CN106771730A - The intelligent substation real-time calibration equipment of protection device analog quantity sampling circuit and method - Google Patents
The intelligent substation real-time calibration equipment of protection device analog quantity sampling circuit and method Download PDFInfo
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- CN106771730A CN106771730A CN201611107345.2A CN201611107345A CN106771730A CN 106771730 A CN106771730 A CN 106771730A CN 201611107345 A CN201611107345 A CN 201611107345A CN 106771730 A CN106771730 A CN 106771730A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention discloses a kind of real-time calibration equipment of intelligent substation protection device analog quantity sampling circuit and method; including parsing module, configuration module, sampling module, judge module and output module; the configuration module is connected with parsing module, judge module respectively; the judge module is connected with sampling module, output module respectively, wherein：Parsing module is used to parse the SCD file of intelligent substation, extracts the IED list of devices in SCD file；Configuration module is spaced according to belonging to IED list of devices configures each IED equipment, and IED equipment is classified according to interval；Sampling module obtains the analog measurement data of each IED equipment from station level；Judge module is used to carry out redundancy check to the analog quantity loop of each IED equipment in interval；Output module will determine that the judged result of module carries out output display.The detection speed during analog quantity loop fault of protection device is improved, the reliability of protection device is improved, it is ensured that the overall power supply reliability of power network.
Description
Technical field
The present invention relates to a kind of real-time calibration equipment of intelligent substation protection device analog quantity sampling circuit and method.
Background technology
Intelligent substation is patrolled and examined under traditional O＆M pattern, it is necessary to regularly schedule personnel and enter the station, to observe and record guarantor
The state of protection unit and relevant apparatus, and its running status is estimated, arrive certain time limit, in addition it is also necessary to arrange the inspection that has a power failure
Repair, and regularly safeguarded for protection device and its related secondary circuit.With the expansion of power network scale, it is this patrol and examine and
Repair and maintenance mode causes that manpower and fund cost are greatly improved, and the O＆M pattern such as traditional O＆M or even special dimension is hard to carry on, and
Can not discovering device hidden danger in time.
With electric power safety and the raising of operation cost requirement, existing protection equipment faces reliability and O＆M economy
Contradiction.For the protection equipment of intelligent substation, especially its analog quantity loop, when a problem occurs, it is impossible to timely and effective
Positioning, real-time is poor, reduces the overall power supply reliability of power network.
The content of the invention
Regarding to the issue above, the present invention provide the intelligent substation real-time calibration equipment of protection device analog quantity sampling circuit with
Method, improves the detection speed during analog quantity loop fault of protection device, improves the reliability of protection device, it is ensured that power network is whole
The power supply reliability of body.
To realize above-mentioned technical purpose, above-mentioned technique effect is reached, the present invention is achieved through the following technical solutions：
The intelligent substation protection device real-time calibration equipment of analog quantity sampling circuit, it is characterised in that including parsing module, configuration
Module, sampling module, judge module and output module, the configuration module are connected with parsing module, judge module respectively, described
Judge module is connected with sampling module, output module respectively, wherein：
Parsing module is used to parse the SCD file of intelligent substation, extracts the IED list of devices in SCD file；
Configuration module is spaced according to belonging to IED list of devices configures each IED equipment, and IED equipment is classified according to interval；
Sampling module obtains the analog measurement data of each IED equipment from station level；
Judge module is used to carry out redundancy check to the analog quantity loop of each IED equipment in interval；
Output module will determine that the judged result of module carries out output display.
It is preferred that, analog measurement data include three-phase current sample magnitude, three-phase voltage sample magnitude, synchronous voltage sampling
Amplitude.
When only two IED equipment in an interval, judge module enters to the analog measurement data of two IED equipment
Row is compared, and when the current differential of the corresponding phase of the two is more than predetermined current threshold, then judges this phase current loop exception；When two
When the voltage difference of the corresponding phase of person is more than predeterminated voltage threshold, then this phase voltage loop exception is judged.
