CN104079067A - Method for diagnosing states of primary equipment by means of communication states of secondary equipment in electric system - Google Patents
Method for diagnosing states of primary equipment by means of communication states of secondary equipment in electric system Download PDFInfo
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- CN104079067A CN104079067A CN201410242895.XA CN201410242895A CN104079067A CN 104079067 A CN104079067 A CN 104079067A CN 201410242895 A CN201410242895 A CN 201410242895A CN 104079067 A CN104079067 A CN 104079067A
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Abstract
A method for diagnosing states of primary equipment by means of communication states of secondary equipment in an electric system includes the steps that (S1) configuration data of a system network architecture are read from a monitoring system configuration file of the electric system; (S2) the communication state of a measuring and control device and a monitoring system is read from the system; (S3) whether the communication state of the measuring and control device is normal is detected; (S4) if the communication state is abnormal, the state of the primary equipment measured by the measuring and control device is marked as an unknown state according to the system network architecture; (S5) the second step to the fourth step is executed circularly until all measuring and control devices are examined; (S6) the communication state of a protection device and the monitoring system is read from the system; (S7) if the communication state is abnormal, the state of the primary equipment protected by the protection device is marked as a dangerous operation state according to the system network architecture; (S8) the sixth step and the seventh step are executed circularly until all protection devices are examined. According to the method, the possibility that key equipment is badly damaged when the primary equipment operates without protection can be lowered.
Description
Technical field
The present invention relates to utilize secondary device communications status to realize the method for primary equipment state self diagnosis in a kind of power system transformer substation monitoring.
Background technology
In modern society, electric power system is the important infrastructure that ensures the normal operation of national economy, and the large-area power-cuts fault of electric power system will directly 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 that electric power system is analyzed, monitored.Especially along with the improving constantly of computer technology, the communication technology, automatization level, electric substation automation system is more next obviously to power system security, importance stable, economical operation.
Primary equipment in power system transformer substation monitoring refers to the directly all devices relevant with high-pressure side, 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 serious state, also comprises that losing unknown state while communicate by letter and primary equipment with observing and controlling, protective device loses the dangerous running status while protecting; Secondary device in power system transformer substation monitoring refers to protective device and measure and control device and automation equipment, at this, refers in particular to protective device and measure and control device; In power system transformer substation monitoring, secondary device communications status refers to the signal intelligence of supervisory control system and secondary device, comprises that communicating interrupt and communication are 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; the particularly protection after Microcomputer, digitlization, the measure and control device (secondary device of transformer station; be mainly protective device and measure and control device and automation equipment, call secondary device in the following text) realized traditional relay and senior automation function that manually control cannot realize.The Microcomputer Protection of electric power system is according to function comprise tranformer protection, bus protection, line protection, capacitor protection, the protection for feed line etc. different from object of protection of realizing; Measure and control device major function is that analog quantity, the switching values such as voltage, electric current, power and the position signalling of stand interior transformer, switch, circuit, guard signal are gathered, and also comprises synchronous device simultaneously.The stability of protective device and measure and control device operation 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.Thereby the communications status of secondary device and supervisory control system has very important impact to primary equipment state self diagnosis in transformer station in transformer station.
There is following problem in existing transforming plant primary equipment condition diagnosing system: in network communication error situation, can not play a role.
Summary of the invention
Technical problem to be solved by this invention; just be to provide a kind of diagnose primary equipment state in electric power system with secondary device communications status method; no matter whether network communication error can effectively play a role; improve operations staff to measure and control device, the protective device understanding to harm to the system when with 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 that the badly damaged accident of key equipment occurs when primary equipment moves in the situation that not have to protect.
