CN103606009B - Power distribution network measuring quality appraisal procedure based on minimum distribution region - Google Patents
Power distribution network measuring quality appraisal procedure based on minimum distribution region Download PDFInfo
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Abstract
The present invention relates to power distribution network measuring quality evaluation areas, be specifically related to a kind of power distribution network measuring quality appraisal procedure based on minimum distribution region.Present invention determine that the minimum distribution region of cable and overhead transmission line hybrid structure network, and proposed distribution father and son's hierarchical mode, proposed busbar voltage based on this father and son's hierarchical mode and measure credibility decision principle, and give detailed quality of voltage evaluation index.Meanwhile, according to Distribution Network Frame feature, labor switch telemetry Changing Pattern, provide detailed switch remote measurement quality evaluation index.According to switch remote measurement quality evaluation index and distribution moving law, and give detailed switch remote signalling quality evaluation index.The present invention can preferably solve cable and the digital & analog signal quality reliability assessment problem in overhead transmission line mixing distribution network, it is possible to provides foundation for power distribution network state estimation data identification with revising, it is possible to provides data supporting for the assessment of power distribution network running status.
Description
Technical field
The present invention relates to power distribution network measuring quality evaluation areas, be specifically related to a kind of power distribution network based on minimum distribution region
Measuring quality appraisal procedure.
Background technology
In recent years, along with country's input energetically to power distribution network infrastructure, a collection of distribution network automated pilot project is suitable
Profit is by checking and accepting.Electric distribution network data collection scope constantly expands with scale, in addition load management system (CIS), geography information system
The access of the non real time system such as system (AM FM GIS), makes that the senior application of power distribution network is practical to be possibly realized.
Accurately and reliably measure the premise being by the senior computation of power distribution network, and the measurement collected in reality its
Often there is deviation in accuracy, due to the conductivity of algorithm, causing being measured by mistake is that the senior application result of foundation is with actual
Situation is saved as the biggest deviation.Accordingly, it is determined that the credibility of Real-time Collection digital & analog signal amount, various measurements are carried out quality can
Reliability is assessed, and uses measurement with a high credibility to calculate, has important practical significance.
Summary of the invention
For solving measuring quality reliability assessment problem during power distribution network runs, the present invention combines power distribution network feature, it is provided that
A kind of power distribution network measuring quality appraisal procedure based on minimum distribution region.
For achieving the above object, the scheme that the present invention uses is as follows:
A kind of power distribution network measuring quality appraisal procedure based on minimum distribution region, comprises the steps:
(1) the minimum distribution region of cable and overhead transmission line hybrid structure network is divided, for overhead transmission line minimum distribution
Virtual switch is set up in region；Every overhead feeder section is directly connected to distribution transforming more, and the load difference that feeder line section two end switch flows through is
Its band distribution transformer load, for the correct load condition describing built on stilts feeder line section, is equivalent to distribution transforming belonging to this feeder line section one and bears
Lotus, is received in feeder line section by a virtual switch T.The load that virtual switch flows through is feeder line section end points and switchs the load flow through
Difference.
(2) foundation minimum distribution region father and son's hierarchical mode:
1) it is as follows that foundation minimum distribution area adjacency table Q describes a minimum distribution region:
Qx=x | Fx,Cx}
Wherein, x be minimum distribution region enter domain switch, FxLoad for minimum distribution region goes out domain switch set, CxFor
The connection in minimum distribution region goes out domain switch set, particularly as follows:
Wherein, n load contained by minimum distribution region goes out domain switch number, and m connects territory contained by minimum distribution region and opens
Close number；
2) set up minimum distribution region father and son and be layered the minimum distribution region of adjacency list G description and the most adjacent minimum distribution
Father and son's hierarchical relational between region, is specifically described as:
G(Qx)={ QC1,QC2,…,QCm}
Wherein QxFor being the minimum distribution region into domain switch with x, C1, C2 ..., Cm is the connection in this minimum distribution region
Go out domain switch；
3) set up sub-island topological adjacency table W and describe the topological connection relation of whole minimum distribution sub-island, particularly as follows:
Wi={ G (Q1),G(Q2),…,G(QN)}
Wherein, i is minimum distribution sub-island numbering, and the minimum distribution number of regions that N is comprised by minimum distribution sub-island is all
Minimum distribution region father and son is layered adjacency list and i.e. constitutes the topological model of whole minimum distribution sub-island.
