CN104050606A - Method for analyzing weak links of power distribution network status - Google Patents
Method for analyzing weak links of power distribution network status Download PDFInfo
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- CN104050606A CN104050606A CN201410295711.6A CN201410295711A CN104050606A CN 104050606 A CN104050606 A CN 104050606A CN 201410295711 A CN201410295711 A CN 201410295711A CN 104050606 A CN104050606 A CN 104050606A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
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- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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Abstract
The invention provides a method for analyzing weak links of the power distribution network status. The method includes the steps of analyzing characteristics of a regional power distribution network, establishing a power distribution network status weak link analysis index system, collecting power distribution network status data corresponding to all indexes in the analysis index system, checking and analyzing the power distribution network status data in the analysis index system item by item so as to find out the weak links of the power distribution network status and other steps. The method has the advantages that when the weak links of the power distribution network status are analyzed, the single problem of existence of the power distribution network is considered, and the integrality and the sustainable development of the power distribution network are considered simultaneously, so the analysis method is more scientific and comprehensive; the method provides a beneficial reference for power distribution network planners to analyze the weak links of the power distribution network status, and provides a powerful technical support for power distribution network planning work in the future; the index system is easy to master and operate, power distribution network construction target making, power distribution network status data acquisition and the like can be easily understood, and the index system can be conveniently mastered by actual operation personnel.
Description
Technical field
The invention belongs to distribution network control technology field, particularly relate to a kind of power distribution network present situation method for analyzing weak link.
Background technology
In electric system, conventional power distribution network present situation method for analyzing weak link is only paid close attention to power distribution network present situation in a certain respect at present, and lacks an individual system.In addition, it is the basis using distribution system grid structure relative strength index and distribution system overall security index as Security Analysis of Distribution Networks, be confined to power distribution network individual event capability evaluation but shortcoming is setup measures, lack according to current load level and the comprehensive assessment of situation of change to electric power network technique economic rationality.
Another kind of analytical approach is distribution network reliability analytical approach.The method proposes economic reliability index to assess and can ensure that electrical network has good economic benefit in having higher reliability.The comprehensive of power distribution network assessment strengthened in the combination of different indexs.But being assessment result, shortcoming fails to solve some outstanding problems in distribution network construction, planning, the one, and the proposition of immediate plan and construction project and decision-making, the 2nd, planning, the required source book of load prediction are collected and accumulation.
Also having a kind of analytical approach is power distribution network economy row analytical approach.The method points out that the Economic Equivalent of safe reliability measure is implement economic interests that a certain security measures can bring and its implementation cost poor, it is the implementation benefit of security measures, but its shortcoming is not obvious to the directive significance of real work, evaluation work could not be combined preferably with the main business of Utilities Electric Co., assessment achievement is utilized insufficient
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of power distribution network present situation method for analyzing weak link.
In order to achieve the above object, power distribution network present situation method for analyzing weak link provided by the invention comprises the following step of carrying out in order:
Step 1) analyze the feature of local distribution network:
The related economic data that distribution network planning personnel announce by searching government's yearbook and government, analyze regional geographic position, economic society historical development and planning, grasp city developing stage of living in; Utilize the existing dispatch automated system of grid company, PMS system, generalized information system to search electrical network present situation, analyze power construction, power grid construction, network load situation, grasp power network development nargin; Analyzed area is built the matching degree with distribution network construction, thereby determines distribution network construction principle and construction object;
Step 2) set up power distribution network present situation weak link analysis indexes system:
On the basis of above-mentioned definite distribution network construction principle and construction object, utilize area of computer aided to set up a set of analysis indexes system that can thoroughly evaluating power distribution network present situation weak link; Analysis indexes system is divided into four major parts: security, economy, adaptability, harmony;
Step 3) power distribution network as-is data corresponding to each index in collection analysis index system:
Distribution network planning personnel collect power distribution network as-is data corresponding to each index in above-mentioned analysis indexes system by Utilities Electric Co. in the infosystem of building, the infosystem relating to comprises GIS, PMS, dispatching automation, power consumer power information acquisition system, thereby grasps power distribution network ruuning situation comprehensively;
Step 4) the power distribution network as-is data in check analysis index system to be to find out power distribution network present situation weak link item by item:
Distribution network planning personnel are entered into the above-mentioned power distribution network as-is data of collecting in the analysis indexes system of utilizing computing machine foundation, and the power distribution network as-is data in analysis indexes system is compared with distribution network construction target item by item, to find out power distribution network present situation weak link; The weak link that can analyze by this system is as follows: N-1 percent of pass is on the low side, capacity-load ratio is not in rational scope, the equipment operation time limit is long, operating cost and construction cost are bigger than normal, electrical network utilization ratio is on the low side, power grid construction passage deficiency, for the investment of next step power distribution network and construction have indicated direction.
