CN113269390A - High-reliability power supply area distribution network planning effect comprehensive evaluation method - Google Patents

High-reliability power supply area distribution network planning effect comprehensive evaluation method Download PDF

Info

Publication number
CN113269390A
CN113269390A CN202110349621.0A CN202110349621A CN113269390A CN 113269390 A CN113269390 A CN 113269390A CN 202110349621 A CN202110349621 A CN 202110349621A CN 113269390 A CN113269390 A CN 113269390A
Authority
CN
China
Prior art keywords
power supply
distribution network
planning
data
reliability
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110349621.0A
Other languages
Chinese (zh)
Inventor
刘永强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luliang Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Original Assignee
Luliang Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Luliang Power Supply Co of State Grid Shanxi Electric Power Co Ltd filed Critical Luliang Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Priority to CN202110349621.0A priority Critical patent/CN113269390A/en
Publication of CN113269390A publication Critical patent/CN113269390A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/06Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063Operations research, analysis or management
    • G06Q10/0639Performance analysis of employees; Performance analysis of enterprise or organisation operations
    • G06Q10/06393Score-carding, benchmarking or key performance indicator [KPI] analysis
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10Complex mathematical operations
    • G06F17/18Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/06Electricity, gas or water supply

Abstract

The invention discloses a high-reliability comprehensive evaluation method for planning effect of a power supply area distribution network, which relates to the technical field of power supply area distribution networks and comprises the following steps: s1, constructing an evaluation system: constructing a power supply area distribution network planning effect comprehensive index system, and mainly making a planning scheme of power supply area distribution network planning effect comprehensive evaluation indexes; s2, forming a planning scheme: making data and a scheme for planning a distribution network in a power supply area, and combining the planning scheme with a map for visual deployment; s3, acquiring basic data of distribution network planning; s4, comprehensively analyzing data; s5, obtaining an evaluation result, solving the problems that the evaluation system of the distribution network planning effect index of the high-reliability power supply area is not clear and the evaluation result is fuzzy, finding the problem more intuitively by comparing the results after comprehensive evaluation, and being beneficial to a distribution network planning construction decision maker to select a proper distribution network planning scheme of the high-reliability power supply area so that the decision result is more practical.

