CN106199415B - Female process median generatrix disconnecting link method for detecting position and system are fallen based on main station system heat - Google Patents
Female process median generatrix disconnecting link method for detecting position and system are fallen based on main station system heat Download PDFInfo
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- CN106199415B CN106199415B CN201610528218.3A CN201610528218A CN106199415B CN 106199415 B CN106199415 B CN 106199415B CN 201610528218 A CN201610528218 A CN 201610528218A CN 106199415 B CN106199415 B CN 106199415B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
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Abstract
The invention discloses based on main station system heat, the remote signalling of bus disconnecting link is conjugated signal by female process median generatrix disconnecting link method for detecting position and system, one sent including receiving power plant or substation；It will include that fall female equipment group cooperation be that Devices to test combines for the heat of bus disconnecting link if pre-stored multiple groups heat falls in female equipment combination to have the heat including bus disconnecting link to fall female equipment combination；Judged in the preset time period before at the time of receiving remote signalling displacement signal respectively, whether the active power parameter that the Devices to test obtained in advance combines interior each equipment is all satisfied preset requirement, if, from after delay preset time at the time of receiving remote signalling displacement signal, it obtains respectively and judges whether the active power balance amount of two buses in Devices to test combination is all larger than default balanced threshold, it is alerted if it is not, sending the first alarm signal to warning system.The present invention can be detected and be alerted in place to whether female process median generatrix disconnecting link hot in power plant and substation is closed, highly reliable.
Description
Technical field
The present invention relates to plant stand fault detection technique field, female process median generatrix is fallen more particularly to based on main station system heat
Disconnecting link method for detecting position and system.
Background technique
Mother is that a kind of common grid switching operation under double bus scheme mode is needed due to busbar overhaul etc. to heat
It will be evenly distributed on the device switchings such as route, the transformer run on two buses to another bus and run, the mistake switched
Cheng Zhong, in order to ensure route continued power, it is necessary to carry out heat parent-operation.
In heat parent-operation, need first disconnect script one bus disconnecting link is closed, then again by script closure
One bus disconnecting link disconnect, if closure bus disconnecting link be not closed in place, when pulling open another disconnecting link bus, can directly make
At current switching equipment power loss, causes on-load broaching tool lock accident, lead to the direct decompression of power plant or substation, this kind of accident is often drawn
Chain reaction is played, multiple power plant or substation's no-voltage of entire station are caused, partial electric grid collapse is will lead under serious conditions, brings huge
Loss.And currently, whether detection bus disconnecting link is closed mode in place mainly according to auxiliary contact in hot parent-operation
The scene confirmation of return signal and operator are to judge, still, have the case where foreign matter when occurring such as corrosion on bus disconnecting link
When, in fact it could happen that bus disconnecting link closure after, monitoring backstage and scene display be closed successfully, but the closure of practical bus disconnecting link less than
Position, such as there are gaps etc. for centre, to cause accident, i.e., existing detection mode safety is low, poor reliability.
Therefore, how to provide and a kind of highly-safe, highly reliable female process median generatrix disconnecting link is fallen based on main station system heat
Method for detecting position and system are the current problems to be solved of those skilled in the art.
Summary of the invention
The object of the present invention is to provide falling female process median generatrix disconnecting link method for detecting position and system based on main station system heat,
Accurately it can be detected and be alerted in place to whether hot female process median generatrix disconnecting link is closed, be avoided in power plant or substation
Due to bus disconnecting link closure it is not in place caused by on-load broaching tool lock accident, it is highly-safe, it is highly reliable.
In order to solve the above technical problems, the present invention provides based on the female process median generatrix disconnecting link position inspection of main station system heat
Survey method, comprising:
Step s101: it receives power plant or substation send one and the remote signalling of bus disconnecting link is conjugated signal；
Whether step s102: determining pre-stored multiple groups heat to fall in female equipment combination has the heat including the bus disconnecting link
Female equipment combination, if so, female equipment group cooperation is Devices to test combination by the heat including the bus disconnecting link, and
Enter step s103；Wherein, including two buses, two bus disconnecting links and bus connection switch in hot female equipment combination；
Step s103: judged in the preset time period before at the time of receiving the remote signalling displacement signal respectively, in advance
Whether the active power parameter that the Devices to test first obtained combines interior each equipment is all satisfied preset requirement, if so, into
Enter step s104；
Step s104: it at the time of receiving the remote signalling displacement signal certainly after delay preset time, obtains and judges respectively
Whether the active power balance amount that the Devices to test combines interior two buses is all larger than default balanced threshold, if it is not, then institute
It is not in place to state bus disconnecting link closure, and sends the first alarm signal to warning system and is alerted.
