CN105870916B - A kind for the treatment of method and apparatus of high pressure main transformer multistage resonant - Google Patents
A kind for the treatment of method and apparatus of high pressure main transformer multistage resonant Download PDFInfo
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- CN105870916B CN105870916B CN201610221605.2A CN201610221605A CN105870916B CN 105870916 B CN105870916 B CN 105870916B CN 201610221605 A CN201610221605 A CN 201610221605A CN 105870916 B CN105870916 B CN 105870916B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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Abstract
This application discloses a kind for the treatment of method and apparatus of high pressure main transformer multistage resonant, according to current high pressure main transformer information content, whether intelligent decision main transformer occurs resonance, and resonance grade point is compared with preset value, high pressure main transformer resonance process instruction is sent according to comparison result, so as to achieve the purpose that destroy resonance, to avoid artificially resonance point is destroyed by operating series compensation device.Due to be intelligent distinguishing resonance whether occur with resonance grade, main transformer resonance is handled by way of sending and instructing, there is no the problems such as artificial operation and lag, so as to quickly eliminate the security risk of the equipment such as main transformer.
Description
Technical field
This application involves high voltage supply technical field, the more particularly to a kind of processing method and dress of high pressure main transformer multistage resonant
It puts.
Background technology
Current energy supply and demand regional imbalance phenomenon is serious, the remote conveyings electrical engineering such as " transferring electricity from the west to the east " and " sending in nortel south "
Occur therewith.In long distance transmission line, the influence of line inductance is offset usually using series compensation device, so as to stablize
Transmission capacity.Since network system has the capacitor of capacitive in perceptual load and series compensation device, by distance, ring
Border, operating condition intricate factor influence when, resonance phenomena will occur for high-pressure system, can be caused to equipment such as main transformers
Damage.
The measure of reply main transformer resonance at present is mainly according to resonance degree by manually exiting one or more series compensations
Device destroys resonance point.
For the above method, manual operation lag is serious, can not quickly eliminate the security risk of the equipment such as main transformer in this way, from
And resonance seriously affects network system generation.
Invention content
In view of this, the present invention provides a kind of processing method of high pressure main transformer multistage resonant, to realize quickly and effectively
Resonance point is destroyed, so as to achieve the purpose that eliminate the security risk of the equipment such as main transformer.
For this purpose, the technical solution that the present invention solves the technical problem is：Provide a kind of place of high pressure main transformer multistage resonant
Reason method, including：
Obtain high pressure main transformer information content；
According to the high pressure main transformer information content, judge whether main transformer occurs resonance, and the grade of resonance occurs；
Compare the resonance grade point and preset value for differentiating and obtaining, obtain comparison result；
Order is sent according to the comparison result to handle main transformer multistage resonant.
Preferably, it is described according to high pressure main transformer information content, judge whether main transformer occurs resonance, and the grade of resonance occurs,
Including：
Hilbert-Huang transform is carried out to the main transformer information content, obtains spectrum information；
Judged whether that resonance occurs according to the spectrum information；
If resonance occurs, 1/2 time of spectrum information of main transformer information content, 1/3 time, harmonic wave in fundamental wave and 63 times are calculated
Root mean square virtual value；
The root mean square virtual value and the ratio of fundamental wave value are compared with threshold value；
It is when the root mean square virtual value and fundamental wave value ratio are less than threshold value, then again effective to the root mean square of each harmonic
Value is calculated；
When the root mean square virtual value and the ratio of fundamental wave value are more than or equal to threshold value, resonance grade point is obtained.
Preferably, it is described that main transformer multistage resonant is handled according to comparison result transmission order, including：
The comparison result is more than early warning preset value and less than action preset value for resonance grade point, is sent to monitoring backstage
Pre-warning signal.
Preferably, it is described that main transformer multistage resonant is handled according to comparison result transmission order, including：
The comparison result is more than action preset value for the resonance grade point, and sending string to string benefit Control protection system mends
Bypass instruction, while send pre-warning signal to monitoring backstage.
Preferably, it after being handled according to comparison result transmission order main transformer multistage resonant, further includes：
Obtain current high pressure main transformer information content；
According to the high pressure main transformer information content acquired, judge whether main transformer occurs resonance, and occur resonance etc.
Grade；
If within the T1 times, the resonance grade point differentiated each time is both greater than the action preset value, to the string
Mend the bypass instruction that Control protection system transmission acts on another series compensation device.
Preferably, it after string mends Control protection system transmission string benefit bypass instruction, further includes：
Receive the by-pass switch closure signal that string mends Control protection system feedback；
Obtain current high pressure main transformer information content；
According to the high pressure main transformer information content, judge whether main transformer occurs resonance；
If resonance free occurs, the by-pass switch that Control protection system transmission series compensation device is mended to the string disconnects life
It enables.
Preferably, after the string mends the by-pass switch close commands that Control protection system sends series compensation device,
Further comprise：
Receive the by-pass switch cut-off signal that string mends Control protection system feedback；
If within the T2 times, continuous several times receive by-pass switch open and close signal, and Control protection system is mended to string
It sends permanent bypass instruction and the by-pass switch is subjected to permanent disconnection action.
