CN114243918A - Join in marriage net double balance intelligence management and control system - Google Patents
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- H—ELECTRICITY
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- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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Abstract
The invention provides a distribution network double-balance intelligent management and control system which comprises system data, a user acquisition digital-analog, a real-time data acquisition module, a data processing module and a calculation module, wherein the system data is in signal connection with standing account data, the standing account data finishes system data arrangement, the standing account data is connected with a data cleaning module I, the data cleaning module I is connected with a data association module, the user acquisition data is in signal connection with an operation module, the operation module is in signal connection with a data cleaning module II, the data cleaning module II is also in signal connection with the data association module, the real-time data acquisition module is also in signal connection with the data association module, the calculation module sends data to a statistics module for statistics, and the comprehensive processing module is used for optimization processing. According to the invention, by perfecting the ledger of the data and performing the correlation compensation, the station area and the line loss can be reduced by performing the optimization processing by using the comprehensive processing module, the reactive flow of the line can be greatly reduced, the heavy overload rate of the distribution network is reduced, and the method is economical and practical.
Description
Technical Field
The invention belongs to the technical field of power distribution network management, and particularly relates to a distribution network double-balance intelligent management and control system.
Background
The power distribution network is composed of overhead lines, cables, towers, distribution transformers, isolating switches, reactive power compensators, a plurality of accessory facilities and the like, and plays a role in distributing electric energy in the power network. The topology analysis of the power distribution network is to view the whole power distribution network into a line-point combined topological graph according to the connection relation of power distribution electrical elements, then to perform topology connection analysis of the whole network according to power supply nodes, switch nodes and the like, and is the basis of other analysis of the power distribution network such as state estimation, load flow calculation, fault positioning, isolation, power supply recovery, network reconstruction and the like.
The structure of the distribution network is large and complex, and the network structure is often changed due to a fault or opening and closing of a switch in a load transfer operation. As the basis of distribution network analysis, network topology calculation can meet the requirements of different high-level functions in distribution network automation, and can also realize the rapid tracking and identification of distribution network connectivity and adapt to event changes. At present, the existing research at home and abroad has a relational expression matrix representation method, a network base matrix representation method, a node elimination method, a tree search representation method, a discrete processing method and the like.
However, in the process of managing and controlling the power distribution network, the problems of low and high voltage complaints, heavy overload, high line loss, unbalanced three phases of loads and the like exist, fine management of the power distribution network is influenced, and further the production benefit of the power grid is influenced.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a distribution network double-balanced intelligent management and control system to solve the problems in the background art.
In order to solve the technical problems, the invention adopts the technical scheme that: a distribution network double-balance intelligent management and control system comprises system data, a user acquisition digital-analog, a real-time data acquisition module, a data processing module and a calculation module, wherein the system data is connected with standing account data through a system data signal, the system data is arranged through the standing account data, the standing account data signal is connected with a data cleaning module I, the arranged system data is cleaned through the data cleaning module I, and the data cleaning module I is connected with a data association module through a signal;
the user data acquisition signal is connected with an operation module, the operation module is in signal connection with a second data cleaning module, and the second data cleaning module is also in signal connection with the data association module;
the real-time data acquisition module is also in signal connection with the data association module, system data, a user acquisition digital-analog and the real-time data acquisition module are associated through the data association module, and the data association module is in signal connection with the data processing module and the calculation module;
the data processing module processes the associated abnormal data and respectively transmits the associated abnormal data to the standing book data and the operation module;
the calculation module is used for calculating and processing the associated data, the data are sent to the statistics module for statistics, the statistics module is further in signal connection with the comprehensive processing module, and comprehensive optimization processing operation of the data is performed through the comprehensive processing module.
Further, the comprehensive optimization processing of the statistical module is to initialize a filing space and a reference point, initialize individuals, update self-adaptation of the filing space and the reference point, select parent individuals according to the fitness value of each individual in a data population, select two individuals from the parent generation to cross each other each time, obtain candidate filial generations through crossing, put the population and generated filial generations into a candidate pool, perform non-dominated sorting on the individuals in the candidate pool, finally obtain a plurality of phase modulation schemes, and finally select the scheme with the minimum overall equivalent line loss value under the specific phase modulation times on the premise of meeting the maximum allowable station area unbalance degree to complete the optimization calculation processing.
Furthermore, the statistical module is also in signal connection with a query module, and query operation of statistical data in the statistical module is completed through the query module.
Furthermore, the statistical module is also in signal connection with a data display module, and the data statistically processed by the statistical module is displayed through the data display module.
