CN103178617A - Power grid operation state monitoring and analyzing system and method for power system - Google Patents
Power grid operation state monitoring and analyzing system and method for power system Download PDFInfo
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Abstract
The invention discloses a power grid operation state monitoring and analyzing system for a power system. The power grid operation state monitoring and analyzing system comprises an acquisition client, a terminal server, a data storage device and data acquisition nodes. Each data acquisition node comprises a signal transceiver, a geographic information processor and a signal controller, wherein the signal transceiver acquires a plurality of signals in a set area, the position information of the signals is determined through the maximum signal intensity in the geographic information processor, and the signals are processed through the signal controller and are transmitted to the acquisition client through the signal transceiver. The system has the advantages that the system is complementary with a conventional system, and functions required by scheduling are integrated; the abnormal operating mode, abnormality, early warning and other conditions of a power grid main rack can be intuitively reflected in real time through one interface; intelligent identification of a main transformer N-1, auxiliary processing functions, reactive comprehensive voltage analysis, short message alarm functions are realized; and later development and maintenance are easy. The invention also discloses a monitoring and analyzing method.
Description
Technical field
The present invention relates to electric power system electrical network power transmission and distribution technology, more particular words it, the present invention relates to a kind of operation of power networks condition monitoring, analysis and early warning system.
Background technology
Power network safety operation is subject to the impact of the many factors such as power system operating mode, trend situation, equipment state, and for traffic control, it is very important how can grasping in time, intuitively and accurately these information.The dispatch automated system of using in the market all adopts ground, county even province and district, county's integral system, and data server is also same server, and the user is not single for scheduling, has so following shortcoming:
1. wide and not smart.Due to for the user not single, face is too extensive, can not be fully from local management and running reality of work, the centralized dispatching required function is in one.
2. visualization interface deficient function.Can not be from the abnormal running mode that reflects all transformer stations directly perceived on an interface, the dispatcher need to click one by one transformer station and could understand.
3. exploitability is weak, later maintenance is difficult.On the one hand, do not guarantee the safety of database, split hair threshold system more; On the other hand, function redevelopment and later maintenance too rely on producer, and cost, maintenance cost are too high, and differ and guarantee surely to realize the function wanted.
Summary of the invention
The present invention has mainly solved several problems: 1) realize and the complementation of existing system, integrate the scheduling required function; 2) concentrate, the realization of visualization interface, just can reflect intuitively, in real time the situations such as electrical network main grid structure abnormal running mode, abnormal, early warning from an interface; 3) realize INTELLIGENT IDENTIFICATION, aid in treatment function and reactive voltage analysis-by-synthesis, the short message alarm function of main transformer N-1; 4) later development, maintenance are easily.
technical solution of the present invention: a kind of electric power system operation of power networks condition monitoring and analytical system, comprised the collection client, terminal server and data storage, in a zone, each electrical network converting equipment obtains its 220KV converting equipment reactive voltage by connecting wherein to gather client, stable limit, 220KV main transformer N-1 state or electrical network abnormal condition signal, and be connected to described terminal server, data storage is connected with terminal server, it improves design and is: further comprise the data acquisition node that is connected with described collection client, it comprises a signal transceiver, be used for receiving the described signal in its setting regions on every side, a geographic information processing device is for the positional information of confirming the new converting equipment in described setting regions, a signal controller is used for that the described signal from the whole converting equipments in described predeterminable area is carried out data and processes, wherein, signal transceiver is connected to respectively signal controller and geographic information processing device, obtain several signals in described setting regions by signal transceiver, decide the positional information of this signal by the signal strength signal intensity maximum in the geographic information processing device, process received signal and be sent to the collection client by the signal transceiver by described signal controller subsequently.
In an embodiment of electric power system operation of power networks condition monitoring and analytical system, described data acquisition node is to sentence the power line carrier mode or wireless mode obtains by the immediate known converting equipment in geographical position of new converting equipment therewith to the signal acquisition from described new converting equipment, and the geographical location information of wherein said known converting equipment is to default in a readable storage medium storing program for executing of described geographic information processing device.
