CN207475174U - A kind of coincidence brake control device of breaker - Google Patents
A kind of coincidence brake control device of breaker Download PDFInfo
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- CN207475174U CN207475174U CN201721232434.XU CN201721232434U CN207475174U CN 207475174 U CN207475174 U CN 207475174U CN 201721232434 U CN201721232434 U CN 201721232434U CN 207475174 U CN207475174 U CN 207475174U
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Abstract
The utility model embodiment discloses a kind of coincidence brake control device of breaker, which includes：On-off signal plug-in unit, exchange input plug-in unit and Digital Signal Processing DSP plug-in units；Above-mentioned plug-in unit is connected by bus；On-off signal plug-in unit; it is opened for receiving two groups of sequential trips into signal; first group of sequential trip, which opens signal and come from the sequential trips of the line protective devices of first line in 3/2 mode of connection, outputs signal, and second group of sequential trip, which opens signal and come from the sequential trips of the line protective devices of the second circuit in 3/2 mode of connection, outputs signal；Exchange input plug-in unit, for receiving two groups of three-phase voltages, first group of three-phase voltage comes from the voltage transformer output of first line, and second group of three-phase voltage comes from the voltage transformer output of the second circuit；DSP plug-in units act for being opened according to two groups of sequential trips into signal and the reclosing of two groups of three-phase voltage control first line and the second circuit.The device can realize the correct action of faulty line reclosing.
Description
Technical field
The utility model is related to a kind of controls of the reclosing of field of relay protection in power more particularly to breaker to fill
It puts.
Background technology
500kV Substation Bus Arrangements are existing for the switch disconnector in line line string generally using 3/2 wiring at present
The coincidence brake control device 10 of breaker, as shown in Figure 1, its exchange input plug-in unit 110 is generally used for receiving one group of three-phase voltage
With one group of single-phase voltage, On-off signal plug-in unit 120 is generally used for receiving one be merged by external Multicomponent phase trip signal
Group sequential trip is opened into signal；Wherein, one group of three-phase voltage that exchange input plug-in unit receives comes from a certain line of line line string
Road (being denoted as first line) comes from the line by the transformed three-phase voltage of voltage transformer, another group of single-phase voltage of reception
Another circuit (being denoted as the second circuit) of line string passes through the transformed a certain phase of voltage transformer or a certain voltage between phases；Number
Signal processing (DSP, Digital Signal Processing) plug-in unit 130 is used for received according to On-off signal plug-in unit one
Group sequential trip is opened judges whether there is line failure into signal.If breaker is located at Power Plant Side substation, when the open circuit
The sequential trip that the coincidence brake control device 10 of device receives is opened into signal when being 1, and DSP plug-in units have determined line failure, this
When generally require the offside breaker of the faulty line and first overlap, then, the closing control device 10 that originally stresses of faulty line is examined
Whether the three-phase voltage virtual value on survey line road is higher than preset reference value, if the virtual value of any phase voltage is less than the reference value,
Then think the offside unsuccessful reclosing of the faulty line, the combined floodgate that originally stresses of the faulty line does not allow to act.In such case
Under, existing breaker overlaps possibility of the brake control device 10 there are following malfunction or tripping：
(1) when first line normal operation and during the second circuit permanent fault, the offside unsuccessful reclosing of the second circuit,
Its three-phase voltage cannot be restored to higher than reference value after permanent fault occurs for the second circuit, and the second circuit originally stresses to close a floodgate this
Should not act, still, due to above-mentioned breaker coincidence brake control device 10 DSP plug-in units 130 detect be first line
Three-phase voltage, therefore the DSP plug-in units 130 for overlapping brake control device 10 indicate that second circuit originally stresses feed motion, so as to
Lead to the second circuit originally stresses malfunction of closing a floodgate.
