CN102707178B - Method for prewarning and monitoring failures of secondary equipment of power system - Google Patents

Method for prewarning and monitoring failures of secondary equipment of power system Download PDF

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Publication number
CN102707178B
CN102707178B CN201210203711.XA CN201210203711A CN102707178B CN 102707178 B CN102707178 B CN 102707178B CN 201210203711 A CN201210203711 A CN 201210203711A CN 102707178 B CN102707178 B CN 102707178B
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China
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power consumption
equipment
consumption data
data information
power
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CN201210203711.XA
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Chinese (zh)
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CN102707178A (en
Inventor
袁浩
窦仁晖
吴艳平
姚志强
姜玉磊
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中国电力科学研究院
国家电网公司
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Priority to CN201210203711.XA priority Critical patent/CN102707178B/en
Publication of CN102707178A publication Critical patent/CN102707178A/en
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Abstract

The invention provides a method for prewarning and monitoring failures of secondary equipment of a power system. Based on the real-time acquisition of power consumption data information of the secondary equipment and data collecting and sharing of a data communication network, the warning fault state of the secondary equipment are logically forecasted and judged in situ by a master station system, and the result can be provided for dispatching personnel, protection personnel and maintenance personnel to serve as the reference of operation and maintenance in the next step. The method provided by the invention perfects the operation monitoring method of the secondary equipment, no longer completely relies on the warning information of the secondary equipment per se and provides auxiliary monitoring measures; by adopting the method, abnormal operation of the secondary equipment can be quickly discovered, and personnel on site can be reminded of resolving the problem promptly, so that further expansion of accidents is prevented and the incidence of burning during operation of the secondary equipment is effectively reduced; the whole-life management strategy of the secondary equipment is helped to be built, new management references are introduced and the management and maintenance of the secondary equipment of the whole system are perfected.

