CN203151227U - Line loss professional comprehensive management system - Google Patents
Line loss professional comprehensive management system Download PDFInfo
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- CN203151227U CN203151227U CN 201320151648 CN201320151648U CN203151227U CN 203151227 U CN203151227 U CN 203151227U CN 201320151648 CN201320151648 CN 201320151648 CN 201320151648 U CN201320151648 U CN 201320151648U CN 203151227 U CN203151227 U CN 203151227U
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Abstract
The utility model relates to a line loss professional comprehensive management system, which is characterized that integration is carried out through the line loss relative data dispersed in each automation system, a uniform line loss database is established, and information solitary island of line loss can be eliminated. The line loss is calculated through on-line data reading, so that afterwards statistics and calculation for the previous line loss calculation is changed to on-line statistics and calculation, and real-time line loss analysis can be enhanced. The calculation of line loss condition of an electric power bureau can be carried out from an overall perspective, so that line loss calculation and analysis cover each voltage grade of the electrical network, and the comprehensiveness and integrity of the line loss calculation can be guaranteed. An on-line calculating mode is employed for changing the condition that a typical day is used for calculating analysis, line loss analysis is not changed by following the change of season and external environment, the calculating result is more accurate and real, the conditions of single and rough analysis for the line loss result can be changed, the work cost is reduced, and the work efficiency is increased.
Description
Technical field
The utility model relates to electric power system, is specifically related to a kind of line loss lean total management system.
Background technology
Electrical network electric energy loss (abbreviation line loss) is important integrated technology economic index of electric power enterprise, has also reflected planning and designing, production technology and the operation management level of electrical network.The electric energy loss that power network produces when transmission of electric energy directly influences service efficiency and the economic benefit of electric power.Along with the in-depth day by day of power system reform, whether operation of power networks is economical, and whether the management of power supply and power utilization technological means science etc., and these all relate to the operation cost of power grid enterprises and the whole economic efficiency of the whole society.Therefore, reducing line loss is the vital task of power department aspect energy savings, control line loss, the line loss that reduces, with scientific management methods irrational electric energy loss is reduced to minimum, making line loss rate reach advanced level is one of core content of power grid enterprises' modern management, also is the necessary condition of the survival and development of power grid enterprises.
But during calculating, the line loss of existing electric company has following shortcoming:
(1). the line loss related data is to be scattered in each automated system, has " information island " phenomenon.
(2). line loss is calculated as after each system statistics arrangement again and transfers data, therefore is statistical computation afterwards, can not accomplish to carry out in real time online statistics, calculating.
(3). line loss is calculated can not cover each electric pressure of electrical network, can't guarantee the comprehensive and integrality that line loss is calculated.
(4). can only adopt the typical case day to carry out computational analysis.
(5). comparatively single, rough to the line loss interpretation of result.
(6). data gather for manually gathering job costs height, inefficiency.
Summary of the invention
The utility model provides a kind of line loss lean total management system of in real time electric weight and line loss being inquired about, add up, analyze, being contrasted in order to overcome the deficiency of above technology.
The technical scheme that its technical problem that overcomes the utility model adopts is:
This line loss lean total management system, comprise each transformer in the electrical network that stores that is connected to adapter, lead, load, capacitor, reactor switch, bus, the table meter, the platform district, the generated energy acquisition system of the electric power system data of low-voltage customer, load control system and marketing mis system, described generated energy acquisition system, load control system, and the marketing mis system is connected in ESB ESB after the adaptor interface conversion, line loss lean total management system server and database are connected in ESB ESB, and described line loss lean total management system server utilizes data read and processing procedure from the generated energy acquisition system by ESB ESB, read all kinds of electric power system datas and calculate line loss in load control system and the marketing mis system.
In order to realize that result of calculation can also comprise client computer, the report server that is connected in ESB ESB and the printer that is connected in client computer by report printing.
The beneficial effects of the utility model are: the line loss related data that will be scattered in each automated system is carried out integrated, has set up unified line loss database, eliminates line loss " information island ".The online data that read are carried out line loss calculating, line loss is in the past calculated changed into " online statistics, calculating " by " add up, calculate " afterwards, have strengthened the real-time of line loss analyzing.From the angle of the overall situation power administration's line loss situation is calculated, made line loss calculate, analyze and cover each electric pressure of electrical network, guaranteed the comprehensive and integrality that line loss is calculated.Adopted online computation schema, changed the situation that in the past can only adopt the typical case day to carry out computational analysis, line loss analyzing no longer changes with the variation of season and external environment condition, result of calculation is more accurate, true, changed in the past only to the line loss interpretation of result comparatively single, rough situation, reduce job costs, improved operating efficiency.
