CN104201669B - Based on the distribution junctor line loss statistical method of distribution special topic figure switch set - Google Patents
Based on the distribution junctor line loss statistical method of distribution special topic figure switch set Download PDFInfo
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- CN104201669B CN104201669B CN201410419605.4A CN201410419605A CN104201669B CN 104201669 B CN104201669 B CN 104201669B CN 201410419605 A CN201410419605 A CN 201410419605A CN 104201669 B CN104201669 B CN 104201669B
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Abstract
For meeting the requirement of middle voltage distribution networks junctor damage fine-grained management, the present invention proposes a kind of junctor damage statistical analysis technique based on distribution special topic figure switch set, it is achieved distribution contact circuit divides the object of line line loss statistical study. Taking distribution special topic figure, power network GIS platform and line loss management system of local electric network as supporting, divide time interval to add up several links by special topic figure switch set, GIS power network topology analysis, circuit line loss and complete contact circuit and divide line Controlling line loss. Following Advantageous Effects can be obtained: a point circuit line loss can be gone out by meticulousr geo-statistic by implementing the present invention.
Description
Technical field
The present invention relates to electricity field, a kind of distribution junctor line loss statistical method based on distribution special topic figure switch set of specific design.
Background technology
Divide line line loss especially 10kV feeder line line loss, it it is the link that distribution network electric quantity loss is maximum, it it is the emphasis of Controlling line loss work, for ensureing user power utilization reliability, the wiring mode of medium voltage distribution network and operation scheme become more and more complicated, trend towards many circuits gradually mutually to get in touch with, carry out ring network power supply pattern. In tradition line loss management work, owing to lacking interconnection switch state change information, for there being many feeder lines of communication relationship to it can be used as an examination unit packing to carry out line loss analyzing, a point requirement for circuit Controlling line loss examination cannot be met.
Summary of the invention
For meeting the requirement of middle voltage distribution networks junctor damage fine-grained management, the present invention proposes a kind of junctor damage statistical analysis technique based on distribution special topic figure switch set, it is achieved distribution contact circuit divides the object of line line loss statistical study. For this reason, the present invention is by the following technical solutions:
The present invention, based on the distribution junctor line loss statistical method of distribution special topic figure switch set, comprises the steps:
Special topic figure switch set: when needing line ball road running status in adjustment distribution, carries out switch set on distribution special topic figure, distribution special topic figure is consistent with on-the-spot circuit operation scheme, records the switch actual displacement time simultaneously.
Power network topology analysis: in the acquisition circuit line loss statistics cycle, distribution switch switch conjugates information, generates circuit with public change, the special connection relation become as the line loss calculation model after switch changed position by topological analysis.
Preferably, described switch switch displacement information switch mark, switch state and the switch changed position time.
Following Advantageous Effects can be obtained: divide time interval to add up several links by special topic figure switch set, power network topology analysis, circuit line loss and complete contact circuit and divide line line loss pipe add up, and then can go out to divide a circuit line loss by meticulousr geo-statistic by implementing the present invention.
Accompanying drawing explanation
Fig. 1 is the circuit 1 in embodiment 1 and the public connection graph of a relation becoming, specially becoming.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with specific embodiment, the present invention is further illustrated:
Based on the distribution junctor line loss statistical method of distribution special topic figure switch set, comprise the steps:
Special topic figure switch set: when line ball road running status occurs to adjust in distribution, carries out switch set on distribution special topic figure, distribution special topic figure is consistent with scene circuit operation scheme, records the switch actual displacement time simultaneously;
Power network topology analysis: obtain distribution switch switch displacement information in the circuit line loss statistics cycle, switch switch displacement information switch mark, switch state and switch changed position time, draw the line loss calculation model before and after switch changed position by the connection relation of topological analysis generation circuit with public change, specially change;
Circuit line loss divides time interval to add up: the time dividing point that the switch changed position time is changed by line loss management system of local electric network as line loss calculation model, according to the line loss statistical model before and after switch changed position, utilizes load integration, at times statistical line line loss.
Distribution special topic figure unifies based on electric network model by PMS, by the topology connectivity analyzed between electric installation, utilize distribution network automatically to become rule map, automatically generate the basic figure meeting production and dispatching requirement, comprise system diagram, switching station figure, service area figure, skeleton diagram.
Embodiment 1:
As shown in Figure 1, when, under normal operation, before namely in distribution, line ball road running status adjusts, switch 1, switch 2 close, and switch 3 disconnects; When needs transfer load, namely after in distribution, line ball road running status adjusts, switch 3 closes, switch 2 disconnects, the time period that adjustment does not occur is 0:00～15:00, the time period that adjustment occurs is 15:00～24:00, if to be calculated the line loss on circuit 1 same day, can calculate in the following manner.
First, when line ball road running status occurs to adjust in distribution, carry out switch set on distribution special topic figure, distribution special topic figure is consistent with scene circuit operation scheme, meanwhile, record switch actual displacement time t, t=15:00;
Then, obtain the line switch displacement information in distribution special topic figure, drawn by topological analysis, after switch changed position, (after 15:00), transformer A, B, C, D are all articulated in circuit 1 time, line loss calculation model after switch changed position is: circuit 1 line loss rate=(for entering electricity-confess electricity)/for entering electricity, and circuit 1 is confessed electricity=transformer A and confessed electricity+transformer B and confess electricity+transformer C and confess electricity+transformer D and confess electricity; And before switch changed position (before 15:00) only transformer A, B be articulated in circuit 1 time, and the line loss calculation model before switch changed position is: circuit 1 line loss rate=(for entering electricity-confess electricity)/for entering electricity; Electricity=transformer the A that confesses of circuit 1 confesses electricity+transformer B and confesses electricity.
