CN104377824A - Monitoring system of low-voltage power distribution transformer - Google Patents
Monitoring system of low-voltage power distribution transformer Download PDFInfo
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- CN104377824A CN104377824A CN201410657472.4A CN201410657472A CN104377824A CN 104377824 A CN104377824 A CN 104377824A CN 201410657472 A CN201410657472 A CN 201410657472A CN 104377824 A CN104377824 A CN 104377824A
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- power distribution
- residual current
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a monitoring system of a low-voltage power distribution transformer. The monitoring system of the low-voltage power distribution transformer mainly comprises a monitoring terminal, a communication system and a monitoring background. The monitoring terminal is in charge of collecting voltage, current, remaining current and failure information on site, the communication system is in charge of transmitting monitoring data, and the monitoring background is used for monitoring the running condition of the transformer in real time and remotely controlling the transformer. The monitoring terminal comprises intelligent remaining current protection modules and GPRS communication modules.
Description
Technical field
The present invention relates to a kind of LV Distribution Monitoring System, specifically a kind of electric power monitoring system of low-voltage power distribution station area.
Background technology
In recent years, State Grid Corporation of China proposes and strengthens strong intelligent grid construction, improves the development strategy of electrical network intelligent level, proposes new, higher requirement to power grid construction and management.For adapting to new situations and the new demand of power network development, being in the backward state of labor management for current low-voltage power distribution station area, having researched and developed low-voltage power distribution station area intelligent monitor system, realizing platform district science, effective, intelligentized management.
At present, in the management work of low-voltage power distribution station area, also lack science, effective means carry out the basic datas such as Real-time Obtaining low-voltage circuit voltage, electric current, residual current, can only survey crew be relied on.Carry out field survey by means of the survey tool such as universal instrument, clamp on amperemeter to platform district, both cause the waste of the resources such as human and material resources, there is potential safety hazard to a certain extent.Due to real-time monitoring can not be accomplished, exist in real work obtain data not in time, not comprehensively, the not problem such as science, cause electric company at county level shortage science, accurately valid data in the work such as Controlling line loss, voltage management and reliability management of power supply.
Meanwhile, for the power failure that causes after platform district residual current operated protective device tripping operation locking, all need user to report rear business office for repairment and just know, then dispatch officers to be on the scene and carry out residual current operated protective device closing operation.This process needs half an hour at the soonest, moreover most user dials electrical power services hot line or business office's repairing working telephone immediately, also greatly reduce power supply reliability, and then affect the safe and stable operation of electrical network, cause inevitable economic loss.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of novel low-voltage power distribution station area supervisory control system.This low-voltage power distribution station area supervisory control system is mainly divided into monitor terminal, communication system, monitoring backstage three part.Monitor terminal is responsible for collection site voltage, electric current, residual current and fault message, and communication system is responsible for the transmission of monitor data, and monitoring real time monitoring platform district, backstage ruuning situation, Bing Duitai district carries out straighforward operation.Wherein, monitor terminal comprises intelligent residual current protection, GPRS communication module.
Described intelligent residual current protection module adopts AECCL1 Series Intelligent residual current operated protective device, is arranged on the low-pressure line-outgoing in low-voltage power distribution station area JP cabinet, replaces " residual current time pulse relay+A.C. contactor " protected mode adopted in the past.It has 485 communication interfaces, is applicable to the low voltage electric network of three-phase and four-line neutral-point solid ground, possesses the defencive function such as overload, short circuit, under-voltage, overvoltage, residual current, the disconnected neutral line, phase shortage, phase sequence; Also need to possess the functions such as the measurement of 400V electrical network major parameter, failure logging, and with long-range point/close control, point/close signal export and communication interface, reach low voltage electric network upgrading intelligent management.
Described GPRS communication module, adopts LB-GPRS-320 type built-in technical grade GPRS communication module.This module is communicated with intelligent residual current protection by full duplex RS-485 serial line interface to lower, gathers the Various types of data such as three-phase voltage, three-phase current, residual current, fault message, on off state; To on access Internet by GPRS network, Various types of data is transferred to background monitoring server, fault alarm information is passed to the mobile phone of management, operations staff in the mode of note.By this module, background monitoring server and intelligent residual current achieve transparent transfer of data between protecting, and can realize " three is distant " function of remote control, remote measurement, remote signalling.
Communication system adopts GPRS public network.