(2) when first line is out of service, the DSP plug-in units 130 of the coincidence brake control device 10 of above-mentioned breaker detect
To circuit three-phase voltage be consistently lower than reference value, if at this time the second circuit occur transient fault, the offside energy of the second circuit
Enough reclosing success, still, since the circuit three-phase voltage that above-mentioned DSP plug-in units 130 detect is consistently lower than reference value, again
The combined floodgate that originally stresses for indicating the second circuit is failure to actuate by the DSP plug-in units 130 of closing control device 10, so as to cause the second circuit
Originally stress combined floodgate tripping.
Invention content
In order to solve the above technical problems, the utility model embodiment is intended to provide a kind of reclosing control dress of breaker
It puts, it is intended to it can correctly identify faulty line and non-fault line, it is real so as to judge whether faulty line three-phase has pressure
The correct action of the reclosing of existing faulty line.
What the technical solution of the utility model was realized in：
The utility model provides a kind of coincidence brake control device of breaker, and described device includes：On-off signal is inserted
Part, exchange input plug-in unit and Digital Signal Processing DSP plug-in units；The On-off signal plug-in unit, exchange input plug-in unit and DSP plug-in units
Between connected by bus；Wherein,
The On-off signal plug-in unit is opened for receiving two groups of sequential trips into signal；Two groups of sequential trips open into
First group of sequential trip in signal opens the split-phase that signal comes from the line protective devices of first line in 3/2 mode of connection
Signal is outputed in tripping, and second group of sequential trip that two groups of sequential trips are opened in signal is opened comes from described 3/2 into signal
The sequential trip of the line protective devices of the second circuit outputs signal in the mode of connection；
The exchange input plug-in unit, for receiving two groups of three-phase voltages；First group of three-phase in two groups of three-phase voltages
The voltage transformer that voltage comes from the first line exports, and second group of three-phase voltage in two groups of three-phase voltages comes from
It is exported in the voltage transformer of second circuit；
The DSP plug-in units control institute for being opened according to two groups of sequential trips into signal and two groups of three-phase voltages
State the reclosing action of first line and second circuit.
In said program, the DSP plug-in units are specifically used for：
The two groups of sequential trips received according to the On-off signal plug-in unit are opened into signal from the first line and described
Faulty line is determined in second circuit；
It is preset that the two groups of three-phase voltages received according to the exchange input plug-in unit determine whether the faulty line meets
There is press strip part；
When the faulty line is any circuit in the first line and second circuit and the faulty line
Meet preset when having press strip part, indicate that the faulty line carries out reclosing action；
When the faulty line is any circuit in the first line and second circuit and the faulty line
It is unsatisfactory for preset when having press strip part, the faulty line is forbidden to carry out reclosing action.
In said program, the DSP plug-in units are additionally operable to：
When the first line and second circuit are faulty line, the DSP plug-in units are latched the First Line
Road and the reclosing function of second circuit.
In said program, the DSP plug-in units are specifically used for：
It opens when first group of sequential trip that the On-off signal plug-in unit receives and is opened into signal for 1 and second group of sequential trip
Enter signal for 0 when, determine the first line be faulty line；
It opens when second group of sequential trip that the On-off signal plug-in unit receives and is mutually jumped for 1 and first component into signal
Lock open into signal be 0 when, determine second circuit be faulty line；
When first group of sequential trip that the On-off signal plug-in unit receives is opened into signal and the second component phase trip signal
When being 1, determine that the first line and second circuit are faulty line.
In said program, the DSP plug-in units are specifically used for：
When the first line is faulty line, first group of three-phase voltage that the exchange input plug-in unit receives is judged
Whether virtual value is all higher than preset reference value；
When second circuit is faulty line, second group of three-phase voltage that the exchange input plug-in unit receives is judged
Whether virtual value is all higher than preset reference value.
In said program, described device can match SV/GOOSE plug-in units, and the SV/GOOSE plug-in units are used to receive
The line protective devices sequential trip of GOOSE forms outputs signal and the line voltage transformer output voltage of SV forms.
