CN109470978A - Determine the method and device of the shorted-turn fault of reactor - Google Patents
Determine the method and device of the shorted-turn fault of reactor Download PDFInfo
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
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Abstract
The invention discloses a kind of method and devices of the shorted-turn fault of determining reactor.Wherein, this method comprises: predefining the reference voltage difference signal between each pair of magnetic field detectors of above-mentioned reactor, wherein be provided with multipair magnetic field detectors outside the winding coil of above-mentioned reactor in the case where reactor is in normal operating condition；In the operational process of above-mentioned reactor, the voltage differential signal between above-mentioned each pair of magnetic field detectors is obtained；By comparing said reference voltage differential signal and above-mentioned voltage differential signal, determine above-mentioned reactor with the presence or absence of shorted-turn fault.The present invention solves the technical issues of lower for the detection efficiency of the shorted-turn fault of dry-type iron-core reactor in the prior art, the stable operation of dry-type iron-core reactor can not be effectively ensured.
Description
Technical field
The present invention relates to short trouble detection fields, in particular to a kind of shorted-turn fault of determining reactor
Method and device.
Background technique
With the extensive development of high voltage power network, voltage class is higher and higher, the distance of electrical energy transportation increasingly far with
And the increase of buried cable trnamission capacity, so that the capacitive charge power of transmission line of electricity is become larger.Due to past at transmission line of electricity investment initial stage
It is less toward transmission capacity, and each bulk power grid inductive compensation off-capacity, therefore threat is brought to equipment safety operation, in order to tie up
The safe operation of electric system is protected, capacity effect is solved, shunt reactor, dry type iron is generally accessed in extra high voltage network
Core device is a kind of important reactive power compensator in electric system.Currently, more failure occurs for dry-type iron-core reactor
It is turn-to-turn short circuit caused by different situations, and then develops the electric power accident of forming apparatus scaling loss.Therefore effectively detection turn-to-turn short circuit event
Barrier is the key that guarantee dry-type iron-core reactor stable operation.
It is directed to dry-type iron-core reactor shorted-turn fault at present, the detection method used both at home and abroad has: offline inspection method
And on_line detection method.Wherein, offline inspection method mainly checks inter-turn insulation defect.But offline inspection method is lacked there are following
It falls into: first is that not can accurately reflect equipment operation condition；Second is that bringing economic loss due to stopping transport；It is destroyed third is that the test has
Property, therefore the service life of equipment can shorten；On_line detection method is mainly power direction detection method, but this method step is more, behaviour
Make complicated.The short circuit less for the number of turns, i.e., slight turn-to-turn short circuit, sensitivity are insufficient.
For above-mentioned problem, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of method and devices of the shorted-turn fault of determining reactor, at least to solve
It is lower for the detection efficiency of the shorted-turn fault of dry-type iron-core reactor in the prior art, dry-type iron-core can not be effectively ensured
The technical issues of stable operation of reactor.
According to an aspect of an embodiment of the present invention, a kind of method of the shorted-turn fault of determining reactor is provided,
It include: to be predefined between each pair of magnetic field detectors of above-mentioned reactor in the case where reactor is in normal operating condition
Reference voltage difference signal, wherein multipair magnetic field detectors are provided with outside the winding coil of above-mentioned reactor；In above-mentioned reactance
In the operational process of device, the voltage differential signal between above-mentioned each pair of magnetic field detectors is obtained；By comparing said reference voltage
Difference signal and above-mentioned voltage differential signal determine above-mentioned reactor with the presence or absence of shorted-turn fault.
Further, the reference voltage difference signal predefined between each pair of magnetic field detectors of above-mentioned reactor includes:
The voltage signal of above-mentioned each pair of magnetic field detectors is obtained in advance, wherein above-mentioned voltage signal includes: to be set to above-mentioned winding coil
The first voltage signal of first magnetic field detectors of external upper position, the lower position being set to outside above-mentioned winding coil
The second magnetic field detectors second voltage signal, above-mentioned upper position and above-mentioned lower position are symmetrical arranged；According to above-mentioned
Difference between one voltage signal and above-mentioned second voltage signal determines that the reference voltage between above-mentioned each pair of magnetic field detectors is poor
Signal.
Further, by comparing said reference voltage differential signal and above-mentioned voltage differential signal, above-mentioned reactor is determined
It include: to be compared by comparing said reference voltage differential signal and above-mentioned voltage differential signal with the presence or absence of shorted-turn fault
Relatively result；In the case where above-mentioned comparison result is the first comparison result, determine that shorted-turn fault is not present in above-mentioned reactor,
Wherein, above-mentioned first comparison result is used to indicate said reference voltage differential signal and above-mentioned voltage differential signal is same or similar；
In the case where above-mentioned comparison result is the second comparison result, determine that there are shorted-turn faults for above-mentioned reactor, wherein above-mentioned
It is different with above-mentioned voltage differential signal that second comparison result is used to indicate said reference voltage differential signal.