Preferably, the step s103 is specifically included:
Step s301: judge in the preset time period before at the time of receiving the remote signalling displacement signal, in advance
Whether the active power that the Devices to test first obtained combines interior bus connection switch, which is less than, is preset active threshold value；If not, into
Step s302；
Step s302: the preset time period before at the time of receiving the remote signalling displacement signal is judged respectively
Interior, whether the active power balance amount that the Devices to test obtained in advance combines interior two buses is respectively less than the default balance
Threshold value, if so, entering step s104.
Preferably, after the step s103 further include:
From after the preset time that is delayed at the time of receiving the remote signalling displacement signal, the Devices to test combination is obtained
The first current value on the interior bus connection switch；
Calculate first current value and the preset time before at the time of receiving the remote signalling displacement signal
The Devices to test obtained in advance in section combines the difference of the second current value of interior bus connection switch；
Judge whether the difference and the ratio of second current value are less than default ratio, if it is, the bus
Disconnecting link closure is not in place, and sends the second alarm signal to the warning system and alerted.
Preferably, the step s301 further include:
If what is obtained in advance is described in the preset time period before at the time of receiving the remote signalling displacement signal
The active power that Devices to test combines interior bus connection switch, which is less than, presets active threshold value, sends third alarm signal to the alarm and is
System is alerted.
Preferably, the step s302 further include:
If what is obtained in advance is described in the preset time period before at the time of receiving the remote signalling displacement signal
The active power balance amount that Devices to test combines interior two buses is not respectively less than the default balanced threshold, sends the 4th alarm letter
It number is alerted to the warning system.
In order to solve the above technical problems, the present invention also provides be based on main station system heat female process median generatrix disconnecting link position
Detection system, comprising:
The remote signalling of bus disconnecting link is conjugated signal for receiving power plant or substation send one by receiving module；
Whether determining module has for determining pre-stored multiple groups heat to fall in female equipment combination including the bus disconnecting link
Heat fall female equipment combination, if so, will include that the heat of the bus disconnecting link falls female equipment group cooperation and is that Devices to test combines, and
Trigger first judgment module；Wherein, it is opened in hot female equipment combination including two buses, two bus disconnecting links and mother
It closes；
The first judgment module, it is default before at the time of receiving the remote signalling displacement signal for judging respectively
In period, whether the active power parameter that the Devices to test obtained in advance combines interior each equipment is all satisfied default want
It asks, if so, the second judgment module of triggering；
Second judgment module, at the time of for receiving the remote signalling displacement signal certainly after delay preset time, point
It does not obtain and judges whether the active power balance amount of two buses in the Devices to test combination is all larger than default balanced threshold,
If it is not, then the bus disconnecting link closure is not in place, and sends the first alarm signal to warning system and alerted.
Preferably, the determining module specifically includes:
First determination unit, for judging the preset time before at the time of receiving the remote signalling displacement signal
In section, whether the active power that the Devices to test obtained in advance combines interior bus connection switch, which is less than, is preset active threshold value；If
It is no, trigger the second determination unit；
Second determination unit, for respectively before at the time of judgement receives remote signalling displacement signal described in
In preset time period, whether the active power balance amount that the Devices to test obtained in advance combines interior two buses is respectively less than institute
Default balanced threshold is stated, if so, triggering second judgment module.
Preferably, further includes:
Electric current obtains module, after the preset time that is delayed at the time of for receiving the remote signalling displacement signal certainly, obtains
The Devices to test is taken to combine the first current value on the interior bus connection switch；
Difference calculating module, for calculate first current value at the time of receiving remote signalling displacement signal it
The Devices to test obtained in advance in the preceding preset time period combines the difference of the second current value of interior bus connection switch；
Third judgment module, for judging whether the difference and the ratio of second current value are less than default ratio,
If it is, the bus disconnecting link closure is not in place, and sends the second alarm signal to the warning system and alerted.