The utility model embodiment provides the coincidence brake control device that the utility model provides a kind of breaker, the dress
Put including：On-off signal plug-in unit, exchange input plug-in unit and Digital Signal Processing DSP plug-in units；The On-off signal plug-in unit is handed over
It is connected between stream input plug-in unit and DSP plug-in units by bus；Wherein, the On-off signal plug-in unit, for receiving two component phases
Tripping is opened into signal；First group of sequential trip that two groups of sequential trips are opened in signal is opened comes from 3/2 wiring into signal
The sequential trip of the line protective devices of first line outputs signal in mode, and two groups of sequential trips open in signal
Two groups of sequential trips, which open signal and come from the sequential trips of the line protective devices of the second circuit in 3/2 mode of connection, to be opened
Go out signal；The exchange input plug-in unit, for receiving two groups of three-phase voltages；First group of three-phase electricity in two groups of three-phase voltages
The voltage transformer that pressure comes from the first line exports, and second group of three-phase voltage in two groups of three-phase voltages comes from
The voltage transformer output of second circuit；The DSP plug-in units, for being opened according to two groups of sequential trips into signal and institute
It states two groups of three-phase voltages and controls the action of the reclosing of the first line and second circuit.
By above device provided in an embodiment of the present invention it is found that since first group of sequential trip is opened into signal and the second component
The sequential trip that the line protective devices that can be respectively from first line and the second circuit into signal are opened in phase tripping outputs letter
Number, so, which can accurately identify faulty line and non-fault line, and can correspond to the three-phase for receiving faulty line
Voltage controls faulty line so as to which whether the virtual value of the three-phase voltage according to faulty line is all higher than preset reference value
There is the phenomenon that malfunction or tripping in the correct action of reclosing, the reclosing for so avoiding faulty line in the prior art.
Description of the drawings
Fig. 1 is the reclosing controling device structure diagram of a kind of breaker that the utility model embodiment provides；
Fig. 2 is the reclosing controling device structure diagram of another breaker that the utility model embodiment provides；
Fig. 3 is the reclosing controling device structure diagram of another breaker that the utility model embodiment provides；
Fig. 4 is the principle schematic of a kind of determining faulty line that the utility model embodiment provides and non-fault line.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe.
Embodiment one
As shown in Fig. 2, a kind of coincidence brake control device of the breaker provided it gives the utility model embodiment
20, it can be seen from the figure that the device 20 can include：On-off signal plug-in unit 210, exchange input plug-in unit 220 and DSP plug-in units
230；It is connected between the On-off signal plug-in unit 210, exchange input plug-in unit 220 and DSP plug-in units 230 by bus；Wherein,
The On-off signal plug-in unit 210 is opened for receiving two groups of sequential trips into signal；Two groups of sequential trips are opened
Enter first in signal group of sequential trip and open point that signal comes from the line protective devices of first line in 3/2 mode of connection
Mutually signal is outputed in tripping, and second group of sequential trip that two groups of sequential trips are opened in signal is opened comes from described 3/ into signal
The sequential trip of the line protective devices of the second circuit outputs signal in 2 modes of connection；
The exchange input plug-in unit 220, for receiving two groups of three-phase voltages；First group three in two groups of three-phase voltages
The voltage transformer that phase voltage comes from the first line exports, and second group of three-phase voltage in two groups of three-phase voltages comes
From in the voltage transformer output of second circuit；
The DSP plug-in units 230, for being opened according to two groups of sequential trips into signal and two groups of three-phase voltages control
The reclosing of the first line and second circuit acts.
Illustratively, the DSP plug-in units 230, are specifically used for：
The two groups of sequential trips received according to the On-off signal plug-in unit are opened into signal from the first line and described
Faulty line is determined in second circuit；
It is preset that the two groups of three-phase voltages received according to the exchange input plug-in unit determine whether the faulty line meets
There is press strip part；
When the faulty line is any circuit in the first line and second circuit and the faulty line
Meet preset when having press strip part, indicate that the faulty line carries out reclosing action；
When the faulty line is any circuit in the first line and second circuit and the faulty line
It is unsatisfactory for preset when having press strip part, the faulty line is forbidden to carry out reclosing action.
