CN107465174A - A kind of fault protecting method and device of the distribution system containing energy storage - Google Patents
A kind of fault protecting method and device of the distribution system containing energy storage Download PDFInfo
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- CN107465174A CN107465174A CN201710942530.1A CN201710942530A CN107465174A CN 107465174 A CN107465174 A CN 107465174A CN 201710942530 A CN201710942530 A CN 201710942530A CN 107465174 A CN107465174 A CN 107465174A
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- protection
- fault
- distribution system
- transformer station
- module
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
Abstract
The invention discloses a kind of fault protecting method and device of the distribution system containing energy storage; by obtaining power direction; and the judgement and exclusion of abort situation are carried out using power direction; whether detection distribution system first breaks down; then failure is searched from transformer, bus, feeder line layering successively; finally determine fault section, relay protection action isolated fault.Solve in the prior art, through carrying out relay protection to the distribution system containing multiple micro-capacitance sensors with energy-storage travelling wave tube frequently with improved current protection, result in fiting tuning difficulty, and the technical problem of the high distribution system of distributed energy permeability can not be adapted to.
Description
Technical field
The present invention relates to relay protection field, more particularly to a kind of fault protecting method and dress of the distribution system containing energy storage
Put.
Background technology
Energy storage, distributed power source access power distribution network, can improve power distribution network flexibility and reliability, in order to avoid it is to major network
Impact, the receiving energy-storage travelling wave tube and distributed power units more using micro-capacitance sensor in the form of, when with energy-storage travelling wave tube and distribution
After the micro-capacitance sensor access power distribution network of power subsystem, not only can concept transfer and circuit short circuit current size, can also change failure
Duration and its direction of tide, single low capacity have the access of the micro-capacitance sensor of energy-storage travelling wave tube and distributed power unit may
Influence to distribution system protection is little, but for the distribution system containing multiple micro-capacitance sensors with energy-storage travelling wave tube, event is occurring
Energy-storage travelling wave tube can the stream of falling power transmission during barrier so that fault current increases.
If using traditional three-step charging, protection sensitivity can be caused relatively low, it is possible to malfunction, adjacent occurs
Circuit quick-break malfunction and the unsuccessful situation of this circuit re-switching, protection cooperation lose reliability, selectivity and sensitivity, hinder
Fault detect and the correct action of breaker.
In the prior art, through frequently with improved current protection to the power distribution system containing multiple micro-capacitance sensors with energy-storage travelling wave tube
System carries out relay protection, result in fiting tuning difficulty, and can not adapt to the skill of the high distribution system of distributed energy permeability
Art problem.
The content of the invention
The invention provides a kind of fault protecting method and device of the distribution system containing energy storage, for solving prior art
In, through carrying out relay protection to the distribution system containing multiple micro-capacitance sensors with energy-storage travelling wave tube frequently with improved current protection,
Fiting tuning difficulty is result in, and the technical problem of the high distribution system of distributed energy permeability can not be adapted to.
A kind of fault protecting method of distribution system containing energy storage provided by the invention, including：
S1：Judge whether the distribution system of transformer station breaks down, if so, step S2 is then performed, if it is not, then repeating
Step S1；
S2：The location of fault is judged whether in the range of the transformer station, if so, step S3 is then performed, if it is not,
Then perform step S1；
S3：Judge whether the fault type is transformer fault, if so, then performing tranformer protection and protection reset behaviour
Make, and return and perform step S1, if it is not, then performing step S4；
S4：Judge whether the fault type is bus-bar fault, if so, bus protection and protection reset operation are then performed,
And return and perform step S1, if it is not, then performing step S5；
S5：The second inductive direction of the feeder line and micro-capacitance sensor junction is got, judges the described second perceptual work(
Whether rate direction is just, to reset operation if so, then disconnecting the tie point of the feeder line and the micro-capacitance sensor and performing protection, return
Step S1 is performed, if it is not, then performing step S6；
S6：The 3rd inductive direction of at least two circuit breakers on the feeder line is got, determines two the 3rd
Feeder line between inductive breaker in opposite direction is fault feeder, and performs fault feeder protection and protection reset behaviour
Make, return and perform step S1.
Preferably, the step S1 includes：
Judge whether the busbar voltage of the transformer station is less than predeterminated voltage, or the transformer of the transformer station goes out line current
Whether first predetermined current is higher than, or whether the transformer high-low-voltage side electric current of the transformer station is higher than the second predetermined current, if
It is step S2 then to be performed, if it is not, then repeating step S1.
