CN104880601A - Low-voltage user low voltage investigation method based on normal distribution statistics - Google Patents
Low-voltage user low voltage investigation method based on normal distribution statistics Download PDFInfo
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Abstract
The invention relates to a low voltage investigation method, in particular to a low-voltage user low voltage investigation method based on normal distribution statistics. At present, low-voltage users are distributed at the tail end of a power distribution network and are numerous, the prior art is lack of low-voltage user voltage monitoring methods and has the problems of a large number of monitoring points and tremendous cost when installing voltage monitoring instruments. The low-voltage user low voltage investigation method comprises the steps of: carrying out voltage interrogation for some users in a selected area in a low-voltage user comprehensive investigation step; analyzing the interrogation results, and listing the low-voltage users as objects of low-voltage governance; judging whether all areas are selected, and returning to the area selecting step if not all the areas are selected; and finishing the investigation if all the areas are selected. The technical scheme is high in investigation efficiency, can deal with the low-voltage users timely to obtain corresponding solutions, is fast in low-voltage user low voltage investigation, is timely in governance, improves power supply quality, shortens failure outage time, and guarantees production and living electricity utilization for people.
Description
Technical field
the present invention relates to a kind of low-voltage arrange distinguish method, espespecially a kind of low-voltage customer low-voltage arrange distinguish method based on normal distribution statistical.
Background technology
low-voltage customer is distributed in power distribution network end, One's name is legion, low-voltage customer voltage monitoring means are deficient, comparatively effective low voltage monitoring means install voltage monitoring instrument at present, but it is many to there is monitoring point quantity equally, cost is huge, and produce little effect when current quality of voltage is generally higher, another kind of approach becomes monitoring terminal monitoring substation transformer low-pressure side low-pressure line-outgoing voltage according to public affairs, although there is certain reference significance, but still the long low tension loop end low-voltage customer voltage of radius of electricity supply cannot be monitored.
Summary of the invention
the technical assignment of the technical problem to be solved in the present invention and proposition carries out improving to prior art and improves, a kind of low-voltage customer low-voltage arrange distinguish method based on normal distribution statistical is provided, reach low-voltage customer low-voltage analysis investigation, timely improvement, improve power supply quality, reduce the fault outage time, ensure the object of people's productive life electricity consumption.For this reason, the present invention takes following technical scheme.
based on a low-voltage customer low-voltage arrange distinguish method for normal distribution statistical, it is characterized in that comprising the following steps:
1) low-voltage user investigates step comprehensively, carries out comprehensive voltage and calls survey together, find out the user of low-voltage to all low-voltage customers;
2) cull board district step, every a period of time selects the last selected Guo Tai district of a part, the platform district selected comprises carrier communication picking platform district and wireless collection device picking platform district, and carrier communication picking platform district and wireless collection device picking platform district quantity are distributed by accounting; Cull board district meets the following conditions: A) public affairs in platform district become the voltage that three-phase voltage occurs lower than 224v in peak Elapsed Time section; B) platform district is when low-voltage customer investigates step comprehensively, occurs low-voltage user; C) as eligible A) and platform district quantity B) is less than setting value time, random choose platform district;
3) voltage is carried out to the certain customers under selected platform district and call survey together, the user calling survey by voltage together comprises terminal temperature difference, if selected platform district exists the user that low-voltage user investigates the low-voltage found out in step comprehensively, the user calling survey by voltage together also comprises the one or more of the user of above-mentioned low-voltage;
4) analyzing calling survey result together, the low-voltage customer of low-voltage being classified as the object that low-voltage is administered;
5) judge whether that all districts are all selected, if do not select complete, be then back to 2) cull board district step; If select complete, then terminate.
cull board district is using condition A), B) as prioritizing selection condition, preferred process low-voltage user, to complete the task of selecting in time, accurately, reliably; Improve the efficiency of investigation.Stochastic choice mode is then adopted for the platform district without low-voltage user select, be conducive to increasing work efficiency.The technical program after investigating comprehensively, the voltage of the certain customers in Zai Jinggetai district calls survey together, the electricity consumption situation of the low electric user under this district of basic acquisition, to low-voltage, user processes, and to obtain corresponding solution, reaches low-voltage customer low-voltage analysis investigation, timely improvement, improve power supply quality, reduce the fault outage time, ensure the object of people's productive life electricity consumption.
as improving further and supplementing technique scheme, the present invention also comprises following additional technical feature.