The present invention provides be based on main station system heat female process median generatrix disconnecting link method for detecting position and system, the present invention
After the remote signalling for receiving a bus disconnecting link conjugates signal, however, it is determined that the bus disconnecting link belongs to heat and falls in female equipment combination, then
First determine whether the heat obtained in advance in the preset time period before at the time of receiving remote signalling and conjugate signal female equipment group
Whether the active power parameter of each equipment is all satisfied preset requirement in closing, if it is, showing the heat, female hot standby combination exists
It is worked normally before displacement, judge that the heat after the displacement of bus disconnecting link falls the active power balances of female interior two buses of equipment combination later
Whether amount is respectively less than default balanced threshold；Wherein, active power balance amount refers to passing through its company for a physics bus
The whole switches connect flow into, flow out the algebraical sum of the active power of bus.
Due under normal circumstances, being closed if bus disconnecting link conjugates, the meeting within a period of time that two bus disconnecting links are closed
Another interim circuit in addition to bus connection switch is formed between double-bus, part active power can be interim time by this at this time
Road is done directly Power Exchange, and without bus connection switch, therefore the active power that will lead to two buses is unbalance, active power is flat
It measures and is greater than default balanced threshold；If after receiving remote signalling displacement signal, the active power balance amounts of two buses still less than
Default balanced threshold then shows that bus disconnecting link closure is not in place, and then is alerted.It can be seen that the present invention can be accurately
It is detected and is alerted in place to whether hot female process median generatrix disconnecting link is closed, avoided in power plant or substation due to bus
On-load broaching tool lock accident caused by disconnecting link closure is not in place, it is highly-safe, it is highly reliable.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is provided by the invention to fall the process of female process median generatrix disconnecting link method for detecting position based on main station system heat
Flow chart；
Fig. 2 is provided by the invention to fall the structure of female process median generatrix disconnecting link position detecting system based on main station system heat and show
It is intended to.
Specific embodiment
Core of the invention, which is to provide, falls female process median generatrix disconnecting link method for detecting position and system based on main station system heat,
Accurately it can be detected and be alerted in place to whether hot female process median generatrix disconnecting link is closed, be avoided in power plant or substation
Due to bus disconnecting link closure it is not in place caused by on-load broaching tool lock accident, it is highly-safe, it is highly reliable.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
It is shown in Figure 1 the present invention provides falling female process median generatrix disconnecting link method for detecting position based on main station system heat,
Fig. 1 be it is provided by the invention based on main station system heat fall female process median generatrix disconnecting link method for detecting position process flow chart；
This method comprises:
Step s101: it receives power plant or substation send one and the remote signalling of bus disconnecting link is conjugated signal；
It is understood that showing the bus disconnecting link at this time after the remote signalling for receiving a bus disconnecting link conjugates signal
And matched one is closed state bus disconnecting link, so when the bus disconnecting link that receives and matched
The remote signalling value of one bus disconnecting link is to close.
Step s102: determine that pre-stored multiple groups heat falls in female equipment combination whether to have the heat including bus disconnecting link to fall mother
Equipment combination if so, female equipment group cooperation is Devices to test combination by the heat including bus disconnecting link, and enters step
s103；Wherein, including two buses, two bus disconnecting links and bus connection switch in hot female equipment combination；
Wherein, the pre-stored multiple groups heat method that female equipment combines is obtained are as follows: utilize power grid in power plant or substation
The connection relationship of equipment constructs the topological diagram that be made of " point ", " side ", then to obtained topological diagram progress compartment analysis,
A series of topologys such as logic bus is analyzed, electrical island is analyzed calculate, and analyze the simulator group that can be realized hot parent-operation
It closes.