Here, it should be noted that described when the first line and second circuit are currently faulty line
The reclosing function that DSP plug-in units will be latched the first line and second circuit, even if the first line and institute at this time
It states the second circuit and has been satisfied by press strip part, the reclosing of the first line and second circuit is also failure to actuate.
Illustratively, the DSP plug-in units, are specifically used for：
It opens when first group of sequential trip that the On-off signal plug-in unit receives and is opened into signal for 1 and second group of sequential trip
Enter signal for 0 when, determine the first line be faulty line；
It opens when second group of sequential trip that the On-off signal plug-in unit receives and is mutually jumped for 1 and first component into signal
Lock open into signal be 0 when, determine second circuit be faulty line；
When first group of sequential trip that the On-off signal plug-in unit receives is opened into signal and the second component phase trip signal
When being 1, determine that the first line and second circuit are faulty line.
It is to be appreciated that when it is 0 that first group of sequential trip, which is opened into signal, the first line is non-faulting line
Road；Similarly, when it is 0 that second group of sequential trip, which is opened into signal, second circuit is non-fault line.
Illustratively, the DSP plug-in units, are specifically used for：
When the first line is faulty line, first group of three-phase voltage that the exchange input plug-in unit receives is judged
Whether virtual value is all higher than preset reference value；
When second circuit is faulty line, second group of three-phase voltage that the exchange input plug-in unit receives is judged
Whether virtual value is all higher than preset reference value.
Illustratively, as shown in figure 3, described device can match SV/GOOSE plug-in units 240, the SV/GOOSE plug-in units
240 output signal and the line voltage transformer of SV forms is defeated for the line protective devices sequential trip that receives GOOSE forms
Go out voltage.
Here, it should be noted that " X " plug-in unit in Fig. 2 and slot shown in Fig. 3 is inserted for the other of described device 20
Part, part slot can also be empty slots, i.e., do not have any plug-in unit in the slot.In addition, it should also be noted that, for breaker
Coincidence brake control device, the Typical Disposition for being used for conventional substation is：Management and monitoring plug-in unit (01 slot), exchange input are inserted
Part (02,03 slot), DSP plug-in units (04 slot), On-off signal plug-in unit (08 slot), output switch parameter plug-in unit (11 slot), power management
Plug-in unit (P1 slots).It is used for the Typical Disposition of intelligent substation：Management and monitoring plug-in unit (01 slot), DSP plug-in units (04 slot),
SV/GOOSE plug-in units (07 slot), On-off signal plug-in unit (08 slot), plug-in package of power management (P1 slots).
The utility model provides a kind of coincidence brake control device of breaker, which includes：On-off signal plug-in unit,
Exchange input plug-in unit and Digital Signal Processing DSP plug-in units；The On-off signal plug-in unit, exchange input plug-in unit and DSP plug-in units it
Between connected by bus；Wherein, the On-off signal plug-in unit is opened for receiving two groups of sequential trips into signal；Described two groups
First group of sequential trip that sequential trip is opened in signal opens the circuit guarantor that signal comes from first line in 3/2 mode of connection
The sequential trip of protection unit outputs signal, and second group of sequential trip that two groups of sequential trips are opened in signal is opened into signal
Signal is outputed from the sequential trip of the line protective devices of the second circuit in 3/2 mode of connection；The exchange input is inserted
Part, for receiving two groups of three-phase voltages；First group of three-phase voltage in two groups of three-phase voltages comes from the first line
Voltage transformer output, the voltage that second group of three-phase voltage in two groups of three-phase voltages comes from second circuit is mutual
Sensor exports；The DSP plug-in units control institute for being opened according to two groups of sequential trips into signal and two groups of three-phase voltages
State the reclosing action of first line and second circuit.