In an embodiment of electric power system operation of power networks condition monitoring and analytical system, further comprise an output device, be used for the data from described data acquisition node are carried out visual demonstration.
In an embodiment of electric power system operation of power networks condition monitoring and analytical system, described geographic information processing device is comprised of a gps receiver and process chip.
In an embodiment of electric power system operation of power networks condition monitoring and analytical system, the improvement of described terminal server design comprises: a processor, design in order to:
Obtain reactive power and active power value from data acquisition node, by
Judge the reactive voltage state of converting equipment, wherein λ is power factor, P active power value, Q reactive power value; At least monitor power grid transmission line stability, power grid transmission line line loss or power grid transmission line efficiency, according to the processing of classifying of 220kV main transformer N-1 state analysis, wherein said classification is processed and has been comprised that 1 class satisfies N-1,2 classes do not satisfy N-1, the overcurrent multiple is 1-1.3, and 3 class overcurrent multiples are 1.3-1.5, and 4 classes are for surpassing 1.5 times.
Description of drawings
Fig. 1 is the structural principle block diagram of system of the present invention.
Embodiment
Fig. 1 is the main block diagram of system, schematically shows electric power system operation of power networks condition monitoring and analytical system, has wherein comprised collection client 1, terminal server 2 and data storage 3.In a zone, each electrical network converting equipment obtains its 220KV converting equipment reactive voltage, stable limit, 220KV main transformer N-1 state or electrical network abnormal condition signal by connecting to gather client 1, and be connected to described terminal server 2, data storage 3 is connected with terminal server 2, further comprise the data acquisition node 4 that is connected with described collection client 1, it comprises a signal transceiver 41, is used for receiving the described signal in its setting regions on every side; A geographic information processing device 42 is for the positional information of confirming the new converting equipment in described setting regions; A signal controller 43 is used for that the described signal from the whole converting equipments in described predeterminable area is carried out data and processes; Wherein, signal transceiver 41 is connected to respectively signal controller 43 and geographic information processing device 42, obtain several signals in described setting regions by signal transceiver 41, decide the positional information of this signal by the signal strength signal intensity maximum in geographic information processing device 42, process received signal and be sent to by signal transceiver 41 subsequently gathering client 1 by described signal controller 43.
In one embodiment, 4 pairs of signal acquisitions from described new converting equipment of described data acquisition node are to sentence the power line carrier mode or wireless mode obtains by the immediate known converting equipment in geographical position of new converting equipment therewith, and the geographical location information of wherein said known converting equipment is to default in a readable storage medium storing program for executing of described geographic information processing device 42.
In one embodiment, further comprise an output device 5, be used for the data from described data acquisition node 4 are carried out visual demonstration.
In one embodiment, described geographic information processing device 42 is comprised of a gps receiver and process chip.In one embodiment, reach by the multimode variable on geographical wiring diagram the switchblade knife state is carried out automatic Identification, circuit is set corresponding warning threshold value in various degree, different situations are distinguished with color, stop labour if any circuit and be yellow and flicker etc. for white, circuit overload, realize the 220kV circuit, the demonstration of 220kV factory station and the improper mode of subordinate transformer station and abnormal conditions.And concentrated stability limitation set monitor module, main transformer N-1 alarm, intellectual analysis, rationing the power supply always adds computing module and 220kV electric substation is idle, the voltage monitoring module is in one, rear three functions are set again by function and the data storage is read and realized consulting of concrete condition.This design has the following advantages:
1) although on the supervisory control system of using at present, monitoring function is arranged, difference in functionality is distributed in different sub-interfaces, can't carry out Real Time Monitoring to each sub-interface data at same main interface, therefore at a time can only monitor an interface data.
2) can check in real time, intuitively running status, the traffic overload situation that respectively becomes interconnection, the dispatcher can in time know when the electrical network appearance is abnormal; By the different situations of color differentiating operation of power networks, make the dispatcher more very clear to present electric power netting safe running situation simultaneously.
The situation generation that when 3) avoiding relieving, handing-over is not known or omitted to power system operating mode.