Description

High-reliability power supply area distribution network planning effect comprehensive evaluation method
Technical Field
The invention relates to the technical field of power supply area distribution networks, in particular to a high-reliability comprehensive evaluation method for planning effect of a power supply area distribution network.
Background
The power distribution network is a component of a power system, whether the operation of the power distribution network is good depends on whether the planning and construction of the power distribution network are scientific or not, whether the power distribution network is economical or not is reasonable, for power supply enterprises with huge fixed assets, the planning work of the power distribution network plays a decisive role in the survival and development of the power supply enterprises all the time, the power distribution network is an important support for the development of the power distribution network, along with the rapid acceleration of the urbanization process of China, the construction of high-reliability power supply areas of new urban areas and economic development areas is as good as possible, the high-reliability power supply areas are generally within the range of A + and A-type power supply areas specified by the technical guide for planning and designing the power distribution network, and the economic, safety, reliability and technical performance of the power distribution network are higher in the planning and construction process.
At present, researchers in the industry and at home and abroad have developed researches on high-reliability power distribution network planning schemes in power distribution areas, and due to the fact that many factors are involved in power distribution network planning construction, a decision maker does not have a uniform standard when selecting the high-reliability power distribution network planning scheme, and needs to establish an index system for effectively evaluating the comprehensive performance of a direct-current active distribution network; meanwhile, the calculation of the complex problem of comprehensive evaluation of the distribution network planning scheme is simplified, and therefore, a high-reliability comprehensive evaluation method for the distribution network planning effect in the power supply area is provided to solve the problem.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-reliability comprehensive evaluation method for the planning effect of a power distribution network in a power supply area, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a high-reliability power supply area distribution network planning effect comprehensive evaluation method comprises the following steps:
s1, constructing an evaluation system: constructing a power supply area distribution network planning effect comprehensive index system, and mainly making a planning scheme of power supply area distribution network planning effect comprehensive evaluation indexes;
s2, forming a planning scheme: making data and a scheme for planning a distribution network in a power supply area, and combining the planning scheme with a map for visual deployment;
s3, acquiring basic data of distribution network planning: acquiring data and a scheme for power supply area distribution network planning;
s4, comprehensive analysis data: evaluating data and scheme of power supply area distribution network planning and a power supply area distribution network planning effect comprehensive index system;
s5, obtaining an evaluation result: and analyzing a planning construction effect evaluation strategy based on the obtained processing data.
Further optimizing the technical scheme, the comprehensive index system for the planning effect of the distribution network in the power supply area comprises an internal influence factor index and an external influence factor index.
Further optimizing the technical scheme, the internal influence factor indexes comprise reliability indexes and power supply capacity indexes, the reliability indexes and the power supply capacity indexes are mainly analyzed and considered from the aspect of influence of accidents on normal power supply, and the main related contents comprise: frequency, occurrence frequency, duration, power loss and electric quantity, the reliability index comprises load point and power supply connection condition, mainly, line problems, such as line overload use and operation, can cause the drop fuse to blow out on one phase, or the condition that one phase can not be combined or can not be combined in the three-phase switch occurs, the factors in the aspect of the internal circuit which are influenced also comprise bad foundation caused by circuit disconnection and contact oxidation, local short circuit of an iron core, burnout, insulation damage distribution transformer fault, sleeve to ground breakdown and discharge condition, damaged opening and closing part of a tap switch, abnormal discharge fault which occurs, short circuit and disconnection fault of a coil, the other factor is influenced by a grid structure, and the structure of a distribution network is unscientific and unreasonable, so that the safety standard requirement can not be met, the fault detection and analysis cannot be performed quickly in time in the aspect of faults or personnel damages on any link of the power system.
The technical scheme is further optimized, the power supply capacity indexes comprise load, site planning, high-medium voltage distribution network planning and low-voltage distribution network planning, the distribution and power supply of the power supply capacity indexes are insufficient in power supply capacity caused by equipment and capital problems, and meanwhile, the maximum power supply distance and the network loss rate can have great influence on normal power distribution coordination and power distribution load.