By above device provided in an embodiment of the present invention it is found that since first group of sequential trip is opened into signal and the second component
Mutually tripping open into signal can be respectively with first line and the line protective devices of the second circuit sequential trip output signal pair
Should, so, the DSP plug-in units can accurately identify faulty line and non-fault line, and can accurately receive faulty line
Three-phase voltage, and control fault wire according to whether the virtual value of the three-phase voltage of faulty line is all higher than preset reference value
There is showing for malfunction or tripping so as to avoid the reclosing of faulty line in the prior art in the correct action of the reclosing on road
As.
Embodiment two
Understanding to above-mentioned technical proposal for convenience, when the utility model embodiment will be to 20 normal operation of above device
The course of work be specifically described and illustrate.
When 20 normal operation of above device, the reclosing function input of the present apparatus 20, reclosing inspection circuit has pressure function
Input, reclosing charging complete.At this point, as shown in figure 4, when the first line breaks down, DSP plug-in units 230 detect
First group of sequential trip open into signal be 1, second group of sequential trip open into signal be 0, the first line tripping into
After work(, if the condition without lock-reclosing lock, starting recloser, and when the reclosing stand-by period reaching setting valve, DSP plug-in units
230 judge whether the virtual value of the three-phase voltage of the first line is all higher than preset reference value；If failure is instantaneity event
Barrier, the first line offside reclosing success, this side three-phase voltage of circuit are more than reference value, then DSP plug-in units 230 indicate described
First line originally stresses feed motion；If failure is permanent fault, the first line offside reclosing is unsuccessful, circuit
This side three-phase voltage is less than reference value, then DSP plug-in units 230 indicate that the combined floodgate that originally stresses of the first line is failure to actuate.Described
Reclosing operation principle when reclosing operation principle during two line failures breaks down with the first line is identical,
Therefore, details are not described herein again.In addition, when the first line and second circuit break down, DSP plug-in units detect
It is 1 that corresponding sequential trip, which is opened into signal, and DSP plug-in units 230 will control the first line and second line at this time
The reclosing electric discharge on road, that is, be latched the first line and the reclosing function of second circuit.
It can thus be seen that a kind of coincidence brake control device of breaker disclosed in the utility model by supervising in real time respectively
The voltage analog on the two lines road in 3/2 mode of connection and sequential trip signal are surveyed, with reference to logic judgment, can correctly be identified
Faulty line and non-fault line, detect whether the virtual value of the three-phase voltage of faulty line is all higher than preset reference value,
So as to which whether the reclosing for correctly controlling faulty line acts, the reclosing for so avoiding faulty line in some cases occurs
The phenomenon that malfunction or tripping.
Above example is only to illustrate the technological thought of the utility model, it is impossible to the protection model of the utility model is limited with this
Enclose, it is every according to the utility model proposes technological thought, any change done on the basis of technical solution each falls within this reality
Within the scope of novel protected.
Claims (6)
1. the coincidence brake control device of a kind of breaker, which is characterized in that described device includes：On-off signal plug-in unit, exchange
Input plug-in unit and Digital Signal Processing DSP plug-in units；Lead between the On-off signal plug-in unit, exchange input plug-in unit and DSP plug-in units
Cross bus connection；Wherein,
The On-off signal plug-in unit is opened for receiving two groups of sequential trips into signal；Two groups of sequential trips are opened into signal
In first group of sequential trip open the sequential trip that signal comes from the line protective devices of first line in 3/2 mode of connection
Signal is outputed, second group of sequential trip that two groups of sequential trips are opened in signal is opened comes from 3/2 wiring into signal
The sequential trip of the line protective devices of the second circuit outputs signal in mode；
The exchange input plug-in unit, for receiving two groups of three-phase voltages；First group of three-phase voltage in two groups of three-phase voltages
The voltage transformer for coming from the first line exports, and second group of three-phase voltage in two groups of three-phase voltages comes from institute
State the voltage transformer output of the second circuit；
The DSP plug-in units, for being opened according to two groups of sequential trips into signal and two groups of three-phase voltages control described the
The reclosing of one circuit and second circuit acts.
