CN103793748A - Multi-stage reliability improving method of distributed power supply-contained distribution networks - Google Patents
Multi-stage reliability improving method of distributed power supply-contained distribution networks Download PDFInfo
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- CN103793748A CN103793748A CN201310549201.2A CN201310549201A CN103793748A CN 103793748 A CN103793748 A CN 103793748A CN 201310549201 A CN201310549201 A CN 201310549201A CN 103793748 A CN103793748 A CN 103793748A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- 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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Abstract
The invention discloses a multi-stage reliability improving method of distributed power supply-contained distribution networks. The method comprises the following steps: collecting power supplying reliability and user average power failure time of distributed power supply-contained distribution networks; according to the power supplying reliability and user average power failure time, carrying out stage classification on distribution networks, and determining the distribution network of which power supplying reliability is greater than 99.980% and the average power failure time is less than 1.8 hours to be in a distribution network structure maturity period, the distribution network of which power supplying reliability is greater than 99.9100% and the average power failure time is less than 8 hours to be in a network work structure development period, and the distribution network of which power supplying reliability is greater than 99.8300% and the average power failure time is less than 15 hours to be in a distribution network structure construction period; and on the basis of the three different distribution network structure stages, respectively improving distribution network reliability in the terms of network, equipment, technology and management. With the method, the energy is saved and the distribution network operation efficiency is improved.
Description
Technical field
The present invention relates to mains supply field, particularly, relate to a kind of multistage reliability method for improving of power distribution network containing distributed power source.
Background technology
At present, with the horizontal development of electrical network, basis electrical network constantly changes, make the specific aim of reliability measure for improvement more and more not obvious, thereby cause reliability measure for improvement can not obtain maximum lifting effect, cause the investment waste of part human and material resources, reduce returns of investment ratio, reliability management is had a negative impact.
Existing distribution network reliability research mainly comprises analysis of Reliability and case study.Analysis of Reliability is mainly studied general status and the classification situation of power supply reliability index, by the detailed computational analysis to planning region mains supply reliability index level, for the reliability objectives of planning electrical network provides theory support.Case study comprises higher level's power level and medium voltage distribution network two aspects, the power supply capacity of power level Main Analysis electrical network, the indices that medium voltage distribution network mainly has a power failure from impact excavates the weak link of planning region present situation power distribution network at aspects such as network structure, equipment configuration, technical merit and management processes.All do not relate to for proposing containing the power distribution network development level of distributed power source the tactful direction technology contents that multistage reliability promotes.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of multistage reliability method for improving of power distribution network of distributed power source, to realize the advantage of saving the energy, mentioning operation of power networks efficiency.
For achieving the above object, the technical solution used in the present invention is:
Containing the multistage reliability method for improving of power distribution network of distributed power source, comprise the following steps:
Step 1, gathers containing distributed power source supplying power allocation reliability and the average power off time of user;
Step 2, according to power supply reliability and the average power off time of user electrical network is carried out to grade classification, power supply reliability is greater than to 99.980%, average power off time is less than the power distribution network of 1.8 hours and is defined as electric network composition mature period; Power supply reliability is greater than to 99.9100%, and average power off time is less than 8 hours and is defined as electric network composition development time; Power supply reliability is greater than to 99.8300%, and average power off time is less than 15 hours and is defined as electric network composition builds period;
Step 3, for above-mentioned three kinds of different electric network composition grades, improves respectively network, equipment, technology, management aspect lifting electric network reliability.
Further, described collection gathers following data containing distributed power source supplying power allocation reliability and the average power off time of user:
The average power off time of power failure range, frequency of power cut and single.
Further, described raising network, equipment, technology, management specifically comprise:
Described network facet: the trunk looped network rate that improves pressure network in electrical network makes satisfied the turning of circuit supply to require with the network of making rational planning for;
Described equipment aspect: improve the quality of power distribution equipment and strengthen circuit insulating rate etc., adopting and exempt from dimension equipment, comprising distributed power source access device;
Described technical elements: carry out uninterrupted operation and Distribution Automation Technology, shorten power off time, regional area guarantees that from network operation power supply user normally uses by distributed power source;
Described management aspect: the reliability management system of Erecting and improving, give full play to the synergism of reliability information, strengthen site work management level, the power failure schedule work of strengthening comprehension management, implements the performance appraisal system of power supply reliability work.
