CN109921516A - A kind of topology based on electrical principle and prevent maloperation method - Google Patents
A kind of topology based on electrical principle and prevent maloperation method Download PDFInfo
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Abstract
The invention discloses a kind of topology based on electrical principle and prevent maloperation method, the following steps are included: establish electrical source model, according to the transitivity of equipment live situation, the connected relation of equipment and source in electrical source model, five anti-judgements processing based on electrical principle are carried out using topological tax source analytic approach, the device attribute that is obtained using topological tax source analytic approach and the anti-misoperation based on electrical principle are judged；The present invention is by carrying out anti-misoperation judgement based on electrical objective law itself, not only have the characteristics that simply, operated quickly and conveniently, and wide adaptability, compared with through the method for "AND" "or" " non-" logic, artificial formulation complex rule using equipment state, there is the difference of essence, the method of the present invention adapts to various power network wiring modes, grid operation mode and various complex operations completely, avoids when there is execute-in-place because of the problem of not perfect caused maloperation or unlock of logical formula operate.
Description
Technical field
The present invention relates to power engineering field more particularly to a kind of topology based on electrical principle and prevent maloperation side
Method.
Background technique
In the power system, electric fault-operation accident has seriously threatened the safety of power grid, equipment and the person, seriously
The operational safety for influencing electric system, will cause serious consequence, power department has formulated five kinds of evils according to electric operation property
Property electric misoperation concept to prevent electric fault-operation accident, i.e., we usually say five anti-: 1. prevent from accidentally dividing falsely close circuit breaker,
2. preventing on-load point, conjunction disconnecting switch, 3. from preventing band cable address (conjunction) ground line (grounding switch), 4. from preventing line with ground from (connecing
Ground disconnecting link) close breaker (disconnecting switch) and 5. prevent mistakenly entering charged chamber.
It based on means is locked to primary equipment currently, anti-error, it is mandatory to the implementation for violating five-prevention operation
Locking, but in existing electric system, the logic judgment of conventional anti-error locking system is all based on the information of equipment state
Judged, is to be judged by "AND", "or" " non-" mode of equipment state, even if using the most mature and extensive
Microcomputer locking system, misoperation fault are still constantly occurring, due to the defect of anti-error locking system itself design principle, are leading
It has caused the design principle of part anti-error locking system only to adapt to equipment component operating principle, and has been not suitable for all modes of operation,
It is not according to electrical come what is carried out that the design of anti-misoperation locking devices all at present, which is according to the rule of equipment operation requirement,
What operating principle carried out, the anit-misoperation rules for writing out do not have extensive adaptability, for the behaviour not considered in anit-misoperation rules
Make type, subjective error is very big, and the method for operation of power grid is ever-changing, its operation of different wiring and operation also phase not to the utmost
Together, present anti-error locking system is substantially all is established with single station or several stations, but power grid is all the physical connection between equipment,
Often an operation will cause coverage can be very wide, by with or logic discrimination in the way of can not adapt to the power grid become stronger day by day
Demand for security, therefore, the present invention propose a kind of topology based on electrical principle and prevent maloperation method, to solve the prior art
In shortcoming.
Summary of the invention
In view of the above-mentioned problems, the method for the present invention carries out anti-misoperation judgement by being based on electrical objective law itself, not only
With simple, operated quickly and conveniently a little, and wide adaptability, with by "AND" "or" " non-" logic using equipment state,
The artificial method for formulating complex rule is compared, and has the difference of essence, and the method for the present invention adapts to various power network wiring modes, electricity completely
The net method of operation and various complex operations avoid when there is execute-in-place the not perfect caused accidentally behaviour because of logical formula
The problem of making or unlocking operation.
