CN103679562A - Power grid measurement data monitoring method and system - Google Patents
Power grid measurement data monitoring method and system Download PDFInfo
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- CN103679562A CN103679562A CN201310722130.1A CN201310722130A CN103679562A CN 103679562 A CN103679562 A CN 103679562A CN 201310722130 A CN201310722130 A CN 201310722130A CN 103679562 A CN103679562 A CN 103679562A
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Abstract
The invention discloses a power grid measurement data monitoring method and system. The method includes the steps: acquiring bus voltage measurement data, line active measurement data and line reactive measurement data of a monitored power grid system from an energy management system; pairing the bus voltage measurement data and calculating bus voltage difference of the monitored power grid system according to the paired bus voltage measurement data; pairing the line active measurement data and calculating active power difference between a line home terminal and an opposite terminal of the monitored power grid system according to the paired line active measurement data; pairing the line reactive measurement data and calculating reactive power difference between the line home terminal and the opposite terminal of the monitored power grid system according to the paired line reactive measurement data; monitoring bus voltage, the line active measurement data and the line reactive measurement data by a threshold value analysis method, and giving an alarm for the monitored power grid system according to monitoring results. By the aid of the scheme, the efficiency of monitoring specific measurement data is improved.
Description
Technical field
The present invention relates to power network monitoring technical field, particularly relate to electrical network metric data monitoring method and system.
Background technology
The quality of operation of power networks basic data has directly determined the practical level of various advanced analysis and application, also has a strong impact on accuracy, reliability and lean that power scheduling is controlled.For electrical network metric data problem, power regulation center main will be analyzed and location by State Estimation means.State estimation essence is a kind of Generalized Filter, its ultimate principle is that supposition electric network model and parameter are accurate, utilize amount of redundancy measurement information and various constraint condition that the raw data that comprise incomplete or wrong metric data are become to correct, comprehensive ripe data, aspect raising electrical network metric data accuracy rate, bringing into play remarkable effect.
Yet, state estimation is that all data of monitored network system are monitored, feature difference and the attention degree of O&M personnel to dissimilar metric data of not considering dissimilar metric data, in to the observation process of particular type metric data, efficiency is low.
Summary of the invention
Based on this, being necessary, for the low problem of efficiency in the observation process of the particular type metric data of monitored network system, provides a kind of electrical network metric data monitoring method and system
An electrical network metric data monitoring method, comprises step:
From energy management system, obtain the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system;
According to plant stand numbering and the electric pressure of described busbar voltage metric data, each bus metric data is matched, according to each pairing busbar voltage metric data, calculate the busbar voltage diversity factor of monitored network system;
According to the circuit number of the meritorious metric data of described circuit, the meritorious metric data of each circuit is matched, according to the meritorious metric data of each pairing circuit, calculate circuit local terminal and the opposite end active power diversity factor of monitored network system;
According to the circuit number of the idle metric data of described circuit, the idle metric data of each circuit is matched, according to the idle metric data of each pairing circuit, calculate circuit local terminal and the opposite end reactive power diversity factor of monitored network system;
Respectively by the busbar voltage diversity factor of monitored network system, circuit local terminal and opposite end active power diversity factor and circuit local terminal and opposite end reactive power diversity factor and corresponding predetermined threshold value comparison, when busbar voltage diversity factor, circuit local terminal and opposite end active power diversity factor or circuit local terminal or opposite end reactive power diversity factor are greater than corresponding predetermined threshold value, monitored network system is carried out to alarm.