The 220kV main transformer is carried out the N-1 state analysis, specifically be divided into 4 classes, 1 class satisfies N-1, and 2 classes do not satisfy N-1, and the overcurrent multiple is 1-1.3, and 3 class overcurrent multiples are 1.3-1.5, and 4 classes are for surpassing 1.5 times.And provide strategy according to the permission overcurrent multiple of each main transformer and the permission overcurrent time of correspondence.According to analysis result, if super 1-1.3 doubly, yellow flicker, 1.3-1.5 doubly pink colour flicker, the 220Kv on off state, main transformer load and the capacity that show simultaneously each main transformer, when initial load multiple before recording N-1 truly occurs to recollect N-1, and show the sustainable time after N-1, the sustainable time can show in the automatic pouring timing.
When main transformer seriously transships need to ration the power supply the time, only need to choose relevant circuit in accident is rationed the power supply the tagmeme table and can always add total addend of rationing the power supply, avoid rationing the power supply more or rationing the power supply less, provide rapidly total application of load to carry out accident treatment to the dispatcher by calculating.This type of fault of auxiliary dispatching person's emergency treatment when main transformer N-1 occurs, is guaranteeing the stabilization of power grids and is avoiding under the prerequisite of operational outfit nonoverload, farthest realizes rationing the power supply becoming more meticulous, and avoids unnecessary loss of outage.
Dispatch automated system also provides main transformer N-1 function for monitoring at present, but lacks main transformer N-1 overload degree, sustainable time of overload and the strategy analysis of rationing the power supply.To sum up analyze, main transformer N-1 method for supervising provided by the invention has following advantage:
1) reflected quickly and easily the time that each 220kV main transformer N-1 situation, the overladen order of severity and dissimilar main transformer can continuous services;
2) when main transformer does not allow overload or main transformer N-1 fault, provide the strategy of rationing the power supply, helped the rapid control overhead of dispatcher, effectively guaranteed the reliable and stable operation of electrical network and the safety of equipment.
In electrical network main grid structure (220kV/500kV), the equipment such as some circuit, main transformer stop using as a servant the overload that may cause other operational outfits, the safety and stability limit that surpasses regulation, making power network safety operation be subject to very test, is therefore necessary to Risk-warning can be provided in this kind situation.The control strategy that different maintenance runs is corresponding different and different limits, need at present to add in supervisory control system by automation personnel, lack flexibility and independence, when personnel do or can not in time add or upgrade the monitoring limit night when mode hinders variation for some reason.By reading the measuring point in the Hisoon database, use the VB programming to realize that stability limitation monitors freely arranging of content and algorithm.
Only have single monitoring function idle to electric substation, power rate in current system, Shortcomings aspect alarm, decision making function, simultaneously also there is defective in the AVC system aspect control strategy, causes part 220kV electric substation power rate examination point defective.So need to provide the specially supervisory control system of, voltage idle for 220kV electric substation of a cover for dispatcher on duty, can accurately provide warning information when the power rate examination is defective, remind simultaneously the dispatcher in time to take counter-measure, guarantee that power rate, voltage return in acceptability limit.Require simultaneously to realize that the capacitor switching number of times shows and the abnormal SMS alarm function of long-time power rate.This functions of modules following 1) idle, power rate monitors 2) power rate alarm judgement 3) the capacitor action frequency shows 4) out-of-limit duration, qualification rate statistics 5) phonic warning 6) and the term Voltage power rate get over the line note send remind 7) history alarm record queries 8) statistical report form inquiry 9) several functions such as the curve chart demonstration of floating.
Wherein the capacitor action frequency can show the capacitor action frequency of a day, and AVC locking when reaching the maximum times of setting reminds regulation and control person need strengthen monitoring, manually adjusts.
In one embodiment, by the function of sending short messages, software can be sent to the warning information that customizes the personnel that choose automatically, is having special requirement also can adopt manual sending function, and the short message content of manually working out is sent to the personnel that choose.