Finally, carry out circuit line loss and divide time interval to add up, draw circuit 1 line loss rate.
Circuit 1 line loss rate=(for entering electricity-confess electricity)/for entering electricity;
Circuit 1 is for entering electricity=(circuit 1 24 degree of showing-circuit 10 degree of showing on the same day on the same day) × CT × PT;
Wherein PA、PB、PC、PDFor the power that transformer A, B, C, D are corresponding, DtFor the power-on time of equipment,For transformer A confesses electricity from 0:00 to 15:00,For transformer B confesses electricity from 0:00 to 15:00,For transformer C confesses electricity from 15:00 to 24:00,For transformer C confesses electricity from 15:00 to 24:00.If when checking meter electric current be through that CT conversion comes will × CT becomes ratio, voltage if convert through PT come will × PT becomes ratio, if not being, without the need to × CT or × PT.
The present invention taking distribution special topic figure, power network GIS platform and line loss management system of local electric network as supporting, can divide time interval to add up several links by special topic figure switch set, GIS power network topology analysis, circuit line loss and complete contact circuit and divide line Controlling line loss. In the production service needed adjustment distributions such as distribution transformation or load migration during the running status of line ball road, distribution special topic figure carries out switch set, distribution special topic figure is consistent with on-the-spot circuit operation scheme, record the switch actual displacement time simultaneously, after switch set completes, distribution special topic figure is fed back to production management system (PMS); In power network GIS platform distribution, line ball road topological analysis is served and is obtained distribution switch switch displacement information (comprising switch mark, switch state, switch changed position time) in the circuit line loss statistics cycle from production management system (PMS), is sent to line loss management system of local electric network by the connection relation of topological analysis generation circuit with public change, specially change as the line loss calculation model before and after switch changed position; The time dividing point that the switch changed position time is changed by line loss management system of local electric network as line loss calculation model, according to the line loss statistical model before and after switch changed position, utilizes load integration, statistical line line loss at times, adopt present method, relative usual way, a point circuit line loss can be gone out by meticulousr geo-statistic.
Following Advantageous Effects can be obtained: the statistics dividing time interval to add up several links and complete to get in touch with circuit and divide line line loss pipe by special topic figure switch set, power network topology analysis, circuit line loss by implementing the present invention, and then a point circuit line loss can be gone out by meticulousr geo-statistic, it is to increase the accuracy rate of line loss.
The foregoing is only specific embodiments of the invention, but the technology feature of the present invention is not limited thereto, the technician of any this area is in the field of the invention, and change or the modification done all are encompassed among the patent scope of the present invention.
Claims (2)
1. based on the distribution junctor line loss statistical method of distribution special topic figure switch set, it is characterised in that: comprise the steps:
Special topic figure switch set: when line ball road running status occurs to adjust in distribution, carries out switch set on distribution special topic figure, distribution special topic figure is consistent with scene circuit operation scheme, records the switch actual displacement time simultaneously;
Power network topology analysis: obtain distribution switch switch in the circuit line loss statistics cycle and conjugate information, generates circuit by topological analysis and public affairs become, the special connection relation become draws the line loss calculation model before and after switch changed position;
Circuit line loss divides time interval to add up: the time dividing point that the switch changed position time is changed by line loss management system of local electric network as line loss calculation model, according to the line loss statistical model before and after switch changed position, utilizes load integration, at times statistical line line loss.
2. as claimed in claim 1 based on the distribution junctor line loss statistical method of distribution special topic figure switch set, it is characterised in that: described switch switch displacement information switch mark, switch state and switch changed position time.
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| CN201410419605.4A CN104201669B (en) | 2014-08-22 | 2014-08-22 | Based on the distribution junctor line loss statistical method of distribution special topic figure switch set |
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| CN104573997B (en) * | 2015-01-30 | 2020-10-16 | 国家电网公司 | Distribution network mapping and thematic map application architecture design method |
| CN109214684A (en) * | 2018-09-06 | 2019-01-15 | 国网福建省电力有限公司电力科学研究院 | A kind of distribution line theory wire loss on-line calculation method |
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| US9847644B2 (en) * | 2010-02-09 | 2017-12-19 | Open Access Technology International, Inc. | Systems and methods for demand response and distributed energy resource management |
| CN102033999B (en) * | 2010-12-10 | 2012-10-17 | 天津天大求实电力新技术股份有限公司 | Load distribution based method for calculating recently planned annual line loss of medium-voltage distribution network |
| CN102928721A (en) * | 2012-11-14 | 2013-02-13 | 余姚市供电局 | Line loss concentrator |
| CN103559042B (en) * | 2013-11-20 | 2016-07-13 | 国家电网公司 | A kind of method setting up the Line Loss of Distribution Network System CIM based on IEC61970/61968 |
| CN103701214B (en) * | 2013-12-25 | 2016-06-22 | 国家电网公司 | Special transformer terminals for line loss monitoring system |
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Address after: 100045 West Chang'an Avenue, Beijing, No. 86, No. Patentee after: State Grid Corporation of China Patentee after: STATE GRID ZHEJIANG ELECTRIC POWER Co. Patentee after: ZHEJIANG HUAYUN INFORMATION TECHNOLOGY Co.,Ltd. Patentee after: ZHEJIANG ELECTRIC POWER ELECTRON TECHNOLOGY Co. Address before: 100045 West Chang'an Avenue, Beijing, No. 86, No. Patentee before: State Grid Corporation of China Patentee before: STATE GRID ZHEJIANG ELECTRIC POWER Co. Patentee before: ZHEJIANG CREAWAY AUTOMATION ENGINEERING Co.,Ltd. Patentee before: ZHEJIANG ELECTRIC POWER ELECTRON TECHNOLOGY Co. |
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