CN219715631U - Photovoltaic hydrogen production multiport converter test system - Google Patents
Photovoltaic hydrogen production multiport converter test system Download PDFInfo
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- CN219715631U CN219715631U CN202321085621.5U CN202321085621U CN219715631U CN 219715631 U CN219715631 U CN 219715631U CN 202321085621 U CN202321085621 U CN 202321085621U CN 219715631 U CN219715631 U CN 219715631U
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 23
- 239000001257 hydrogen Substances 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 230000002457 bidirectional effect Effects 0.000 claims description 43
- 238000006243 chemical reaction Methods 0.000 claims description 26
- 238000010276 construction Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a photovoltaic hydrogen production multiport converter testing system which is used for carrying out full-load power testing on a hydrogen production multiport converter and comprises a grid-side transformer T1, circuit breakers QF1 and QF2, a multiport converter A to be tested and a multiport converter B to be tested, wherein the inside of the multiport converter A to be tested comprises switches KA1, KA2, KA3, KA4, KA5 and KA6, and the inside of the multiport converter B to be tested comprises switches KB1, KB2, KB3, KB4, KB5 and KB6. The utility model provides a scheme of a butt-towing test system for the photovoltaic hydrogen production multi-port converter, and static and dynamic tests of the multi-port converter are realized through interconnection of direct current ports and interconnection of alternating current ports and internal switch switching of the multi-port converter A to be tested and the multi-port converter B to be tested. Therefore, the internal circulation and equipment full-power load test is achieved, and the electric energy loss and the platform construction cost are reduced.
Description
Technical Field
The utility model relates to a photovoltaic hydrogen production multiport converter testing system, and belongs to the technical field of power electronics.
Background
With the continuous construction and development of power electronics application technology and new energy industry, hydrogen energy is being researched and paid more attention as an efficient and clean energy. As an important device in the hydrogen production process, the requirements of the multi-port energy conversion device are gradually increased, the requirements of modularization and efficient design production of the multi-port energy conversion device are urgent, and the multi-port energy conversion device which is safe, reliable, economical and reasonable is an important guarantee and premise of preparing green hydrogen by electrolyzing water. How to efficiently realize the production, manufacture and test of the multi-port energy conversion device requires further research and development to ensure the safe and stable operation of the multi-port energy conversion device. However, the current devices cannot meet the requirement of the power grid on continuous change of energy and power.
Disclosure of Invention
The utility model provides a photovoltaic hydrogen production multiport converter testing system, which solves the problems disclosed in the background technology.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a photovoltaic hydrogen production multiport converter test system is characterized in that: the device comprises a network side transformer T1, a breaker QF2, a multi-port converter A to be tested and a multi-port converter B to be tested; the multi-port converter A to be tested is provided with a direct current port A1, a direct current port A2, a direct current port A3, a direct current port A4, a direct current port A5 and an alternating current port A6; the multi-port converter B to be tested is provided with a direct current port B1, a direct current port B2, a direct current port B3, a direct current port B4, a direct current port B5 and an alternating current port B6; the direct current port A1, the direct current port A3 and the direct current port A5 of the multi-port converter A to be tested are connected with each other; the direct current port B1, the direct current port B3 and the direct current port B5 of the multi-port converter B to be tested are connected with each other; the direct current port A2 of the multi-port converter A to be tested is connected with the direct current port B2 of the multi-port converter B to be tested; the direct current port A4 of the multi-port converter A to be tested is connected with the direct current port B4 of the multi-port converter B to be tested; the alternating current port A6 of the multi-port converter A to be tested is connected with the alternating current port B6 of the multi-port converter B to be tested; one end of the breaker QF1 is connected with a power grid, the other end of the breaker QF1 is connected with an alternating current port B6 of the multi-port converter B to be tested and one end of the transformer T1, the other end of the transformer T1 is connected with an alternating current port A6 of the multi-port converter A to be tested, and two ends of the breaker QF2 are respectively connected with a direct current port A1 of the multi-port converter A to be tested and a direct current port B5 of the multi-port converter B to be tested.
