CN203607180U - Resistor and converter protective device - Google Patents
Resistor and converter protective device Download PDFInfo
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- CN203607180U CN203607180U CN201320773325.4U CN201320773325U CN203607180U CN 203607180 U CN203607180 U CN 203607180U CN 201320773325 U CN201320773325 U CN 201320773325U CN 203607180 U CN203607180 U CN 203607180U
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- resistor
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- 230000001681 protective effect Effects 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 229910000521 B alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- SYHGEUNFJIGTRX-UHFFFAOYSA-N methylenedioxypyrovalerone Chemical compound C=1C=C2OCOC2=CC=1C(=O)C(CCC)N1CCCC1 SYHGEUNFJIGTRX-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The embodiment of the utility model discloses a resistor and a converter protective device. The resistor comprises at least two resistance energy units and a fixed part, wherein the at least two resistance energy units are independently distributed on a mounting plate and are fixed on the mounting plate by virtue of the fixed part so as to form a resistance box, and pins of the at least two resistance energy units stretch from the side surfaces of the resistance box. The resistor has the advantages that the structure is simple and compact, is convenient to layout and is beneficial to installation and maintenance, meanwhile the cabinet space of a converter is saved, in addition, and the resistance and energy provided by the resistor are not fixed, and can be changed by the converter protective device according to the actual demand by virtue of the internal connection relation.
Description
Technical field
The utility model relates to wind power generation and unsteady flow field, particularly relates to a kind of resistor and current transformer protective device.
Background technology
Along with the development of New Energy Industry, wind power generation improves year by year as a kind of clean energy resource shared ratio and total amount in electrical network.The current transformer that existing wind-driven generator utilizes has two types, one is double-fed converter, it utilizes Crowbar circuit, carry out bypass rotor-side converter by Crowbar resistance short circuit rotor winding, use DC chopper circuit simultaneously, discharge bus energy by DC chopped-wave resistance (Chopper resistance), keep the safe operation of the stable and equipment of busbar voltage.Another kind is total power converter, and it utilizes DC chopped-wave resistance (Chopper resistance) to discharge bus energy, keeps the safe operation of the stable and equipment of busbar voltage.
Because Crowbar resistance and DC chopped-wave resistance are independent individuality, dispose separately the space layout being unfavorable in double-feed current transformer, and assembling and failure monitoring all cumbersome.In addition, the also difference of resistance sizes that the current transformer of different capacity grade is required, so often need to change different big or small resistance to meet current transformer demand.
Utility model content
In order to solve the problems of the technologies described above, a kind of resistor and current transformer protective device are provided in the utility model, have that simple in structure, reliability is strong, installation and a failure monitoring advantage easily.
The utility model embodiment discloses following technical scheme:
First aspect, the utility model provides a kind of resistor, and described resistor comprises:
At least two resistance energy units and fixture;
Described at least two resistance energy unit independent distribution, on mounting panel, and are fixed on a resistor of mounting panel composition by described fixture;
Described at least two resistance energy units stretch out pin from described resistor side.
Preferably, described at least two resistance energy units adopt identical material, and described material comprises:
Sheet metal, pottery, B alloy wire, alloy sheet.
Preferably, the structure of described at least two resistance energy units is identical;
Resistance energy unit comprises: a resistive element or the series connection of multiple resistive element or the parallel connection of multiple resistance or multiple resistance connection in series-parallel.
Second aspect the utility model also provides a kind of current transformer protective device, comprising:
Resistor that at least one above-mentioned first aspect provides, exchange Crowbar device and DC chopped-wave device;
Described interchange Crowbar device is connected with described resistor with described DC chopped-wave device;
Described interchange Crowbar device selects any or multiple resistance energy unit in described resistor to be connected according to required resistance sizes and energy size;
Described DC chopped-wave device selects any or multiple resistance energy unit in described resistor to be connected according to required resistance sizes and energy size.
Preferably, in the time that described device comprises a resistor,
Described interchange Crowbar device is all connected in any mode in series, parallel or connection in series-parallel with resistance energy unit in described resistor with described DC chopped-wave device.
Preferably, in the time that described device comprises a resistor,
Described resistor is positioned at the centre position of described interchange Crowbar device and described DC chopped-wave device.
