CN105958474A - Power transmission line dynamic capacity increasing method and system used for power grid regulation and control system - Google Patents
Power transmission line dynamic capacity increasing method and system used for power grid regulation and control system Download PDFInfo
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- CN105958474A CN105958474A CN201610279433.4A CN201610279433A CN105958474A CN 105958474 A CN105958474 A CN 105958474A CN 201610279433 A CN201610279433 A CN 201610279433A CN 105958474 A CN105958474 A CN 105958474A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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Abstract
The invention provides a power transmission line dynamic capacity increasing method and system used for a power grid regulation and control system. The system comprises a data processing module, a real-time calculation module, a capacity increasing analyzing module and a figure visualization module. The data processing module is used for obtaining device collection data in a power transmission and transformation system, and carrying out integration and identification on received device data with a line serving as the unit; the real-time calculation module is used for carrying out power transmission line dynamic current-carrying capacity calculation in real time on the data after identification; and the capacity increasing analyzing module is used for carrying out static safety evaluation analysis on the power grid, predicting the essentiality and feasibility of line capacity increasing in each period, and sending the result data to the figure visualization module. According to the invention, safety evaluation is carried out on the dynamic capacity increasing process from two aspect of equipment safety and power grid safety, and the safety of dynamic capacity increasing is ensured.
Description
Technical field
The present invention relates to a kind of electrical network dynamic compatibilization method and system, be specifically related to a kind of power grid regulation system transmission line of electricity
Dynamic compatibilization method and system.
Background technology
Dynamic compatibilization, on the premise of not breaking through existing safety code, calculates circuit current time by real-time data collection
Dynamic current-carrying capacity, make full use of the recessive capacity of transmission line of electricity objective reality.Dynamic compatibilization technology can be in load peak
Period brings significant economic benefit, has a good application prospect.
Research for dynamic compatibilization is based on power transmission and transformation system mostly at present, is analyzed single transmission line of electricity, research
Scope be concentrated mainly on data acquisition and calculating aspect.Owing to not possessing complete electric network model and the method for operation, it is only capable of
Monitor the safety of single line by remotely obtaining real-time running data from dispatching patcher, lack the analysis to power grid security.
And in actual electric network management and running, not only need to consider the safety of individual equipment, in addition it is also necessary to when ensureing whole operation of power networks
Static security, this make tradition the dynamic compatibilization result of calculation based on the equipment aspect accuracy when actual schedule apply with
Credibility is all under some influence.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the present invention provides a kind of power grid regulation system power transmission line dynamic capacity increase
Method and system, the present invention carries out security evaluation to dynamic compatibilization process in terms of equipment safety and power grid security two, it is ensured that
The safety of dynamic compatibilization.
In order to realize foregoing invention purpose, the present invention adopts the following technical scheme that:
A kind of power grid regulation system power transmission line dynamic capacity increase method, described method comprises the steps:
(1) from power transmission and transformation system, acquisition device gathers data, and including device status data and microclimate data, electrical network is adjusted
Described collection data are received, resolve and write into Databasce by Ore-controlling Role；
(2) in units of circuit, the device data received are integrated and identification, according to different types of data for
The impact of line energizing flow amount, selects one group of conservation data；
(3) data after using identification carry out transmission line dynamic current-carrying capacity calculating in real time；Define according to electrical network section,
The section comprising dynamic compatibilization circuit is carried out dynamic power limit calculating；
(4) the real-time section of electrical network is built, based on the real-time section of described electrical network and transmission line dynamic current-carrying capacity result of calculation,
Electrical network is carried out Static security assessment analysis, the power grid security of assessment dynamic compatibilization process；
(5) based on the real-time section of described electrical network, adjust the plan of acquisition and prediction data from saving, build following a period of time
Multi-period electrical network prediction section, carries out tidal current analysis in conjunction with transmission line dynamic current-carrying capacity result of calculation, to day part circuit
The Necessity and feasibility of increase-volume is predicted.