The corresponding above method, the present invention also provides a kind of processing unit of high pressure main transformer multistage resonant, including：
First acquisition unit, for obtaining high pressure main transformer information content；
First judgement unit, for according to the high pressure main transformer information content, judging whether main transformer occurs resonance, and occur humorous
The grade shaken；
First comparing unit, the resonance grade point for being obtained to differentiation are compared with preset value；
Transmitting element carries out process instruction for being sent according to comparison result to main transformer multistage resonant.
Preferably, first judgement unit includes：
Converter unit for carrying out Hilbert-Huang transform to the main transformer information content, obtains spectrum information；
Judgement unit occurs for resonance, and it is humorous that the spectrum information for being obtained according to the converter unit judges whether main transformer occurs
It shakes；
Computing unit, calculate 1/2 time of spectrum information of main transformer information content, 1/3 time, harmonic wave is equal in fundamental wave and 63 times
Root virtual value；
Threshold value comparison unit, for the root mean square virtual value to be compared with fundamental wave value ratio with threshold value；
Resonance grade point acquiring unit, for when the root mean square virtual value is more than threshold value with fundamental wave value ratio, obtaining
Resonance grade point.
Preferably, the transmitting element includes：
First transmission sub-unit, for being more than early warning preset value and less than action for resonance grade point in the comparison result
During preset value, pre-warning signal is sent to monitoring backstage.
Preferably, the transmitting element includes：
Second transmission sub-unit, for when the comparison result is more than action preset value for resonance grade point, being mended to string
Control protection system sends series compensation device bypass instruction.
Preferably, it further includes：
Second acquisition unit is sent for mending Control protection system to string in second transmission sub-unit by series compensation device
After the instruction of road, current high pressure main transformer information content is obtained；
Second judgement unit for the high pressure main transformer information content acquired according to the second acquisition unit, judges to lead
Whether change occurs resonance, and the grade of resonance occurs；
Second comparing unit, for comparing the resonance grade point that second judgement unit differentiates and preset value
Compared with；
First time judging unit, for judging whether the time reaches T1；
Third transmission sub-unit judges that the time reaches T1, and within the T1 times, institute for the first time judging unit
It states the resonance grade point that the second comparing unit differentiates and is both greater than the action preset value, control protection system is mended to the string
System sends the bypass instruction for acting on another series compensation device.
Preferably, it further includes：
First feedback reception unit sends string benefit dress for mending Control protection system to string in second transmission sub-unit
After putting bypass instruction, the by-pass switch closure signal that string mends Control protection system feedback is received；
Third acquiring unit, for receiving the bypass of string benefit Control protection system feedback in first feedback reception unit
Switch after closure signal, obtains current high pressure main transformer information content；
Third judgement unit for the high pressure main transformer information content acquired according to the third acquiring unit, judges to lead
Whether change occurs resonance, and the grade of resonance occurs；
4th transmission sub-unit when differentiating that resonance free occurs for the third judgement unit, is mended control to the string and is protected
Protecting system sends the by-pass switch open command for acting on series compensation device.
Preferably, it further includes：
Second feedback reception unit mends Control protection system transmission to the string for the 4th transmission sub-unit and acts on string
The by-pass switch cut-off signal that string mends Control protection system feedback is received after mending the by-pass switch open command of device；
Second time judging unit, for judging whether the time reaches T2；
5th transmission sub-unit judges that the time reaches T2, and within the T2 times, institute for the second time judging unit
State the first feedback unit, the second feedback unit be sequentially received by-pass switch be closed and cut-off signal when, to it is described string mend
Control protection system sends the instruction of series compensation device permanent bypass.
Relative to the prior art, the beneficial effects of the invention are as follows:According to current high pressure main transformer information content, intelligent decision main transformer
Resonance whether occurs, and the grade of resonance occurs, resonance grade point is compared with preset value, is sent according to comparison result high
Main transformer resonance process instruction is pressed, so as to achieve the purpose that destroy resonance.It avoids manually to be operated according to resonance degree in this way and go here and there
Connection compensation device destroys resonance point, due to be intelligent distinguishing resonance whether occur with resonance grade, pass through the side for sending instruction
Formula handles resonance, the problem of without artificial Operation delay, so as to quickly eliminate the security risk of the equipment such as main transformer.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the flow chart for the method that the present invention realizes processing high pressure main transformer multistage resonant；
Fig. 2 is whether resonance disclosed by the invention occurs method flow diagram with grade discrimination；
Fig. 3 is another embodiment flow chart of the processing method disclosed by the invention for realizing high pressure main transformer multistage resonant；
Fig. 4 is another embodiment flow chart of the processing method disclosed by the invention for realizing high pressure main transformer multistage resonant；
Fig. 5 is another embodiment flow chart of the processing method of the realization high pressure main transformer multistage resonant of disclosure of the invention；
Fig. 6 is the structure chart of the processing unit of the realization high pressure main transformer multistage resonant of disclosure of the invention；
Fig. 7 is whether the resonance of disclosure of the invention occurs and resonance grade discrimination structure drawing of device；
Fig. 8 is another example structure of the processing unit of the realization processing high pressure main transformer multistage resonant of disclosure of the invention
Figure；
Fig. 9 is another example structure of the processing unit of the realization processing high pressure main transformer multistage resonant of disclosure of the invention
Figure；
Figure 10 is another example structure of the processing unit of the realization processing high pressure main transformer multistage resonant of disclosure of the invention
Figure.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the flow chart of the method disclosed in the present application for realizing processing high pressure main transformer multistage resonant, referring to Fig. 1, this Shen
A kind of method of the disclosed processing high pressure main transformer multistage resonant of embodiment please, including：
Step S101, high pressure main transformer information content is obtained；
Wherein, the high pressure main transformer information content includes the information such as the voltage of main transformer, electric current, frequency acquired in real time；
Step S102, according to the high pressure main transformer information content, judge whether main transformer occurs resonance, and occur resonance etc.
