CN101741138A - Information remote monitoring and managing system of distribution transformer load - Google Patents
Information remote monitoring and managing system of distribution transformer load Download PDFInfo
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- CN101741138A CN101741138A CN200810190719A CN200810190719A CN101741138A CN 101741138 A CN101741138 A CN 101741138A CN 200810190719 A CN200810190719 A CN 200810190719A CN 200810190719 A CN200810190719 A CN 200810190719A CN 101741138 A CN101741138 A CN 101741138A
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Abstract
The invention relates to an information remote monitoring and managing technology of electrical variables, mainly comprising a distribution transformer load data acquisition monitor of a site acquisition end, a data transmission controller and load information monitoring, dispatching and managing software of a central end, wherein the site acquisition end acquires and preprocesses parameters of load parameters, equipment operation states, and the like of a distribution transformer and outlet lines of all paths at the low-voltage side of the distribution transformer and then remotely and wirelessly transmits the parameters to the monitoring central end through a GPRS (general packet radio service) communication mode; and after the monitoring central end receives the data sent by the site acquisition end, the data is processed and analyzed through upper computer software.
Description
Technical field
The present invention relates to the information remote monitoring administrative skill of electric variable.
Background technology
Some electric power system is not installed information remote monitoring and managing system of distribution transformer load now, can't pass through to the firsthand data, instructs on-the-spot the adjustment with suiting measures to local conditions, improves power supply quality.Also can't make low-voltage network direct yield,, can improve power factor, effectively reduce line loss as reactive power compensation on the spot.
To spend the maintenance that great amount of manpower and material resources is carried out controller switching equipment though power supply department is annual, but still often have accident to take place.
Data acquisition for electric energy and operation of power networks realtime monitoring are groundwork and the important technology contents for distribution management.At present existing multiple electric energy measurement instrument and corresponding data acquisition for electric energy device, and some power system monitor warning devices have also been arranged.But their data acquisition or monitoring alarm can not be finished each branch road electric energy quantitative analysis.And most of high and low voltage can all be installed in masthead or the cabinet by the measuring terminal device, needs a large amount of manually to safeguard, patrol etc., and so not only error is big, and work efficiency is low and inconvenient, and is dangerous.Patent documentation by retrieval, relevant documents a little less than finding four pieces: the signal pickup assembly (application number 01274653.3) of remote data monitoring system for kilowatt-hour meters (application number 02102131.7), electric power networks terminal, wireless remote control electrical energy data acquiring and supervisory control system (application number 03112392.9), though they have his own strong points, but have differently significantly with technical characterictic of the present invention, function and usage also has difference.
Summary of the invention
The present invention is intended to address the above problem, and proposes information remote monitoring and managing system of distribution transformer load, and the information on load of electric power system is carried out the remote monitoring management.It mainly is made up of the information on load monitoring management software of end distribution transformer load data acquisition and monitoring device, Data Transmission Control Unit and the center-side of collection in worksite.
The collection in worksite end is mainly with parameter acquisitions such as the load parameter of distribution transforming and each road outlet of low-pressure side thereof, equipment running status with carry out preliminary treatment, hold to Surveillance center by GPRS communication modes wireless remote transmission then, after Surveillance center end is received the data that the collection in worksite end sends, data are handled, analyzed by upper computer software, and the staff just can see data of different types information by the operation upper computer software.
For invention itself, its advantage is:
1, cost is low,
Existing equipment cost height, scope is wide in a city, quantity is big in public change, and existing equipment cost single channel is all in units up to ten thousand, and cost of the present invention is about 1,000 yuan;
2, volume is little;
3 wireless transmission,
Because the public installation environment more complicated that becomes, wire transmission is difficulty relatively, and the GPRS network comparative maturity, so transfer of data of the present invention adopts GPRS network;
4 is reliable and stable, and data are accurate
5 increase work efficiency, and alleviate workload, and the utilization remote monitoring and managing system is compared manually, and efficient is much higher naturally, and is for total maintenance work, also easily many.