It is further known that obtaining multiple groups heat female equipment calculating by above topology for a power plant or substation
After group merging is stored in advance, if needing to be stored in advance again through with the update of upper topology calculating process when there is following two situation
Multiple groups heat fall female equipment combination:
Situation one: after increasing or decreasing equipment, or change device location in power plant or substation, multiple groups need to be recalculated
Female equipment group merging is stored in advance heat；
Situation two: by being configured to the module for carrying out above topology calculating, make its power plant of periodically reruning
Or female equipment group merging is stored in advance the multiple groups heat in substation.Certainly, if carrying out periodic rerun can be by reality
Depending on the situation of border, the present invention is not construed as limiting, and the present invention does not also limit the specific value in the period reruned.
Step s103: judge to obtain in advance in the preset time period before at the time of receiving remote signalling displacement signal respectively
Whether the active power parameter that the Devices to test taken combines interior each equipment is all satisfied preset requirement, if so, entering step
s104；
It is understood that can learn that Devices to test combination is receiving remote signalling displacement signal by above-mentioned judgement
At the time of before preset time period in whether work normally, if normal, just carry out subsequent operation, otherwise, if the Devices to test
Combination has occurred and that failure, then does not need to carry out subsequent judgement.
Wherein, the length of preset time period here can sets itself according to the actual situation.
Step s104: it at the time of receiving remote signalling displacement signal certainly after delay preset time, obtains and judges to be measured respectively
Whether the active power balance amount that equipment combines interior two buses is all larger than default balanced threshold, if it is not, then bus disconnecting link closes
Close it is not in place, and send the first alarm signal to warning system alerted.
It is understood that active power balance amount is referred to for a physics bus, the whole connected by it
Switch flows into, flows out the algebraical sum of the active power of bus.Under normal circumstances, due to that can close first in the operation that heat falls mother
Pull open originally one is closed bus disconnecting link, then pulls open the another bus disconnecting link of script closure, therefore in the process, can have one
Section two bus disconnecting links of time are in closed state, and can be formed in addition to bus connection switch between double-bus under this kind of state
Another interim circuit, this interim circuit can play shunting function to bus connection switch, and part active power can be faced by this
Shi Huilu is done directly Power Exchange, and without bus connection switch, and this part active power can not pass through original wattful power
Rate aequum relational expression calculates, if at this time further according to the active power balance amount of original relational expression two buses of calculating,
It can obtain unbalanced as a result, i.e. active power balance amount can jump, embodying numerically is the active of two buses
Power-balance amount is greater than default balanced threshold；Conversely, interim circuit is not turned on, and is reruned if bus disconnecting link closure is not in place
The active power balance amount of two buses is being still balanced to obtain as a result, receiving at this time after remote signalling conjugates signal
The active power balance amount of two buses taken is less than default balanced threshold.
Wherein, default balanced threshold here can be set to zero, may be set to be the value close to zero.Preset time can
To be set as 7s, the present invention does not limit the numerical value of default balanced threshold and preset time, and staff can be according to the actual situation
It decides in its sole discretion.
It should be noted that being referred to based on main station system based on power dispatching automation main station system in the present invention.
The present invention provides based on main station system heat, female process median generatrix disconnecting link method for detecting position, the present invention are being received
To after the remote signalling displacement signal of a bus disconnecting link, however, it is determined that the bus disconnecting link belongs to heat and falls in female equipment combination, then sentences first
Break in the preset time period before at the time of receiving remote signalling displacement signal, female equipment combination is interior each for the heat obtained in advance
Whether the active power parameter of a equipment is all satisfied preset requirement, if it is, showing that the heat falls female hot standby combination before displacement
Work normally, judge later the heat after the displacement of bus disconnecting link fall female interior two buses of equipment combination active power balance amount whether
Respectively less than default balanced threshold；Due under normal circumstances, being closed if bus disconnecting link conjugates, the active power balance amount of two buses
Greater than default balanced threshold；If therefore the active power balance amount of two buses obtained after receiving remote signalling displacement signal is still small
In default balanced threshold, then show that bus disconnecting link closure is not in place, and then alerted.It can be seen that the present invention can be accurate
Ground is detected and is alerted in place to whether hot female process median generatrix disconnecting link is closed, and is avoided in power plant or substation due to mother
On-load broaching tool lock accident caused by line disconnecting link closure is not in place, it is highly-safe, it is highly reliable.