Grade；
Step S103, compare the resonance grade point and preset value for differentiating and obtaining, obtain comparison result；
Wherein, the preset value is set in advance according to setting parameter, it can be determined that resonance grade point severity
Value, wherein, preset value includes early warning preset value and action preset value, but be not limited to two that the present embodiment lists it is default
Value.And setting parameter is obtained according to field experience；
Step S104, order is sent according to the comparison result to handle main transformer multistage resonant.
In the present embodiment, by will differentiate that obtained resonance grade point is compared with the preset value, according to different
Comparison result sends corresponding process instruction.In this way when multistage resonant occurs, can intelligent distinguishing resonance grade, and send out in time
Order of losing one's life is handled, and resonance point Operation delay is destroyed by manually exiting one or more series compensation devices so as to solve
The problem of.The peace of the equipment such as main transformer can quickly be eliminated using the processing method of high pressure main transformer multistage resonant disclosed in the present embodiment
Full hidden danger.
Optionally, in another embodiment of the present invention, Fig. 2 is whether resonance disclosed by the invention occurs and grade discrimination side
The flow chart of method, with reference to figure 2, whether the resonance occurs and Grade Judgment, including：
Step S201, Hilbert-Huang transform is carried out to the voltage signal in the high pressure main transformer information content of acquisition, obtains electricity
Press the spectrum information of sampled signal；
Wherein, it is described that Hilbert-Huang transform is carried out to voltage signal, including：
Voltage sampling signal in main transformer information content is subjected to empirical mode decomposition, obtains several intrinsic mode functions；
Hilbert transform is carried out to each intrinsic mode function, obtains corresponding hilbert spectrum；
The hilbert spectrum for summarizing all intrinsic mode functions obtains the spectrum information of voltage sampling signal.
Step S202, judged whether that resonance occurs according to the spectrum information of the voltage sampling signal, if resonance occurs,
Step S203 is performed, if resonance does not occur, performs step S201；
Wherein, when in addition to the spectrogram of intrinsic frequency, also there are other frequencies in the spectrum information of the voltage sampling signal
Spectrogram, then differentiate that resonance has occurred in main transformer, otherwise, it is determined that resonance free occur.
Step S203：According to the spectrum information of the voltage sampling signal, 1/2 time, 1/3 time, fundamental wave and 63 are calculated
The root mean square virtual value of secondary interior harmonic wave；
Step S204：The root mean square virtual value of each harmonic and the ratio of fundamental wave value are compared with threshold value, such as
Fruit is less than threshold value, then performs step S203, otherwise enter step S205；
Wherein, the threshold value takes 1.1 in the present embodiment, and the value of threshold value is obtained according to experiment experience, can be effective
The root mean square virtual value of resonance grade discrimination more accurately each harmonic is extracted, if the root mean square of each harmonic has
The ratio of valid value and fundamental wave value is less than 1.1, then the root mean square virtual value that S203 extracts each harmonic again is entered step, if institute
It states the root mean square virtual value of each harmonic and is more than or equal to 1.1 with the ratio of fundamental wave value, then it is assumed that the root mean square of each harmonic
Virtual value and the ratio of fundamental wave value reach the precision of resonance grade discrimination, enter step S205, carry out sentencing for resonance grade size
Not.
Step S205：Obtain resonance grade point.
Wherein, using the root mean square virtual value and the ratio of fundamental wave value as resonance grade point, when institute's resonance grade point is got over
Greatly, show that resonance higher grade, conversely, resonance lower grade.Resonance grade point is defeated as last resonance grade discrimination
Go out result.
As it can be seen that in the present embodiment, empirical modal is carried out by the voltage signal in the high pressure main transformer information content that will obtain
Decomposition obtains several intrinsic mode functions, and carries out Hilbert transform to each intrinsic mode function, is wished accordingly
You compose Bert, finally summarize the obtained hilbert spectrum of all intrinsic mode functions, obtain voltage sampling signal
Spectrum information.According to the spectrum information summarized, when differentiation obtains other frequency informations except intrinsic frequency, then it is assumed that main
Resonance has occurred in change.
When differentiation obtains that resonance occurs, then the root mean square virtual value of each harmonic is calculated, and by the root mean square virtual value
Ratio is worth to be compared with threshold value with fundamental wave, is worth ratio so as to obtain effective root mean square virtual value and fundamental wave, so as to root
It is worth the size of ratio in judgement resonance grade, the resonance grade discrimination in this implementation according to effective root mean square virtual value and fundamental wave
Method, the interference generated during the differentiation of high pressure main transformer resonance grade can be excluded, and pass through preset threshold
Value carries out the interference that resonance grade discrimination eliminates human factor, so as to improve the precision of resonance grade discrimination.
Optionally, in another embodiment of the present invention, it is described according to comparison result send order to main transformer multistage resonant into
Row processing, including：
Preset value is acted when the comparison result is more than early warning preset value and is less than for resonance grade point, is sent out to monitoring backstage
Send pre-warning signal.