Description of drawings
Fig. 1 is system configuration connection diagram of the present utility model.
Embodiment
Be described further below in conjunction with 1 pair of the utility model of accompanying drawing.
As shown in Figure 1, this line loss lean total management system, comprise each transformer in the electrical network that stores that is connected to adapter, lead, load, capacitor, reactor switch, bus, the table meter, the platform district, the generated energy acquisition system of the electric power system data of low-voltage customer, load control system and marketing mis system, described generated energy acquisition system, load control system, and the marketing mis system is connected in ESB ESB after the adaptor interface conversion, line loss lean total management system server and database are connected in ESB ESB, and described line loss lean total management system server utilizes data read and processing procedure from the generated energy acquisition system by ESB ESB, read all kinds of electric power system datas and calculate line loss in load control system and the marketing mis system.Generated energy acquisition system, load control system and marketing mis system store all kinds of electric power system datas of each transformer in the electrical network, lead, load, capacitor, reactor switch, bus, table meter, platform district, low-voltage customer, line loss lean total management system reads and handles by the data of ESB ESB, calculate line loss information, and store in the database.
Also comprise client computer, the report server that is connected in ESB ESB and the printer that is connected in client computer.The line loss information that line loss lean total management system is calculated can be transferred to and realize report form processing in the report server, utilizes the printer that is connected in client computer can be with report printing afterwards.
Line loss lean total management system server utilizes data read and processing procedure to read all kinds of electric power system datas from generated energy acquisition system loading control system and marketing mis system by ESB ESB.Line loss lean total management system reads all kinds of power automatic system data, and data are carried out integrated management, and application service is provided.In data read process, system provides perfect daily record recording and tracking analytic function, provides visual, controlled and configurable instrument that each link that reads is carried out complete monitoring.System provides advanced, reliable means to guarantee integrality, the consistency of image data.Taking several data to clean strategy identifies, checks and reject data.Data read and processing procedure are by various faults identification and abnormality processing means, and guaranteeing can be because of cause influence system operate as normal such as network failure, data source systems problem, misdatas.The data pick-up method of taking simultaneously to optimize avoids influencing the stable operation of data source systems, thereby has improved the reliability of system.Data read and processing procedure comprise: data pick-up, data cleansing, data transaction and remedy typing wherein data read and processing procedure comprise that data pick-up, data cleansing, data transaction and data remedy the typing four-stage.
(1). data pick-up:
For the system that supports IEC 61970/IEC 61968 series standards, data can be by the interface API Calls, based on the WebService of CIM model, read based on XML or the E language file transmission means of CIM model.The application programming interfaces API that line loss lean total management system is called based on IEC61970 reads data, and the service that relates to mainly comprises public service (CS), conventional data access services (GDA), high-speed data access services (HSDA), time series data access services (TSDA) and general purpose event subscription service (GES).The WebService that the line loss management system is called based on CIM reads data, and data format is CIM RDF XML.Line loss lean total management system is by obtaining file based on the procotol of TCP/IP, reading data.For the system that does not support IEC 61970/IEC 61968 series standards, data pick-up can read by modes such as WebService, intermediate database, files.The difference of variety of way mainly is that the storage mode of data is different with transmission means, and its content is basic identical.Content is all unified name with reference to IEC 61970 CIM and " State Grid Corporation of China's power consumer power information acquisition system standardized designs " relevant criterion, thereby realizes unified data-interface standard.
(2). data cleansing:
The task of data cleansing is to filter undesirable data, namely data is carried out the reasonability verification, comprises integrality, accuracy and consistency.Incomplete data characteristics is some due information of disappearance, and these class data are filtered the back completion and write database.The reason that misdata produces has form not to, data repetition, bad data etc.Find misdata and select by setting up some business rules, generate warning information and daily record record, store database after the correction again into.
Each analog quantity can arrange its zone of reasonableness, when the engineering value of analog quantity in the reasonable scope the time, thinks that then this value is effective.In case and the engineering value of analog quantity exceeds zone of reasonableness, it is invalid then to be considered to this value, is unreasonable with the quality mark of this analog quantity, and generates warning information.To all put on quality mark mirror from the data of each data source.Except conventional indication, also comprise manually insert sign, the sign that transfinites, bad data sign, invalid data sign etc.Identification, check and rejecting to abnormal data and misdata are the important contents of data cleansing, and the quality of data cleansing directly influences the accuracy of data, and influence the correctness of result of calculation.System carries out data check based on the multiple business rule.Cleaning policy components can upgrade and expand by configuration management, thereby adapts to new demand.
