CN205336092U - Wind energy converter and power module thereof - Google Patents
Wind energy converter and power module thereof Download PDFInfo
- Publication number
- CN205336092U CN205336092U CN201620082598.8U CN201620082598U CN205336092U CN 205336092 U CN205336092 U CN 205336092U CN 201620082598 U CN201620082598 U CN 201620082598U CN 205336092 U CN205336092 U CN 205336092U
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- electric capacity
- power model
- base plate
- radiator
- power
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Abstract
The utility model provides a wind energy converter and power module thereof, this wind energy converter of includes fixing device and a plurality of power module, and these a plurality of power module parallel mount are on this fixing device, and this power module includes mounting bracket, a plurality of electric capacity, at least one power switch module and radiator, and this power switch module is installed on this radiator, and this mounting bracket includes: the bottom plate, the bottom of this bottom plate is provided with the flange, the electric capacity frame, fix the upper portion of this bottom plate and with the topside parallel and level setting of this bottom plate, this electric capacity frame is provided with a plurality of electric capacity mounting holes including electric capacity installation department, this electric capacity installation department, this a plurality of electric capacity correspond respectively to be installed in this electric capacity mounting hole and fixes on this bottom plate, this radiator fix this electric capacity put up and this flange between, wherein, the direct current of this power switch module side links to each other through female the arranging of a direct current stromatolite with the positive negative pole of these a plurality of electric capacity, and the female direct current end of arranging of this direct current stromatolite sets up in the top of this power module.
Description
Technical field
This utility model relates to wind energy converter and the power model thereof of a kind of wind energy converter and power model, particularly a kind of reduced fault rate being easy to packed and transported。
Background technology
Wind energy converter is the core component of MW class wind turbine, and the power model comprising power switching modules is the core component in wind energy converter。Power switching modules can be realized by IGBT (InsulatedGateBipolarTransistor, igbt) module。Owing to using environment special, power model needs integrated level height, electric current density height, reliability height as the core component of whole wind generator system, is easily maintained and is prone to the features such as independent packed and transported。
A kind of existing power module architectures, integrated DC filter capacitor in power model。DC filter capacitor is connected with the DC side of power switching modules by direct current stack bus bar, and direct current stack bus bar is arranged at power model back。When multiple power models are loaded wind energy converter, direct current stack bus bar is at power model back, due to the stop of side power model, when demounting bolt, staff can not touch bolt, bolt easily drops, and is high tension apparatus bottom power model, is very easy to cause the system failure。The confluence copper bar of multiple power models also is located at the rear portion of module, and owing to the installing space degree of depth is deeper and narrow, staff can not directly touch, it is necessary to use the sleeve barrel tool adding long size to go to fix。Inconsistent with the sense of current additionally, due to electric capacity arrangement, by the current unevenness of each electric capacity, cause the electric capacity heating of diverse location and aging variation big, cause that the fault rate of DC filter capacitor is higher。
Another kind of existing power module architectures, not integrated DC filter capacitor in power model, but external capacitor。Being connected by copper bar between power switching modules with DC filter capacitor, add maintenance difficulties on the one hand, the stray inductance between DC filter capacitor and power switch component is big on the other hand, it is easy to produces to turn off overvoltage, causes device failure。
Owing to thin-film capacitor has reliability high compared to electrochemical capacitor, during inefficacy, the advantage of not leakage liquid, tends to the use thin-film capacitor DC filter capacitor as power model at present。But thin-film capacitor is many compared to electrochemical capacitor, and frame ground fixes two requirements with afterbody bolt, in current structure, thin-film capacitor ground connection needs to be separately provided lead-in wire or copper bar；Additionally afterbody protrudes a bolt head so that whole power model is in irregular shape, it has not been convenient to packaging and transport protection。
The power model of prior art is arranged in wind energy converter and substantially uses the form that glidepath, front door and rear air channel sandwich to fix。When wind energy converter transports, because road out-of-flatness, wind energy converter is subjected to jolt, and the mode of double team can not be completely fixed power model。And the end that exchanges of exchange end and the wind energy converter of power switching modules is that hard copper row is connected, therefore there is mechanical stress in IGBT AC in transportation, it is easy to damages。
Utility model content
For solving the drawbacks described above of prior art, this utility model provides a kind of wind energy converter and power model thereof。