Wherein, the pre-warning signal can be divided into different grades of early warning, for example, slightly, seriously, continue it is serious etc..
The monitoring backstage can be shown after receiving pre-warning signal by display or the form of audio alert notifies work
Make the current resonance conditions of personnel.
In this example, the resonance grade point is more than early warning preset value and less than action preset value, it can be understood as, light
It spends lower of resonance conditions and sends pre-warning signal to monitoring backstage, for professional to be reminded to take appropriate measures.In addition when humorous
The grade point that shakes is less than early warning preset value, it can be assumed that main transformer resonance degree is smaller, is not enough to damage main transformer equipment,
Therefore without operation.
Optionally, in another embodiment of the present invention, it is described according to comparison result send order to main transformer multistage resonant into
Row processing, including：
The comparison result is more than action preset value for the resonance grade point, and sending string to string benefit Control protection system mends
Bypass instruction, while send pre-warning signal to monitoring backstage.
In the present embodiment, the resonance grade point differentiated is more than action preset value, it can be understood as resonance grade reaches
Severity then mends Control protection system to string and sends string benefit bypass instruction, by the bypass of the series compensation device of a circuit
Switch is closed, and makes series compensation device short-circuit, while is sent pre-warning signal after monitoring and alarmed.
Fig. 3 is another embodiment flow chart of the method disclosed in the present application for realizing processing high pressure main transformer multistage resonant, is joined
See Fig. 3, the processing method of high pressure main transformer multistage resonant disclosed in another embodiment of the application, including:
Step S301, high pressure main transformer information content is obtained；
Step S302, according to the high pressure main transformer information content, judge whether main transformer occurs resonance, and occur resonance etc.
Grade, if judging, resonance occurs for main transformer, performs step S303；
Step S303, compare the resonance grade point and preset value for differentiating and obtaining, obtain comparison result；
Step S304, the comparison knot of action preset value is more than according to the resonance grade point as a result, mending control protection to string
System sends string and mends bypass instruction, while sends pre-warning signal to monitoring backstage；
Step S305, current high pressure main transformer information content is obtained；
Step S306, according to current high pressure main transformer information content, judge whether main transformer occurs resonance, and occur resonance etc.
Grade；If judging, resonance occurs for main transformer, performs step S307；
Step S307, compare the resonance grade point and preset value for differentiating and obtaining, obtain comparison result；
Step S308, judge whether the result is that resonance grade point is more than action preset value, if so, performing step
S309；
Step S309, differentiate whether the resonance grade point is more than more than the duration of the comparison result of action preset value
Time T1, if so, step S310 is performed, if it is not, then performing step S305；
Wherein, since the time T1 refer to the timing starting to obtain current high pressure main transformer information content, is according to scene
The time of experience setting；
Step S310, the bypass instruction of another series compensation device is acted on to string benefit Control protection system transmission.
By differentiating that resonance occurs for main transformer, and continues the comparison result differentiated in time interval T1 all in this example
It is that resonance grade point is both greater than the action preset value, then mending Control protection system transmission to the string after short delay acts on separately
The bypass instruction of one series compensation device cuts off another circuit series compensation device from high-pressure system, resonance is accelerated to point out in this way
It is bad, reduce influence of the main transformer resonance to equipment.
For the present embodiment it is to be understood that during higher resonance severity, one series compensation device of bypass cannot eliminate master
Become resonance, in the presence of resonance continues, accelerate the destruction of main transformer resonance point by bypassing two series compensation devices.
The technical solution of the application is not limited to only cut off two lines road series compensation device.
Fig. 4 is another embodiment flow chart of the method disclosed in the present application for realizing processing high pressure main transformer multistage resonant, is joined
See Fig. 4, the processing method disclosed in the present application for realizing high pressure main transformer multistage resonant, including：
Step S401, high pressure main transformer information content is obtained；
Step S402, according to the high pressure main transformer information content, judge whether main transformer occurs resonance, and occur resonance etc.
Grade；If judging, resonance occurs for main transformer, performs step S403；
Step S303, compare the resonance grade point and preset value for differentiating and obtaining, obtain comparison result；
Step S304, the comparison knot of action preset value is more than according to the resonance grade point as a result, mending control protection to string
System sends string and mends bypass instruction, while sends pre-warning signal to monitoring backstage；
Step S305, current high pressure main transformer information content is obtained；
Step S306, according to current high pressure main transformer information content, judge whether main transformer occurs resonance, and occur resonance etc.
Grade, if judging resonance free, performs step S307；
Step S307, it mends Control protection system to string and sends series compensation device by-pass switch open command.
In the present embodiment when differentiation, which obtains resonance grade point, is more than action preset value, mend Control protection system to string and send
Series compensation device bypass instruction, by-pass switch is closed, and is cut off so as to which series compensation device is sent in high-tension line, is obtained when differentiating again
Resonance free occurs, then mending Control protection system to string sends series compensation device by-pass switch open command, has been bypassed so that described
Series compensation device accesses high-tension line again.
The present embodiment is wanted it is to be understood that when satisfaction one series compensation device of bypass just can eliminate main transformer resonance
Series compensation device is put into network system again, so that series compensation device offsets line electricity in long distance transmission line
The influence of sense, so as to stablize transmission capacity.