In step 2) in, described security comprises: power distribution network N-1 percent of pass, capacity-load ratio, equipment; Economy comprises performance driving economy, builds economy; Adaptability comprises that electrical network utilization ratio, electrical network can extend ability, power supply and demand adaptability; Harmony comprises power network development speed coordination, power network development scale harmony, Connection Mode harmony, power grid construction passage harmony.
The beneficial effect of power distribution network present situation method for analyzing weak link provided by the invention:
(1) this method, in the time analyzing power distribution network present situation weak link, has not only been considered the single problem that power distribution network exists, and has considered globality and the sustainable developability of power distribution network simultaneously, therefore more science, comprehensive of this analytical approach.
(2) this method provides useful reference for distribution network planning personnel carry out the analysis of power distribution network present situation weak link, for distribution network planning work in the future provides strong technical support.
(3) this index system is easy to grasp and operation, no matter, from aspects such as distribution network construction target making or power distribution network as-is data obtain, is all easily understood, and facilitates practical operation personnel skillfully to grasp.
Brief description of the drawings
Fig. 1 is power distribution network present situation method for analyzing weak link process flow diagram provided by the invention.
Fig. 2 is power distribution network present situation weak link index system figure provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, power distribution network present situation method for analyzing weak link provided by the invention is elaborated.
As shown in Figure 1, power distribution network present situation method for analyzing weak link provided by the invention comprises the following step of carrying out in order:
Step 1) analyze the feature of local distribution network:
The related economic data that distribution network planning personnel announce by searching government's yearbook and government, analyze regional geographic position, economic society historical development and planning, grasp city developing stage of living in; Utilize the existing dispatch automated system of grid company, PMS system, generalized information system to search electrical network present situation, analyze the situations such as power construction, power grid construction, network load, grasp power network development nargin; Analyzed area is built the matching degree with distribution network construction, thereby determines distribution network construction principle and construction object;
Step 2) set up power distribution network present situation weak link analysis indexes system:
On the basis of above-mentioned definite distribution network construction principle and construction object, utilize area of computer aided to set up a set of analysis indexes system that can thoroughly evaluating power distribution network present situation weak link, see Fig. 2; Analysis indexes system is divided into four major parts: security, economy, adaptability, harmony;
Wherein, security comprises: power distribution network N-1 percent of pass, capacity-load ratio, equipment; Economy comprises performance driving economy, builds economy; Adaptability comprises that electrical network utilization ratio, electrical network can extend ability, power supply and demand adaptability; Harmony comprises power network development speed coordination, power network development scale harmony, Connection Mode harmony, power grid construction passage harmony;
Step 3) power distribution network as-is data corresponding to each index in collection analysis index system:
Distribution network planning personnel collect power distribution network as-is data corresponding to each index in above-mentioned analysis indexes system by Utilities Electric Co. in the infosystem of building, the infosystem relating to comprises the infosystems such as GIS, PMS, dispatching automation, the collection of power consumer power information, thereby grasps power distribution network ruuning situation comprehensively;
Step 4) the power distribution network as-is data in check analysis index system to be to find out power distribution network present situation weak link item by item:
Distribution network planning personnel are entered into the above-mentioned power distribution network as-is data of collecting in the analysis indexes system of utilizing computing machine foundation, and the power distribution network as-is data in analysis indexes system is compared with distribution network construction target item by item, to find out power distribution network present situation weak link; The weak link that can analyze by this system is as follows: N-1 percent of pass is on the low side, capacity-load ratio is not in rational scope, the equipment operation time limit is long, operating cost and construction cost are bigger than normal, electrical network utilization ratio is on the low side, power grid construction passage deficiencies etc., for the investment of next step power distribution network and construction have indicated direction.
