CN212343623U - Wind power converter - Google Patents
Wind power converter Download PDFInfo
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- CN212343623U CN212343623U CN202020535897.9U CN202020535897U CN212343623U CN 212343623 U CN212343623 U CN 212343623U CN 202020535897 U CN202020535897 U CN 202020535897U CN 212343623 U CN212343623 U CN 212343623U
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- heat exchanger
- heat dissipation
- dissipation system
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The application discloses a wind power converter, which comprises a single cabinet body, a machine side inductance heat dissipation system, a network side inductance heat dissipation system and a power heat dissipation system, wherein the machine side inductance heat dissipation system, the network side inductance heat dissipation system and the power heat dissipation system are arranged in the single cabinet body in a mutually isolated manner; the power cooling system comprises a first fan, a first heat exchanger and a power device; the first fan is used for forming a first airflow loop which flows through an air outlet of the first fan, the power device, the first heat exchanger and an air inlet of the first fan; the first heat exchanger is used for carrying out heat exchange on the airflow flowing into the first heat exchanger so as to output the cooled airflow. The system comprises a machine side inductance heat dissipation system, a network side inductance heat dissipation system and a power heat dissipation system which are arranged in a single cabinet body in a mutually isolated mode; the heat dissipation efficiency of the fan is improved, the number and the power of the fans are reduced, and the cost requirement of each wind energy converter on the fans is reduced.
Description
Technical Field
The application relates to the technical field of power electronics, in particular to a wind power converter.
Background
The converter is the main electrical equipment in the wind power generation equipment, and the electric energy generated by the wind power generator is rectified and inverted by the converter and then is merged into the power grid.
Referring to fig. 1, the existing converter design is mainly a multi-cabinet parallel connection, and mainly includes three cabinets and four cabinets back to back. The switch devices form a cabinet, namely a grid-connected cabinet; the power distribution devices are independently formed into a cabinet and called a power distribution cabinet; the magnetic element and the power module form a single cabinet to be placed, and the single cabinet is called a power cabinet.
Fig. 2 is a schematic diagram of a single-machine circulation heat dissipation structure of a grid-connected cabinet and a power distribution cabinet of an existing wind power converter, wherein 11 in the diagram is a cabinet body, 12 is an air duct partition plate, 13 is a heat exchanger, and 14 is a fan. A single-machine circulating air duct is formed in the grid-connected cabinet (the left part of the air duct partition plate 12) and the power distribution cabinet (the right part of the air duct partition plate 12), and heat is circularly dissipated between the two cabinets through the heat exchanger 13 and the fan 14.
Fig. 3 is a schematic diagram of a dual-machine parallel circulation heat dissipation structure of a grid-connected cabinet and a power distribution cabinet of an existing wind power converter, in which 21 is a cabinet body, 22 is an air duct partition plate, 23 is a heat exchanger, and 24 is a fan. A double-machine parallel circulating heat dissipation air duct is formed in a grid-connected cabinet (the left part of an air duct partition plate 22) and a power distribution cabinet (the right part of the air duct partition plate 22), and heat is dissipated between the two cabinets in a parallel circulating mode through a heat exchanger 23 and a fan 24.
Fig. 4 is a schematic diagram of a double-bin type circulating heat dissipation structure of a power cabinet of an existing wind power converter, in which 31 is a cabinet body, 32 is a first air duct partition plate, 33 is a power module, 34 is a first fan, 35 is a first heat exchanger, 36 is a second air duct partition plate, 37 is a third air duct partition plate, 38 is a second heat exchanger, 39 is a second fan, and 40 is a magnetic element. As can be seen from this figure, the magnetic element 40 and the power module 33 are divided into two compartments within the cabinet 31 by the third duct partition 37, and the two compartments are each cyclically cooled by a heat exchanger and a fan.
In conclusion, the existing wind power converter is large in design volume, and needs to be combined by a plurality of different cabinets, so that the space of a heat dissipation system is too large, the heat dissipation efficiency is low, and the cost is high.
Disclosure of Invention
In view of this, an object of the present application is to provide a wind power converter, so as to solve the problems that the existing wind power converter is large in design volume, needs to use a plurality of different cabinet combinations, and causes an excessively large space of a heat dissipation system, low heat dissipation efficiency, and high cost.
The technical scheme adopted by the application for solving the technical problems is as follows:
according to one aspect of the application, the provided wind power converter comprises a single cabinet body, a machine side inductance heat dissipation system, a network side inductance heat dissipation system and a power heat dissipation system, wherein the machine side inductance heat dissipation system, the network side inductance heat dissipation system and the power heat dissipation system are arranged in the single cabinet body in a mutually isolated mode;
the power cooling system comprises a first fan, a first heat exchanger and a power device; the first fan, the first heat exchanger and the power device are connected;
the first fan is used for forming a first airflow loop which flows through an air outlet of the first fan, the power device, the first heat exchanger and an air inlet of the first fan; the first heat exchanger is used for carrying out heat exchange on the airflow flowing into the first heat exchanger so as to output cooled airflow.