(3) evaluating busbar voltage measures the busbar voltage amount of credibility to rely on minimum distribution region father and son's hierarchical mode to determine
Mass metering evaluation index:
First the rule that should meet according to busbar voltage sets up evaluation principle respectively:
1) each busbar voltage should be in its range of nominal tension, and i.e. it should be less than ceiling voltage, more than minimum voltage, this
Time, set up the first busbar voltage measuring quality evaluation principle, it may be assumed that when busbar voltage is in the range of nominal tension, quality is commented
Valency index is certain value K1, when not in the range of nominal tension, quality evaluation index is 0；
2) busbar voltage flows to be gradually lowered along trend, and i.e. minimum distribution region voltage is less than his father's minimum distribution region
Voltage and more than its minimum distribution region voltage of son, the minimum distribution region voltage i.e. voltage of bus contained by it, if minimum distribution
Without bus in region, then feeder voltage contained by during busbar voltage refers to minimum distribution region, now, set up the second busbar voltage amount
Mass metering evaluation principle, it may be assumed that when minimum distribution region voltage meets subregion voltage limits with father's region voltage limit value condition,
Quality evaluation index is certain value K2, when being unsatisfactory for constraints, quality evaluation index is 0；
Then, according to two kinds of busbar voltage measuring quality evaluation principle, with two kinds of quality evaluation indexs and as bus
Voltage mass metering evaluates overall performane.
(4) determine evaluate switch telemetry credibility switch remote measurement quality evaluation index:
First respectively switch, according to minimum distribution region, the rule that remote measurement amount should meet and set up evaluation principle respectively:
1) if closing a floodgate out in minimum distribution region, domain switch number is more than 1, then this minimum distribution region respectively goes out domain switch remote measurement amount
Domain switch remote measurement amount need to be entered less than it, now set up the first switch remote measurement quality evaluation principle, it may be assumed that when minimum distribution region is closed
Lock goes out domain switch number, and more than 1 and it goes out domain switch remote measurement amount and enters domain switch remote measurement amount less than it, or the domain switch number that closes a floodgate out is equal to 1
Time, this goes out domain switch quality evaluation index is certain value K3, when closing a floodgate out in minimum distribution region, more than 1 and it goes out territory to domain switch number
When switch remote measurement amount enters domain switch remote measurement amount more than it, its evaluation index is 0；
2) minimum distribution region enters domain switch remote measurement amount should be substantially equal to all go out domain switch remote measurement amount summation, i.e. two
Person's difference is less than a certain error, now sets up the second switch remote measurement quality evaluation principle, it may be assumed that when minimum discrepancy territory, distribution region
When switch remote measurement amount difference is less than a certain error, the remote measurement quality evaluation index of all switches in this region is certain value K4If, not
Meet this constraints, then evaluation index is 0；
Then, according to two kinds switch remote measurement quality evaluation principles, with two kinds of quality evaluation indexs and as switch remote measurement
Quality evaluation overall performane.
(5) according to switch remote measurement quality evaluation index and distribution moving law, evaluation switch remote signalling data credibility is determined
Remote signalling quality evaluation index:
If minimum distribution section switch flows through trend, then its switch remote signalling state should be combined floodgate, according to this rule, switchs distant
Letter quality evaluation principle is: when minimum distribution section switch remote measurement quality evaluation index non-zero, and remote measurement amount non-zero, and this switch
When remote signalling state is for closing a floodgate, its remote signalling quality evaluation index is 1；If switch remote measurement quality evaluation index non-zero, and this switch is distant
Letter state is separating brake and distant when being measured as zero, and its remote signalling quality evaluation index is 1；If switch remote signalling quality evaluation index non-zero,
And switching remote signalling state when being separating brake and remote measurement amount non-zero, its remote signalling quality evaluation index is-1；If switch remote measurement quality evaluation
Index is zero, then this switch remote signalling state is indefinite, and its remote signalling quality evaluation index is 0.