2. the apparatus according to claim 1, which is characterized in that the DSP plug-in units are specifically used for：
The two groups of sequential trips received according to the On-off signal plug-in unit are opened into signal from the first line and described second
Faulty line is determined in circuit；
Two groups of three-phase voltages that plug-in unit receives are inputted according to the exchange and determine whether the faulty line meets and preset have pressure
Condition；
When the faulty line meets for any circuit in the first line and second circuit and the faulty line
It is preset when having press strip part, indicate that the faulty line carries out reclosing action；
When the faulty line is discontented with for any circuit in the first line and second circuit and the faulty line
When foot is preset press strip part, the faulty line is forbidden to carry out reclosing action.
3. the apparatus of claim 2, which is characterized in that the DSP plug-in units are additionally operable to：
When the first line and second circuit are faulty line, the DSP plug-in units be latched the first line and
The reclosing function of second circuit.
4. the apparatus of claim 2, which is characterized in that the DSP plug-in units are specifically used for：
It opens when first group of sequential trip that the On-off signal plug-in unit receives and is opened into signal for 1 and second group of sequential trip into letter
Number be 0 when, determine the first line be faulty line；
It opens when second group of sequential trip that the On-off signal plug-in unit receives and is opened into signal for 1 and first group of sequential trip
Enter signal for 0 when, determine second circuit be faulty line；
It is 1 to be opened when first group of sequential trip that the On-off signal plug-in unit receives into signal and the second component phase trip signal
When, determine that the first line and second circuit are faulty line.
5. the apparatus of claim 2, which is characterized in that the DSP plug-in units are specifically used for：
When the first line is faulty line, the effective of first group of three-phase voltage that the exchange input plug-in unit receives is judged
Whether value is all higher than preset reference value；
When second circuit is faulty line, the effective of second group of three-phase voltage that the exchange input plug-in unit receives is judged
Whether value is all higher than preset reference value.
6. the apparatus according to claim 1, which is characterized in that described device further includes SV/GOOSE plug-in units, the SV/
For receiving, the line protective devices sequential trip of GOOSE forms outputs signal to GOOSE plug-in units and the line voltage distribution of SV forms is mutual
Sensor output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721232434.XU CN207475174U (en) | 2017-09-22 | 2017-09-22 | A kind of coincidence brake control device of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721232434.XU CN207475174U (en) | 2017-09-22 | 2017-09-22 | A kind of coincidence brake control device of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207475174U true CN207475174U (en) | 2018-06-08 |
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ID=62269867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721232434.XU Active CN207475174U (en) | 2017-09-22 | 2017-09-22 | A kind of coincidence brake control device of breaker |
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| Country | Link |
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| CN (1) | CN207475174U (en) |
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2017
- 2017-09-22 CN CN201721232434.XU patent/CN207475174U/en active Active
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Meishu Inventor after: Hu Kaibo Inventor after: Yu Lifeng Inventor after: Xia Zhiling Inventor after: Liu Kui Inventor after: Zhao Qingchun Inventor after: Lu Jinfeng Inventor before: Liu Kui Inventor before: Wang Meishu Inventor before: Hu Kaibo Inventor before: Zhao Qingchun Inventor before: Lu Jinfeng Inventor before: Xia Zhiling Inventor before: Yu Lifeng |
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Effective date of registration: 20210902 Address after: 321110 Ling Dong Xiang Shi Guan Cun, Lanxi City, Jinhua City, Zhejiang Province Patentee after: ZHEJIANG ZHENENG LANXI ELECTRIC POWER GENERATION Co.,Ltd. Address before: 211102, No. 69, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee before: NR ELECTRIC Co.,Ltd. Patentee before: ZHEJIANG ZHENENG LANXI ELECTRIC POWER GENERATION Co.,Ltd. |