In one embodiment, the first heat exchanger is a water cooled heat exchanger.
In one embodiment, the machine side inductance heat dissipation system comprises a second fan, a second heat exchanger, a machine side inductance and a machine side inductance enclosure frame;
the machine side inductor enclosure frame is wrapped on the periphery of the machine side inductor, and the second fan, the second heat exchanger and the machine side inductor enclosure frame are sequentially connected;
the second fan is used for forming a second airflow loop which flows through an air outlet of the second fan, the machine side inductor enclosure frame, the second heat exchanger and an air inlet of the second fan; the second heat exchanger is used for carrying out heat exchange on the airflow flowing into the second heat exchanger so as to output cooled airflow.
In one embodiment, a gap through which an air flow flows is provided between the machine side inductor enclosure and the machine side inductor.
In one embodiment, the second heat exchanger is a water cooled heat exchanger.
In one embodiment, the grid-side inductor heat dissipation system comprises a third fan, a third heat exchanger, a grid-side inductor and a grid-side inductor enclosure frame;
the network side inductor enclosure frame is wrapped on the periphery of the network side inductor, and the third fan, the third heat exchanger and the network side inductor enclosure frame are sequentially connected;
the third fan is used for forming a third airflow loop which flows through an air outlet of the third fan, the net side inductor enclosure frame, the third heat exchanger and an air inlet of the third fan; the third heat exchanger is used for carrying out heat exchange on the airflow flowing into the third heat exchanger so as to output cooled airflow.
In one embodiment, a gap is formed between the screen-side inductor enclosure and the screen-side inductor, through which the air flows.
In one embodiment, the third heat exchanger is a water cooled heat exchanger.
In one embodiment, the wind power converter comprises a first duct partition and a second duct partition; the single cabinet body is divided into an upper cabin body, a middle cabin body and a lower cabin body by the first air channel partition plate and the second air channel partition plate, and the machine side inductance heat dissipation system, the net side inductance heat dissipation system and the power heat dissipation system are arranged in the three cabin bodies.
In one embodiment, the machine side inductive heat dissipation system is disposed in the upper bin, the net side inductive heat dissipation system is disposed in the lower bin, and the power heat dissipation system is disposed in the middle bin; alternatively, the first and second electrodes may be,
the machine side inductance heat dissipation system is arranged in the lower bin body, the net side inductance heat dissipation system is arranged in the upper bin body, and the power heat dissipation system is arranged in the middle bin body.
The wind power converter of the embodiment of the application is characterized in that the wind power converter is provided with a machine side inductance heat dissipation system, a network side inductance heat dissipation system and a power heat dissipation system which are arranged in a single cabinet body in a mutually isolated manner; the problems that the existing wind power converter is large in design volume, needs to be combined by a plurality of different cabinets, and causes overlarge space of a heat dissipation system, low heat dissipation efficiency and higher cost are solved; the heat dissipation efficiency of the fan is improved, the number and the power of the fans are reduced, and the cost requirement of each wind energy converter on the fans is reduced.
Drawings
Fig. 1 is a schematic diagram of a cabinet layout structure of a conventional wind power converter;
fig. 2 is a schematic diagram of a single-machine circulation heat dissipation structure of a grid-connected cabinet and a power distribution cabinet of a conventional wind power converter;
fig. 3 is a schematic diagram of a dual-machine parallel-connection circulating heat dissipation structure of a grid-connected cabinet and a power distribution cabinet of a conventional wind power converter;
fig. 4 is a schematic diagram of a double-bin type circulating heat dissipation structure of a power cabinet of a conventional wind power converter;
fig. 5 is a schematic structural diagram of a wind power converter according to an embodiment of the present application.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer and clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example one
As shown in fig. 5, a first embodiment of the present application provides a wind power converter, which includes a single cabinet body 40, a first air duct partition 401 and a second air duct partition 402; the single cabinet body is divided into an upper, a middle and a lower bin bodies (41, 42 and 43 in the figure) by the first air duct partition plate 401 and the second air duct partition plate 402, and an independent heat dissipation system is arranged in each bin body.
In this embodiment, a machine side inductive heat dissipation system is disposed in the upper bin body 41, a net side inductive heat dissipation system is disposed in the lower bin body 43, and a power heat dissipation system is disposed in the middle bin body 42. In other examples, it is also possible that a machine-side inductive heat dissipation system is disposed in the lower bin body 43, a net-side inductive heat dissipation system is disposed in the upper bin body 41, and a power heat dissipation system is disposed in the middle bin body 42.