To achieve these goals, this utility model provides a kind of power model, and including installing rack, multiple electric capacity, at least one power switching modules and radiator, described power switching modules is arranged on described radiator, and wherein, described installing rack includes:
Base plate, the bottom of described base plate is provided with flange；
Electric capacity frame, it is fixed on the top of described base plate and setting concordant with the top margin of described base plate, described electric capacity frame includes electric capacity installation portion, described electric capacity installation portion is provided with multiple electric capacity installing hole, the plurality of electric capacity correspondence respectively is arranged in described electric capacity installing hole and is fixed on described base plate, and described radiator is fixed between described electric capacity frame and described flange；
Wherein, the DC side of described power switching modules is connected by a direct current stack bus bar with the both positive and negative polarity of the plurality of electric capacity, and the DC terminal of described direct current stack bus bar is arranged at the over top of described power model。
Above-mentioned power model, wherein, the AC of described power switching modules and an exchange row are connected, and described exchange row is a soft copper row。
Above-mentioned power model, wherein, described electric capacity frame also includes the wire installation portion for the lead-out terminal Yu wire installing fixing described power model, and described electric capacity installation portion is disposed adjacent with described wire installation portion, and described electric capacity installation portion and described wire installation portion are engraved structure。
Above-mentioned power model, wherein, the top of described radiator is fixing with the bottom of described electric capacity frame to be connected, and the bottom of described radiator is fixing with described flange to be connected。
Above-mentioned power model, wherein, described radiator is attached to the bottom of described electric capacity frame and described flange respectively by screw thread, and described electric capacity frame invests described base plate by screw fastening。
Above-mentioned power model, wherein, described radiator has air outlet after an advance air port and, and the air channel trend of described radiator is consistent with the installation direction of described power switching modules。
Above-mentioned power model, wherein,
Described power model also includes an insulation board, and described insulation board is fixing with described base plate to be connected, and is positioned at the side relative with described electric capacity frame and described radiator；
The plurality of electric capacity is thin-film capacitor, and described thin-film capacitor has afterbody bolt, described base plate and described insulation board and is provided with the installing hole of correspondence to install the afterbody bolt of described thin-film capacitor。
In order to realize above-mentioned purpose better, this utility model additionally provides a kind of wind energy converter, and including fixing device and multiple power model, the plurality of power model is installed in parallel on described fixing device, and wherein, described power model is above-mentioned power model。
Above-mentioned wind energy converter, wherein, the DC terminal of the described direct current stack bus bar at each top being arranged at described power model is connected in parallel by a copper bar。
Above-mentioned wind energy converter, wherein, described fixing device includes slide rail and glidepath, the base plate of described power model is provided with insulation board, the top edge of described insulation board protrudes from the top margin of described base plate, and described power model is connected by the draw-in groove of the top edge of described insulation board with described upper slide rail；The lower edge of described insulation board protrudes from described base plate base and the flange with described base plate forms U-type groove, being additionally provided with front fixing hole in described U-type groove, described power model is installed by described U-type groove and is supported on described glidepath and is connected by described front fixing hole and described glidepath are fixing。
This utility model has the advantages that
1, base plate and electric capacity frame surround the cage metallic cavity of hollow out, and rear portion cavity can protect electric capacity, can dispel the heat to electric capacity again。Anterior cavity can protect holding wire and terminal, hides module cabling, and hollow part is also used as handle, convenient carrying。
2, the metal assembly that base plate, electric capacity frame, radiator form is fixed to one another, it is possible to improve the mechanical strength of power model, increases assembly precision, reduces the installation mechanical stress of power switching modules。
3, the direct current stack bus bar of power model is arranged on power model top, operating surface is installed closer to cabinet front, bolt can be directly contacted with hands when fixing bolt, lengthening tool that need not be special just can separate direct current stack bus bar and power model, avoid securing member in prior art to drop on power model or other devices of lower section easily cause short circuit, damage system risk。
