CN109839575A - A kind of electric power system fault processing method, device and terminal device - Google Patents
A kind of electric power system fault processing method, device and terminal device Download PDFInfo
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- CN109839575A CN109839575A CN201910271208.XA CN201910271208A CN109839575A CN 109839575 A CN109839575 A CN 109839575A CN 201910271208 A CN201910271208 A CN 201910271208A CN 109839575 A CN109839575 A CN 109839575A
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Abstract
The present invention is suitable for Relay Protection Technology in Power System field, discloses a kind of electric power system fault processing method, device and terminal device.This method comprises: the trip protection information of monitoring electric system, determines circuit breaker position and circuit-breaker status according to trip protection information；The current information of the two sides current transformer of the corresponding breaker of circuit breaker position is acquired, and is judged within the scope of overlapping protection according to the current information of two sides current transformer and trip protection information with the presence or absence of failure；Failure if it exists; it then detects the state of line related protective device and/or sends control command to the first breaker; and when the state of line related protective device meets corresponding preset condition and/or the first breaker meets corresponding preset condition based on the response message of control instruction, according to the current information and logic of propositions relationship fault point of the first breaker two sides current transformer.The above method can effectively detect the case where breaking down within the scope of overlapping protection.
Description
Technical field
The invention belongs to electric system relays to protect technical field more particularly to a kind of electric power system fault processing method, dress
It sets and terminal device.
Background technique
In recent years, electric grid relay protection equipment obtains great development, but according to the countries concerned's regulation, rules and regulations, when
The mentality of designing of preceding electric grid relay protection equipment is that occur protection's dead-zone in order to prevent, allows to protect between different protection equipment
Range can be with juxtaposition.Just because of the juxtaposition characteristic of protection scope, when making to break down within the scope of overlapping protection,
There to be multiple line protective devices simultaneously or sequentially to act excision failure, and cause the redundancy running for protecting route protection unit, expansion stops
Electric range is unfavorable for the stabilization of power grids, reliable operation, and this point is one particularly with super-pressure, extra-high voltage grid to Guan Chong
Larger drawback.As super extra-high voltage, extra-high voltage grid are gradually expanded, there is far-reaching meaning to this problem expansion research
Justice.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of electric power system fault processing method, device and terminal device, with
Solve the problems, such as that there are cause unnecessary scope of power outage to expand when failure within the scope of overlapping protection in the prior art.
The first aspect of the embodiment of the present invention provides a kind of electric power system fault processing method, comprising:
Step A monitors the trip protection information of electric system, according to the trip protection information determine circuit breaker position with
Circuit-breaker status；
Step B acquires the two sides electric current of the corresponding breaker of the circuit breaker position after monitoring trip protection information
The current information of mutual inductor, and according to the current information of the two sides current transformer and trip protection information judgement overlapping
It whether there is failure in protection scope；
Step C, if detecting the state of line related protective device and/or to there are failure within the scope of overlapping protection
One breaker sends control command, and meets corresponding preset condition and/or first disconnected in the state of line related protective device
When road device meets corresponding preset condition based on the response message of the control instruction, according to first breaker two sides electric current
The current information and logic of propositions relationship fault point of mutual inductor.
The second aspect of the embodiment of the present invention provides a kind of electric power system fault processing unit, comprising:
System monitoring module is determined for monitoring the trip protection information of electric system according to the trip protection information
Circuit breaker position and circuit-breaker status；
Judgment module is acquired, for after monitoring trip protection information, acquiring the corresponding open circuit of the circuit breaker position
The current information of the two sides current transformer of device, and according to the current information and the trip protection of the two sides current transformer
Information judges within the scope of overlapping protection with the presence or absence of failure；
Locating module is controlled, if detecting the shape of line related protective device for there are failures within the scope of overlapping protection
State and/or control command is sent to the first breaker, and meets corresponding preset condition in the state of line related protective device
And/or first breaker when meeting corresponding preset condition based on the response message of the control instruction, it is disconnected according to described first
The current information and logic of propositions relationship fault point of road device two sides current transformer.