Description

A kind of secondary equipment in power system fault pre-alarming supervision method
Technical field
The invention belongs to power automation and communication technique field, be specifically related to a kind of secondary equipment in power system fault pre-alarming supervision method.
Background technology
Conventional electric power secondary system equipment mainly comprises relay protection, automatic safety device, failure wave-recording, monitoring and telecontrol system on the spot.Along with the develop rapidly of computer technology, the communication technology, the needs of intelligent grid, extra-high voltage system and new forms of energy, will there will be the demand of more intelligent secondary device.The electric power system fault causing because of secondary device reason in actual motion happens occasionally, when being analyzed, secondary device malfunction, tripping find, carry out secondary device status surveillance and can effectively reduce a large amount of repair and maintenance work on secondary device, find in time the incipient fault situation of secondary device, improve the average degree of reliability of secondary device.Secondary device enters the microcomputer epoch and makes equipment possess stronger logic judging function, and equipment self-inspection information is also on this basis, and progressively development is improved.Conventionally the controller moving on secondary equipment in power system is by central processing unit, and bank of digital signal processors becomes, and mutual by with external unit of processor, judges that it is abnormal, and recording exceptional state also sends abnormal signal.It is all the self-checking alarming information based on secondary device self that the secondary device fault warning of present stage monitors generally, the situation generation that these information have wrong report, fail to report the in the situation that of secondary device faults itself.
By the analysis and research to secondary device ruuning situation and abnormality, the power consumption based on Real-time Collection secondary device can increase the operation monitoring ability of secondary device, and necessary fault warning information of forecasting is provided.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art; the invention provides a kind of secondary equipment in power system fault pre-alarming supervision method; Real-time Collection based on secondary device power consumption data information and data communication network data acquisition are shared; by on the spot and main station system logic provide prediction and the judgement of secondary device alarm failure state; its result can offer dispatcher, and protection personnel and maintainer are as the foundation of next step Operation and Maintenance.
In order to realize foregoing invention object, the present invention takes following technical scheme:
A kind of secondary equipment in power system fault pre-alarming supervision method, said method comprising the steps of:
Step 1: gather the power consumption data information of secondary device, and by power consumption data information collecting device access substation data net;
Step 2: power consumption data information collecting device compares the power consumption mean values of secondary device real time power consumption and different time sections, obtains the abnormal warning information of secondary device power consumption data information;
Step 3: described power consumption data information and warning information are delivered to main station system and local backstage warning system on all;
Step 4: described main station system is associated the power consumption data information of reception and secondary device correlation database, and sets up model;
Step 5: whether the power consumption data information of differentiating secondary device is abnormal, if extremely provide the early warning information of secondary device, and provides the measure of secondary device inspection and maintenance.
In described step 1, the signal that Hall element gathers in the source input circuit of secondary device also inputs to A/D sampling system by signal, obtains the current value of secondary device power input, described current value and the rated direct voltage value power consumption data information that multiplies each other to obtain.
Described Hall element and A/D sampling system are arranged in independently in power consumption information collecting device or are integrated in secondary device inside.
In described step 2, power consumption data information collecting device compares the power consumption mean values of secondary device real time power consumption data message and different time sections, when real time power consumption is greater than the power consumption mean values of different time sections continuously, generate the abnormal warning information of secondary device power consumption data information.
In described step 3, secondary device is delivered to main station system and local backstage warning system by described power consumption data information and warning information on all by data communication network.
In described step 4, model comprises the different disaggregated models of secondary device, by device version type classification model, by equipment manufacturer's disaggregated model, by the model of the primary equipment classification of secondary device association, by the model of the geographic classification model He An secondary device producer time of making the product section classification of secondary device operation.
In described step 5, the secondary device power consumption data information of obtaining is online processed, analyzes and added up to described main station system in real time, whether the power consumption data information of differentiating secondary device is abnormal, if extremely provide the early warning information of secondary device, and provides the measure of secondary device inspection and maintenance.
Described main station system adopts data group relative method in conjunction with secondary device historical failure alarm data, judges that whether the power consumption data information of secondary device is abnormal.
Described main station system judges that according to following formula whether the power consumption data information of secondary device is abnormal:
P x > K t × K s × K p × ( Σ i = 1 n P i / n ) ;
Wherein, P xfor secondary device real time power consumption, K tfor temperature coefficient, K sfor definite value parameter, K pfor the unbalance factor of measurement of power loss, P ifor the real time power consumption of secondary device in secondary device correlation database, n is the numbering of secondary device in secondary device correlation database.
Compared with prior art, beneficial effect of the present invention is:
1. the method for secondary device operation monitoring that the present invention is perfect, relies on the warning information of secondary device self no longer completely, and the measure of auxiliary monitoring is provided;
2. the present invention can find the operation exception of secondary device fast, reminds field staff to solve a problem promptly, and the further expansion of Accident prevention can effectively prevent that secondary device from moving the probability of happening of burnout failure;
3. in conjunction with the secondary device machine account information of main website, use the method for secondary device power consumption data information monitoring alarm before secondary device breaks down, effectively to provide necessary early warning signal, arrange in time turnaround plan, before accident is not magnified, prevent trouble before it happens;
4. the situation that main station system side is damaged, safeguarded by recording secondary device power consumption data information and secondary device, can help to build the strategy that secondary device life-cycleization is managed, and introduces new administration base, and the secondary device that improves whole system administers and maintains.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention, secondary equipment in power system fault pre-alarming monitors method flow diagram;
Fig. 2 is the equipment failure alarm prediction system construction drawing monitoring based on secondary device power consumption in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As Fig. 1-Fig. 2, a kind of secondary equipment in power system fault pre-alarming supervision method, said method comprising the steps of:
Step 1: gather the power consumption data information of secondary device, and by power consumption data information collecting device access substation data net;
Step 2: power consumption data information collecting device compares the power consumption mean values of secondary device real time power consumption and different time sections, obtains the abnormal warning information of secondary device power consumption data information;
Step 3: described power consumption data information and warning information are delivered to main station system and local backstage warning system on all;
Step 4: described main station system is associated the power consumption data information of reception and secondary device correlation database, and sets up model;
Step 5: whether the power consumption data information of differentiating secondary device is abnormal, if extremely provide the early warning information of secondary device, and provides the measure of secondary device inspection and maintenance.
In described step 1, the signal that Hall element gathers in the source input circuit of secondary device also inputs to A/D sampling system by signal, obtains the current value of secondary device power input, described current value and the rated direct voltage value power consumption data information that multiplies each other to obtain.
Described Hall element and A/D sampling system are arranged in independently in power consumption information collecting device or are integrated in secondary device inside.
In described step 2, power consumption data information collecting device compares the power consumption mean values of secondary device real time power consumption data message and different time sections, when real time power consumption is greater than the power consumption mean values of different time sections continuously, generate the abnormal warning information of secondary device power consumption data information.
The rated disspation initial value Pset of secondary device, maximum power dissipation numerical value Pmax, maximum power consumption data average value P msec per second in 24 hours, previous hourly average power consumption data value Phour.; Meet continuous 3-20 measurement of power loss data and be all greater than Pset*3, Phour*3, Pmsec, 0.5Pmax or meet each hourly average power consumption data in continuous 3-7 hour and increase progressively more than 5%, generates the abnormal warning information of secondary device power consumption data information.
In described step 3, secondary device is delivered to main station system and local backstage warning system by described power consumption data information and warning information on all by data communication network.
In described step 4, model comprises the different disaggregated models of secondary device, by device version type classification model, by equipment manufacturer's disaggregated model, by the model of the primary equipment classification of secondary device association, by the model of the geographic classification model He An secondary device producer time of making the product section classification of secondary device operation.
In described step 5, the secondary device power consumption data information of obtaining is online processed, analyzes and added up to described main station system in real time, whether the power consumption data information of differentiating secondary device is abnormal, if extremely provide the early warning information of secondary device, and provides the measure of secondary device inspection and maintenance.
Described main station system adopts data group relative method in conjunction with secondary device historical failure alarm data, judges that whether the power consumption data information of secondary device is abnormal.
Described main station system judges that according to following formula whether the power consumption data information of secondary device is abnormal:
P x > K t × K s × K p × ( Σ i = 1 n P i / n ) ;
Wherein, P xfor secondary device real time power consumption, K tfor temperature coefficient, K sfor definite value parameter, K pfor the unbalance factor of measurement of power loss, P ifor the real time power consumption of secondary device in secondary device correlation database, n is the numbering of secondary device in secondary device correlation database.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.

