CN205622220U - Intelligent cascade compensation protection device - Google Patents
Intelligent cascade compensation protection device Download PDFInfo
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- CN205622220U CN205622220U CN201620448956.2U CN201620448956U CN205622220U CN 205622220 U CN205622220 U CN 205622220U CN 201620448956 U CN201620448956 U CN 201620448956U CN 205622220 U CN205622220 U CN 205622220U
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- dsp chip
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- relay
- protection
- protection device
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- 230000005540 biological transmission Effects 0.000 description 5
- 230000000875 corresponding Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
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- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model provides an intelligent cascade compensation protection device, it is continuous with outlet relay's coil through protection DSP chip, it is continuous through the coil that starts the DSP chip and open dynamic relay, only work as outlet relay's auxiliary contact with open dynamic relay's auxiliary contact when equal closed, trigger the instruction output unit and just export and trigger the order, effectively avoided greatly having improved the reliability of cascade compensation protection action because sample data is unusual or single the unwanted operation of protection that the DSP chip leads to unusually.
Description
Technical field
This utility model relates to Series Compensation field, particularly to a kind of intelligent series compensation protection dress
Put.
Background technology
Series compensation as effectively extending super, extra-high voltage electrical distance and improving the important means of transmission capacity,
Vital effect has been played in bulk power grid runs.
Traditional series compensation protection device, takes single-channel sampling data loop and single DSP to start string benefit and protects
Protecting the mode of outlet, once sampled data or the abnormal false protection that will cause of single dsp board, cause string
Mend device to release and run, to maintaining bulk power transmission circuit stable operation to bury potential safety hazard, and reduce super,
The transmission capacity of UHV transmission line.
Therefore prior art exists the problem that series compensation protection act reliability is low.
Utility model content
This utility model provides a kind of intelligent series compensation protection device, to solve prior art series compensation
The problem that protection act reliability is low.
For realizing described purpose, the technical scheme that the application provides is as follows:
A kind of intelligent series compensation protection device, including:
Electronic current mutual inductor, the input of described electronic current mutual inductor is that described intelligent series connection is mended
Repay the input of protection device；
Combining unit, the outfan phase of the input of described combining unit and described electronic current mutual inductor
Even；
Protection dsp chip, the input of described protection dsp chip and an output of described combining unit
End is connected；
Starting dsp chip, another of the input of described startup dsp chip and described combining unit is defeated
Go out end to be connected；
Exit relay, the coil of described exit relay is connected with the outfan of described protection dsp chip；
Starting relay, the coil of described starting relay is connected with the outfan of described startup dsp chip；
When the auxiliary contact of described exit relay and the auxiliary contact of described starting relay all close, defeated
Go out the trigger command output unit of trigger command, the input of described trigger command output unit and described outlet
The auxiliary contact of relay and the auxiliary contact of described starting relay are connected in series；Described trigger command exports
The outfan of unit is the outfan of described intelligent series compensation protection device.
Preferably, the input of described combining unit is by the output of optical fiber with described electronic current mutual inductor
End is connected；Two outfans of described combining unit defeated by optical fiber and described protection dsp chip respectively
Enter end to be connected with the input of described startup dsp chip.
Preferably, described protection dsp chip is also connected with described startup dsp chip.
Preferably, also include: controller；The input of described controller respectively with described protection DSP core
Sheet is connected with described startup dsp chip, the outfan of described controller respectively with described exit relay and
Described starting relay is connected.
Preferably, also include: receive the input block of external input signal；Two of described input block defeated
Go out end to be connected with described protection dsp chip and described startup dsp chip respectively.
This utility model provide described intelligent series compensation protection device, by protection dsp chip with
The coil of exit relay is connected, and is connected with the coil of starting relay, only by starting dsp chip
When the auxiliary contact of described exit relay and the auxiliary contact of described starting relay all close, trigger life
Make output unit just export trigger command, effectively prevent due to sampled data exception or single dsp chip
Extremely the false protection caused, greatly improves the reliability of series compensation protection act.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in this utility model embodiment or prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments more of the present utility model, comes for those of ordinary skill in the art
Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the intelligent series compensation protection device that this utility model embodiment provides；
Fig. 2 is another knot of the intelligent series compensation protection device that another embodiment of this utility model provides
Structure schematic diagram；
Fig. 3 is another knot of the intelligent series compensation protection device that another embodiment of this utility model provides
Structure schematic diagram；
Fig. 4 is another knot of the intelligent series compensation protection device that another embodiment of this utility model provides
Structure schematic diagram.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with attached
Detailed description of the invention of the present utility model is described in detail by figure.
This utility model provides a kind of intelligent series compensation protection device, to solve prior art series compensation
The problem that protection act reliability is low.