(3). data transaction
The task of data transaction mainly comprise inconsistent data conversion, data granularity conversion and based on the calculating of business rule.The conversion of inconsistent data is the process of an integration, and the data of the same type of different business systems are unified for example Bian Ma unification.The conversion of data granularity comprises the granularity of time granularity and other unit.The data of the general store high-density of automated system, line loss management system are carried out the polymerization of certain particle size as requested to data.The calculating of business rule is carried out the calculating of some statistics and data target according to the needs of business, uses for analyzing.Data transaction is supported self-defining data format conversion, the granularity setting of different pieces of information and the definition of business rule, and autgmentability is preferably arranged.
(4). data are remedied typing
Undesirable data in the data cleaning process or incomplete data are remedied typing, calculate automatically and remedy data.The user can should remedy the data of typing by the quick location of methods such as warning information and quality tab, thereby improves efficiency of inputting.To the data of manual entry and revision, system carries out the daily record record automatically and files.Needs are remedied the data of typing, support modes such as the typing of the WEB page, the importing of Excel file to carry out typing.Through data pick-up, cleaning, change and remedy typing, the line loss management system realizes that data read automatically, upgrade automatically, replenish automatically and read, thereby realizes the unification of data.When electrical network increased new factory station or circuit, system safeguarded the electric network composition data automatically and handles accordingly, for example generates statistical relationship automatically, does not need manual maintenance, effectively reduces the manual maintenance cost, has improved the practicality of system.
The line loss analyzing module that line loss lean total management system server is provided with theory wire loss computing module for theory of computation line loss, is used for the statistics line loss computing module of counting statistics line loss, the line loss result is analyzed, according to line loss is calculated and statistics is optimized electrical network decision-making supplementary module.
The theory wire loss computing module can calculate power transmission network theory wire loss, 6-10Kv power distribution network theory wire loss, low pressure 400V Calculating Network Theoretical Line Loss.
The power transmission network theory wire loss adopts the inferior calculating power system load flow of newton-pressgang of extensive use in the present electric power system in line computation.This algorithm good reliability, adaptability is strong, has the second order convergence property, and the iterations that each calculating needs is few.Can be applicable to different network configurations and the different pieces of information that collects.As shown in Figure 2, the inferior method of newton-pressgang (or claim Newton method) is to separate the effective method of Nonlinear System of Equations.Its key problem is the foundation of update equation formula and finds the solution, according to the constraint of node injecting power, list the update equation formula of electric power networks automatically to the constraint of node voltage size with to the constraints at relative phase angle, utilize the Newton method iteration theorem to carry out iterative computation then.Basic principle is that a certain initial point in a certain adjacent city of separating sets out, single order partial derivative---Jacobian matrix along this point, take a step forward towards the direction that reduces the equation residual error, calculating the residual sum Jacobian matrix again on new point moves on, repeat this process and reach convergence up to residual error, namely obtained the solution of Nonlinear System of Equations.Because the closer to solution, the direction of partial derivative is more accurate, and convergence rate is also just more fast, so Newton method has the second order convergence property.The required calculated data of the inferior calculating power system load flow of newton-pressgang is as shown in Table 1:
Table one
6-10Kv power distribution network theory wire loss can ask resistance method, capacity to ask the resistance method to calculate by distribution power flow exact algorithm, electric weight
Push back power flow algorithm before the distribution power flow exact algorithm claims again, be find the solution radial distribution networks network trend the most accurately, effective method, its desired data is as shown in Table 2.But should be noted that simultaneously this algorithm has relatively high expectations to the integrity degree of basic data, accurate, full and accurate device parameter and operational factor need be provided, the scope of application of algorithm is had certain restriction.
This method has taken full advantage of distribution network and has had the feature in unique path from given bus to source node, along this unique supply path correction voltage and current (or power stream), in the process that pushes back, calculate injection electric current or the power stream of each load bus, from frontier node, by the read group total to branch current or power stream, obtain electric current or the power stream at each bar branch road top, revise node voltage simultaneously, utilize the source node voltage of having set to calculate each branch voltage as boundary condition to fall and terminal voltage preceding pushing through to calculate in the journey, revise branch current or power stream simultaneously, push away and push back two steps before so constantly repeating, until convergence.The convergence property of this method is not subjected to the influence of power distribution network high resistance and reactance ratio, so this method has higher accuracy.
