CN211018291U - Wind power grid connection device - Google Patents
Wind power grid connection device Download PDFInfo
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- CN211018291U CN211018291U CN201922199157.2U CN201922199157U CN211018291U CN 211018291 U CN211018291 U CN 211018291U CN 201922199157 U CN201922199157 U CN 201922199157U CN 211018291 U CN211018291 U CN 211018291U
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- current control
- weak current
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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Abstract
The utility model discloses a wind power grid-connected device, including aerogenerator, and net controller, grid-connected inverter and electric wire netting network, the aerogenerator output is provided with and net controller, and net controller below is connected with the unloader through the wire, and net controller one side is provided with weak current control box one. Has the advantages that: the utility model discloses an add weak current control box two, can realize the break-make operation to the process of being incorporated into the power networks through intelligent control ware two, can follow the control of mechanical realization to the process of being incorporated into the power networks, ensure the operation security of the process of being incorporated into the power networks, through add backup battery one and backup battery two in weak current control box one and two inside, realize automatic charging through storage battery, can prevent unexpected outage and influence the break-make operation to weak current control switch one and weak current control switch two, improve the operating stability of device.
Description
Technical Field
The utility model relates to a wind power grid technical field, concretely relates to wind power grid is incorporated into power networks device.
Background
With the large-scale development and utilization of wind energy, new problems and challenges of wind power development appear, and the problems of wind power grid-connected consumption and wind generator set operation reliability are highlighted. From the characteristics of wind power generation, the wind power generation is mainly caused by unbalance between wind energy resources and power requirements in regional distribution and time distribution, random intermittent characteristics of the wind energy resources and the like, the wind power generator grid-connected control device has three modes of soft grid connection, voltage reduction operation and rectification inversion, and grid-connected control of the wind power generator directly influences whether the wind power generator can transmit electric energy to a power transmission grid and whether a unit is influenced by impact current during grid connection.
However, most of the existing wind power grid connection devices adopt software to control the grid connection process, no mechanical on-off device is arranged during grid connection, so that the safety of grid connection operation is low, and meanwhile, due to the fact that no standby battery is arranged in the weak current control component, the normal use of the weak current control component is influenced during accidental power failure.
Disclosure of Invention
The utility model aims at providing a wind power grid-connected device for solving above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a wind power grid-connected device comprises a wind driven generator, a grid-connected controller, a grid-connected inverter and a grid network, wherein the grid-connected controller is arranged at the output end of the wind driven generator, an unloader is connected to the lower part of the grid-connected controller through a lead, a first weak current control box body is arranged on one side of the grid-connected controller, the first weak current control box body comprises a first weak current control switch arranged in the first weak current control box body, a current sensor arranged on one side of the first weak current control switch, a voltage sensor arranged on one side of the current sensor, a first backup battery arranged below the inner part of the first weak current control box body and a first remote controller arranged on one side of the first backup battery, a first intelligent controller is connected to the upper part of the first weak current control box body, a charge-discharge controller is arranged on one side of the first weak current control box body, and a storage battery pack is connected to, the utility model discloses a low-voltage power supply system, including charge and discharge controller, grid-connected inverter, transformer one side, transformer one, transformer below is connected with kilowatt-hour meter one, the kilowatt-hour meter below is connected with resident power consumption electrical apparatus, transformer one side is provided with weak current control box two, weak current control box two is including setting up weak current control switch two, the setting of weak current control box two inside below are in spare battery two and setting are in the remote controller two of spare battery two one side, weak current control box two below is connected with intelligent control ware two, weak current control box two one side is provided with transformer two, transformer two one side is provided with kilowatt-hour meter two, kilowatt-hour meter two one side is connected with the electric wire netting network.
Furthermore, the grid-connected controller is connected with the first weak current control box body through a power transmission line, and the first weak current control box body is electrically connected with the first intelligent controller.
By adopting the technical scheme, the grid-connected controller is mainly used for controlling the grid-connected process of the wind driven generator, and the intelligent controller I can intelligently control the on-off of the weak current control switch I in the weak current control box I.
Furthermore, the first weak current control box body is connected with the first standby battery through a clamping groove, the first weak current control box body is connected with the first remote controller through a screw, and the current sensor, the voltage sensor and the first weak current control switch are connected through a power transmission line.