An electrical network metric data monitoring system, comprising:
Metric data acquisition module, for obtaining the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system from energy management system;
Metric data matching module, for plant stand numbering and electric pressure according to described busbar voltage metric data, each bus metric data is matched, according to the circuit number of the meritorious metric data of described circuit, the meritorious metric data of each circuit is matched, according to the circuit number of the idle metric data of described circuit, the idle metric data of each circuit is matched;
Metric data diversity factor computing module, for calculate the busbar voltage diversity factor of monitored network system according to each pairing busbar voltage metric data, according to the meritorious metric data of each pairing circuit, calculate circuit local terminal and the opposite end active power diversity factor of monitored network system, according to the idle metric data of each pairing circuit, calculate circuit local terminal and the opposite end reactive power diversity factor of monitored network system;
Alarm module, be used for respectively by the busbar voltage diversity factor of monitored network system, circuit local terminal and opposite end active power diversity factor and circuit local terminal and opposite end reactive power diversity factor and corresponding predetermined threshold value comparison, when busbar voltage diversity factor, circuit local terminal and opposite end active power diversity factor or circuit local terminal or opposite end reactive power diversity factor are greater than corresponding predetermined threshold value, monitored network system is carried out to alarm.
Above-mentioned electrical network metric data monitoring method and system, by obtain the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system from energy management system, and according to relevant information, complete one by one the pairing of metric data, obtain the meritorious and idle metric data of circuit of busbar voltage, the circuit of pairing; And calculate busbar voltage diversity factor, circuit local terminal and opposite end active power diversity factor and circuit local terminal and opposite end reactive power diversity factor, use Threshold Analysis method to analyze and produce warning information to metric data quality, thereby improved the meritorious metric data of busbar voltage metric data, circuit in monitored network system and the monitoring efficiency of the idle metric data of circuit.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of electrical network metric data monitoring method embodiment of the present invention;
Fig. 2 is the structural representation of electrical network metric data monitoring system embodiment of the present invention.
Embodiment
Each embodiment for electrical network metric data monitoring method of the present invention and system is described in detail below.
As shown in Figure 1, the schematic flow sheet for electrical network metric data monitoring method embodiment of the present invention, comprising:
Step S101: the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit that obtain monitored network system from energy management system;
Can pass through Real-time Obtaining EMS(energy management system)/SCADA (Supervisory Control And Data Acquisition, data acquisition and supervisor control) in the electrical network metric data of monitored network system, wherein, SCADA is the subset of EMS.Thereby obtain the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system.
In an embodiment, step S101 comprises therein:
From energy management system, obtain in real time the electrical network metric data bag of monitored network system;
According to the data type of electrical network metric data bag, coding rule, electrical network metric data bag is resolved;
According to the type number of metric data after resolving, obtain the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system.
The electrical network metric data that the present embodiment can transmit by Real-time Obtaining EMS/SCADA, and according to file type, coding rule, electrical network metric data is resolved to obtain and resolve rear metric data, thereby obtain busbar voltage metric data, the meritorious metric data of circuit and the idle metric data of circuit according to type number.Because busbar voltage metric data, the meritorious metric data of circuit and the idle metric data of circuit are that electrical network O&M personnel pay close attention to and be prone to abnormal data, so the metric data of attaching most importance to.
In an embodiment, by standard web-service interface, from energy management system, obtain the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system therein.Employing standard web-service interface obtains electrical network metric data, makes the present invention have stronger compatibility and applicability.Wherein, electrical network metric data can CIM, the file type of the different coding rule such as E form stores.Concrete, can realize and having received and the function of resolving different coding rule electrical network metric data, the electrical network metric data can automatic acquisition EMS/SCADA transmitting, resolve the electrical network metric data file dissimilar, coding rule difference is larger, as CIM file, E formatted file etc., and obtain busbar voltage metric data, the meritorious metric data of circuit and the idle metric data of circuit.
Step S102: according to plant stand numbering and the electric pressure of busbar voltage metric data, each bus metric data is matched, calculate the busbar voltage diversity factor of monitored network system according to each pairing busbar voltage metric data;
According to relevant information one by one bus complete the pairing of busbar voltage metric data, obtain the busbar voltage metric data of pairing.Such as, therein in an embodiment, according to plant stand numbering and the electric pressure of busbar voltage metric data, each bus metric data is carried out to pairing step, comprising: according to the plant stand numbering of busbar voltage metric data and busbar voltage examination reference value, determine respectively the electric pressure of plant stand title and bus; The busbar voltage metric data of identical plant stand title and identical electric pressure is made as to a pairing, obtains the busbar voltage metric data of pairing.