Further, determine above-mentioned reactor there are in the case where shorted-turn fault, the above method further include: control
Alarm device outputting alarm information, there are shorted-turn faults for characterizing above-mentioned reactor for above-mentioned warning information.
Further, the structure of the coil of above-mentioned multipair magnetic field detectors is identical with the number of turns, and above-mentioned first magnetic field is visited
It surveys device and the structure of the coil of above-mentioned second magnetic field detectors is identical with the number of turns.
Further, the absolute value of the difference between said reference voltage differential signal and above-mentioned voltage differential signal is bigger,
Then show the difference that above-mentioned shorted-turn fault is more serious, between said reference voltage differential signal and above-mentioned voltage differential signal
Absolute value is smaller, then shows that above-mentioned shorted-turn fault is not serious.
According to another aspect of an embodiment of the present invention, a kind of dress of the shorted-turn fault of determining reactor is additionally provided
It sets, comprising: module is predefined, for predefining above-mentioned reactor in the case where reactor is in normal operating condition
Each pair of magnetic field detectors between reference voltage difference signal, wherein be provided with outside the winding coil of above-mentioned reactor multipair
Magnetic field detectors；First obtains module, in the operational process of above-mentioned reactor, obtain above-mentioned each pair of magnetic field detectors it
Between voltage differential signal；Determining module, for said reference voltage differential signal and above-mentioned voltage differential signal by comparing, really
Fixed above-mentioned reactor whether there is shorted-turn fault.
Further, above-mentioned predetermined module includes: preparatory acquiring unit, is visited for obtaining above-mentioned each pair of magnetic field in advance
Survey the voltage signal of device, wherein above-mentioned voltage signal includes: the first magnetic for being set to the upper position outside above-mentioned winding coil
The first voltage signal of field detector, is set to the second of the second magnetic field detectors of the lower position outside above-mentioned winding coil
Voltage signal, above-mentioned upper position and above-mentioned lower position are symmetrical arranged；Determination unit, for according to above-mentioned first voltage signal
Difference between above-mentioned second voltage signal determines the reference voltage difference signal between above-mentioned each pair of magnetic field detectors.
According to another aspect of an embodiment of the present invention, a kind of storage medium is additionally provided, above-mentioned storage medium includes storage
Program, wherein above procedure operation when control above-mentioned storage medium where equipment execute any one it is above-mentioned determine electricity
The method of the shorted-turn fault of anti-device.
According to another aspect of an embodiment of the present invention, a kind of processor is additionally provided, above-mentioned processor is used to run program,
Wherein, the method for the shorted-turn fault of the above-mentioned determination reactor of any one is executed when above procedure is run.
In embodiments of the present invention, by predefining above-mentioned electricity in the case where reactor is in normal operating condition
Reference voltage difference signal between each pair of magnetic field detectors of anti-device, wherein be provided with outside the winding coil of above-mentioned reactor
Multipair magnetic field detectors；In the operational process of above-mentioned reactor, the voltage differential between above-mentioned each pair of magnetic field detectors is obtained
Signal；By comparing said reference voltage differential signal and above-mentioned voltage differential signal, determine above-mentioned reactor with the presence or absence of turn-to-turn
Short trouble.
Since the operating method of the application is simple and does not influence the service life of reactor, raising dry-type iron-core electricity is reached
The detection efficiency of the shorted-turn fault of anti-device, accurately reflects the purpose of the equipment operation condition of reactor, to realize
Effect guarantees the technical effect of the stable operation of dry-type iron-core reactor, and then solves in the prior art for dry-type iron-core reactance
The detection efficiency of the shorted-turn fault of device is lower, and the technology that the stable operation of dry-type iron-core reactor can not be effectively ensured is asked
Topic.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of the method for the shorted-turn fault of determining reactor according to an embodiment of the present invention；
Fig. 2 is the signal that a kind of optional three-phase iron-core reactor according to an embodiment of the present invention determines shorted-turn fault
Figure；
Fig. 3 is a kind of process of the method for the shorted-turn fault of optional determining reactor according to an embodiment of the present invention
Figure；
Fig. 4 is a kind of process of the method for the shorted-turn fault of optional determining reactor according to an embodiment of the present invention
Figure；And
Fig. 5 is a kind of structural representation of the device of the shorted-turn fault of determining reactor according to an embodiment of the present invention
Figure.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of embodiment of the method for the shorted-turn fault of determining reactor is provided, is needed
It is noted that step shown in the flowchart of the accompanying drawings can be in the computer system of such as a group of computer-executable instructions
Middle execution, although also, logical order is shown in flow charts, and it in some cases, can be to be different from herein
Sequence executes shown or described step.
