CN104079067B - By the method for secondary device communications status diagnosis primary equipment state in electric power system - Google Patents
By the method for secondary device communications status diagnosis primary equipment state in electric power system Download PDFInfo
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- CN104079067B CN104079067B CN201410242895.XA CN201410242895A CN104079067B CN 104079067 B CN104079067 B CN 104079067B CN 201410242895 A CN201410242895 A CN 201410242895A CN 104079067 B CN104079067 B CN 104079067B
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 7
- 230000001681 protective Effects 0.000 claims abstract description 39
- 230000002159 abnormal effect Effects 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 description 7
- 238000004092 self-diagnosis Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000001131 transforming Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000001360 synchronised Effects 0.000 description 1
Abstract
By the method for secondary device communications status diagnosis primary equipment state in a kind of electric power system: S1 is reading system network configuration configuration data from the supervisory control system configuration file of electric power system; S2 reads the communications status of a measure and control device and supervisory control system from system; S3 checks that whether measure and control device communications status is normal; If S4 communications status is abnormal, the primary equipment state of demarcating the measurement of this measure and control device according to system network architecture is unknown state; S5 circulation performs step S2 to step S4, until all measure and control devices check complete; S6 reads the communications status of a protective device and supervisory control system from system; If S7 communications status is abnormal, the primary equipment state of demarcating the protection of this protective device according to system network architecture is dangerous running status; S8 follows the bad step S6 that performs to step S7, until all protective devices check complete.The present invention can reduce the possibility that the badly damaged accident of key equipment occurs when not having to run when protecting primary equipment.
Description
Technical field
The present invention relates in the monitoring of a kind of power system transformer substation utilizes secondary device communications status to realize the method for primary equipment state self diagnosis.
Background technology
In modern society, electric power system is the important infrastructure ensureing that national economy is normally run, and the large-area power-cuts fault of electric power system directly will produce direct significant impact to people's lives, national economy.Monitoring system of electric substation (the data acquisition and monitoring SCADA of transformer station) is the important component part of electric power system, is the important means analyzed electric power system, monitor.Especially along with computer technology, the communication technology, the improving constantly of automatization level, electric substation automation system is obviously more next to power system security, importance that is stable, economical operation.
Primary equipment in power system transformer substation monitoring refers to directly relevant with high-pressure side all devices, as transformer, isolating switch, circuit breaker etc.; Primary equipment state refers to the health status of equipment itself, can be divided into normal condition, attention state, abnormality and severe conditions, also comprises dangerous running status when unknown state when to lose communication with observing and controlling, protective device and primary equipment lose protection; Secondary device in power system transformer substation monitoring refers to protective device and measure and control device and automation equipment, refers in particular to protective device and measure and control device at this; In power system transformer substation monitoring, secondary device communications status refers to the signal intelligence of supervisory control system and secondary device, comprises communicating interrupt and communication is normal.
The automatization level of electric power system obtains tremendous development in recent years; from comprehensive automation system of transformer substation to sending out intelligent substation supervisory control system; all be unable to do without the application of Microcomputer Protection and automatics; protection particularly after Microcomputer, digitlization, the measure and control device (secondary device of transformer station; mainly protective device and measure and control device and automation equipment, call secondary device in the following text) achieve the senior automation function that traditional relay and Non-follow control cannot realize.The Microcomputer Protection of electric power system comprises tranformer protection, bus protection, line protection, capacitor protection, protection for feed line etc. according to the function realized is different with object of protection; Measure and control device major function gathers transformer, switch, the voltage of circuit, electric current, power and the analog quantity such as position signalling, guard signal, switching value in station, also comprises synchronous device simultaneously.The stability that protective device and measure and control device run directly affects the operation of whole supervisory control system.
The wall of intelligent substation supervisory control system mainly refers to general protective device and measure and control device.Wherein interval data and other data have very important contact, by wall, can realize the efficient communication between optical fiber and process layer.Thus, in transformer station, the communications status of secondary device and supervisory control system has very important impact to primary equipment state self diagnosis in transformer station.