Using benefit of the present invention is:
1, improves power supply quality, power supply reliability and reduce line loss
Can obtain the firsthand data by remote real time monitoring, suit measures to local conditions, instruct on-the-spot the adjustment, improve power supply quality distribution transformer load information.Automatically control by the scene, make low-voltage network direct yield,, can improve power factor, effectively reduce line loss as reactive power compensation on the spot.Avoided the persons on duty of power transformation operation class will emit heat to hold pincers type ammeter to the running status of temperature up to inspection distribution transforming and low-pressure side on-load switch in the power distribution room more than 45 degrees centigrade, measure load parameter, increase work efficiency greatly, reduce labour cost, improve the economic benefit of power supply enterprise.
2, in time scent a hidden danger with support equipment safety
To spend great amount of manpower though power supply department is annual, material resources are carried out the maintenance of controller switching equipment, but still often there is accident to take place, but can in time grasp the ruuning situation of distribution transforming and low-pressure side on-load switch by the management of distribution transformer load information remote monitoring, the serious overload that prevents to load causes burning of equipment, the serious imbalance of threephase load causes the acceleration of equipment to damage, it is low etc. that the power factor that uneconomical running status that the long-term light(-duty) service of distribution transforming causes and the operation of a large amount of inductive loads cause is crossed, can find on-load switch in advance near full-load run, before switch trip or accident generation, adopt an effective measure, avoid the generation of power outage or equipment fault.Therefore, support equipment safety is one of important content of automatic remote monitoring, by distribution transforming and on-load switch operation conditions are monitored in real time, analyzed and handle, can in time adjust equipment running status, guarantees controller switching equipment safety, stable, efficient operation.
3, the formulation for the urban network restructuring scheme provides foundation
In the process that urban network restructuring is drawn up a plan for, the complete sum of basic data is reliably quite important.And information remote monitoring and managing system of distribution transformer load provides accurate data for load prediction, line loss analyzing, demand Side Management etc., growth trend analysis for electricity consumption situation, load nature of electricity consumed and power load, draw, provide aspect the retrofit work data of science in power supply city network plannings such as carrying out system reform increase-volume, distribution transforming cloth point selection, for the power distribution automation management provides reliable service data and historical summary.
Description of drawings
Figure is the network system pie graph.
Embodiment
In conjunction with Figure of description the present invention is proposed embodiment now and is described further, be not limited only to following content but the present invention comprises:
1, data acquisition and monitoring device
The data acquisition end of system is mainly used in parameters such as gathering electric current, voltage, power, power factor (PF), public alternating temperature degree, on off state.Input signal is exported by the RS-485 interface after calculation process.External communication is by built-in RS-485 interface, and the data output protocol is adopted international standards, and (brief introduction of MODBUS communications protocol: the MODBUS agreement is a kind of all-purpose language that is applied on the electronic controller to the MODBUS agreement.By this agreement, controller each other, controller is via communicating by letter between network (for example Ethernet) and the miscellaneous equipment.It has become a universal industrial standard.It has been arranged, and the control appliance that different vendor produces can be linked to be industrial network, carries out centralized monitor).The signal parameter quantity of data acquisition and monitoring device collection has expansibility, as long as the acquisition module of said function in parallel, the signal input channel quantity of difference in functionality will increase thereupon, like this with regard to the thorough more problem of public change low-pressure side branch's duty ratio that solved, and make that the continuous upgrading of systemic-function is very convenient from now on.Because every public branch's load way difference that becomes low-pressure side, the expansibility of data acquisition channel quantity also greatly reduces equipment cost, has avoided unnecessary waste.The simplest collection terminal can be imported 6 road electric currents, 6 road voltages, if incorporate a data acquisition function module again into, all function signal passages all double.With south of a city power supply administration is example, and branch's load number of most of distribution transforming is 6 the tunnel, and the public low-pressure side branch load number that becomes of fraction reaches 12 the tunnel even more, can adopt a plurality of data acquisition function module in parallel to increase the way of load monitoring.Table 1 has mainly been listed the data acquisition function of different data acquisition terminals, and propping up the load number at the public variation of major part is 6 tunnel situation, and is general main to adopt SK-UI-B2 type data acquisition end.