When the IED number of devices in an interval is more than 2, judge module chooses the simulation of one of IED equipment
Amount measurement data is compared as reference data and with the analog measurement data of other IED equipment in interval, works as difference
When being all higher than preset threshold, then this phase loop exception is judged.
Intelligent substation protection device analog quantity sampling circuit real time checking method, it is characterised in that comprise the following steps：
Step 1, according to the SCD file of intelligent substation obtain intelligent substation in all of IED facility informations；
Step 2, according to the affiliated interval information of IED equipment, IED equipment is classified by interval；
Step 3, in station level, obtain the analog measurement data of each IED equipment in interval in real time using MMS stipulations；
Step 4, the redundancy check that amount measurement data is simulated to the IED equipment in each interval；
Step 5, according to check results, the analog quantity loop health status of the IED equipment in output gap.
It is preferred that, in step 1, IED equipment includes protection equipment, measuring and controlling equipment, recording wave device；In step 3, analog measurement
Data include three-phase current sample magnitude, three-phase voltage sample magnitude, synchronous voltage sample magnitude.
It is preferred that, in step 2, IED equipment is classified by interval, including line segregation, mother interval, main transformer interval,
Breaker interval, virtual bus interval, virtual main transformer interval.
When only two IED equipment in an interval, the analog measurement data to two IED equipment are compared,
When the current differential of the corresponding phase of the two is more than predetermined current threshold, then this phase current loop exception is judged；It is right when the two
When answering the voltage difference of phase to be more than predeterminated voltage threshold, then this phase voltage loop exception is judged；
When the IED number of devices in an interval is more than 2, the analog measurement data for choosing one of IED equipment are made
On the basis of data and compare with the analog measurement data of other IED equipment in interval, when difference is all higher than pre- gating
During sill, then this phase loop exception is judged.
The beneficial effects of the invention are as follows：
The intelligent substation real-time calibration equipment of protection device analog quantity sampling circuit and method, by extracting intelligent substation SCD
IED equipment in model, forms IED list of devices, and IED equipment is classified according to interval, to the IED in same interval
The analog measurement signal of station level is sent in equipment carries out redundancy check, and then judges that the analog quantity of this interval IED equipment is returned
Line state.A kind of intelligent substation protection device analog quantity sampling circuit real time checking method of the present invention and device, can be effective
, quickly detect the analog quantity loop exception of intelligent substation protection equipment, accurate alert points out O＆M
Personnel carry out repair based on condition of component, improve the reliability of protection device, it is ensured that the overall power supply reliability of power network.
Brief description of the drawings
Fig. 1 is the structured flowchart of the real-time calibration equipment of intelligent substation protection device analog quantity sampling circuit of the present invention；
Fig. 2 is the schematic flow sheet of intelligent substation protection device analog quantity sampling circuit real time checking method of the present invention.
Specific embodiment
Technical solution of the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that ability
The technical staff in domain can be better understood from the present invention and can be practiced, but illustrated embodiment is not as to limit of the invention
It is fixed.
The intelligent substation protection device real-time calibration equipment of analog quantity sampling circuit, as shown in figure 1, including parsing module,
Configuration module, sampling module, judge module and output module, the configuration module are connected with parsing module, judge module respectively,
The judge module is connected with sampling module, output module respectively, output of the judge module according to configuration module and sampling module
Simulation amount sampling circuit judges that the concrete function of each module is as follows in real time：
Parsing module is used to parse the SCD file of intelligent substation（SCD is substation in transformer substation IEC 61850 standard
The abbreviation of configuration discription, i.e. whole station CONFIG.SYS）, extract the IED equipment in SCD file
（IED is the abbreviation of Intelligent Electronic Device, is intelligent electronic device）List, it is general, can be offline
Intelligent substation SCD file is obtained, and without obtaining online, parses all of IED facility informations in SCD file, including
Protection equipment, measuring and controlling equipment, recording wave device.
Configuration module is spaced according to belonging to IED list of devices configures each IED equipment, and IED equipment is divided according to interval
Class, carries out classification and specifically includes following steps to IED equipment by interval：
1st, between-line spacing division, including line segregation, mother interval, main transformer interval, breaker interval, virtual mother are entered to primary system
Line is spaced and virtual main transformer interval.