Fig. 1 is a kind of flow chart of the method for the shorted-turn fault of determining reactor according to an embodiment of the present invention, such as
Shown in Fig. 1, this method comprises the following steps:
Step S102 predefines each pair of magnetic of above-mentioned reactor in the case where reactor is in normal operating condition
Reference voltage difference signal between the detector of field, wherein multipair detection of magnetic field is provided with outside the winding coil of above-mentioned reactor
Device；
Step S104 obtains the voltage difference between above-mentioned each pair of magnetic field detectors in the operational process of above-mentioned reactor
Sub-signal；
Step S106 determines above-mentioned reactor by comparing said reference voltage differential signal and above-mentioned voltage differential signal
With the presence or absence of shorted-turn fault.
In the art, in order to safeguard the safe operation of electric system, capacity effect is avoided, it is generally defeated in super-pressure
Shunt reactor is accessed in electric line, meanwhile, reactor also plays the stabilization of electric system, reactive power equilibrium, phase modulation pressure regulation
Great role occupies an important position in the power system.
Optionally, above-mentioned reactor can be, but not limited to as dry-type iron-core reactor, and dry-type iron-core reactor is as electric power
A kind of important reactive power compensator, provides inductive reactive power for power grid in system, plays inactive power compensation, maintains electric system
Voltage level inhibits power-frequency overvoltage.
It is turn-to-turn short circuit caused by different situations since more failure occurs for current dry-type iron-core reactor, and then develops
The electric power accident of forming apparatus scaling loss.Therefore, effectively detection shorted-turn fault is to guarantee dry-type iron-core reactor stable operation
Key, the embodiment of the present application can guarantee dry-type iron-core reactor stable operation by effectively detection shorted-turn fault.
The embodiment of the present application can be, but not limited to the inter-turn short circuit failure on-line detecting method for dry-type iron-core reactor,
It can solve the problem that dry-type iron-core reactor is difficult to on-line checking, on outside the winding coil of dry-type iron-core reactor
Lower symmetric position installs magnetic field detectors, after handling analysis according to the magnetic field signal of detection, judges that the operating status of reactor is come
Realize shorted-turn fault on-line checking.
In an alternative embodiment, it is installed at the position symmetrical above and below outside the three-phase windings of dry-type iron-core reactor
The pairs of magnetic field detectors of multiple groups (that is, multipair magnetic field detectors), each pair of detection when by detection dry-type iron-core reactor operation
The virtual value of voltage difference on device, on-line real-time measuremen reactor interturn short circuit fault, and when shorted-turn fault occurs
Alarm.
In an alternative embodiment, the structure of the coil of above-mentioned multipair magnetic field detectors is identical with the number of turns, on
It states the first magnetic field detectors and the structure of the coil of above-mentioned second magnetic field detectors is identical with the number of turns.
It should be noted that in the case where the current dry-type iron-core reactor of determination is in normal operating condition, in advance
Determine the reference voltage difference signal between each pair of magnetic field detectors of dry-type iron-core reactor, it can be with this reference voltage difference signal
As judgment basis, by the way that in the operational process of dry-type iron-core reactor, the above-mentioned dry-type iron-core reactor of real-time detection is obtained
Voltage differential signal between above-mentioned each pair of magnetic field detectors, and by comparing said reference voltage differential signal and above-mentioned voltage difference
Sub-signal determines above-mentioned reactor with the presence or absence of shorted-turn fault.
The three-phase of dry-type iron-core reactor in the embodiment of the present application has complete symmetry, therefore with a wherein phase structure
For illustrate the detection process of its shorted-turn fault, as shown in Fig. 2, Fig. 2 shows one group of drawings in three-phase iron-core reactor
The search coil of position symmetrical above and below on bar, wherein the magnetic field around the coil of the first magnetic field detectors of upper position is strong
Degree is B1, the magnetic field strength around the coil of the second magnetic field detectors of lower position is B2, due to upper position and lower position
Search coil it is identical, i.e., their the number of turns (N), size (S) are all identical.It can according to Faraday's electromagnetic induction law
Know:
Wherein, u (t) is induced voltage, and φ (t) is magnetic flux, and N is the number of turns of search coil, and S is that magnetic field passes through detection line
The sectional area of circle, B is the space flux density of reactor, since upper search coil is identical with lower search coil, so N1=N2。
When reactor operates normally, Distribution of Magnetic Field is symmetrical up and down for reactor, and flux density relationship in space symmetrical above and below is B1(t)=B2(t), it cuts
Area S1=S2.That is u1(t)=u2(t), then up and down search coil induced voltage virtual value Ui1=Ui2.Search coil above and below i.e.