2, Data Transmission Control Unit
Data Transmission Control Unit is used to accept every data of data collection station, and with storage in internal mass memory storage, can store once in per 5 minutes the soonest, as to gather the data once can store continuously 25 days in per 15 minutes.The data of gathering are sent to master system Surveillance center end by GPRS-MODEM with the GPRS communication modes.The internal structure of C type Data Transmission Control Unit as shown in the figure, its acquired data storage time can be at 5 minutes, 10 minutes, 15 minutes ... option was selected in 240 minutes, can connect transmission by real-time online, also can adopt timed sending, 24 timing datas can be set every day send point, data communication method adopts the GPRSTCP/IP mode, and communications protocol is deferred to " Q/GDW 130-2005 power load management system transfer of data stipulations " and MODBUS agreement.The Data Transmission Control Unit interior view is as follows:
3、GPRS-MODEM
GPRS-MODEM matches with Data Transmission Control Unit, and the data of gathering are sent to Surveillance center's end host computer in the GPRS mode.
Claims (1)
1. information remote monitoring and managing system of distribution transformer load comprises distribution transformer load data acquisition and monitoring device, Data Transmission Control Unit and center-side information on load monitoring and dispatching management software, it is characterized in that:
Distribution transformer load data acquisition and monitoring device is with parameter acquisitions such as load parameter, equipment running status and carry out preliminary treatment;
The upper communication server of holding to Surveillance center through GPRS communication modes wireless remote transmission by Data Transmission Control Unit and GPRS-MODEM then;
Reach the SQL data server again;
Handle, analyze by upper computer software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810190719A CN101741138A (en) | 2008-11-24 | 2008-12-29 | Information remote monitoring and managing system of distribution transformer load |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820167974.9 | 2008-11-24 | ||
| CN200810190719A CN101741138A (en) | 2008-11-24 | 2008-12-29 | Information remote monitoring and managing system of distribution transformer load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101741138A true CN101741138A (en) | 2010-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810190719A Pending CN101741138A (en) | 2008-11-24 | 2008-12-29 | Information remote monitoring and managing system of distribution transformer load |
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| CN (1) | CN101741138A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166321A (en) * | 2013-03-29 | 2013-06-19 | 国家电网公司 | Low voltage load wireless monitoring system |
| CN104062554A (en) * | 2014-07-16 | 2014-09-24 | 北京师范大学 | Telemetering and remote signaling power monitoring and fast fault diagnosis system |
| CN104158179A (en) * | 2014-08-08 | 2014-11-19 | 天津大学 | Non-intrusive load monitoring and disaggregating solution infrastructure |
| CN107632222A (en) * | 2017-11-17 | 2018-01-26 | 广东电网有限责任公司清远供电局 | A kind of portable load Analysis warning system and method |
-
2008
- 2008-12-29 CN CN200810190719A patent/CN101741138A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166321A (en) * | 2013-03-29 | 2013-06-19 | 国家电网公司 | Low voltage load wireless monitoring system |
| CN104062554A (en) * | 2014-07-16 | 2014-09-24 | 北京师范大学 | Telemetering and remote signaling power monitoring and fast fault diagnosis system |
| CN104158179A (en) * | 2014-08-08 | 2014-11-19 | 天津大学 | Non-intrusive load monitoring and disaggregating solution infrastructure |
| CN107632222A (en) * | 2017-11-17 | 2018-01-26 | 广东电网有限责任公司清远供电局 | A kind of portable load Analysis warning system and method |
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Open date: 20100616 |