2nd, according to the interval information belonging to IED, IED equipment is classified according to interval.
Sampling module obtains the analog measurement data of each IED equipment, including three-phase current sample magnitude, three from station level
Phase voltage sample magnitude, synchronous voltage sample magnitude.Sampling module includes station level packet parsing module and data memory module,
The station level packet parsing module is used to parse the analog quantity for sending station level in IED equipment sampling message, the data storage
Module is used to store the analog quantity sampling message of IED equipment.
Judge module is used to carry out redundancy check to the analog quantity loop of each IED equipment in interval.
Output module will determine that the judged result of module carries out output display, provide the analog quantity of the IED equipment in interval
Loop health status.Loop health status is divided into health, exception, does not verify.
According to the quantity of IED equipment in interval, redundancy check includes the verification of two parameters and many reference amounts verification, i.e.,：When one
In interval during only two IED equipment, two parameter verifications are carried out：Judge module is to two analog measurement data of IED equipment
Compare, when the current differential of the corresponding phase of the two is more than predetermined current threshold, then judge this phase current loop exception；When
When the voltage difference of the corresponding phase of the two is more than predeterminated voltage threshold, then this phase voltage loop exception is judged.The method is applied to
This interval only has two comparings of reference quantity, such as the single configuration of interval protection, is only capable of obtaining protection device and measure and control device
Measurement data.
When the IED number of devices in an interval is more than 2, many reference amounts verification is carried out：Judge module chooses wherein one
The analog measurement data of individual IED equipment as reference data and with interval in other IED equipment analog measurement data
Compare, when difference is all higher than preset threshold, then judge this phase loop exception.The method is separated with multiple suitable for this
（More than 2）The comparing of reference quantity, such as the double configurations of interval protection, can obtain the measurement of two sets of protection devices and measure and control device
Data.
Power grid accident analysis of cases shows that secondary analog quantity circuit defect is the main original for triggering relay protection system accident
Cause, for a long time, because the related secondary circuit of relay protection is complex, thus cannot be carried out effective, real-time to it
Loop state is detected.And the present invention forms IED list of devices by extracting the IED equipment in intelligent substation SCD models, and
IED equipment is classified according to interval, to sending the analog measurement signal of station level real-time in the IED equipment in same interval
Redundancy check is carried out, and then judges the analog quantity loop state of this interval IED equipment.
It is corresponding, as shown in Fig. 2 intelligent substation protection device analog quantity sampling circuit real time checking method, including such as
Lower step：
Step 1, according to the SCD file of intelligent substation obtain intelligent substation in all of IED facility informations, including protection set
Standby, measuring and controlling equipment, recording wave device.
Step 2, according to the affiliated interval information of IED equipment, IED equipment is classified by interval.Primary system is carried out
Interval divides, including between line segregation, mother interval, main transformer interval, breaker interval, virtual bus interval and virtual main transformer
Every.According to the interval information belonging to IED, IED equipment is classified according to interval, such as the interval of circuit 1 includes：Circuit 1
A set of main protection IED, circuit 1 second set of main protection IED, the observing and controlling IED of circuit 1, the first set combining unit IED of circuit 1, circuit 1
Second set of combining unit IED, the first set intelligent terminal IED of circuit 1,1 second set of intelligent terminal IED of circuit.
Step 3, in station level, using MMS stipulations（Manufacturing Message Specifcation：MMS specifications
Industrial circle has the intelligence sensor of communication capacity, an intelligent electronic device（IED）, intelligent control device communication behavior,
Use between the equipment of different manufacturers have interoperability）The analog measurement number of each IED equipment in interval is obtained in real time
According to.
Such as, it is spaced for circuit 1, the first set main protection IED of circuit 1,1 second set of main protection IED of circuit is obtained in real time,
The analog measurement data of the observing and controlling IED devices of circuit 1, wherein analog measurement data include three-phase current sample magnitude, three-phase
Voltage sample amplitude, synchronous voltage sample magnitude.