The present embodiment, according to plant stand table numbering, is determined plant stand title; According to bus table numbering, determine bus title; According to busbar voltage examination reference value, determine the electric pressure of bus.Based on these information, plant stand retrieves all busbar voltage metric data under each electric pressure one by one, and wherein each busbar voltage metric data of the identical electric pressure of same plant stand, as a pairing, can complete the pairing of busbar voltage metric data accordingly.
According to the busbar voltage metric data after pairing, calculate busbar voltage diversity factor, busbar voltage diversity factor refers to the difference of busbar voltage.Such as, in an embodiment, adopt following formula to calculate busbar voltage diversity factor therein:
ΔU=max|U
i-U
j|，i!=j
Wherein, Δ U represents busbar voltage diversity factor, U
i, U
jthe voltage magnitude that represents i, j bar bus in many buses of identical plant stand numbering and identical electric pressure.Such as having the bus of the identical plant stand numbering of n bar and identical electric pressure, U
i, U
jrepresent the i in n bar bus, the voltage magnitude of j bar bus, Δ U is the maximal value of the voltage magnitude difference of any two buses in n bar bus.I and j are unequal.
Step S103: according to the circuit number of the meritorious metric data of circuit, the meritorious metric data of each circuit is matched, calculate circuit local terminal and the opposite end active power diversity factor of monitored network system according to the meritorious metric data of each pairing circuit;
According to relevant information one by one circuit complete the pairing of the meritorious metric data of circuit, obtain the meritorious metric data of circuit of pairing.Such as, in an embodiment, according to the circuit number of the meritorious metric data of circuit, the meritorious metric data of each circuit is carried out to pairing step therein, comprising: according to circuit, line name is determined in the meritorious circuit number measuring; The meritorious metric data of circuit that line name is identical is made as a pairing, obtains the meritorious metric data of circuit of pairing.
The present embodiment, according to the meritorious type number that measures of circuit, determines that type is the meritorious metric data of circuit; According to circuit table numbering, determine line name; Based on the meritorious metric data of these information and this opposite end of circuit, there is this condition of identical line name, can go out the meritorious metric data in this opposite end of circuit by line-by-line path searching, wherein the meritorious metric data in this opposite end of same circuit, as a pairing, can complete the pairing of the meritorious metric data of circuit accordingly.
Local and the opposite end active power diversity factor according to the meritorious metric data computational scheme of the circuit after pairing, circuit this locality and opposite end active power diversity factor refer to the difference of circuit two ends active power.Such as, in an embodiment, according to the meritorious metric data of each pairing circuit, calculate circuit local terminal and the opposite end active power diversity factor step of monitored network system therein, comprising:
Adopt following formula computational scheme local terminal and opposite end active power diversity factor:
ΔP=|P
b+P
d|
Wherein, Δ P represents circuit local terminal and opposite end active power diversity factor, P
brepresent circuit local terminal active power, P
dthe active power that represents circuit opposite end.Because one of this opposite end of same circuit flows into an outflow, thereby the meritorious numerical symbol in this opposite end is contrary.The P here
band P
dsigned numerical value.
Step S104: according to the circuit number of the idle metric data of circuit, the idle metric data of each circuit is matched, calculate circuit local terminal and the opposite end reactive power diversity factor of monitored network system according to the idle metric data of each pairing circuit;
According to relevant information one by one circuit complete the pairing of the idle metric data of circuit, obtain the idle metric data of circuit of pairing.Such as, in an embodiment, according to the circuit number of the idle metric data of circuit, the idle metric data of each circuit is carried out to pairing step therein, comprising:
According to the circuit number of the idle metric data of circuit, determine line name;
The idle metric data of circuit that line name is identical is made as a pairing, obtains the idle metric data of circuit of pairing.
