CN104638642A - Active power distribution network analysis and evaluation system - Google Patents

Abstract

The invention relates to an active distribution network analysis and evaluation system, which is characterized in that it includes a data acquisition module, a data maintenance module, a data verification and repair module, a power grid evaluation module and an evaluation result output module, and the data acquisition module has Network data is collected and transmitted to the data maintenance module. The data maintenance module maintains and updates the received data and then transmits it to the data verification and repair module. The data verification and repair module performs data table and topology data on the received data. And after electrical calibration and repair, it is transmitted to the power grid evaluation module; the power grid evaluation module evaluates the indicators in the basic power grid, new power load and distributed power respectively, and the three evaluation results obtained are weighted The comprehensive evaluation value of the power grid; the three evaluation results and the comprehensive evaluation value are all transmitted to the evaluation result output module, and the evaluation result output module outputs the received results in the form of text and data tables.

Description

An Analysis and Evaluation System for Active Distribution Network

technical field

The invention relates to a distribution network evaluation system, in particular to an active distribution network analysis and evaluation system.

Background technique

With the implementation of the national low-carbon economic development strategy, photovoltaic power generation, wind power and other distributed new energy power generation are developing rapidly, requiring the distribution network to improve its adaptability in terms of network structure construction, active power and reactive power adjustment; electric vehicles and energy storage devices The development of emerging loads such as loads will also put forward new requirements for the adaptability and development of the distribution network. The improvement of these capabilities lies in the fast, correct and reliable distribution network analysis and evaluation. Most of the active distribution network analysis and evaluation work in the existing technology relies on the general electronic form tool. By issuing standard data tables, manual analysis and sorting of each branch Conduct comparative analysis and evaluation of the data reported by institutions. This working method has the following defects: ① It cannot meet the analysis and evaluation of key issues such as distributed power supply and electric vehicle load access; ② It cannot make a reasonable evaluation of distribution network investment, so as to expand the support capacity of the distribution network field; ③ Unreasonable data cannot be effectively eliminated through basic data verification and rationality analysis, and professional and technical personnel need to carry out tedious data sorting, summary and chart output work, which further hinders the improvement of the quality of distribution network analysis and evaluation work; ④ distribution network The standardization and data quality of the evaluation data cannot be improved, and the reliability of the evaluation results is poor; ⑤The work efficiency and quality are low, the human dependence on professional and technical personnel is strong, and the evaluation stability and repeatability are poor.

Therefore, in order to adapt to the distribution network model under the new situation, an active distribution network analysis and evaluation support model is needed, in addition to the conventional business of solidifying distribution network power supply capacity and grid structure, to realize distributed power access and electric vehicle power supply. , Distribution network investment rationality evaluation and other current hot issues analysis and evaluation work.

Contents of the invention

In view of the above problems, the purpose of the present invention is to provide an active distribution network analysis and evaluation system capable of analyzing and evaluating new power loads and distributed power sources, so as to improve the support capacity and safety and stability of the power grid.

In order to achieve the above object, the present invention adopts the following technical solutions: an active distribution network analysis and evaluation system, characterized in that it includes a data acquisition module, a data maintenance module, a data verification and repair module, a power grid evaluation module and evaluation results An output module, the data collection module collects the distribution network data, and transmits the collected data to the data maintenance module through manual entry and large-scale automatic data import, and the data maintenance module After the data is maintained and updated, it is transmitted to the data verification and repair module, and the data verification and repair module performs data table verification and repair, topology data verification and repair, and electrical verification and repair on the received data. Repair; the verified and repaired data is transmitted to the grid evaluation module, which includes a basic grid evaluation module, a new type of power load evaluation module, and a distributed power source evaluation module, and the basic grid evaluation module has a significant impact on the basic grid The new electricity load evaluation module evaluates the new electricity load from the four aspects of demand side response, differential electricity price, interactive load and intelligence. The distributed power evaluation module evaluates the new energy utilization and new Distributed power generation is evaluated in two aspects of energy operation, and the evaluation results of the basic power grid evaluation module, the new power load evaluation module and the distributed power generation evaluation module are weighted and averaged to obtain a comprehensive evaluation value of the active distribution network in a certain area; The evaluation results of the basic grid evaluation module, the evaluation results of the new power load evaluation module, the evaluation results of the distributed power generation evaluation module, and the comprehensive evaluation value of the active distribution network in a certain area are all transmitted to the evaluation result output module. The evaluation result output module outputs the received results in the form of text and data table.