There is following problem in existing transforming plant primary equipment condition diagnosing system: when not playing a role in network communication error situation.
Summary of the invention
Technical problem to be solved by this invention; just be to provide a kind of method by secondary device communications status diagnosis primary equipment state in electric power system; no matter whether network communication error can effectively play a role; improve operations staff to measure and control device, protective device with the understanding to harm to the system during supervisory control system communications status mistake; and obtain running status under the unknown state of corresponding primary equipment and precarious position according to the network configuration of system, reduce the possibility of primary equipment badly damaged accident of generation key equipment when not have to run when protecting.
Solve the problems of the technologies described above, the present invention adopts following technical scheme:
By a method for secondary device communications status diagnosis primary equipment state in electric power system, it is characterized in that comprising the following steps:
S1 reads power system network structural allocation data from the supervisory control system configuration file of electric power system, in this configuration file, comprises the network topology structure of secondary device, the annexation of secondary device and primary equipment;
S2 reads the communications status of a measure and control device and supervisory control system from electric power system, preserves the communication state of all measure and control devices and supervisory control system in supervisory control system;
S3 checks that whether measure and control device communications status is normal;
If S4 communications status is abnormal, the primary equipment state of demarcating the measurement of this measure and control device according to power system network structure is unknown state;
S5 circulation performs step S2 to step S4, until all measure and control devices check complete;
S6 reads the communications status of a protective device and supervisory control system from system;
If S7 communications status is abnormal, the primary equipment state of demarcating the protection of this protective device according to power system network structure is dangerous running status;
S8 follows the bad step S6 that performs to step S7, until all protective devices check complete.
If all measure and control devices of S9 and protective device and supervisory control system communications status are all normal, in electric power system, primary equipment is all working properly, otherwise occurs the primary equipment of unusual condition for abnormal and diagnosis.
The method of reading system network configuration configuration data from configuration file of described step S1 is: first form configuration file, read this configuration file after system cloud gray model, obtains system network architecture.
The method reading the communications status of a measure and control device and supervisory control system from system of described step S2 is: from system, read a measure and control device, and have by supervisory control system the communications status that method obtains this measure and control device and supervisory control system.
The whether normal method of inspection measure and control device communications status of described step S3 is: measure and control device communications status has running status, halted state, init state, and measure and control device is only in running status and just shows that this measure and control device language supervisory control system communication is normal.
If the communications status of described step S4 is abnormal, according to system network architecture, to demarcate primary equipment state that this measure and control device measures be the method for unknown state is: if the communication of measure and control device and supervisory control system is in non-operating state (being namely in halted state or init state), find according to network configuration configuration the primary equipment that this measure and control device measures, and the running status of the primary equipment that this measure and control device is measured is demarcated as unknown state.
In described step S5, circulation performs step S2 to step S4, until the method that all measure and control devices are disposed is: all measure and control devices all according to the method process one time of step S2 to step S4, calibrate all primary equipments being in unknown state in system.
In described step S6, the method reading the communications status of a protective device and supervisory control system from system is: from system, read a protective device, and obtain the communications status of this protective device and supervisory control system by systems approach.
In described step S7; if communications status is abnormal; the primary equipment state of demarcating the protection of this protective device according to system network architecture is the method for dangerous running status: check protection device communicates with supervisory control system and is in running status, and the running status of the primary equipment that the protective device being in non-operating state is protected is set to dangerous running status.
In described step S8; circulation performs step S6 to step S7; until the method that all protective devices are disposed is: all protective devices all according to the method process one time of step S6 to step S7, calibrate all primary equipments being in dangerous running status in system.
Advantage of the present invention and good effect are:
The present invention proposes the method utilizing secondary device communications status to realize primary equipment state self diagnosis, tool has the following advantages and good effect:
(1) problem that existing transforming plant primary equipment condition diagnosing system can not play a role in network communication error situation is solved.