4, power model DC side is connected with DC filter capacitor by the direct current stack bus bar at its top。Therefore, DC current in power model order is to flow through the multiple DC filter capacitor in stage casing from its top DC stack bus bar successively, then is pooled to the DC side of power switch, so makes to flow through the electric current of multiple electric capacity evenly。Therefore this utility model can realize the current-sharing arrangement of electric capacity, reduces the maximum electrical stress of single electric capacity, improves the mean free error time of system。
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail, but not as to restriction of the present utility model。
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model one embodiment power model；
Fig. 2 is the A direction view of Fig. 1；
Fig. 3 is the part-structure schematic diagram of this utility model one embodiment power model；
Fig. 4 is the structural representation of this utility model one embodiment installing rack；
Fig. 5 is the structural representation of this utility model one embodiment wind energy converter；
Fig. 6 is the decomposing schematic representation of this utility model one embodiment wind energy converter。
Wherein, accompanying drawing labelling
10 power models
1 installing rack
11 base plates
111 flanges
12 electric capacity framves
121 electric capacity installation portions
122 wire installation portions
2 electric capacity
21 afterbody bolts
3 power switching modules
4 radiators
41 air inlets
42 air outlets
5 insulation boards
6 direct current stack bus bars
61 DC terminal
7 exchange rows
8 copper bars
9 lead-out terminals
20 fixing devices
Slide rail on 201
202 glidepaths
Detailed description of the invention
It is described in detail below in conjunction with the accompanying drawing structural principle to the present invention and operation principle。
Referring to Fig. 1-Fig. 4, Fig. 1 is the structural representation of this utility model one embodiment power model, Fig. 2 is the A direction view of Fig. 1, and Fig. 3 is the part-structure schematic diagram of this utility model one embodiment power model, and Fig. 4 is the structural representation of this utility model one embodiment installing rack。Power model 10 of the present utility model, including installing rack 1, multiple electric capacity 2, at least one power switching modules 3 and radiator 4, described power switching modules 3 is arranged on described radiator 4, and wherein, described installing rack 1 comprises the steps that
Base plate 11, the bottom of described base plate 11 is provided with flange 111, and this flange 111 is used for supporting installation of heat radiator 4, it may be preferable to is a turnup structure, or is alternatively boss；
Electric capacity frame 12; it is fixed on the top of described base plate 11 and setting concordant with the top margin of described base plate 11; described electric capacity frame 12 includes electric capacity installation portion 121; described electric capacity installation portion 121 is provided with multiple electric capacity installing hole; the plurality of electric capacity 2 correspondence respectively is arranged in described electric capacity installing hole and is fixed on described base plate 11; thus protecting electric capacity 2 not collided with by transport installation, described radiator 4 is fixed between described electric capacity frame 12 and described flange 111；
Described base plate 11 and electric capacity frame 12 are preferably Sheet Metal Part, wherein, described electric capacity frame 12 also includes the wire installation portion 122 for the lead-out terminal 9 with wire installing fixing described power model 10, described electric capacity installation portion 13 is disposed adjacent with described wire installation portion 122, and in the present embodiment, electric capacity installation position is on rear side of wire installation portion。Signal conductor in power model 10 is each attached in the cavity of wire installation portion 122, and it is fixed on described base plate 11 with binding band, transport and installation and operation process will not exposed be collided with, described electric capacity installation portion 121 is engraved structure with described wire installation portion 122, and the engraved structure of cavity can give electric capacity 2 ventilation and heat。Described base plate 11 and electric capacity frame 12 are preferably connected with being combined into a framework entirety, constitute the cage construction of former and later two cavitys, surrounding hollow out。The frame place of the cavity of wire installation portion 122 can also, as handle, be used for installing transfer module。
Wherein, the DC side of described power switching modules 3 is connected by a direct current stack bus bar 6 with the both positive and negative polarity of the plurality of electric capacity 2, and the DC terminal 61 of described direct current stack bus bar 6 is arranged at the over top of described electric capacity frame 12, namely it is positioned at the top of whole power model 10。The AC of described power switching modules 3 and an exchange row 7 are connected, and described exchange row 7 is a soft copper row。The characteristic of soft copper row mainly has two, and base material is soft, is generally divided into multilayer laminated (being generally the specification of 0.1/1mm), the flexibility of its entirety, it is possible to eliminate build-up tolerance。
In the present embodiment, the top of described radiator 4 is fixing with the bottom of described electric capacity frame 12 to be connected, and the bottom of described radiator 4 is fixing with described flange 111 to be connected。Wherein, described radiator 4 is attached to bottom and the described flange 111 of described electric capacity frame 12 respectively by screw thread, and described electric capacity frame 12 invests described base plate 11 by screw fastening。Wherein, described radiator 4 has air outlet 42 behind an advance air port 41 and, and the air channel trend of described radiator 4 is consistent with the installation direction of described power switching modules 3。