The distribution network data collected by the data acquisition module includes distribution network equipment data, power supply equipment data and distribution network operation data. The distribution network equipment data specifically includes three-volume main transformers, two-volume main transformers, branch boxes, substations, Substation outlets, switches, switching stations, busbars, box-type stations, line sections, and distribution transformers; power equipment data specifically include energy storage, photovoltaics, power plants, generators, micro-gas turbines, and wind power; distribution network operation data specifically Includes typical and maximum sunrise line loads.

The data verification and repair module includes a data table verification and repair module, a topology data verification and repair module, and an electrical verification and repair module; Check and repair; when checking and repairing the data between tables, the data table checking and repair module first checks whether the data between each data table is reasonable and the logical relationship between the data, and then checks the existing Locate the link of the problem and repair it automatically or manually; when checking whether the data between each data table is reasonable, it includes checking whether the line model, distribution transformer model and equipment location information are reasonable and valid; checking the data in the table When checking and repairing, the data table checking and repairing module first checks whether the data in the table is reasonable and effective, and then locates the links with problems and automatically or manually repairs; whether the data in the checking table is reasonable and effective In this case, it includes verifying the status of equipment, repeated records of attribute values, and data formats; the topology data verification and repair module first verifies the connection relationship of each component in the power grid, and then locates the problematic links and automatically or Manual repair; when verifying the connection relationship of various components in the power grid, it includes analyzing whether it is live, determining feeder lines and trunk branches, finding high-voltage electromagnetic rings, finding medium-voltage U-rings, and finding self-loops of medium and low-voltage lines; analyzing whether they are live It is used to determine whether the components in the power grid are connected to the power supply or the balance node; to determine the feeder and trunk branch to automatically determine the "trunk or not" attribute of the line section, and the trunk and branch modified by the user cannot be modified by the topology; to find high-voltage electromagnetic The loop is used to find the full loop of the high-voltage electromagnetic loop in the grid under the condition of considering the operating state of the grid. The electromagnetic loop spans at least two high-voltage voltage levels and is powered by two power sources or the closed full loop formed by the same power supply to different substations; Find medium-voltage U-ring is used to find the U-ring in the current medium-voltage distribution network. Considering the operation status of the power grid, find the path in the U-shaped ring that does not cross the transformer in the medium-voltage power grid; The ring is used to find the ring formed by the self-connection of the lines belonging to the same feeder in the current power grid; the electrical verification and repair module first finds whether there is a balance node in the power grid and whether there are unreasonable parameters in the components, and then checks the links with problems Positioning and automatic or manual repair.

The basic grid evaluation module evaluates the indicators in the basic grid, and the specific process is: (1) setting the basic grid evaluation indicators; the basic grid evaluation indicators include four categories: technical equipment, power supply security, power supply quality, and economic efficiency; technical equipment The indicators include three categories: primary equipment configuration level, distribution automation, and information support; among them, the primary equipment configuration level includes substation reactive power configuration ratio, distribution transformer reactive power configuration ratio, main transformer operating years, line operating years, switch operating years, Distribution transformer operating life, main transformer standardization level, line standardization level, distribution transformer standardization level, medium-voltage overhead line insulation rate, medium-voltage line cable rate, switch oil-free rate, high-loss distribution transformer ratio, amorphous alloy distribution Transformer ratio, average installation capacity of medium voltage lines, overrun rate of installation capacity of medium voltage lines; power distribution automation includes distribution transformer terminal coverage, feeder automation coverage, optical fiber coverage, distribution automation master station operation rate, distribution automation Electric terminal monthly online rate, remote control usage rate, remote control success rate, remote signaling action correct rate, feeder automation correct action rate; information support includes PMS and GIS data consistency rate, information system availability rate, information system function coverage rate, GIS system Update the timely rate, coverage rate of power consumption information collection system and online monitoring coverage rate; power supply safety indicators include the N-1 pass rate of the main transformer, the N-1 pass rate of the high-voltage line, the N-1 pass rate of the medium-voltage line, the single-line rate of the substation, Substation single variable rate, substation single line single variable rate, average number of segments of medium voltage overhead lines, medium voltage line contact rate and medium voltage line inter-station contact rate; power supply quality indicators include customer average power outage time, planned power outage ratio, user failure power outage Average time, average time of user planned outage, comprehensive voltage pass rate, average line power supply radius, line power supply radius overrun rate and three-phase voltage unbalance rate; economical and efficient indicators include capacity-load ratio, main transformer heavy-load ratio, main transformer light Load ratio, main transformer average load ratio, distribution transformer heavy load ratio, distribution transformer light load ratio, high voltage line heavy load ratio, high voltage line light load ratio, high voltage line average load ratio, line heavy load ratio, line light load ratio, comprehensive Line loss rate, high loss ratio in station area, substation expansion margin, outgoing line interval margin, substation inter-station load balance degree and outgoing line load balance degree; (2) combined with the set basic grid evaluation index, the basic grid evaluation module is The data verification and repair module verifies and repairs the data to process, calculates the result value of each index, and provides data support for the power grid evaluation; (3) the basic power grid evaluation module performs various basic power grid evaluation indicators In-depth analysis, combined with the result values of various indicators, calculate the scores of each indicator; (4) use the AHP method to carry out weighted average of the scores of each indicator obtained in step (3), and obtain the basic The comprehensive evaluation value of the grid evaluation index.