Preferably, the step S2 includes：
Judge whether the transformer station and the directional element of non-transformer station's power network junction act, the directional element is just
The transformer station is pointed in direction for non-transformer station's power network, if so, step S3 is then performed, if it is not, then performing step S1.
Preferably, the step S3 includes：
Judge whether the directional element of the step down side of the transformer station acts, the positive direction of the directional element is
The transformer points to the bus of the distribution system, if it is not, then performing tranformer protection and protection reset operation, and returns and holds
Row step S1, if so, then performing step S4.
Preferably, the step S4 includes：
The first inductive direction of each feeder line of the distribution system is got, judges the first perception of each feeder line
Whether power direction is negative, if so, then performing bus protection and protection reset operation, and returns and performs step S1, if it is not, then
Perform step S5.
Preferably, the first inductive direction of the feeder line for getting the distribution system includes：
Get the line voltage distribution and line current of the feeder line of the distribution system, the line voltage distribution and the line electricity
The product of stream is first inductive, and determines that the direction of first inductive is the first inductive direction.
Preferably, the feeder line and the second inductive direction of micro-capacitance sensor junction of getting includes：
Get the node voltage of the feeder line and micro-capacitance sensor junction and the Injection Current of micro-capacitance sensor, the node voltage
Product with the Injection Current is second inductive, and determines that the direction of second inductive is perceptual for second
Power direction.
A kind of failure protecting device of distribution system containing energy storage provided by the invention includes：
First judge module, for judging whether the distribution system of transformer station breaks down, if so, then triggering second judges
Module, if it is not, the then judge module of retriggered first；
Second judge module, for judging the location of fault whether in the range of the transformer station, if so, then touching
The 3rd judge module is sent out, if it is not, the then judge module of retriggered first；
3rd judge module, for judging whether the fault type is transformer fault, if so, the then protection of triggering first
Module, if it is not, then triggering the 4th judge module；
First protection module, reset operation, and the judge module of retriggered first for performing tranformer protection and protection；
4th judge module, for judging whether the fault type is bus-bar fault, if so, the then protection of triggering second mould
Block, if it is not, then triggering the 5th acquisition module；
Second protection module, reset operation, and the judge module of retriggered first for performing bus protection and protection；
5th acquisition module, for getting the second inductive direction of the feeder line and micro-capacitance sensor junction, and touch
Send out the 5th judge module；
5th judge module, for judging whether the second inductive direction is just, if so, the then protection of triggering the 3rd
Module, if it is not, then triggering the 6th acquisition module；
3rd protection module, operation is resetted for disconnecting the tie point of the feeder line and the micro-capacitance sensor and performing protection,
And the judge module of retriggered first；
6th acquisition module, for getting the 3rd inductive side of at least two circuit breakers on the feeder line
To, determine that the feeder line between two the 3rd inductives breaker in opposite direction is fault feeder, and the protection mould of triggering the 4th
Block；
4th protection module, operation is resetted for performing fault feeder protection and protection, and retriggered first judges mould
Block.
Preferably, first judge module, specifically for judging the busbar voltage of the transformer station whether less than default
Voltage, or the transformer of the transformer station go out whether line current is higher than the first predetermined current, or the transformer height of the transformer station
Whether low-pressure side electric current is higher than the second predetermined current, if so, the second judge module is then triggered, if it is not, then retriggered first is sentenced
Disconnected module.
Preferably, second judge module, specifically for judging the transformer station and non-transformer station's power network junction
Whether directional element acts, and the positive direction of the directional element points to the transformer station for non-transformer station's power network, if so, then
The 3rd judge module is triggered, if it is not, the then judge module of retriggered first.
As can be seen from the above technical solutions, the present invention has advantages below：
A kind of fault protecting method of distribution system containing energy storage provided by the invention, including：
S1：Judge whether the distribution system of transformer station breaks down, if so, step S2 is then performed, if it is not, then repeating
Step S1；S2：The location of fault is judged whether in the range of the transformer station, if so, step S3 is then performed, if it is not,
Then perform step S1；S3：Judge whether the fault type is transformer fault, if so, then performing tranformer protection and protection
Operation is resetted, and returns and performs step S1, if it is not, then performing step S4；S4：Judge whether the fault type is bus event
Barrier, if so, then performing bus protection and protection reset operation, and return and perform step S1, if it is not, then performing step S5；S5：Obtain
Get the second inductive direction of the feeder line and micro-capacitance sensor junction, judge the second inductive direction whether be
Just, if so, then disconnecting the tie point of the feeder line and the micro-capacitance sensor and performing protection reset operation, return and perform step S1,
If it is not, then perform step S6；S6：The 3rd inductive direction of at least two circuit breakers on the feeder line is got, really
Feeder line between fixed two the 3rd inductives breaker in opposite direction is fault feeder, and performs fault feeder protection and protect
Shield resets operation, returns and performs step S1.