Through adopting above technical scheme, spare battery one does work of weak current control box one provides reserve power consumption, when can placing unexpected power failure, influences the intelligent control ware is a pair of the control of weak current control box one, current sensor with voltage sensor can real-time detection the electric quantity information of aerogenerator output, and then provides data reference for the process of being incorporated into the power networks of wind power grid.
Furthermore, the weak current control box I and the grid-connected inverter are connected with the charge and discharge controller through a power transmission line, and the charge and discharge controller is connected with the storage battery through the power transmission line.
By adopting the technical scheme, the charge-discharge controller is mainly used for controlling the charge-discharge process of the storage battery pack, and can charge the storage battery pack during normal work and supply the storage battery pack for normal use of each control component.
Further, the first weak current control box body is connected with the grid-connected inverter through a power transmission line, and the grid-connected inverter is connected with the second weak current control box body through the power transmission line.
By adopting the technical scheme, the grid-connected inverter can convert direct current into corresponding alternating current, and preparation is made for the electricity consumption of residents and the grid-connected process.
Furthermore, the first transformer, the grid-connected inverter and the second weak current control box body are connected through a power transmission line, and the first transformer is connected with the first watt-hour meter through the power transmission line.
By adopting the technical scheme, the first transformer can convert the alternating current converted by the grid-connected inverter into 220V residential electricity voltage, and the voltage is supplied to the residential electricity utilization appliances.
Furthermore, the first kilowatt-hour meter is connected with the residential electric appliances through a power transmission line, and the second remote controller is electrically connected with the first kilowatt-hour meter.
Through adopting above technical scheme, first kilowatt-hour meter can real-time detection resident's power consumption, for the control process of intelligent control ware two provides the data reference.
Further, the weak current control box body II is connected with the standby battery II through a clamping groove, and the weak current control box body II is connected with the remote controller II through a screw.
Through the technical scheme above the adoption, spare battery two does the normal work of weak current control box two provides reserve power consumption, remote controller two with intelligent control ware two is connected, can ensure intelligent control ware two can be right weak current control switch two carries out remote control.
Furthermore, the weak current control box body II is connected with the transformer II through a power transmission line, the transformer II is connected with the watt-hour meter II through the power transmission line, and the watt-hour meter II is connected with the power grid network through the power transmission line.
By adopting the technical scheme, the watt-hour meter is used for metering the grid-connected electric quantity, the weak current control box II can realize the grid-connected on-off operation, the grid-connected control can be realized mechanically, and the operation safety in the grid-connected process is ensured.
Furthermore, the first intelligent controller and the second intelligent controller are electrically connected with the storage battery pack, and the first weak current control box body and the second weak current control box body are electrically connected with the storage battery pack.
By adopting the technical scheme, the storage battery is additionally arranged to supply power for the electrical control part inside the grid-connected device, so that the dependence on external power can be greatly reduced, and meanwhile, the running stability of each control part can be improved.
The specific working principle is as follows: when the grid-connected device is used, the wind driven generator transmits the converted electric energy to the grid-connected controller through the power transmission line, the grid-connected controller performs software control on a grid-connected process, a voltage sensor and a current sensor are arranged in the weak current control box body I, the change conditions of voltage and current on the power transmission line can be detected in real time, then information is fed back to the weak current control box body I and the grid-connected controller, data reference is provided for the grid-connected control process of the grid-connected controller, the spare battery I can provide spare power support for the work of the weak current control box body I and the work of the intelligent controller I, the spare battery II can provide spare power support for the work of the weak current control box body II and the work of the intelligent controller II, and the spare battery I and the spare battery II can be charged through the storage battery pack, the first transformer can convert the alternating current converted by the grid-connected inverter into the corresponding alternating current to prepare for the electricity consumption of residents and the grid-connected process, the first transformer can convert the alternating current converted by the grid-connected inverter into 220V electricity consumption voltage of the residents to supply to the electrical appliances for the residents, the second weak current control box body can realize on-off operation of grid connection, can mechanically realize control over grid connection, ensures the operation safety of the grid-connected process, and the grid-connected inverter converts direct connection points output by a wind driven generator into the alternating current which is then connected with a power grid network after the voltage is increased by the second transformer.