The virtual value of the difference of induced voltage is Ui0=| Ui1-Ui2|=0, it should be noted that due to manufacture craft, reactor
Upper and lower space magnetic field may non complete symmetry, then Ui0Can not be 0, can with one close to 0 value.
When reactor interturn short circuit fault operation, the magnetic flux density of reactor position symmetrical above and below will have larger difference
Not, u is eventually led to0(t)=u1(t)-u2It (t) is the biggish sinusoidal waveform of amplitude, i.e. UiIt is no longer one close to 0
Value, thus can determine reactor interturn short circuit fault.
It should be noted that the search coil for being installed on reactor surface is the induction dress for obtaining detection signal from primary side
It sets, since its installation site, number of turns, conductor material and installation logarithm will all have a direct impact detection effect.?
When carrying out search coil design, on the one hand to guarantee equipment safety as far as possible, i.e., the differential voltage that search coil is induced can not
More than the input range of measuring device；On the other hand under the premise of guaranteeing measuring device safety, induction big as far as possible is obtained
Voltage, to improve the detection sensitivity of system.
Also, it is still carried out as shown in Fig. 2, the task of acquisition signal processing is to convert the collected data of institute by A/D
Filtering and noise reduction, and data analysis is carried out using obtained array, judge whether that shorted-turn fault occurs, finally by microcomputer
Calculation machine and hardware circuit carry out signal analysis and processing to collected signal, and then judge whether the three-phase iron-core reactor is sent out
Raw shorted-turn fault simultaneously carries out fault alarm in time.
In an alternative embodiment, under XY coordinate system, dry-type iron-core reactor characteristics of magnetic field distribution is the magnetic line of force
Whole symmetrical along central axis, the magnetic line of force forms closed magnetic circuit by iron core, generally will not generate electromagnetic interference to surrounding.
Under normal operating conditions, the Distribution of Magnetic Field of dry-type iron-core reactor is symmetrical about X-axis for dry-type iron-core reactor, when generation turn-to-turn
When short trouble, dry reactor winding construction will be no longer symmetrical, and the magnetic field that the reverse current generated in short-circuited conducting sleeve generates makes to do
The Distribution of Magnetic Field of formula reactor is not symmetrical further referring to X-axis, i.e. the distribution in magnetic field is distorted, when circle occurs for a certain phase of reactor
Between short circuit when, short position has connected into a short-circuited conducting sleeve, generate biggish induced current, and form biggish electric power, break
The insulation of bad reactor, or even burn.
Influence of the turn-to-turn short circuit for still needing to be noted that different the number of turns to surrounding magnetic field is different, away from A phase winding outer diameter
On the path of 100mm, with the increase of short-circuit the number of turns, the magnetic induction intensity of path turn-to-turn short circuit position is gradually increased, and path is closed
It is also more asymmetric in X-axis center, and the increase of the asymmetric degree in magnetic field results in two detections of position symmetrical above and below
Voltage difference U between coiliIncrease, i.e. Ui0And UiDifference it is also bigger, therefore, can be judged by above-mentioned difference at it
The shorted-turn fault of middle generation is more serious.
In embodiments of the present invention, by predefining above-mentioned electricity in the case where reactor is in normal operating condition
Reference voltage difference signal between each pair of magnetic field detectors of anti-device, wherein be provided with outside the winding coil of above-mentioned reactor
Multipair magnetic field detectors；In the operational process of above-mentioned reactor, the voltage differential between above-mentioned each pair of magnetic field detectors is obtained
Signal；By comparing said reference voltage differential signal and above-mentioned voltage differential signal, determine above-mentioned reactor with the presence or absence of turn-to-turn
Short trouble.
Since the operating method of the application is simple and does not influence the service life of reactor, raising dry-type iron-core electricity is reached
The detection efficiency of the shorted-turn fault of anti-device, accurately reflects the purpose of the equipment operation condition of reactor, to realize
Effect guarantees the technical effect of the stable operation of dry-type iron-core reactor, and then solves in the prior art for dry-type iron-core reactance
The detection efficiency of the shorted-turn fault of device is lower, and the technology that the stable operation of dry-type iron-core reactor can not be effectively ensured is asked
Topic.
In an alternative embodiment, Fig. 3 is a kind of circle of optional determining reactor according to an embodiment of the present invention
Between short trouble method flow chart, as shown in figure 3, predefining the base between each pair of magnetic field detectors of above-mentioned reactor
Quasi- voltage differential signal includes:
Step S202 obtains the voltage signal of above-mentioned each pair of magnetic field detectors in advance.
In above-mentioned steps S202, above-mentioned voltage signal includes: the upper position being set to outside above-mentioned winding coil
The first voltage signal of first magnetic field detectors is set to the second magnetic field detectors of the lower position outside above-mentioned winding coil
Second voltage signal, above-mentioned upper position and above-mentioned lower position are symmetrical arranged.