Switch remote signalling erroneous judgement will make minimum distribution region father and son's hierarchical mode mistake, thus causes whole minimum distribution
Island topological model mistake, so the identification of switch remote signalling is most important.
Step (1) determines that cable with the division principle in the minimum distribution region of overhead transmission line hybrid structure network is: if point
Duan Kaiguan is all 2 distant points or 3 distant points, then each block switch is all the boundary node in minimum distribution region；If segmentation
Switch is a distant point or without digital & analog signal function, then block switch is all the interior point in minimum distribution region entirely；If block switch portion
Point having digital & analog signal function, part does not has digital & analog signal function, then the block switch possessing two distant functions can be as
Little distribution zone boundary node, the block switch not possessing two distant functions must be as the interior point in minimum distribution region.Wherein, one
Distant referring to has remote signaling function, and two distant refer to have digital & analog signal function, and three distant referring to have remote-detecting remote-controlling function.
Illustrating some terms below: for open loop operation power distribution network, each minimum distribution region has and only has
One trend flows into switch, is referred to as into domain switch；At least there is one or several trend and flow out switch, be referred to as domain switch；Go out
Domain switch can be divided into load go out domain switch and connect domain switch by switchtype, and load goes out domain switch and refers to be directly connected to join
The switch of piezoelectric transformer, connects domain switch and refers to connect the common switch in adjacent minimum distribution region.Switch remote measurement amount refers to
The trend that switch flows through, including active power, reactive power and electric current.
Below the special circumstances of each quality evaluation index are illustrated:
In step (3), the regulation initial minimum distribution region voltage containing transformer station's outlet switch is substation bus bar electricity
Pressure, its quality of voltage evaluation index is 1.
In step (4), the remote measurement quality evaluation index of regulation transformer station outlet switch is 1, i.e. this measurement is credible.
Step (4) if in switch and distant be measured as 0, and switch separating brake, then its remote measurement quality evaluation index is 1, virtual switch
Measuring initial value is 0, and its remote measurement quality evaluation index is 0.
Present invention determine that the minimum distribution region of cable and overhead transmission line hybrid structure network, and propose distribution father and son
Hierarchical mode, proposes busbar voltage based on this father and son's hierarchical mode and measures credibility decision principle, and give detailed electricity
Pressure quality evaluation index.Meanwhile, according to Distribution Network Frame feature, labor switch telemetry Changing Pattern, it is proposed that open
Close telemetry credibility decision principle, and provide detailed switch remote measurement quality evaluation index.Comment according to switch remote measurement quality
Valency index and distribution moving law, give switch remote signalling data credibility decision principle, and give detailed switch remote signalling
Quality evaluation index.
The present invention can preferably solve cable and comment with the digital & analog signal quality credibility in overhead transmission line mixing distribution network
Estimate problem, it is possible to provide foundation for power distribution network state estimation data identification with revising, it is possible to carry for the assessment of power distribution network running status
For data supporting.
Accompanying drawing explanation
Fig. 1 is the distribution network figure used by the embodiment of the present invention.
Detailed description of the invention
A kind of power distribution network measuring quality appraisal procedure based on minimum distribution region, comprises the steps:
(1) the minimum distribution region of cable and overhead transmission line hybrid structure network is determined, for overhead transmission line minimum distribution
Virtual switch is set up in region:
The division principle in minimum distribution region is: if block switch is all 2 distant points or three distant point, then each segmentation
Switch is all the boundary node in minimum distribution region.If block switch is a distant point or without digital & analog signal function, then segmentation is opened entirely
Pass is all the interior point in minimum distribution region.If block switch part has digital & analog signal function, part does not has digital & analog signal merit
Can, then the block switch possessing two distant functions can not possess the segmentation of two distant functions as minimum distribution zone boundary node
Switch must be as the interior point in minimum distribution region.