The present embodiment, according to the idle measurement type number of circuit, determines that type is the idle metric data of circuit; According to circuit table numbering, determine line name; Based on the idle metric data of these information and this opposite end of circuit, there is this condition of identical line name, can go out the idle metric data in this opposite end of circuit by line-by-line path searching, wherein the idle metric data in this opposite end of same circuit, as a pairing, can complete the pairing of the idle metric data of circuit accordingly.
Local and the opposite end reactive power diversity factor according to the idle metric data computational scheme of the circuit after pairing, circuit this locality and opposite end reactive power diversity factor refer to the difference of circuit two ends reactive power.Such as, in an embodiment, according to the idle metric data of each pairing circuit, calculate circuit local terminal and the opposite end reactive power diversity factor step of monitored network system therein, comprising:
Adopt following formula computational scheme local terminal and opposite end reactive power diversity factor:
ΔQ=||Q
m|-|Q
n||
Wherein, Δ Q represents circuit local terminal and opposite end reactive power diversity factor, Q
mthe reactive power that represents circuit local terminal, Q
nthe reactive power that represents circuit opposite end.
Step S105: respectively by the busbar voltage diversity factor of monitored network system, circuit local terminal and opposite end active power diversity factor and circuit local terminal and opposite end reactive power diversity factor and corresponding predetermined threshold value comparison, when busbar voltage diversity factor, circuit local terminal and opposite end active power diversity factor or circuit local terminal or opposite end reactive power diversity factor are greater than corresponding predetermined threshold value, monitored network system is carried out to alarm.
This programme is that the mode that adopts Threshold Analysis method realizes busbar voltage, circuit is meritorious and the monitoring of the idle metric data of circuit.
The threshold value that busbar voltage diversity factor is corresponding with busbar voltage metric data compares, if busbar voltage diversity factor numerical value is not more than its corresponding threshold value, indicates busbar voltage emphasis metric data without extremely; Otherwise, when busbar voltage diversity factor numerical value is greater than its corresponding threshold value, indicates busbar voltage metric data and exist extremely, monitored network system is carried out alarm and in alarm window, produced corresponding warning information.Busbar voltage diversity factor threshold value can arrange or revise according to the demand of quality of data precision and examination.
Threshold value corresponding to the meritorious metric data of circuit local terminal and opposite end active power diversity factor and circuit compared, if the meritorious diversity factor numerical value in this opposite end of circuit is not more than its corresponding threshold value, indicate the meritorious emphasis metric data of circuit without extremely; Otherwise, when the meritorious diversity factor numerical value in this opposite end of circuit is greater than its corresponding threshold value, indicates the meritorious metric data of circuit and exist extremely, monitored network system is carried out alarm and in alarm window, produced corresponding warning information.The meritorious diversity factor threshold value in this opposite end of circuit can arrange or revise according to the demand of quality of data precision and examination.
Circuit local terminal and the opposite end reactive power diversity factor threshold value corresponding with the idle metric data of circuit are compared, if the idle diversity factor numerical value in this opposite end of circuit is not more than its corresponding threshold value, indicate the idle emphasis metric data of circuit without extremely; Otherwise, when the idle diversity factor numerical value in this opposite end of circuit is greater than its corresponding threshold value, indicates the idle metric data of circuit and exist extremely, monitored network system is carried out alarm and in alarm window, produced corresponding warning information.Diversity factor threshold value that this opposite end of circuit is idle can arrange or revise according to the demand of quality of data precision and examination.
In adopting Threshold Analysis method, as long as busbar voltage metric data, the meritorious metric data of circuit, one of them is abnormal for circuit is idle metric data, all monitored network system is carried out to alarm.
Wherein, step S102, step S103, step S104 do not have sequence limit, can freely adjust, and can carry out simultaneously yet.In addition, the various embodiments described above can independent assortment, does not repeat them here.