Step 4, the redundancy check that amount measurement data is simulated to the IED equipment in each interval.
When only two IED equipment in an interval, the analog measurement data to two IED equipment are compared,
When the current differential of the corresponding phase of the two is more than predetermined current threshold, then this phase current loop exception is judged；It is right when the two
When answering the voltage difference of phase to be more than predeterminated voltage threshold, then this phase voltage loop exception is judged；
When the IED number of devices in an interval is more than 2, the analog measurement data for choosing one of IED equipment are made
On the basis of data and compare with the analog measurement data of other IED equipment in interval, when difference is all higher than pre- gating
During sill, then this phase loop exception is judged.
Such as, for interval 1, surveyed using the first set main protection IED of circuit 1, circuit 1 second set of main protection IED, circuit 1
The three-phase current sample magnitude of IED devices is controlled, redundancy check is carried out, the analog measurement data of one of IED equipment are chosen
Compare as reference data and with the analog measurement data of other IED equipment in interval, when difference is all higher than presetting
During threshold, then this phase loop exception is judged.General, it is compared with reference data respectively with other IED equipment in interval, when
When difference is more than preset threshold, then judge that corresponding other IED equipment occur abnormal, but, when with other IED equipment in being spaced
When difference with reference data is all higher than preset threshold, then the corresponding IED equipment of judgment standard data occurs abnormal.
Step 5, according to check results, the analog quantity loop health status of the IED equipment in output gap.
The intelligent substation real-time calibration equipment of protection device analog quantity sampling circuit and method, by extracting intelligent substation
IED equipment in SCD models, forms IED list of devices, and IED equipment is classified according to interval, in same interval
The analog measurement signal of station level is sent in IED equipment carries out redundancy check, and then judges the analog quantity of this interval IED equipment
Loop state.A kind of intelligent substation protection device analog quantity sampling circuit real time checking method of the present invention and device, Neng Gouyou
Effect, the quick analog quantity loop exception for detecting intelligent substation protection equipment, accurate alert points out fortune
Dimension personnel carry out repair based on condition of component, improve the reliability of protection device, it is ensured that the overall power supply reliability of power network.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, be included within the scope of the present invention.
Claims (9)
1. the real-time calibration equipment of intelligent substation protection device analog quantity sampling circuit, it is characterised in that including parsing module, match somebody with somebody
Module, sampling module, judge module and output module are put, the configuration module is connected with parsing module, judge module respectively, institute
Judge module is stated to be connected with sampling module, output module respectively, wherein：
Parsing module is used to parse the SCD file of intelligent substation, extracts the IED list of devices in SCD file；
Configuration module is spaced according to belonging to IED list of devices configures each IED equipment, and IED equipment is classified according to interval；
Sampling module obtains the analog measurement data of each IED equipment from station level；
Judge module is used to carry out redundancy check to the analog quantity loop of each IED equipment in interval；
Output module will determine that the judged result of module carries out output display.
2. the real-time calibration equipment of intelligent substation protection device analog quantity sampling circuit according to claim 1, its feature
It is that analog measurement data include three-phase current sample magnitude, three-phase voltage sample magnitude, synchronous voltage sample magnitude.
3. the real-time calibration equipment of intelligent substation protection device analog quantity sampling circuit according to claim 2, its feature
It is that sampling module includes station level packet parsing module and data memory module, the station level packet parsing module is used for
The analog quantity sampling message of station level, the data memory module are sent in parsing IED equipment is used to store the analog quantity of IED equipment
Sampling message.
4. the real-time calibration equipment of intelligent substation protection device analog quantity sampling circuit according to claim 2, its feature
It is that, when only two IED equipment in an interval, judge module is carried out to the analog measurement data of two IED equipment
Compare, when the current differential of the corresponding phase of the two is more than predetermined current threshold, then judge this phase current loop exception；When the two
Corresponding phase voltage difference be more than predeterminated voltage threshold when, then judge this phase voltage loop exception.