Every overhead feeder section is directly connected to distribution transforming more, and the load difference that feeder line section two end switch flows through is its band distribution transforming
Load, for the correct load condition describing built on stilts feeder line section, is equivalent to a load by distribution transforming belonging to this feeder line section, empty by one
Intend switch T to receive in feeder line section.The load that virtual switch flows through is feeder line section end points and switchs the load difference flow through.
(2) foundation minimum distribution region father and son's hierarchical mode:
For open loop operation power distribution network, each minimum distribution region has and only one of which trend flows into switch, be referred to as into
Domain switch；At least there is one or several trend and flow out switch, be referred to as domain switch；Go out domain switch can be divided into by switchtype
Load goes out domain switch and connects domain switch, and load goes out domain switch and refers to be directly connected to the switch of distribution transformer, connects territory
Switch refers to connect the common switch in adjacent minimum distribution region.
1) it is as follows that foundation minimum distribution area adjacency table Q describes a minimum distribution region:
Qx=x | Fx,Cx}
Wherein, x be minimum distribution region enter domain switch, FxLoad for minimum distribution region goes out domain switch set, CxFor
The connection in minimum distribution region goes out domain switch set, particularly as follows:
Wherein, n load contained by minimum distribution region goes out domain switch number, and m connects territory contained by minimum distribution region and opens
Close number.
2) set up minimum distribution region father and son and be layered the minimum distribution region of adjacency list G description and the most adjacent minimum distribution
Father and son's hierarchical relational between region, is specifically described as:
G(Qx)={ QC1,QC2,…,QCm}
Wherein QxFor being the minimum distribution region into domain switch with x, C1, C2 ..., Cm is the connection in this minimum distribution region
Go out domain switch.
3) set up sub-island topological adjacency table W and describe the topological connection relation of whole minimum distribution sub-island, particularly as follows:
Wi={ G (Q1),G(Q2),…,G(QN)}
Wherein, i is minimum distribution sub-island numbering, and the minimum distribution number of regions that N is comprised by minimum distribution sub-island is all
Minimum distribution region father and son is layered adjacency list and i.e. constitutes the topological model of whole minimum distribution sub-island.
(3) evaluating busbar voltage measures the busbar voltage amount of credibility to rely on minimum distribution region father and son's hierarchical mode to determine
Mass metering evaluation index:
For open loop operation power distribution network, each switching station, ring main unit busbar voltage should meet certain rule, first according to bus
The rule that voltage should meet sets up evaluation principle respectively:
1) each busbar voltage should be in its range of nominal tension, and i.e. it should be less than ceiling voltage, more than minimum voltage, specifically
It is described as:
Vdown≤V≤Vup
Wherein, V is busbar voltage；VdownFor minimum voltage value；VupFor maximum voltage value.
According to this rule, set up the first busbar voltage measuring quality evaluation principle, it may be assumed that when busbar voltage is in rated voltage
In the range of time, quality evaluation index is certain value K1, when not in the range of nominal tension, quality evaluation index is 0, if this is former
Busbar voltage quality evaluation index then is SV1, initial value is 0, and this principle is specifically described as:
2) busbar voltage flows to be gradually lowered along trend, and i.e. minimum distribution region voltage is less than his father's minimum distribution region
Voltage and more than its minimum distribution region voltage of son, the minimum distribution region voltage i.e. voltage of bus contained by it, be specifically described as
VQchild≤VQ≤VQfather
Wherein, VQFor minimum distribution region voltage value, VQchildFor the minimum distribution region voltage value of son, VQfatherMinimum for father
Distribution region voltage value.
If without bus in minimum distribution region, then feeder voltage contained by during busbar voltage refers to minimum distribution region.Work as minimum
During the subregion more than one in distribution region, VQchildValue is the maximum of all subregion magnitudes of voltage, when its subregion does not exists
Time, VQchildIt is 0.