Further, in described electrical network, the lifting of network, equipment, technology, management has following constraint condition:
Described power distribution network meets radiativity and connectivity platform; Voltage-drop is limited in
Burden requirement, AP=D, wherein A is node incidence matrix, and P is network trend, and D is workload demand;
Line Flow restriction, Pi≤Pimax, wherein Pi is Branch Power Flow, Pimax is the maximum permission capacity of branch road.
Technical scheme of the present invention has following beneficial effect:
Technical scheme of the present invention, by reliability being promoted to the research of target and measure set, the power supply reliability level of analyzed area stage, sets up reliability development level rank and divides, and obtains reliability measure for improvement target.Utilize measure for improvement optimizing evaluation index system to carry out preferably, carrying out power supply safety analysis of strategies in conjunction with the overall Promotion Strategy of power grid construction to measure for improvement, draw lifting Reliability Strategy.Contain distributed power source Distribution Network Reliability from network, equipment, technology, the comprehensive analysis in four aspects of management, power supply reliability is carried out to classification, according to power distribution network development level situation, draw different stage reliability measure for improvement, avoid the uncertainty of research range in prior art, reached the object of saving the energy, mentioning operation of power networks efficiency.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the multistage reliability method for improving of the power distribution network of the distributed power source described in embodiment of the present invention process flow diagram;
Fig. 2 is the multistage reliability method for improving of the power distribution network of the distributed power source described in embodiment of the present invention process of establishing process flow diagram.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As shown in Figure 1 and Figure 2, a kind of multistage reliability method for improving of power distribution network containing distributed power source, comprises the following steps:
Step 1, gathers containing distributed power source supplying power allocation reliability and the average power off time of user;
Step 2, according to power supply reliability and the average power off time of user electrical network is carried out to grade classification, power supply reliability is greater than to 99.980%, average power off time is less than the power distribution network of 1.8 hours and is defined as electric network composition mature period; Power supply reliability is greater than to 99.9100%, and average power off time is less than 8 hours and is defined as electric network composition development time; Power supply reliability is greater than to 99.8300%, and average power off time is less than 15 hours and is defined as electric network composition builds period;
Step 3, for above-mentioned three kinds of different electric network composition grades, improves respectively network, equipment, technology, management aspect lifting electric network reliability.
Wherein, gather containing distributed power source supplying power allocation reliability and the average power off time of user and gather following data:
The average power off time of power failure range, frequency of power cut and single.
Raising network, equipment, technology, management specifically comprise:
Network facet: the trunk looped network rate that improves pressure network in electrical network makes satisfied the turning of circuit supply to require with the network of making rational planning for;
Equipment aspect: improve the quality of power distribution equipment and strengthen circuit insulating rate etc., adopting and exempt from dimension equipment, comprising distributed power source access device;
Technical elements: carry out uninterrupted operation and Distribution Automation Technology, shorten power off time, regional area guarantees that from network operation power supply user normally uses by distributed power source;
Management aspect: the reliability management system of Erecting and improving, give full play to the synergism of reliability information, strengthen site work management level, the power failure schedule work of strengthening comprehension management, implements the performance appraisal system of power supply reliability work.
In electrical network, the lifting of network, equipment, technology, management has following constraint condition:
Described power distribution network meets radiativity and connectivity platform; Voltage-drop is limited in
Burden requirement, AP=D, wherein A is node incidence matrix, and P is network trend, and D is workload demand;
Line Flow restriction, Pi≤Pimax, wherein Pi is Branch Power Flow, Pimax is the maximum permission capacity of branch road.
1, classification foundation wherein:
Reliability Measures is classified according to network, equipment, technology and management four aspects, is mainly that the average power off time of scope, number of times and single having a power failure from impact is analyzed.