Monitoring backstage comprises monitoring server, monitoring equipment and equipment manager mobile phone.Server end service data acquisition software, is communicated with on-the-spot Intelligent residual current protector for power by Internet, GPRS network, gathers the various data such as charge value, fault alarm, be stored in database.
Monitoring equipment, equipment manager mobile phone are the common computer and mobile phone that use in people's daily life.Management and operations staff by running on the monitoring equipment software in Windows system, the data such as three-phase voltage, three-phase current, residual current, fault message, on off state of each power distribution station capable of displaying live view low-voltage distributing line, and Long-distance Control is divided/closed a floodgate.By equipment manager mobile phone, low-voltage power distribution station area fault message can be understood in real time, and straighforward operation is carried out to intelligent residual current protection.
Low-voltage power distribution station area intelligent monitor system adopts Internet technology, makes application person can apply this system at any time, everywhere.System design functions comprises system management, basic application and operational management three part.
System management comprises rights management and unit management.Described rights management, comprises Role Management, account management and Password Management.Described Role Management, namely give the operation-roles that systemic presupposition is different, each role can distribute different authorities and function.Different roles can be given according to different demands when distributing account like this, thus make it have specific function and authority when entering system.Account management, namely distributes account as required under respective unit, makes it can enter this application system.When distributing account, its application role and password need be given, so just make account have specific function.Password Management, namely arranges or revises the login password of user.
Described unit management.The functions such as the interpolation of all units in unit management and management system, amendment or deletion, the validity of constituent parts in maintenance system, makes system cloud gray model in the state of simplifying most, saves system resource.
The basic application of described systemic-function comprises the selection of platform district, residual current protecting data query, tripping operation information inquiry, optimum configurations.The platform district that can only choose unit one belongs to is selected in described district; The essential information of residual current protecting data query display current residual current protection, comprises file data, instantaneous operating conditions, and can inquire about the historical data of each residual current protecting, as electric current, voltage, residual current etc., and available chart display.This function and data only start display after starting monitoring, can carry out long-range point/closing operation and long-range residual current trial jump operation to each residual current operated protective device in affiliated platform district.
Described tripping operation information inquiry.Tripping operation information inquiry can inquire about the history tripping operation information of each residual current protecting, comprises trip time, trip reason, trip parameters etc.
Described optimum configurations can read and arrange time, the functional status and running parameter etc. of residual current protecting.
Described operational management function comprises the file administration of platform district, operating analysis management.Described district's file administration.Can add, revise or delete platform district archives and leak and protect switch archives.Described operating analysis management is analyzed according to the qualification rate of historical data to residual current, three-phase voltage, three-phase current, analyzes load balancing degree qualification rate.Load balancing degree qualification rate is the ratio accounting for time that three-phase current unbalance degree is less than 20% total time.Degree of balance qualification rate is less than to the platform district of 60%, notifies electrician's Load adjustment.
Due to technique scheme, the present invention has following beneficial effect: can realize science, effective, intelligentized management to the platform district of far-end; Can the basic data such as Real-time Obtaining low-voltage circuit voltage, electric current, residual current; The platform district running state data obtained more accurately and reliably, makes electric company have science, accurately valid data in the work such as Controlling line loss, voltage management and reliability management of power supply.Real-time monitoring simultaneously decreases the time of platform district fault discovery and process, improves the reliability of operation of power networks.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is low-voltage power distribution station area supervisory control system frame diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
Embodiment:
See Fig. 1, this low-voltage power distribution station area supervisory control system is mainly divided into monitor terminal, communication system, monitoring backstage three part.Monitor terminal is responsible for collection site voltage, electric current, residual current and fault message, and communication system is responsible for the transmission of monitor data, and monitoring real time monitoring platform district, backstage ruuning situation, Bing Duitai district carries out straighforward operation.Wherein, monitor terminal comprises intelligent residual current protection, GPRS communication module.
Described intelligent residual current protection module adopts AECCL1 Series Intelligent residual current operated protective device, is arranged on the low-pressure line-outgoing in low-voltage power distribution station area JP cabinet, replaces " residual current time pulse relay+A.C. contactor " protected mode adopted in the past.It has 485 communication interfaces, is applicable to the low voltage electric network of three-phase and four-line neutral-point solid ground, possesses the defencive function such as overload, short circuit, under-voltage, overvoltage, residual current, the disconnected neutral line, phase shortage, phase sequence; Also need to possess the functions such as the measurement of 400V electrical network major parameter, failure logging, and with long-range point/close control, point/close signal export and communication interface, reach low voltage electric network upgrading intelligent management.