Concrete, described intelligent series compensation protection device, as it is shown in figure 1, include:
Electronic current mutual inductor 101, the input of electronic current mutual inductor 101 is described intelligent string
Connection compensates the input of protection device；
The outfan of combining unit 102, the input of combining unit 102 and electronic current mutual inductor 101
It is connected；
Protection dsp chip 103, the input of protection dsp chip 103 and one of combining unit 102
Outfan is connected；
Start dsp chip 104, start another of input and combining unit 102 of dsp chip 104
Individual outfan is connected；
Exit relay 105, the coil of exit relay 105 and the outfan phase protecting dsp chip 103
Even；
Starting relay 106, the coil of starting relay 106 and the outfan phase starting dsp chip 104
Even；
Trigger command output unit 107, the input of trigger command output unit 107 and exit relay 105
Auxiliary contact and the auxiliary contact of starting relay 106 be connected in series；Trigger command output unit 107
The outfan that outfan is described intelligent series compensation protection device.
In concrete actual application, the auxiliary contact of exit relay 105 and starting relay 106 auxiliary
After helping contact to connect, it is connected with power supply, is not specifically limited herein.
Concrete operation principle is:
Electronic current mutual inductor 101 carries out current sample to the sampled point in series compensation device；And pass through
Combining unit 102 is transmitted to protect dsp chip 103 and start dsp chip 104；When protection DSP core
Sheet 103 and when starting the equal action of protection of dsp chip 104 correspondence, controls exit relay 105 respectively
Obtain electric with the coil of starting relay 106, and then the auxiliary contact of exit relay 105 and startup are continued
The auxiliary contact of electrical equipment 106 all close；Auxiliary contact and starting relay 106 when exit relay 105
Auxiliary contact when all closing, trigger command output unit 107 will export trigger command, it is achieved for described
The protection of series compensation device.
The described intelligent series compensation protection device that the present embodiment provides, by protection dsp chip 103
It is connected with the coil of exit relay 105, by starting dsp chip 104 and starting relay 106
Coil is connected, only equal when the auxiliary contact of exit relay 105 and the auxiliary contact of starting relay 106
During Guan Bi, trigger command output unit 107 just exports trigger command, effectively prevent owing to sampled data is different
The abnormal false protection caused of normal or single dsp chip, greatly improve series compensation protection act can
By property.
Preferably, the input of combining unit 102 is by the output of optical fiber with electronic current mutual inductor 101
End is connected；Two outfans of combining unit 102 pass through optical fiber respectively and protect the defeated of dsp chip 103
Enter end to be connected with the input starting dsp chip 104.
The sampled data of electronic current mutual inductor 101 output, through fiber-optic transfer to combining unit 102, is closed
And unit 102 is by two-way optical fiber circuit, it is respectively sent to sampled data protect dsp chip 103 He
Start dsp chip 104, the quick transmission of the most described sampled data.
In concrete actual application, the agreement that above-mentioned fiber-optic transfer is used can use intelligent station character,
Combining unit 102 is also corresponding uses intelligence combining unit, for one preferably application scheme；Certainly, this
Place is not specifically limited, can be depending on the applied environment that it is concrete.
In another embodiment of this utility model, on the basis of Fig. 1, as in figure 2 it is shown, protection DSP
Chip 103 is also connected with startup dsp chip 104.
When after the protection dsp chip 103 equal action of protection corresponding with starting dsp chip 104, protect
By mutually transmitting actuating signal between dsp chip 103 and startup dsp chip 104, inform that both sides are
Action, can be as the reference of both sides' action.
It addition, as it is shown on figure 3, described intelligent series compensation protection device also includes: controller 108；
The input of controller 108 is connected with protection dsp chip 103 and startup dsp chip 104 respectively, control
The outfan of device 108 processed is connected with exit relay 105 and starting relay 106 respectively.
When after the protection dsp chip 103 equal action of protection corresponding with starting dsp chip 104, protect
By mutually transmitting actuating signal between dsp chip 103 and startup dsp chip 104, inform that both sides are
Action, then can inform controller 108, controller 108 malfunction now be carried out computing,
Control exit relay 105 and starting relay 106 performs the contents such as series compensation protection act.
In another embodiment of this utility model, on the arbitrary shown basis of Fig. 1 to Fig. 3, such as Fig. 4
Shown in, described intelligent series compensation protection device also includes: receive the input block of external input signal
109；Two outfans of input block 109 respectively with protection dsp chip 103 and startup dsp chip
104 are connected.