Step S204 is determined above-mentioned every according to the difference between above-mentioned first voltage signal and above-mentioned second voltage signal
To the reference voltage difference signal between magnetic field detectors.
In the embodiment of the present application, as a kind of optional embodiment, under dry-type iron-core reactor normal operating condition,
The voltage signal of each pair of magnetic field detectors is acquired, the first voltage signal of the first magnetic field detectors of reactor upper position is
Ui1, the second voltage signal of the second magnetic field detectors of reactor lower position is Ui2, and calculate first voltage signal and above-mentioned
The virtual value of difference between second voltage signal, taking the multiple mean value of above-mentioned difference voltage is benchmark voltage differential signal Ui0；So
Afterwards on-line real-time measuremen and calculate each pair of magnetic field detectors on-Line Voltage difference virtual value average value, i.e., voltage differential believe
Number Ui.In turn, by comparing said reference voltage differential signal Ui0With voltage differential signal Ui, it can be determined that dry-type iron-core reactor
Real-time running state, determine above-mentioned dry-type iron-core reactor with the presence or absence of shorted-turn fault.Wherein, above-mentioned i is setting
The serial number of magnetic field detectors.
In an alternative embodiment, Fig. 4 is a kind of circle of optional determining reactor according to an embodiment of the present invention
Between short trouble method flow chart, as shown in figure 4, believing by comparing said reference voltage differential signal and above-mentioned voltage differential
Number, determine that above-mentioned reactor includes: with the presence or absence of shorted-turn fault
Step S302 obtains comparison result by comparing said reference voltage differential signal and above-mentioned voltage differential signal；
Step S304, in the case where above-mentioned comparison result is the first comparison result, determining above-mentioned reactor, there is no circles
Between short trouble, wherein above-mentioned first comparison result is used to indicate said reference voltage differential signal and above-mentioned voltage differential signal
It is same or similar；
Step S306 determines that there are turn-to-turns for above-mentioned reactor in the case where above-mentioned comparison result is the second comparison result
Short trouble, wherein above-mentioned second comparison result is used to indicate said reference voltage differential signal and above-mentioned voltage differential signal not
Together.
In above-mentioned optional embodiment, above-mentioned comparison result may include the first comparison result and the second comparison result,
Above-mentioned first comparison result is used to indicate said reference voltage differential signal and above-mentioned voltage differential signal is same or similar, and above-mentioned
It is different with above-mentioned voltage differential signal that two comparison results are used to indicate said reference voltage differential signal.Therefore, it is relatively tied above-mentioned
In the case that fruit is the first comparison result, determine that above-mentioned reactor is the in above-mentioned comparison result there is no shorted-turn fault
In the case where two comparison results, determine that there are shorted-turn faults for above-mentioned reactor.
As a kind of optional embodiment, difference between said reference voltage differential signal and above-mentioned voltage differential signal
Absolute value is bigger, then shows that above-mentioned shorted-turn fault is more serious, said reference voltage differential signal and above-mentioned voltage differential signal
Between difference absolute value it is smaller, then show that above-mentioned shorted-turn fault is not serious.
In an alternative embodiment, determine above-mentioned reactor there are in the case where shorted-turn fault, above-mentioned side
Method further include: control alarm device outputting alarm information, there are turn-to-turn short circuit events for characterizing above-mentioned reactor for above-mentioned warning information
Barrier.
In above-mentioned optional embodiment, by controlling alarm device outputting alarm information, it can indicate that there are circles for reactor
Between short trouble, and then indicate that target object repairs detection to reactor, or the reactor more renewed, to guarantee power train
The safety of system operates normally.
Embodiment 2
According to embodiments of the present invention, it additionally provides a kind of for implementing the side of the shorted-turn fault of above-mentioned determining reactor
The Installation practice of method, Fig. 5 are a kind of knots of the device of the shorted-turn fault of determining reactor according to an embodiment of the present invention
Structure schematic diagram, as shown in figure 5, the device of the shorted-turn fault of above-mentioned determining reactor, comprising: predefine module 50, the
One obtains module 52 and determining module 54, in which:
Module 50 is predefined, for predefining above-mentioned reactance in the case where reactor is in normal operating condition
Reference voltage difference signal between each pair of magnetic field detectors of device, wherein be provided with outside the winding coil of above-mentioned reactor more
To magnetic field detectors；First obtains module 52, for obtaining above-mentioned each pair of detection of magnetic field in the operational process of above-mentioned reactor
Voltage differential signal between device；Determining module 54, for by comparing said reference voltage differential signal and above-mentioned voltage differential
Signal determines above-mentioned reactor with the presence or absence of shorted-turn fault.