Preferably, described step (1) comprises the steps:
Step 1-1, Lead status, microclimate are derived from power transmission and transformation system data base standard E formatted data file, institute
Filename and the file content of stating E formatted data file all contain data acquisition markers；Described E formatted data file is led
Going out the cycle is 1 minute；
Step 1-2, by described E formatted file by FTP mode upload to power grid regulation security of system III district WEB take
Under business device assigned catalogue, it is sent to power grid regulation security of system II district dynamic compatibilization server via reverse isolation device corresponding
Under catalogue；
Dispose file interface program on step 1-3, dynamic compatibilization server, described data file detected, resolve,
Data storage service based on regulator control system, calls real-time database interface and analysis result is write real-time data base, call simultaneously
Sampling Interface will resolve data write historical data base.
Preferably, described step (2) comprises the steps:
Step 2-1, the missing data in described device data is supplemented, when conductor temperature, the single measurement of ambient temperature
During shortage of data, utilize the characteristic that these data are slowly varying, supplement with the moving average of history samples data；
Step 2-2, wind angle data are changed；
Step 2-3, in units of circuit, device data are integrated by type, calculate each type data meansigma methods,
And set deviation threshold value, when certain data deviation average reaches threshold value, these data are rejected from group, every time
Rejecting data, repeat this step, until not having abnormal data in group, i.e. finishing device data identification processes；
Step 2-4, through data identification process after, according to every kind of data type for the contribution of current carrying capacity of conductor, select respectively
Select and make current-carrying capacity and the most conservative numerical value of equipment state, as the final result of track data identification.
Preferably, described step 2-2 comprises the steps:
Step 2-2-1, overhead line structures are modeled, on the basis of direct north, safeguard the angle of itself and shaft tower front and back,
And the membership of attending device and shaft tower；
Step 2-2-2, receive wind angle data after, calculate wind direction and wire front and back according to Tower Model corresponding to device
Relative angle, is converted into acute angle；
Step 2-2-3, select the less angle of sine value as final wind angle data.
Preferably, described step 3 comprises the steps:
Step 3-1, use the complete line data after described data identification, calculate respectively according to the thermally-stabilised equilibrium equation of wire
Conductor allowable temperature is 70 DEG C of dynamic current-carrying capacities corresponding with when 80 DEG C, wherein under 70 DEG C of correspondences electrical network normal running (operation) conditions
Line current limit value, under normal circumstances line security monitoring and dynamic compatibilization forecast analysis in；80 DEG C the most right
Answer the line current limit value under grid failure state, be used for calculating in electrical network section dynamic power limit and capacity increasing process
N-1 Static security assessment；
Step 3-2, use circuit dynamic fault carrying current calculation result substitute static failure current limit, by formulaElectric current is converted to section power, in formula, UNFor rated voltage, unit is kV,
For power factor；W is section tidal current transfer ratio, and P is section power, If,minRepresent and take section all circuits dynamic fault
Minima in current-carrying capacity；Described circuit dynamic fault carrying current calculation result is the line electricity under described grid failure state
The result of calculation of restriction value.
Preferably, described step 4 comprises the steps:
Step 4-1, from the state estimation of the power grid regulation security of system I district senior application of regulator control system is applied, obtain electrical network mould
Type and real-time running data build the real-time section of described electrical network；
Step 4-2, for dynamic compatibilization circuit, use in the circuit dynamic fault current limit alternate data storehouse of calculating in real time
Line fault quiescent current limit value；
Electrical network static security is entered by the electrical network static security analysis method in step 4-3, the employing senior application module of regulator control system
Row is analyzed, if occurring without circuit or the out-of-limit situation of section, then shows that now capacity increasing process meets electrical network static security.