The beneficial effects of the utility model reside in that:
1. the utility model can realize the on-off operation of the grid-connected process through the second intelligent controller by additionally arranging the second weak current control box body, can mechanically realize the control of the grid-connected process, and ensures the operation safety of the grid-connected process;
2. the utility model discloses an add stand-by battery one and stand-by battery two inside at weak current control box one and weak current control box two, realize automatic charging through storage battery, can prevent unexpected outage and influence the break-make operation to weak current control switch one and weak current control switch two, improve device's operating stability.
Drawings
Fig. 1 is a front view of a grid-connected device of a wind power grid according to the present invention;
fig. 2 is a main sectional view of a crushing and sorting box in a grid-connected device of a wind power grid according to the present invention;
fig. 3 is a structural diagram of a material guiding box in a wind power grid connection device of the present invention.
The reference numerals are explained below:
1. a wind power generator; 2. a grid-connected controller; 3. an unloader; 4. a weak current control box body I; 401. a weak current control switch I; 402. a current sensor; 403. a voltage sensor; 404. a first standby battery; 405. a first remote controller; 5. a first intelligent controller; 6. a charge and discharge controller; 7. a battery pack; 8. a grid-connected inverter; 9. a first transformer; 10. the household power utilization appliance; 11. a weak current control box body II; 1101. a weak current control switch II; 1102. a second standby battery; 1103. a second remote controller; 12. a second intelligent controller; 13. a first kilowatt-hour meter; 14. a second transformer; 15. a second electric meter; 16. a grid network.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-3, a wind power grid connection device includes a wind power generator 1, a grid connection controller 2, a grid connection inverter 8 and a grid network 16, the grid connection controller 2 is disposed at an output end of the wind power generator 1, an unloader 3 is connected below the grid connection controller 2 through a lead, a weak current control box 4 is disposed at one side of the grid connection controller 2, the weak current control box 4 includes a weak current control switch one 401 disposed inside the weak current control box 4, a current sensor 402 disposed at one side of the weak current control switch one 401, a voltage sensor 403 disposed at one side of the current sensor 402, a backup battery one 404 disposed below inside the weak current control box one 4 and a remote controller one 405 disposed at one side of the backup battery one 404, a first intelligent controller 5 is connected above the weak current control box 4, a charge and discharge controller 6 is arranged on one side of the weak current control box body 4, a storage battery pack 7 is connected above the charge and discharge controller 6, the grid-connected inverter 8 is arranged on one side of the charge and discharge controller 6, a transformer I9 is arranged on one side of the grid-connected inverter 8, a watt-hour meter I13 is connected below the transformer I9, a residential power consumption electric appliance 10 is connected below the watt-hour meter I13, a weak current control box body II 11 is arranged on one side of the transformer I9, the weak current control box body II 11 comprises a weak current control switch II 1101 arranged inside the weak current control box body II 11, a standby battery II 1102 arranged below the interior of the weak current control box body II 11 and a remote controller II 1103 arranged on one side of the standby battery II 1102, an intelligent controller II 12 is connected below the weak current control box body II 11, and a transformer II 14 is arranged on one side of the weak current control box body, and a second electric meter 15 is arranged on one side of the second transformer 14, and the grid network 16 is connected to one side of the second electric meter 15.
In this embodiment, the grid-connected controller 2 is connected to the weak current control box body 14 through a power transmission line, the weak current control box body 4 is electrically connected to the intelligent controller 5, the grid-connected controller 2 is mainly used for controlling a grid-connected process of the wind turbine generator 1, and the intelligent controller 5 can intelligently control the weak current control box body 4 to control the on-off of the switch one 401 through the weak current inside.
In this embodiment, weak current control box 4 with a backup battery 404 passes through the draw-in groove and is connected, weak current control box 4 with a remote control 405 passes through the screw connection, current sensor 402 and voltage sensor 403 with a weak current control switch 401 all connects through transmission line, a backup battery 404 is for the work of weak current control box 4 provides reserve power consumption, when can placing unexpected power failure, influences intelligent control ware 5 is right the control of weak current control box 4, current sensor 402 with voltage sensor 403 can real-time detection the electric quantity information of aerogenerator 1 output, and then provides data reference for the process of being incorporated into the power networks of wind-powered electricity generation electric wire netting.
In this embodiment, the weak current control box body one 4 and the grid-connected inverter 8 are connected with the charge and discharge controller 6 through a power transmission line, the charge and discharge controller 6 is connected with the storage battery pack 7 through a power transmission line, and the charge and discharge controller 6 is mainly used for controlling the charge and discharge processes of the storage battery pack 7, can charge the storage battery pack 7 during normal work, and is used for normal use of each control component.