The new power consumption load evaluation module evaluates the new power consumption load from four aspects of demand side response, differential electricity price, interactive load and intelligentization. The specific process is as follows: (1) setting the new power consumption load evaluation index; Electric load evaluation indicators include four types of indicators: demand-side response capability, differential electricity price, interactive load, and intelligence; demand-side response capability indicators include the proportion of users participating in demand-side response and the proportion of loads participating in demand-side response; differential electricity price indicators include users who implement ladder electricity prices Ratio, proportion of electricity consumption implemented by ladder electricity price, user proportion implemented by seasonal electricity price, electricity consumption proportion implemented by seasonal electricity price, user proportion implemented by high reliability electricity price, electricity consumption proportion implemented by high reliability electricity price, proportion of direct purchase electricity by large users, and electricity consumption ratio Energy storage power consumption ratio; interactive load indicators include controllable load ratio, step-down and load reduction ratio, periodic control load ratio, interruptible load ratio, DC load ratio, combined cooling, heating and power supply ratio, and electric vehicle battery load ratio; Intelligent indicators include the coverage rate of smart meters, the proportion of users who realize energy efficiency management, the proportion of loads that realize energy efficiency management, and the proportion of smart homes that participate in grid interaction; The module processes the data verified and repaired by the data verification and repair module, calculates the result values of each index, and provides data support for power grid evaluation; Conduct an in-depth analysis of the electricity load indicators, and calculate the scores of each indicator combined with the result values of each indicator; (4) use the AHP method to carry out weighted average of the scores of each indicator obtained in step (3), and obtain the active load of a certain area The comprehensive evaluation value of the new power load evaluation index in the distribution network.

The distributed power evaluation module evaluates distributed power from two aspects of new energy utilization and new energy operation. The specific process is: (1) setting distributed power evaluation indicators; distributed power evaluation indicators include new energy utilization and new energy. Two types of indicators for energy operation; new energy utilization indicators include the penetration rate of clean energy, the acceptance capacity of distributed power sources, the capacity density of electric vehicle charging and swapping facilities, the proportion of energy storage capacity, the proportion of distributed power generation for self-use, and the proportion of distributed power generation unified purchase and sales; New energy operation indicators include distributed power data upload rate, distributed power remote control rate, distributed power fiber optic communication coverage, export side power quality qualification rate, distributed photovoltaic power average operating efficiency and distributed wind power average operating efficiency; ( 2) Combined with the set distributed power evaluation indicators, the distributed power evaluation module processes the data verified and repaired by the data verification and repair module, calculates the result values of each index, and provides data for power grid evaluation Support; (3) the distributed power evaluation module conducts in-depth analysis of each distributed power evaluation index, and calculates the score of each index in conjunction with the result value of each index; (4) adopts the AHP method to step (3) ) to obtain the weighted average of the scores of each index, and obtain the comprehensive evaluation value of the distributed power evaluation index in the active distribution network in a certain area.

Because the present invention adopts the above technical scheme, it has the following advantages: 1. Since the present invention is provided with a data acquisition module, a data maintenance module, a data verification and repair module, a power grid evaluation module and an evaluation result output module, the power grid evaluation module includes a basic power grid The evaluation module, the new power load evaluation module and the distributed power evaluation module, the data acquisition module collects the data of the distribution network and transmits it to the data maintenance module, and the data maintenance module maintains and updates the received data and then transmits it to the data calibration module. The data verification and repair module performs data table, topology data, and electrical verification and repair on the received data and then transmits it to the power grid evaluation module; The indicators in the evaluation are evaluated separately, and the three evaluation results obtained are weighted and averaged to obtain the comprehensive evaluation value of the active distribution network in a certain area; the three evaluation results and the comprehensive evaluation value are all transmitted to the evaluation result output module, and the evaluation result output module will The received results are output in the form of text and data tables; therefore, the present invention can meet the analysis and evaluation of new power load problems such as distributed power supply and electric vehicle load access. 2. Since the present invention is equipped with a basic grid evaluation module, it can evaluate and analyze distribution network structure, power supply capacity and utilization efficiency. 3. The present invention intelligently collects distribution network data by setting a data acquisition module, intelligently checks and repairs data by setting a data maintenance module and a data verification and repair module, and realizes the analysis and evaluation of multiple key issues, so The invention can reduce the technical dependence of personnel, and the evaluation result has high reliability, so that the work efficiency and work quality of distribution network evaluation can be improved. Based on the above advantages, the present invention can be widely used in the analysis and evaluation of the active distribution network.