Preferably, described step 5 comprises the steps:
Step 5-1, from the state estimation of the power grid regulation security of system I district senior application of regulator control system is applied, obtain electrical network mould
Type and real-time running data build the real-time section of electrical network as ground state section；
Step 5-2, obtain generation schedule, ultra-short term, repair schedule data parsing a few days ago and write from saving adjusting system
Enter local real-time database；
Step 5-3, it was a section cycle with n minute, the data of extraction following a period of time from plan and prediction data,
According to saving the mapping relations that ground regulator control system equipment is set up, the device data being resolved to is added in ground state section, forms m
Individual prediction section；
Step 5-4, m the prediction section built is carried out Load flow calculation, analyze line current and the electrical network of day part appearance
The out-of-limit risk of stable cross section；
Step 5-5, for described out-of-limit risk, use current weather condition to be analyzed, it is judged that circuit dynamic current-carrying capacity or
Whether section power limit can eliminate the out-of-limit risk of corresponding period, if can eliminate out-of-limit, then it represents that this circuit possesses
Dynamic compatibilization condition, provides concrete increase-volume period and can increase-volume amount；Otherwise represent that this circuit still suffers from out-of-limit risk, give
Go out early warning.
Preferably, a kind of power grid regulation system power transmission line dynamic capacity increase system, described system include data processing module,
Module and graph visualization module are analyzed in computing module, increase-volume in real time；
Described data processing module, in power transmission and transformation system, acquisition device gathers data, including device status data and micro-
Meteorological data, described collection data are received, resolve and write into Databasce by power grid regulation system；In units of circuit
The device data received are integrated and identification, the line parameter circuit value after identification is sent in real time described real-time calculating mould
Block；
Described real-time computing module, the data after using identification carry out transmission line dynamic current-carrying capacity calculating in real time；Root
Define according to electrical network section, the section comprising dynamic compatibilization circuit is carried out dynamic power limit calculating, by dynamic for circuit current-carrying
Amount result of calculation is sent to described increase-volume and analyzes module；
Module is analyzed in described increase-volume, for electrical network carried out Static security assessment analysis and to day part circuit increase-volume must
The property wanted and feasibility are predicted, and its result data is sent to described graph visualization display module；
Described graph visualization display module, graphing capability based on basic platform is to Static security assessment analysis result and each
Predicting the outcome of period circuit increase-volume carries out visual presentation；Based on WEB infrastructure service, dynamic compatibilization picture and function are entered
Row is issued, and province's ground dispatching patcher is logged in by the WEB client side in power grid regulation security of system III district checks.
Compared with prior art, the beneficial effects of the present invention is:
The present invention proposes dynamically to increase the general embodiment in regulator control system application, breaks through tradition based on power transmission and transformation system dynamic
State capacity increasing technique limitation in terms of electric network model and mode, carries out increase-volume analysis from the angle of the whole network and safety is commented
Estimate, promote the practicality of dynamic compatibilization.
The present invention takes into full account the regulator control system requirement for power grid security, utilizes the relatedness between circuit multiple device data,
And the continuity between real time data and historical data to gather data integrate and identification, select make current-carrying capacity result become
Calculate in conservative data, it is ensured that power grid security.Electrical network section dynamic power limit is calculated, more in real time
Meet the use habit of regulator control system.
The present invention utilizes the nucleus module increasings dynamic to electrical network such as regulator control system operation plan, Load flow calculation, static security analysis
Hold and be predicted analyzing, it is judged that the Necessity and feasibility of increase-volume, control electrical network for dispatcher and technical support is provided；From
Equipment safety and power grid security two aspect carry out security evaluation to dynamic compatibilization process, it is ensured that the safety of dynamic compatibilization.
Accompanying drawing explanation
Fig. 1 is a kind of power grid regulation system power transmission line dynamic capacity increase system general frame figure that the present invention provides
Fig. 2 is a kind of power grid regulation system power transmission line dynamic capacity increase method flow diagram that the present invention provides
Fig. 3 is the flow chart of the incoming data base of power transmission and transformation system data that the present invention provides
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail.