Preferably, the multi-port converter A to be tested comprises a bidirectional alternating current/direct current converting unit A-DCAC, a bidirectional direct current converting unit A-DCDC1, a bidirectional direct current converting unit A-DCDC2, a switch KA1, a switch KA2, a switch KA3, a switch KA4, a switch KA5 and a switch KA6; the switch KA5, the bidirectional alternating-current/direct-current conversion unit A-DCAC and the switch KA6 are sequentially connected and are arranged between the direct-current port A5 and the alternating-current port A6; the switch KA3, the bidirectional direct current conversion unit A-DCDC1 and the switch KA4 are sequentially connected and are arranged between the direct current port A3 and the direct current port A4; the switch KA1, the bidirectional direct current conversion unit A-DCDC2 and the switch KA2 are sequentially connected and are arranged between the direct current port A1 and the direct current port A2.
Preferably, the multi-port converter B to be tested comprises a bidirectional alternating current/direct current converter unit B-DCAC, a bidirectional direct current converter unit B-DCDC1, a bidirectional direct current converter unit B-DCDC2, a switch KB1, a switch KB2, a switch KB3, a switch KB4, a switch KB5 and a switch KB6; the switch KB5, the bidirectional alternating-current/direct-current conversion unit B-DCAC and the switch KB6 are connected in sequence and are arranged between the direct-current port B5 and the alternating-current port B6; the switch KB3, the bidirectional direct current converting unit B-DCDC1 and the switch KB4 are connected in sequence and are arranged between the direct current port B3 and the direct current port B4; the switch KB1, the bidirectional direct current converting unit B-DCDC2 and the switch KB2 are connected in sequence and are arranged between the direct current port B1 and the direct current port B2.
Preferably, the dc port A1, the dc port A3 and the dc port A5 of the multi-port converter a to be tested are the dc voltage level U2, and the dc port B1, the dc port B3 and the dc port B5 of the multi-port converter B to be tested are the dc voltage level U1; the direct current voltage level U1 and the direct current voltage level U2 are the same voltage level; the direct current port A2 of the multi-port converter A to be tested and the direct current port B2 of the multi-port converter B to be tested are of the same direct current voltage level U3; the direct current port A4 of the multi-port converter A to be tested and the direct current port B4 of the multi-port converter B to be tested are of the same direct current voltage level U4.
Preferably, the multi-port current transformer A, B has a control system inside. Various control functions can be realized.
The utility model has the beneficial effects that: through the interconnection of the direct current ports and the interconnection of the alternating current ports, and the internal switch switching of the multi-port converter A to be tested and the multi-port converter B to be tested, the static and dynamic test of the multi-port converter is realized. Therefore, the internal circulation and equipment full-power load test is achieved, the electric energy loss and the platform building cost are reduced, and the electric energy is saved.
Drawings
FIG. 1 is a schematic diagram of an application connection of a photovoltaic hydrogen production multiport converter of the present utility model;
fig. 2 is a system block diagram of a photovoltaic hydrogen production multiport converter testing system of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a photovoltaic hydrogen production multiport converter testing system which comprises a grid-side transformer T1, a breaker QF2, a multiport converter A to be tested and a multiport converter B to be tested.
The multi-port converter A to be tested comprises a bidirectional alternating current/direct current conversion unit A-DCAC, a bidirectional direct current conversion unit A-DCDC1 and a bidirectional direct current conversion unit A-DCDC2; switch KA1, switch KA2, switch KA3, switch KA4, switch KA5, switch KA6. The switch KA5, the bidirectional alternating current-direct current conversion unit A-DCAC and the switch KA6 are sequentially connected; the switch KA3, the bidirectional direct current conversion unit A-DCDC1 and the switch KA4 are sequentially connected; the switch KA1, the bidirectional direct current converting unit A-DCDC2 and the switch KA2 are sequentially connected. The multi-port converter A to be tested comprises a direct current port A1, a direct current port A2, a direct current port A3, a direct current port A4, a direct current port A5 and an alternating current port A6.
The to-be-tested multiport converter A is applied to a photovoltaic hydrogen production system, as shown in fig. 1. The direct current port A1, the direct current port A3 and the direct current port A5 of the multi-port converter A are connected with the MPPT equipment, and the light energy is transmitted to the multi-port converter A through the photovoltaic cell array and the MPPT equipment.