In this embodiment, the machine side inductance heat dissipation system of the upper bin body 41 includes a fan 411, a heat exchanger 412, a machine side inductance enclosure frame 413 and a machine side inductance 414.
Specifically, the machine side inductance enclosure frame 414 is wrapped around the machine side inductance 413, and the fan 411, the heat exchanger 412 and the machine side inductance enclosure frame 413 are connected in sequence;
the fan 411 is used for forming an airflow loop (shown by a dotted arrow in the figure) flowing through an air outlet of the fan 411, the machine side inductor 413, the machine side inductor enclosure 414, the heat exchanger 412 and an air inlet of the fan 411; the heat exchanger 412 is used for exchanging heat with the airflow flowing into the heat exchanger 412 to output cooled airflow.
The heat exchanger 412 may be a water-cooled heat exchanger, and the heat of the airflow flowing into the heat exchanger 412 is taken out by using the good heat exchange performance of the water-cooled heat exchanger to output the cooled airflow.
Further, a gap through which air flows is formed between the machine side inductance enclosure frame 414 and the machine side inductance 413, so that air flows in and out through the gap, and the heat dissipation effect on the machine side inductance 413 is improved.
In this embodiment, the power heat dissipation system of the middle bin body 42 includes a blower 421, a heat exchanger 422, and a power device; the fan 421, the heat exchanger 422 and the power device are connected;
the fan 421 is configured to form an airflow loop flowing through an air outlet of the fan 421, the power device, the heat exchanger 422, and an air inlet of the fan 421; the heat exchanger 422 is used for exchanging heat with the airflow flowing into the heat exchanger 422 to output cooled airflow.
In this embodiment, the heat exchanger 422 may be a water-cooled heat exchanger, and the heat of the airflow flowing into the heat exchanger 422 is taken out by using the good heat exchange performance of the water-cooled heat exchanger to output the cooled airflow.
In this embodiment, the net-side inductive heat dissipation system of the lower chamber body 43 includes a blower 431, a heat exchanger 432, a net-side inductive enclosure frame 433, and a net-side inductor 434.
Specifically, the grid-side inductor enclosure frame 434 is wrapped around the grid-side inductor 433, and the blower 431, the heat exchanger 432 and the grid-side inductor enclosure frame 433 are sequentially connected;
the blower 431 is used for forming an airflow loop (shown by a dotted arrow in the figure) which flows through an air outlet of the blower 431, the net side inductor 433, the net side inductor enclosure 434, the heat exchanger 432 and an air inlet of the blower 431; the heat exchanger 432 is used for exchanging heat with the airflow flowing into the heat exchanger 432 to output the cooled airflow.
The heat exchanger 432 may be a water-cooled heat exchanger, and the heat of the airflow flowing into the heat exchanger 432 is taken out by using the good heat exchange performance of the water-cooled heat exchanger to output the cooled airflow.
Further, a gap through which air flows is formed between the net-side inductor enclosure frame 434 and the net-side inductor 433, so that air flows in and out through the gap, and the heat dissipation effect on the net-side inductor 433 is improved.
Example two
As can be understood by referring to fig. 5 again, unlike the first embodiment, in the present embodiment, the power heat dissipation system of the middle bin body 42 includes a blower 421, a heat exchanger 422, a power device, a dc bus capacitor, a grid-side filter capacitor 424 and a power distribution device 425; the power device and the direct current bus capacitor are integrated together (shown by reference 423 in the figure), and the fan 421, the heat exchanger 422 and the power device are connected in sequence; the net side filter capacitor 424 and the distribution device 425 are disposed proximate to the power device;
the fan 421 is configured to form an airflow loop that flows through an air outlet of the fan 421, the power distribution device 425, the grid-side filter capacitor 424, the power device, the dc bus capacitor (shown as 423 in the figure), the heat exchanger 422, and an air inlet of the fan 421; the heat exchanger 422 is used for exchanging heat with the airflow flowing into the heat exchanger 422 to output cooled airflow.
In this embodiment, the heat exchanger 422 may be a water-cooled heat exchanger, and the heat of the airflow flowing into the heat exchanger 422 is taken out by using the good heat exchange performance of the water-cooled heat exchanger to output the cooled airflow.
The wind power converter of the embodiment of the application is characterized in that the wind power converter is provided with a machine side inductance heat dissipation system, a network side inductance heat dissipation system and a power heat dissipation system which are arranged in a single cabinet body in a mutually isolated manner; the problems that the existing wind power converter is large in design volume, needs to be combined by a plurality of different cabinets, and causes overlarge space of a heat dissipation system, low heat dissipation efficiency and higher cost are solved; the heat dissipation efficiency of the fan is improved, the number and the power of the fans are reduced, and the cost requirement of each wind energy converter on the fans is reduced.