The present invention proposes a kind of topology based on electrical principle and prevents maloperation method, comprising the following steps:
Step 1: establishing electrical source model, the place for generating electricity be referred to as power supply first, load is referred to as load source, if
The hanging earthing conductor or when grounding knife lock in some power equipment, then set one ground connection source of generation herein, if route or setting
There is no power supply in standby or be not connected with other sources, then sets the promising suspended source of relevant device band herein；
Step 2: according to the foundation of source model electrical in step 1, according to the connected relation of equipment and the transitivity in source, utilization
Topological tax source analytic approach to equipment carry out assignment and judgement with source attribute；
Step 3: the adjacency matrix for first assuming power grid is T(n × n), wherein n number of nodes, then obtain according to topological tax source analytic approach
It arrives:
The source vector of power grid is a dimensional vector A(n), when node i (i ∈ n) is there are when the source S, A(i)=S, as node i (i ∈
N) there are when other sources, corresponding source equally is assigned to node i；
Enable A(1 again)=A, with adjacency matrix T premultiplication source vector A(1), it is concluded that:
A(2)=TA(1)
Wherein, A(2) be A(1) source vector toward adjacent node spread after result；
Adjacency matrix T premultiplication source vector A(2 is used again), it obtains:
A(3)=TA(2)
Wherein, A(3) be A(2) source vector further toward adjacent node diffusion after result；
Step 4: the anti-misoperation judgement based on electrical principle, according to the equipment category that topological tax source analytic approach obtains in step 3
Property, recycle the intermiscibility that can operate equipment sources and electrical principle to carry out the judgement of five-prevention operation, including accidentally close to preventing from accidentally dividing
It switchs, prevents on-load division disconnecting link, prevent band cable address (conjunction) ground line (grounding switch), prevent line with ground (grounding switch)
It closes breaker (disconnecting switch) and prevents the judgement of mistakenly entering charged chamber.
Further improvement lies in that: power supply is replaced with S in the step 1, and the load source is the equipment L for consuming electric energy
Instead of the part that the ground connection source is connected for certain parts of electric system and its electrical equipment with the earth is replaced, institute with E
Suspended source is stated to be replaced with N.
Further improvement lies in that: the junction in the step 1 between equipment and equipment is labeled as tie point, the company
Contact is expressed as the point of the connection relationship of the tie point on electric system primary connection figure.
Further improvement lies in that: if there is the source L in the existing source S in the same tie point in the step 3 again, then it represents that electricity
Net is in normal power supply state.
Further improvement lies in that: if there is the source E in the existing source S in the same tie point in the step 3 again, then it represents that electricity
Net is in short circuit grounding state.
Further improvement lies in that: the judgement in the step 4 to preventing mistake point from missing combination switch specifically:
(1) if switch two sides are the source S or the source SL or SN, then it represents that this switch allows to separate or close；
(2) if after switching separately, side is the source S, and side is the source L, then it represents that this operation will lead to this line outage；
(3) if switch close before, side has the side L to have S, then it represents that allows to operate；
(4) if switch two sides, there is the source S in discovery side, and there is the source E in the other side, then it represents that this switch closes quiescing.
Further improvement lies in that: the judgement in the step 4 to on-load division disconnecting link is prevented specifically:
(1) if there are the source S or the source SL in disconnecting link two sides, then quiescing；
(2) if disconnecting link side is the source S, side is the source N, then allowing to operate.
Further improvement lies in that: in the step 4 to prevent line with ground (grounding switch) close breaker (disconnecting switch)
Judgement specifically:
(1) if equipment operation side is the source E, a side apparatus is the source S, carries out operating breaker or isolation switch, then it represents that the behaviour
Work is that line with ground (grounding switch) closes breaker (disconnecting switch) quiescing；
If the equipment of operation is hanging ground-wire or grounding knife lock, then it represents that the operation is that band cable address (conjunction) is grounded (earthing
Lock) quiescing；
(2) if equipment side is the source L, side is the source E, then it represents that the operation of the equipment operates after needing electrical verification.
Further improvement lies in that: to when preventing the mistakenly entering charged chamber from judging in the step 4, need according to operation
Task carrys out determination range, and including switching, switching entire spacing devices where two sides disconnecting link and grounding switch, switch, bypass is opened
It closes interval and is switched by belt switch interval, all spacing devices being connected with the operation task and route, main transformer and three side of main transformer
The equipment of interval or two sides switch gap, conjunction station all devices and operation.