The third aspect of the embodiment of the present invention provides a kind of terminal device, including memory, processor and is stored in
In the memory, and the computer program that can be run on the processor, processor execute real when the computer program
Now as described in relation to the first aspect electric power system fault processing method the step of.
The fourth aspect of the embodiment of the present invention provides a kind of computer readable storage medium, comprising: the computer can
It reads storage medium and is stored with computer program, electric power as described in relation to the first aspect is realized when the computer program is executed by processor
The step of system failure processing method.
Existing beneficial effect is the embodiment of the present invention compared with prior art: the embodiment of the present invention passes through monitoring power train
The trip protection information of system determines corresponding circuit breaker position information and status information, and acquires and be located at identified breaker position
The current information of the two sides current transformer for the breaker set, according to the current information of the two sides current transformer and the guarantor
Shield tripping information judges effectively detect there is event within the scope of overlapping protection with the presence or absence of failure within the scope of overlapping protection
The case where barrier, and detecting within the scope of overlapping protection there are when failure, for certain situations, can with fault point, thus
The breaker of line related protective device or normal operation can be handled according to the fault point of positioning, reduce protective device
Redundancy running and breaker unnecessary tripping, the expansion of unnecessary scope of power outage is reduced, so as to further increase
The acting characteristic of protective device itself, the operation stability of system and reliability.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the implementation process schematic diagram of electric power system fault processing method provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of localization of fault process flow provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of Substation Bus Arrangement provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of electric power system fault processing unit provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of terminal device provided in an embodiment of the present invention.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
Description and claims of this specification and term " includes " and other any deformations in above-mentioned attached drawing are
Refer to " including but not limited to ", it is intended that cover and non-exclusive include.Such as the process, method comprising a series of steps or units
Or system, product or equipment are not limited to listed step or unit, but optionally further comprising the step of not listing
Or unit, or optionally further comprising other step or units intrinsic for these process, methods, product or equipment.In addition, art
Language " first ", " second " and " third " etc. is for distinguishing different objects, not for description particular order.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Embodiment 1:
The implementation process schematic diagram of Fig. 1 electric power system fault processing method provided in an embodiment of the present invention should referring to Fig. 1
Electric power system fault processing method may include:
Step S101 monitors the trip protection information of electric system, determines breaker position according to the trip protection information
It sets and circuit-breaker status.
Wherein, the trip protection information may include the action message of multiple line protective devices；Step S101 can be with
It include: that the breaker to trip is determined according to the action message of multiple line protective devices in the trip protection information
Position and state；The circuit-breaker status may include breaker three-phase quartile and single-phase quartile.
Optionally, Fig. 3 is the schematic diagram of Substation Bus Arrangement provided in an embodiment of the present invention, bus 1 (500kV#1M)
Line protective devices use 5051-B, and the line protective devices of outlet 1 use the attached electricity of 5051,5,052 two breakers
Current transformer 5051-A and 5052-B.Similarly, for outlet 2, line protective devices use 5052,5,053 two breakers
Attached current transformer 5052-A and 5053-B.Similarly, for bus 2 (500kV#2M), line protective devices use electric current
Mutual inductor 5053-A.
Optionally, for Fig. 3, trip protection information can be bus 1 (500kV#1M), outlet 1, outlet 2 and bus 2
The action message of the protective device of (500kV#2M).
Step S102 acquires the two sides of the corresponding breaker of the circuit breaker position after monitoring trip protection information
The current information of current transformer, and judged according to the current information of the two sides current transformer and the trip protection information
It whether there is failure within the scope of overlapping protection.