Coulometry claims " electric weight is asked the resistance method " again, and namely the power consumption data computation goes out the substitutional resistance of distribution line, goes out line current by the bus nodes data computation that collects, and finally calculates the loss situation of circuit, and its desired data as shown in Table 3.Its essence is that the conveying load that respectively calculates line segment thinks by seen electric weight distribution in direct ratio by copying of the transformer of this line segment power supply, considered during calculating that transformer is copied and seen that electric weight is to the influence of calculated value.Therefore, coulometry no matter on the circuit load factor of each station power distribution transformer be identical or inequality, its result of calculation is all comparatively accurate.
Coulometry is owing to arithmetic accuracy height, result of calculation are accurate, and desired data is also collected easily, particularly after automatization level improves
Desired data substantially can be by the automated system collection, so use comparatively extensive at present.
Volumetric method claims " capacity is asked the resistance method " again, namely divides equally the substitutional resistance that the head end voltameter is calculated distribution line with transformer capacity in the circuit, goes out line current by the bus nodes data computation that collects, and finally calculates the loss situation of circuit.Its essence is that the conveying load that respectively calculates line segment thinks by by the capacity distribution in direct ratio of the transformer of this line segment power supply, only considered the influence of transformer rated capacity to calculated value during calculating, therefore, this algorithm is when the load factor of each station power distribution transformer is identical or basic identical on the line, and its result of calculation and coulometry are identical substantially.Otherwise, the load factor of each station power distribution transformer is inequality or when larger difference is arranged (" low load with strong power " or " high load with small power " situation, this situation often occur in practice), its result of calculation is compared with coulometry and will be had certain error on the line, difference is more big, and error is more big.
Though the arithmetic accuracy of volumetric method and result precision and coulometry have certain gap, this algorithm desired data is less, convenient and swift, still has practicality for the incomplete area of data acquisition or circuit.
| Type | Bus | Transformer | Lead | Capacitor |
| Basic data | 1) transformer station's title; 2) line name; 3) bus title | 1) title; 2) rated voltage; 3) capacity; 4) short circuit loss; 5) short-circuit voltage; 6) no-load loss; 7) no-load current; 8) stoichiometric point (metering of high-pressure side metering/low-pressure side) | 1) model; 2) length | 1) rated voltage; 2) rated capacity; 3) dielectric loss angle tangent |
| Service data | 1) working voltage; 2) power-on time; 3) k-factor; 4) meritorious electric weight; 5) capacity of idle power; 6) power factor; | 1) electricity sales amount; 2) idle time; 3) transformer working voltage; 4) active power; 5) reactive power; | NULL | 1) capacity that puts into operation |
Table two
Table three
Low pressure 400V Calculating Network Theoretical Line Loss can be divided into three-phase imbalance algorithm, iterative method, substitutional resistance method.
The three-phase imbalance algorithm is by analysis user place phase, begins the three-phase loss of every section lead is carried out independently calculating and considered zero phase loss from end according to user's electricity sales amount information of actual measurement, and its desired data as shown in Table 4.This algorithm has considered that three-phase imbalance and voltage land to the influence of line loss, so its computational accuracy is higher, the result is accurate.But comparing with iterative method with the substitutional resistance method needs basic data more strict, and more application is complete in data at present, the platform district that the automation collection degree is higher.
Iterative method is divided into two kinds of electric weight iterative method and capacity iterative methods, and it is based on the improvement algorithm that postpones before the branch current for method, needs input user's the data such as seeing electric weight of copying, as shown in Table 5.This algorithm has considered that the landing of line system and voltage to the influence of line loss, has improved the accuracy of result of calculation on the theoretical foundation that preceding postpones for method, can calculate in the circuit data such as pressure drop on the every lead, electric current simultaneously.The electric weight iterative method needs platform district user electricity sales amount, and the capacity iterative rules does not need platform district user electricity sales amount information, and tries to achieve approximate user's electricity sales amount by node users number or node number average Fen Tai district amount of power supply respectively.This algorithm desired data is easy to gather, and computational accuracy is higher, uses comparatively extensively (particularly electric weight iterative method) at present.