Preferably, in the time that described device comprises at least two resistors,
Described interchange Crowbar device is connected from different resistors respectively with described DC chopped-wave device;
Described interchange Crowbar device is connected in any mode in series, parallel or connection in series-parallel with resistance energy unit in institute contact resistance device;
Described DC chopped-wave device is connected in any mode in series, parallel or connection in series-parallel with resistance energy unit in institute contact resistance device.
Preferably, between the insulated type bipolar transistor in described interchange Crowbar device and described resistor, be connected by cable.
The third aspect, the utility model also provides a kind of current transformer protective device, comprising:
As resistor and DC chopped-wave device that above-mentioned first aspect provided;
Described DC chopped-wave device is connected with resistance energy unit in described resistor.
Preferably, described DC chopped-wave device is connected with any resistance energy unit in described resistor; Or,
Described DC chopped-wave device is in parallel with at least two resistance energy units in described resistor; Or,
Described DC chopped-wave device is connected with series-parallel form with at least three resistance energy units in described resistor.
As can be seen from the above-described embodiment, a kind of resistor that the utility model provides and current transformer protective device, this resistor comprises at least two resistance energy units and fixture; Described at least two resistance energy unit independent distribution, on mounting panel, and are fixed on a resistance box of mounting panel composition by described fixture; Described at least two resistance energy units stretch out pin from described resistance box side.The simple compactness of this resistor structure is convenient to layout; be conducive to install, safeguard; save the cabinet space of current transformer simultaneously; in addition; available resistance and the energy of this resistor are not fixed, and current transformer protective device can change resistance and the energy that this resistor provides according to actual resistance and the inner annexation of energy requirement utilization.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structure chart of the utility model embodiment resistor;
Fig. 2 is the structure chart of the utility model embodiment resistance energy unit embodiment 1;
Fig. 3 is the structure chart of the utility model embodiment resistance energy unit embodiment 2;
Fig. 4 is the structure chart of the utility model embodiment resistance energy unit embodiment 3;
Fig. 5 is the structure chart of the utility model embodiment current transformer protective device embodiment 1;
Fig. 6 is the structure chart of the utility model embodiment current transformer protective device embodiment 2.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the utility model embodiment is described in detail.
Consult Fig. 1, the structure chart of the utility model embodiment resistor illustrating, this resistor can comprise:
At least two resistance energy units and fixture;
Described at least two resistance energy unit independent distribution, on mounting panel, and are fixed on a resistor of mounting panel composition by described fixture;
Described at least two resistance energy units stretch out pin from described resistor side.
In actual production and design process, in order to be lowered into product cost, can adopt the resistance of unified material, preferred, described at least resistance energy unit can adopt identical material, and described material comprises: sheet metal, pottery, B alloy wire, alloy sheet.
For the ease of producing, resistance energy unit can adopt same structure, and preferred, the structure of described at least two resistance energy units is identical;
Resistance energy unit comprises: a resistive element or the series connection of multiple resistive element or the parallel connection of multiple resistance or multiple resistance connection in series-parallel.
Certainly, at least resistance energy unit in described resistor can adopt different structures.Such as: resistor comprises two resistance energy units, the first resistance energy unit and the second resistance energy unit, the first resistance energy unit can comprise multiple resistive element series connection, the second resistance energy unit can comprise multiple resistive element parallel connections.Certainly, can be also other structures, do not illustrate one by one at this.
Can find out by above-described embodiment; the simple compactness of resistor structure that the utility model embodiment provides is convenient to layout; be conducive to install, safeguard; save the cabinet space of current transformer simultaneously; available resistance and the energy of this resistor are not fixed, and make current transformer protective device can utilize according to the actual requirements inner annexation to change resistance and energy that this resistor provides.
The utility model embodiment provides the implementation of the resistance energy unit in above-mentioned resistor, consults three kinds of structure charts of the utility model embodiment resistance energy unit shown in Fig. 2～4; Respectively the structure of resistance energy unit is explained according to this three width accompanying drawing below.
Resistance energy unit shown in Fig. 2 can comprise multiple resistive elements, and multiple resistive elements can be connected, and independently existing after series connection, has multipair pin to stretch out.
Resistance energy unit shown in Fig. 3 can comprise multiple resistive elements, and multiple resistive elements are existence in parallel again after can connecting, and has pair of pins to stretch out.