In an alternative embodiment, above-mentioned predetermined module includes: preparatory acquiring unit, for obtaining in advance
State the voltage signal of each pair of magnetic field detectors, wherein above-mentioned voltage signal includes: the top being set to outside above-mentioned winding coil
The first voltage signal of first magnetic field detectors of position is set to the second magnetic field of the lower position outside above-mentioned winding coil
The second voltage signal of detector, above-mentioned upper position and above-mentioned lower position are symmetrical arranged；Determination unit, for according to above-mentioned
Difference between first voltage signal and above-mentioned second voltage signal determines the reference voltage between above-mentioned each pair of magnetic field detectors
Difference signal.
It should be noted that above-mentioned modules can be realized by software or hardware, for example, for the latter,
Can be accomplished by the following way: above-mentioned modules can be located in same processor；Alternatively, above-mentioned modules are with any
Combined mode is located in different processors.
Herein it should be noted that above-mentioned predetermined module 50, first obtains module 52 and determining module 54 corresponds to
Step S102 to step S106 in embodiment 1, above-mentioned module is identical as example and application scenarios that corresponding step is realized,
But it is not limited to the above embodiments 1 disclosure of that.It should be noted that above-mentioned module can be run as a part of of device
In terminal.
It should be noted that the optional or preferred embodiment of the present embodiment may refer to the associated description in embodiment 1,
Details are not described herein again.
The device of the shorted-turn fault of above-mentioned determination reactor can also be above-mentioned preparatory including processor and memory
Determining module 50, first obtains module 52 and determining module 54 etc. and stores as program unit in memory, by processor
Above procedure unit stored in memory is executed to realize corresponding function.
Include kernel in processor, is gone in memory to transfer corresponding program unit by kernel, above-mentioned kernel can be set
One or more.Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM)
And/or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM), memory includes at least one
Storage chip.
According to the embodiment of the present application, a kind of storage medium embodiment is additionally provided.Optionally, in the present embodiment, above-mentioned
Storage medium includes the program of storage, wherein equipment where controlling above-mentioned storage medium in above procedure operation executes above-mentioned
Any one determines the method for the shorted-turn fault of reactor.
Optionally, in the present embodiment, above-mentioned storage medium can be located in computer network in computer terminal group
In any one terminal, or in any one mobile terminal in mobile terminal group, above-mentioned storage medium packet
Include the program of storage.
Optionally, when program is run, equipment where control storage medium executes following functions: being in normal in reactor
In the case where operating status, the reference voltage difference signal between each pair of magnetic field detectors of above-mentioned reactor is predefined, wherein
Multipair magnetic field detectors are provided with outside the winding coil of above-mentioned reactor；In the operational process of above-mentioned reactor, in acquisition
State the voltage differential signal between each pair of magnetic field detectors；Believe by comparing said reference voltage differential signal and above-mentioned voltage differential
Number, determine above-mentioned reactor with the presence or absence of shorted-turn fault.
Optionally, when program is run, equipment where control storage medium executes following functions: obtaining in advance above-mentioned each pair of
The voltage signal of magnetic field detectors, wherein above-mentioned voltage signal includes: the upper position being set to outside above-mentioned winding coil
The first voltage signal of first magnetic field detectors is set to the second magnetic field detectors of the lower position outside above-mentioned winding coil
Second voltage signal, above-mentioned upper position and above-mentioned lower position are symmetrical arranged；According to above-mentioned first voltage signal and above-mentioned
Difference between second voltage signal determines the reference voltage difference signal between above-mentioned each pair of magnetic field detectors.
Optionally, when program is run, equipment where control storage medium executes following functions: by comparing said reference
Voltage differential signal and above-mentioned voltage differential signal, obtain comparison result；The case where above-mentioned comparison result is the first comparison result
Under, determining above-mentioned reactor, there is no shorted-turn faults, wherein above-mentioned first comparison result is used to indicate said reference voltage
Difference signal and above-mentioned voltage differential signal are same or similar；In the case where above-mentioned comparison result is the second comparison result, determine
There are shorted-turn faults for above-mentioned reactor, wherein above-mentioned second comparison result be used to indicate said reference voltage differential signal and
Above-mentioned voltage differential signal is different.
Optionally, when program is run, equipment where control storage medium executes following functions: control alarm device output is accused
Alert information, there are shorted-turn faults for characterizing above-mentioned reactor for above-mentioned warning information.
According to the embodiment of the present application, a kind of processor embodiment is additionally provided.Optionally, in the present embodiment, above-mentioned place
Reason device is for running program, wherein above procedure executes the shorted-turn fault that any one of the above determines reactor when running
Method.