The substitutional resistance method can be divided into two kinds of coulometry and volumetric methods again.It is the algorithms most in use of the low domain tyeory line loss of presenting a theatrical performance as the last item on a programme of previous calculation, this algorithm and 6-10kV coulometry, volumetric method are close, the circuit substitutional resistance value that utilization calculates combines with the head end average current, obtains the Molded Line loss rate in the low district of presenting a theatrical performance as the last item on a programme, and its desired data as shown in Table 6.Owing to do not consider the not collinear phenomenon processed that exists in the influence of three-phase imbalance, the low district of presenting a theatrical performance as the last item on a programme and hang down the influence of district's pressure drop to line loss of presenting a theatrical performance as the last item on a programme, only become outlet electric network composition parameter according to platform and multiply by coefficient N, its computational accuracy exists obvious deficiency than three-phase imbalance algorithm and iterative method, uses less at present.
| Type | The platform district | Lead | The table meter | Low-voltage customer |
| Basic data | 1) the platform realm name claims; 2) platform district numbering; | 1) wire type; 2) conductor length; 3) entrance line model; 4) entrance line length; 5) wire type; | 1) table meter type | 1) user's name; 2) Customs Assigned Number; 3) user place phase; |
| Service data | 1) platform district head end voltage; 2) power-on time; 3) k-factor; 4) the meritorious electric weight in platform district; 5) platform district capacity of idle power; 6) head end power factor; | NULL | NULL | 1) user copies and sees electric weight; |
Table four
| Type | The platform district | Lead | The table meter | Low-voltage customer |
| Basic data | 1) the platform realm name claims; 2) platform district numbering; | 1) branch line model; 2) prop up line length; 3) entrance line model; 4) entrance line length; 5) wire type; | 1) table meter type | 1) user's name; 2) Customs Assigned Number; |
| Service data | 1) platform district head end voltage; 2) power-on time; 3) k-factor; 4) the meritorious electric weight in platform district; 5) platform district capacity of idle power; 6) head end power factor; | NULL | NULL | 1) user copies and sees electric weight |
Table five
Table six
(1) statistics line loss computing module is to calculate and administrative standard according to power industry, by realizing seamless link with the power automatic system data integration, extract relevant electric quantity data, realize classification, dividing potential drop, separated time, the line loss statistical computation in Fen Tai district and the application module of other management.Provide data review, on year-on-year basis, multiple analysis modes such as chain rate, figure, support calculating, issue, multiple form mode such as unusual.Flexible alarm formula is supported multiple settings such as single condition, combination condition, complicated formulas, satisfies line loss four separate service requirements.Statistics line loss computing module makes things convenient for the user to search, edit main distribution net equipment information quickly based on the tree-like displaying of master, distribution of Ajax technology.Adopt the mouse drag-and-drop operation of ExtJs technology, allow statistical relationship that easy operating more is set.Based on the chart Dynamic Display of FusionCharts, embody the variation tendency of data message more intuitively.Employing is based on the messenger service of JMS, and asynchronous system sends or receive message, realizes data-interface, the asynchronous execution of multithreading of calculating interface task, and the user can monitor the task implementation status in real time.System can carry out layering line loss counting statistics automatically according to the layering statistical relationship that configures.System can carry out dividing potential drop line loss counting statistics automatically according to the dividing potential drop statistical relationship that configures.
The electric pressure scope of statistics is the full voltage grade, according to data read cycle to different electric pressures carry out at times, Pinggu, peak and the whole month statistics.System can carry out the line loss counting statistics of branch circuit automatically according to the separated time statistical relationship that configures.Circuit comprises: power transmission network feeder line and 6-10kV distribution line.System can carry out the line loss counting statistics in all low districts of presenting a theatrical performance as the last item on a programme automatically according to the low district's statistical relationship of presenting a theatrical performance as the last item on a programme that configures.System can carry out the counting statistics of bus unbalance factor automatically according to the bus statistical relationship that configures.Handle as follows for bus sectional lized situation: sectionalized bus is added up unbalance factor separately; The unified statistics of sectionalized bus unbalance factor.System can carry out the line loss rate statistics of transformer automatically according to the main transformer statistical relationship that configures.
The line loss analyzing module has comprised line loss comparative analysis, line loss trend analysis, comprehensive electrical energy consumption analysis and several parts of fluction analysis, it is based on theory wire loss result of calculation and statistical computation result, from result contrast, as a result trend, heavily decrease multi-angles such as circuit, transformer loss line loss result of calculation analyzed.The user can in time determine the reason that line loss changes by the application of line loss analyzing module, accurately grasps each electrical network, every circuit under situations such as different power loads and equipment switching, causes rule and characteristics that line loss changes; To actual line loss condition with higher, find managerial problem targetedly, and the weak link of electric network composition layout and irrational place; And formulate targetedly and fall the damage plan, take to fall the damage measure, make the line loss rate of electrical network drop to zone of reasonableness, improve economic benefit and the social benefit of power supply enterprise.