As it is shown in figure 1, be a kind of power grid regulation system power transmission line dynamic capacity increase system general frame.
Dispatching patcher is totally divided into three safety zones at present.Safe I district is real time control for production scheduling region, mainly runs needs
The functional module monitored in real time, such as data acquisition and monitoring (SCADA) and Automatic Generation Control (AGC) etc.；
Safe II district runs the functional module that real-time is relatively low, as operation plan and dispatcher training simulate (DTS) etc.；
Safe III district is mainly information security district, the operation information management functional module such as system and WEB.Dynamic compatibilization system
It is deployed in the safe II district of regional dispatching system, generally includes data process, in real time calculating, increase-volume analysis and figure visual
Change and show 4 modules.Data are gathered by data interaction interface acquisition device from power transmission and transformation on-line monitoring system, based on
Local service EBI obtains electric network model and real time operation mode data from safe I district, based on remote service EBI
Acquisition generation schedule and Load Forecasting data are dispatched for generating electrical network prediction section from higher level.Each module major function designs
As follows:
The data processing module device status data to being received externally and microclimate data are integrated, and set up data
With the mapping of grid equipment, utilize the incidence relation of same equipment multiple sampled data that data are carried out identification, identify and repair
Lookup error data, improve data accuracy；Gather data from the multiple device of circuit, according to data type to current-carrying capacity
Impact determines that one group of complete calculating data is for calculating.
Computing module calculates the dynamic current-carrying capacity of circuit in real time according to the line parameter circuit value after identification in real time, and result of calculation is follow-up
Section calculation, increase-volume prediction and power grid security assessment provide basic data；Define according to system stability section, to comprising
The stable cross section of dynamic compatibilization circuit carries out the real-time analytical calculation of dynamic power limit, provides data supporting for power grid regulation.
The critical datas such as line current, conductor temperature, section power limit are monitored in real time simultaneously, find heavy duty or get over
Limit provides early warning information in time.
Increase-volume is analyzed module and is included electrical network Static security assessment and increase-volume two parts of prediction.First model and side is obtained from I district
The real-time section of formula data construct electrical network, and the generation schedule and load prediction got is dispatched in superposition from higher level on this basis
Data, generate multi-period electrical network prediction section.Increase-volume is carried out based on the real-time section of electrical network and line energizing flow amount result of calculation
The electrical network static security real-time assessment of journey；Future is carried out based on multi-period electrical network prediction section and the real-time result of calculation of current-carrying capacity
In a period of time electrical network increase-volume analyze, be given electrical network need increase-volume period and correspondence increase-volume circuit and can increase-volume amount.
The calculating real-time to dynamic compatibilization of graph visualization display module graphing capability based on basic platform, the knot of assessment prediction
Fruit carries out visual presentation；Based on WEB infrastructure service, dynamic compatibilization picture and function are issued, save ground and all can pass through
III district WEB client side logs in and checks.For making province ground can carry out dynamic compatibilization coordinated regulation, ground is transferred state and increases
Hold system core calculating data to pass through to deliver in province's key Ore-controlling Role on the data pass-through mode of dispatch data net, for saving key
Control personnel provide reference.
As in figure 2 it is shown, a kind of power grid regulation system power transmission line dynamic capacity increase method, described method specifically comprises the following steps that
Step 1: in units of device, Lead status, microclimate data are exported as data file, sends into ground key Ore-controlling Role,
File is received, resolves and write into Databasce by ground tune；
Step 2: in units of circuit, the device data received are integrated and identification, according to different types of data for
The impact of line energizing flow amount, selects one group of conservation data；
Dynamic compatibilization data access, modeling and identification technique
Equipment state and microclimate gather data and first access power transmission and transformation on-line monitoring system.Data are from power transmission and transformation on-line monitoring
In system periodically with file mode derive and on deliver in regulator control system, be stored in data base after being received parsing.At present
Transmission line of electricity data monitoring device mainly includes conductor temperature monitoring, microclimate monitoring, conducting wire sag monitoring etc..Dynamically increase
The main data types accessed in appearance system is as shown in table 1:
The data type of table 1 access and cycle
The device collection period that power transmission and transformation on-line monitoring system requires is usually 10 minutes, when electrical network generation line fault causes
When trend shifts in a large number, conductor temperature will rise rapidly in the short period, it is impossible to meets power grid regulation requirement of real-time.Will
The collection period of device shortens to 1 minute, and the most corresponding data that adjust forward and the cycle of process.