Embodiment two
On the basis of embodiment one, the present invention also provides be separately based on main station system heat female process median generatrix disconnecting link
Method for detecting position.
Preferably, step s103 is specifically included:
Step s301: judge to obtain in advance in the preset time period before at the time of receiving remote signalling displacement signal
Whether the active power that Devices to test combines interior bus connection switch, which is less than, is preset active threshold value；If not, entering step s302；
It is understood that and if being obtained in advance in the preset time period before at the time of receiving remote signalling displacement signal
The active power of the bus connection switch taken, which is less than, presets active threshold value, shows the friendship that active power itself is not present between double-bus
It changes, in this case, after two bus disconnecting links are closed, the active power balance amount of two buses would not also be jumped
Become, no matter that is, whether bus disconnecting link is closed in place, the active power balance amount of two buses is consistently less than default balanced threshold.
It can be seen that, it is necessary to it just can be carried out subsequent judgement when the active power of bus connection switch is greater than and presets active threshold value.
Wherein, active threshold value of presetting here is 0 (or close to 0 value), and this is not limited by the present invention, staff
It can decide in its sole discretion according to the actual situation.
Step s302: judge to obtain in advance in the preset time period before at the time of receiving remote signalling displacement signal respectively
Whether the active power balance amount that the Devices to test taken combines interior two buses is respectively less than default balanced threshold, if so, into
Step s104.
It is understood that the active power balance amount of two buses is respectively less than pre- when bus disconnecting link is not conjugated
If balanced threshold, if the aequum is excessive, illustrate that the measurement for current bus and its institute's attached device has mistake or to be measured
Equipment combination there is failure in itself, so when not can be carried out subsequent detection operation.
In addition, step s301 and the sequence of step s302 can be interchanged, i.e., the judgement of step s302 is carried out first, if judgement
As a result for "Yes", s301 is entered step；If entering step s104 if the judging result of step s301 is "Yes".Certainly,
The present invention does not limit the sequence between step s301 and step s302.
It is further known that can be by predetermined period to the active of each group heat two buses that female equipment combines in the present invention
Power-balance amount and the active power of bus connection switch are obtained and are stored, after receiving remote signalling displacement signal, from above
Select in the preset time period before at the time of receiving remote signalling displacement signal the data that obtain to carry out in the data of storage with
Upper judgement operation.Certainly, the present invention does not limit the frequency of predetermined period.
Preferably, after step s103 further include:
From after delay preset time at the time of receiving remote signalling displacement signal, obtains Devices to test and combine on interior bus connection switch
The first current value；
It calculates and is obtained in advance in the first current value and the preset time period before at the time of receiving remote signalling displacement signal
Devices to test combine in bus connection switch the second current value difference；
Judge whether difference and the ratio of the second current value are less than default ratio, if it is, bus disconnecting link closure less than
Position, and send the second alarm signal to warning system and alerted.
It is understood that under normal circumstances, when being all closed due to two bus disconnecting links, interim circuit can hold mother
It closes and generates shunting function, the current value on bus connection switch should jump downwards；Conversely, if disconnecting link is closed not in place, interim circuit
It is not turned on, the current value of bus connection switch should remain unchanged compared with the current value before receiving remote signalling displacement signal, or go out
Existing smoother variation, if embodying numerically is after receiving remote signalling displacement signal, the current value of bus connection switch is jumped downwards
The amount (i.e. the difference of the first current value and the second current value) of change and the ratio of the second current value are less than default ratio, then show just
The operation median generatrix disconnecting link closure just completed is not in place.
Wherein, default ratio here can be decided in its sole discretion according to the actual situation, and the present invention is particularly limited to this deficiency.
In addition, the present invention does not limit the sequencing between above-mentioned steps and step s104.
Preferably, step s301 further include:
If the Devices to test obtained in advance combines in the preset time period before at the time of receiving remote signalling displacement signal
The active power of interior bus connection switch, which is less than, presets active threshold value, sends third alarm signal to warning system and is alerted.
Preferably, step s302 further include:
If the Devices to test obtained in advance combines in the preset time period before at the time of receiving remote signalling displacement signal
The active power balance amount of interior two buses is not respectively less than default balanced threshold, sends the 4th alarm signal to warning system and carries out
Alarm.