Description of drawings

Fig. 1 is a schematic diagram of the functional structure of the active distribution network analysis and evaluation system of the present invention

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in FIG. 1 , the active distribution network analysis and evaluation system of the present invention includes a data acquisition module 1 , a data maintenance module 2 , a data verification and repair module 3 , a grid evaluation module 4 and an evaluation result output module 5 . The data acquisition module 1 collects the data of the distribution network, and transmits the collected data to the data maintenance module 2 through manual input and large-scale automatic data import, and the data maintenance module 2 maintains and updates the received data Afterwards, it is transmitted to the data verification and repair module 3, and the data verification and repair module 3 performs data table verification and repair, topology data verification and repair, and electrical verification and repair on the received data. The verified and repaired data are transmitted to the power grid evaluation module 4 , wherein the power grid evaluation module 4 includes a basic power grid evaluation module 41 , a new power load evaluation module 42 and a distributed power generation evaluation module 43 . The basic grid evaluation module 41 evaluates the indicators in the basic grid. The new power load evaluation module 42 evaluates the new power load from four aspects: demand side response, differential electricity price, interactive load and intelligence. The distributed power evaluation module 43 Evaluate distributed power from two aspects of new energy utilization and new energy operation. The evaluation results of the basic power grid evaluation module 41, the new power load evaluation module 42 and the distributed power evaluation module 43 are weighted and averaged, and the active power distribution in a certain area is obtained. The comprehensive evaluation value of the grid. The evaluation results of the basic grid evaluation module 41, the evaluation results of the new power load evaluation module 42, the evaluation results of the distributed power generation evaluation module 43, and the comprehensive evaluation value of the active distribution network in a certain area are all transmitted to the evaluation result output module 5, and the evaluation The result output module 5 outputs the received results in the form of text and data table.

The distribution network data collected by the data collection module 1 includes distribution network equipment data, power supply equipment data and distribution network operation data. Distribution network equipment data specifically include three-volume main transformers, two-volume main transformers, branch boxes, substations, substation outgoing lines, switches, switching stations, busbars, box-type stations, line sections and distribution transformers and other equipment attribute information; power equipment The data specifically includes equipment attribute information such as energy storage, photovoltaics, power plants, generators, micro-gas turbines, and wind power; the distribution network operation data specifically includes typical sunrise line loads and maximum sunrise line loads.

The data maintenance module 2 maintains the data collected by the data acquisition module 1 to prevent data loss due to misoperation; when the data acquisition module 1 collects data multiple times, the data maintenance module 2 replaces the existing same data to ensure the integrity of the current stored data. Timeliness.

The data verification and repair module 3 includes a data table verification and repair module 31 , a topology data verification and repair module 32 and an electrical verification and repair module 33 .

The data table verification and restoration module 31 verifies and repairs both inter-table data and intra-table data. When checking and repairing the data between tables, the data table checking and repairing module 31 first checks whether the data between each data table is reasonable and the logical relationship between the data, and then locates the links with problems and automatically Or manual repair; when checking whether the data between each data table is reasonable, it includes checking whether the line model, distribution transformer model and equipment location information are reasonable and effective. When verifying and repairing the data in the table, the data table verifying and repairing module 31 first checks whether the data in the table is reasonable and effective, and then locates the links with problems and repairs them automatically or manually; When the data is reasonable and valid, it includes verification of equipment status, duplicate records of attribute values, data format, etc.