The invention has the benefit that the method for the present invention is sentenced by carrying out anti-misoperation based on electrical objective law itself
It is disconnected, not only there is simple, operated quickly and conveniently a little, but also wide adaptability, and pass through the "AND" "or" for utilizing equipment state
" non-" logic, the artificial method for formulating complex rule are compared, and have the difference of essence, the method for the present invention adapts to various power grids completely and connects
Line mode, grid operation mode and various complex operations avoid when there is execute-in-place because of the not perfect of logical formula
The problem of caused maloperation or unlock operation, while after the method for the present invention is fully implanted in program, it is anti-woth no need to manual compiling
Mis-logical formula latching logic mistake can not occur based on electrical objective law itself, and stability is high.
Detailed description of the invention
Fig. 1 is present system structural schematic diagram.
Fig. 2 is power plant in the embodiment of the present invention, hand in hand substation and load substation structure schematic diagram.
Fig. 3 is the judgement schematic diagram for preventing from accidentally dividing accidentally combination switch in the embodiment of the present invention.
Fig. 4 is the judgement schematic diagram that on-load division disconnecting link is prevented in the embodiment of the present invention.
Fig. 5 is the judgement the in the embodiment of the present invention to preventing line with ground (grounding switch) from closing breaker (disconnecting switch)
One schematic diagram.
Fig. 6 is the judgement the in the embodiment of the present invention to preventing line with ground (grounding switch) from closing breaker (disconnecting switch)
Two schematic diagrames.
To preventing mistakenly entering charged chamber from carrying out judgement schematic diagram in Fig. 7 embodiment of the present invention.
Specific embodiment
In order to realize invention technological means, reach purpose and effect is easy to understand, below with reference to specific implementation
Mode, the present invention is further explained.
According to Fig. 1,2,3,4,5,6,7, the present embodiment proposes a kind of topology based on electrical principle and prevents from accidentally grasping
Make method, comprising the following steps:
Step 1: establishing electrical source model, the place for generating electricity be referred to as power supply first, load is referred to as load source, if
The hanging earthing conductor or when grounding knife lock in some power equipment, then set one ground connection source of generation herein, if route or setting
There is no power supply in standby or be not connected with other sources, then set the promising suspended source of relevant device band herein, power supply is with S generation
It replaces, the load source is the equipment for consuming electric energy, is replaced with L, and the ground connection source is the certain of electric system and its electrical equipment
The part that part is connected with the earth, is replaced with E, and the suspended source is replaced with N, the junction between equipment and equipment, label
For tie point, the tie point is expressed as the point of the connection relationship of the tie point on electric system primary connection figure；
Step 2: according to the foundation of source model electrical in step 1, according to the connected relation of equipment and the transitivity in source, utilization
Topological tax source analytic approach to equipment carry out assignment and judgement with source attribute；
Step 3: the adjacency matrix for first assuming power grid is T(n × n), wherein n number of nodes, then obtain according to topological tax source analytic approach
It arrives:
The source vector of power grid is a dimensional vector A(n), when node i (i ∈ n) is there are when the source S, A(i)=S, as node i (i ∈
N) there are when other sources, corresponding source equally is assigned to node i；
Enable A(1 again)=A, with adjacency matrix T premultiplication source vector A(1), it is concluded that:
A(2)=TA(1)
Wherein, A(2) be A(1) source vector toward adjacent node spread after result；
Adjacency matrix T premultiplication source vector A(2 is used again), it obtains:
A(3)=TA(2)
Wherein, A(3) be A(2) source vector further toward adjacent node diffusion after result；
If there is the source L in the existing source S in the same tie point again, then it represents that power grid is in normal power supply state；If the same connection
There is the source E in the existing source S in point again when, then it represents that power grid is in short circuit grounding state；
Step 4: the anti-misoperation judgement based on electrical principle, according to the equipment category that topological tax source analytic approach obtains in step 3
Property, recycle the intermiscibility that can operate equipment sources and electrical principle to carry out the judgement of five-prevention operation, including accidentally close to preventing from accidentally dividing
It switchs, prevents on-load division disconnecting link, prevent band cable address (conjunction) ground line (grounding switch), prevent line with ground (grounding switch)
It closes breaker (disconnecting switch) and prevents the judgement of mistakenly entering charged chamber；
It is missed shown in the judgement table 1 specific as follows of combination switch to preventing from accidentally dividing:
Table 1
In table 1:
(1) if switch two sides are the source S or the source SL or SN, then it represents that this switch allows to separate or close；
(2) if after switching separately, side is the source S, and side is the source L, then it represents that this operation will lead to this line outage；
(3) if switch close before, side has the side L to have S, then it represents that allows to operate；
(4) if switch two sides, there is the source S in discovery side, and there is the source E in the other side, then it represents that this switch closes quiescing；
(5) other are similarly.