(2) improve operations staff to measure and control device, protective device with the understanding to harm to the system during supervisory control system communications status mistake.
(3) possibility that the badly damaged accident of key equipment occurs when not having to run when protecting primary equipment is reduced.
Accompanying drawing explanation
Fig. 1 is that the present invention utilizes secondary device communications status to realize the process chart of primary equipment state self diagnosis.
Embodiment
Below in conjunction with specific embodiment, the inventive method is elaborated:
What the present invention relates to is utilize secondary device communications status to realize the method for primary equipment state self diagnosis in a kind of electric power system, realizes primary equipment state and carries out self diagnosis process, and as shown in Figure 1, its concrete grammar step is as follows:
1, reading system network configuration configuration data from configuration file
The method of reading system network configuration configuration data from configuration file of described step 1 is: first form configuration file, read this configuration file after system cloud gray model, obtains system network architecture.
2, from system, read the communications status of a measure and control device and supervisory control system
The method reading the communications status of a measure and control device and supervisory control system from system of described step 2 is: from system, read a measure and control device, and obtain the communications status of this measure and control device and supervisory control system by systems approach.
3, check that whether measure and control device communications status is normal
The whether normal method of inspection measure and control device communications status of described step 3 is: measure and control device communications status has running status, halted state, init state etc., and measure and control device is only in running status and just shows that this measure and control device language supervisory control system communication is normal.
If 4 communications status are abnormal, the primary equipment state of demarcating the measurement of this measure and control device according to system network architecture is unknown state
If the communications status of described step 4 is abnormal, according to system network architecture, to demarcate primary equipment state that this measure and control device measures be the method for unknown state is: if the communication of measure and control device and supervisory control system is in non-operating state (being namely in halted state, init state etc.), configures just know the primary equipment that this measure and control device is measured according to network configuration; Occur that the running status of the primary equipment that this situation is just measured this measure and control device is demarcated as unknown state.
5, circulation performs step (2) to step (4), until all measure and control devices are disposed
The circulation of described step 5 performs step (2) to step (4), until the method that all measure and control devices are disposed is: all measure and control devices all according to step (2) to the method process one time of step (4), just can calibrate all primary equipments being in unknown state in system.
6, from system, read the communications status of a protective device and supervisory control system
The method reading the communications status of a protective device and supervisory control system from system of described step 6 is: from system, read a protective device, and obtain the communications status of this protective device and supervisory control system by systems approach.
If 7 communications status are abnormal, the primary equipment state of demarcating the protection of this protective device according to system network architecture is dangerous running status
If the communications status of described step 7 is abnormal; the primary equipment state of demarcating the protection of this protective device according to system network architecture is the method for dangerous running status: check protection device communicates with supervisory control system and is in running status, and the running status of the primary equipment that the protective device being in non-operating state is protected is set to dangerous running status.
8, circulation performs step (6) to step (7), until all protective devices are disposed
The circulation of described step 8 performs step (6) to step (7); until the method that all protective devices are disposed is: all protective devices all according to step (6) to the method process one time of step (7), calibrate all primary equipments being in dangerous running status in system.
Claims (7)
1. diagnose a method for primary equipment state in electric power system with secondary device communications status, it is characterized in that comprising the following steps:
S1 reads power system network structural allocation data from the supervisory control system configuration file of electric power system, in this configuration file, includes the annexation of the network topology structure of secondary device, secondary device and primary equipment;
S2 reads the communications status of a measure and control device and supervisory control system from electric power system, preserves the communication state of all measure and control devices and supervisory control system in supervisory control system;
S3 checks that whether measure and control device communications status is normal;
If S4 communications status is abnormal, the primary equipment state of demarcating the measurement of this measure and control device according to power system network structure is unknown state;
S5 circulation performs step S2 to step S4, until all measure and control devices check complete;
S6 reads the communications status of a protective device and supervisory control system from system;
If S7 communications status is abnormal, the primary equipment state of demarcating the protection of this protective device according to power system network structure is dangerous running status;
S8 follows the bad step S6 that performs to step S7, until all protective devices check complete;
If all measure and control devices of S9 and protective device and supervisory control system communications status are all normal, in electric power system, primary equipment is all working properly, otherwise occurs the primary equipment of unusual condition for abnormal and diagnosis.