Further optimizing the technical scheme, the external influence factor indexes comprise economic indexes, environmental protection indexes and technical indexes, and the economic indexes comprise the sum of initial investment cost, transformation and upgrade cost and operation and maintenance management cost.
The technical scheme is further optimized, the environmental protection index is influenced by natural factors of climate, and different climates, weathers and terrains have different degrees of influence and damage on the reliability of the power distribution network.
This technical scheme is further optimized, technical index factor set, including informationization level, equipment quality level, spatial grid structure degree of robustness and automation level, the distribution network component receives the climatic effect and the condition that breaks down takes place occasionally, and the operation interruption outage condition that is not artificial controllable also can influence the reliability of power supply because artificial misoperation also can lead to the power supply reliability.
The technical scheme is further optimized, and the basic data are reliability data, power supply capacity data, economy data, environmental protection data and technical data.
Further optimizing the technical scheme, the comprehensive analysis data is calculated by adopting a DEMATEL-ANP-entropy-resisting weight method, and the reliability data, the power supply capacity data, the economic data, the environmental protection data and the technical data are compared with the reliability index, the power supply capacity index, the economic index, the environmental protection index and the technical index.
Compared with the prior art, the invention provides a high-reliability comprehensive evaluation method for the planning effect of the power distribution network in the power supply area, which has the following beneficial effects:
according to the comprehensive evaluation method for the distribution network planning effect in the high-reliability power supply area, through the insufficient mining of uncertain information, the uncertainty of subjective understanding in decision making is reduced, the problems that the evaluation system of the distribution network planning effect index in the high-reliability power supply area is unclear and the evaluation result is fuzzy are solved, the problem can be found more visually through result comparison after comprehensive evaluation, a distribution network planning construction decision maker is facilitated to select a proper distribution network planning scheme in the high-reliability power supply area, and the decision making result is more practical.
Drawings
Fig. 1 is a schematic flow chart of a method for comprehensively evaluating the planning effect of a high-reliability power supply area distribution network according to the present invention;
fig. 2 is a functional block diagram of a method for comprehensively evaluating the planning effect of a high-reliability power supply area distribution network according to the present invention;
fig. 3 is a schematic diagram of a calculation formula of a comprehensive evaluation method of a high-reliability power supply area distribution network planning effect comprehensive evaluation method provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
Referring to fig. 1 to 3, the present invention discloses a method for comprehensively evaluating the planning effect of a distribution network in a high-reliability power supply area, which includes the following steps:
s1, constructing an evaluation system: constructing a power supply area distribution network planning effect comprehensive index system, and mainly making a planning scheme of power supply area distribution network planning effect comprehensive evaluation indexes;
s2, forming a planning scheme: making data and a scheme for planning a distribution network in a power supply area, and combining the planning scheme with a map for visual deployment;
s3, acquiring basic data of distribution network planning: acquiring data and a scheme for power supply area distribution network planning;
s4, comprehensive analysis data: evaluating data and scheme of power supply area distribution network planning and a power supply area distribution network planning effect comprehensive index system;
s5, obtaining an evaluation result: and analyzing a planning construction effect evaluation strategy based on the obtained processing data.
As a specific optimization scheme of this embodiment, the comprehensive indicator system for planning effect of distribution network in power supply area includes an internal influence factor index and an external influence factor index, where the internal influence factor index includes a reliability index and a power supply capability index, and the reliability index and the power supply capability index are mainly analyzed and considered from the aspect of influence of an accident on normal power supply, and mainly related contents include: frequency, occurrence frequency, duration, power loss and electric quantity, the reliability index comprises load point and power supply connection condition, mainly, line problems, such as line overload use and operation, can cause the drop fuse to blow out on one phase, or the condition that one phase can not be combined or can not be combined in the three-phase switch occurs, the factors in the aspect of the internal circuit which are influenced also comprise bad foundation caused by circuit disconnection and contact oxidation, local short circuit of an iron core, burnout, insulation damage distribution transformer fault, sleeve to ground breakdown and discharge condition, damaged opening and closing part of a tap switch, abnormal discharge fault which occurs, short circuit and disconnection fault of a coil, the other factor is influenced by a grid structure, and the structure of a distribution network is unscientific and unreasonable, so that the safety standard requirement can not be met, the fault detection and analysis cannot be performed quickly in time in the aspect of faults or personnel damages on any link of the power system.