Fig. 5 is another embodiment flow chart disclosed in the present application, and referring to Fig. 5, realization high pressure main transformer disclosed in the present application is more
In the processing method of grade resonance, including：
Step S501, high pressure main transformer information content is obtained；
Step S502, according to the high pressure main transformer information content, judge whether main transformer occurs resonance, and occur resonance etc.
Grade, if judging, resonance occurs for main transformer, performs step S503；
Step S503, compare the resonance grade point and preset value for differentiating and obtaining, obtain comparison result；
Step S504, the comparison knot of action preset value is more than according to the resonance grade point as a result, mending control protection to string
System sends string and mends bypass instruction, while sends pre-warning signal to monitoring backstage；
Step S505, the by-pass switch closure signal that string mends Control protection system feedback is received；
Step S506, current high pressure main transformer information content is obtained；
Step S607, according to current high pressure main transformer information content, judge whether main transformer occurs resonance, and occur resonance etc.
Grade, if judging resonance free, performs step S508；
Step S508, it mends Control protection system to string and sends string benefit by-pass switch open command；
Step S509, the by-pass switch cut-off signal that string mends Control protection system feedback is received；
Step S510, judge that reception by-pass switch has been closed successively and whether the duration of cut-off signal is more than the time
T2, if so, step 511 is performed, if it is not, then performing step 501；
Since wherein described T2 refer to the timing starting to obtain current high pressure main transformer information content, is set according to field experience
The fixed time；
Step S511, it mends Control protection system to string and sends the instruction of series compensation device permanent bypass.
By the by-pass switch to receiving, closure signal has been supervised for cut-off signal and by-pass switch in the present embodiment
Control, when meeting within the T2 times of setting, the by-pass switch of series compensation device is continuously closed and disconnects, and be currently received
String to mend Control protection system feedback signal be by-pass switch cut-off signal, it is rear to string mend Control protection system send it is permanent
The by-pass switch is carried out permanent disconnection action by bypass instruction.Since series compensation device repeatedly bypasses caused by resonance, table
Bright series compensation device there are problems that causing main transformer that resonance occurs in itself, so to be carried out to series compensation device permanent other
Series compensation device is no longer thrown on road again.
The embodiment further comprises that mending Control protection system to string sends series compensation device by-pass switch close command
Afterwards, the by-pass switch closure signal that string mends Control protection system feedback is not received, when according to current high pressure main transformer information
Amount judges that main transformer has occurred resonance, and when resonance grade point is more than action preset value, continues to mend Control protection system hair to string
When sending by-pass switch close command, string mends Control protection system and starts short delayed startup failure and far jump function, this side of tripping is opened
It closes and offside switchs, explode so as to prevent lasting resonance from causing main transformer mechanical damage.
Based on the above method, Fig. 6 is the structure chart of the processing unit of the realization high pressure main transformer multistage resonant of disclosure of the invention, ginseng
Seeing Fig. 6, the present invention realizes the device of high pressure main transformer multistage resonant processing, including：
First acquisition unit 101, the first judgement unit 102, the first comparing unit 103 and transmitting element 104.
Wherein, first acquisition unit 101 obtains high pressure main transformer information content, and the main transformer information content includes the electricity of main transformer
The information such as pressure, electric current.The high pressure main transformer letter information amount that first judgement unit 102 is obtained according to the first acquisition unit 101 is sentenced
Whether other main transformer occurs the grade that resonance and resonance occur.When first judgement unit 102 differentiates obtain that resonance occurs, and
Obtain the grade of main transformer resonance, the resonance grade that first comparing unit 103 obtains first judgement unit 102 differentiation
Value is compared with preset value, obtains comparison result.The transmitting element 104 is sent according to the comparison result to main transformer multistage
Resonance carries out process instruction.
It should be noted that in the processing unit of high pressure main transformer multistage resonant disclosed in the present embodiment, the tool of each unit
Body running process refers to the embodiment of the method for corresponding diagram 1, and details are not described herein again.
Preferably, in another embodiment, Fig. 7 is whether the resonance of disclosure of the invention occurs and resonance grade discrimination device knot
Composition, referring to Fig. 7,
First judgement unit 102 includes：Judgement unit 1022, computing unit occur for converter unit 1021, resonance
1023rd, threshold value comparison unit 1024, resonance grade point acquiring unit 1025.
Wherein, the converter unit 1021 wishes the high pressure main transformer information content that the first acquisition unit 101 obtains
That Bert Huang, obtains spectrum information.The resonance occurs what judgement unit 1022 was obtained according to the converter unit 1021
Spectrum information judges whether main transformer occurs resonance.Resonance is obtained when the differentiation of judgement unit 1022 occurs for the resonance, it is described
Computing unit 1023 start to calculate 1/2 time of the spectrum information, 1/3 time, the root mean square of harmonic wave is effective in fundamental wave and 63 times
The root mean square virtual value is compared by value, the threshold value comparison unit 1024 with fundamental wave value ratio with threshold value, when described equal
When root virtual value is less than threshold value with fundamental wave value ratio, then the root mean square that the computing unit 1023 extracts each harmonic again has
Valid value, until the root mean square virtual value of extraction and the ratio of fundamental wave value are more than or equal to threshold value.When the root mean square virtual value and base
When wave number ratio is more than threshold value, the resonance grade point acquiring unit 1025 obtains resonance grade point.
It should be noted that in the processing unit of high pressure main transformer multistage resonant disclosed in the present embodiment, the tool of each unit
Body running process refers to the embodiment of the method for corresponding diagram 2, and details are not described herein again.