Dispose background program at power transmission and transformation on-line monitoring system, with within 1 minute, be a cycle from data base by up-to-date device
Gathering data and export to standard E formatted file, filename and file content all comprise data acquisition markers, each device pair
Answer a data record.File is pushed under the assigned catalogue of regulator control system III district WEB server in FTP mode, warp
It is sent under II district dynamic compatibilization server correspondence catalogue by reverse isolation device.Resident literary composition is disposed on dynamic compatibilization server
Part interface routine, detects file, resolves, and writes real-time data base, calls Sampling Interface simultaneously and write data into
Historical data base.Data access flow chart is as shown in Figure 3.
The external data being uniformly accessed into regulator control system is processed and identification, including missing data supplement, wind angle conversion,
Abnormal data corrections etc., specifically include following aspect:
1) when conductor temperature, ambient temperature single metric data disappearance, the characteristic that these data are slowly varying is utilized, with
The moving average of history samples data is supplemented.As a example by conductor temperature, if data x of device data moment nnLack
Lose, from historical data base, take out front 10 sampled values x of these device datan-1～xn-10, calculate its meansigma methodsCollection data as this device moment n.
2) wind angle of device collection is with direct north as base value, need to be converted into and the angle of wire trend.First to line
Line pole tower is modeled, and safeguards the angle (on the basis of direct north) of itself and front and back shaft tower, and attending device and shaft tower
Membership.After receiving wind angle data, calculate wind direction according to Tower Model corresponding to device relative with front and back wire
Angle (is converted into acute angle), finally selects the angle that sine value is less as final wind angle data.
3) in units of circuit, device data are integrated by type.As a example by conductor temperature data type, it is assumed that line
Road i has n device for detecting temperature, then integrate and obtain one group n conductor temperature data.This is organized data, uses meansigma methods
Abnormal data therein is rejected by deviation method.First calculate n data meansigma methods, and set deviate threshold value (as
20%), when certain data deviation average reaches threshold value, these data are rejected from group, reject data every time,
Repeat this step, until group does not has abnormal data, reject k evidence the most altogether.
After data identification processes, every kind of data type has n-k data, carries for wire according to every kind of data type
The contribution of flow, selects to make current-carrying capacity and the most conservative numerical value of equipment state, as the termination of circuit i data identification respectively
Really.Various data type choosing value principles are as shown in table 2:
The value principle of table 2 different pieces of information
Step 3: use the data after identification to carry out transmission line dynamic current-carrying capacity calculating；Define according to electrical network section, to bag
Section containing dynamic compatibilization circuit carries out dynamic power limit calculating；
Circuit dynamic current-carrying capacity and section dynamic power limit computing technique
Processing identification through data, every dynamic compatibilization circuit forms one group of complete calculating and monitoring data.According to wire
It is 70 DEG C of dynamic current-carrying capacities corresponding with when 80 DEG C that thermally-stabilised equilibrium equation calculates conductor allowable temperature respectively.Wherein 70 DEG C right
Answer the line current limit value under electrical network normal running (operation) conditions, for line security monitoring under normal circumstances and dynamically increased
Hold in forecast analysis；Line current limit value under 80 DEG C of then corresponding grid failure states, is used for calculating electrical network section dynamic
N-1 Static security assessment in power allowances and capacity increasing process.