As a specific optimization scheme of this embodiment, the power supply capability index includes load, site planning, high-medium voltage distribution network planning, and low-voltage distribution network planning, and the distribution and power supply of the power supply capability index are insufficient in power supply capability due to equipment and capital problems, and meanwhile, the maximum power supply distance and the network loss rate both have a large influence on normal power distribution co-operation and power distribution load.
As a specific optimization scheme of this embodiment, the external influence factor indexes include economic indexes, environmental protection indexes, and technical indexes, where the economic indexes include a sum of initial investment cost, modification and upgrade cost, and operation and maintenance management cost.
As a specific optimization scheme of this embodiment, the environmental protection performance index is influenced by natural factors of climate, and different climates, weather, topography produce influence and destruction of different degrees to the reliability of distribution network, technical index factor set, including informationization level, equipment quality level, grid structure robustness and automation level, distribution network element is influenced by climate and the circumstances that breaks down occasionally takes place, and the outage circumstances also can influence the reliability of power supply for not artificial controllable operation interruption, because artificial misoperation also can lead to the power supply reliability.
As a specific optimization scheme of this embodiment, the basic data is reliability data, power supply capacity data, economic data, environmental protection data, and technical data.
As a specific optimization scheme of this embodiment, the comprehensive analysis data is calculated by using a demote-ANP-entropy-resisting method, and the reliability data, the power supply capacity data, the economic data, the environmental protection data and the technical data are compared with the reliability index, the power supply capacity index, the economic index, the environmental protection index and the technical index.
The specific steps are as follows: s1, constructing an evaluation system: the method comprises the following steps of constructing a power supply area distribution network planning effect comprehensive index system, and mainly making a planning scheme of a power supply area distribution network planning effect comprehensive evaluation index, wherein the power supply area distribution network planning effect comprehensive index system comprises an internal influence factor index and an external influence factor index, the internal influence factor index comprises a reliability index and a power supply capacity index, the reliability index and the power supply capacity index are mainly analyzed and considered from an accident to the normal power supply influence aspect, and the main related contents are as follows: the power failure frequency, the occurrence frequency, the duration time and the lost electric power and electric quantity, the reliability indexes comprise the load point and the power supply connection condition, mainly the problems in the aspects of circuits, such as the circuit overload use and operation, one-phase fusing of a drop fuse can be caused, or the condition that one phase can not be combined or can not be combined appears in a three-phase switch, the factors in the aspects of the influenced internal circuits also comprise bad foundation caused by circuit disconnection and contact oxidation, local short circuit of an iron core, burning, insulation damage of a distribution transformer, the ground breakdown and discharge condition of a sleeve, damage and abnormal discharge fault of the opening and closing part of a tap switch, the short circuit and disconnection fault of a coil, another factor is influenced by the structure of a distribution network, the structure of the distribution network is unscientific and unreasonable, the safety standard requirement can not be met, and the fault detection and analysis can not be rapidly carried out in the aspects of fault or personnel damage on any link of the electric power system, the power supply capacity indexes comprise load, site planning, high-medium voltage distribution network planning and low-voltage distribution network planning, the distribution and power supply of the power supply capacity indexes are insufficient in power supply capacity due to equipment and capital problems, meanwhile, the maximum power supply distance and the network loss rate have great influence on normal power distribution coordination and power distribution load, the power shortage refers to the probability of power failure possibly occurring in one year, the power shortage frequency mainly refers to the frequency of the occurrence of load shedding states in one year, the power shortage duration mainly refers to the duration of power failure accidents occurring in one year, the load shedding duration of each time mainly refers to the average power failure time caused by a single fault, the expected value of power shortage refers to the average power shortage in one year, the expected value of power shortage is six the expected value of power shortage of each time, and refers to the average power shortage caused by a single fault, seventhly, the expected value of the electricity shortage mainly refers to the average electricity shortage in one year, the indexes are