Preferably, in another embodiment, the transmitting element includes：
First transmission sub-unit 1041, for being more than early warning preset value for resonance grade point in the comparison result and being less than
When acting preset value, pre-warning signal is sent to monitoring backstage.It realizes that when resonance occurs alarmed to staff, is convenient for
Staff is handled.
Preferably, in another embodiment, the transmitting element includes：
Second transmission sub-unit 1042, for the comparison result for resonance grade point be more than action preset value when, to
String mends Control protection system and sends series compensation device bypass instruction.Realize and in main transformer grade reach certain severity, pass through to
String mends Control protection system and sends series compensation device bypass instruction, and Intelligent treatment resonance problems avoid the lag issues of artificial treatment
Generation.
Fig. 8 is another example structure of the processing unit of the realization processing high pressure main transformer multistage resonant of disclosure of the invention
Figure, referring to Fig. 8, discloses the high pressure main transformer multistage resonant processing unit of another embodiment, including：
First acquisition unit 101 obtains high pressure main transformer information content.First judgement unit 102 is according to the first acquisition unit
The 101 high pressure main transformer letter information amounts obtained differentiate whether main transformer occurs the grade that resonance and resonance occur.When the described first differentiation
The differentiation of unit 102 obtains resonance occurring, and obtain the grade of main transformer resonance, and the first comparing unit 103 differentiates described first
Unit 102 differentiates that obtained resonance grade point is compared with early warning preset value and action preset value, obtains comparison result.Second
Transmission sub-unit 1041 is more than the comparison result of action preset value according to resonance grade point, and mending Control protection system to string sends string
Mend unit protection instruction.
Second acquisition unit 201 mends Control protection system to string in second transmission sub-unit 1041 and sends series compensation device
After bypass instruction, current high pressure main transformer information content is obtained.
The high pressure main transformer information content acquired according to the second acquisition unit 201, the second judgement unit 202 judge master
Whether change occurs resonance, and the grade of resonance occurs；When second judgement unit 202 differentiates that resonance occurs for main transformer, second
The resonance grade point that comparing unit 203 obtains second judgement unit 202 differentiation is compared with preset value.When described
After two comparing units 203 obtain comparison result of the resonance grade point more than action preset value, first time judging unit 205 judges
Second comparing unit 203 differentiates that obtained resonance grade point is both greater than whether the action preset value time reaches T1, if
Not up to T1, then the second acquisition unit 201 continue to obtain high pressure main transformer information content, second judgement unit 202 continues
Whether the resonance is occurred and resonance grade differentiates, until second comparing unit 203 differentiates obtained resonance etc.
The grade value both greater than described action preset value time reaches T1.When the resonance grade point that second comparing unit 203 differentiation obtains
The both greater than described action preset value time reaches T1, then third transmission sub-unit 205 is mended Control protection system to the string and sent
Act on the bypass instruction of another series compensation device.
The present embodiment judges that second comparing unit 203 differentiates what is obtained by the first time judging unit 204
Resonance grade point is both greater than whether the action preset value time reaches T1, to realize when resonance grade continues seriously to occur,
The bypass of another series compensation device is acted on to the string benefit Control protection system transmission by the third transmission sub-unit 205
Instruction is realized and bypasses a plurality of series compensation device come the purpose for the resonance that accelerates the failure.
It should be noted that in the processing unit of high pressure main transformer multistage resonant disclosed in the present embodiment, the tool of each unit
Body running process refers to the embodiment of the method for corresponding diagram 3, and details are not described herein again.
Fig. 9 is another example structure of the processing unit of the realization processing high pressure main transformer multistage resonant of disclosure of the invention
Figure, referring to Fig. 9, discloses the high pressure main transformer multistage resonant processing unit of another embodiment, including：
First acquisition unit 101 obtains high pressure main transformer information content.First judgement unit 102 is according to the first acquisition unit
The 101 high pressure main transformer letter information amounts obtained differentiate whether main transformer occurs the grade that resonance and resonance occur.When the described first differentiation
The differentiation of unit 102 obtains resonance occurring, and obtain the grade of main transformer resonance, and the first comparing unit 103 differentiates described first
Unit 102 differentiates that obtained resonance grade point is compared with early warning preset value and action preset value, obtains comparison result.Second
Transmission sub-unit 1042 is more than the comparison result of action preset value according to resonance grade point, and mending Control protection system to string sends string
Mend unit protection instruction.
First feedback reception unit 300 mends Control protection system to string in second transmission sub-unit 1042 and sends string benefit
After device bypass instruction, the by-pass switch closure signal that string mends Control protection system feedback is received.Third acquiring unit 301 exists
For the by-pass switch of the reception of the first feedback reception unit 300 string benefit Control protection system feedback after closure signal, obtaining ought
Preceding high pressure main transformer information content.Third judgement unit 302 is believed according to the high pressure main transformer that the third acquiring unit 301 acquires
Breath amount, judges whether main transformer occurs resonance, and the grade of resonance occurs.When the third judgement unit 303 differentiates resonance free hair
When raw, the by-pass switch that the 4th transmission sub-unit 304 acts on series compensation device to the string benefit Control protection system transmission disconnects
Instruction.
The present embodiment realizes that resonance is destroyed after a series compensation device is bypassed, according to the third judgement unit 302
When differentiation obtains resonance free generation, the 4th transmission sub-unit 304 mends Control protection system transmission to the string and acts on string
Mend the by-pass switch open command of device so that the series compensation device puts into network system again, plays counteracting line electricity again
The effect of sense.