The embodiment of the present application provides a kind of equipment, equipment include processor, memory and storage on a memory and can
The program run on a processor, processor perform the steps of when executing program and are in normal operating condition in reactor
In the case of, predefine the reference voltage difference signal between each pair of magnetic field detectors of above-mentioned reactor, wherein above-mentioned reactor
Winding coil outside be provided with multipair magnetic field detectors；In the operational process of above-mentioned reactor, above-mentioned each pair of magnetic field is obtained
Voltage differential signal between detector；By comparing said reference voltage differential signal and above-mentioned voltage differential signal, in determination
Reactor is stated with the presence or absence of shorted-turn fault.
Optionally, when above-mentioned processor executes program, the voltage letter of above-mentioned each pair of magnetic field detectors can also be obtained in advance
Number, wherein above-mentioned voltage signal include: be set to the upper position outside above-mentioned winding coil the first magnetic field detectors
One voltage signal is set to the second voltage signal of the second magnetic field detectors of the lower position outside above-mentioned winding coil, on
It states upper position and above-mentioned lower position is symmetrical arranged；According between above-mentioned first voltage signal and above-mentioned second voltage signal
Difference determines the reference voltage difference signal between above-mentioned each pair of magnetic field detectors.
It optionally, can also be by comparing said reference voltage differential signal and above-mentioned electricity when above-mentioned processor executes program
Pressure difference sub-signal, obtains comparison result；In the case where above-mentioned comparison result is the first comparison result, above-mentioned reactor is determined not
There are shorted-turn faults, wherein above-mentioned first comparison result is used to indicate said reference voltage differential signal and above-mentioned voltage difference
Sub-signal is same or similar；In the case where above-mentioned comparison result is the second comparison result, determine that there are turn-to-turns for above-mentioned reactor
Short trouble, wherein above-mentioned second comparison result is used to indicate said reference voltage differential signal and above-mentioned voltage differential signal not
Together.
Optionally, when above-mentioned processor executes program, alarm device outputting alarm information, above-mentioned warning information can also be controlled
For characterizing above-mentioned reactor, there are shorted-turn faults.
Present invention also provides a kind of computer program products, when executing on data processing equipment, are adapted for carrying out just
The program of beginningization there are as below methods step: in the case where reactor is in normal operating condition, above-mentioned reactor is predefined
Each pair of magnetic field detectors between reference voltage difference signal, wherein be provided with outside the winding coil of above-mentioned reactor multipair
Magnetic field detectors；In the operational process of above-mentioned reactor, the voltage differential signal between above-mentioned each pair of magnetic field detectors is obtained；
By comparing said reference voltage differential signal and above-mentioned voltage differential signal, determine above-mentioned reactor with the presence or absence of turn-to-turn short circuit event
Barrier.
Optionally, when above-mentioned computer program product executes program, above-mentioned each pair of magnetic field detectors can also be obtained in advance
Voltage signal, wherein above-mentioned voltage signal include: be set to the upper position outside above-mentioned winding coil the first magnetic field visit
The first voltage signal for surveying device, is set to the second voltage of the second magnetic field detectors of the lower position outside above-mentioned winding coil
Signal, above-mentioned upper position and above-mentioned lower position are symmetrical arranged；Believe according to above-mentioned first voltage signal and above-mentioned second voltage
Difference between number determines the reference voltage difference signal between above-mentioned each pair of magnetic field detectors.
It optionally, can also be by comparing said reference voltage differential signal when above-mentioned computer program product executes program
With above-mentioned voltage differential signal, comparison result is obtained；In the case where above-mentioned comparison result is the first comparison result, determine above-mentioned
Shorted-turn fault is not present in reactor, wherein above-mentioned first comparison result is used to indicate said reference voltage differential signal and upper
It is same or similar to state voltage differential signal；In the case where above-mentioned comparison result is the second comparison result, above-mentioned reactor is determined
There are shorted-turn faults, wherein above-mentioned second comparison result is used to indicate said reference voltage differential signal and above-mentioned voltage difference
Sub-signal is different.
Optionally, when above-mentioned computer program product executes program, alarm device outputting alarm information can also be controlled, it is above-mentioned
There are shorted-turn faults for characterizing above-mentioned reactor for warning information.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of method of the shorted-turn fault of determining reactor characterized by comprising
In the case where reactor is in normal operating condition, predefine between each pair of magnetic field detectors of the reactor
Reference voltage difference signal, wherein multipair magnetic field detectors are provided with outside the winding coil of the reactor；
In the operational process of the reactor, the voltage differential signal between each pair of magnetic field detectors is obtained；
By comparing the reference voltage difference signal and the voltage differential signal, determine that the reactor is short with the presence or absence of turn-to-turn
Road failure.