Electrical network metric data method for supervising of the present invention, can adopt standard WEB SERVICE interface to obtain the electrical network metric data that EMS/SCADA transmits, there is stronger compatibility and applicability, automatically resolve and process electrical network emphasis metric data, can be to dissimilar, the electrical network metric data of different coding rule is resolved and is processed, and realized busbar voltage by the inherent feature of dissimilar emphasis metric data, retrieval and the pairing of the meritorious and idle three kinds of emphasis metric data of circuit of circuit, adopt busbar voltage diversity factor, the meritorious diversity factor in this opposite end of circuit and the idle diversity factor in this opposite end of circuit reflect respectively and isolated-phase buses voltage, the quality problems of the meritorious and idle three kinds of emphasis metric data of circuit of circuit, thereby improved the busbar voltage metric data in monitored network system, the monitoring efficiency of the meritorious metric data of circuit and the idle metric data of circuit, and can provide effective warning information for O&M personnel analyze with location electrical network emphasis metric data problem, for guaranteeing that the quality of electrical network emphasis metric data and then the quality of lifting electrical network overall data have very strong realistic meaning.
Realizing all or part of flow process in the various embodiments described above method, is to complete by computer program, and this program can be stored in computer read/write memory medium, and this program, when carrying out, can comprise as the flow process of the embodiment of the method.Wherein, this storage medium can be CD, disk, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
The present invention also provides a kind of electrical network metric data monitoring system, and as shown in Figure 2, the structural representation for invention electrical network metric data supervisory system embodiment, comprising:
Metric data acquisition module 210, for obtaining the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system from energy management system;
Metric data matching module 220, for plant stand numbering and electric pressure according to busbar voltage metric data, each bus metric data is matched, according to the circuit number of the meritorious metric data of circuit, the meritorious metric data of each circuit is matched, according to the circuit number of the idle metric data of circuit, the idle metric data of each circuit is matched;
Metric data diversity factor computing module 230, for calculate the busbar voltage diversity factor of monitored network system according to each pairing busbar voltage metric data, according to the meritorious metric data of each pairing circuit, calculate circuit local terminal and the opposite end active power diversity factor of monitored network system, according to the idle metric data of each pairing circuit, calculate circuit local terminal and the opposite end reactive power diversity factor of monitored network system;
In an embodiment, metric data acquisition module 210 comprises therein:
Electrical network metric data bag acquisition module, for obtaining in real time the electrical network metric data bag of monitored network system from energy management system;
Parsing module, for resolving electrical network metric data bag according to the data type of electrical network metric data bag, coding rule;
Sub-metric data acquisition module, for obtaining the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system according to the type number of metric data after resolving.
In an embodiment, metric data matching module 220 comprises busbar voltage metric data matching module, the meritorious metric data matching module of circuit and the idle metric data matching module of circuit therein,
Busbar voltage metric data matching module comprises:
Title and classification module, for determining respectively the electric pressure of plant stand title and bus according to the plant stand numbering of busbar voltage metric data and busbar voltage examination reference value;
The first sub-matching module, for the busbar voltage metric data of identical plant stand title and identical electric pressure is made as to a pairing, obtains the busbar voltage metric data of pairing,
In an embodiment, metric data matching module 220 comprises busbar voltage metric data matching module, the meritorious metric data matching module of circuit and the idle metric data matching module of circuit therein,
The meritorious metric data matching module of circuit comprises:
The first line name determination module, for determining line name according to the circuit number of the meritorious measurement of circuit;
The second sub-matching module, for the identical meritorious metric data of circuit of line name is made as to a pairing, obtains the meritorious metric data of circuit of pairing,
In an embodiment, metric data matching module 220 comprises busbar voltage metric data matching module, the meritorious metric data matching module of circuit and the idle metric data matching module of circuit therein,
Circuit is idle, and metric data matching module comprises:
The second line name determination module, for determining line name according to the circuit number of the idle metric data of circuit;
The 3rd sub-matching module, for the identical idle metric data of circuit of line name is made as to a pairing, obtains the idle metric data of circuit of pairing.