Wherein, each breaker two sides respectively connect a current transformer, according to the two sides described in step S102
The current information of current transformer and the trip protection information judge to can wrap within the scope of overlapping protection with the presence or absence of failure
It includes: if multiple line protective devices simultaneously or sequentially act, and within the scope of collected multiple protective device overlapping protections
The two sides current transformer of breaker there are fault currents, then there are failures within the scope of overlapping protection.
By taking Fig. 3 as an example, the line protective devices of bus 1 (500kV#1M) use current transformer 5051-B, the line of outlet 1
Line protection device uses the attached current transformer 5051-A and 5052-B of 5051,5,052 two breakers；Similarly, for outlet
2, line protective devices use the attached current transformer 5052-A and 5053-B of 5052,5,053 two breakers；Similarly, right
In bus 2 (500kV#2M), line protective devices use current transformer 5053-A.Therefore, for breaker 5051,
5052, the range being overlapped between 5053 and its respective two sides current transformer is the cross protection between two protection equipment
Range.The route protection of outlet 1 will form juxtaposition model with the bus protection of 500kV#1 bus, the route protection of outlet 2
It encloses.When breaking down particularly for K1, K2 point in diagram, the protection of bus 1 is acted with 1 route protection of outlet.For K3, K4
Point failure, outlet 1 and the route protection of outlet 2 act.In fact, bus is without movement, route protection for K2 point failure
Movement can cut off failure.Therefore bus is expanded the scope of power outage of accident by bus protection movement after system excision.Similarly, right
In K4 point failure, the route protection movement of outlet 2 can cut off failure, and the route protection of outlet 1 is without movement.Its movement will
The power failure of outlet 1 is caused, i.e., expands scope of power outage again.
Optionally, by taking Fig. 3 as an example, the action message of multiple line protective devices may include breaker 5051,5052 and
5053 location information and status information, if collecting multiple line protective devices action messages is breaker 5051,5052 and
5053, status information is three-phase quartile state, meets multiple line protective devices at this time and simultaneously or sequentially acts, institute
Range of the overlapping protection range of multiple line protective devices between current transformer 5052-A and 5052-B is stated, within the scope of this
Corresponding breaker be breaker 5052, if at this time collected 5052 two sides current transformer 5052-A of breaker and
Having one in 5052-B, there are fault currents, then can determine within the scope of overlapping protection, i.e. current transformer 5052-A and 5052-
There are failures between B.
Step S103, if there are failure within the scope of overlapping protection, detect line related protective device state and/or to
First breaker sends control command, and meets corresponding preset condition and/or first in the state of line related protective device
When breaker meets corresponding preset condition based on the response message of the control instruction, according to first breaker two sides electricity
The current information and logic of propositions relationship fault point of current transformer.
Wherein, first breaker is the open circuit in step S102 within the scope of the overlapping protection of multiple line protective devices
Device；Fault point process is as shown in Figure 2:
Step S301, judges whether the first breaker is in three-phase quartile state, if the first breaker is not at three-phase separate
Position state, then enter step S307；If the first breaker is in three-phase quartile state, S302 is entered step.
Step S302 sends control command to the first breaker, and the control command is used to indicate first breaker
State switch to stoppage in transit state.
Step S303, the current information of the two sides current transformer of first breaker of the acquisition in stoppage in transit state.
Step S304, with judging overlapping protection model again according to the current information of first breaker two sides current transformer
With the presence or absence of failure in enclosing, if failure is not present within the scope of overlapping protection, any movement is not done to line protective devices, interrupts
Treatment process；If there are failures within the scope of overlapping protection, S305 is entered step.
Step S305 further judges protection act information and the first circuit breaker position information and current transformer electricity
Whether stream information logic is correct, if is consistent with predetermined current transformer current infologic, if not meeting predetermined current information
Logic, interrupt processing process；If meeting predetermined current infologic, S306 is entered step.
Step S306, according to logic of propositions fault point.
Step S307, if judging, the first breaker is not at three-phase quartile state, sends control command to the first breaker,
The state of first breaker is switched into non-full-operating state.