The topology data verification and repair module 32 first verifies the connection relationship of each component in the power grid, and then locates the problematic link and repairs it automatically or manually. When verifying the connection relationship of each component in the power grid, it includes analyzing whether it is live, determining the feeder and main branch, searching for high-voltage electromagnetic loops, searching for medium-voltage U-rings, and searching for self-loops of medium- and low-voltage lines. Among them, the analysis of liveness is used to determine whether the components in the grid are connected to the power supply or the balance node; the determination of feeder lines and trunk branches is used to automatically determine the "trunk or not" attribute of the line section, and the trunk and branches modified by the user can no longer be used. Topology modification; search for high-voltage electromagnetic rings is used to find the full ring of high-voltage electromagnetic rings in the power grid under the condition of considering the operation status of the power grid. The closed full loop; find the medium voltage U-ring is used to find the U-ring in the current medium-voltage distribution network, considering the operation status of the power grid, find the U-shaped ring path in the medium-voltage power grid that does not cross the transformer ;Search for medium and low-voltage line self-loops is used to find the loops formed by the self-connection of lines belonging to the same feeder in the current power grid.

The electrical verification and repair module 33 first checks whether there are balance nodes in the power grid and whether there are unreasonable parameters in the components, and then locates the link with the problem and repairs it automatically or manually.

The basic grid evaluation module 41 evaluates the indicators in the basic grid, and the specific process is as follows:

(1) Set up basic grid evaluation indicators;

The basic power grid evaluation indicators include four categories: technical equipment, power supply security, power supply quality and economic efficiency.

Technical equipment indicators include primary equipment configuration level, power distribution automation, and information support. Among them, the primary equipment configuration level includes substation reactive power configuration ratio, distribution transformer reactive power configuration ratio, main transformer operating life, line operating life, switch operating life, distribution transformer operating life, main transformer standardization level, line standardization level, distribution transformer standardization Level, medium voltage overhead line insulation rate, medium voltage line cable rate, switch oil-free rate, high loss distribution ratio, amorphous alloy distribution ratio, medium voltage line average installation capacity, medium voltage line installation Capacity overrun rate; distribution automation includes distribution transformer terminal coverage, feeder automation coverage, optical fiber coverage, distribution automation master station operation rate, distribution terminal monthly online rate, remote control usage rate, remote control success rate, remote signaling action Correct rate, correct action rate of feeder automation; information support includes PMS (Production Management System, production management system) and GIS (Geographic Information System, geographic information system) data consistency rate, information system availability rate, information system function coverage, GIS System update timeliness and electricity consumption information collection system coverage and online monitoring coverage.

Power supply safety indicators include main transformer N-1 pass rate, high-voltage line N-1 pass rate, medium-voltage line N-1 pass rate, substation single line rate, substation single change rate, substation single line single change rate, medium voltage overhead line average score The number of sections, the connection rate of medium voltage lines and the connection rate between stations of medium voltage lines.

Power supply quality indicators include customer average power outage time, planned power outage ratio, user failure average time, user planned power outage average time, comprehensive voltage pass rate, line average power supply radius, line power supply radius overrun rate and three-phase voltage unbalance rate.

Economic and efficient indicators include capacity-load ratio, heavy-load ratio of main transformer, light-load ratio of main transformer, average load ratio of main transformer, heavy-load ratio of distribution transformer, light-load ratio of distribution transformer, heavy-load ratio of high-voltage line, light-load ratio of high-voltage line, Average load rate of high voltage lines, heavy load ratio of lines, light load ratio of lines, comprehensive line loss rate, high loss ratio of station area, substation expansion margin, outgoing line interval margin, load balance between substations and outgoing line load balance.

(2) Combined with the set basic power grid evaluation indicators, the basic power grid evaluation module 41 processes the data verified and repaired by the data verification and repair module 3, calculates the result values of each index, and provides data support for power grid evaluation.

(3) The basic grid evaluation module 41 conducts an in-depth analysis of each basic grid evaluation index, and calculates the score of each index in combination with the result values of each index.

(4) Use the AHP (Analytic Hierarchy Process, Analytic Hierarchy Process) method to carry out weighted average of the scores of each index obtained in step (3), and obtain the comprehensive evaluation value of the basic grid evaluation index in the active distribution network in a certain area.

The new power consumption load evaluation module 42 evaluates the new power consumption load from four aspects: demand response, differential electricity price, interactive load and intelligentization. The specific process is as follows:

(1) Set new evaluation indicators for electricity load;

The new electricity load evaluation indicators include four types of indicators: demand-side response capability, differential electricity price, interactive load, and intelligence.

Demand side response capability indicators include demand side response participation user proportion and demand side response participation load proportion.

Differential electricity price indicators include the proportion of users implementing ladder electricity prices, the proportion of electricity consumption implementing ladder electricity prices, the proportion of users implementing seasonal electricity prices, the proportion of electricity consumption implementing seasonal electricity prices, the proportion of users implementing high-reliability electricity prices, the proportion of electricity consumption implementing high-reliability electricity prices, The proportion of large users' direct purchase of electricity and the proportion of electricity consumption of electric energy storage.