Compared with the prior art, the invention has the following advantages:
according to the invention, by the machine account perfection and the associated compensation of data, the loss of a machine area and a line can be reduced, the reactive flow of the line can be greatly reduced, the heavy overload rate of a distribution network is reduced, after a capacitor of the machine area is put into use, the power factor of the line is obviously improved, and the problem of single-phase overload in winter is solved completely by three-phase load adjustment, the integral average unbalance degree of the machine area is reduced, the number of repair work orders is reduced, the quality of medium and low voltage electric energy is improved, after the reactive balance of the line, the voltage drop of the line is gradual, after the three-phase load of the machine area is adjusted, the original light-load phase voltage of the machine area is reduced by 15.5 volts on average, and the heavy-load phase voltage is increased by 10.2 volts on average; the average fluctuation range of the voltage of the transformer area is narrowed from about 40 volts to about 27 volts, and the voltage qualification rate is improved by about 30 percent. After the operation rate of the platform area leakage protection is improved and three-phase imbalance adjustment is carried out, the zero line current of the platform area is averagely reduced by 71%, and the two-stage leakage protection can be completely put into operation, so that the platform area leakage protection device is economical and practical.
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FIG. 1 is an exploded view of the overall structure of the present invention;
description of reference numerals:
1-system data; 2, collecting a digital model by a user; 3-standing account data; 41-a data cleaning module I; 42-data cleaning module two; 5-a real-time data acquisition module; 6-a data processing module; 7-operating the module; 8-a data association module; 9-a calculation module; 10-a statistical module; 11-a comprehensive processing module; 12-a query module; 13-data presentation module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a technical solution: the utility model provides a join in marriage net double balance intelligence management and control system, includes system data 1, user collection digifax 2, real-time data acquisition module 5, and system data 1 is the platform account data that current system provided, and user collection digifax 2 is the operating data that current system provided, and real-time data acquisition module 5 is the field data, utilizes the data that individual topology analysis appearance gathered back, including the data that on-the-spot platform district topological graph, location, nuclear phase, asset correspond to gather.
The system data processing system comprises a data processing module 6 and a calculating module 9, wherein the system data 1 is in signal connection with the standing book data 3, the system data arrangement is completed through the standing book data 3, the standing book data 2 is in signal connection with a data cleaning module I41, the system data after the arrangement is cleaned through the data cleaning module I41, and the data cleaning module I41 is in signal connection with a data correlation module 8;
the user data acquisition 2 is in signal connection with an operation module 7, the operation module 7 is in signal connection with a second data cleaning module 42, and the second data cleaning module 42 is also in signal connection with a data association module 8;
the real-time data acquisition module 5 is also in signal connection with the data association module 8, the system data 1, the user acquisition digital-analog 2 and the real-time data acquisition module 5 are associated through the data association module 8, and the data association module 8 is in signal connection with the data processing module 6 and the calculation module 9;
the data processing module 6 processes the associated abnormal data and respectively transmits the associated abnormal data to the standing book data 3 and the operation module 7; finishing the system data arrangement again through the standing book data 3, and cleaning the system data after the arrangement through the data cleaning module I41, so that the association is performed again through the data association module 8, and the operation is repeated until all the association of the data is finished;
similarly, the abnormal data transmitted to the operation module 7 through the data processing module 6 is processed again through the operation module 7, and is cleaned again through the second data cleaning module 42, so that association is performed again through the second data association module 8, and the association is repeated until all association of the data is completed.
The calculation module 9 performs calculation processing on the associated data, and sends the calculated data to the statistics module 10 for statistics, the statistics module 10 is further in signal connection with the comprehensive processing module 11, and the comprehensive optimization processing operation of the data is performed through the comprehensive processing module 11.
The comprehensive optimization processing of the comprehensive processing module 11 is to initialize the filing space and the reference point, initialize the individuals, update the files and the self-adaptation of the reference point, select the parent individuals according to the fitness value of each individual in the data population, select two individuals from the parent for crossing each time, obtain candidate filial generations through crossing, put the population and the generated filial generations into a candidate pool, perform non-dominated sorting on the individuals in the candidate pool, finally obtain a plurality of phase modulation schemes, and finally select the scheme with the minimum overall equivalent line loss value under the specific phase modulation times on the premise of meeting the maximum allowable station area unbalance degree, thereby completing the optimization calculation processing.
The method specifically comprises the following steps:
s1, initializing an archiving space A and reference points R, wherein the number of the reference points is not more than the number of the population size on the premise of meeting the requirement of uniform distribution;
s2, initializing individuals, wherein the length of each individual, namely the problem dimension, is the number n of phase modulation units; for each phase modulation unit, there are and only three phase modulation options, denoted 0, -1, 1 respectively, for these three phase modulation operations, each of which can be initialized to:
x＝(x1,...,xi,...,xn),xi∈{0,-1,1}
s3, self-adaptive updating of an archive A and a reference point R, putting the target vector value of each individual into the archive, then performing non-dominated sorting on all vectors in the archive, adjusting the individual and the reference point in the archive, calculating the distance from each point in the archive A to each reference point, and updating the archive;
s4, selecting a parent individual according to the fitness value of each individual in the population;
s5, performing crossover operation, namely selecting two individuals from the parent generation for crossover each time, obtaining 200 candidate filial generations through crossover, evaluating each filial generation, and updating a file and a reference point;
s6, selecting, namely, putting the population and the generated filial generation into a candidate pool, firstly, carrying out non-dominant sequencing on the individuals in the candidate pool, if the space remains in the population, calculating the fitness value of each individual in the k level according to IGD-NS, and then selecting the individual with the maximum fitness value to put into the population. Repeating the operation until the population is full;
s7, judging whether a stopping condition is met, and if so, outputting non-dominant individuals in the population; if not, repeating the steps S4-S6, and finally obtaining a plurality of phase modulation schemes;
and S8, after obtaining a plurality of non-dominated schemes, selecting the scheme with the minimum overall equivalent line loss value under a specific phase modulation frequency to complete optimization on the premise of meeting the maximum allowable station area unbalance degree.