It wherein, can be using the group of one or more of following alarm operation after warning system receives alarm signal
Close: alarm operation includes showing on display screen by the position of failure in warning system；Or by warning system
Voice device carry out voice reminder or by corresponding warning information by the way of short message, work people is sent to by warning system
On the mobile phone of member.Further, after receiving the first alarm signal~four alarm signal, which warning system specifically uses
Kind or which kind alarm operation, the present invention are not defined.
Compared with embodiment one, the present embodiment also judges the current value of bus connection switch, since bus disconnecting link is sent out
It changes behind position, interim circuit can shunt bus connection switch, jump the current value on bus connection switch, if receiving distant
Letter displacement signal after, the variable quantity of the current value of bus connection switch with receive remote signalling displacement signal at the time of before it is default when
Between the Devices to test that is obtained in section in advance combine in the ratio of the second current value of bus connection switch be less than default ratio, then show not
Form interim circuit, i.e. bus disconnecting link closure is not in place, and carries out alarm operation, i.e. the present embodiment is from two side of power and electric current
Whether face is closed detecting bus disconnecting link improves the accuracy and reliability of detection in place；In addition, the present embodiment also adds
To in the preset time period before at the time of receiving remote signalling displacement signal, the data of the Devices to test that obtains in advance combination into
After row judgement, if judgement shows if cannot continuing detection, alarm operation is carried out, staff is prompted to examine in time
It looks into, high reliablity.
The present invention also provides female process median generatrix disconnecting link position detecting system is fallen based on main station system heat, institute referring to fig. 2
Show, Fig. 2 is provided by the invention to fall the structural schematic diagram of female process median generatrix disconnecting link position detecting system based on main station system heat.
The system includes:
The remote signalling of bus disconnecting link is conjugated signal for receiving power plant or substation send one by receiving module 11；
Whether determining module 12 has for determining pre-stored multiple groups heat to fall in female equipment combination including bus disconnecting link
Heat falls female equipment combination, if so, will include that the heat of bus disconnecting link falls female equipment group cooperation and is that Devices to test combines, and triggering the
One judgment module 13；Wherein, including two buses, two bus disconnecting links and bus connection switch in hot female equipment combination；
First judgment module 13, for judging the preset time period before at the time of receiving remote signalling displacement signal respectively
Interior, whether the active power parameter that the Devices to test obtained in advance combines interior each equipment is all satisfied preset requirement, if so, touching
Send out the second judgment module 14；
Second judgment module 14 obtains respectively at the time of for receiving remote signalling displacement signal certainly after delay preset time
And judge whether the active power balance amount of two buses in Devices to test combination is all larger than default balanced threshold, if it is not, then
Bus disconnecting link closure is not in place, and sends the first alarm signal to warning system and alerted.
Wherein it is determined that module 12 specifically includes:
First determination unit, for judging in the preset time period before at the time of receiving remote signalling displacement signal, in advance
Whether the active power that the Devices to test first obtained combines interior bus connection switch, which is less than, is preset active threshold value；If not, triggering second
Determination unit；
Second determination unit, for judging the preset time period before at the time of receiving remote signalling displacement signal respectively
Interior, whether the active power balance amount that the Devices to test obtained in advance combines interior two buses is respectively less than default balanced threshold, such as
Fruit is to trigger the second judgment module 14.
Preferably, the system further include:
Electric current obtains module 15, at the time of for receiving remote signalling displacement signal certainly after delay preset time, obtains to be measured
Equipment combines the first current value on interior bus connection switch；
Difference calculating module 16, for calculate the first current value with receive remote signalling displacement signal at the time of before it is pre-
If the Devices to test obtained in advance in the period combines the difference of the second current value of interior bus connection switch；
Third judgment module 17, for judging whether difference and the ratio of the second current value are less than default ratio, if so,
Then bus disconnecting link closure is not in place, and sends the second alarm signal to warning system and alerted.
Wherein, the system in the present invention is in the circuit of single phase poaer supply or in the circuit of three phase mains, the present invention to be to this
It is not particularly limited.It should be noted that when power supply is three phase mains, the default balanced threshold of setting and default ratio
Size needs to guarantee to be able to carry out alarm when the bus disconnecting link closure in any phase is not in place.