Resistance energy unit shown in Fig. 4 can comprise multiple resistive elements, and multiple resistive element series connection are rear in parallel, then the existence in parallel of the resistance of parallel connection after connecting with multiple resistive elements, has pair of pins to stretch out.
Resistor can be according to the actual requirements according to above-mentioned any form layout of three kinds of structures, certainly can be according to resistance value and energy size requirement, change series-parallel annexation of resistance energy unit internal resistance element.
The utility model embodiment also provides the execution mode of current transformer protective device, consults Fig. 5, the structure chart of the current transformer protective device embodiment 1 illustrating, and this electric current device protective device is double-feed current transformer protective device, this device can comprise:
At least one resistor, interchange Crowbar device and DC chopped-wave device as described in above-mentioned resistor embodiment;
Described interchange Crowbar device is connected with described resistor with described DC chopped-wave device;
Described interchange Crowbar device selects any or multiple resistance energy unit in described resistor to be connected according to required resistance sizes and energy size;
Described DC chopped-wave device selects any or multiple resistance energy unit in described resistor to be connected according to required resistance sizes and energy size.
Fig. 5 only explains with the form that comprises a resistor, connection heavy black line in Fig. 5, represent that described interchange Crowbar device all can be connected with a pair of or multipair pin of described resistor with described DC chopped-wave device, to meet actual resistance and energy requirement.
Preferably, in the time that described device comprises a resistor, described interchange Crowbar device is all connected in any mode in series, parallel or connection in series-parallel with resistance energy unit in described resistor with described DC chopped-wave device.
For the ease of circuit layout, preferred, in the time that described device comprises a resistor, described resistor is positioned at the centre position of described interchange Crowbar device and described DC chopped-wave device.
Preferably, in the time that described device comprises at least two resistors,
Described interchange Crowbar device is connected from different resistors respectively with described DC chopped-wave device;
Described interchange Crowbar device is connected in any mode in series, parallel or connection in series-parallel with resistance energy unit in institute contact resistance device;
Described DC chopped-wave device is connected in any mode in series, parallel or connection in series-parallel with resistance energy unit in institute contact resistance device.
Preferably, between the insulated type bipolar transistor in described interchange Crowbar device and described resistor, be connected by cable.
Such as: when resistor comprises 20 resistance energy units, each resistance energy unit comprises one 0.1 ohm, the resistive element of energy 100 kJ (kilojoule)s, and this resistor has 20 pairs of pins; According to the actual requirements the annexation between described interchange Crowbar device and described DC chopped-wave device and described resistor is explained below.
When described interchange Crowbar device needs to provide the resistance of 1 ohm of resistance value, energy 1 megajoule to provide service for it, need to select the 10 pairs of pins of any selection in described resistor, form with series connection connects, and this resistor can provide 1 ohm, the resistance of energy 1 megajoule for it.
When described DC chopped-wave device needs to provide the resistance of 0.05 ohm of resistance value, energy 200 kJ (kilojoule)s to provide service for it, need first to select any 2 pairs of pins in described resistor to connect with form in parallel, this resistor can provide 0.05 ohm, the resistance of energy 200 kJ (kilojoule)s for it.
Visible described interchange Crowbar device and described DC chopped-wave device all can be according to the demand of actual resistance value and energy by changing the annexation between described resistor, so that this resistor provides for it the resistance value and the energy that satisfy the demands.
Can find out by above-described embodiment: the utility model embodiment double-feed current transformer protective device can be by described resistor simultaneously for described interchange Crowbar device and described DC chopped-wave device provide resistance; carry out by the annexation changing between resistor the resistance sizes that regulating resistor provides; this device can effectively reduce costs, be beneficial to installation, safeguard, save cabinet space simultaneously.
The utility model embodiment also provides a kind of execution mode of current transformer protective device, consults Fig. 6, the structure chart of the current transformer protective device embodiment 2 illustrating, and this electric current device protective device is full power convertor protective device, this device can comprise:
Resistor and DC chopped-wave device as described in above-mentioned resistor embodiment;
Described DC chopped-wave device is connected with resistance energy unit in described resistor.
Preferably, described DC chopped-wave device is connected with any resistance energy unit in described resistor; Or described DC chopped-wave device is in parallel with at least two resistance energy units in described resistor; Or described DC chopped-wave device is connected with series-parallel form with at least three resistance energy units in described resistor.