The circuit dynamic current-carrying capacity result calculated according to the data processing method of the present invention is too conservative, takes into full account
The regulator control system requirement for safety.In practical engineering application, regulated and controled personnel to circuit dynamic current-carrying capacity according to the same day
Calculating minimum be controlled.
Section is carried out based on circuit dynamic fault carrying current calculation result (current-carrying capacity that corresponding lead allows temperature to be 80 DEG C)
The dynamic limit of power calculates.If the dynamic fault ampacity on section i-th line road is If,i, i ∈ Sk.Wherein SkFor
The transmission line of electricity set of section k.As this circuit does not possess dynamic compatibilization condition, then If,iDirectly take static failure current limit.
From If,i, i ∈ SkIn take minima If,minAs reference value, by formulaElectric current is converted to
Section power.Wherein UNFor rated voltage (kV)；For power factor；W is section tidal current transfer ratio.
Step 4: build the real-time section of electrical network, based on circuit and section carrying current calculation result, electrical network is carried out static security
Analyze, the power grid security of assessment dynamic compatibilization process；
Dynamic compatibilization power grid security assessment technology
By the calculating of section dynamic power limit, the safety of important section in energy effective monitoring capacity increasing process, but monitoring model
Enclose the non-section circuit that still cannot contain in electrical network.For ensureing the static security of the whole network in capacity increasing process, need increase-volume
The electrical network static security of journey carries out real-time assessment and monitoring.
Estimate that application obtains electric network model from I zone state and real time operation mode builds the real-time analysis section of electrical network, for dynamic
State increase-volume circuit, uses line fault Static Electro ductility limit in the circuit dynamic fault current limit alternate data storehouse of calculating in real time
Value, uses the electrical network static security analysis method of considering security automaton to be analyzed electrical network static security.If no
Circuit or the out-of-limit situation of section occur, shows that now capacity increasing process meets electrical network static security.Dynamic compatibilization electrical network is quiet
The state security evaluation calculating cycle is 1 minute.
Step 5: based on the real-time section of electrical network, adjusts the plan of acquisition and prediction data from saving, when building following a period of time many
Section electrical network prediction section, carries out tidal current analysis, is predicted the Necessity and feasibility of day part circuit increase-volume.
The time scale of dynamic compatibilization is expanded to prediction aspect by real-time aspect, under electrical network normal operation to future
A period of time increase-volume Necessity and feasibility is analyzed, and the operation decision-making for regulation and control personnel proposes guidance.
Within every 15 minutes, it is a cycle, rolls 4 the electrical network prediction sections building following a hour, divide based on Load flow calculation
Analyse line current and the out-of-limit risk of stabilization of power grids section that day part is likely to occur.For these risks, use current weather
Condition (also can be accessed by Weather Forecast Information) is analyzed, it is judged that whether circuit dynamic current-carrying capacity or section power limit can
Enough out-of-limit risks eliminating the corresponding period.
Prediction section uses real-time grid section superposition prediction period generation schedule data, load prediction data, repair schedule
The mode of data builds.Mainly include following step:
1) it is primarily based on local service bus to estimate application obtains electric network model and real time operation mode structure from I zone state
The real-time section of electrical network is as the ground state section of 4 prediction sections.
2) from save adjusting system obtain a few days ago generation schedule, ultra-short term, repair schedule data and resolve write this locality
Real-time database.
3) from plan with prediction data, the data of corresponding prediction period are extracted, according to saving reflecting of ground regulator control system equipment foundation
Penetrate relation, the device data being resolved to is added in ground state section.
Finally should be noted that: above example only in order to illustrate that technical scheme is not intended to limit, although
Being described in detail the present invention with reference to above-described embodiment, those of ordinary skill in the field are it is understood that still
The detailed description of the invention of the present invention can be modified or equivalent, and appointing without departing from spirit and scope of the invention
What amendment or equivalent, it all should be contained in the middle of scope of the presently claimed invention.