Interactive load indicators include controllable load ratio, step-down load ratio, periodic control load ratio, interruptible load ratio, DC load ratio, combined cooling, heating and power ratio, and electric vehicle battery load ratio.

Intelligent indicators include the coverage rate of smart meters, the proportion of users who realize energy efficiency management, the proportion of loads that realize energy efficiency management, and the proportion of smart homes that participate in grid interaction.

(2) Combined with the set new-type power load index, the new-type power load evaluation module 42 processes the data after verification and repair by the data verification and repair module 3, calculates the result value of each index, and provides data for power grid evaluation support.

(3) The new electricity load evaluation module 42 conducts in-depth analysis on various new electricity load indicators, and calculates the scores of each indicator in combination with the result values of each indicator.

(4) The AHP method is used to weight and average the scores of each index obtained in step (3) to obtain the comprehensive evaluation value of the new type of power load evaluation index in the active distribution network in a certain area.

The distributed power supply evaluation module 43 evaluates the distributed power supply from two aspects of new energy utilization and new energy operation, and the specific process is as follows:

(1) Setting evaluation indicators for distributed power generation;

Distributed power generation evaluation indicators include two types of indicators: new energy utilization and new energy operation.

New energy utilization indicators include the penetration rate of clean energy, the acceptance capacity of distributed power sources, the capacity density of electric vehicle charging and swapping facilities, the proportion of energy storage capacity, the proportion of distributed power generation for self-use, and the proportion of distributed power generation unified purchase and sales.

New energy operation indicators include distributed power data upload rate, distributed power remote control rate, distributed power fiber optic communication coverage, export side power quality qualification rate, average operating efficiency of distributed photovoltaic power and distributed wind power average operating efficiency.

(2) Combined with the set distributed power evaluation indicators, the distributed power evaluation module 43 processes the data verified and repaired by the data verification and repair module 3, calculates the result values of each index, and provides data support for power grid evaluation .

(3) The distributed power supply evaluation module 43 conducts in-depth analysis on various distributed power supply evaluation indicators, and calculates the scores of each indicator in combination with the result values of each indicator.

(4) The AHP method is used to weight and average the scores of each index obtained in step (3) to obtain the comprehensive evaluation value of the distributed power evaluation index in the active distribution network in a certain area.

In addition, the system of the present invention also includes auxiliary functions, which specifically include login management functions and theme map display functions.

The above-mentioned embodiments are only used to illustrate the present invention, wherein the structure, connection mode and method steps of each component can be changed to some extent, and any equivalent transformation and improvement carried out on the basis of the technical solution of the present invention should not be used. excluded from the protection scope of the present invention.

Claims (6)

1. an active distribution network A+E system, it is characterized in that: it comprises data acquisition module, data maintenance module, data verification and correction module, electrical network evaluation module and assessment result output module, described data acquisition module gathers power distribution network data, and by the data collected, manually typing and automaticdata in enormous quantities import two kinds of modes and transfer to described data maintenance module, described data maintenance module is safeguarded the data received and is transferred to described data verification and correction module after upgrading, described data verification and correction module is carried out tables of data verification to the data received and is repaired, topological data verification is with reparation and electrically verify and repair, verification and the transfer of data after repairing are to described electrical network evaluation module, described electrical network evaluation module comprises basic electrical network evaluation module, Novel electric load evaluation module and distributed power source evaluation module, described basic electrical network evaluation module is assessed the index in basic electrical network, described Novel electric load evaluation module is from Demand Side Response, difference electricity price, interactive load and intelligent four aspects are assessed Novel electric load, described distributed power source evaluation module runs two aspects from utilization of new energy resources and new forms of energy and assesses distributed power source, described basic electrical network evaluation module, the assessment result of Novel electric load evaluation module and distributed power source evaluation module is weighted on average, obtain the comprehensive assessment value of somewhere active distribution network, the comprehensive assessment value of the assessment result of described basic electrical network evaluation module, the assessment result of Novel electric load evaluation module, the assessment result of distributed power source evaluation module and somewhere active distribution network all transfers to described assessment result output module, and the result received exports with the form of text and tables of data by described assessment result output module.