The bidirectional AC-DC converter unit A-DCAC has the function of transmitting electric energy to a power grid, and simultaneously transmitting the electric energy of the power grid to the DC port A5, so that the electric energy is conveniently converted into a power supply required by the electrolytic cell through the bidirectional DC converter unit A-DCDC 1; or the battery pack is charged through the bidirectional direct current converting unit A-DCDC 2.
The bidirectional direct current converting unit A-DCDC1 has the function of supplying power to the electrolytic tank through the bidirectional direct current converting unit A-DCDC 1.
The bidirectional direct current converting unit A-DCDC2 has the function of charging and discharging the battery pack through the bidirectional direct current converting unit A-DCDC 2.
A system block diagram of the photovoltaic hydrogen production multiport converter test system is shown in fig. 2.
The multi-port converter B to be tested comprises a bidirectional alternating current/direct current conversion unit B-DCAC, a bidirectional direct current conversion unit B-DCDC1 and a bidirectional direct current conversion unit B-DCDC2; switch KB1, switch KB2, switch KB3, switch KB4, switch KB5, switch KB6. The switch KB5, the bidirectional alternating current-direct current conversion unit B-DCAC and the switch KB6 are connected in sequence; the switch KB3, the bidirectional direct current conversion unit B-DCDC1 and the switch KB4 are connected in sequence; the switch KB1, the bidirectional direct current converting unit B-DCDC2 and the switch KB2 are connected in sequence. The multi-port converter B to be tested comprises a direct current port B1, a direct current port B2, a direct current port B3, a direct current port B4, a direct current port B5 and an alternating current port B6.
The direct current ports A1, A3 and A5 of the multi-port converter A to be tested are the direct current voltage level U2, and the direct current ports B1, B3 and B5 of the multi-port converter B to be tested are the direct current voltage level U1; the direct current voltage level U1 and the direct current voltage level U2 are the same voltage level; the direct current port A2 of the multi-port converter A to be tested and the direct current port B2 of the multi-port converter B to be tested are of the same direct current voltage level U3; the direct current port A4 of the multi-port converter A to be tested and the direct current port B4 of the multi-port converter B to be tested are in the same direct current voltage level U4, the alternating current voltage level of the alternating current port A6 of the multi-port converter A to be tested is U5, and the alternating current voltage level of the alternating current port B6 of the multi-port converter B to be tested is U6.
The direct current port A1, the direct current port A3 and the direct current port A5 of the multi-port converter A to be tested are connected with each other; the direct current port B1, the direct current port B3 and the direct current port B5 of the multi-port converter B to be tested are connected with each other; the direct current port A2 of the multi-port converter A to be tested is connected with the direct current port B2 of the multi-port converter B to be tested; the direct current port A4 of the multi-port converter A to be tested is connected with the direct current port B4 of the multi-port converter B to be tested; the alternating current port A6 of the multi-port converter A to be tested is connected with the alternating current port B6 of the multi-port converter B to be tested.
One end of a breaker QF1 is connected with a power grid, the other end of the breaker QF1 is connected with an alternating current port B6 of a multi-port converter B to be tested and one end of a transformer T1, the other end of the transformer T1 is connected with an alternating current port A6 of a multi-port converter A to be tested, and two ends of the breaker QF2 are respectively connected with a direct current port A1 of the multi-port converter A to be tested and a direct current port B5 of the multi-port converter B to be tested.
The multiport converter A, B has a control system inside. Various control functions can be realized.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (7)
1. A photovoltaic hydrogen production multiport converter test system is characterized in that: the device comprises a network side transformer T1, a breaker QF2, a multi-port converter A to be tested and a multi-port converter B to be tested; the multi-port converter A to be tested is provided with a direct current port A1, a direct current port A2, a direct current port A3, a direct current port A4, a direct current port A5 and an alternating current port A6; the multi-port converter B to be tested is provided with a direct current port B1, a direct current port B2, a direct current port B3, a direct current port B4, a direct current port B5 and an alternating current port B6; the direct current port A1, the direct current port A3 and the direct current port A5 of the multi-port converter A to be tested are connected with each other; the direct current port B1, the direct current port B3 and the direct current port B5 of the multi-port converter B to be tested are connected with each other; the direct current port A2 of the multi-port converter A to be tested is connected with the direct current port B2 of the multi-port converter B to be tested; the direct current port A4 of the multi-port converter A to be tested is connected with the direct current port B4 of the multi-port converter B to be tested; one end of the breaker QF1 is connected with a power grid, the other end of the breaker QF1 is connected with an alternating current port B6 of the multi-port converter B to be tested and one end of the transformer T1, the other end of the transformer T1 is connected with an alternating current port A6 of the multi-port converter A to be tested, and two ends of the breaker QF2 are respectively connected with a direct current port A1 of the multi-port converter A to be tested and a direct current port B5 of the multi-port converter B to be tested.