Claims (8)
1. a power grid regulation system power transmission line dynamic capacity increase method, it is characterised in that described method includes walking as follows
Rapid:
(1) from power transmission and transformation system, acquisition device gathers data, including device status data and microclimate data, electrical network
Described collection data are received, resolve and write into Databasce by regulator control system；
(2) in units of circuit, the device data received are integrated and identification, according to different types of data for
The impact of line energizing flow amount, selects one group of conservation data；
(3) data after using identification carry out transmission line dynamic current-carrying capacity calculating in real time；Define according to electrical network section,
The section comprising dynamic compatibilization circuit is carried out dynamic power limit calculating；
(4) the real-time section of electrical network is built, based on the real-time section of described electrical network and transmission line dynamic current-carrying capacity result of calculation,
Electrical network is carried out Static security assessment analysis, the power grid security of assessment dynamic compatibilization process；
(5) based on the real-time section of described electrical network, adjust the plan of acquisition and prediction data from saving, build following a period of time
Multi-period electrical network prediction section, carries out tidal current analysis in conjunction with transmission line dynamic current-carrying capacity result of calculation, to day part circuit
The Necessity and feasibility of increase-volume is predicted.
Method the most according to claim 1, it is characterised in that described step (1) comprises the steps:
Step 1-1, Lead status, microclimate are derived from power transmission and transformation system data base standard E formatted data file, institute
Filename and the file content of stating E formatted data file all contain data acquisition markers；Described E formatted data file is led
Going out the cycle is 1 minute；
Step 1-2, by described E formatted file by FTP mode upload to power grid regulation security of system III district WEB take
Under business device assigned catalogue, it is sent to power grid regulation security of system II district dynamic compatibilization server via reverse isolation device corresponding
Under catalogue；
Dispose file interface program on step 1-3, dynamic compatibilization server, described data file detected, resolve,
Data storage service based on regulator control system, calls real-time database interface and analysis result is write real-time data base, call simultaneously
Sampling Interface will resolve data write historical data base.
Method the most according to claim 1, it is characterised in that described step (2) comprises the steps:
Step 2-1, the missing data in described device data is supplemented, when conductor temperature, the single measurement of ambient temperature
During shortage of data, utilize the characteristic that these data are slowly varying, supplement with the moving average of history samples data；
Step 2-2, wind angle data are changed；
Step 2-3, in units of circuit, device data are integrated by type, calculate each type data meansigma methods,
And set deviation threshold value, when certain data deviation average reaches threshold value, these data are rejected from group, every time
Rejecting data, repeat this step, until not having abnormal data in group, i.e. finishing device data identification processes；
Step 2-4, through data identification process after, according to every kind of data type for the contribution of current carrying capacity of conductor, select respectively
Select and make current-carrying capacity and the most conservative numerical value of equipment state, as the final result of track data identification.
Method the most according to claim 3, it is characterised in that described step 2-2 comprises the steps:
Step 2-2-1, overhead line structures are modeled, on the basis of direct north, safeguard the angle of itself and shaft tower front and back,
And the membership of attending device and shaft tower；
Step 2-2-2, receive wind angle data after, calculate wind direction and wire front and back according to Tower Model corresponding to device
Relative angle, is converted into acute angle；
Step 2-2-3, select the less angle of sine value as final wind angle data.