The preferred embodiments of the present application have been described above with reference to the accompanying drawings, and are not intended to limit the scope of the claims of the application accordingly. Any modifications, equivalents and improvements which may occur to those skilled in the art without departing from the scope and spirit of the present application are intended to be within the scope of the claims of the present application.
Claims (10)
1. A wind power converter is characterized by comprising a single cabinet body, a machine side inductance heat dissipation system, a network side inductance heat dissipation system and a power heat dissipation system, wherein the machine side inductance heat dissipation system, the network side inductance heat dissipation system and the power heat dissipation system are arranged in the single cabinet body in a mutually isolated manner;
the power cooling system comprises a first fan, a first heat exchanger and a power device; the first fan, the first heat exchanger and the power device are connected;
the first fan is used for forming a first airflow loop which flows through an air outlet of the first fan, the power device, the first heat exchanger and an air inlet of the first fan; the first heat exchanger is used for carrying out heat exchange on the airflow flowing into the first heat exchanger so as to output cooled airflow.
2. The wind power converter according to claim 1, wherein the first heat exchanger is a water-cooled heat exchanger.
3. The wind power converter according to claim 1 or 2, wherein the machine side inductor heat dissipation system comprises a second fan, a second heat exchanger, a machine side inductor and a machine side inductor enclosure frame;
the machine side inductor enclosure frame is wrapped on the periphery of the machine side inductor, and the second fan, the second heat exchanger and the machine side inductor enclosure frame are sequentially connected;
the second fan is used for forming a second airflow loop which flows through an air outlet of the second fan, the machine side inductor enclosure frame, the second heat exchanger and an air inlet of the second fan; the second heat exchanger is used for carrying out heat exchange on the airflow flowing into the second heat exchanger so as to output cooled airflow.
4. The wind power converter according to claim 3, wherein a gap is provided between the machine side inductor enclosure and the machine side inductor, through which the air current flows.
5. The wind power converter according to claim 3, wherein the second heat exchanger is a water-cooled heat exchanger.
6. The wind power converter according to claim 1, wherein the grid-side inductor heat dissipation system comprises a third fan, a third heat exchanger, a grid-side inductor and a grid-side inductor enclosure frame;
the network side inductor enclosure frame is wrapped on the periphery of the network side inductor, and the third fan, the third heat exchanger and the network side inductor enclosure frame are sequentially connected;
the third fan is used for forming a third airflow loop which flows through an air outlet of the third fan, the net side inductor enclosure frame, the third heat exchanger and an air inlet of the third fan; the third heat exchanger is used for carrying out heat exchange on the airflow flowing into the third heat exchanger so as to output cooled airflow.
7. The wind power converter according to claim 6, wherein a gap is provided between the grid-side inductor enclosure and the grid-side inductor, through which the airflow flows.
8. The wind power converter according to claim 6, wherein the third heat exchanger is a water-cooled heat exchanger.
9. The wind power converter according to claim 1, wherein the wind power converter comprises a first wind tunnel partition and a second wind tunnel partition; the single cabinet body is divided into an upper cabin body, a middle cabin body and a lower cabin body by the first air duct partition plate and the second air duct partition plate, and the machine side inductance heat dissipation system, the net side inductance heat dissipation system and the power heat dissipation system are arranged in the three cabin bodies.
10. The wind power converter according to claim 9, wherein the machine side induction heat dissipation system is disposed in the upper bin, the grid side induction heat dissipation system is disposed in the lower bin, and the power heat dissipation system is disposed in the middle bin; alternatively, the first and second electrodes may be,
the machine side inductance heat dissipation system is arranged in the lower bin body, the net side inductance heat dissipation system is arranged in the upper bin body, and the power heat dissipation system is arranged in the middle bin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020535897.9U CN212343623U (en) | 2020-04-13 | 2020-04-13 | Wind power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020535897.9U CN212343623U (en) | 2020-04-13 | 2020-04-13 | Wind power converter |
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| Publication Number | Publication Date |
|---|---|
| CN212343623U true CN212343623U (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020535897.9U Active CN212343623U (en) | 2020-04-13 | 2020-04-13 | Wind power converter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389170A (en) * | 2022-01-20 | 2022-04-22 | 阳光电源股份有限公司 | Wind power converter |
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2020
- 2020-04-13 CN CN202020535897.9U patent/CN212343623U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389170A (en) * | 2022-01-20 | 2022-04-22 | 阳光电源股份有限公司 | Wind power converter |
| CN114389170B (en) * | 2022-01-20 | 2024-04-12 | 阳光电源股份有限公司 | Wind power converter |
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