2) in cull board district step, using one week as the time cycle.
select the platform district of 4-6% on every Sundays.The detection in all districts can be completed in one-year age.
in step 3), if selected platform district is wireless collection device picking platform district, then select 1-5 terminal temperature difference, random user in wireless collection device picking platform district, if this wireless collection platform district exists low-voltage user, then the user selected in wireless collection device picking platform district also comprises a low-voltage customer; If the three-phase power user of low-voltage appearred last month in this wireless collection platform district, then the user selected in wireless collection device picking platform district also comprised the three-phase power user of low-voltage.Because three-phase power user is little relative to general user's quantity, but power consumption is high, therefore needs investigation emphatically; Terminal temperature difference can the electric power thus supplied in this district of fundamental reaction, thus need to carry out voltage to terminal temperature difference call survey together, the object that the technical program calls survey together is few, is conducive to the process of data, improves the efficiency of process.
in step 3), if selected platform district is carrier communication picking platform district, then select a terminal temperature difference in carrier communication picking platform district; If this carrier communication picking platform district exists low-voltage user, then the user selected in carrier communication picking platform district also comprises a low-voltage customer.The technical program only selects a terminal temperature difference and a low-voltage customer to call survey object together as voltage in carrier communication picking platform district, improves the efficiency of process, reduces costs, and can achieve the goal again simultaneously.
4) carry out in analytical procedure to calling survey result together, low-voltage user may be had to produce under judging whether the platform district selected, and by analysis result store feedback.
beneficial effect: the technical program is after comprehensive low-voltage investigation, the voltage of the certain customers in Zai Jinggetai district calls survey together, the electricity consumption situation of the low-voltage customer under this district of basic acquisition, investigation efficiency is high, can process low-voltage user in time, to obtain corresponding solution, low-voltage customer low-voltage analysis investigation is fast, administers in time, improves power supply quality, reduce the fault outage time, ensure the electricity consumption of people's productive life.
Accompanying drawing explanation
fig. 1 is process flow diagram of the present invention.
Embodiment
below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
the implementation step of the method is illustrated for Zhejiang Province.As shown in Figure 1,
the present invention includes following steps:
s1) comprehensive voltage is carried out to all low-voltage customers of the whole province and call survey together, find out the user of low-voltage.Zhejiang has 2,200 ten thousand family low-voltage customers, and therefore this operation consumption of natural resource is too large, but only operates once in whole process, and with regard to a whole flow process, the resource consumed and the time of consumption are also few.
s 2) follow-up select on every Sundays 5% platform district, wherein carrier communication picking platform district 2%, wireless collection device picking platform district 3%, and distributing by the platform district quantity accounting of 11 districts and cities in Zhejiang.The platform district selected one of meets the following conditions:
1, the public three-phase voltage that becomes occurred below 224V's when 19 of every day this week;
2, call the Gong Biantai district once occurring low-voltage user in survey process together comprehensively.
3, through above 2 conditions still discontented 5% then carry out random selection, but do not comprise and selected Guo Tai district the current year.
s 3) voltage is carried out to the selected certain user that will carry out under voltage Zhao Cetai district call survey together, the user selected meets the following conditions:
1, carrier communication picking platform district selects 1 terminal temperature difference and 1 low-voltage user (once comprehensively calling the low-voltage user found in survey process together).
2, wireless collection device picking platform district selects 1-5 terminal temperature difference: 1 low-voltage user (if in some situations), the three-phase power user occurring low-voltage last month, 2 family random users, selects at most a family under guaranteeing a wireless collection device.
s 4) analyze calling survey result together, there is the low-voltage customer of low-voltage will be listed in the object of low-voltage improvement.
enforcement in order to low-voltage customer low-voltage arrange distinguish method creates low-voltage customer low-voltage Check System, this system comprises platform district investigation analysis module and user selects module, whether platform district investigation analysis module is used for analyzing may have low-voltage user to produce under this district, and user, under selecting module to be used for selecting platform district, low-voltage user likely occurs.
the citing of low-voltage investigation:
1, simulate several low-voltage customer, three-phase power user once occurred low-voltage, this low-voltage user and platform district, three-phase power user place are classified as low-voltage and wait to investigate platform district by platform district analysis module; Customer analysis module chooses this user, and random several low-voltage user of increasing investigates user as waiting.
2, simulation is called together and is surveyed random user under low-voltage user and this district, and when occurring low-voltage numerical value, analysis result shows this district and needs to carry out low-voltage improvement.
3, simulation is called together and is surveyed random user under low-voltage user and this district, and when not occurring low-voltage numerical value, analysis result shows this district current year without the need to carrying out low-voltage improvement.
a kind of low-voltage customer low-voltage arrange distinguish method based on normal distribution statistical shown in above Fig. 1 is specific embodiments of the invention; substantive distinguishing features of the present invention and progress are embodied; can according to the use needs of reality; under enlightenment of the present invention; it is carried out to the equivalent modifications of the aspect such as shape, structure, all at the row of the protection domain of this programme.