In an embodiment, metric data diversity factor computing module 230 comprises busbar voltage metric data diversity factor computing module, the meritorious metric data diversity factor computing module of circuit and the idle metric data diversity factor of circuit computing module therein,
Busbar voltage metric data diversity factor computing module is used for:
Adopt following formula to calculate busbar voltage diversity factor:
ΔU=max|U
i-U
j|，i!=j
Wherein, Δ U represents busbar voltage diversity factor, U
i, U
jthe voltage magnitude that represents i, j bar bus in many buses of identical plant stand numbering and identical electric pressure,
In an embodiment, metric data diversity factor computing module 230 comprises busbar voltage metric data diversity factor computing module, the meritorious metric data diversity factor computing module of circuit and the idle metric data diversity factor of circuit computing module therein,
The meritorious metric data diversity factor computing module of circuit is used for:
Adopt following formula computational scheme local terminal and opposite end active power diversity factor:
ΔP=|P
b+P
d|
Wherein, Δ P represents circuit local terminal and opposite end active power diversity factor, P
brepresent circuit local terminal active power, P
dthe active power that represents circuit opposite end,
In an embodiment, metric data diversity factor computing module 230 comprises busbar voltage metric data diversity factor computing module, the meritorious metric data diversity factor computing module of circuit and the idle metric data diversity factor of circuit computing module therein,
Circuit is idle, and metric data diversity factor computing module is used for:
Adopt following formula computational scheme local terminal and opposite end reactive power diversity factor:
ΔQ=||Q
m|-|Q
n||
Wherein, Δ Q represents circuit local terminal and opposite end reactive power diversity factor, Q
mthe reactive power that represents circuit local terminal, Q
nthe reactive power that represents circuit opposite end.
In an embodiment, metric data acquisition module 210 is for obtaining the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system from energy management system by standard web-service interface therein.
The various embodiments described above can independent assortment, and electrical network metric data monitoring system of the present invention and electrical network metric data monitoring method of the present invention are one to one, correlation technique feature in above-mentioned electrical network metric data monitoring method embodiment and technique effect thereof are all applicable to, in electrical network metric data monitoring system embodiment, not repeat them here.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an electrical network metric data monitoring method, is characterized in that, comprises step:
From energy management system, obtain the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system;
According to plant stand numbering and the electric pressure of described busbar voltage metric data, each bus metric data is matched, according to each pairing busbar voltage metric data, calculate the busbar voltage diversity factor of monitored network system;
According to the circuit number of the meritorious metric data of described circuit, the meritorious metric data of each circuit is matched, according to the meritorious metric data of each pairing circuit, calculate circuit local terminal and the opposite end active power diversity factor of monitored network system;
According to the circuit number of the idle metric data of described circuit, the idle metric data of each circuit is matched, according to the idle metric data of each pairing circuit, calculate circuit local terminal and the opposite end reactive power diversity factor of monitored network system;
Respectively by the busbar voltage diversity factor of monitored network system, circuit local terminal and opposite end active power diversity factor and circuit local terminal and opposite end reactive power diversity factor and corresponding predetermined threshold value comparison, when busbar voltage diversity factor, circuit local terminal and opposite end active power diversity factor or circuit local terminal or opposite end reactive power diversity factor are greater than corresponding predetermined threshold value, monitored network system is carried out to alarm.
2. electrical network metric data monitoring method according to claim 1, is characterized in that, the described meritorious metric data of busbar voltage metric data, circuit and the idle metric data step of circuit of obtaining monitored network system from energy management system, comprising:
From energy management system, obtain in real time the electrical network metric data bag of monitored network system;
According to the data type of electrical network metric data bag, coding rule, described electrical network metric data bag is resolved;
According to the type number of metric data after resolving, obtain the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system.