2. a kind of active distribution network A+E system as claimed in claim 1, it is characterized in that: the power distribution network data of described data collecting module collected comprise Distribution Network Equipment data, power-supply device data and power distribution network operation data, Distribution Network Equipment data specifically comprise three volume main transformers, two volume main transformers, feeder pillar, transformer station, transformer station's outlet, switch, Switching Station, bus, box station, circuit line segment and distribution transformer; Power-supply device data specifically comprise energy storage, photovoltaic, power plant, generator, miniature combustion engine and wind-powered electricity generation; Power distribution network operation data specifically comprises typical sunrise specific electric load and maximum sunrise specific electric load.

3. a kind of active distribution network A+E system as claimed in claim 1, is characterized in that: described data verification and correction module comprises tables of data verification and verifies with reparation module, topological data and repair module and electrically verify and reparation module;

Between described tables of data verification and reparation module his-and-hers watches, data and Biao Nei data are all carried out verifying and repair; Between his-and-hers watches, data are carried out verifying with when repairing, described tables of data verification and repair the logical relation of module first between and data whether reasonable to data between each tables of data and verify, then position and automatic or manual reparation in-problem link; To when between each tables of data, whether data rationally verify, whether rationally, effectively it comprise checking circuit model, distribution transforming model and device location information; In his-and-hers watches, data are carried out verifying with when repairing, and whether described tables of data verification rationally, effectively verifies with data in the first his-and-hers watches of reparation module, then positions and automatic or manual reparation in-problem link; When in checklist, whether data are reasonable, effective, it comprises calibration equipment state, property value repeats record and data format;

Described topological data verification first verifies the annexation of element each in electrical network with reparation module, then positions and automatic or manual reparation in-problem link; When the annexation of element each in electrical network is verified, it comprise analysis whether charged, determine feeder line and trunk branch, search high-tension electricity magnet ring, search middle pressure U ring and search mid & low-voltage line from ring; Whether chargedly for determining whether the element in electrical network is connected with power supply or balance node analyze; Determine that feeder line and trunk branch are for automatically determining " whether trunk " attribute of circuit line segment, the trunk that user revises voluntarily and branch then cannot again by topological modification; When searching high-tension electricity magnet ring for considering operation of power networks state, search electrical network mesohigh electromagnetism ring loopful, this electromagnetism ring, at least across two high tension voltage grades, supplies loopful closed formed by different substation by two Power supplies or same power supply; Searching pressure U ring for searching the U ring in current medium voltage distribution network, when considering operation of power networks state, searching in medium voltage network not across the path of the U-shaped ring-type of transformer; Search mid & low-voltage line and certainly get in touch with for searching in current electric grid the circuit belonging to same feeder line the ring formed from ring;

Described electric verification first searches in electrical network whether have in balance node and element whether have unreasonable parameter with reparation module, then positions and automatic or manual reparation in-problem link.

4. a kind of active distribution network A+E system as described in claim 1 or 2 or 3, is characterized in that: described basic electrical network evaluation module is assessed the index in basic electrical network, and its detailed process is:

(1) basic electrical network evaluation index is set;

Basis electrical network evaluation index comprises technical equipment, power supply safety, power supply quality and economical and efficient four class;

Technical equipment index comprises primary equipment configuration level, power distribution automation, information-based support three classes; Wherein, primary equipment configuration level comprises the idle allocation ratio of transformer station, distribution transforming is idle allocation ratio, main transformer run the time limit, circuit runs the time limit, switch runs the time limit, distribution transforming runs the time limit, main transformer standardization, line standard level, distribution transforming standardization, middle pressure overhead transmission line insulation rate, medium-voltage line cable rate, switch non-oil ultra high vacuum system rate, highly damage distribution transforming ratio, non-crystaline amorphous metal distribution transforming accounting, the average attaching capacity of medium-voltage line, medium-voltage line attaching capacity transfinite rate; Power distribution automation comprise distribution transformer terminals coverage rate, feeder automation coverage rate, optical fiber coverage rate, power distribution automation main website operation ratio, the distribution terminal moon online rate, remote control utilization rate, successful rate of remote control, remote signalling action accuracy, feeder automation performance factor; Information-based support package upgrades promptness rate and power information acquisition system coverage rate and on-line monitoring coverage rate containing PMS and GIS data concordance rate, information system availability factor, Information System Function coverage rate, generalized information system;

Power supply safety index comprises main transformer N-1 percent of pass, high-tension line N-1 percent of pass, medium-voltage line N-1 percent of pass, transformer station's single line rate, the monotropic rate of transformer station, the monotropic rate of transformer station's single line, middle pressure overhead transmission line average mark hop count, contact rate between medium-voltage line contact rate and medium-voltage line station;