In the present invention, by obtaining power direction, and the judgement and exclusion of abort situation are carried out using power direction, first
Whether detection distribution system breaks down, and then searches failure from transformer, bus, feeder line layering successively, finally determines failure
Section, relay protection action isolated fault.Solve in the prior art, through frequently with improved current protection to having containing multiple
The distribution system of the micro-capacitance sensor of energy-storage travelling wave tube carries out relay protection, result in fiting tuning difficulty, and can not adapt to distributed energy
The technical problem of the high distribution system of source permeability.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of flow of one embodiment of the fault protecting method of the distribution system containing energy storage provided by the invention
Schematic diagram；
Fig. 2 is a kind of stream of another embodiment of the fault protecting method of the distribution system containing energy storage provided by the invention
Journey schematic diagram；
Fig. 3 is a kind of structure of one embodiment of the failure protecting device of the distribution system containing energy storage provided by the invention
Schematic diagram；
Fig. 4 is a kind of knot of another embodiment of the failure protecting device of the distribution system containing energy storage provided by the invention
Structure schematic diagram.
Embodiment
It is existing for solving the embodiments of the invention provide a kind of fault protecting method and device of the distribution system containing energy storage
Have in technology, through carrying out relay to the distribution system containing multiple micro-capacitance sensors with energy-storage travelling wave tube frequently with improved current protection
Protection, fiting tuning difficulty is result in, and the technical problem of the high distribution system of distributed energy permeability can not be adapted to.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below
Embodiment be only part of the embodiment of the present invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Term " first ", " second ", " the 3rd " in description and claims of this specification and above-mentioned accompanying drawing etc. are
For distinguishing similar object, without for describing specific order or precedence.It should be appreciated that the data so used
It can exchange in appropriate circumstances.
Referring to Fig. 1, a kind of one embodiment of the fault protecting method of distribution system containing energy storage provided by the invention,
Including：
S101：Judge whether the distribution system of transformer station breaks down, if so, step S102 is then performed, if it is not, then repeating
Perform step S101；
S102：Whether the position of failure judgement is in the range of transformer station, if so, step S3 is then performed, if it is not, then performing
Step S101；
S103：Whether failure judgement type is transformer fault, if so, then performing tranformer protection and protection reset behaviour
Make, and return and perform step S101, if it is not, then performing step S104；
S104：Whether failure judgement type is bus-bar fault, if so, bus protection and protection reset operation are then performed, and
Return and perform step S101, if it is not, then performing step S105；
S105：The second inductive direction of feeder line and micro-capacitance sensor junction is got, judges the second inductive direction
Whether it is just, to reset operation if so, then disconnecting the tie point of feeder line and micro-capacitance sensor and performing protection, return and perform step S101,
If it is not, then perform step S106；
S106：The 3rd inductive direction of at least two circuit breakers on feeder line is got, determines two the 3rd senses
Property the opposite breaker of power direction between feeder line be fault feeder, and perform fault feeder protection and protection reset operation,
Return and perform step S101.
In the embodiment of the present invention, by obtaining power direction, and the judgement using power direction progress abort situation and row
Remove, detect whether distribution system breaks down first, then search failure from transformer, bus, feeder line layering successively, it is last true
Determine fault section, relay protection action isolated fault.Solve in the prior art, through frequently with improved current protection to containing more
The distribution system of the individual micro-capacitance sensor with energy-storage travelling wave tube carries out relay protection, result in fiting tuning difficulty, and can not adapt to point
The technical problem of the high distribution system of cloth energy permeability.
Above is the description carried out to a kind of one embodiment of fault protecting method of the distribution system containing energy storage, below
A kind of another embodiment of the fault protecting method of the distribution system containing energy storage will be described in detail.