In the present embodiment, this power switching modules 3 is preferably IGBT module, and this IGBT module is fixed by bolts on radiator 4；Electric capacity 2, through multiple electric capacity installing holes of described electric capacity frame 12, is fixed on described base plate 11 by bottom stud；The both positive and negative polarity of the DC side of IGBT and electric capacity 2 covers one piece of direct current stack bus bar 6 and pays with bolt lock。
Described power model may also include an insulation board 5, and described insulation board 5 is arranged on described base plate 11 and is positioned at the side relative with described electric capacity frame 12 and described radiator 4。Described base plate 11, electric capacity frame 12, radiator 4 are both preferably metalwork, and its machining accuracy opposing insulation plate 5 is high, therefore IGBT module is high with the assembly precision of electric capacity 2, and time IGBT module is connected by direct current stack bus bar 6 with the both positive and negative polarity of electric capacity 2, the mechanical stress of its wiring place is little。Especially when External Force Actings such as dropping shocks, the deformation of this utility model structural strength height is little, it is possible to the effectively direct current contact of protection IGBT module and electric capacity 2。
In the present embodiment, the plurality of electric capacity 2 is preferably thin-film capacitor, and described thin-film capacitor has afterbody bolt 21, described base plate 11 and described insulation board 5 is respectively arranged with the installing hole of correspondence to install the afterbody bolt 21 of described thin-film capacitor。
Referring to the structural representation that Fig. 5, Fig. 5 are this utility model one embodiment wind energy converter。Wind energy converter of the present utility model, including fixing device 20 and multiple power model 10, the plurality of power model 10 is installed in parallel on described fixing device 20。In the present embodiment, it may be preferable to for 2-6 power model 10, the direct current output copper bar 8 between power model 10 is together in parallel, namely the DC terminal 61 of each described direct current stack bus bar 6 being arranged at described power model 10 top is connected in parallel by a copper bar 8。
In the present embodiment, described fixing device 20 includes slide rail 201 and glidepath 202, the top edge of the insulation board 5 installed on the base plate 11 of described power model 10 protrudes from the top margin of described base plate 11, and described power model 10 is connected by the draw-in groove of the top edge of described insulation board 5 with described upper slide rail 201；The lower edge of described insulation board 5 protrudes from described base plate 11 base and the flange 111 with described base plate 11 forms U-type groove, being additionally provided with front fixing hole in described U-type groove, described power model 10 is installed by described U-type groove and is supported on described glidepath 202 and is connected by described front fixing hole is fixing with described glidepath 202。In the present embodiment, being push from front to back along air inlet 41 direction in power model 10 loading system, the insulation board 5 of power model 10 snaps in the draw-in groove of slide rail 201, and the U-type groove that the flange 111 of lower raft 11 is formed with insulation board 5 engages with glidepath 202。Being respectively equipped with fixed part in draw-in groove with U-type groove, when power model 10 has assembled with draw-in groove and U-type groove, fixed part can lock respectively through bolt。
Referring to the decomposing schematic representation that Fig. 6, Fig. 6 are this utility model one embodiment wind energy converter。Due to upper slide rail 201 structure of the present utility model, the DC side of power model 10 can pass through the copper bar 8 at top and be connected。Therefore, the order of the DC current in power model 10 is to flow through 9, stage casing thin-film capacitor from top DC stack bus bar 6, then be pooled to the DC side of IGBT module successively。So make to flow through the electric current of 9 electric capacity 2 evenly。This utility model can realize the current-sharing to electric capacity 2, reduces the maximum electrical stress of single electric capacity, improves the mean free error time of system。
Compared to the structure that the DC side of prior art is connected at module back, advantage of the present utility model is embodied in: install operating surface at power model top, closer to cabinet front, lengthening tool that need not be special just can separate direct current stack bus bar and power model, operating surface is moved on to module top, bolt can be directly contacted with hands when fixing bolt, overcome when direct current stack bus bar is when power model back, stop due to side module, when demounting bolt, staff can not touch bolt, bolt easily drops, module bottom is high tension apparatus, it is very easy to cause the risk of the system failure。
Certainly; this utility model also can have other various embodiments; when without departing substantially from this utility model spirit and essence thereof; those of ordinary skill in the art are when can make various corresponding change and deformation according to this utility model, but these change accordingly and deformation all should belong to the scope of the claims appended by this utility model。