Power supply quality index comprises the average interruption duration of user, scheduled outage ratio, user malfunction have a power failure average time, user's scheduled outage average time, integrated voltage qualification rate, the average radius of electricity supply of circuit, line powering radius transfinite rate and imbalance of three-phase voltage rate;

Economical and efficient index comprises load balancing degrees and outlet load balancing degrees between capacity-load ratio, main transformer heavy duty ratio, main transformer underloading ratio, main transformer Rate of average load, distribution transforming heavy duty ratio, distribution transforming underloading ratio, high-tension line heavy duty ratio, high-tension line underloading ratio, high-tension line Rate of average load, circuit heavy duty ratio, circuit underloading ratio, comprehensive line loss rate, platform district high damage ratio, transformer station's dilatation nargin, outgoing line interval nargin, Substation Station;

(2) combine arrange basic electrical network evaluation index, described basic electrical network evaluation module verify described data verification and correction module, repair after data process, calculate the end value of each index, for electrical network assess data supporting is provided;

(3) described basic electrical network evaluation module carries out depth analysis to every basic electrical network evaluation index, in conjunction with the end value of indices, calculates the score value of each index;

(4) adopt the score value of AHP method to each index that step (3) obtains to be weighted on average, obtain the comprehensive assessment value of basic electrical network evaluation index in the active distribution network of somewhere.

5. a kind of active distribution network A+E system as described in claim 1 or 2 or 3, it is characterized in that: described Novel electric load evaluation module is assessed from Demand Side Response, difference electricity price, interactive load and intelligent four aspects Novel electric load, and its detailed process is:

(1) Novel electric load evaluation index is set;

Novel electric load evaluation index comprises Demand Side Response ability, difference electricity price, interactive load, intelligent four class indexs;

Demand Side Response capacity index comprises Demand Side Response participating user ratio and Demand Side Response participates in load proportion;

Difference electricity price index comprises step price implementation user ratio, step price carries out power consumption ratio, seasonal electricity price carries out user's ratio, seasonal electricity price carries out power consumption ratio, high reliability electricity price carries out user's ratio, high reliability electricity price implementation power consumption ratio, Direct Purchase of Electric Energy by Large Users amount ratio and electric energy accumulation power consumption amount ratio;

Interactive load index comprises controllable burden ratio, step-down load shedding ratio, periodically control overhead ratio, interruptible load ratio, DC load ratio, supply of cooling, heating and electrical powers ratio and batteries of electric automobile load proportion;

The Smart Home ratio that intelligent index comprises intelligent electric meter coverage rate, realizes user's ratio of energy efficiency management, realizes the load proportion of energy efficiency management and the interaction of participation electrical network;

(2) combine arrange Novel electric load index, described Novel electric load evaluation module verify described data verification and correction module, repair after data process, calculate the end value of each index, for electrical network assess data supporting is provided;

(3) described Novel electric load evaluation module carries out depth analysis to every Novel electric load index, in conjunction with the end value of indices, calculates the score value of each index;

(4) adopt the score value of AHP method to each index that step (3) obtains to be weighted on average, obtain the comprehensive assessment value of Novel electric load evaluation index in the active distribution network of somewhere.

6. a kind of active distribution network A+E system as described in claim 1 or 2 or 3, is characterized in that: described distributed power source evaluation module runs two aspects from utilization of new energy resources and new forms of energy and assesses distributed power source, and its detailed process is:

(1) distributed power source evaluation index is set;

Distributed power source evaluation index comprises utilization of new energy resources and new forms of energy run two class indexs;

Utilization of new energy resources index comprises clean energy resource permeability, distributed power source receives ability, electric automobile to fill to change electric facility capacity density, stored energy capacitance ratio, distributed power generation are generated power for their own use ratio and distributed power generation state monopoly for purchase and marketing ratio;

New forms of energy operating index comprises distributed power source data upload rate, distributed power source Long-distance Control rate, distributed power source optical fiber communication coverage rate, outlet side quality of power supply qualification rate, distributed photovoltaic power average operating efficiency and distributed wind-powered electricity generation average operating efficiency;

(2) combine arrange distributed power source evaluation index, described distributed power source evaluation module verify described data verification and correction module, repair after data process, calculate the end value of each index, for electrical network assess data supporting is provided;

(3) described distributed power source evaluation module carries out depth analysis to every distributed power source evaluation index, in conjunction with the end value of indices, calculates the score value of each index;

(4) adopt the score value of AHP method to each index that step (3) obtains to be weighted on average, obtain the comprehensive assessment value of distributed power source evaluation index in the active distribution network of somewhere.