CN102709905B - Power supply reliability automatic calculation and analysis device and method for low-voltage distribution network - Google Patents
Power supply reliability automatic calculation and analysis device and method for low-voltage distribution network Download PDFInfo
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Abstract
The invention discloses a power supply reliability automatic calculation and analysis device and method for a low-voltage distribution network. An intelligent residual current action protector is used for monitoring and uploading data of trip shutting time, closing time, power losing time and power supply recovering time of low-voltage users in a real-time manner, reporting warning information to a server network and finally storing in a fundamental database of a reliability analysis system for the low-voltage distribution network of a server of a country bureau monitoring center, a monitoring terminal is used for inputting the data of the low-voltage users and power failure events of single-household or multi-household overhaul, temporariness and emergency repairing and storing in the fundamental database of the reliability analysis system of the low-voltage distribution network, and the server of the country bureau monitoring center is used for processing and analyzing input data and finally displaying on the monitoring terminal. The invention establishes a set of power supply reliability analysis system for the low-voltage distribution network with real-time automatic calculation of power supply reliability of the low-voltage distribution network, so that the problems of difficult and trivial mathematical statistics of the power supply reliability of the low-voltage distribution network can be solved, and simultaneously the accuracy of the power supply reliability of the low-voltage distribution network is improved.
Description
Technical field
The present invention relates to a kind of automatic computational analysis method of low-voltage distribution network power supply reliability and device.
Background technology
Will accurately calculate low-voltage customer power supply reliability, key is to have interruption duration, frequency of power cut, power failure amount accurately.And existing these data need, manually from reporting record for repairment, stopping power transmission operation order, work ticket etc. to add up after extraction again, so not only be worked loaded down with trivial details, and make statistics not comprehensive entirely, reduce the accuracy of power supply reliability.
Summary of the invention
Technical problem to be solved by this invention is just to provide the automatic computational analysis device and method of a kind of low-voltage distribution network power supply reliability, set up a set of low-voltage distribution network power supply reliability analytical system of automatically calculating in real time with low-voltage distribution network power supply reliability, solve low-voltage distribution network power supply reliability mathematical statistics difficulty, loaded down with trivial details problem, improve the accuracy rate of low-voltage distribution network power supply reliability simultaneously.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: the automatic computational analysis device of a kind of low-voltage distribution network power supply reliability, comprise the low-voltage distribution network of low-voltage supply line and distribution transforming equipment composition, it is characterized in that: on described low-voltage supply line leading-out terminal, intelligent residual current action protector and A.C. contactor are installed, intelligent residual current action protector is connected with A.C. contactor simultaneously, control of intelligent terminal access low-voltage distribution network is also connected by 485 connections with described intelligent residual current action protector, control of intelligent terminal accesses the GPRS of company of province wireless network platform server simultaneously, the server network of office of city server and county telephone central office's monitoring central server composition, county telephone central office's monitoring central server network connects at least one monitor terminal, wherein intelligent residual current action protector Real-Time Monitoring and upload low-voltage customer tripping operation blocking time, closing time, the dead electricity time, the data report and alarm information to the server network that recover electric power feeding time are finally stored in the analytical system basic database of low-voltage distribution network reliability of county telephone central office's monitoring central server, monitor terminal is inputted low-voltage customer data automatically, single household or the maintenance of many families, the power-off event of interim and repairing is also stored in the analytical system basic database of low-voltage distribution network reliability, county telephone central office's monitoring central server is carried out the data of input Treatment Analysis and finally on monitor terminal, shows.
Preferably, described low voltage electric network is 0.4kV low-voltage distribution network.
The present invention also provides above-mentioned low-voltage distribution network power supply reliability automatic computational analysis method, it is characterized in that: comprise the following steps:
Step 0: intelligent residual current action protector Real-Time Monitoring tripping operation blocking time, closing time, dead electricity time, recover the related data of electric power feeding time, and result is saved in to the analytical system basic database of low-voltage distribution network reliability;
Step 1: derive the low-voltage customer data of excel from Electric Power Marketing System, then import to the analytical system basic database of low-voltage distribution network reliability at monitor terminal by excel;
Step 2: automatically gather basic user data, and be saved in the analytical system basic database analytical table of low-voltage distribution network reliability by platform differentiation line;
Step 3: intellectual analysis and automatic computational intelligence RCD report and alarm information, and be always saved in analytical table by the platform differentiation congruence;
Step 4: adopt manual typing mode to deposit analytical table at monitor terminal the maintenance of single household or many families, power-off event interim and repairing, screen statistics as power failure plan factor;
Step 5: county telephone central office's monitoring central server is calculated automatically and line low-voltage distribution network power supply reliability is distinguished in the appearance of comparison statistics, and is saved in the analytical system basic database of low-voltage distribution network reliability;
Step 6: according to uploading data per hour every day, county telephone central office's monitoring central server is presented at analysis result on monitor terminal;
Step 7: county telephone central office's monitoring central server counts reliability monthly magazine and reliability monthly magazine is compared and analyzed, and demonstrates desired value wave phenomenon on monitor terminal.