Step S308, multiple line protective devices that detection forms this overlapping protection range are acted with the presence or absence of reclosing,
If it does not exist, then any movement, interrupt processing process are not done to line protective devices；If it exists, then S309 is entered step.
Step S309, the protection of detection line related is after reclosing movement, and whether there are still failures for overlapping protection range, and
Whether trip after line related protective device reclosing, if there are failure and line related protection dresses within the scope of overlapping protection
It trips after setting reclosing, then enters step S310；Otherwise any movement, interrupt processing are not done to line protective devices
Journey.
Step S310, according to logic of propositions fault point.
Wherein, within the scope of overlapping protection there are when failure, the electric current of the two sides current transformer of the breaker is respectively
Zero-sequence current and fault current, two sides current transformer are respectively the first side current transformer and second side current transformer；Institute
It states and includes: according to logic of propositions fault point
If the electric current of the first side current transformer is fault current, fault point is located at the breaker and the first side electric current is mutual
Between sensor；
If the electric current of second side current transformer is fault current, fault point is located at the breaker and second side electric current is mutual
Between sensor.
Optionally, by taking Fig. 3 as an example, when breaker 5052 is in quartile, K3 point belongs to Chong Die protect with the failure of K4 point
It protects in range, but K3 and K4 point failure, for the current transformer of 5052-A and 5052-B, the flow direction of short circuit current is complete
Different, therefore for current transformer 5052-A as shown in Figure 3 and current transformer 5052-B, there is also supplemental characteristics, i.e.,
For the K3 point failure in such as figure, the electric current steady-state quantity of the failure phase of current transformer 5052-B is 0, i.e., breaker is in
When quartile, there are the electricity of the failure phase of one of current transformer of the breaker of quartile when failure within the scope of overlapping protection
Flow valuve is 0.
Optionally, by taking Fig. 3 as an example, by the electric current feelings of the corresponding current transformer of the different faults point of different quartile breakers
Condition obtains the logic of propositions of fault point, as shown in table 1:
1 logic of propositions of table
Optionally, above-mentioned electric power system fault processing method can also include:
Step S104 protects line related according to the overlapping range inner breaker quartile state and the fault point oriented
Protection unit or the breaker that can be operated normally are handled.
Referring to fig. 2, in one embodiment, step S104 can be realized by following steps:
Step S401 is positioned if corresponding breaker is in three-phase quartile state in overlapping range according to logic of propositions
Fault point, being latched for the processing of the fault point is line protective devices for redundancy running；
Step S402 is positioned if corresponding breaker is in single-phase quartile state in overlapping range according to logic of propositions
Fault point, three_phase reclosing is executed to the breaker that can operate normally；
Step S403 interrupts return step S101 after having executed step as shown in Figure 2.
Optionally, by taking Fig. 3 as an example, if if corresponding breaker is breaker 5051 and is in three-phase in the overlapping range
Quartile state, if being at this time K2 according to the fault point of logic of propositions positioning, the line protective devices movement of outlet 1 can cut off event
Barrier, the line protective devices of bus 1 are redundancies at this time, are latched the line protective devices of bus 1, prevent the route of bus 1 from protecting
Protection unit movement, reduces the expansion of scope of power outage；Similarly, if being K4, the line of outlet 2 according to the fault point of logic of propositions positioning
Line protection device movement can cut off failure, and the line protective devices of outlet 1 are redundancies, the route protection dress of locking outlet 1
It sets, prevents the line protective devices of outlet 1 from acting, reduce the expansion of scope of power outage；The breaker three-phase separate can similarly be obtained
When position, according to the processing method of other fault points of logic of propositions positioning.If corresponding breaker is breaker in overlapping range
5052 and be in single-phase quartile state, if at this time according to logic of propositions positioning fault point be K4, the jump of breaker 5051 at this time
Lock be it is unnecessary, can operate normally, then three_phase reclosing operation be executed to breaker 5051, so that outlet 1 can be with
It runs well, reduces scope of power outage；When can similarly obtain the single-phase quartile of the breaker, according to the other of logic of propositions positioning therefore
Hinder the processing method of point.