In one embodiment, system architecture can be divided into the many levels such as acquisition layer, communication layers, data Layer, application layer, bears respectively different functions.For realizing gathering a large amount of electrical network real time datas, the present invention adopts the Hisoon database, and client utility and Visual Basic are as developing instrument.The Hisoon real-time data base provides clear, accurate electrical network measuring point data uses to meet the client development function of Microsoft Windows user interface standard fully in order to realize the exploitation of user's specific demand simultaneously.
In one embodiment, client (main interface) arranges button by main transformer setting, circuit and can realize circuit, the increase of main transformer limit, modification, and deposit the raw data base Microsoft Excel in, when the stability limitation requirement is arranged, select relevant device also as required from the edlin formula, structure output shows to client (main interface).
In one embodiment, program reads from database and respectively becomes idle, the meritorious value of 220kV side, according to
Wherein λ is power factor, and P is meritorious, and Q is idle.When result of calculation is defective, the dispatcher is reminded in sound, light alarm, note is sent to the related personnel, and the dispatcher can be by checking the interface concrete condition, and group number, number of times are moved back in throwing as capacitor, the defective time is decided is which group capacitor enough manual interventions and throwing move back.
For example, can purple on an OLED display 5, blueness, the red circuit that represents respectively different electric pressures, white is for stopping the labour state, and yellow is improper.Between each transformer station (for example representing with circle) and each transformer station, switch is all arranged in the interconnection both sides, switching value is made as the multimode amount and establishes normal condition is the initial condition amount, on off state directly reads the Real-Time Switch state of Hisoon database, refreshed once in every five minutes (can arrange shorter), when on off state changes and is inconsistent with the initial condition amount, the switch flicker.If between two transformer substation sides, switch divides the position, be abnormal condition, switch variable color flicker.Respectively undesired mode of change realizes by all position of the switch states in retrieval station, and when occurring not being inconsistent with initial condition, on main interface, the color of transformer station becomes yellow.
Another embodiment of the present invention provides a kind of electric power system operation of power networks condition monitoring and analytical system, be used for obtaining 220KV converting equipment reactive voltage, stable limit, 220KV main transformer N-1 state or electrical network abnormal condition signal from a zone that gathers client 1, its monitoring has comprised with analytical method:
Gather several signals of converting equipment in a setting regions in the mode of wireless connections by data acquisition node 4;
Contrast by geographic information processing device 42 parameter value with these several signals, with the positional information of the signal that obtains a maximum intensity value;
By signal controller 43 to sending a request command with the immediate known converting equipment of this signal residing geographical position distance, to obtain the signal of this new converting equipment;
The data message that carries in signal by the signal controller 43 described new converting equipments of acquisition sends to gather client 1;
Process and store by gathering 1 pair of data of client, set up the record in a new converting equipment and its geographical position, be sent to terminal server 2.
In one embodiment, data acquisition node 4 comprises a signal transceiver 41, is used for receiving the described signal in its setting regions on every side; Geographic information processing device 42 is for the positional information of confirming the new converting equipment in described setting regions; Signal controller 43 is used for that the described signal from the whole converting equipments in described predeterminable area is carried out data and processes; Wherein, signal transceiver 41 is connected to respectively signal controller 43 and geographic information processing device 42.
Claims (7)
1. an electric power system operation of power networks condition monitoring and analytical system, comprised the collection client, terminal server and data storage, in a zone, each electrical network converting equipment obtains its 220KV converting equipment reactive voltage by connecting wherein to gather client, stable limit, 220KV main transformer N-1 state or electrical network abnormal condition signal, and be connected to described terminal server, data storage is connected with terminal server, it is characterized in that: further comprise the data acquisition node that is connected with described collection client, it comprises a signal transceiver, be used for receiving the described signal in its setting regions on every side, a geographic information processing device is for the positional information of confirming the new converting equipment in described setting regions, a signal controller is used for that the described signal from the whole converting equipments in described predeterminable area is carried out data and processes, wherein, signal transceiver is connected to respectively signal controller and geographic information processing device, obtain several signals in described setting regions by signal transceiver, by decide the positional information of this signal in the geographic information processing device corresponding to the signal strength signal intensity maximum, process received signal and be sent to the collection client by the signal transceiver by described signal controller subsequently.