Power failure range: increase line sectionalizing, increase branch switch, make to turn power supply more reasonable, these all need to possess perfect rack, and this belongs to the measure of network facet.
Frequency of power cut: change old equipment; Improve the quality of products, adopt the dimension equipment of exempting from; Improve network insulation rate and cable rate; The anti-damage to crops caused by thunder ability of reinforcement equipment, this all belongs to the measure of equipment aspect.
The average power off time of single: adopt the advanced diagnostic techniques that detects, improve hot line job enforcement rate; Implement distribution automation; Be equipped with advanced power tool; Promote equipment state overhauling technology, this overwhelming majority is the measure that belongs to technical elements.
Be finally managerial measure, good management relates in whole reliability Work, no matter is to dwindle power failure range, still reduces frequency of power cut or reduces the average power off time of single, and the lifting of management level can effectively improve.
2, measure classification
Reliability measure for improvement, proposes i.e. network, equipment, technology and management from four aspects of present situation electrical network analysis.
Network facet: in raising, the trunk looped network rate of pressure network meets circuit can to turn confession to require with the network of making rational planning for substantially.
Equipment aspect: improve the quality of power distribution equipment and strengthen circuit insulating rate etc., adopting as far as possible and exempt from (lacking) dimension equipment, comprising distributed power source access device.
Technical elements: carry out uninterrupted operation and Distribution Automation Technology, shorten power off time, regional area can guarantee that from network operation power supply user normally uses by distributed power source.
Management aspect: the further reliability management system of Erecting and improving, give full play to the synergism of reliability information, strengthen site work management level, the power failure schedule work of strengthening comprehension management, implements the performance appraisal system of power supply reliability work.
In addition, the difference at user's lateral root according to user's request, formulates different scheme and standard from Planning Standard, power grid construction to logistics management, site operation in zones of different, and this has also affected power supply reliability to a certain extent.
Analyze containing distributed power source Reliability of Power Supplying Net Work level, first in capital construction, to constantly improve electric network composition, standardization, non-maintaining equipment and the equipment of anti-disaster will constantly be increased input, improve distribution automation technical merit and promote uninterrupted operation technology, strengthen the management of whole electrical network, progressively promote the power supply reliability of electrical network.Comprehensive various places power grid construction situation and reliability level, determine that the grade scale of reliability and hierarchical objectives are as shown in the table.
Table 1, containing the multistage power supply reliability target of the different power distribution network development leveies of distributed power source:
。
Show 2a, contain the multistage reliability Promotion Strategy under the different power distribution network development leveies of distributed power source:
Show 2b, contain the multistage reliability Promotion Strategy under the different power distribution network development leveies of distributed power source:
。
Technical solution of the present invention also has the following advantages in sum:
1, propose the measure containing the distribution network reliability development of distributed power source, and set up containing the multistage reliability Promotion Strategy of distributed power source distribution framework, flow process is complete.
2,, due to basic electrical network condition difference, according to different present situation electrical networks, to promoting grade containing the different reliabilities of the different electrical network horizontal division of distributed power source, propose pointed electric network reliability target setting and reliability development strategy and formulate.
3, be conducive to build containing the reliability high-efficiency and economic transformation of distributed power source distribution according to pointed reliability Promotion Strategy.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. containing the multistage reliability method for improving of power distribution network of distributed power source, it is characterized in that, comprise the following steps:
Step 1, gathers containing distributed power source supplying power allocation reliability and the average power off time of user;
Step 2, according to power supply reliability and the average power off time of user electrical network is carried out to grade classification, power supply reliability is greater than to 99.980%, average power off time is less than the power distribution network of 1.8 hours and is defined as electric network composition mature period; Power supply reliability is greater than to 99.9100%, and average power off time is less than 8 hours and is defined as electric network composition development time; Power supply reliability is greater than to 99.8300%, and average power off time is less than 15 hours and is defined as electric network composition builds period;
Step 3, for above-mentioned three kinds of different electric network composition grades, improves respectively network, equipment, technology, management aspect lifting electric network reliability.