Solve the problems of the technologies described above, the present invention adopts following technical scheme:
In electric power system, by a method for secondary device communications status diagnosis primary equipment state, it is characterized in that comprising the following steps:
S1 reads power system network structure configuration 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 undesired, the primary equipment state of demarcating this measure and control device measurement according to power system network structure is unknown state;
S2 is to step S4 for S5 circulation execution step, until the inspection of all measure and control devices is complete;
S6 reads the communications status of a protective device and supervisory control system from system;
If S7 communications status is undesired, the primary equipment state of demarcating this protective device protection according to power system network structure is dangerous running status;
S8 follows bad execution step S6 to step S7, until the inspection of all protective devices is complete.
If all measure and control devices of S9 and protective device and supervisory control system communications status all normally in electric power system primary equipment all working properly, otherwise there is the primary equipment of unusual condition for undesired and diagnosis.
The method of reading system network configuration configuration data from configuration file of described step S1 is: first form configuration file, after system operation, read this configuration file, obtain system network architecture.
The method of the communications status that reads 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 by the existing method of supervisory control system, obtain the communications status of this measure and control device and supervisory control system.
The whether normal method of the 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 only just shows that in running status this measure and control device language supervisory control system communication is normal.
If the communications status of described step S4 is undesired, according to system network architecture, demarcating the method that primary equipment state that this measure and control device measures is unknown state is: if the communicating by letter in non-operating state (namely in halted state or init state) of measure and control device and supervisory control system, according to network configuration, the primary equipment that this measure and control device is measured is found in configuration, 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, S2 is to step S4 for circulation execution step, until the method that all measure and control devices are disposed is: all measure and control devices are all processed one time to the method for step S4 according to step S2, calibrated all primary equipments in unknown state in system.
In described step S6, the method that reads the communications status of a protective device and supervisory control system from system is: from system, read a protective device, and by systems approach, obtain the communications status of this protective device and supervisory control system.
In described step S7; if communications status is undesired; according to system network architecture, demarcating the method that the primary equipment state of this protective device protection is dangerous running status is: check protection device is communicated by letter in running status with supervisory control system, and the running status of the primary equipment of protecting in the protective device of non-operating state is set to dangerous running status.
In described step S8; S6 is to step S7 for circulation execution step; until the method that all protective devices are disposed is: all protective devices are all processed one time to the method for step S7 according to step S6, calibrated all primary equipments in dangerous running status in system.
Advantage of the present invention and good effect are:
The present invention proposes the method for utilizing secondary device communications status to realize primary equipment state self diagnosis, tool has the following advantages and good effect:
(1) solve the problem that existing transforming plant primary equipment condition diagnosing system can not play a role in network communication error situation.
(2) improve operations staff to measure and control device, the protective device understanding to harm to the system when with supervisory control system communications status mistake.
(3) reduce the possibility that the badly damaged accident of key equipment occurs when primary equipment moves in the situation that there is no protection.
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 in a kind of electric power system, to utilize secondary device communications status to realize the method for primary equipment state self diagnosis, realizes primary equipment state and carries out self diagnosis processing, 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, after system operation, read this configuration file, obtain system network architecture.
2, from system, read the communications status of a measure and control device and supervisory control system
The method of the communications status that reads 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 by systems approach, obtain the communications status of this measure and control device and supervisory control system.
3, check that whether measure and control device communications status is normal
The whether normal method of the 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 only just shows that in running status this measure and control device language supervisory control system communication is normal.
If 4 communications status are undesired, the primary equipment state of demarcating this measure and control device measurement according to system network architecture is unknown state
If the communications status of described step 4 is undesired, according to system network architecture, demarcating the method that primary equipment state that this measure and control device measures is unknown state is: if the communicating by letter in non-operating state (namely in halted state, init state etc.) of measure and control device and supervisory control system, according to network configuration, the primary equipment of this measure and control device measurement is just known in configuration; The running status that occurs the primary equipment that this situation is just measured this measure and control device is demarcated as unknown state.
5, circulation execution step (2) is to step (4), until all measure and control devices are disposed
The circulation execution step (2) of described step 5 is to step (4), until the method that all measure and control devices are disposed is: all measure and control devices are all processed one time according to step (2) to the method for step (4), just can be calibrated all primary equipments in unknown state in system.