It can be seen that above-mentioned electric power system fault processing method can effectively detect that there are occur event in overlapping range
The case where barrier, and detecting within the scope of overlapping protection there are when failure, it, can be with fault point, root for certain situations
Line related protective device or the breaker that can be operated normally are handled according to the fault point of positioning, reduce the superfluous of protective device
The unnecessary tripping of remaining operation and breaker, reduces the expansion of unnecessary scope of power outage, so as to further increase protection
The acting characteristic of device itself, the operation stability of system and reliability.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
Embodiment 2:
Fig. 4 is the schematic diagram for the electric power system fault processing unit that one embodiment of the invention provides, right for executing Fig. 1 institute
The method and step in embodiment answered.As shown in figure 4, in the present embodiment, electric power system fault processing unit 4 may include being
System monitoring modular 41, acquisition judgment module 42 and control locating module 43.
System monitoring module 41, it is true according to the trip protection information for monitoring the trip protection information of electric system
Determine circuit breaker position and circuit-breaker status.
Judgment module 42 is acquired, it is corresponding disconnected for after monitoring trip protection information, acquiring the circuit breaker position
The current information of the two sides current transformer of road device, and jumped according to the current information of the two sides current transformer and the protection
Lock information judges within the scope of overlapping protection with the presence or absence of failure.
Locating module 43 is controlled, if detecting line related protective device for there are failures within the scope of overlapping protection
State and/or control command is sent to the first breaker, and meets corresponding default item in the state of line related protective device
When part and/or the first breaker meet corresponding preset condition based on the response message of the control instruction, according to described first
The current information and logic of propositions relationship fault point of breaker two sides current transformer.
Optionally, which can also include fault processing module 44；Fault processing module 44
For that associate power or can be operated normally according to the fault point of the overlapping range inner breaker quartile state and positioning
Breaker is handled.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of the lifting device is divided into different functional unit or module, to complete
All or part of function described above.Each functional unit in embodiment, module can integrate in one processing unit,
It is also possible to each unit to physically exist alone, can also be integrated in one unit with two or more units, above-mentioned collection
At unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function
Unit, module specific name be also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above-mentioned dress
The specific work process for setting middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
Embodiment 3:
The schematic diagram for the terminal device that Fig. 5 one embodiment of the invention provides.As shown in figure 5, in the present embodiment, terminal is set
Standby 5 include: processor 50, memory 51 and are stored in the meter that can be run in the memory 51 and on the processor 50
Calculation machine program 52.The processor 50 is realized in each embodiment as described in example 1 above when executing the computer program 52
The step of, such as step S101 to S103 shown in FIG. 1.Alternatively, reality when the processor 50 executes the computer program 52
The function of each module/unit in existing above-mentioned electric power system fault processing device embodiment, such as the function of module 41 to 43 shown in Fig. 4
Energy.
Illustratively, the computer program 52 can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory 51, and are executed by the processor 50, to complete the application.Described one
A or multiple module/units can be the series of computation machine program instruction section that can complete specific function, which is used for
Implementation procedure of the computer program 52 in the terminal device 5 is described.For example, the computer program 52 can be divided
It is as follows to be cut into system monitoring module, acquisition judgment module and control locating module, the concrete function of modules:
System monitoring module is determined for monitoring the trip protection information of electric system according to the trip protection information
Circuit breaker position and circuit-breaker status；
Judgment module is acquired, for after monitoring trip protection information, acquiring the corresponding open circuit of the circuit breaker position
The current information of the two sides current transformer of device, and according to the current information and the trip protection of the two sides current transformer
Information judges within the scope of overlapping protection with the presence or absence of failure；
Locating module is controlled, if detecting the shape of line related protective device for there are failures within the scope of overlapping protection
State and/or control command is sent to the first breaker, and meets corresponding preset condition in the state of line related protective device
And/or first breaker when meeting corresponding preset condition based on the response message of the control instruction, it is disconnected according to described first
The current information and logic of propositions relationship fault point of road device two sides current transformer.