Claims (7)

1. a secondary equipment in power system fault pre-alarming supervision method, is characterized in that: said method comprising the steps of:
Step 1: gather the power consumption data information of secondary device, and by power consumption data information collecting device access substation data net;
Step 2: power consumption data information collecting device compares the power consumption mean values of secondary device real time power consumption and different time sections, obtains the abnormal warning information of secondary device power consumption data information;
Step 3: described power consumption data information and warning information are delivered to main station system and local backstage warning system on all;
Step 4: described main station system is associated the power consumption data information of reception and secondary device correlation database, and sets up model;
Step 5: whether the power consumption data information of differentiating secondary device is abnormal, if extremely provide the early warning information of secondary device, and provides the measure of secondary device inspection and maintenance.
2. secondary equipment in power system fault pre-alarming supervision method according to claim 1, it is characterized in that: in described step 1, described power consumption data information collecting device comprises Hall element and A/D sampling system, signal in the source input circuit of Hall element collection secondary device also inputs to A/D sampling system by signal, obtain the current value of secondary device power input, described current value and the rated direct voltage value power consumption data information that multiplies each other to obtain; Described Hall element and A/D sampling system are all integrated in secondary device inside.
3. secondary equipment in power system fault pre-alarming supervision method according to claim 1, it is characterized in that: in described step 2, power consumption data information collecting device compares the power consumption mean values of secondary device real time power consumption data message and different time sections, when real time power consumption is greater than the power consumption mean values of different time sections continuously, generate the abnormal warning information of secondary device power consumption data information.
4. secondary equipment in power system fault pre-alarming supervision method according to claim 1, it is characterized in that: in described step 3, secondary device is delivered to main station system and local backstage warning system by described power consumption data information and warning information on all by data communication network.
5. secondary equipment in power system fault pre-alarming supervision method according to claim 1, it is characterized in that: in described step 4, model comprises by device version type classification model, by equipment manufacturer's disaggregated model, by the model of the primary equipment classification of secondary device association, by the model of the geographic classification model He An secondary device producer time of making the product section classification of secondary device operation.
6. secondary equipment in power system fault pre-alarming supervision method according to claim 1, it is characterized in that: in described step 5, the secondary device power consumption data information of obtaining is online processed, analyzes and added up to described main station system in real time, whether the power consumption data information of differentiating secondary device is abnormal, if abnormal provide the early warning information of secondary device, and provide the measure of secondary device inspection and maintenance.
7. secondary equipment in power system fault pre-alarming supervision method according to claim 6, is characterized in that: described main station system adopts data group relative method in conjunction with secondary device historical failure alarm data, judges that whether the power consumption data information of secondary device is abnormal.
CN201210203711.XA 2012-06-15 2012-06-15 Method for prewarning and monitoring failures of secondary equipment of power system CN102707178B (en)

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CN102930044B (en) * 2012-11-13 2016-06-29 广东电网公司 The analysis and processing method of power equipment test abnormality and system
DE102012223573A1 (en) * 2012-12-18 2014-07-03 Robert Bosch Gmbh Method and device for monitoring signal levels
CN103904777B (en) * 2012-12-26 2018-06-15 国网浙江省电力公司 A kind of method that effectiveness of information is sent in automatic identification electric grid secondary equipment
CN103454517B (en) * 2013-06-26 2016-05-11 广东电网公司佛山供电局 Capacitance type potential transformer on-line monitoring method
FR3009396B1 (en) * 2013-07-31 2017-03-17 Airbus Operations Sas Method and computer program for aiding the maintenance of aircraft equipment
CN105807162A (en) * 2016-03-25 2016-07-27 神华集团有限责任公司 Action monitoring circuit for secondary circuits in electrical system and terminal strip
CN106768000B (en) * 2017-01-06 2019-05-24 科诺伟业风能设备(北京)有限公司 A kind of wind driven generator set converter water-cooling system pressure anomaly detection method
CN106850325A (en) * 2017-04-17 2017-06-13 国网安徽省电力公司芜湖供电公司 A kind of distributed power grid secondary device managing and control system and its management-control method
CN107608850A (en) * 2017-08-23 2018-01-19 深圳企管加企业服务有限公司 Calculator room equipment power consumption monitoring method, device and storage medium based on Internet of Things
WO2019036953A1 (en) * 2017-08-23 2019-02-28 深圳企管加企业服务有限公司 Power consumption monitoring system for computer room equipment based on internet of things
CN107478934A (en) * 2017-08-23 2017-12-15 深圳企管加企业服务有限公司 Calculator room equipment power consumption monitoring system based on Internet of Things
CN108418304B (en) * 2018-03-09 2019-12-17 国家电网公司 Transformer substation secondary circuit state monitoring method, device and system
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