2. electric power system operation of power networks condition monitoring according to claim 1 and analytical system, it is characterized in that: described data acquisition node is to sentence the power line carrier mode or wireless mode obtains by the immediate known converting equipment in geographical position of new converting equipment therewith to the signal acquisition from described new converting equipment, and the geographical location information of wherein said known converting equipment is to default in a readable storage medium storing program for executing of described geographic information processing device.
3. electric power system operation of power networks condition monitoring according to claim 1 and analytical system, is characterized in that: further comprise the output device that a terminal server connects, be used for the data from described data acquisition node are carried out visual demonstration.
4. electric power system operation of power networks condition monitoring according to claim 1 and analytical system is characterized in that: described geographic information processing device is comprised of a gps receiver and process chip coupling.
5. electric power system operation of power networks condition monitoring according to claim 1 and analytical system, it is characterized in that: the improvement design of described terminal server comprises: a processor, design in order to: obtain reactive power and active power value from data acquisition node, by
Judge the reactive voltage state of converting equipment, wherein λ is power factor, P active power value, Q reactive power value; At least monitor power grid transmission line stability, power grid transmission line line loss or power grid transmission line efficiency, according to the processing of classifying of 220kV main transformer N-1 state analysis, wherein said classification is processed and has been comprised that 1 class satisfies N-1,2 classes do not satisfy N-1, the overcurrent multiple is 1-1.3, and 3 class overcurrent multiples are 1.3-1.5, and 4 classes are for surpassing 1.5 times.
6. an electric power system operation of power networks condition monitoring and analytical system, be used for obtaining 220KV converting equipment reactive voltage, stable limit, 220KV main transformer N-1 state or electrical network abnormal condition signal from a zone that gathers client, it is characterized in that, monitoring has comprised with analytical method:
Gather several signals of converting equipment in a setting regions in the mode of wireless connections by data acquisition node;
Parameter value by geographic information processing device and these several signals contrasts, with the positional information of the signal that obtains a maximum intensity value;
By signal controller to sending a request command with the immediate known converting equipment of this signal residing geographical position distance, to obtain the signal of this new converting equipment;
Obtain the data message that carries in the signal of described new converting equipment by signal controller, send to the collection client;
By gathering client, data are processed and stored, set up the record in a new converting equipment and its geographical position, be sent to terminal server.
7. electric power system operation of power networks condition monitoring according to claim 6 and analytical system, it is characterized in that: described data acquisition node comprises a signal transceiver, is used for receiving the described signal in the setting regions around it; The geographic information processing device is for the positional information of confirming the new converting equipment in described setting regions; Signal controller is used for that the described signal from the whole converting equipments in described predeterminable area is carried out data and processes; Wherein, signal transceiver is connected to respectively signal controller and geographic information processing device.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124757A (en) * | 2014-06-30 | 2014-10-29 | 国网青海省电力公司电力科学研究院 | Background operation monitoring system for power grid fault simulation detection device of high-altitude photovoltaic power station |
| WO2014176974A1 (en) * | 2013-07-16 | 2014-11-06 | 中兴通讯股份有限公司 | Intelligent electricity limiting method, device and system |