5. the real-time calibration equipment of intelligent substation protection device analog quantity sampling circuit according to claim 2, its feature
It is that, when the IED number of devices in an interval is more than 2, the simulation that judge module chooses one of IED equipment is measured
Amount data are compared as reference data and with the analog measurement data of other IED equipment in interval, when difference is big
When preset threshold, then this phase loop exception is judged.
6. intelligent substation protection device analog quantity sampling circuit real time checking method, it is characterised in that comprise the following steps：
Step 1, according to the SCD file of intelligent substation obtain intelligent substation in all of IED facility informations；
Step 2, according to the affiliated interval information of IED equipment, IED equipment is classified by interval；
Step 3, in station level, obtain the analog measurement data of each IED equipment in interval in real time using MMS stipulations；
Step 4, the redundancy check that amount measurement data is simulated to the IED equipment in each interval；
Step 5, according to check results, the analog quantity loop health status of the IED equipment in output gap.
7. intelligent substation protection device analog quantity sampling circuit real time checking method according to claim 6, its feature
It is that in step 1, IED equipment includes protection equipment, measuring and controlling equipment, recording wave device；In step 3, analog measurement data include
Three-phase current sample magnitude, three-phase voltage sample magnitude, synchronous voltage sample magnitude.
8. intelligent substation protection device analog quantity sampling circuit real time checking method according to claim 6, its feature
It is in step 2, IED equipment to be classified by interval, including line segregation, mother interval, main transformer is spaced, between breaker
Every virtual bus interval, virtual main transformer interval.
9. intelligent substation protection device analog quantity sampling circuit real time checking method according to claim 6, its feature
It is：
When only two IED equipment in an interval, the analog measurement data to two IED equipment are compared, when two
When the current differential of the corresponding phase of person is more than predetermined current threshold, then this phase current loop exception is judged；When the corresponding phase of the two
Voltage difference be more than predeterminated voltage threshold when, then judge this phase voltage loop exception；
When the IED number of devices in an interval is more than 2, the analog measurement data for choosing one of IED equipment are made
On the basis of data and compare with the analog measurement data of other IED equipment in interval, when difference is all higher than pre- gating
During sill, then this phase loop exception is judged.
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| CN108008223A (en) * | 2017-12-06 | 2018-05-08 | 国网江苏省电力公司南通供电公司 | The pouring-in intelligent substation field adjustable method of multiple spot virtual data |
| CN108376966A (en) * | 2018-03-09 | 2018-08-07 | 中国电力科学研究院有限公司 | Intelligent substation anti-misoperation locking logic interval association relationship analysis method and system |
| CN109932596A (en) * | 2019-03-21 | 2019-06-25 | 中国南方电网有限责任公司 | A kind of automatic Check method of protective device |
| CN110045206A (en) * | 2019-04-26 | 2019-07-23 | 紫光测控有限公司 | Redundancy check method and system for protection supervisory equipment nonredundancy AD acquisition |
| CN110470928A (en) * | 2019-07-29 | 2019-11-19 | 北京天能继保电力科技有限公司 | It is a kind of for substation/electrical power distribution automatization system online test method |
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| CN113629876A (en) * | 2021-08-30 | 2021-11-09 | 南方电网科学研究院有限责任公司 | Test system and test method of special inspection module |
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| CN108376966B (en) * | 2018-03-09 | 2022-08-19 | 中国电力科学研究院有限公司 | Method and system for analyzing correlation relationship between misoperation-preventive locking logic intervals of intelligent substation |
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| CN110470928A (en) * | 2019-07-29 | 2019-11-19 | 北京天能继保电力科技有限公司 | It is a kind of for substation/electrical power distribution automatization system online test method |
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| CN110850195A (en) * | 2019-10-18 | 2020-02-28 | 郑州森源新能源科技有限公司 | Detection method and device for chained SVG power module |
| CN110850195B (en) * | 2019-10-18 | 2022-02-22 | 郑州森源新能源科技有限公司 | Detection method and device for chained SVG power module |
| CN113629876A (en) * | 2021-08-30 | 2021-11-09 | 南方电网科学研究院有限责任公司 | Test system and test method of special inspection module |
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Application publication date: 20170531 |