reflected in a certain load point and can be applied and analyzed in a system, so that system indexes and stage indexes are fully considered when planning a power grid, dynamic supervision is realized, specific operation rules are explored, scientific index standards are determined, external influence factor indexes comprise economic indexes, environmental protection indexes and technical indexes, the economic indexes comprise the sum of initial investment cost, transformation and upgrading cost and operation and maintenance management cost, the environmental protection indexes are influenced by natural climate factors, and different degrees of influence and damage are generated on the reliability of the power distribution network by different climates, weather and terrains, and the technical index factor sets comprise informatization levels, equipment quality levels, grid structure robustness degrees and automation levels, the power distribution network element is influenced by weather to have a fault, the power supply reliability is influenced by the condition that the operation is interrupted and the operation is not controlled manually, the power supply reliability is also influenced by the condition that the operation is interrupted and the operation is not controlled manually, the reliability index, the power supply capacity index, the economic index, the environmental protection index and the technical index are comprehensively set, the establishment of the comprehensive evaluation planning index system of the power grid must follow a certain principle, on one hand, the high-level reliability and high-efficiency intelligent power grid is established as a fighting target by strictly following the legal and regulatory requirements of the relevant state and taking the user requirement as a basic starting point and following the development rule of the power grid, thereby improving the power supply reliability of the power grid from a silver source, improving the whole power supply capacity and establishing a safe and reliable modern power supply system, and in the establishment of the evaluation index system of the power distribution network, all components of the system reflect the problems of the power supply network in the actual operation, the quality and the efficiency of each information are guaranteed in the aspect of collection, a specific power distribution network planning system with characteristics is established, and the system mainly comprises the following contents: firstly, on the basis of researching and analyzing a power distribution network planning theory, formulating more clear requirements and principles so as to improve authority and seriousness, secondly, fully integrating practical situations to carry out targeted design and development, striving for simplicity and use, thereby making an overall evaluation scheme, thirdly, embodying practicability, which is a basic starting point of comprehensive evaluation design of a power grid, necessarily carrying out evaluation grade design, classification guidance and scientific design based on practical situations so as to embody specific color and applicability so as to operate better, establishing a comprehensive evaluation planning index system of the power grid must be supported by a perfect theoretical foundation system, on the one hand, researching and analyzing from the perspective of a full life cycle cost management theory, taking the theory as a basic guidance, carrying out corresponding investment budget and evaluation analysis on the planning, and according to the construction and operation costs of different stages in different periods, the economic benefit comprehensive evaluation is carried out on the equipment and the like used in each stage. On the other hand, an evaluation formula of reliability is taken as a basic supporting point, on the basis of ensuring the continuous development and the improvement of the power grid, the economy and the reliability of the power grid are fully considered, a modern financial management concept is introduced, cost benefit analysis is taken as a basic method, the correct investment of capital is guided, meanwhile, a reliable power distribution network method is taken as a basic means, the determined planning scheme is subjected to the capital budget of the reliability, so that a more scientific evaluation scheme is designed, dynamic adjustment is continuously carried out, the practicability, effectiveness, dynamics, comprehensiveness and continuity of the scheme are improved, the establishment of a comprehensive evaluation planning index system of the power grid must be supported by a perfect theoretical basic system, on one hand, research and analysis are carried out from the perspective of a full-life cycle cost management theory, and corresponding investment and evaluation analysis are carried out on the planning by taking the theory as the basic guidance, and according to the construction and operation costs of different stages in different periods, the economic benefit comprehensive evaluation is carried out on the equipment and the like used in each stage, on the other hand, the evaluation formula of the reliability is taken as a basic supporting point, on the basis of ensuring the continuous development and the improvement of the power grid, the economy and the reliability of the power grid are fully considered, the modern financial management concept is introduced, the cost benefit analysis is taken as a basic method to guide the correct investment of capital, meanwhile, the reliable power distribution network method is also taken as a basic means to carry out the reliable capital budget on the determined planning scheme, so that a more scientific evaluation scheme is designed, the dynamic adjustment is continuously carried out, the practicability, the effectiveness, the dynamic property, the comprehensiveness