Reference picture 2, a kind of another embodiment of the fault protecting method of the distribution system containing energy storage provided by the invention,
Including：
S201：Judge whether the busbar voltage of transformer station is less than predeterminated voltage, or the transformer of transformer station goes out line current and is
It is no to be higher than the first predetermined current, or whether the transformer high-low-voltage side electric current of transformer station be higher than the second predetermined current, if so, then holding
Row step S202, if it is not, then repeating step S201；
S202：Judge whether transformer station and the directional element of non-transformer station's power network junction act, the pros of directional element
Transformer station is pointed to for non-transformer station's power network, if so, step S203 is then performed, if it is not, then performing step S201；
S203：Judge whether the directional element of the step down side of transformer station acts, the positive direction of directional element is change
Depressor points to the bus of distribution system, if it is not, then performing tranformer protection and protection reset operation, and returns to execution step
S201, if so, then performing step S204；
S204：The first inductive direction of each feeder line of distribution system is got, judges the first perceptual work(of each feeder line
Whether rate direction is negative, if so, then performing bus protection and protection reset operation, and returns and performs step S201, if it is not, then holding
Row step S205；
S205：The second inductive direction of feeder line and micro-capacitance sensor junction is got, judges the second inductive direction
Whether it is just, to reset operation if so, then disconnecting the tie point of feeder line and micro-capacitance sensor and performing protection, return and perform step S201,
If it is not, then perform step S206；
S206：The 3rd inductive direction of at least two circuit breakers on feeder line is got, determines two the 3rd senses
Property the opposite breaker of power direction between feeder line be fault feeder, and perform fault feeder protection and protection reset operation,
Return and perform step S201.
It should be noted that in actual implementation process, if fault direction is just at some section upstream protection, and downstream
Fault direction is negative at protection, then this section is fault section；Otherwise, if fault direction is just at the section downstream protection,
This section is non-faulting section, continues to search for whether next section is fault section, untill finding out fault section, its
In, fault direction judges according to distribution system line voltage distribution and current signal, directional element signal, if line voltage distribution and circuit
The inductive direction that electric current is multiplied to obtain is just, then fault direction is just；If line voltage distribution is multiplied what is obtained with line current
Inductive direction is negative, then is reverse direction failure.If directional element signal is just, fault direction is just；Otherwise, it is negative side
To failure.
Above is the description carried out to a kind of another embodiment of fault protecting method of the distribution system containing energy storage, under
A kind of one embodiment of the failure protecting device of the distribution system containing energy storage will be described in detail for face.
Reference picture 3, a kind of one embodiment of the failure protecting device of the distribution system containing energy storage provided by the invention, bag
Include：
First judge module 301, for judging whether the distribution system of transformer station breaks down, if so, then triggering second
Judge module 302, if it is not, then the first judge module of retriggered 301；
Second judge module 302, whether the position for failure judgement is in the range of transformer station, if so, then triggering
Three judge modules 303, if it is not, then the first judge module of retriggered 301；
3rd judge module 303, whether it is transformer fault for failure judgement type, if so, the then protection of triggering first
Module 304, if it is not, then triggering the 4th judge module 305；
First protection module 304, operation is resetted for performing tranformer protection and protection, and retriggered first judges mould
Block 301；
4th judge module 305, whether it is bus-bar fault for failure judgement type, if so, the then protection of triggering second mould
Block 306, if it is not, then triggering the 5th acquisition module 307；
Second protection module 306, reset operation, and the judge module of retriggered first for performing bus protection and protection
301；
5th acquisition module 307, for getting the second inductive direction of feeder line and micro-capacitance sensor junction, and trigger
5th judge module 308；
5th judge module 308, for judging whether the second inductive direction is just, if so, the then protection of triggering the 3rd
Module 309, if it is not, then triggering the 6th acquisition module 310；
3rd protection module 309, operation is resetted for disconnecting the tie point of feeder line and micro-capacitance sensor and performing protection, and again
Trigger the first judge module 301；
6th acquisition module 310, for getting the 3rd inductive direction of at least two circuit breakers on feeder line,
Determine that the feeder line between two the 3rd inductives breaker in opposite direction is fault feeder, and trigger the 4th protection module
311；
4th protection module 311, operation is resetted for performing fault feeder protection and protection, and retriggered first judges
Module 301.
Above is the description carried out to a kind of one embodiment of failure protecting device of the distribution system containing energy storage, below
A kind of another embodiment of the failure protecting device of the distribution system containing energy storage will be described in detail.