The present invention provides based on main station system heat, female process median generatrix disconnecting link position detecting system, the present invention are being received
To after the remote signalling displacement signal of a bus disconnecting link, however, it is determined that the bus disconnecting link belongs to heat and falls in female equipment combination, then sentences first
Break in the preset time period before at the time of receiving remote signalling displacement signal, female equipment combination is interior each for the heat obtained in advance
Whether the active power parameter of a equipment is all satisfied preset requirement, if it is, showing that the heat falls female hot standby combination before displacement
Work normally, judge later the heat after the displacement of bus disconnecting link fall female interior two buses of equipment combination active power balance amount whether
Respectively less than default balanced threshold；Wherein, active power balance amount refers to connecting full a physics bus by it
Portion's switch flows into, flows out the algebraical sum of the active power of bus.
Due under normal circumstances, being closed if bus disconnecting link conjugates, the meeting within a period of time that two bus disconnecting links are closed
Another interim circuit in addition to bus connection switch is formed between double-bus, part active power can be interim time by this at this time
Road is done directly Power Exchange, and without bus connection switch, therefore the active power that will lead to two buses is unbalance, active power is flat
It measures and is greater than default balanced threshold；If after receiving remote signalling displacement signal, the active power balance amounts of two buses still less than
Default balanced threshold then shows that bus disconnecting link closure is not in place, and then is alerted.It can be seen that the present invention can be accurately
It is detected and is alerted in place to whether hot female process median generatrix disconnecting link is closed, avoided in power plant or substation due to bus
On-load broaching tool lock accident caused by disconnecting link closure is not in place, it is highly-safe, it is highly reliable.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. based on main station system heat, mother's process median generatrix disconnecting link method for detecting position, hot female equipment combine interior including two mothers
Line, two bus disconnecting links and bus connection switch；It is characterised by comprising:
Step s101: it receives power plant or substation send one and the remote signalling of bus disconnecting link is conjugated signal；
Step s102: determine that pre-stored multiple groups heat falls in female equipment combination whether to have the heat including the bus disconnecting link to fall mother
Equipment combination if so, female equipment group cooperation is Devices to test combination by the heat including the bus disconnecting link, and enters
Step s103；
Step s103: judge to obtain in advance in the preset time period before at the time of receiving the remote signalling displacement signal respectively
Whether the active power parameter that the Devices to test taken combines interior each equipment is all satisfied preset requirement, if so, entering step
Rapid s104；
Step s104: it at the time of receiving the remote signalling displacement signal certainly after delay preset time, obtains and judges described respectively
Whether the active power balance amount that Devices to test combines interior two buses is all larger than default balanced threshold, if it is not, then the mother
Line disconnecting link closure is not in place, and sends the first alarm signal to warning system and alerted.
2. the method according to claim 1, wherein the step s103 is specifically included:
Step s301: judge to obtain in advance in the preset time period before at the time of receiving the remote signalling displacement signal
Whether the active power that the Devices to test taken combines interior bus connection switch, which is less than, is preset active threshold value；If not, entering step
s302；
Step s302: judged in the preset time period before at the time of receiving the remote signalling displacement signal respectively, in advance
Whether the active power balance amount that the Devices to test first obtained combines interior two buses is respectively less than the default balanced threshold,
If so, entering step s104.
3. according to the method described in claim 2, it is characterized in that, after the step s103 further include:
From after the preset time that is delayed at the time of receiving the remote signalling displacement signal, obtains the Devices to test and combine interior institute
State the first current value on bus connection switch；
Calculate first current value and in the preset time period before at the time of receiving the remote signalling displacement signal
The Devices to test obtained in advance combines the difference of the second current value of interior bus connection switch；
Judge whether the difference and the ratio of second current value are less than default ratio, if it is, the bus disconnecting link
Be closed it is not in place, and send the second alarm signal to the warning system alerted.
4. according to the method described in claim 2, it is characterized in that, the step s301 further include:
If what is obtained in advance is described to be measured in the preset time period before at the time of receiving the remote signalling displacement signal
Equipment combine in the active power of bus connection switch be less than and preset active threshold value, send third alarm signal to the warning system into
Row alarm.