The present invention utilizes intelligent residual current action protector to monitor in real time tripping operation blocking time, closing time, dead electricity time, recovery electric power feeding time etc. and automatically uploads alarm data; set up a set of low-voltage distribution network power supply reliability analytical system of automatically calculating in real time with low-voltage distribution network power supply reliability; solve low-voltage distribution network power supply reliability mathematical statistics difficulty, loaded down with trivial details problem, improved the accuracy rate of low-voltage distribution network power supply reliability simultaneously.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is according to system construction drawing of the present invention.
Embodiment
In conjunction with Fig. 1 system construction drawing of the present invention, the present invention is illustrated, the present invention mainly distinguishes line power supply reliability as research object take 0.4kV low-voltage distribution network statistics platform, set up a set of low-voltage distribution network power supply reliability analytical system with low-voltage distribution network power supply reliability real-time statistics, 0.4kV low-voltage distribution network power supply reliability is monitored, and by utilizing intelligent residual current action protector Real-Time Monitoring tripping operation blocking time, closing time, the dead electricity time, recover the auto-alarming information of electric power feeding time, low-voltage customer data, equivalence amount, low-voltage distribution network power supply reliability is calculated and analyzed to the factors such as the power-off event at single household or many families automatically, carry out monitoring and the management of low-voltage distribution network power supply reliability applicable to County Power Plant, thereby formulate targetedly raising county telephone central office power supply reliability index scientific basis is provided.
This covering device comprises intelligent residual current action protector 100, A.C. contactor 101, control of intelligent terminal 104, the GPRS of company of province wireless network platform server 105, office of city server 106, county telephone central office's monitoring central server 107, monitor terminal 108.
1. the A/B/C three-phase electricity flow valuve of collecting low-pressure line-outgoing at the next 20cm of the ac contactor contact place of this covering device installing integral type current transformer 102;
2. installing zero-sequence transformer 103 in the next 10cm of current transformer place gathers leakage current value;
3. collect intelligent residual current action protector 100 running state data, three-phase electricity flow valuve, leakage current value, fault message, divide (closing) lock information, interruption duration, recovering the critical data such as electric power feeding time reaches control of intelligent terminal 104 by RS485 interface and collects data and be saved in memory, then by the GRPS device of this terminal, data are passed to the GPRS of company of province wireless network platform server 105 through wireless public network, carry out data filtering, pass to office of city server 106 through Intranet passage, office of Zai You city reaches county telephone central office's monitoring central server 107, be arranged on the front end processor software of this server by data receiver, after screening, dump in SQL Server 2000 databases, then the intelligent residual current action protector of exploitation and low-voltage distribution network reliability management of power supply system.Through WEB server release process group, for being connected to interior online any monitor terminal 108.Sending remote control, remote measurement, remote signalling instruction Long-distance Control intelligent residual current action protector 100 data by system transfers away to upper contrary.
Automatic calculating method: the automatic computational analysis method of low-voltage distribution network power supply reliability is to utilize intelligent residual current action protector opening time, closing time, uploading data and the intelligent residual current action protector of dead electricity time and recovery electric power feeding time are stopped using, enable classification, and according to " low-voltage distribution network customer power supply system elemental user information table " in management system, " low-voltage distribution network customer power supply system basic condition statistical form ", " low-voltage distribution network power supply reliability week power failure planning chart " and " the actual power cut record table of low-voltage distribution network power supply reliability " basic data, realize the automatic statistics of low-voltage distribution network power supply reliability index, accomplishing has monitor data every day, monthly automatically generate by " low-voltage distribution network electric power system reliability operation situation statistical form " and " low-voltage distribution network power supply reliability form ".
Method of the present invention comprises the following steps:
Step 0: automatically gather intelligent residual current action protector Real-Time Monitoring tripping operation blocking time, closing time, dead electricity time, recover the related data of electric power feeding time, and result is saved in to database;
Step 1: derive the low-voltage customer data of excel from Electric Power Marketing System, then import to the analytical system basic database of low-voltage distribution network reliability by excel;
Step 2: automatically gather basic user data, and be saved in this table by platform differentiation line;
Step 3: intellectual analysis and automatic computational intelligence RCD report and alarm information, and be always saved in this table by the platform differentiation congruence;
Step 4: adopt manual typing mode to deposit this table in the maintenance of single household or many families, power-off event interim and repairing, screen statistics as power failure plan factor;
Step 5: analytical system is automatically calculated and compared reliability basic condition statistics (2), reliability operation situation statistics (3) and have a power failure and plans data in (4) table, repeating part, be as the criterion with reliability operation situation statistics (3) data, statistics is put into effect and is distinguished line low-voltage distribution network power supply reliability, and is saved in database;
Step 6: according to uploading data per hour every day, analytical system represents with curve, being curve and the data of control and monitor console district intelligent residual current action protector at of that month power-off event, is the basic data that analysis station is distinguished line power supply reliability, plays check and correction, examines, comparison effect;
Step 7: reliability monthly magazine (5) index of correlation data conversion storage, to this table, is loaded to the data value that hits the target last month simultaneously, compare and analyze, prompting desired value wave phenomenon.