Reference picture 4, a kind of another embodiment of the failure protecting device of distribution system provided by the invention, including：
Whether the first judge module 401, the busbar voltage specifically for judging transformer station are less than predeterminated voltage, or transformer station
Transformer go out line current and whether be higher than the first predetermined current, or whether the transformer high-low-voltage side electric current of transformer station is higher than second
Predetermined current, if so, the second judge module 402 is then triggered, if it is not, then the first judge module of retriggered 401；
Second judge module 402, specifically for judge transformer station and non-transformer station's power network junction directional element whether
Action, the positive direction of directional element points to transformer station for non-transformer station's power network, if so, the 3rd judge module 403 is then triggered, if
It is no, then the first judge module of retriggered 401；
3rd judge module 403, for judging whether the directional element of step down side of transformer station acts, direction member
The positive direction of part is the bus that transformer points to distribution system, if it is not, then trigger the first protection module 404, if so, then triggering the
Seven acquisition modules 405；
First protection module 404, operation is resetted for performing tranformer protection and protection, and retriggered first judges mould
Block 401；
7th acquisition module 405, the first inductive direction of each feeder line for getting distribution system, and trigger the
Four judge modules 406；
Getting the first inductive direction of the feeder line of distribution system includes：
Get the line voltage distribution and line current of the feeder line of distribution system, the product of line voltage distribution and line current is the
One inductive, and the direction of the first inductive of determination is the first inductive direction；
4th judge module 406, for judging whether the first inductive direction of each feeder line is negative, if so, then triggering
Second protection module 407, if it is not, then triggering the 5th acquisition module 408；
Second protection module 407, reset operation, and the judge module of retriggered first for performing bus protection and protection
401；
5th acquisition module 408, for getting the second inductive direction of feeder line and micro-capacitance sensor junction, and trigger
5th judge module 409；
Getting feeder line and the second inductive direction of micro-capacitance sensor junction includes：
Get the node voltage of feeder line and micro-capacitance sensor junction and the Injection Current of micro-capacitance sensor, node voltage and injection electricity
The product of stream is the second inductive, and the direction of the second inductive of determination is the second inductive direction
5th judge module 409, for judging whether the second inductive direction is just, if so, the then protection of triggering the 3rd
Module 410, if it is not, then triggering the 6th acquisition module 411；
3rd protection module 410, operation is resetted for disconnecting the tie point of feeder line and micro-capacitance sensor and performing protection, and again
Trigger the first judge module 401；
6th acquisition module 411, for getting the 3rd inductive direction of at least two circuit breakers on feeder line,
Determine that the feeder line between two the 3rd inductives breaker in opposite direction is fault feeder, and trigger the 4th protection module
412；
4th protection module 412, operation is resetted for performing fault feeder protection and protection, and retriggered first judges
Module 401.
It is apparent to those skilled in the art that for convenience and simplicity of description, the method for foregoing description
With the specific work process of module, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it can be passed through
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, only
Only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple module or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Mutual coupling or direct-coupling or communication connection can be the INDIRECT COUPLINGs or logical by some interfaces, device or module
Letter connection, can be electrical, mechanical or other forms.
In addition, each functional module in each embodiment of the present invention can be integrated in a processing module, can also
That modules are individually physically present, can also two or more modules be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of fault protecting method of the distribution system containing energy storage, its feature are, including：
S1：Judge whether the distribution system of transformer station breaks down, if so, step S2 is then performed, if it is not, then repeating step
S1；
S2：The location of fault is judged whether in the range of the transformer station, if so, step S3 is then performed, if it is not, then holding
Row step S1；
S3：Judge whether the fault type is transformer fault, if so, tranformer protection and protection reset operation are then performed,
And return and perform step S1, if it is not, then performing step S4；
S4：Judge whether the fault type is bus-bar fault, if so, then performing bus protection and protection reset operation, and return
Receipt row step S1, if it is not, then performing step S5；
S5：The second inductive direction of the feeder line and micro-capacitance sensor junction is got, judges the second inductive side
To whether be just, if so, then disconnect the tie point of the feeder line and the micro-capacitance sensor and perform protection reset operation, return perform
Step S1, if it is not, then performing step S6；
S6：The 3rd inductive direction of at least two circuit breakers on the feeder line is got, determines two the 3rd perception
Feeder line between the opposite breaker of power direction is fault feeder, and performs fault feeder protection and protection reset operation, is returned
Receipt row step S1.