The statistical module 10 is further connected with a query module 12 through a signal, and the query module 12 is used for completing query operation of statistical data in the statistical module 10.
The statistical module 10 is further connected with a data display module 13 through signals, and the data statistically processed by the statistical module 10 are displayed through the data display module 13.
The distribution network double-balance intelligent control system in the embodiment 1 can reduce the loss of the distribution area and the line, the specific line loss rate of the distribution area is reduced to 4.01% from 4.54% before adjustment, and the average reduction range is 11.74%; the reactive flow of the line can be greatly reduced, the maximum reduction amplitude is 51 percent, and the average reduction is 26 percent. The distribution network heavy overload rate is reduced;
and after the platform capacitor is put into use, the power factor of the line is obviously improved, the line with the maximum amplitude is improved from 0.868 to 0.964, the current is reduced from 87.2A to 78.3A, and the reduction amplitude is 10.2%. The average current of 5 lines is reduced by 4.6%. The platform area with the single-phase overload problem in winter is completely solved through three-phase load adjustment, the overload phase load rate is reduced to 65.2% from 128.7%, the integral average unbalance degree of the platform area is reduced to 27.19% from 73.32% before adjustment, and the average reduction range is 62.40%. The number of repair work orders is reduced, and the problem of low voltage at the tail ends of two lines is solved after the lines are subjected to reactive power adjustment in the using process; after the three-phase load is adjusted, the problem that end users of eight distribution areas cannot use electric appliances such as induction cookers in a load peak period is solved. The quality of the medium and low voltage electric energy is improved, the voltage drop of the line is gradually reduced after the line is in reactive balance, and the voltage at the tail end is increased by 0.08-0.12 kilovolt. After the three-phase load of the transformer area is adjusted, the original light-load phase voltage of the transformer area is averagely reduced by 15.5 volts, and the heavy-load phase voltage is averagely increased by 10.2 volts; the average fluctuation range of the voltage of the transformer area is narrowed from about 40 volts to about 27 volts, and the voltage qualification rate is improved by about 30 percent. After the operation rate of the transformer area leakage protection is improved and three-phase imbalance adjustment is carried out, the zero line current of the transformer area is averagely reduced by 71%, and the two-stage leakage protection can be completely put into operation.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a join in marriage net double balance intelligence management and control system which characterized in that: the system comprises system data (1), a user acquisition digital-analog (2), a real-time data acquisition module (5), a data processing module (6) and a calculation module (9), wherein the system data (1) is in signal connection with account data (3), the system data is sorted through the account data (3), the account data (2) is in signal connection with a data cleaning module I (41), the sorted system data is cleaned through the data cleaning module I (41), and the data cleaning module I (41) is in signal connection with a data association module (8);
the user data acquisition module (2) is in signal connection with an operation module (7), the operation module (7) is in signal connection with a second data cleaning module (42), and the second data cleaning module (42) is also in signal connection with the data association module (8);
the real-time data acquisition module (5) is also in signal connection with the data association module (8), the system data (1), the user acquisition digital-analog (2) and the real-time data acquisition module (5) are associated through the data association module (8), and the data association module (8) is in signal connection with the data processing module (6) and the calculation module (9);
the data processing module (6) processes the associated abnormal data and respectively transmits the associated abnormal data to the standing book data (3) and the operation module (7);
the calculation module (9) calculates the associated data, the calculated data are sent to the statistics module (10) for statistics, the statistics of the statistics module (10) is carried out, the statistics module (10) is in signal connection with the comprehensive processing module (11), and the comprehensive processing operation of the data is carried out through the comprehensive processing module (11) to complete the optimization of the data.
2. The distribution network double-balance intelligent management and control system according to claim 1, characterized in that the comprehensive processing module (11) is optimized by initializing an archive space and a reference point, initializing individuals, adaptively updating the archive space and the reference point, selecting parent individuals according to the fitness value of each individual in a data population, selecting two individuals from the parent for crossing each time, obtaining candidate offspring through crossing, putting the population and the generated offspring into a candidate pool, performing non-dominated sorting on the individuals in the candidate pool, finally obtaining a plurality of phase modulation schemes, and finally selecting the scheme with the minimum overall equivalent line loss value under a specific phase modulation frequency to complete optimization processing on the premise of meeting the maximum allowable station area imbalance degree.
3. The distribution network double-balance intelligent management and control system according to claim 2, characterized in that the statistical module (10) is further connected with a query module (12) through a signal, and query operation of statistical data in the statistical module (10) is completed through the query module (12).
4. The distribution network double-balance intelligent management and control system according to claim 2, characterized in that the statistical module (10) is further connected with a data display module (13) through a signal, and data statistically processed by the statistical module (10) is displayed through the data display module (13).
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