In this embodiment, the weak current control box body one 4 is connected with the grid-connected inverter 8 through a power transmission line, the grid-connected inverter 8 is connected with the weak current control box body two 11 through the power transmission line, and the grid-connected inverter 8 can convert direct current into corresponding alternating current to prepare for electricity consumption of residents and a grid-connected process.
In this embodiment, the first transformer 9, the grid-connected inverter 8 and the second weak current control box 11 are connected through a power transmission line, the first transformer 9 is connected with the first watt-hour meter 13 through a power transmission line, and the first transformer 9 can convert the alternating current converted by the grid-connected inverter 8 into 220V residential electricity voltage for the residential electricity appliance 10.
In this embodiment, the first electric meter 13 is connected to the residential electric appliance 10 through a power transmission line, the second remote controller 1103 is electrically connected to the first electric meter 13, and the first electric meter 13 can detect the power consumption of residents in real time to provide data reference for the control process of the second intelligent controller 12.
In this embodiment, the second weak current control box 11 and the second backup battery 1102 are connected through a card slot, the second weak current control box 11 and the second remote controller 1103 are connected through screws, the second backup battery 1102 provides standby power for the normal operation of the second weak current control box 11, the second remote controller 1103 is connected with the second intelligent controller 12, and it can be ensured that the second intelligent controller 12 can perform remote control on the second weak current control switch 1101.
In this embodiment, the weak current control box body two 11 is connected with the transformer two 14 through a power transmission line, the transformer two 14 is connected with the watt-hour meter two 15 through a power transmission line, the watt-hour meter two 15 is connected with the power grid network 16 through a power transmission line, the watt-hour meter two 15 is used for measuring grid-connected electric quantity, the weak current control box body two 11 can realize on-off operation of grid connection, can mechanically realize control of grid connection, and ensures operation safety in a grid connection process.
In this embodiment, the first intelligent controller 5 and the second intelligent controller 12 are electrically connected to the storage battery pack 7, the first weak current control box 4 and the second weak current control box 11 are electrically connected to the storage battery pack 7, and the storage battery pack 7 is additionally provided to supply power to an electrical control component inside the grid-connected device, so that the dependence on external power can be greatly reduced, and the running stability of each control component can be improved.
The specific working principle is as follows: when the grid-connected device is used, the wind driven generator 1 transmits the converted electric energy to the grid-connected controller 2 through a transmission line, the grid-connected controller 2 performs software control on a grid-connected process, a voltage sensor 403 and a current sensor 402 are arranged in the weak current control box body 14, the voltage and current change conditions on the transmission line can be detected in real time, then information is fed back to the weak current control box body 4 and the grid-connected controller 2, data reference is provided for the grid-connected control process of the grid-connected controller 2, the standby battery I404 can provide standby power support for the work of the weak current control box body 4 and the intelligent controller I5, the standby battery II 1102 can provide standby power support for the work of the weak current control box body II 11 and the intelligent controller II 12, and the standby battery I404 and the standby battery II can be charged through the storage battery pack 7, the internal electric quantity of the first backup battery 404 and the second backup battery 1102 is sufficient, the grid-connected inverter 8 can convert direct current into corresponding alternating current to prepare for residential electricity utilization and grid-connected processes, the transformer 9 can convert the alternating current converted by the grid-connected inverter 8 into 220V residential electricity utilization voltage to be supplied to the residential electricity utilization appliance 10 for use, the weak current control box body 11 can realize on-off operation of grid connection, control of grid connection can be realized mechanically, operation safety of the grid-connected process is ensured, the grid-connected inverter 8 converts direct connection points output by the wind driven generator 1 into alternating current, and then the alternating current is connected with the power grid network 16 after the voltage is increased through the transformer two.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (10)
1. A wind power grid connection device is characterized in that: the grid-connected system comprises a wind driven generator (1), a grid-connected controller (2), a grid-connected inverter (8) and a power grid network (16), wherein the grid-connected controller (2) is arranged at the output end of the wind driven generator (1), an unloader (3) is connected below the grid-connected controller (2) through a lead, a weak current control box body I (4) is arranged on one side of the grid-connected controller (2), the weak current control box body I (4) comprises a weak current control switch I (401) arranged inside the weak current control box body I (4), a current sensor (402) arranged on one side of the weak current control switch I (401), a voltage sensor (403) arranged on one side of the current sensor (402), a backup battery I (404) arranged below the inside of the weak current control box body I (4) and a remote controller I (405) arranged on one side of the backup battery I (404), weak current control box (4) top is connected with intelligent control ware (5), weak current control box (4) one side is provided with charge-discharge control ware (6), charge-discharge control ware (6) top is connected with storage battery (7), charge-discharge control ware (6) one side is provided with grid-connected inverter (8), grid-connected inverter (8) one side is provided with transformer (9), transformer (9) below is connected with kilowatt-hour meter (13), kilowatt-hour meter (13) below is connected with resident power consumption electrical apparatus (10), transformer (9) one side is provided with weak current control box two (11), weak current control box two (11) are including setting up weak current control switch two (1101) inside weak current control box two (11), setting are in spare battery two (1102) and the setting of the inside below of weak current control box two (11) are in the remote control of spare battery two (1102) one side The intelligent weak current control system comprises a second controller (1103), a second intelligent controller (12) is connected to the lower portion of the second weak current control box body (11), a second transformer (14) is arranged on one side of the second weak current control box body (11), a second watt-hour meter (15) is arranged on one side of the second transformer (14), and the power grid network (16) is connected to one side of the second watt-hour meter (15).