Described GPRS communication module, adopts LB-GPRS-320 type built-in technical grade GPRS communication module.This module is communicated with intelligent residual current protection by full duplex RS-485 serial line interface to lower, gathers the Various types of data such as three-phase voltage, three-phase current, residual current, fault message, on off state; To on access Internet by GPRS network, Various types of data is transferred to background monitoring server, fault alarm information is passed to the mobile phone of management, operations staff in the mode of note.By this module, background monitoring server and intelligent residual current achieve transparent transfer of data between protecting, and can realize " three is distant " function of remote control, remote measurement, remote signalling.
Communication system adopts GPRS public network.
Monitoring backstage comprises monitoring server, monitoring equipment and equipment manager mobile phone.Server end service data acquisition software, is communicated with on-the-spot Intelligent residual current protector for power by Internet, GPRS network, gathers the various data such as charge value, fault alarm, be stored in database.
Monitoring equipment, equipment manager mobile phone are the common computer and mobile phone that use in people's daily life.Management and operations staff by running on the monitoring equipment software in Windows system, the data such as three-phase voltage, three-phase current, residual current, fault message, on off state of each power distribution station capable of displaying live view low-voltage distributing line, and Long-distance Control is divided/closed a floodgate.By equipment manager mobile phone, low-voltage power distribution station area fault message can be understood in real time, and straighforward operation is carried out to intelligent residual current protection.
Low-voltage power distribution station area intelligent monitor system adopts Internet technology, makes application person can apply this system at any time, everywhere.System design functions comprises system management, basic application and operational management three part.
System management comprises rights management and unit management.Described rights management, comprises Role Management, account management and Password Management.Described Role Management, namely give the operation-roles that systemic presupposition is different, each role can distribute different authorities and function.Different roles can be given according to different demands when distributing account like this, thus make it have specific function and authority when entering system.Account management, namely distributes account as required under respective unit, makes it can enter this application system.When distributing account, its application role and password need be given, so just make account have specific function.Password Management, namely arranges or revises the login password of user.
Described unit management.The functions such as the interpolation of all units in unit management and management system, amendment or deletion, the validity of constituent parts in maintenance system, makes system cloud gray model in the state of simplifying most, saves system resource.
The basic application of described systemic-function comprises the selection of platform district, residual current protecting data query, tripping operation information inquiry, optimum configurations.The platform district that can only choose unit one belongs to is selected in described district; The essential information of residual current protecting data query display current residual current protection, comprises file data, instantaneous operating conditions, and can inquire about the historical data of each residual current protecting, as electric current, voltage, residual current etc., and available chart display.This function and data only start display after starting monitoring, can carry out long-range point/closing operation and long-range residual current trial jump operation to each residual current operated protective device in affiliated platform district.
Described tripping operation information inquiry.Tripping operation information inquiry can inquire about the history tripping operation information of each residual current protecting, comprises trip time, trip reason, trip parameters etc.
Described optimum configurations can read and arrange time, the functional status and running parameter etc. of residual current protecting.
Described operational management function comprises the file administration of platform district, operating analysis management.Described district's file administration.Can add, revise or delete platform district archives and leak and protect switch archives.Described operating analysis management is analyzed according to the qualification rate of historical data to residual current, three-phase voltage, three-phase current, analyzes load balancing degree qualification rate.Load balancing degree qualification rate is the ratio accounting for time that three-phase current unbalance degree is less than 20% total time.Degree of balance qualification rate is less than to the platform district of 60%, notifies electrician's Load adjustment.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (4)
1. a low-voltage power distribution station area supervisory control system, it is characterized in that, this low-voltage power distribution station area intelligent monitor system is mainly divided into monitor terminal, communication system, monitoring backstage three part, monitor terminal is responsible for collection site voltage, electric current, residual current and fault message, communication system is responsible for the transmission of monitor data, monitoring real time monitoring platform district, backstage ruuning situation, Bing Duitai district carries out straighforward operation.Wherein, monitor terminal comprises intelligent residual current protection module, GPRS communication module.