It should be noted that in the processing unit of high pressure main transformer multistage resonant disclosed in the present embodiment, the tool of each unit
Body running process refers to the embodiment of the method for corresponding diagram 4, and details are not described herein again.
Figure 10 is another example structure of the processing unit of the realization processing high pressure main transformer multistage resonant of disclosure of the invention
Figure, referring to Figure 10,
The high pressure main transformer multistage resonant processing unit of another embodiment is disclosed, including：
First acquisition unit 101 obtains high pressure main transformer information content.First judgement unit 102 is according to the first acquisition unit
The 101 high pressure main transformer letter information amounts obtained differentiate whether main transformer occurs the grade that resonance and resonance occur.When the described first differentiation
The differentiation of unit 102 obtains resonance occurring, and obtain the grade of main transformer resonance, and the first comparing unit 103 differentiates described first
Unit 102 differentiates that obtained resonance grade point is compared with early warning preset value and action preset value, obtains comparison result.Second
Transmission sub-unit 1042 is more than the comparison result of action preset value according to resonance grade point, and mending Control protection system to string sends string
Mend unit protection instruction.
First feedback reception unit 300 mends Control protection system to string in second transmission sub-unit 1042 and sends string benefit
After device bypass instruction, the by-pass switch closure signal that string mends Control protection system feedback is received.Third acquiring unit 301 exists
For the by-pass switch of the reception of the first feedback reception unit 300 string benefit Control protection system feedback after closure signal, obtaining ought
Preceding high pressure main transformer information content.Third judgement unit 302 is believed according to the high pressure main transformer that the third acquiring unit 301 acquires
Breath amount, judges whether main transformer occurs resonance, and the grade of resonance occurs.When the third judgement unit 302 differentiates resonance free hair
When raw, the by-pass switch that the 4th transmission sub-unit 304 acts on series compensation device to the string benefit Control protection system transmission disconnects
Instruction.
The by-pass switch of series compensation device is acted on to the string benefit Control protection system transmission in the 4th transmission sub-unit 304
After open command, the second feedback reception unit 305 receives the by-pass switch cut-off signal that string mends Control protection system feedback.
Second time judging unit 306 judge first feedback reception unit 300, the second feedback reception unit 305 according to
The secondary by-pass switch that receives has been closed with whether the cut-off signal duration reaches T2, if not up to T2, described first obtains
Unit 101 is taken to continue to obtain high pressure main transformer information content, first judgement unit 102 continues whether harmony to occur to the resonance
Grade of shaking is differentiated, until first feedback reception unit 300, the second feedback reception unit 305 are sequentially received bypass
Switch has been closed and whether the cut-off signal duration reaches T2.When first feedback reception unit 300, second feedback connects
It receives unit 305 and is sequentially received by-pass switch and has been closed and reach T2 with the cut-off signal duration, then the 5th transmission sub-unit
307 mend Control protection system to the string sends the instruction of series compensation device permanent bypass.
The present embodiment differentiates that the first feedback reception unit 300, second feedback connects by the second time judgement unit 306
Receipts unit 305 is sequentially received by-pass switch and has been closed with whether the cut-off signal duration reaches T2, it can be understood as, string
Device is mended whether because repeatedly bypass occurs for resonance, if the above problem occurs, shows that series compensation device exists in itself and causes master
Become the problem of resonance occurs, therefore the 5th transmission sub-unit 307 mends Control protection system to the string and sends series compensation device
Permanent bypass instructs, so permanent bypass is carried out to series compensation device, so that staff carries out the series compensation device
Repair.
It should be noted that in the processing unit of high pressure main transformer multistage resonant disclosed in the present embodiment, the tool of each unit
Body running process refers to the embodiment of the method for corresponding diagram 5, and details are not described herein again.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide range caused.
Claims (12)
1. a kind of processing method of high pressure main transformer multistage resonant, which is characterized in that including：
Obtain high pressure main transformer information content；
According to the high pressure main transformer information content, judge whether main transformer occurs resonance, and the grade of resonance occurs；
Compare the resonance grade point and preset value for differentiating and obtaining, obtain comparison result；
Order is sent according to the comparison result to handle main transformer multistage resonant；
It is described to judge whether main transformer occurs resonance according to high pressure main transformer information content, and the grade of resonance occurs, including：
Hilbert-Huang transform is carried out to the high pressure main transformer information content, obtains spectrum information；
Judged whether that resonance occurs according to the spectrum information；
If resonance occurs, calculate 1/2 time of spectrum information of main transformer information content, 1/3 time, harmonic wave is square in fundamental wave and 63 times
Root virtual value；
The root mean square virtual value and the ratio of fundamental wave value are compared with threshold value；
When the root mean square virtual value and fundamental wave value ratio are less than threshold value, then again to the root mean square virtual value of each harmonic into
Row calculates；
When the root mean square virtual value and the ratio of fundamental wave value are more than or equal to threshold value, by the root mean square virtual value and fundamental wave value
Ratio obtained as resonance grade point.
It is 2. according to the method described in claim 1, it is characterized in that, described humorous to main transformer multistage according to comparison result transmission order
It shakes and is handled, including：
The comparison result is more than early warning preset value and less than action preset value for resonance grade point, and early warning is sent to monitoring backstage
Signal.