According to this rule, set up the second busbar voltage measuring quality evaluation principle, it may be assumed that when minimum distribution region voltage is full
When foot subregion voltage limits is with father's region voltage limit value condition, quality evaluation index is certain value K2, when being unsatisfactory for retraining bar
During part, quality evaluation index is 0, if the busbar voltage quality evaluation index of this principle is SV2, initial value is 0, and this principle is concrete
It is described as:
Then, according to two kinds of busbar voltage measuring quality evaluation principle, with two kinds of quality evaluation indexs and as bus
Voltage mass metering evaluates overall performane, particularly as follows:
SV=SV1+SV2
Wherein, SVOverall performane value, K is evaluated for busbar voltage measuring quality1、K2∈ (0,1), K1+K2=1。
(4) determine evaluate switch telemetry credibility switch remote measurement quality evaluation index:
Switch remote measurement amount refers to switch the trend flow through, including switching active power, reactive power and the electric current flow through,
For minimum distribution region, its switch remote measurement amount need to meet certain rule.First remote measurement amount is respectively switched according to minimum distribution region
The rule that should meet sets up evaluation principle respectively:
1) if closing a floodgate out in minimum distribution region, domain switch number is more than 1, then this minimum distribution region respectively goes out domain switch remote measurement amount
Domain switch remote measurement amount need to be entered less than it, be specifically described as:
PQIi≤PQIx
Wherein, PQIxThe trend (active power, reactive power, electric current) that domain switch flows through, i ∈ is entered for minimum distribution region
G(Qx) go out domain switch for minimum distribution region, PQIiFor going out the trend (active power, reactive power, electric current) that domain switch i flows through.
According to this rule, set up the first switch remote measurement quality evaluation principle, it may be assumed that when territory of closing a floodgate out, minimum distribution region is opened
More than 1 and it goes out domain switch remote measurement amount and enters domain switch remote measurement amount less than it to close number, or when the domain switch number that closes a floodgate out is equal to 1, this goes out
Domain switch quality evaluation index is certain value K3, when minimum distribution region close a floodgate out domain switch number more than 1 and its to go out domain switch distant
Measuring its evaluation index when entering domain switch remote measurement amount more than it is 0, if the switch remote measurement quality evaluation index of this principle is SB1, just
Initial value is 0, and this principle is specifically described as:
Wherein, k closes a floodgate out domain switch number for minimum distribution region；The remote measurement quality evaluation of regulation transformer station outlet switch refers to
Be designated as 1, i.e. this measurement is credible.
2) minimum distribution region enters domain switch remote measurement amount should be substantially equal to all go out domain switch remote measurement amount summation, i.e. two
Person's difference is less than a certain error, is specifically described as:
Wherein ε is minimum distribution region error in measurement, can empirically value.
According to this rule, set up the second switch remote measurement quality evaluation principle, it may be assumed that when minimum distribution region discrepancy domain switch
When remote measurement amount difference is less than a certain error, the remote measurement quality evaluation index of all switches in this region is certain value K4If being unsatisfactory for
This constraints, then evaluation index is 0, if the switch remote measurement quality evaluation index of this principle is SB2, initial value is 0, this principle
It is specifically described as:
Then, according to two kinds switch remote measurement quality evaluation principles, with two kinds of quality evaluation indexs and as switch remote measurement
Quality evaluation overall performane, particularly as follows:
SB=SB1+SB2
Wherein, SBFor switch remote measurement quality evaluation overall performane, K3、K4∈ (0,1), K3+K4=1；
If switch remote measurement value is 0, and switch separating brake, then its remote measurement quality evaluation index is 1.Virtual switch measures initial value
0, remote measurement quality index is 0.