3. electrical network metric data monitoring method according to claim 1 and 2, is characterized in that,
The described numbering of the plant stand according to described busbar voltage metric data and electric pressure are carried out pairing step by each bus metric data, comprising:
According to the plant stand numbering of described busbar voltage metric data and busbar voltage examination reference value, determine respectively the electric pressure of plant stand title and bus;
The busbar voltage metric data of identical plant stand title and identical electric pressure is made as to a pairing, obtains the busbar voltage metric data of pairing,
And/or
According to the circuit number of the meritorious metric data of described circuit, the meritorious metric data of each circuit is carried out to pairing step, comprising:
According to described circuit, line name is determined in the meritorious circuit number measuring;
The meritorious metric data of circuit that line name is identical is made as a pairing, obtains the meritorious metric data of circuit of pairing,
And/or
Describedly according to the circuit number of the idle metric data of described circuit, the idle metric data of each circuit is carried out to pairing step, comprising:
According to the circuit number of the idle metric data of described circuit, determine line name;
The idle metric data of circuit that line name is identical is made as a pairing, obtains the idle metric data of circuit of pairing.
4. electrical network metric data monitoring method according to claim 1 and 2, is characterized in that,
The described busbar voltage diversity factor step of calculating monitored network system according to each pairing busbar voltage metric data, comprising:
Adopt following formula to calculate busbar voltage diversity factor:
ΔU=max|U
i-U
j|，i!=j
Wherein, Δ U represents busbar voltage diversity factor, U
i, U
jthe voltage magnitude that represents i, j bar bus in many buses of identical plant stand numbering and identical electric pressure,
And/or
Described circuit local terminal and the opposite end active power diversity factor step of calculating monitored network system according to the meritorious metric data of each pairing circuit, comprising:
Adopt following formula computational scheme local terminal and opposite end active power diversity factor:
ΔP=|P
b+P
d|
Wherein, Δ P represents circuit local terminal and opposite end active power diversity factor, P
brepresent circuit local terminal active power, P
dthe active power that represents circuit opposite end,
And/or
Described circuit local terminal and the opposite end reactive power diversity factor step of calculating monitored network system according to the idle metric data of each pairing circuit, comprising:
Adopt following formula computational scheme local terminal and opposite end reactive power diversity factor:
ΔQ=||Q
m|-|Q
n||
Wherein, Δ Q represents circuit local terminal and opposite end reactive power diversity factor, Q
mthe reactive power that represents circuit local terminal, Q
nthe reactive power that represents circuit opposite end.
5. electrical network metric data monitoring method according to claim 1 and 2, is characterized in that, the described meritorious metric data of busbar voltage metric data, circuit and the idle metric data step of circuit of obtaining monitored network system from energy management system, comprising:
By standard web-service interface, from energy management system, obtain the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system.
6. an electrical network metric data monitoring system, is characterized in that, comprising:
Metric data acquisition module, for obtaining the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system from energy management system;
Metric data matching module, for plant stand numbering and electric pressure according to described busbar voltage metric data, each bus metric data is matched, according to the circuit number of the meritorious metric data of described circuit, the meritorious metric data of each circuit is matched, according to the circuit number of the idle metric data of described circuit, the idle metric data of each circuit is matched;
Metric data diversity factor computing module, for calculate the busbar voltage diversity factor of monitored network system according to each pairing busbar voltage metric data, according to the meritorious metric data of each pairing circuit, calculate circuit local terminal and the opposite end active power diversity factor of monitored network system, according to the idle metric data of each pairing circuit, calculate circuit local terminal and the opposite end reactive power diversity factor of monitored network system;
Alarm module, be used for respectively by the busbar voltage diversity factor of monitored network system, circuit local terminal and opposite end active power diversity factor and circuit local terminal and opposite end reactive power diversity factor and corresponding predetermined threshold value comparison, when busbar voltage diversity factor, circuit local terminal and opposite end active power diversity factor or circuit local terminal or opposite end reactive power diversity factor are greater than corresponding predetermined threshold value, monitored network system is carried out to alarm.
