC terminal of the first direct current device is connected to each of the input references (8a, 8b, 8c) of the DC-DC partial power converters (1 a, 1 b, 1 c) .
- the positive DC terminal of the second DC device is connected to each of the first DC voltage outputs (9a, 9b, 9c) of the DC-DC partial power converters (1a, 1b, 1 c) of said plurality and the negative DC terminal of the second direct current device is connected to each of the output references (10a, 10b, 10c) of the partial power DC-DC converters (1 a, 1 b, 1 c) of said plurality.
- Example 1 Use of the DC-DC partial power converter in photovoltaic solar modules
- the DC-DC partial power converter that is the object of the present invention can be used to connect a photovoltaic solar module (15) with a direct voltage line or bus (16).
- the positive (151) and negative (152) terminals of said photovoltaic solar module are connected to the first voltage input (7) and the input reference (8), respectively, of the DC-DC partial power converter ( 1 ).
- the positive (161) and negative (162) terminals of the DC voltage bus (16) are connected, respectively, to the first voltage output (9) and to the output reference (10) of the partial power converter.
- an input capacitor (17) is provided that connects the first voltage input (7) with the input reference (8) and an output capacitor (18) that connects the first voltage output (9) with the reference outlet (10).
- the DC-DC converter (2) is unidirectional in power.
- Example 2 Use of the partial power DC-DC converter in battery arrangements
- the DC-DC partial power converter that is the object of the present invention can be used to connect a group of cells or battery array (19) with a direct voltage line or bus. (16).
- both positive terminals (191) and negative terminals (192) of said group of cells or battery arrangement are connected to the first voltage input (7) and the input reference (8), respectively, of the partial power converter.
- DC-DC (1) For their part, the positive (161) and negative (162) terminals of the DC voltage bus (16) are connected, respectively, to the first voltage output (9) and to the output reference (10) of the partial power converter.
- an input capacitor (17) is provided that connects the first voltage input (7) with the input reference (8) and an output capacitor (18) that connects the first voltage output (9) with the reference outlet (10).
- the DC-DC converter (2) is bidirectional in power, which allows both the charging and discharging of the battery (19).
- Example 3 Implementation of the DC-DC partial power converter in conjunction with a photovoltaic solar module
- Figure 6 illustrates a schematic diagram of a partial power DC-DC converter implementation in conjunction with a photovoltaic solar module. The connections are made as described in example 1 .
- the DC-DC converter (2) is a galvanically isolated converter and includes a transformer (21) that has a primary and a secondary.
- An H-bridge (22), formed by four unidirectional switches, is connected to the primary of the transformer (21) and a rectifier bridge (23) is connected to the secondary of the transformer (21).
- an input inductor (20) is provided which connects the first voltage input (7) with the positive input (3) of the DC-DC converter (2).
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/270,680 US20240072677A1 (en) | 2020-12-30 | 2021-12-28 | Partial power dc-dc converter with controllable topology |
EP21912389.0A EP4274077A1 (en) | 2020-12-30 | 2021-12-28 | Partial power dc-dc converter with controllable topology |
CN202180092658.8A CN116802980A (zh) | 2020-12-30 | 2021-12-28 | 具有可控拓扑的部分功率dc-dc转换器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CL2020003436A CL2020003436A1 (es) | 2020-12-30 | 2020-12-30 | Convertidor de potencia parcial dc-dc de topología controlable |
CL3436-2020 | 2020-12-30 |
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Publication Number | Publication Date |
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WO2022140873A1 true WO2022140873A1 (es) | 2022-07-07 |
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PCT/CL2021/050126 WO2022140873A1 (es) | 2020-12-30 | 2021-12-28 | Convertidor de potencia parcial dc-dc de topología controlable |
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US (1) | US20240072677A1 (es) |
EP (1) | EP4274077A1 (es) |
CN (1) | CN116802980A (es) |
CL (1) | CL2020003436A1 (es) |
WO (1) | WO2022140873A1 (es) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9960687B2 (en) | 2016-06-06 | 2018-05-01 | General Electric Company | System and method for a DC/DC converter |
US10384628B2 (en) * | 2016-07-29 | 2019-08-20 | Ford Global Technologies, Llc | On-board electrical system for motor vehicles comprising a converter and a high-load consumer |
-
2020
- 2020-12-30 CL CL2020003436A patent/CL2020003436A1/es unknown
-
2021
- 2021-12-28 WO PCT/CL2021/050126 patent/WO2022140873A1/es active Application Filing
- 2021-12-28 EP EP21912389.0A patent/EP4274077A1/en active Pending
- 2021-12-28 US US18/270,680 patent/US20240072677A1/en active Pending
- 2021-12-28 CN CN202180092658.8A patent/CN116802980A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9960687B2 (en) | 2016-06-06 | 2018-05-01 | General Electric Company | System and method for a DC/DC converter |
US10384628B2 (en) * | 2016-07-29 | 2019-08-20 | Ford Global Technologies, Llc | On-board electrical system for motor vehicles comprising a converter and a high-load consumer |
Non-Patent Citations (1)
Title |
---|
ZAPATA, J. ET AL.: "Analysis of Partial Power DC-DC Converters for Two-Stage Photovoltaic Systems", IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS MARS, vol. 7, no. 1, 2019, pages 591 - 603, XP011709814, DOI: 10.1109/JESTPE.2018.2842638 * |
Also Published As
Publication number | Publication date |
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EP4274077A1 (en) | 2023-11-08 |
US20240072677A1 (en) | 2024-02-29 |
CL2020003436A1 (es) | 2022-07-22 |
CN116802980A (zh) | 2023-09-22 |
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