It is 3. according to the method described in claim 1, it is characterized in that, described humorous to main transformer multistage according to comparison result transmission order
It shakes and is handled, including：
The comparison result is more than action preset value for the resonance grade point, and sending string to string benefit Control protection system mends bypass
Instruction, while send pre-warning signal to monitoring backstage.
It is 4. according to the method described in claim 3, it is characterized in that, humorous to main transformer multistage according to comparison result transmission order
It shakes after being handled, further includes：
Obtain current high pressure main transformer information content；
According to the high pressure main transformer information content acquired, judge whether main transformer occurs resonance, and the grade of resonance occurs；
If within the T1 times, the resonance grade point differentiated each time is both greater than the action preset value, and control is mended to the string
Protection system transmission processed acts on the bypass instruction of another series compensation device.
5. according to the method described in claim 3, it is characterized in that, to string mend Control protection system send string mend bypass instruction it
Afterwards, it further includes：
Receive the by-pass switch closure signal that string mends Control protection system feedback；
Obtain current high pressure main transformer information content；
According to the high pressure main transformer information content, judge whether main transformer occurs resonance；
If resonance free occurs, the by-pass switch ON- and OFF- command of Control protection system transmission series compensation device is mended to the string.
6. according to the method described in claim 5, it is characterized in that, mending Control protection system to the string sends series compensation dress
After the by-pass switch ON- and OFF- command put, further comprise：
Receive the by-pass switch cut-off signal that string mends Control protection system feedback；
If within the T2 times, continuous several times receive by-pass switch open and close signal, and mending Control protection system to string sends
The by-pass switch is carried out permanent disconnection action by permanent bypass instruction.
7. a kind of processing unit of high pressure main transformer multistage resonant, which is characterized in that including：
First acquisition unit, for obtaining high pressure main transformer information content；
First judgement unit, for according to the high pressure main transformer information content, judging whether main transformer occurs resonance, and resonance occurs
Grade；
First comparing unit, the resonance grade point for being obtained to differentiation are compared with preset value；
Transmitting element carries out process instruction for being sent according to comparison result to main transformer multistage resonant；
First judgement unit includes：
Converter unit for carrying out Hilbert-Huang transform to the main transformer information content, obtains spectrum information；
Judgement unit occurs for resonance, and the spectrum information for being obtained according to the converter unit judges whether main transformer occurs resonance；
Computing unit, calculate 1/2 time of spectrum information of main transformer information content, 1/3 time, in fundamental wave and 63 times harmonic wave root mean square
Virtual value；
Threshold value comparison unit, for the root mean square virtual value to be compared with fundamental wave value ratio with threshold value；
Resonance grade point acquiring unit, for when the root mean square virtual value is more than threshold value with fundamental wave value ratio, obtaining resonance
Grade point.
8. device according to claim 7, which is characterized in that the transmitting element includes：
First transmission sub-unit, for being more than early warning preset value for resonance grade point in the comparison result and being preset less than action
During value, pre-warning signal is sent to monitoring backstage.
9. device according to claim 7, which is characterized in that the transmitting element includes：
Second transmission sub-unit, for when the comparison result is more than action preset value for resonance grade point, control to be mended to string
Protection system sends series compensation device bypass instruction.
10. device according to claim 9, which is characterized in that further include：
Second acquisition unit refers to for mending Control protection system to string in second transmission sub-unit and sending series compensation device and bypass
After order, current high pressure main transformer information content is obtained；
Second judgement unit for the high pressure main transformer information content acquired according to the second acquisition unit, judges that main transformer is
No generation resonance, and the grade of resonance occurs；
Second comparing unit, the resonance grade point for differentiating to second judgement unit are compared with preset value；
First time judging unit, for judging whether the time reaches T1；
Third transmission sub-unit judges that the time reaches T1, and within the T1 times for the first time judging unit, described
The resonance grade point that two comparing units differentiate is both greater than the action preset value, and Control protection system hair is mended to the string
Send the bypass instruction for acting on another series compensation device.
11. device according to claim 9, which is characterized in that further include：
First feedback reception unit is sent for mending Control protection system to string in second transmission sub-unit by series compensation device
After the instruction of road, the by-pass switch closure signal that string mends Control protection system feedback is received；
Third acquiring unit, for receiving the by-pass switch of string benefit Control protection system feedback in first feedback reception unit
After closure signal, current high pressure main transformer information content is obtained；
Third judgement unit for the high pressure main transformer information content acquired according to the third acquiring unit, judges that main transformer is
No generation resonance, and the grade of resonance occurs；
When differentiating that resonance free occurs for the third judgement unit, control protection system is mended to the string for 4th transmission sub-unit
System sends the by-pass switch open command for acting on series compensation device.
12. according to the devices described in claim 11, which is characterized in that further include：
Second feedback reception unit mends Control protection system transmission to the string for the 4th transmission sub-unit and acts on string benefit dress
The by-pass switch cut-off signal that string mends Control protection system feedback is received after the by-pass switch open command put；
Second time judging unit, for judging whether the time reaches T2；
5th transmission sub-unit judges that the time reaches T2, and within the T2 times for the second time judging unit, described
One feedback unit, the second feedback unit be sequentially received by-pass switch be closed and cut-off signal when, to it is described string mend control
Protection system sends the instruction of series compensation device permanent bypass.
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