(5) according to switch remote measurement quality evaluation index and distribution moving law, evaluation switch remote signalling data credibility is determined
Remote signalling quality evaluation index:
If minimum distribution section switch flows through trend, then its switch remote signalling state should be combined floodgate, according to this rule, switchs distant
Letter quality evaluation principle is: when minimum distribution section switch remote measurement quality evaluation index non-zero, and remote measurement amount non-zero, and this switch
When remote signalling state is for closing a floodgate, its remote signalling quality evaluation index is 1；If switch remote measurement quality evaluation index non-zero, and this switch is distant
Letter state is separating brake and distant when being measured as zero, and its remote signalling quality evaluation index is 1；If switch remote signalling quality evaluation index non-zero,
And switching remote signalling state when being separating brake and remote measurement amount non-zero, its remote signalling quality evaluation index is-1；If switch remote measurement quality evaluation
Index is zero, then this switch remote signalling state is indefinite, and its remote signalling quality evaluation index is 0, if switch remote signalling quality evaluation index is
SBS, initial value is, is specifically described as:
Wherein, SBFor switch remote measurement quality evaluation overall performane, BSFor switch remote signalling state, BS=1 for closing a floodgate, BS=0 for dividing
Lock, η is switch telemetry errors, can empirically value.
Specific operation process below in conjunction with an object lesson explanation present invention:
If on-load switch A2 has two distant functions in power distribution network shown in Fig. 1, A1, A3 are without two distant functions, and V1, V2 are virtual opening
Close, each switching current and busbar voltage as it can be seen, above Kai Guan numerical value be busbar voltage, unit is kV, numerical value below switch
For switching current, unit is A, and band " * " is labeled as suspicious measuring point.Take K1、K3It is 0.6, K2、K4It is 0.4.Rated voltage
10.5kV。
By step (1) Suo Shu, the feeder line with S2 as on and off switch is cable distribution network, the division in its minimum distribution region
As shown in table 1:
Cable system minimum distribution region in table 1 Fig. 1
Feeder line with S1 as on and off switch is overhead feeder and cable feeder line mixing distribution network, if A1, A3 do not possess two
Distant function, A2 possesses two distant functions, then the division in its minimum distribution region is as shown in table 2:
Hybrid network minimum distribution region in table 2 Fig. 1
Wherein, V1, V2 are virtual switch node, and overhead transmission line block switch A2 is owing to having two distant functions, therefore it can be made
For the boundary node in minimum distribution region, and A1, A3 do not possess two distant functions, only as the interior point in minimum distribution region.By
In the direct-connected distribution transforming of overhead feeder section, so two virtual switches need to be increased by.
According to step (3) described method, the feeder line each region busbar voltage quality evaluation index with S1 as on and off switch is such as
Shown in table 3:
Each region busbar voltage measuring quality evaluation index in table 3 Fig. 1
According to step (4) described method, each switch remote measurement quality evaluation index is as shown in table 4:
Table 4 Fig. 1 respectively switchs remote measurement quality evaluation index
According to step (5) described method, the remote signalling quality evaluation index of switch F3 is-1, and the remote signalling quality of other switches is commented
Valency index is 1.