and the continuity of the scheme are further improved, the current power distribution network is a closely connected whole, and only each power grid and the effective connection and cooperation between the power grids are realized, the balance between the power supply level of the corresponding area and the power utilization level of the user can be ensured, so that the quality of the utilization point and the satisfaction degree of the user are improved on the basis of saving resources and cost, and the communication coordination and cooperation among all departments are enhanced. With the continuous introduction of automation technology, the automation of the power grid is also the inevitable direction of future situation development, so that the power grid planning needs to be comprehensively analyzed and comprehensively measured, a more reliable and complete operation scheme and an evaluation index system are explored in combination with regional reality, and the continuous operation, safe operation and smooth operation of the power grid are ensured.
S2, forming a planning scheme: the method comprises the steps of formulating data and schemes for power supply area distribution network planning, combining the planning schemes with a map for visual deployment, inputting the planning schemes into a system, and displaying external factors of the planning schemes through the cooperation of the map.
S3, acquiring basic data of distribution network planning: and acquiring data and a scheme for planning a distribution network in a power supply area, wherein the basic data are reliability data, power supply capacity data, economic data, environmental protection data and technical data.
S4, comprehensive analysis data: evaluating data and scheme of power supply area distribution network planning and a power supply area distribution network planning effect comprehensive index system, calculating the comprehensive analysis data by adopting a DEMATEL-ANP-inverse entropy weight method, establishing a weight matrix DEMATEL-ANP judgment matrix of a macroscopic demand index set, and calculating a subjective weight vector Wi of a macroscopic demand index according to a DEMATEL-ANP calculation formula; establishing an initial judgment matrix X of a macro demand index set, namely an inverse entropy weight judgment matrix, and obtaining an objective weight vector Wd of the macro demand index according to a calculation formula of an inverse entropy weight method by using the inverse entropy weight judgment matrix; obtaining a final weight vector w of the macro demand index set by using a combined weight calculation formula; establishing weight matrix parameters of each microscopic evaluation index set, and calculating weight vectors of each microscopic evaluation index set by improving a gray correlation method, wherein a DEMATEL-ANP-entropy weight method is a calculation formula of a comprehensive evaluation method which can be used for multiple objects and multiple indexes, please refer to figure 3, the evaluation result is mainly based on objective data, is hardly influenced by subjectivity, and can avoid interference of human factors to a great extent, each scoring function is subjected to curve fitting on a discrete distribution network planning scoring standard by a quadratic polynomial fitting method, each index scoring function is established, basic data of distribution network planning is substituted into the index scoring function, reliability data, power supply capacity data, economic data, environmental protection data and technical data are compared with the reliability index, the power supply capacity index, the economic index, the environmental protection index and the technical index, through calculation, comparison and analysis of data, comprehensive evaluation indexes and planning data are obtained.
S5, obtaining an evaluation result: and analyzing a planning construction effect evaluation strategy based on the obtained processing data, modifying the planning according to the difference between the comprehensive evaluation index and the planning data, and determining whether the planning is implemented or not.
The invention has the beneficial effects that: constructing a power supply area distribution network planning effect comprehensive index system, namely constructing a reliability index and a power supply capacity index in internal influence factors, acquiring data and a scheme of power supply area distribution network planning, wherein the acquired data is the same as the power supply area distribution network planning effect comprehensive index, the duration, the power loss, the electric quantity, the space truss structure, the load, the site planning, the high-medium voltage distribution network planning and the low-voltage distribution network planning, calculating two groups of comprehensive analysis data by adopting a DEMATEL-ANP-inverse entropy weight method, obtaining the comprehensive evaluation index and the planning data through the calculation, comparison and analysis of the data, modifying the planning according to the difference between the comprehensive evaluation index and the planning data, determining whether the planning is implemented or not, and reducing the uncertainty of subjective understanding in decision making by undermining uncertain information, the problems that an evaluation system of distribution network planning effect indexes of a high-reliability power supply area is unclear and evaluation results are fuzzy are solved, the problems can be found more visually through result comparison after comprehensive evaluation, and a distribution network planning construction decision maker is facilitated to select a proper distribution network planning scheme of the high-reliability power supply area, so that the decision results are more practical.
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 (9)