2. the method according to claim 1, wherein predefine the reactor each pair of magnetic field detectors it
Between reference voltage difference signal include:
The voltage signal of each pair of magnetic field detectors is obtained in advance, wherein the voltage signal includes: to be set to the winding
The first voltage signal of first magnetic field detectors of the upper position of coil outer, is set to the lower part outside the winding coil
The second voltage signal of second magnetic field detectors of position, the upper position and the lower position are symmetrical arranged；
According to the difference between the first voltage signal and the second voltage signal, determine each pair of magnetic field detectors it
Between reference voltage difference signal.
3. the method according to claim 1, wherein by comparing the reference voltage difference signal and the voltage
Differential signal determines that the reactor includes: with the presence or absence of shorted-turn fault
By comparing the reference voltage difference signal and the voltage differential signal, comparison result is obtained；
In the case where the comparison result is the first comparison result, determine that shorted-turn fault is not present in the reactor,
In, first comparison result is used to indicate the reference voltage difference signal and the voltage differential signal is same or similar；
In the case where the comparison result is the second comparison result, determine that there are shorted-turn faults for the reactor, wherein
It is different with the voltage differential signal that second comparison result is used to indicate the reference voltage difference signal.
4. according to the method described in claim 3, it is characterized in that, there are the feelings of shorted-turn fault determining the reactor
Under condition, the method also includes: control alarm device outputting alarm information, the warning information exist for characterizing the reactor
Shorted-turn fault.
5. according to the method described in claim 2, it is characterized in that, the structure and the number of turns of the coil of the multipair magnetic field detectors
Identical, first magnetic field detectors and the structure of the coil of second magnetic field detectors are identical with the number of turns.
6. method as claimed in any of claims 1 to 5, which is characterized in that the reference voltage difference signal and institute
The absolute value for stating the difference between voltage differential signal is bigger, then shows that the shorted-turn fault is more serious, the benchmark electricity
The absolute value of difference between pressure difference signal and the voltage differential signal is smaller, then shows that the shorted-turn fault is not tight
Weight.
7. a kind of device of the shorted-turn fault of determining reactor characterized by comprising
Module is predefined, for predefining the every of the reactor in the case where reactor is in normal operating condition
To the reference voltage difference signal between magnetic field detectors, wherein be provided with multipair magnetic field outside the winding coil of the reactor
Detector；
First obtains module, for obtaining the electricity between each pair of magnetic field detectors in the operational process of the reactor
Pressure difference sub-signal；
Determining module, for determining the reactor by comparing the reference voltage difference signal and the voltage differential signal
With the presence or absence of shorted-turn fault.
8. device according to claim 7, which is characterized in that the predetermined module includes:
Preparatory acquiring unit, for obtaining the voltage signal of each pair of magnetic field detectors in advance, wherein the voltage signal packet
It includes: being set to the first voltage signal of the first magnetic field detectors of the upper position outside the winding coil, be set to described
The second voltage signal of second magnetic field detectors of the lower position outside winding coil, the upper position and the lower portion
It sets arranged symmetrically；
Determination unit, for determining described every according to the difference between the first voltage signal and the second voltage signal
To the reference voltage difference signal between magnetic field detectors.
9. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program
When control the storage medium where equipment perform claim require any one of 1 to 6 described in determination reactor turn-to-turn it is short
The method of road failure.
10. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 6 described in determination reactor shorted-turn fault method.
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| CN110531215A (en) * | 2019-08-29 | 2019-12-03 | 哈尔滨理工大学 | Iron-core reactor turn insulation Fault Locating Method and on-line monitoring system |
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| CN116520196A (en) * | 2023-07-03 | 2023-08-01 | 国网安徽省电力有限公司电力科学研究院 | On-line monitoring method for turn-to-turn short circuit fault of dry type air-core reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110596521A (en) * | 2019-07-09 | 2019-12-20 | 国网江苏省电力有限公司徐州供电分公司 | Turn-to-turn fault detection system based on symmetry of dry reactor and detection method thereof |
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| CN112345983A (en) * | 2020-11-10 | 2021-02-09 | 国网江苏省电力有限公司盐城供电分公司 | Reactor winding fault detection system based on optical fiber transmission and detection method thereof |
| CN113447782A (en) * | 2021-08-30 | 2021-09-28 | 南方电网科学研究院有限责任公司 | Coil equipment turn insulation state monitoring device, system and monitoring method |
| CN116520196A (en) * | 2023-07-03 | 2023-08-01 | 国网安徽省电力有限公司电力科学研究院 | On-line monitoring method for turn-to-turn short circuit fault of dry type air-core reactor |
| CN116520196B (en) * | 2023-07-03 | 2023-09-22 | 国网安徽省电力有限公司电力科学研究院 | On-line monitoring method for turn-to-turn short circuit fault of dry type air-core reactor |
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Application publication date: 20190315 |