7. electrical network metric data monitoring system according to claim 6, is characterized in that, described metric data acquisition module comprises:
Electrical network metric data bag acquisition module, for obtaining in real time the electrical network metric data bag of monitored network system from energy management system;
Parsing module, for resolving described electrical network metric data bag according to the data type of electrical network metric data bag, coding rule;
Sub-metric data acquisition module, for obtaining the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system according to the type number of metric data after resolving.
8. according to the electrical network metric data monitoring system described in claim 6 or 7, it is characterized in that, metric data matching module comprises busbar voltage metric data matching module, the meritorious metric data matching module of circuit and the idle metric data matching module of circuit,
Described busbar voltage metric data matching module comprises:
Title and classification module, for determining respectively the electric pressure of plant stand title and bus according to the plant stand numbering of described busbar voltage metric data and busbar voltage examination reference value;
The first sub-matching module, for the busbar voltage metric data of identical plant stand title and identical electric pressure is made as to a pairing, obtains the busbar voltage metric data of pairing,
And/or
The meritorious metric data matching module of described circuit comprises:
The first line name determination module, for determining line name according to the circuit number of the meritorious measurement of described circuit;
The second sub-matching module, for the identical meritorious metric data of circuit of line name is made as to a pairing, obtains the meritorious metric data of circuit of pairing,
And/or
Described circuit is idle, and metric data matching module comprises:
The second line name determination module, for determining line name according to the circuit number of the idle metric data of described circuit;
The 3rd sub-matching module, for the identical idle metric data of circuit of line name is made as to a pairing, obtains the idle metric data of circuit of pairing.
9. according to the electrical network metric data monitoring system described in claim 6 or 7, it is characterized in that, described metric data diversity factor computing module comprises busbar voltage metric data diversity factor computing module, the meritorious metric data diversity factor computing module of circuit and the idle metric data diversity factor of circuit computing module
Described busbar voltage metric data diversity factor computing module is used for:
Adopt following formula to calculate busbar voltage diversity factor:
ΔU=max|U
i-U
j|，i!=j
Wherein, Δ U represents busbar voltage diversity factor, U
i, U
jthe voltage magnitude that represents i, j bar bus in many buses of identical plant stand numbering and identical electric pressure,
And/or
The meritorious metric data diversity factor computing module of described circuit is used for:
Adopt following formula computational scheme local terminal and opposite end active power diversity factor:
ΔP=|P
b+P
d|
Wherein, Δ P represents circuit local terminal and opposite end active power diversity factor, P
brepresent circuit local terminal active power, P
dthe active power that represents circuit opposite end,
And/or
Described circuit is idle, and metric data diversity factor computing module is used for:
Adopt following formula computational scheme local terminal and opposite end reactive power diversity factor:
ΔQ=||Q
m|-|Q
n||
Wherein, Δ Q represents circuit local terminal and opposite end reactive power diversity factor, Q
mthe reactive power that represents circuit local terminal, Q
nthe reactive power that represents circuit opposite end.
10. according to the electrical network metric data monitoring system described in claim 6 or 7, it is characterized in that, described metric data acquisition module is for obtaining the meritorious metric data of busbar voltage metric data, circuit and the idle metric data of circuit of monitored network system from energy management system by standard web-service interface.
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| CN105335791A (en) * | 2014-08-07 | 2016-02-17 | 中国南方电网有限责任公司 | AC/DC large power grid coordinative optimization automatic control method and system |
| CN107872062A (en) * | 2017-12-22 | 2018-04-03 | 国网河北省电力有限公司衡水供电分公司 | A kind of anti-method for sending reactive limit value |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107872062A (en) * | 2017-12-22 | 2018-04-03 | 国网河北省电力有限公司衡水供电分公司 | A kind of anti-method for sending reactive limit value |
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Address after: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Co-patentee after: China Southern Power Grid Co., Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD. Address before: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Co-patentee before: China Southern Power Grid Co., Ltd. Patentee before: Electrical Power Research Institute of Guangdong Power Grid Corporation |
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