2. the method for primary equipment state in electric power system according to claim 1, is diagnosed with secondary device communications status, it is characterized in that: described step S1 comprises following sub-step: first form configuration file, read this configuration file after system cloud gray model, obtain system network architecture.
3. the method for primary equipment state in electric power system according to claim 1, is diagnosed with secondary device communications status, it is characterized in that: described step S2 comprises following sub-step: from system, read a measure and control device, have by supervisory control system the communications status that method obtains this measure and control device and supervisory control system.
4. the method for primary equipment state in electric power system according to claim 1, is diagnosed with secondary device communications status, it is characterized in that: described step S3 is: measure and control device communications status has running status, halted state and init state, measure and control device is only in running status and just shows that this measure and control device language supervisory control system communication is normal.
5. the method for primary equipment state in electric power system according to claim 1, is diagnosed with secondary device communications status, it is characterized in that: described step S4 is: if the communication of measure and control device and supervisory control system is in non-operating state, find according to network configuration configuration the primary equipment that this measure and control device measures, the running status of the primary equipment that this measure and control device is measured is demarcated as unknown state.
6. the method for primary equipment state in electric power system according to claim 1, is diagnosed with secondary device communications status; it is characterized in that: described step S6 comprises following sub-step: from system, read a protective device, obtain the communications status of this protective device and supervisory control system by systems approach.
7. the method for primary equipment state in electric power system according to claim 1, is diagnosed with secondary device communications status; it is characterized in that: described step S7 is: check protection device communicates with supervisory control system and is in running status, the running status of the primary equipment that the protective device being in non-operating state is protected is set to dangerous running status.
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| CN110247323A (en) * | 2019-04-23 | 2019-09-17 | 国网浙江省电力有限公司绍兴供电公司 | A kind of one secondary device state of intelligent substation corresponds to judgment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441240A (en) * | 2008-12-23 | 2009-05-27 | 上海德力西集团有限公司 | Intelligent state monitoring method of medium-pressure switch apparatus |
| CN102122844A (en) * | 2011-03-01 | 2011-07-13 | 江苏省电力设计院 | Intelligent substation based on sensor, communication network and expert system |
| CN103063968A (en) * | 2013-01-14 | 2013-04-24 | 中国能源建设集团广东省电力设计研究院 | Convertor station electrical equipment status integrated online monitoring system |
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| JP5627477B2 (en) * | 2011-01-20 | 2014-11-19 | 三菱重工業株式会社 | Plant safety design support device and plant monitoring and maintenance support device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441240A (en) * | 2008-12-23 | 2009-05-27 | 上海德力西集团有限公司 | Intelligent state monitoring method of medium-pressure switch apparatus |
| CN102122844A (en) * | 2011-03-01 | 2011-07-13 | 江苏省电力设计院 | Intelligent substation based on sensor, communication network and expert system |
| CN103063968A (en) * | 2013-01-14 | 2013-04-24 | 中国能源建设集团广东省电力设计研究院 | Convertor station electrical equipment status integrated online monitoring system |
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Address after: 525000 Guangdong Province, Maoming City, Guan Shan Road, No. four, No. 2 Applicant after: MAOMING POWER SUPPLY BUREAU, GUANGDONG POWER GRID CO., LTD. Address before: 525000 Guangdong Province, Maoming City, Guan Shan Road, No. four, No. 2 Applicant before: Maoming Power Supply Bureau, Guangdong Grid Co., Ltd. |
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