Claims (6)
1., based on a low-voltage customer low-voltage arrange distinguish method for normal distribution statistical, it is characterized in that comprising the following steps:
1) low-voltage user investigates step comprehensively, carries out comprehensive voltage and calls survey together, find out the user of low-voltage to all low-voltage customers;
2) cull board district step, every a period of time selects the last selected Guo Tai district of a part, the platform district selected comprises carrier communication picking platform district and wireless collection device picking platform district, and carrier communication picking platform district and wireless collection device picking platform district quantity are distributed by accounting; Cull board district meets the following conditions: A) public affairs in platform district become the voltage that three-phase voltage occurs lower than 224V in peak Elapsed Time section; B) platform district is when low-voltage customer investigates step comprehensively, occurs low-voltage user; C) as eligible A) and platform district quantity B) is less than setting value time, random choose platform district;
3) voltage is carried out to the certain customers under selected platform district and call survey together, the user calling survey by voltage together comprises terminal temperature difference, if selected platform district exists the user that low-voltage user investigates the low-voltage found out in step comprehensively, the user calling survey by voltage together also comprises the one or more of the user of above-mentioned low-voltage;
4) analyzing calling survey result together, the low-voltage customer of low-voltage being classified as the object that low-voltage is administered;
5) judge whether that all districts are all selected, if do not select complete, be then back to 2) cull board district step; If select complete, then terminate.
2. a kind of low-voltage customer low-voltage arrange distinguish method based on normal distribution statistical according to claim 1, is characterized in that: 2) in cull board district step, using one week as a period of time.
3. a kind of low-voltage customer low-voltage arrange distinguish method based on normal distribution statistical according to claim 1, is characterized in that: the platform district selecting 4-6% on every Sundays.
4. a kind of low-voltage customer low-voltage arrange distinguish method based on normal distribution statistical according to claim 1, it is characterized in that: in step 3), if selected platform district is wireless collection device picking platform district, then select 1-5 terminal temperature difference, random user in wireless collection device picking platform district, if this wireless collection platform district exists low-voltage user, then the user selected in wireless collection device picking platform district also comprises a low-voltage customer; If the three-phase power user of low-voltage appearred last month in this wireless collection platform district, then the user selected in wireless collection device picking platform district also comprised the three-phase power user of low-voltage.
5. a kind of low-voltage customer low-voltage arrange distinguish method based on normal distribution statistical according to claim 1, is characterized in that: in step 3), if selected platform district is carrier communication picking platform district, then selects a terminal temperature difference in carrier communication picking platform district; If this carrier communication picking platform district exists low-voltage user, then the user selected in carrier communication picking platform district also comprises a low-voltage customer.
6. a kind of low-voltage customer low-voltage arrange distinguish method based on normal distribution statistical according to claim 1, it is characterized in that: 4) carry out in analytical procedure to calling survey result together, low-voltage user may be had to produce under judging whether the platform district selected, and by analysis result store feedback.
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Cited By (5)
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| CN105678644A (en) * | 2016-03-14 | 2016-06-15 | 国网安徽省电力公司 | User low-voltage studying and determining method based on data collection |
| CN109449932A (en) * | 2018-12-07 | 2019-03-08 | 国网辽宁省电力有限公司鞍山供电公司 | It is a kind of based on voltage synchronous test low-voltage reforming mode determine method |
| CN110335169A (en) * | 2019-05-23 | 2019-10-15 | 广西电网有限责任公司 | A method of the low-voltage user based on multisource data fusion accurately identifies |
| CN111398859A (en) * | 2020-03-17 | 2020-07-10 | 国网江西省电力有限公司电力科学研究院 | User low-voltage cause big data analysis method and system |
| CN113267349A (en) * | 2021-05-25 | 2021-08-17 | 安徽合力股份有限公司 | Method for rapidly testing downward sliding amount of forklift gantry |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111398859A (en) * | 2020-03-17 | 2020-07-10 | 国网江西省电力有限公司电力科学研究院 | User low-voltage cause big data analysis method and system |
| CN113267349A (en) * | 2021-05-25 | 2021-08-17 | 安徽合力股份有限公司 | Method for rapidly testing downward sliding amount of forklift gantry |
| CN113267349B (en) * | 2021-05-25 | 2022-03-25 | 安徽合力股份有限公司 | Method for rapidly testing downward sliding amount of forklift gantry |
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