Line loss comparative analysis function is based on that theory wire loss calculates and the statistics line loss is calculated and carried out, and by comparative analysis, intuitively represents the data exception point in the electrical network, makes the analytical work of line loss more convenient.
Comparative analysis is based upon actual line loss primary system meter and the theory wire loss value is calculated on the basis, can carry out analytical calculation to power transmission network, distribution line and the low district of presenting a theatrical performance as the last item on a programme.
The comparative analysis computing formula is as follows:
Line loss reduced value=actual line loss value-theory wire loss value
Calculate by comparative analysis, obtain the line loss reduced value.For reduced value less circuit or platform district, actual line loss value and theory wire loss value are comparatively approaching, and the line loss management work is finished better; For reduced value bigger circuit or platform district, illustrate that the management line loss is excessive, can analyze reason targetedly, draw the scheme that reduces actual line loss value.
When differentiating the abnormal conditions of comparing result, criterion is self-defined mode, can manually increase.To comparing result unusual circuit or platform district, can carry out the figure location, and the machine account information that can directly check equipment.The condition that the abnormal conditions of comparing result are differentiated comprises:
1) line loss reduced value 〉=self-defining value;
2) line loss reduced value≤self-defining value.
Comparative analysis flow process between actual value and the theoretical value as shown in Figure 3.
The line loss trend analysis is by to the actual line loss result of calculation of the same annual different times of electrical network comparison (chain rate analysis), and the actual line loss result of calculation contrast of different annual contemporaneities (analysis on year-on-year basis) obtains the variation tendency of the actual line loss of electrical network different times.Its analysis process as shown in Figure 4.
Analyzing on year-on-year basis is that the actual line loss result of calculation of the different annual contemporaneities of electrical network is compared, and obtains the variation tendency of line loss value and the abnormal conditions of analysis result are differentiated.
The line loss rate in period of line loss rate=statistics line loss rate in period-on year-on-year basis on year-on-year basis
The abnormal conditions criterion is: line loss rate 〉=set point on year-on-year basis, set point can be self-defined.
The chain rate analysis is that the line loss result of calculation to the same annual different times of electrical network compares, and obtains the variation tendency of line loss rate, and the abnormal conditions that wherein occur are carried out discriminant analysis.
Chain rate line loss rate=statistics line loss rate in period-chain rate line loss rate in period
The abnormal conditions criterion is: chain rate line loss rate 〉=set point, set point can be self-defined.
Anti-electricity-theft work is the important step in the line loss management work, different clients not only has different stealing modes in the real work, and the loss that the probability of stealing, stealing cause is different, and wherein stealing probability height, big the supervisory of client of stealing electric weight are emphasis.Special line client's table meter is installed generally comparatively complete, and special line client's information about power can be copied or load management system is obtained by collection, can accomplish some every days 24.The outlet electric weight of supply side can obtain by generated energy acquisition system and other acquisition systems, at least every days 24 point.Like this, the special line client can accomplish that actual line loss hourly accurately compares.Can have reliably user's stealing situation by actual line loss and to judge.Low-voltage customer is based on the platform district manages, some users are arranged below the platform district, the method for taking the first General Logistics Department to divide by power consumption and the line loss in computer board district, inquires the unusual situation of line loss.Data analyses such as each user's of recycling capacity, electric weight, line loss are above the platform district progressively navigates to concrete user.Seek out doubtful stealing user.For the work of opposing electricity-stealing provides reference.
The decision-making supplementary module is on the basis of theory wire loss calculating accurately and comprehensively line loss statistical computation, holds by the integral body to the grid loss distribution situation, for the line loss administrative staff provide electric grid investment planning support, fall and decrease income analysis and the support of opposing electricity-stealing.
The idle work optimization analytic function mainly comprises power transmission network idle work optimization and GA for reactive power optimization.Power transmission network idle work optimization analytical system is on the basis of electrical network practical operation situation (current trend distributes as transformer gear, condenser capacity, group number and system), according to constraints and the target function of user's appointment, calculate at the optimization that the operation of power networks phase carries out.The analysis of distribution idle work optimization is by existing power distribution network topological structure is carried out rational computational analysis, thereby draws the reactive power compensation scheme to distribution line.What the power transmission network idle work optimization calculated employing is the inferior method of newton-pressgang.Calculate the best that system can draw transformer optimum operation gear under the current load condition and reactive-load compensation equipment capacity that puts into operation by the power transmission network idle work optimization.