Claims (6)
1. a power distribution network measuring quality appraisal procedure based on minimum distribution region, it is characterised in that comprise the steps:
(1) the minimum distribution region of cable and overhead transmission line hybrid structure network is divided, for overhead transmission line minimum distribution region
Set up virtual switch；
(2) foundation minimum distribution region father and son's hierarchical mode:
1) it is as follows that foundation minimum distribution area adjacency table Q describes a minimum distribution region:
Qx=x | Fx,Cx}
Wherein, x be minimum distribution region enter domain switch, FxLoad for minimum distribution region goes out domain switch set, CxFor minimum
The connection in distribution region goes out domain switch set, particularly as follows:
Wherein, n load contained by minimum distribution region goes out domain switch number, and m connects domain switch number contained by minimum distribution region；
2) set up minimum distribution region father and son and be layered the minimum distribution region of adjacency list G description and the most adjacent minimum distribution region
Between father and son's hierarchical relational, be specifically described as:
Wherein QxFor being the minimum distribution region into domain switch with x, C1,C2,...,CmConnection for this minimum distribution region goes out territory
Switch；
3) set up sub-island topological adjacency table W and describe the topological connection relation of whole minimum distribution sub-island, particularly as follows:
Wi={ G (Q1),G(Q2),...,G(QN)}
Wherein, i is minimum distribution sub-island numbering, the minimum distribution number of regions that N is comprised by minimum distribution sub-island, all minimums
Distribution region father and son is layered adjacency list and i.e. constitutes the topological model of whole minimum distribution sub-island；
(3) evaluating busbar voltage measures the busbar voltage measurement matter of credibility to rely on minimum distribution region father and son's hierarchical mode to determine
Amount evaluation index:
First the rule that should meet according to busbar voltage sets up evaluation principle respectively:
1) each busbar voltage should be in its range of nominal tension, and i.e. it should be less than ceiling voltage, more than minimum voltage, now, builds
The first busbar voltage measuring quality evaluation principle vertical, i.e. when busbar voltage is in the range of nominal tension, quality evaluation index
For certain value K1, when not in the range of nominal tension, quality evaluation index is 0；
2) busbar voltage flows to be gradually lowered along trend, and i.e. minimum distribution region voltage is less than his father's minimum distribution region voltage
And more than its minimum distribution region voltage of son, the minimum distribution region voltage i.e. voltage of bus contained by it, if minimum distribution region
Middle without bus, then feeder voltage contained by during busbar voltage refers to minimum distribution region, now, set up the second busbar voltage and measure matter
Amount evaluation principle, it may be assumed that when minimum distribution region voltage meets subregion voltage limits with father's region voltage limit value condition, quality
Evaluation index is certain value K2, when being unsatisfactory for constraints, quality evaluation index is 0；
Then, K1、K2∈ (0,1), K1+K2=1, according to two kinds of busbar voltage measuring quality evaluation principle, with two kinds of quality evaluations
Index and as busbar voltage measuring quality evaluate overall performane；
(4) determine evaluate switch telemetry credibility switch remote measurement quality evaluation index:
First respectively switch, according to minimum distribution region, the rule that remote measurement amount should meet and set up evaluation principle respectively:
1) if closing a floodgate out in minimum distribution region, domain switch number is more than 1, then this minimum distribution region respectively goes out domain switch remote measurement amount needs little
Enter domain switch remote measurement amount in it, now set up the first switch remote measurement quality evaluation principle, i.e. close a floodgate out when minimum distribution region
Domain switch number is more than 1 and it goes out domain switch remote measurement amount and enters domain switch remote measurement amount less than it, or when the domain switch number that closes a floodgate out is equal to 1,
This goes out domain switch quality evaluation index is certain value K3, when closing a floodgate out in minimum distribution region, more than 1 and it goes out territory and opens domain switch number
Closing its evaluation index when remote measurement amount enters domain switch remote measurement amount more than it is 0；
2) minimum distribution region enters domain switch remote measurement amount should be substantially equal to all go out domain switch remote measurement amount summation, i.e. both are poor
Value, less than minimum distribution region error in measurement, now sets up the second switch remote measurement quality evaluation principle, it may be assumed that when minimum distribution district
When discrepancy domain switch remote measurement amount difference in territory is less than minimum distribution region error in measurement, the remote measurement matter of all switches in minimum distribution region
Amount evaluation index is certain value K4If not satisfying the constraint condition, then evaluation index is 0；
Then, K3、K4∈ (0,1), K3+K4=1, according to two kinds of switch remote measurement quality evaluation principles, with two kinds of quality evaluation indexs
And as switch remote measurement quality evaluation overall performane；
(5) according to switch remote measurement quality evaluation index and distribution moving law, determine and evaluate the distant of switch remote signalling data credibility
Letter quality evaluation index:
If minimum distribution section switch flows through trend, then its switch remote signalling state should be combined floodgate, according to this rule, switchs remote signalling matter
Amount evaluation principle is: when minimum distribution section switch remote measurement quality evaluation index non-zero, and remote measurement amount non-zero, and this switch remote signalling
When state is for closing a floodgate, its remote signalling quality evaluation index is 1；If switch remote measurement quality evaluation index non-zero, and this switch remote signalling shape
State is separating brake and distant when being measured as zero, and its remote signalling quality evaluation index is 1；If switch remote signalling quality evaluation index non-zero, and open
When pass remote signalling state is separating brake and remote measurement amount non-zero, its remote signalling quality evaluation index is-1；If switch remote measurement quality evaluation index
Be zero, then this switch remote signalling state is indefinite, and its remote signalling quality evaluation index is 0.