It is specifically as shown in table 2 to the judgement for preventing on-load division disconnecting link:
Table 2
In table 2:
(1) if there are the source S or the source SL in disconnecting link two sides, then quiescing；
(2) if disconnecting link side is the source S, side is the source N, then allowing to operate；
It is specifically as shown in table 3 to the judgement for preventing line with ground (grounding switch) from closing breaker (disconnecting switch):
Table 3
| Operate equipment two sides source state | E |
| S or SL | Electrical ground/or breaker or disconnecting switch quiescing are closed with ground |
| L | Just allow to operate after electrical verification |
| E | Just allow to operate after electrical verification |
| N | Allow to operate. |
In table 3:
(1) if equipment operation side is the source E, a side apparatus is the source S, carries out operating breaker or isolation switch, then it represents that the behaviour
Work is that line with ground (grounding switch) closes breaker (disconnecting switch) quiescing；
If the equipment of operation is hanging ground-wire or grounding knife lock, then it represents that the operation is that band cable address (conjunction) is grounded (earthing
Lock) quiescing；
(2) if equipment side is the source L, side is the source E, then it represents that the operation of the equipment operates after needing electrical verification；
When to preventing mistakenly entering charged chamber from judging, need according to operation task come determination range, then according to fig. 2 it can be concluded that
Table 4:
Table 4
When 146 switches turn maintenance by operation, 146 switches are defined first by operation and turn maintenance task, between judging where the switch
Every, task scope is determined again further according to the characteristics of switch unit, switch unit refers to switch and two sides disconnecting link is a switch unit,
If two sides have grounding switch or ground line to be also included, the equipment that operation exceeds the range is considered mistakenly entering into charged
Interval.
The method of the present invention not only has simple, quick by carrying out anti-misoperation judgement based on electrical objective law itself
Easily a little, and wide adaptability, with pass through "AND" "or" " non-" logic using equipment state, artificial formulate complicated rule
Method then is compared, have essence difference, the method for the present invention adapt to completely various power network wiring modes, grid operation mode and
Various complex operations avoid when there is execute-in-place not perfect caused maloperation or unlock operation because of logical formula
The problem of, while after the method for the present invention is fully implanted in program, woth no need to the anti-error logical formula of manual compiling, based on electrical visitor itself
Latching logic mistake can not be occurred by seeing rule, and stability is high.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (9)
1. a kind of topology based on electrical principle and preventing maloperation method, which comprises the following steps:
Step 1: establishing electrical source model, the place for generating electricity be referred to as power supply first, load is referred to as load source, if
The hanging earthing conductor or when grounding knife lock in some power equipment, then set one ground connection source of generation herein, if route or setting
There is no power supply in standby or be not connected with other sources, then sets the promising suspended source of relevant device band herein；
Step 2: according to the foundation of source model electrical in step 1, according to the connected relation of equipment and the transitivity in source, utilization
Topological tax source analytic approach to equipment carry out assignment and judgement with source attribute；
Step 3: the adjacency matrix for first assuming power grid is T(n × n), wherein n number of nodes, then obtain according to topological tax source analytic approach
It arrives:
The source vector of power grid is a dimensional vector A(n), when node i (i ∈ n) is there are when the source S, A(i)=S, as node i (i ∈
N) there are when other sources, corresponding source equally is assigned to node i；
Enable A(1 again)=A, with adjacency matrix T premultiplication source vector A(1), it is concluded that:
A(2)=TA(1)
Wherein, A(2) be A(1) source vector toward adjacent node spread after result；
Adjacency matrix T premultiplication source vector A(2 is used again), it obtains:
A(3)=TA(2)
Wherein, A(3) be A(2) source vector further toward adjacent node diffusion after result；
Step 4: the anti-misoperation judgement based on electrical principle, according to the equipment category that topological tax source analytic approach obtains in step 3
Property, recycle the intermiscibility that can operate equipment sources and electrical principle to carry out the judgement of five-prevention operation, including accidentally close to preventing from accidentally dividing
It switchs, prevents on-load division disconnecting link, prevent band cable address (conjunction) ground line (grounding switch), prevent line with ground (grounding switch)
It closes breaker (disconnecting switch) and prevents the judgement of mistakenly entering charged chamber.