The distribution idle work optimization mainly is that the 10kV distribution line is optimized, and can provide conductive suggestion to distribution line construction, planning, transformation by this module application.
Transformer station's economic operation analysis is by the calculating of the maximum apparent power of all transformers of transformer station in statistical time range and transformer capacity, calculate transformer bay load factor difference in the load factor of transformer station and the same transformer station, judge the load balance whether between the main transformer of transformer station from the size of load factor and difference, whether economical operation of transformer station, thus the economical operation curve provided.The user carries out transformer station's economic operation analysis intuitively by the economical operation curve.
The three-phase imbalance analysis is based on that the three-phase imbalance algorithm carries out, and according to the load distribution situation, calculates electric current and the Zero-phase current of each phase, and the best that calculates each user according to certain optimization principles inserts phase then.Calculate the best on-position that this optimizational function can be used for Adding User.By expectation access point and the expectation amount of power supply that setting Adds User, system can calculate the best access phase of this user according to setting, has reached three-phase equilibrium.This function can realize the three-phase equilibrium optimization of 400V circuit, in the time of to the backbone balance optimizing, can be optimized each branch road.
The power supply position optimization is developed at 400V platform district, whether power supply position, 400V platform district rationally badly influences the line loss of 400V circuit, therefore the reasonability of determining the supply transformer installation site is very important, Given this, system provides the best power supply position optimization analytic function of best 400V circuit, can calculate the optimum position of supply transformer according to the load distribution situation in the circuit.
The transformer economic operation analysis is based on theory wire loss calculating to be carried out, and should carry out the theory wire loss computational analysis to electrical network earlier before the computational analysis, calculates the loss of transformer in the circuit.According to the replacing condition of transformer, the definite transformer that will change calculates again to the electrical network behind the replacing transformer, draws analysis result.Change transformer two kinds of patterns are arranged, a kind of is to change moving irrational transformer in the same line road, the situation that as far as possible reduces investment again reaches the optimization purpose, and another kind is to replace original transformer with the transformer of new model, to reach the optimization purpose.The running status of transformer is bigger to the influence of line loss value, by choosing optimum operating mode and adjusting load, makes the load factor of transformer reach a reasonable value, and transformer efficiency is the highest under this running status, and loss is minimum.For single transformer, when the copper core loss value was identical, this transformer reached optimal operational condition.The transformer running state analysis is based on theory wire loss and calculates and to carry out, and should carry out the theory wire loss computational analysis to electrical network earlier before the computational analysis, calculates load factor and the copper iron loss of transformer in the electrical network, lists the irrational transformer of load factor.According to the change condition of transformer running status, the operation of the definite change transformer running status that will carry out is calculated again to the electrical network after the change of transformer running status, draws analysis result.
The Conductor's Economic operating analysis is based on the line of reasoning line loss and calculates and to carry out, and calculates the parameters such as amount of power supply, electricity sales amount, line loss rate of lead the electrical network from theory wire loss, by analyzing, some high circuits that decrease is transformed, and reaches the purpose of economical operation.The Conductor's Economic operating analysis can be cut to change with radius of electricity supply and be optimized analog computation, the analog computation of adjustment sectional area of wire, auxiliary calculating single-phase transformer installation site and circuit model optimization analog computation circuit.
Adjust the sectional area of wire analysis and be based on theory wire loss and calculate and carry out, earlier electrical network is carried out the theory wire loss computational analysis before the computational analysis, calculate the theory wire loss value of lead in the electrical network, and list and heavily decrease circuit.According to the replacing condition of lead, the definite lead that will change calculates again to the electrical network behind the restringing, draws analysis result.
Claims (2)
1. line loss lean total management system, it is characterized in that: comprise each transformer in the electrical network that stores that is connected to adapter, lead, load, capacitor, reactor switch, bus, the table meter, the platform district, the generated energy acquisition system of the electric power system data of low-voltage customer, load control system and marketing mis system, described generated energy acquisition system, load control system, and the marketing mis system is connected in ESB ESB after the adaptor interface conversion, line loss lean total management system server and database are connected in ESB ESB, and described line loss lean total management system server utilizes data read and processing procedure from the generated energy acquisition system by ESB ESB, read all kinds of electric power system datas and calculate line loss in load control system and the marketing mis system.