Power distribution network measuring quality appraisal procedure based on minimum distribution region the most according to claim 1, it is characterised in that:
Step (1) determines that cable with the division principle in the minimum distribution region of overhead transmission line hybrid structure network is: if block switch is all
Be 2 distant points or 3 distant points, then each block switch is all the boundary node in minimum distribution region；If block switch is entirely
Distant point or without digital & analog signal function, then block switch is all the interior point in minimum distribution region；If block switch part has distant
Letter telemetry function, part does not has digital & analog signal function, then possess the block switch of two distant functions as minimum distribution regional edge
Boundary's node, the block switch not possessing two distant functions must be as the interior point in minimum distribution region.
Power distribution network measuring quality appraisal procedure based on minimum distribution region the most according to claim 1, it is characterised in that:
For open loop operation power distribution network, each minimum distribution region has and only one of which trend flows into switch, is referred to as into domain switch；Extremely
There is a trend less and flow out switch, be referred to as domain switch；Go out domain switch by switchtype can be divided into load go out domain switch and
Connecting domain switch, load goes out domain switch and refers to be directly connected to the switch of distribution transformer, connects domain switch and refers to connect phase
The common switch in adjacent minimum distribution region.
Power distribution network measuring quality appraisal procedure based on minimum distribution region the most according to claim 1, it is characterised in that:
In step (3), the regulation initial minimum distribution region voltage containing transformer station's outlet switch is substation bus bar voltage, its voltage
Quality evaluation index is 1.
Power distribution network measuring quality appraisal procedure based on minimum distribution region the most according to claim 1, it is characterised in that:
In step (4), the remote measurement quality evaluation index of regulation transformer station outlet switch is 1, i.e. this measurement is credible.
Power distribution network measuring quality appraisal procedure based on minimum distribution region the most according to claim 5, it is characterised in that:
Step (4) if in switch and distant be measured as 0, and switch separating brake, then its remote measurement quality evaluation index is 1, and virtual switch measures initial value
Being 0, its remote measurement quality evaluation index is 0.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005073346A (en) * | 2003-08-22 | 2005-03-17 | Toshiba Corp | System, method, and program for evaluating electric power quality |
| CN102723711A (en) * | 2012-06-08 | 2012-10-10 | 陕西电力科学研究院 | Cable power distribution network estimation method based on credibility |
| CN103247008A (en) * | 2013-05-07 | 2013-08-14 | 国家电网公司 | Quality evaluation method of electricity statistical index data |
-
2013
- 2013-12-10 CN CN201310664546.2A patent/CN103606009B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005073346A (en) * | 2003-08-22 | 2005-03-17 | Toshiba Corp | System, method, and program for evaluating electric power quality |
| CN102723711A (en) * | 2012-06-08 | 2012-10-10 | 陕西电力科学研究院 | Cable power distribution network estimation method based on credibility |
| CN103247008A (en) * | 2013-05-07 | 2013-08-14 | 国家电网公司 | Quality evaluation method of electricity statistical index data |
Non-Patent Citations (2)
| Title |
|---|
| 基于改进雷达图的配电网综合状态评估实用方法;张伟等;《电力系统保护与控制》;20130616;第41卷(第12期);全文 * |
| 采用数据可信度提高配电自动化数据一致性;刘健等;《继电器》;20030915;第31卷(第9期);全文 * |
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