The terminal device can be mobile phone, tablet computer etc. and calculate equipment.The terminal device may include, but not only limit
In processor 50, memory 51.It will be understood by those skilled in the art that Fig. 5 is only the example of terminal device 5, do not constitute
Restriction to terminal device 5 may include perhaps combining certain components or different than illustrating more or fewer components
Component, such as the terminal device 5 can also include input-output equipment, network access equipment, bus etc..
Alleged processor 50 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 51 can be the internal storage unit of the terminal device 5, such as the hard disk or interior of terminal device 5
It deposits.The memory 51 is also possible to the External memory equipment of the terminal device 5, such as be equipped on the terminal device 5
Plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card dodge
Deposit card (Flash Card) etc..Further, the memory 51 can also both include the storage inside list of the terminal device 5
Member also includes External memory equipment.The memory 51 is for storing 5 institute of the computer program 52 and the terminal device
Other programs and data needed.The memory 51 can be also used for temporarily storing the number that has exported or will export
According to.
Embodiment 4:
The embodiment of the invention also provides a kind of computer readable storage medium, computer-readable recording medium storage has meter
Calculation machine program is realized the step in each embodiment as described in example 1 above, such as is schemed when computer program is executed by processor
Step S101 shown in 1 to step S103.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
In embodiment provided herein, it should be understood that disclosed electric power system fault processing method, device
And terminal device, it may be implemented in other ways.For example, electric power system fault processing device embodiment described above
It is only schematical, for example, the division of the module or unit, only a kind of logical function partition, in actual implementation may be used
To there is an other division mode, such as multiple units or components can be combined or can be integrated into another system or some
Feature can be ignored, or not execute.Another point, shown or discussed mutual coupling or direct-coupling or communication connection
It can be through some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical property, mechanical or other shapes
Formula.
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
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in 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 module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can store in a computer readable storage medium.Based on this understanding, the application realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program generation
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium
It may include: any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic that can carry the computer program code
Dish, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described
The content that computer-readable medium includes can carry out increasing appropriate according to the requirement made laws in jurisdiction with patent practice
Subtract, such as in certain jurisdictions, according to legislation and patent practice, computer-readable medium do not include be electric carrier signal and
Telecommunication signal.
Embodiment described above is only to illustrate the technical solution of the application, rather than its limitations；Although referring to aforementioned reality
Example is applied the application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution should all
Comprising within the scope of protection of this application.
Claims (11)
1. a kind of electric power system fault processing method characterized by comprising
Step A monitors the trip protection information of electric system, determines circuit breaker position and open circuit according to the trip protection information
Device state；
Step B acquires the two sides Current Mutual Inductance of the corresponding breaker of the circuit breaker position after monitoring trip protection information
The current information of device, and overlapping protection is judged according to the current information of the two sides current transformer and the trip protection information
It whether there is failure in range；
Step C, if detecting the state of line related protective device there are failure within the scope of overlapping protection and/or breaking to first
Road device sends control command, and meets corresponding preset condition and/or the first breaker in the state of line related protective device
When response message based on the control instruction meets corresponding preset condition, according to first breaker two sides Current Mutual Inductance
The current information and logic of propositions relationship fault point of device.
2. electric power system fault processing method as described in claim 1, which is characterized in that the trip protection information includes more
The action message of a line protective devices；It is described that circuit breaker position and circuit-breaker status are determined according to the trip protection information,
Include:
According to the action message of multiple line protective devices in the trip protection information, the breaker to trip is determined
Position and state.