2. low-voltage power distribution station area supervisory control system according to claim 1, it is characterized in that, intelligent residual current protection module is arranged on the low-pressure line-outgoing in low-voltage power distribution station area distribution transformer integrated power distribution cabinet (JP cabinet), it has 485 communication interfaces, for the low voltage electric network of three-phase and four-line neutral-point solid ground, possesses the defencive function such as overload, short circuit, under-voltage, overvoltage, residual current, the disconnected neutral line, phase shortage, phase sequence; Also need to possess the functions such as the measurement of 400V electrical network major parameter, failure logging, and with long-range point/close control, point/close signal export and communication interface.
3. low-voltage power distribution station area supervisory control system according to claim 1, it is characterized in that, described GPRS communication module, adopt built-in technical grade GPRS communication module, this module is communicated with intelligent residual current protection by full duplex RS-485 serial line interface to lower, gathers the Various types of data such as three-phase voltage, three-phase current, residual current, fault message, on off state; To on access Internet by GPRS network, Various types of data is transferred to background monitoring server, fault alarm information is passed to the mobile phone of management, operations staff in the mode of note; By this module, background monitoring server and intelligent residual current achieve transparent transfer of data between protecting, and realize the function of remote control, remote measurement, remote signalling.
4. the low-voltage power distribution station area supervisory control system according to claim 1-3 any one, is characterized in that, communication system adopts GPRS public network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410657472.4A CN104377824A (en) | 2014-11-18 | 2014-11-18 | Monitoring system of low-voltage power distribution transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410657472.4A CN104377824A (en) | 2014-11-18 | 2014-11-18 | Monitoring system of low-voltage power distribution transformer |
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| CN104377824A true CN104377824A (en) | 2015-02-25 |
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| CN201410657472.4A Pending CN104377824A (en) | 2014-11-18 | 2014-11-18 | Monitoring system of low-voltage power distribution transformer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317400A (en) * | 2017-08-10 | 2017-11-03 | 广州供电局有限公司 | Household electricity intelligent monitor system and method |
| CN108037388A (en) * | 2017-12-08 | 2018-05-15 | 国网山东省电力公司滨州市滨城区供电公司 | A kind of high damage taiwan area electricity data handling system |
| CN108631437A (en) * | 2018-03-16 | 2018-10-09 | 广东电网有限责任公司清远供电局 | A kind of low-voltage distribution network automatic control system |
| CN109412122A (en) * | 2018-11-05 | 2019-03-01 | 国电南瑞科技股份有限公司 | Pouring-in low-voltage intelligent switch |
| CN111654104A (en) * | 2020-05-27 | 2020-09-11 | 四川恒鸿电力建设有限公司 | Power distribution room running state fault monitoring system |
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| CN203071651U (en) * | 2012-11-19 | 2013-07-17 | 上海市电力公司 | Residual current remote data collection and operation monitoring system |
| CN103530973A (en) * | 2013-10-09 | 2014-01-22 | 浙江创丰智能电子科技有限公司 | GPRS (General Packet Radio Service) wireless intelligent electrical safety supervision system |
| CN203574350U (en) * | 2013-11-25 | 2014-04-30 | 国家电网公司 | Intelligent residual current protection device |
| CN103855802A (en) * | 2012-12-06 | 2014-06-11 | 大连天翔电器制造有限公司 | Electric power distribution automatic monitoring system |
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- 2014-11-18 CN CN201410657472.4A patent/CN104377824A/en active Pending
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| CN203071651U (en) * | 2012-11-19 | 2013-07-17 | 上海市电力公司 | Residual current remote data collection and operation monitoring system |
| CN103855802A (en) * | 2012-12-06 | 2014-06-11 | 大连天翔电器制造有限公司 | Electric power distribution automatic monitoring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317400A (en) * | 2017-08-10 | 2017-11-03 | 广州供电局有限公司 | Household electricity intelligent monitor system and method |
| CN108037388A (en) * | 2017-12-08 | 2018-05-15 | 国网山东省电力公司滨州市滨城区供电公司 | A kind of high damage taiwan area electricity data handling system |
| CN108631437A (en) * | 2018-03-16 | 2018-10-09 | 广东电网有限责任公司清远供电局 | A kind of low-voltage distribution network automatic control system |
| CN109412122A (en) * | 2018-11-05 | 2019-03-01 | 国电南瑞科技股份有限公司 | Pouring-in low-voltage intelligent switch |
| CN111654104A (en) * | 2020-05-27 | 2020-09-11 | 四川恒鸿电力建设有限公司 | Power distribution room running state fault monitoring system |
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Application publication date: 20150225 |