| CN105021925A (en) * | 2015-07-15 | 2015-11-04 | 深圳市双合电气股份有限公司 | Cement industry-based electric power supervision system and method |
| CN105811588A (en) * | 2016-05-26 | 2016-07-27 | 毛学辉 | Electric power grid safety running monitoring and communication system |
| CN105914888A (en) * | 2016-05-27 | 2016-08-31 | 姹や寒 | Power grid operation state monitoring and communication system and method |
| CN106655193A (en) * | 2016-11-10 | 2017-05-10 | 国网浙江省电力公司湖州供电公司 | Newsletter database-based power flow analysis method of distribution network |
| CN107077461A (en) * | 2014-04-11 | 2017-08-18 | 施恩禧电气有限公司 | User interface for checking event data |
| CN107872062A (en) * | 2017-12-22 | 2018-04-03 | 国网河北省电力有限公司衡水供电分公司 | A kind of anti-method for sending reactive limit value |
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| CN109471778A (en) * | 2018-11-19 | 2019-03-15 | 国网安徽省电力有限公司信息通信分公司 | A kind of monitoring method of electric system, device and equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202120285U (en) * | 2011-06-16 | 2012-01-18 | 重庆市电力公司南岸供电局 | Electronic identification management system |
| CN202772673U (en) * | 2012-09-06 | 2013-03-06 | 上海欣影电力科技发展有限公司 | Intelligent transformer substation inspection system |
| US20130063272A1 (en) * | 2011-09-13 | 2013-03-14 | International Business Machines Corporation | System and method for detecting and localizing abnormal conditions and electrical faults in an electrical grid |
| CN203151231U (en) * | 2013-04-03 | 2013-08-21 | 国家电网公司 | Monitoring and analysis system for power grid running state of electrical power system |
-
2013
- 2013-04-03 CN CN201310114561.XA patent/CN103178617B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202120285U (en) * | 2011-06-16 | 2012-01-18 | 重庆市电力公司南岸供电局 | Electronic identification management system |
| US20130063272A1 (en) * | 2011-09-13 | 2013-03-14 | International Business Machines Corporation | System and method for detecting and localizing abnormal conditions and electrical faults in an electrical grid |
| CN202772673U (en) * | 2012-09-06 | 2013-03-06 | 上海欣影电力科技发展有限公司 | Intelligent transformer substation inspection system |
| CN203151231U (en) * | 2013-04-03 | 2013-08-21 | 国家电网公司 | Monitoring and analysis system for power grid running state of electrical power system |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014176974A1 (en) * | 2013-07-16 | 2014-11-06 | 中兴通讯股份有限公司 | Intelligent electricity limiting method, device and system |
| CN104300672A (en) * | 2013-07-16 | 2015-01-21 | 中兴通讯股份有限公司 | Intelligent electricity limiting method, device and system |
| CN107077461A (en) * | 2014-04-11 | 2017-08-18 | 施恩禧电气有限公司 | User interface for checking event data |
| CN104124757B (en) * | 2014-06-30 | 2017-02-08 | 国家电网公司 | Background operation monitoring system for power grid fault simulation detection device of high-altitude photovoltaic power station |
| CN104124757A (en) * | 2014-06-30 | 2014-10-29 | 国网青海省电力公司电力科学研究院 | Background operation monitoring system for power grid fault simulation detection device of high-altitude photovoltaic power station |
| CN105021925A (en) * | 2015-07-15 | 2015-11-04 | 深圳市双合电气股份有限公司 | Cement industry-based electric power supervision system and method |
| CN105021925B (en) * | 2015-07-15 | 2018-06-29 | 深圳市双合电气股份有限公司 | Power monitoring system and method based on cement industry |
| CN105811588A (en) * | 2016-05-26 | 2016-07-27 | 毛学辉 | Electric power grid safety running monitoring and communication system |
| CN105914888A (en) * | 2016-05-27 | 2016-08-31 | 姹や寒 | Power grid operation state monitoring and communication system and method |
| CN106655193A (en) * | 2016-11-10 | 2017-05-10 | 国网浙江省电力公司湖州供电公司 | Newsletter database-based power flow analysis method of distribution network |
| CN107872062A (en) * | 2017-12-22 | 2018-04-03 | 国网河北省电力有限公司衡水供电分公司 | A kind of anti-method for sending reactive limit value |
| CN109146434A (en) * | 2018-10-24 | 2019-01-04 | 云南电网有限责任公司信息中心 | A kind of visualizing monitor platform and method towards digital electric network business |
| CN109471778A (en) * | 2018-11-19 | 2019-03-15 | 国网安徽省电力有限公司信息通信分公司 | A kind of monitoring method of electric system, device and equipment |
| CN109471778B (en) * | 2018-11-19 | 2023-05-05 | 国网安徽省电力有限公司信息通信分公司 | Monitoring method, device and equipment for power system |
| CN111404265A (en) * | 2019-12-24 | 2020-07-10 | 国网浙江省电力有限公司金华供电公司 | Plan visual display and pushing system and method |
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