2. The photovoltaic hydrogen production multiport converter testing system of claim 1, wherein: the multi-port converter A to be tested comprises a bidirectional alternating current/direct current conversion unit A-DCAC, a bidirectional direct current conversion unit A-DCDC1, a bidirectional direct current conversion unit A-DCDC2, a switch KA1, a switch KA2, a switch KA3, a switch KA4, a switch KA5 and a switch KA6.
3. The photovoltaic hydrogen production multiport converter testing system of claim 2, wherein: the switch KA5, the bidirectional alternating-current/direct-current conversion unit A-DCAC and the switch KA6 are sequentially connected and are arranged between the direct-current port A5 and the alternating-current port A6; the switch KA3, the bidirectional direct current conversion unit A-DCDC1 and the switch KA4 are sequentially connected and are arranged between the direct current port A3 and the direct current port A4; the switch KA1, the bidirectional direct current conversion unit A-DCDC2 and the switch KA2 are sequentially connected and are arranged between the direct current port A1 and the direct current port A2.
4. The photovoltaic hydrogen production multiport converter testing system of claim 1, wherein: the multi-port converter B to be tested comprises a bidirectional alternating current/direct current converter unit B-DCAC, a bidirectional direct current converter unit B-DCDC1, a bidirectional direct current converter unit B-DCDC2, a switch KB1, a switch KB2, a switch KB3, a switch KB4, a switch KB5 and a switch KB6.
5. The photovoltaic hydrogen production multiport converter testing system of claim 4, wherein: the switch KB5, the bidirectional alternating-current/direct-current conversion unit B-DCAC and the switch KB6 are connected in sequence and are arranged between the direct-current port B5 and the alternating-current port B6; the switch KB3, the bidirectional direct current converting unit B-DCDC1 and the switch KB4 are connected in sequence and are arranged between the direct current port B3 and the direct current port B4; the switch KB1, the bidirectional direct current converting unit B-DCDC2 and the switch KB2 are connected in sequence and are arranged between the direct current port B1 and the direct current port B2.
6. The photovoltaic hydrogen production multiport converter testing system of claim 1, wherein: the direct current port A1, the direct current port A3 and the direct current port A5 of the multi-port converter A to be tested are of a direct current voltage level U2, and the direct current port B1, the direct current port B3 and the direct current port B5 of the multi-port converter B to be tested are of a direct current voltage level U1; the dc voltage level U1 and the dc voltage level U2 are the same voltage level.
7. The photovoltaic hydrogen production multiport converter testing system of claim 1, wherein: the direct current port A2 of the multi-port converter A to be tested and the direct current port B2 of the multi-port converter B to be tested are of the same direct current voltage level U3; the direct current port A4 of the multi-port converter A to be tested and the direct current port B4 of the multi-port converter B to be tested are of the same direct current voltage level U4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321085621.5U CN219715631U (en) | 2023-05-08 | 2023-05-08 | Photovoltaic hydrogen production multiport converter test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321085621.5U CN219715631U (en) | 2023-05-08 | 2023-05-08 | Photovoltaic hydrogen production multiport converter test system |
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| Publication Number | Publication Date |
|---|---|
| CN219715631U true CN219715631U (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321085621.5U Active CN219715631U (en) | 2023-05-08 | 2023-05-08 | Photovoltaic hydrogen production multiport converter test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219715631U (en) |
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2023
- 2023-05-08 CN CN202321085621.5U patent/CN219715631U/en active Active
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