2. line loss lean total management system according to claim 1 is characterized in that: also comprise client computer, the report server that is connected in ESB ESB and the printer that is connected in client computer.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103177341A (en) * | 2013-03-29 | 2013-06-26 | 山东电力集团公司 | Line loss lean comprehensive management system and method |
| CN103995162A (en) * | 2014-05-26 | 2014-08-20 | 华北电力大学（保定） | Power distribution network large user real-time electricity larceny prevention method based on advanced measuring system |
| CN104467193A (en) * | 2014-12-29 | 2015-03-25 | 国家电网公司 | Four-division line loss quasi real-time on-line monitoring scheme based on daily frequentness monitoring |
| CN105321008A (en) * | 2014-06-17 | 2016-02-10 | 国网山西省电力公司电力科学研究院 | Distributed low voltage transformer district line loss calculation and analysis system |
| CN107505537A (en) * | 2017-09-04 | 2017-12-22 | 贵州电网有限责任公司电力科学研究院 | A kind of failure analysis methods abnormal based on line loss |
| CN109613329A (en) * | 2018-12-25 | 2019-04-12 | 国网湖南省电力有限公司 | A kind of fine line loss analysis system |
| CN109633327A (en) * | 2018-12-25 | 2019-04-16 | 国网湖南省电力有限公司 | A kind of area's intelligence line loss analytical equipment |
| CN109633328A (en) * | 2018-12-25 | 2019-04-16 | 国网湖南省电力有限公司 | A kind of fixed line loss monitoring and analyzing system |
| CN109633326A (en) * | 2018-12-25 | 2019-04-16 | 国网湖南省电力有限公司 | A kind of detachable line loss analysis system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103177341A (en) * | 2013-03-29 | 2013-06-26 | 山东电力集团公司 | Line loss lean comprehensive management system and method |
| CN103995162A (en) * | 2014-05-26 | 2014-08-20 | 华北电力大学（保定） | Power distribution network large user real-time electricity larceny prevention method based on advanced measuring system |
| CN105321008A (en) * | 2014-06-17 | 2016-02-10 | 国网山西省电力公司电力科学研究院 | Distributed low voltage transformer district line loss calculation and analysis system |
| CN104467193A (en) * | 2014-12-29 | 2015-03-25 | 国家电网公司 | Four-division line loss quasi real-time on-line monitoring scheme based on daily frequentness monitoring |
| CN107505537A (en) * | 2017-09-04 | 2017-12-22 | 贵州电网有限责任公司电力科学研究院 | A kind of failure analysis methods abnormal based on line loss |
| CN109633327A (en) * | 2018-12-25 | 2019-04-16 | 国网湖南省电力有限公司 | A kind of area's intelligence line loss analytical equipment |
| CN109613329A (en) * | 2018-12-25 | 2019-04-12 | 国网湖南省电力有限公司 | A kind of fine line loss analysis system |
| CN109633328A (en) * | 2018-12-25 | 2019-04-16 | 国网湖南省电力有限公司 | A kind of fixed line loss monitoring and analyzing system |
| CN109633326A (en) * | 2018-12-25 | 2019-04-16 | 国网湖南省电力有限公司 | A kind of detachable line loss analysis system |
| CN109613329B (en) * | 2018-12-25 | 2021-09-17 | 国网湖南省电力有限公司 | Fine line loss analysis system |
| CN109633327B (en) * | 2018-12-25 | 2021-09-21 | 国网湖南省电力有限公司 | Intelligent line loss analysis device for transformer area |
| CN111047189A (en) * | 2019-12-12 | 2020-04-21 | 云南电网有限责任公司丽江供电局 | Loss reduction comprehensive application system and analysis method based on cloud power intelligent cloud platform |
| CN111047189B (en) * | 2019-12-12 | 2023-08-01 | 云南电网有限责任公司丽江供电局 | Loss reduction comprehensive application system and analysis method based on cloud electricity intelligent cloud platform |
| CN111579928A (en) * | 2020-05-25 | 2020-08-25 | 国网江苏省电力有限公司无锡供电分公司 | Distribution line loss analysis method and analysis device |
| CN111579928B (en) * | 2020-05-25 | 2022-03-15 | 国网江苏省电力有限公司无锡供电分公司 | Distribution line loss analysis method and analysis device |
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