5. according to the method described in claim 4, it is characterized in that, the step s302 further include:
If what is obtained in advance is described to be measured in the preset time period before at the time of receiving the remote signalling displacement signal
The active power balance amount that equipment combines interior two buses is not respectively less than the default balanced threshold, sends the 4th alarm signal extremely
The warning system is alerted.
6. based on main station system heat, mother's process median generatrix disconnecting link position detecting system, hot female equipment combine interior including two mothers
Line, two bus disconnecting links and bus connection switch；It is characterised by comprising:
The remote signalling of bus disconnecting link is conjugated signal for receiving power plant or substation send one by receiving module；
Whether determining module has the heat including the bus disconnecting link for determining pre-stored multiple groups heat to fall in female equipment combination
Female equipment combination if so, female equipment group cooperation is Devices to test combination by the heat including the bus disconnecting link, and triggers
First judgment module；
The first judgment module, for judging the preset time before at the time of receiving the remote signalling displacement signal respectively
In section, whether the active power parameter that the Devices to test obtained in advance combines interior each equipment is all satisfied preset requirement, such as
Fruit is to trigger the second judgment module；
Second judgment module obtains respectively at the time of for receiving the remote signalling displacement signal certainly after delay preset time
It takes and judges whether the active power balance amount of two buses in the Devices to test combination is all larger than default balanced threshold, if
No, then the bus disconnecting link closure is not in place, and sends the first alarm signal to warning system and alerted.
7. system according to claim 6, which is characterized in that the determining module specifically includes:
First determination unit, for judging the preset time period before at the time of receiving the remote signalling displacement signal
Interior, whether the active power that the Devices to test obtained in advance combines interior bus connection switch, which is less than, is preset active threshold value；If not,
Trigger the second determination unit；
Second determination unit, for described default before at the time of judgement receives the remote signalling displacement signal respectively
In period, it is described pre- whether the active power balance amount that the Devices to test obtained in advance combines interior two buses is respectively less than
If balanced threshold, if so, triggering second judgment module.
8. system according to claim 7, which is characterized in that further include:
Electric current obtains module, after the preset time that is delayed at the time of for receiving the remote signalling displacement signal certainly, obtains institute
State the first current value in Devices to test combination on the bus connection switch；
Difference calculating module, for calculating first current value and before at the time of receiving the remote signalling displacement signal
The Devices to test obtained in advance in the preset time period combines the difference of the second current value of interior bus connection switch；
Third judgment module, for judging whether the difference and the ratio of second current value are less than default ratio, if
It is that then the bus disconnecting link closure is not in place, and sends the second alarm signal to the warning system and alerted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610528218.3A CN106199415B (en) | 2016-07-06 | 2016-07-06 | Female process median generatrix disconnecting link method for detecting position and system are fallen based on main station system heat |
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|---|---|---|---|
| CN201610528218.3A CN106199415B (en) | 2016-07-06 | 2016-07-06 | Female process median generatrix disconnecting link method for detecting position and system are fallen based on main station system heat |
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| CN106199415B true CN106199415B (en) | 2019-02-15 |
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| CN201610528218.3A Active CN106199415B (en) | 2016-07-06 | 2016-07-06 | Female process median generatrix disconnecting link method for detecting position and system are fallen based on main station system heat |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106953324A (en) * | 2017-05-27 | 2017-07-14 | 广东电网有限责任公司电力调度控制中心 | One kind is based on the hot female process median generatrix disconnecting link control method and device of main station system |
| CN109596903B (en) * | 2018-12-07 | 2021-01-22 | 国网安徽省电力有限公司黄山供电公司 | Method for judging position of three-phase disconnecting link in bus reversing process |
| CN110414853A (en) * | 2019-08-01 | 2019-11-05 | 广东电网有限责任公司 | Bus heat falls change coefficient and determines method, system, device and readable storage medium storing program for executing |
| CN111208420B (en) * | 2020-02-26 | 2022-02-18 | 南京南瑞继保电气有限公司 | Generator grounding switch state detection method and system based on signal injection |
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