The analysis of power distribution network present situation weak link is the basis of distribution network planning, grasps the existing outstanding problem of power distribution network, equipment deficiency and potential safety hazard by it, improves specific aim and the validity of distribution network planning.Need to adopt more scientific, rational method to realize the analysis to power distribution network present situation weak link for this reason.The present invention proposes a kind of power distribution network present situation method for analyzing weak link, can thoroughly evaluating power distribution network present situation situation, improve power supply capacity and the adaptability of power distribution network.
Claims (2)
1. a power distribution network present situation method for analyzing weak link, is characterized in that: described power distribution network present situation method for analyzing weak link comprises the following step of carrying out in order:
Step 1) analyze the feature of local distribution network:
The related economic data that distribution network planning personnel announce by searching government's yearbook and government, analyze regional geographic position, economic society historical development and planning, grasp city developing stage of living in; Utilize the existing dispatch automated system of grid company, PMS system, generalized information system to search electrical network present situation, analyze power construction, power grid construction, network load situation, grasp power network development nargin; Analyzed area is built the matching degree with distribution network construction, thereby determines distribution network construction principle and construction object;
Step 2) set up power distribution network present situation weak link analysis indexes system:
On the basis of above-mentioned definite distribution network construction principle and construction object, utilize area of computer aided to set up a set of analysis indexes system that can thoroughly evaluating power distribution network present situation weak link; Analysis indexes system is divided into four major parts: security, economy, adaptability, harmony;
Step 3) power distribution network as-is data corresponding to each index in collection analysis index system:
Distribution network planning personnel collect power distribution network as-is data corresponding to each index in above-mentioned analysis indexes system by Utilities Electric Co. in the infosystem of building, the infosystem relating to comprises GIS, PMS, dispatching automation, power consumer power information acquisition system, thereby grasps power distribution network ruuning situation comprehensively;
Step 4) the power distribution network as-is data in check analysis index system to be to find out power distribution network present situation weak link item by item:
Distribution network planning personnel are entered into the above-mentioned power distribution network as-is data of collecting in the analysis indexes system of utilizing computing machine foundation, and the power distribution network as-is data in analysis indexes system is compared with distribution network construction target item by item, to find out power distribution network present situation weak link; The weak link that can analyze by this system is as follows: N-1 percent of pass is on the low side, capacity-load ratio is not in rational scope, the equipment operation time limit is long, operating cost and construction cost are bigger than normal, electrical network utilization ratio is on the low side, power grid construction passage deficiency, for the investment of next step power distribution network and construction have indicated direction.
2. power distribution network present situation method for analyzing weak link according to claim 1, is characterized in that: in step 2) in, described security comprises: power distribution network N-1 percent of pass, capacity-load ratio, equipment; Economy comprises performance driving economy, builds economy; Adaptability comprises that electrical network utilization ratio, electrical network can extend ability, power supply and demand adaptability; Harmony comprises power network development speed coordination, power network development scale harmony, Connection Mode harmony, power grid construction passage harmony.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110728457A (en) * | 2019-10-17 | 2020-01-24 | 广西电网有限责任公司电力科学研究院 | Operation risk situation perception method considering multi-level weak links of power distribution network |
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| CN110728457A (en) * | 2019-10-17 | 2020-01-24 | 广西电网有限责任公司电力科学研究院 | Operation risk situation perception method considering multi-level weak links of power distribution network |
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