2. The grid-connected device of claim 1, wherein: the grid-connected controller (2) is connected with the weak current control box body I (4) through a power transmission line, and the weak current control box body I (4) is electrically connected with the intelligent controller I (5).
3. The grid-connected device of claim 1, wherein: the first weak current control box body (4) is connected with the first backup battery (404) through a clamping groove, the first weak current control box body (4) is connected with the first remote controller (405) through a screw, and the current sensor (402), the voltage sensor (403) and the first weak current control switch (401) are connected through a power transmission line.
4. The grid-connected device of claim 1, wherein: the weak current control box body I (4) and the grid-connected inverter (8) are connected with the charge-discharge controller (6) through a power transmission line, and the charge-discharge controller (6) is connected with the storage battery pack (7) through the power transmission line.
5. The grid-connected device of claim 1, wherein: the weak current control box body I (4) is connected with the grid-connected inverter (8) through a power transmission line, and the grid-connected inverter (8) is connected with the weak current control box body II (11) through the power transmission line.
6. The grid-connected device of claim 1, wherein: the transformer I (9) is connected with the grid-connected inverter (8) and the weak current control box body II (11) through power transmission lines, and the transformer I (9) is connected with the watt-hour meter I (13) through the power transmission lines.
7. The grid-connected device of claim 1, wherein: the first electric meter (13) is connected with the residential electric appliances (10) through a power transmission line, and the second remote controller (1103) is electrically connected with the first electric meter (13).
8. The grid-connected device of claim 1, wherein: and the second weak current control box body (11) is connected with the second standby battery (1102) through a clamping groove, and the second weak current control box body (11) is connected with the second remote controller (1103) through a screw.
9. The grid-connected device of claim 1, wherein: the weak current control box body II (11) is connected with the transformer II (14) through a power transmission line, the transformer II (14) is connected with the watt-hour meter II (15) through the power transmission line, and the watt-hour meter II (15) is connected with the power grid network (16) through the power transmission line.
10. The grid-connected device of claim 1, wherein: the intelligent controller I (5) and the intelligent controller II (12) are electrically connected with the storage battery pack (7), and the weak current control box I (4) and the weak current control box II (11) are electrically connected with the storage battery pack (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922199157.2U CN211018291U (en) | 2019-12-10 | 2019-12-10 | Wind power grid connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922199157.2U CN211018291U (en) | 2019-12-10 | 2019-12-10 | Wind power grid connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211018291U true CN211018291U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922199157.2U Expired - Fee Related CN211018291U (en) | 2019-12-10 | 2019-12-10 | Wind power grid connection device |
Country Status (1)
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| CN (1) | CN211018291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994677A (en) * | 2019-12-10 | 2020-04-10 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Wind power grid connection device |
-
2019
- 2019-12-10 CN CN201922199157.2U patent/CN211018291U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994677A (en) * | 2019-12-10 | 2020-04-10 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Wind power grid connection device |
| CN110994677B (en) * | 2019-12-10 | 2024-07-19 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Wind power grid connection device |
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Granted publication date: 20200714 Termination date: 20201210 |