Can find out by above-described embodiment: the utility model embodiment full power convertor protective device can change resistance sizes and the energy size that this resistor provides by the annexation that changes resistance energy unit in DC chopped-wave device and resistor; to meet required resistance and the energy requirement of DC chopped-wave device in the full power convertor of different capacity grade, avoid changing resistance.
The foregoing is only preferred implementation of the present utility model, do not form the restriction to the utility model protection range.Any any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection range of the present utility model.
Claims (10)
1. a resistor, is characterized in that, described resistor comprises:
At least two resistance energy units and fixture;
Described at least two resistance energy unit independent distribution, on mounting panel, and are fixed on a resistor of mounting panel composition by described fixture;
Described at least two resistance energy units stretch out pin from described resistor side.
2. resistor according to claim 1, is characterized in that,
Described at least two resistance energy units adopt identical material, and described material comprises: sheet metal, pottery, B alloy wire, alloy sheet.
3. resistor according to claim 1, is characterized in that,
The structure of described at least two resistance energy units is identical;
Resistance energy unit comprises: a resistive element or the series connection of multiple resistive element or the parallel connection of multiple resistance or multiple resistance connection in series-parallel.
4. a current transformer protective device, is characterized in that, comprising:
At least one resistor, interchange Crowbar device and DC chopped-wave device as described in claim 1 ￣ 3 any one;
Described interchange Crowbar device is connected with described resistor with described DC chopped-wave device;
Described interchange Crowbar device selects any or multiple resistance energy unit in described resistor to be connected according to required resistance sizes and energy size;
Described DC chopped-wave device selects any or multiple resistance energy unit in described resistor to be connected according to required resistance sizes and energy size.
5. device according to claim 4, is characterized in that, in the time that described device comprises a resistor,
Described interchange Crowbar device is all connected in any mode in series, parallel or connection in series-parallel with resistance energy unit in described resistor with described DC chopped-wave device.
6. device according to claim 4, is characterized in that, in the time that described device comprises a resistor,
Described resistor is positioned at the centre position of described interchange Crowbar device and described DC chopped-wave device.
7. device according to claim 4, is characterized in that, in the time that described device comprises at least two resistors,
Described interchange Crowbar device is connected from different resistors respectively with described DC chopped-wave device;
Described interchange Crowbar device is connected in any mode in series, parallel or connection in series-parallel with resistance energy unit in institute contact resistance device;
Described DC chopped-wave device is connected in any mode in series, parallel or connection in series-parallel with resistance energy unit in institute contact resistance device.
8. device according to claim 4, is characterized in that, comprising:
Between insulated type bipolar transistor in described interchange Crowbar device and described resistor, be connected by cable.
9. a current transformer protective device, is characterized in that, comprising:
Resistor as described in claim 1～3 any one and DC chopped-wave device;
Described DC chopped-wave device is connected with resistance energy unit in described resistor.
10. device according to claim 9, is characterized in that, comprising:
Described DC chopped-wave device is connected with any resistance energy unit in described resistor; Or,
Described DC chopped-wave device is in parallel with at least two resistance energy units in described resistor; Or,
Described DC chopped-wave device is connected with series-parallel form with at least three resistance energy units in described resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320773325.4U CN203607180U (en) | 2013-11-28 | 2013-11-28 | Resistor and converter protective device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320773325.4U CN203607180U (en) | 2013-11-28 | 2013-11-28 | Resistor and converter protective device |
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| Publication Number | Publication Date |
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| CN203607180U true CN203607180U (en) | 2014-05-21 |
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| CN201320773325.4U Expired - Lifetime CN203607180U (en) | 2013-11-28 | 2013-11-28 | Resistor and converter protective device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029060A (en) * | 2019-12-03 | 2020-04-17 | 河南平高通用电气有限公司 | Discharge resistor discharging device and direct current charging pile |
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2013
- 2013-11-28 CN CN201320773325.4U patent/CN203607180U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029060A (en) * | 2019-12-03 | 2020-04-17 | 河南平高通用电气有限公司 | Discharge resistor discharging device and direct current charging pile |
| CN111029060B (en) * | 2019-12-03 | 2022-06-14 | 河南平高通用电气有限公司 | Discharge resistor discharging device and direct current charging pile |
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Granted publication date: 20140521 |
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| CX01 | Expiry of patent term |