3. electric power system fault processing method as described in claim 1, which is characterized in that each breaker two sides respectively connect one
A current transformer；It is described to be protected according to the current information of the two sides current transformer and trip protection information judgement overlapping
It protects and whether there is failure in range, comprising:
If multiple line protective devices simultaneously or sequentially act, and within the scope of collected multiple protective device overlapping protections
The two sides current transformer of breaker there are fault currents, then there are failures within the scope of overlapping protection.
4. electric power system fault processing method as claimed in claim 3, which is characterized in that there is event within the scope of overlapping protection
When barrier, the electric current of the two sides current transformer of the breaker is respectively zero-sequence current and fault current, two sides current transformer
Respectively the first side current transformer and second side current transformer；It is described according to first breaker two sides current transformer
Current information logic of propositions relationship fault point, comprising:
If the electric current of the first side current transformer is fault current, fault point is located at the breaker and the first side current transformer
Between；
If the electric current of second side current transformer is fault current, fault point is located at the breaker and second side current transformer
Between.
5. electric power system fault processing method as described in claim 1, which is characterized in that in the quartile state of the first breaker
When for three-phase quartile state, the step C includes:
Control command is sent to the first breaker, the state that the control command is used to indicate first breaker, which switches to, stops
Fortune state；
The current information of the two sides current transformer of first breaker of the acquisition in stoppage in transit state；
Judged within the scope of overlapping protection again according to the current information of the first breaker two sides current transformer with the presence or absence of failure；
If there are failure within the scope of overlapping protection, according to the current information of the first breaker two sides current transformer and described pre-
If logical relation fault point.
6. electric power system fault processing method as described in claim 1, which is characterized in that in the quartile state of the first breaker
When for single-phase quartile state, the step C includes:
Control command is sent to the first breaker, the state that the control command is used to indicate first breaker switches to non-
Full phase operating status；
Line related protective device is detected to act with the presence or absence of reclosing；
In line related protective device, there are reclosing movements, and there are still events within the scope of overlapping protection after reclosing movement
Barrier, and trip after line related protective device reclosing, then according to the electricity of first breaker two sides current transformer
Stream information and logic of propositions relationship fault point.
7. electric power system fault processing method as described in claim 1, further includes:
Step D protects line related according to the overlapping protection range inner breaker quartile state and the fault point oriented
Device or the breaker that can be operated normally are handled.
8. electric power system fault processing method as claimed in claim 7, the step D include:
If corresponding breaker is in three-phase quartile state within the scope of overlapping protection, according to logic of propositions position fault point,
It is latched the line protective devices that the processing for the fault point is redundancy running；
If corresponding breaker is in single-phase quartile state within the scope of overlapping protection, according to logic of propositions position fault point,
Three_phase reclosing is executed to the breaker that can be operated normally.
9. a kind of electric power system fault processing unit characterized by comprising
System monitoring module determines open circuit according to the trip protection information for monitoring the trip protection information of electric system
Device position and circuit-breaker status；
Judgment module is acquired, for after monitoring trip protection information, acquiring the corresponding breaker of the circuit breaker position
The current information of two sides current transformer, and according to the current information of the two sides current transformer and the trip protection information
Judge within the scope of overlapping protection with the presence or absence of failure；
Control locating module, if state for there are failure, detecting line related protective device within the scope of overlapping protection and/
Or to the first breaker send control command, and the state of line related protective device meet corresponding preset condition and/or
When first breaker meets corresponding preset condition based on the response message of the control instruction, according to first breaker two
The current information and logic of propositions relationship fault point of side current transformer.
10. a kind of terminal device, including memory, processor and storage are in the memory and can be on the processor
The computer program of operation, which is characterized in that the processor realizes such as claim 1 to 8 when executing the computer program
The step of any one the method.
11. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of any one of such as claim 1 to 8 of realization the method.
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| CN109839575B (en) | 2021-07-06 |
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