2. the fault protecting method of the distribution system according to claim 1 containing energy storage, it is characterised in that the step S1
Including：
Judge whether the busbar voltage of the transformer station is less than predeterminated voltage, or whether the transformer of the transformer station goes out line current
Whether the transformer high-low-voltage side electric current higher than the first predetermined current, or the transformer station is higher than the second predetermined current, if so, then
Step S2 is performed, if it is not, then repeating step S1.
3. the fault protecting method of the distribution system according to claim 2 containing energy storage, it is characterised in that the step S2
Including：
Judge whether the transformer station and the directional element of non-transformer station's power network junction act, the positive direction of the directional element
The transformer station is pointed to for non-transformer station's power network, if so, step S3 is then performed, if it is not, then performing step S1.
4. the fault protecting method of the distribution system according to claim 3 containing energy storage, it is characterised in that the step S3
Including：
Judge whether the directional element of the step down side of the transformer station acts, the positive direction of the directional element is described
Transformer points to the bus of the distribution system, if it is not, then performing tranformer protection and protection reset operation, and returns and performs step
Rapid S1, if so, then performing step S4.
5. the fault protecting method of the distribution system according to claim 4 containing energy storage, it is characterised in that the step S4
Including：
The first inductive direction of each feeder line of the distribution system is got, judges the first inductive of each feeder line
Whether direction is negative, if so, then performing bus protection and protection reset operation, and returns and performs step S1, if it is not, then performing
Step S5.
6. the fault protecting method of the distribution system according to claim 5 containing energy storage, it is characterised in that described to get
First inductive direction of the feeder line of the distribution system includes：
Get the line voltage distribution and line current of the feeder line of the distribution system, the line voltage distribution and the line current
Product is first inductive, and determines that the direction of first inductive is the first inductive direction.
7. the fault protecting method of the distribution system according to claim 6 containing energy storage, it is characterised in that described to get
The feeder line and the second inductive direction of micro-capacitance sensor junction include：
Get the node voltage of the feeder line and micro-capacitance sensor junction and the Injection Current of micro-capacitance sensor, the node voltage and institute
The product for stating Injection Current is second inductive, and determines that the direction of second inductive is the second inductive
Direction.
A kind of 8. failure protecting device of the distribution system containing energy storage, it is characterised in that including：
First judge module, for judging whether the distribution system of transformer station breaks down, if so, then triggering second judges mould
Block, if it is not, the then judge module of retriggered first；
Second judge module, for judging the location of fault whether in the range of the transformer station, if so, then triggering
Three judge modules, if it is not, the then judge module of retriggered first；
3rd judge module, for judging whether the fault type is transformer fault, if so, the then protection of triggering first mould
Block, if it is not, then triggering the 4th judge module；
First protection module, reset operation, and the judge module of retriggered first for performing tranformer protection and protection；
4th judge module, for judging whether the fault type is bus-bar fault, if so, the second protection module is then triggered,
If it is not, then trigger the 5th acquisition module；
Second protection module, reset operation, and the judge module of retriggered first for performing bus protection and protection；
5th acquisition module, for getting the second inductive direction of the feeder line and micro-capacitance sensor junction, and trigger the
Five judge modules；
5th judge module, for judging whether the second inductive direction is just, if so, the then protection of triggering the 3rd mould
Block, if it is not, then triggering the 6th acquisition module；
3rd protection module, operation is resetted for disconnecting the tie point of the feeder line and the micro-capacitance sensor and performing protection, is laid equal stress on
The first judge module of new triggering；
6th acquisition module, for getting the 3rd inductive direction of at least two circuit breakers on the feeder line, really
Feeder line between fixed two the 3rd inductives breaker in opposite direction is fault feeder, and triggers the 4th protection module；
4th protection module, reset operation, and the judge module of retriggered first for performing fault feeder protection and protection.
9. the failure protecting device of the distribution system according to claim 8 containing energy storage, it is characterised in that
First judge module, specifically for judging whether the busbar voltage of the transformer station is less than predeterminated voltage, or it is described
The transformer of transformer station goes out whether line current is higher than the first predetermined current, or the transformer high-low-voltage side electric current of the transformer station is
It is no to be higher than the second predetermined current, if so, the second judge module is then triggered, if it is not, the then judge module of retriggered first.
10. the failure protecting device of the distribution system according to claim 9 containing energy storage, it is characterised in that
Second judge module, specifically for judge the transformer station and non-transformer station's power network junction directional element whether
Action, the positive direction of the directional element points to the transformer station for non-transformer station's power network, if so, then triggering the 3rd judges
Module, if it is not, the then judge module of retriggered first.
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