Claims (10)
1. a power model, including installing rack, multiple electric capacity, at least one power switching modules and radiator, described power switching modules is arranged on described radiator, it is characterised in that described installing rack includes:
Base plate, the bottom of described base plate is provided with flange；
Electric capacity frame, it is fixed on the top of described base plate and setting concordant with the top margin of described base plate, described electric capacity frame includes electric capacity installation portion, described electric capacity installation portion is provided with multiple electric capacity installing hole, the plurality of electric capacity correspondence respectively is arranged in described electric capacity installing hole and is fixed on described base plate, and described radiator is fixed between described electric capacity frame and described flange；
Wherein, the DC side of described power switching modules is connected by a direct current stack bus bar with the both positive and negative polarity of the plurality of electric capacity, and the DC terminal of described direct current stack bus bar is arranged at the over top of described electric capacity frame。
2. power model as claimed in claim 1, it is characterised in that the AC of described power switching modules and an exchange row are connected, and described exchange row is a soft copper row。
3. power model as claimed in claim 1, it is characterized in that, described electric capacity frame also includes the wire installation portion for the lead-out terminal Yu wire installing fixing described power model, described electric capacity installation portion is disposed adjacent with described wire installation portion, and described electric capacity installation portion and described wire installation portion are engraved structure。
4. power model as claimed in claim 1, it is characterised in that the top of described radiator is fixing with the bottom of described electric capacity frame to be connected, and the bottom of described radiator is fixing with described flange to be connected。
5. power model as claimed in claim 4, it is characterised in that described radiator is attached to the bottom of described electric capacity frame and described flange respectively by screw thread, and described electric capacity frame invests described base plate by screw fastening。
6. the power model as described in claim 1,2,3,4 or 5, it is characterised in that described radiator has air outlet after an advance air port and, and the air channel trend of described radiator is consistent with the installation direction of described power switching modules。
7. the power model as described in claim 1,2,3,4 or 5, it is characterised in that
Described power model also includes an insulation board, and described insulation board is arranged on described base plate and is positioned at the side relative with described electric capacity frame and described radiator；
The plurality of electric capacity is thin-film capacitor, and described thin-film capacitor has an afterbody bolt, described base plate and be respectively arranged with the installing hole of correspondence on described insulation board to install the afterbody bolt of described thin-film capacitor。
8. a wind energy converter, including fixing device and multiple power model, the plurality of power model is installed in parallel on described fixing device, it is characterised in that described power model is the power model in the claims 1-7 described in any one。
9. wind energy converter as claimed in claim 8, it is characterised in that the DC terminal of described direct current stack bus bar is connected in parallel by a copper bar。
10. wind energy converter as claimed in claim 8 or 9, it is characterized in that, described fixing device includes slide rail and glidepath, the base plate of described power model is provided with insulation board, the top edge of described insulation board protrudes from the top margin of described base plate, and described power model is connected by the draw-in groove of the top edge of described insulation board with described upper slide rail；The lower edge of described insulation board protrudes from described base plate base and the flange with described base plate forms U-type groove, being additionally provided with front fixing hole in described U-type groove, described power model is installed by described U-type groove and is supported on described glidepath and is connected by described front fixing hole and described glidepath are fixing。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082598.8U CN205336092U (en) | 2016-01-27 | 2016-01-27 | Wind energy converter and power module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082598.8U CN205336092U (en) | 2016-01-27 | 2016-01-27 | Wind energy converter and power module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205336092U true CN205336092U (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620082598.8U Active CN205336092U (en) | 2016-01-27 | 2016-01-27 | Wind energy converter and power module thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN205336092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636565A (en) * | 2020-12-12 | 2021-04-09 | 青岛鼎信通讯股份有限公司 | Power electronic transformer inverter power unit module |
-
2016
- 2016-01-27 CN CN201620082598.8U patent/CN205336092U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636565A (en) * | 2020-12-12 | 2021-04-09 | 青岛鼎信通讯股份有限公司 | Power electronic transformer inverter power unit module |
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