Method the most according to claim 1, it is characterised in that described step 3 comprises the steps:
Step 3-1, use the complete line data after described data identification, calculate respectively according to the thermally-stabilised equilibrium equation of wire
Conductor allowable temperature is 70 DEG C of dynamic current-carrying capacities corresponding with when 80 DEG C, wherein under 70 DEG C of correspondences electrical network normal running (operation) conditions
Line current limit value, under normal circumstances line security monitoring and dynamic compatibilization forecast analysis in；80 DEG C the most right
Answer the line current limit value under grid failure state, be used for calculating in electrical network section dynamic power limit and capacity increasing process
N-1 Static security assessment；
Step 3-2, use circuit dynamic fault carrying current calculation result substitute static failure current limit, by formulaElectric current is converted to section power, in formula, UNFor rated voltage, unit is kV,
For power factor；W is section tidal current transfer ratio, and P is section power, If,minRepresent and take section all circuits dynamic fault
Minima in current-carrying capacity；Described circuit dynamic fault carrying current calculation result is the line electricity under described grid failure state
The result of calculation of restriction value.
Method the most according to claim 1, it is characterised in that described step 4 comprises the steps:
Step 4-1, from the state estimation of the power grid regulation security of system I district senior application of regulator control system is applied, obtain electrical network mould
Type and real-time running data build the real-time section of described electrical network；
Step 4-2, for dynamic compatibilization circuit, use in the circuit dynamic fault current limit alternate data storehouse of calculating in real time
Line fault quiescent current limit value；
Electrical network static security is entered by the electrical network static security analysis method in step 4-3, the employing senior application module of regulator control system
Row is analyzed, if occurring without circuit or the out-of-limit situation of section, then shows that now capacity increasing process meets electrical network static security.
Method the most according to claim 1, it is characterised in that described step 5 comprises the steps:
Step 5-1, from the state estimation of the power grid regulation security of system I district senior application of regulator control system is applied, obtain electrical network mould
Type and real-time running data build the real-time section of electrical network as ground state section；
Step 5-2, obtain generation schedule, ultra-short term, repair schedule data parsing a few days ago and write from saving adjusting system
Enter local real-time database；
Step 5-3, it was a section cycle with n minute, the data of extraction following a period of time from plan and prediction data,
According to saving the mapping relations that ground regulator control system equipment is set up, the device data being resolved to is added in ground state section, forms m
Individual prediction section；
Step 5-4, m the prediction section built is carried out Load flow calculation, analyze line current and the electrical network of day part appearance
The out-of-limit risk of stable cross section；
Step 5-5, for described out-of-limit risk, use current weather condition to be analyzed, it is judged that circuit dynamic current-carrying capacity or
Whether section power limit can eliminate the out-of-limit risk of corresponding period, if can eliminate out-of-limit, then it represents that this circuit possesses
Dynamic compatibilization condition, provides concrete increase-volume period and can increase-volume amount；Otherwise represent that this circuit still suffers from out-of-limit risk, give
Go out early warning.
8. a power grid regulation system power transmission line dynamic capacity increase system, it is characterised in that described system includes at data
Module and graph visualization module are analyzed in reason module, real-time computing module, increase-volume；
Described data processing module, in power transmission and transformation system, acquisition device gathers data, including device status data and micro-
Meteorological data, described collection data are received, resolve and write into Databasce by power grid regulation system；In units of circuit
The device data received are integrated and identification, the line parameter circuit value after identification is sent in real time described real-time calculating mould
Block；
Described real-time computing module, the data after using identification carry out transmission line dynamic current-carrying capacity calculating in real time；Root
Define according to electrical network section, the section comprising dynamic compatibilization circuit is carried out dynamic power limit calculating, by dynamic for circuit current-carrying
Amount result of calculation is sent to described increase-volume and analyzes module；
Module is analyzed in described increase-volume, for electrical network carried out Static security assessment analysis and to day part circuit increase-volume must
The property wanted and feasibility are predicted, and its result data is sent to described graph visualization display module；
Described graph visualization display module, graphing capability based on basic platform is to Static security assessment analysis result and each
Predicting the outcome of period circuit increase-volume carries out visual presentation；Based on WEB infrastructure service, dynamic compatibilization picture and function are entered
Row is issued, and province's ground dispatching patcher is logged in by the WEB client side in power grid regulation security of system III district checks.
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