When being opened into carrying out action command by outside, then should open respectively into two dsp chips, could perform
Above-mentioned steps, difference is that above-described embodiment is protection dsp chip 103 and starts dsp chip 104 respectively
Differentiate operation condition according to sampled data voluntarily, and outside is opened into for receiving external input signal, as gap is touched
The action command sent out.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is
With the difference of other embodiments, between each embodiment, identical similar portion sees mutually.
The above, be only preferred embodiment of the present utility model, not makees this utility model any
Pro forma restriction.Although this utility model is disclosed above with preferred embodiment, but it is not limited to
This utility model.Any those of ordinary skill in the art, without departing from technical solutions of the utility model scope
In the case of, technical solutions of the utility model are made many by the method and the technology contents that all may utilize the disclosure above
Possible variation and modification, or it is revised as the Equivalent embodiments of equivalent variations.Therefore, every without departing from this reality
By the content of new technique scheme, according to technical spirit of the present utility model to made for any of the above embodiments any
Simple modification, equivalent variations and modification, all still fall within the range of technical solutions of the utility model protection.
Claims (5)
1. an intelligent series compensation protection device, it is characterised in that including:
Electronic current mutual inductor, the input of described electronic current mutual inductor is that described intelligent series connection is mended
Repay the input of protection device；
Combining unit, the outfan phase of the input of described combining unit and described electronic current mutual inductor
Even；
Protection dsp chip, the input of described protection dsp chip and an output of described combining unit
End is connected；
Starting dsp chip, another of the input of described startup dsp chip and described combining unit is defeated
Go out end to be connected；
Exit relay, the coil of described exit relay is connected with the outfan of described protection dsp chip；
Starting relay, the coil of described starting relay is connected with the outfan of described startup dsp chip；
When the auxiliary contact of described exit relay and the auxiliary contact of described starting relay all close, defeated
Go out the trigger command output unit of trigger command, the input of described trigger command output unit and described outlet
The auxiliary contact of relay and the auxiliary contact of described starting relay are connected in series；Described trigger command exports
The outfan of unit is the outfan of described intelligent series compensation protection device.
Intelligent series compensation protection device the most according to claim 1, it is characterised in that described
The input of combining unit is connected with the outfan of described electronic current mutual inductor by optical fiber；Described merging
Two outfans of unit are respectively by optical fiber and the input of described protection dsp chip and described startup
The input of dsp chip is connected.
Intelligent series compensation protection device the most according to claim 1, it is characterised in that described
Protection dsp chip is also connected with described startup dsp chip.
4., according to the arbitrary described intelligent series compensation protection device of claims 1 to 3, its feature exists
In, also include: controller；The input of described controller respectively with described protection dsp chip and described
Start dsp chip be connected, the outfan of described controller respectively with described exit relay and described startup
Relay is connected.
5., according to the arbitrary described intelligent series compensation protection device of claims 1 to 3, its feature exists
In, also include: receive the input block of external input signal；Two outfans of described input block are respectively
It is connected with described protection dsp chip and described startup dsp chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448956.2U CN205622220U (en) | 2016-05-17 | 2016-05-17 | Intelligent cascade compensation protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448956.2U CN205622220U (en) | 2016-05-17 | 2016-05-17 | Intelligent cascade compensation protection device |
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| Publication Number | Publication Date |
|---|---|
| CN205622220U true CN205622220U (en) | 2016-10-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620448956.2U Active CN205622220U (en) | 2016-05-17 | 2016-05-17 | Intelligent cascade compensation protection device |
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| CN (1) | CN205622220U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465167A (en) * | 2017-07-10 | 2017-12-12 | 中国南方电网有限责任公司超高压输电公司梧州局 | A kind of string that can effectively prevent malfunction judged based on zero-sequence current mends guard method |
| CN110277762A (en) * | 2019-06-05 | 2019-09-24 | 国家电网有限公司 | The differential protection locking system and method for electronic mutual inductor data acquisition abnormity |
-
2016
- 2016-05-17 CN CN201620448956.2U patent/CN205622220U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465167A (en) * | 2017-07-10 | 2017-12-12 | 中国南方电网有限责任公司超高压输电公司梧州局 | A kind of string that can effectively prevent malfunction judged based on zero-sequence current mends guard method |
| CN107465167B (en) * | 2017-07-10 | 2019-02-05 | 中国南方电网有限责任公司超高压输电公司梧州局 | A kind of string benefit guard method for effectivelying prevent malfunction based on zero-sequence current judgement |
| CN110277762A (en) * | 2019-06-05 | 2019-09-24 | 国家电网有限公司 | The differential protection locking system and method for electronic mutual inductor data acquisition abnormity |
| CN110277762B (en) * | 2019-06-05 | 2021-04-20 | 国家电网有限公司 | Differential protection locking system and method for data acquisition abnormity of electronic transformer |
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