2. the multistage reliability method for improving of power distribution network containing distributed power source according to claim 1, is characterized in that, described collection gathers following data containing distributed power source supplying power allocation reliability and the average power off time of user:
The average power off time of power failure range, frequency of power cut and single.
3. the multistage reliability method for improving of power distribution network containing distributed power source according to claim 1 and 2, is characterized in that, described raising network, equipment, technology, management specifically comprise:
Described network facet: the trunk looped network rate that improves pressure network in electrical network makes satisfied the turning of circuit supply to require with the network of making rational planning for;
Described equipment aspect: improve the quality of power distribution equipment and strengthen circuit insulating rate etc., adopting and exempt from dimension equipment, comprising distributed power source access device;
Described technical elements: carry out uninterrupted operation and Distribution Automation Technology, shorten power off time, regional area guarantees that from network operation power supply user normally uses by distributed power source;
Described management aspect: the reliability management system of Erecting and improving, give full play to the synergism of reliability information, strengthen site work management level, the power failure schedule work of strengthening comprehension management, implements the performance appraisal system of power supply reliability work.
4. the multistage reliability method for improving of power distribution network containing distributed power source according to claim 3, is characterized in that, in described electrical network, the lifting of network, equipment, technology, management has following constraint condition:
Described power distribution network meets radiativity and connectivity platform; Voltage-drop is limited in
Burden requirement, AP=D, wherein A is node incidence matrix, and P is network trend, and D is workload demand;
Line Flow restriction, Pi≤Pimax, wherein Pi is Branch Power Flow, Pimax is the maximum permission capacity of branch road.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104537569A (en) * | 2014-10-31 | 2015-04-22 | 国家电网公司 | A method for improving power supply reliability |
| CN105868851A (en) * | 2016-05-05 | 2016-08-17 | 国网上海市电力公司 | Method for optimizing urban power grid structure based on absolute reliability assessment |
| CN109687590A (en) * | 2019-01-29 | 2019-04-26 | 国网湖南省电力有限公司 | A kind of be classified stops send a telegram in reply report method, system |
| CN111342455A (en) * | 2020-03-17 | 2020-06-26 | 云南电网有限责任公司迪庆供电局 | Method for switching 10kV line ring network into power supply |
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| CN103226661A (en) * | 2013-04-24 | 2013-07-31 | 国家电网公司 | Computer assessment method of reliability requirement of power consumer in marketing environment |
| CN103324840A (en) * | 2013-06-06 | 2013-09-25 | 江苏大学 | Power utilization quality comprehensive evaluation method for power demand side |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102270259A (en) * | 2011-07-25 | 2011-12-07 | 中国电力科学研究院 | Planning method based on reliability and economical efficiency and adaptive to different stages of power grid construction |
| CN103226661A (en) * | 2013-04-24 | 2013-07-31 | 国家电网公司 | Computer assessment method of reliability requirement of power consumer in marketing environment |
| CN103324840A (en) * | 2013-06-06 | 2013-09-25 | 江苏大学 | Power utilization quality comprehensive evaluation method for power demand side |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104537569A (en) * | 2014-10-31 | 2015-04-22 | 国家电网公司 | A method for improving power supply reliability |
| CN105868851A (en) * | 2016-05-05 | 2016-08-17 | 国网上海市电力公司 | Method for optimizing urban power grid structure based on absolute reliability assessment |
| CN109687590A (en) * | 2019-01-29 | 2019-04-26 | 国网湖南省电力有限公司 | A kind of be classified stops send a telegram in reply report method, system |
| CN109687590B (en) * | 2019-01-29 | 2022-05-24 | 国网湖南省电力有限公司 | Grading outage and restoration reporting method and system |
| CN111342455A (en) * | 2020-03-17 | 2020-06-26 | 云南电网有限责任公司迪庆供电局 | Method for switching 10kV line ring network into power supply |
| CN111342455B (en) * | 2020-03-17 | 2023-07-28 | 云南电网有限责任公司迪庆供电局 | Method for converting 10kV line ring network into power supply |
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Application publication date: 20140514 |