The present invention utilizes the tripping operation blocking time of earth leakage protective device Real-Time Monitoring, closing time, the dead electricity time, recover electric power feeding time and the low-voltage customer information of Electric Power Marketing System and the week power failure planning data bag of risk management and control system and reach analysis system server, complete a series of data selectings by analysis system server, automatic analysis, sort out statistics and process, finally set up a set of low-voltage distribution network power supply reliability analytical system of automatically calculating in real time with low-voltage distribution network power supply reliability, solve low-voltage distribution network power supply reliability mathematical statistics difficulty, loaded down with trivial details problem, improve the accuracy rate of low-voltage distribution network power supply reliability simultaneously.
The automatic analysis selection principle of low-voltage distribution network power supply reliability analytical system has following 3:
1, the recovery power transmission that earth leakage protective device is uploaded and the actual interruption duration of dead electricity time difference and all power failure plans match, and analytical system is by the information recording of automatically deleting earth leakage protective device and uploading;
2, earth leakage protective device is uploaded information and all power failure plans to upload information comparing result is no, and that analytical system extracts dead electricity that earth leakage protective device uploads automatically, recover electric power feeding time counts in analytical table;
3, earth leakage protective device is uploaded tripping operation locking and closing time data all count in analytical table.
The automatic analysis of low-voltage distribution network power supply reliability analytical system calculates principle following 3:
1, the power-off event that all power failure plans are uploaded is distribution transforming interruption maintenance, and that just includes all users under this distribution transforming in scope of statistics;
2, the power-off event that all power failure plans are uploaded is single household or many families interruption maintenance, and that just includes the user who participates in maintenance under this distribution transforming in scope of statistics;
3, in analytical table, be that the information uploaded of earth leakage protective device participates in calculating, that is exactly that the low-voltage customer that accesses under this earth leakage protective device of this distribution transforming all participates in calculating.
The above power, for the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (1)
1. the automatic computational analysis method of low-voltage distribution network power supply reliability, is characterized in that: comprise the following steps:
Step 0: intelligent residual current action protector Real-Time Monitoring tripping operation blocking time, closing time, dead electricity time, recover the related data of electric power feeding time, and result is saved in to the analytical system basic database of low-voltage distribution network reliability;
Step 1: derive the low-voltage customer data of excel from Electric Power Marketing System, then import to the analytical system basic database of low-voltage distribution network reliability at monitor terminal by excel;
Step 2: automatically gather basic user data, and be saved in the analytical system basic database analytical table of low-voltage distribution network reliability by platform differentiation line;
Step 3: intellectual analysis and automatic computational intelligence RCD report and alarm information, and be always saved in analytical table by the platform differentiation congruence;
Step 4: adopt manual typing mode to deposit analytical table at monitor terminal the maintenance of single household or many families, power-off event interim and repairing, screen statistics as power failure plan factor;
Step 5: county telephone central office's monitoring central server is calculated automatically and line low-voltage distribution network power supply reliability is distinguished in the appearance of comparison statistics, and is saved in the analytical system basic database of low-voltage distribution network reliability;
Step 6: according to uploading data per hour every day, county telephone central office's monitoring central server is presented at analysis result on monitor terminal;
Step 7: county telephone central office's monitoring central server counts reliability monthly magazine and reliability monthly magazine is compared and analyzed, and demonstrates desired value wave phenomenon on monitor terminal.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104657819A (en) * | 2015-02-04 | 2015-05-27 | 国家电网公司 | Management statistical method for user power supply reliability of power supply system |
| CN104881729A (en) * | 2015-04-23 | 2015-09-02 | 中国南方电网有限责任公司 | Electric power marketing system power failure information processing method, and electric power marketing system power failure information processing system |
| CN106228461B (en) * | 2016-06-28 | 2018-08-07 | 国家电网公司 | Low-voltage power supply reliability Accurate Analysis method and system based on Multi-data Source Mining |
| CN106532695A (en) * | 2016-12-21 | 2017-03-22 | 国网浙江省电力公司电力科学研究院 | Real-time analysis method for power supply reliability of 10KV distribution network |
| CN108229863B (en) * | 2018-03-01 | 2021-09-14 | 福建永福电力设计股份有限公司 | Power supply reliability calculation method for power distribution network |
| CN112330102A (en) * | 2020-10-20 | 2021-02-05 | 贵州电网有限责任公司 | Power supply reliability data analysis system |
| CN112734594A (en) * | 2020-12-29 | 2021-04-30 | 国网北京市电力公司 | Low-voltage user power supply reliability research system |
| CN112667673A (en) * | 2021-01-06 | 2021-04-16 | 云南电网有限责任公司信息中心 | Distribution network operation data monitoring method and device, computer equipment and storage medium |
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