1. A high-reliability power supply area distribution network planning effect comprehensive evaluation method is characterized by comprising the following steps:
s1, constructing an evaluation system: constructing a power supply area distribution network planning effect comprehensive index system, and mainly making a planning scheme of power supply area distribution network planning effect comprehensive evaluation indexes;
s2, forming a planning scheme: making data and a scheme for planning a distribution network in a power supply area, and combining the planning scheme with a map for visual deployment;
s3, acquiring basic data of distribution network planning: acquiring data and a scheme for power supply area distribution network planning;
s4, comprehensive analysis data: evaluating data and scheme of power supply area distribution network planning and a power supply area distribution network planning effect comprehensive index system;
s5, obtaining an evaluation result: and analyzing a planning construction effect evaluation strategy based on the obtained processing data.
2. The method for comprehensively evaluating the planning effect of the distribution network in the power supply area with high reliability according to claim 1, wherein the comprehensive index system for the planning effect of the distribution network in the power supply area comprises an internal influence factor index and an external influence factor index.
3. The method according to claim 2, wherein the internal influence factor indexes comprise reliability indexes and power supply capacity indexes, the reliability indexes and the power supply capacity indexes are mainly analyzed and considered from the aspect of influence of accidents on normal power supply, and the main related contents comprise: frequency, occurrence frequency, duration, power loss and electric quantity, the reliability index comprises load point and power supply connection condition, mainly, line problems, such as line overload use and operation, can cause the drop fuse to blow out on one phase, or the condition that one phase can not be combined or can not be combined in the three-phase switch occurs, the factors in the aspect of the internal circuit which are influenced also comprise bad foundation caused by circuit disconnection and contact oxidation, local short circuit of an iron core, burnout, insulation damage distribution transformer fault, sleeve to ground breakdown and discharge condition, damaged opening and closing part of a tap switch, abnormal discharge fault which occurs, short circuit and disconnection fault of a coil, the other factor is influenced by a grid structure, and the structure of a distribution network is unscientific and unreasonable, so that the safety standard requirement can not be met, the fault detection and analysis cannot be performed quickly in time in the aspect of faults or personnel damages on any link of the power system.
4. The method according to claim 3, wherein the power supply capability index includes load, site planning, high-medium voltage distribution network planning and low-voltage distribution network planning, the distribution and power supply of the power supply capability index are insufficient in power supply capability due to equipment and capital problems, and the maximum power supply distance and the network loss rate have a large influence on normal power distribution coordination and power distribution load.
5. The method according to claim 2, wherein the external influence factor indexes comprise economic indexes, environmental protection indexes and technical indexes, and the economic indexes comprise the sum of initial investment cost, transformation and upgrade cost and operation and maintenance management cost.
6. The method for comprehensively evaluating the planning effect of the power distribution network in the high-reliability power supply area according to claim 5, wherein the environmental protection index is influenced by natural factors of climate, and different climates, weather and terrains have different degrees of influence and damage on the reliability of the power distribution network.
7. The method according to claim 5, wherein the technical index factor set comprises an informatization level, an equipment quality level, a grid structure robustness degree and an automation level, and the power distribution network elements are influenced by weather and have faults, and the power supply reliability is influenced by the condition that the operation is interrupted or shut down, which is not artificially controllable, because the power supply reliability is also influenced by artificial operation errors.
8. The method for comprehensively evaluating the planning effect of the distribution network in the high-reliability power supply area according to claim 1, wherein the basic data are reliability data, power supply capacity data, economic data, environmental protection data and technical data.
9. The method for comprehensively evaluating the planning effect of the power distribution area network with high reliability as claimed in claim 1, wherein the comprehensive analysis data is calculated by adopting a DEMATEL-ANP-entropy-resisting method, and the reliability data, the power supply capacity data, the economic data, the environmental protection data and the technical data are compared with the reliability index, the power supply capacity index, the economic index, the environmental protection index and the technical index.
CN202110349621.0A 2021-03-31 2021-03-31 High-reliability power supply area distribution network planning effect comprehensive evaluation method Pending CN113269390A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110349621.0A CN113269390A (en) 2021-03-31 2021-03-31 High-reliability power supply area distribution network planning effect comprehensive evaluation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110349621.0A CN113269390A (en) 2021-03-31 2021-03-31 High-reliability power supply area distribution network planning effect comprehensive evaluation method