2. a kind of topology based on electrical principle according to claim 1 and preventing maloperation method, it is characterised in that: institute
It states power supply in step 1 to be replaced with S, the load source is that the equipment for consuming electric energy is replaced with L, and the ground connection source is electric system
And its part that certain parts of electrical equipment are connected with the earth, it is replaced with E, the suspended source is replaced with N.
3. a kind of topology based on electrical principle according to claim 1 and preventing maloperation method, it is characterised in that: institute
The junction in step 1 between equipment and equipment is stated, is labeled as tie point, the tie point is in electric system primary connection figure
On, it is expressed as the point of the connection relationship of the tie point.
4. a kind of topology based on electrical principle according to claim 1 and preventing maloperation method, it is characterised in that: institute
State that if there is the source L in the existing source S in the same tie point in step 3 again, then it represents that power grid is in normal power supply state.
5. a kind of topology based on electrical principle according to claim 1 and preventing maloperation method, it is characterised in that: institute
State that if there is the source E in the existing source S in the same tie point in step 3 again, then it represents that power grid is in short circuit grounding state.
6. a kind of topology based on electrical principle according to claim 1 and preventing maloperation method, it is characterised in that: institute
State the judgement in step 4 to preventing mistake point from missing combination switch specifically:
(1) if switch two sides are the source S or the source SL or SN, then it represents that this switch allows to separate or close；
(2) if after switching separately, side is the source S, and side is the source L, then it represents that this operation will lead to this line outage；
(3) if switch close before, side has the side L to have S, then it represents that allows to operate；
(4) if switch two sides, there is the source S in discovery side, and there is the source E in the other side, then it represents that this switch closes quiescing.
7. a kind of topology based on electrical principle according to claim 1 and preventing maloperation method, it is characterised in that: institute
State the judgement in step 4 to on-load division disconnecting link is prevented specifically:
(1) if there are the source S or the source SL in disconnecting link two sides, then quiescing；
(2) if disconnecting link side is the source S, side is the source N, then allowing to operate.
8. a kind of topology based on electrical principle according to claim 1 and preventing maloperation method, it is characterised in that: institute
State the judgement in step 4 to preventing line with ground (grounding switch) from closing breaker (disconnecting switch) specifically:
(1) if equipment operation side is the source E, a side apparatus is the source S, carries out operating breaker or isolation switch, then it represents that the behaviour
Work is that line with ground (grounding switch) closes breaker (disconnecting switch) quiescing；
If the equipment of operation is hanging ground-wire or grounding knife lock, then it represents that the operation is that band cable address (conjunction) is grounded (earthing
Lock) quiescing；
If equipment side is the source L, side is the source E, then it represents that the operation of the equipment operates after needing electrical verification.
9. a kind of topology based on electrical principle according to claim 1 and preventing maloperation method, it is characterised in that: institute
It states in step 4 to when preventing the mistakenly entering charged chamber from judging, needs according to operation task come determination range, including switch, open
Close entire spacing devices where two sides disconnecting link and grounding switch, switch, by-pass switch interval and by belt switch interval, with the behaviour
Make the connected all spacing devices of task and route, main transformer and three side switch gap of main transformer or two sides switch gap, close station institute
There is the equipment of equipment and operation.
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| CN112421607A (en) * | 2020-09-23 | 2021-02-26 | 国网浙江省电力有限公司绍兴供电公司 | Transformer substation anti-misoperation system and method based on topology analysis |
| CN113471865A (en) * | 2021-07-02 | 2021-10-01 | 合肥优晟电力科技有限公司 | Topological analysis-based power grid anti-misoperation electrical principle judgment method |
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