6, from system, read the communications status of a protective device and supervisory control system
The method of the communications status that reads a protective device and supervisory control system from system of described step 6 is: from system, read a protective device, and by systems approach, obtain the communications status of this protective device and supervisory control system.
If 7 communications status are undesired, the primary equipment state of demarcating this protective device protection according to system network architecture is dangerous running status
If the communications status of described step 7 is undesired; according to system network architecture, demarcating the method that the primary equipment state of this protective device protection is dangerous running status is: check protection device is communicated by letter in running status with supervisory control system, and the running status of the primary equipment of protecting in the protective device of non-operating state is set to dangerous running status.
8, circulation execution step (6) is to step (7), until all protective devices are disposed
The circulation execution step (6) of described step 8 is to step (7); until the method that all protective devices are disposed is: all protective devices are all processed one time according to step (6) to the method for step (7), calibrated all primary equipments in dangerous running status in system.
Claims (7)
1. in electric power system, with secondary device communications status, diagnose a method for primary equipment state, it is characterized in that comprising the following steps:
S1 reads power system network structure configuration data from the supervisory control system configuration file of electric power system, in this configuration file, includes 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 undesired, the primary equipment state of demarcating this measure and control device measurement according to power system network structure is unknown state;
S2 is to step S4 for S5 circulation execution step, until the inspection of all measure and control devices is complete;
S6 reads the communications status of a protective device and supervisory control system from system;
If S7 communications status is undesired, the primary equipment state of demarcating this protective device protection according to power system network structure is dangerous running status;
S8 follows bad execution step S6 to step S7, until the inspection of all protective devices is complete;
If all measure and control devices of S9 and protective device and supervisory control system communications status all normally in electric power system primary equipment all working properly, otherwise there is the primary equipment of unusual condition for undesired and diagnosis.
2. in electric power system according to claim 1, with secondary device communications status, diagnose the method for primary equipment state, it is characterized in that: described step S1 comprises following sub-step: first form configuration file, after system operation, read this configuration file, obtain system network architecture.
3. in electric power system according to claim 1, with secondary device communications status, diagnose the method for primary equipment state, it is characterized in that: described step S2 comprises following sub-step: from system, read a measure and control device, by the existing method of supervisory control system, obtain the communications status of this measure and control device and supervisory control system.
4. in electric power system according to claim 1, with secondary device communications status, diagnose the method for primary equipment state, 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 only just shows that in running status this measure and control device language supervisory control system communication is normal.
5. in electric power system according to claim 1, with secondary device communications status, diagnose the method for primary equipment state, it is characterized in that: described step S4 is: if the communicating by letter in non-operating state of measure and control device and supervisory control system, according to network configuration, the primary equipment that this measure and control device is measured is found in configuration, and the running status of the primary equipment that this measure and control device is measured is demarcated as unknown state.
6. in electric power system according to claim 1, with secondary device communications status, diagnose the method for primary equipment state; it is characterized in that: described step S6 comprises following sub-step: from system, read a protective device, by systems approach, obtain the communications status of this protective device and supervisory control system.
7. in electric power system according to claim 1, with secondary device communications status, diagnose the method for primary equipment state; it is characterized in that: described step S7 is: check protection device is communicated by letter in running status with supervisory control system, the running status of the primary equipment of protecting in the protective device of non-operating state is set to dangerous running status.
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| CN201410242895.XA CN104079067B (en) | 2014-06-03 | 2014-06-03 | By the method for secondary device communications status diagnosis primary equipment state in electric power system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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| 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 |
| JP2012150686A (en) * | 2011-01-20 | 2012-08-09 | Mitsubishi Heavy Ind Ltd | Plant safety design support device and plant monitoring/maintenance support device |
| 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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Patent Citations (4)
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| 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 |
| JP2012150686A (en) * | 2011-01-20 | 2012-08-09 | Mitsubishi Heavy Ind Ltd | Plant safety design support device and plant monitoring/maintenance support device |
| 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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| 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 |
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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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