Publications (1)

Publication Number Publication Date
CN113269390A true CN113269390A (en) 2021-08-17

Family

ID=77228466

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110349621.0A Pending CN113269390A (en) 2021-03-31 2021-03-31 High-reliability power supply area distribution network planning effect comprehensive evaluation method

Country Status (1)

Country Link
CN (1) CN113269390A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114638537A (en) * 2022-04-02 2022-06-17 湖北精准极速科技有限公司 Digital smart power grid region management method, system and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105095971A (en) * 2014-05-07 2015-11-25 国网山东省电力公司泰安供电公司 Comprehensive assessment planning method based on power distribution network subareas
CN105512448A (en) * 2014-09-22 2016-04-20 国家电网公司 Power distribution network health index assessment method
CN108764659A (en) * 2018-05-11 2018-11-06 贵州电网有限责任公司凯里供电局 A kind of distribution network reliability analysis of Influential Factors method based on Fuzzy Comprehensive Method
CN109767074A (en) * 2018-12-14 2019-05-17 国网江苏省电力有限公司经济技术研究院 Effect comprehensive estimation method is planned in a kind of distribution of high reliability service area
CN110264032A (en) * 2019-05-08 2019-09-20 上海电力学院 A kind of acquisition methods of direct current distribution Plan mode result

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105095971A (en) * 2014-05-07 2015-11-25 国网山东省电力公司泰安供电公司 Comprehensive assessment planning method based on power distribution network subareas
CN105512448A (en) * 2014-09-22 2016-04-20 国家电网公司 Power distribution network health index assessment method
CN108764659A (en) * 2018-05-11 2018-11-06 贵州电网有限责任公司凯里供电局 A kind of distribution network reliability analysis of Influential Factors method based on Fuzzy Comprehensive Method
CN109767074A (en) * 2018-12-14 2019-05-17 国网江苏省电力有限公司经济技术研究院 Effect comprehensive estimation method is planned in a kind of distribution of high reliability service area
CN110264032A (en) * 2019-05-08 2019-09-20 上海电力学院 A kind of acquisition methods of direct current distribution Plan mode result

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
吴桂联 等: "中低压配电网整体规划方案综合评估", 电力建设, no. 11, pages 64 - 69 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114638537A (en) * 2022-04-02 2022-06-17 湖北精准极速科技有限公司 Digital smart power grid region management method, system and storage medium
CN114638537B (en) * 2022-04-02 2022-11-22 广西电网有限责任公司钦州供电局 Digital smart power grid region management method, system and storage medium

Similar Documents

Publication Publication Date Title
Chanda et al. Quantifying power distribution system resiliency using code-based metric
Shi et al. Enhancing distribution system resilience against extreme weather events: Concept review, algorithm summary, and future vision
CN106021596B (en) A kind of analysis method of electric network fault rush of current topological diagram
CN111680872B (en) Power grid risk calculation method based on multi-source data fusion
Elkadeem et al. Improving performance of underground MV distribution networks using distribution automation system: A case study
Borghei et al. A multi-objective optimization scheme for resilient, cost-effective planning of microgrids
Tor et al. Power distribution asset management
Syrri et al. Contribution of Microgrids to distribution network reliability
CN113269390A (en) High-reliability power supply area distribution network planning effect comprehensive evaluation method
Elkadeem et al. Optimal automation level for reliability improvement and self-healing MV distribution networks
CN105404933A (en) Computing system for enhancing power supply reliability for power distribution network and computing method thereof
Leite et al. Risk mitigation approaches for improved resilience in distribution networks
Akintola Reliability evaluation of secondary distribution system in nigeria: a case study of Ayetoro 1 substation, Aguda, Lagos State
CN108879662B (en) Power distribution network sequential control transformation decision method based on safety efficiency cost
Mishra et al. Resilient smart-grid system: Issues and challenges
Brint et al. Evaluating strategies for reliable distribution
Fioravanti et al. Automation and remote control to improve LV grid management
CN103390249A (en) Power distribution scheduling aid decision making method based on multiple dimensions
Bernardon et al. Smart grid concepts applied to self-healing in distribution system
Strydom et al. Recloser placement on medium voltage distribution networks
Zhang et al. Enhancing power grid resilience against typhoon disasters by scheduling of generators along with optimal transmission switching
Nassif A resilience-driven battery energy storage system sizing strategy for grid edge radial supplies
Yang et al. A Box Transformer Substation Fault Diagnosis Based on IoT
Elkadeem et al. Distribution automation system implemented for underground medium voltage networks: case study
Pilo et al. Planning of Power Distribution Systems

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination