CN106093636B - The analog quantity check method and device of the secondary device of smart grid - Google Patents
The analog quantity check method and device of the secondary device of smart grid Download PDFInfo
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The present invention discloses the analog quantity check method and device of a kind of secondary device of smart grid.Wherein, which comprises manually or with the analog quantity of at least one equipment in smart grid described in preset period automatic-calling；Three-phase equilibrium degree, the consistency of main-apparatus protection, single protection are checked according to analog quantity, preset analog quantity threshold value and preset check rule and the consistency of bus differential protection, whether analog quantity change rate is out-of-limit and whether analog quantity is out-of-limit, obtain check result；Warning information is generated according to the check result, and the check result and the warning information are sent in database and are stored.Through the invention, the workload and artificial nucleus that can substantially reduce live operation maintenance personnel verification find error rate, improve work efficiency.
Description
Technical field
The present invention relates to the monitoring fields of smart grid secondary device, and in particular, to a kind of the secondary of smart grid is set
Standby analog quantity check method and device.
Background technique
Smart grid is to realize the long-term sustainable development of economy and society to solve energy and environmental problem, with can
During the renewable sources of energy replace non-renewable energy resources, the prerequisite comprehensively control means of electric system.Involved by smart grid
Content it is very extensive, such as the access of distributed generation resource (wind power generation, solar power generation), Power System Intelligent control technology
(intelligent substation, intelligent scheduling etc.), intelligent primary equipment (intelligent transformer, intelligent breaker etc.), intelligent secondary device (are protected
Shield, oscillograph etc.) etc., it is the leader of mankind's new technology revolution.
Secondary device on-line monitor is to realize that (such as relay is protected to the secondary device being distributed in each substation
The devices such as shield, oscillograph) remote automation monitoring and management are carried out, by the substation system and dispatching terminal that are distributed in transformer substation end
Main station system two parts composition.Under normal circumstances, dispatching terminal is sent on after the operating status that substation passes through monitoring power transformation station equipment
Main website finds that faulty equipment simultaneously notifies operation maintenance personnel to carry out defect elimination processing to grasp the operating condition of equipment in real time in time, can be with
Effectively prevention or reduction power grid major accident occurs；After electric network fault, substation system collects the movement of relay protection device automatically
Information simultaneously uploads main website, and dispatching terminal main website can also obtain failure to power transformation station equipment through substation by manual transmitting order to lower levels mode
Information data, professional artificially carry out power grid accident and relay protection analysis of operative action etc. according to the information being collected into.Two
Secondary device in-service monitoring substantially increases professional to the automatic management level of substation equipment.
It is to mitigate live work to improve the grasp to equipment operating condition that relay protection profession, which makes an inspection tour the advanced application of work,
Make the workload of personnel, and promote lean degree and real-time that profession makes an inspection tour work, to further promote relay protection
Performance factor.The secondary device repair based on condition of component that function can be monitored on-line based on secondary device state for subsequent real realization provides
Basis, and pass through the on-line monitoring and repair based on condition of component of secondary device, the definite value and logicality detection project of maintenance are weakened, to drop
Minimum living protects the overhauling project of the routine test of class device, solves the problems, such as that power off time is short and is difficult to meet repair time requirement.And
Maintenance difficulty is reduced, O&M integration job requirement is adapted to, reduces the technical difficulty that operation maintenance personnel is engaged in professional service work, from
And the value of relay protection fault information processing system is played to the greatest extent, promote the lean of relay protection specialized management
It is horizontal.
Effectively to prevent important relay fail caused by controllable factor, stabilization of power grids malicious event and the larger face of power grid are prevented
Product power outage, by unified management standard, uniform technical standards, unified operation or work standard, according to management overall process, the full side of maintenance
Zero loophole of control, zero omission of responsibility, zero doubtful point of equipment, operation homodyne are realized in the protection apparatus management/control requirement that position, state are controlled entirely
Wrong Thoughts, the comprehensive development protection profession of grid requirements make an inspection tour work, it is intended to protection equipment running status is controlled comprehensively,
Profession tour work mainly includes regular inspection, annual test, the inspection of key foundation information, daily tour, profession is maked an inspection tour, " N-1 " risk is commented
Estimate with early warning, equipment health state evaluation etc..
With the big fusion of secondary profession and the continuous development of power grid scale, the professional range that secondary teams and groups are engaged in is increasingly
Extensively, workload is also increasing, and the contradiction between teams and groups' workload and bearing capacity is also more and more prominent.In addition, professional at present
Making an inspection tour work, mainly manually regular inspection is completed, and can not find the hidden trouble of equipment of pilot process in time.And the effect that profession is maked an inspection tour
There is certain relationship with the sense of responsibility and technical level of operational staff, is easy to appear deviation.Therefore, by the profession of people power
It makes an inspection tour work and has had reached a bottleneck, can not there is further development, there is an urgent need to new technological means to be promoted specially
Industry makes an inspection tour the lean degree and real-time of work, mitigates the operating pressure of personnel.
Summary of the invention
The object of the present invention is to provide the analog quantity check methods and device of a kind of secondary device of smart grid.Its
In, the method provided through the invention, the error rate that the workload of live operation maintenance personnel verification can be substantially reduced and manually verified,
It improves work efficiency.
To achieve the goals above, the present invention provides a kind of analog quantity check method of the secondary device of smart grid.Institute
The method of stating includes:
Manually or with the analog quantity of at least one equipment in smart grid described in preset period automatic-calling；
Three-phase equilibrium degree, main-apparatus protection are checked according to analog quantity, preset analog quantity threshold value and preset rule of checking
Consistency, list is protected and the consistency of bus differential protection, whether analog quantity change rate is out-of-limit and whether analog quantity is out-of-limit, obtains school
Core result；
Warning information is generated according to the check result, and the check result and the warning information are sent to data
It is stored in library.
Optionally, three-phase equilibrium degree is checked according to the analog quantity, preset analog quantity threshold value and preset check rule,
Include:
It whether include imaginary point in the analog quantity result that check protection equipment is responded；
In the case where not including imaginary point in checking the analog quantity result, imaginary point is calculated according to analog quantity；
Judge whether three-phase amplitude and phase angle balance according to imaginary point；
In the case where judging three-phase amplitude and the unbalanced situation of phase angle, three-phase imbalance warning information is generated, and judgement is tied
Fruit and warning information, which are sent in database, to be stored.
Optionally, the consistent of main-apparatus protection is checked with preset rule of checking according to analog quantity, preset analog quantity threshold value
Property, comprising:
It is automatic extract with the respective three-phase current of protections multiple under active and standby protection under primary equipment or the same interval,
Voltage model, and semanteme is automatically analyzed, the model of each equipment is matched, the one-to-one relationship of two equipment room models is formed；
Disposably the analog quantity sampled value of each protective device is called to be adopted according to the one-to-one relationship of model in batches
The consistency of sample value is checked；
In the case where being greater than given threshold to ratio error, inconsistent processing is pressed, generation warning information, and by checked result
It is sent in database and stores with warning information.
Optionally, single protection is checked according to analog quantity, preset analog quantity threshold value and preset check rule to protect with female difference
The consistency of shield, comprising:
Automatically it extracts in each interval protection and bus differential protection and is respectively spaced the three-phase current model of branch, and automatically analyze language
Justice reaches the one-to-one relationship of model and the voltage model of each interval protection between each spacing devices and each branch of bus differential protection
Directly one-to-one relationship is formed with the voltage model of bus differential protection；
The analog quantity sampled value of each interval protection and bus differential protection device is disposably called in batches, it is a pair of according to the one of model
It should be related to, carry out the consistency verification of sampled value；
In the case where being greater than given threshold to ratio error, inconsistent processing is pressed, generation warning information, and by checked result
It is sent in database and stores with warning information.
Optionally, checking analog quantity change rate according to analog quantity, preset analog quantity threshold value and preset check rule is
It is no out-of-limit, comprising:
In the case where monitoring is labeled as 2 or 3, two sub-values before and after analog quantity are compared, change rate is greater than the threshold values of setting,
Warning information is then generated, and comparing result and warning information are sent in database and stored.
It is optionally, whether out-of-limit according to analog quantity, preset analog quantity threshold value and preset check rule check analog quantity,
Include:
In the case where monitoring is labeled as 1 or 3, check whether the analog value of secondary device has crossed the maximum value of setting
And minimum value, it crosses, then generates warning information, and inspection result and warning information are sent in database and stored.
Optionally, the method also includes:
Check result and warning information are shown with visual form, and support leading for check result and warning information
Out and print.
Correspondingly, the present invention also provides a kind of analog quantity capacity checking devices of the secondary device of smart grid.Described device packet
It includes:
Unit is called, for manually or with the mould of at least one equipment in smart grid described in preset period automatic-calling
Analog quantity；
Unit is checked, for checking three-phase equilibrium according to analog quantity, preset analog quantity threshold value and preset check rule
It spends, the consistency of main-apparatus protection, list is protected and the consistency of bus differential protection, whether analog quantity change rate is out-of-limit and analog quantity is
It is no out-of-limit, obtain check result；
Transmission unit, for generating warning information according to the check result, and by the check result and the alarm
Information is sent in database and stores.
Optionally, the check unit, is specifically used for:
It whether include imaginary point in the analog quantity result that check protection equipment is responded；
In the case where not including imaginary point in checking the analog quantity result, imaginary point is calculated according to analog quantity；
Judge whether three-phase amplitude and phase angle balance according to imaginary point；
In the case where judging three-phase amplitude and the unbalanced situation of phase angle, three-phase imbalance warning information is generated, and judgement is tied
Fruit and warning information, which are sent in database, to be stored.
Optionally, the check unit, is also used to:
It is automatic extract with the respective three-phase current of protections multiple under active and standby protection under primary equipment or the same interval,
Voltage model, and semanteme is automatically analyzed, the model of each equipment is matched, the one-to-one relationship of two equipment room models is formed；
Disposably the analog quantity sampled value of each protective device is called to be adopted according to the one-to-one relationship of model in batches
The consistency of sample value is checked；
In the case where being greater than given threshold to ratio error, inconsistent processing is pressed, generation warning information, and by checked result
It is sent in database and stores with warning information.
As shown from the above technical solution, manually or at least equipment in preset period automatic-calling smart grid
Analog quantity；And three-phase equilibrium degree, main-apparatus protection are checked according to analog quantity, preset analog quantity threshold value and preset rule of checking
Consistency, list is protected and the consistency of bus differential protection, whether analog quantity change rate is out-of-limit and whether analog quantity is out-of-limit, obtains school
Core result；And warning information is generated according to check result, and check result and warning information are sent in database and stored,
The error rate that the workload of live operation maintenance personnel verification can be substantially reduced and manually verified, improves work efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these figures.
Fig. 1 is the flow chart of the analog quantity check method of the secondary device for the smart grid that one embodiment of the invention provides；
Fig. 2 is the flow chart of analog quantity comparison and alarm process in one embodiment of the invention；
Fig. 3 is the flow chart of analog quantity comparison and alarm process in one embodiment of the invention；
Fig. 4 is the structural representation of the analog quantity capacity checking device of the secondary device for the smart grid that one embodiment of the invention provides
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the flow chart of the analog quantity check method of the secondary device for the smart grid that one embodiment of the invention provides.
As shown in Figure 1, the analog quantity check method of the secondary device for the smart grid that one embodiment of the invention provides includes:
In step s101, manually or with the mould of at least one equipment in smart grid described in preset period automatic-calling
Analog quantity.
Wherein, support that selecting one or more equipment by hand carries out analog quantity calling, also supports setting batch device automatic
Carry out the calling of analog quantity period.
Then, in step s 102, three-phase is checked according to analog quantity, preset analog quantity threshold value and preset check rule
The degree of balance, the consistency of main-apparatus protection, list are protected and whether the consistency of bus differential protection, analog quantity change rate are out-of-limit and simulate
Whether amount is out-of-limit, obtains check result.
Wherein, preset analog quantity threshold value includes maximum value, minimum value, imaginary point label, the prison of the analog quantity of secondary device
Sighting target note, latest value change threshold value, and imaginary point label refers to whether analog quantity is imaginary point, and 0 indicates non-imaginary point, and 1 indicates imaginary point
3U0,2 indicate imaginary point 3I0.Monitoring label, 0 indicates not monitor, 1 indicates to indicate to change by latest value by the monitoring of setting bound, 2
Rate monitoring, 3 are indicated by setting bound and the monitoring of latest value change rate.Preset check rule includes when checking to start for the first time
Between, check the period, check three-phase equilibrium degree, main-apparatus protection, single protection and bus differential protection consistency check.
Fig. 2 is the flow chart of analog quantity comparison and alarm process in one embodiment of the invention.As shown in Fig. 2, specifically, root
Three-phase equilibrium degree is checked according to the analog quantity, preset analog quantity threshold value and preset check rule, comprising: check protection equipment
It whether include imaginary point in the analog quantity result of response；In the case where not including imaginary point in checking the analog quantity result, root
Imaginary point is calculated according to analog quantity；Judge whether three-phase amplitude and phase angle balance according to imaginary point；Judging three-phase amplitude and phase angle
In unbalanced situation, three-phase imbalance warning information is generated, and judging result and warning information are sent in database and deposited
Storage.
Fig. 3 is the flow chart of analog quantity comparison and alarm process in one embodiment of the invention.As shown in figure 3, specifically, root
According to analog quantity, preset analog quantity threshold value and the preset consistency checked rule and check main-apparatus protection, comprising: automatic extraction is same
The respective three-phase current of multiple protections, voltage model under active and standby protection or the same interval under a primary equipment, and automatically analyze
Semanteme matches the model of each equipment, forms the one-to-one relationship of two equipment room models.For example, the A phase voltage pair of A protection
The A phase voltage for answering B to protect.Then, the analog quantity sampled value for disposably calling each protective device in batches, it is a pair of according to the one of model
It should be related to, carry out the consistency verification of sampled value；It is raw by inconsistent processing in the case where being greater than given threshold to ratio error
At warning information, and checked result and warning information are sent in database and stored.
As shown in figure 3, the 110kV of 220kV substation is protected, and due to being that single set configures, no verification benchmark, therefore use interval
Each sampled value verification mode for corresponding to the interval in each sampled value and bus differential protection is protected to execute.According to analog quantity, preset mould
Analog quantity threshold value and the preset consistency checked rule and check single protection and bus differential protection, comprising: extract each interval protection automatically
And the three-phase current model of branch is respectively spaced in bus differential protection, and automatically analyze semanteme, reach each spacing devices and bus differential protection
Between each branch the one-to-one relationship of model and the voltage model of each interval protection directly with the voltage model shape of bus differential protection
At one-to-one relationship.For example, the A phase current of the interval A protection corresponds to the branch current of bus differential protection interval A.Then, disposably
Batch calls the analog quantity sampled value of each interval protection and bus differential protection device to be adopted according to the one-to-one relationship of model
The consistency of sample value is checked；In the case where being greater than given threshold to ratio error, by inconsistent processing, warning information is generated, and
Checked result and warning information are sent in database and stored.
As shown in Fig. 2, checking analog quantity change rate according to analog quantity, preset analog quantity threshold value and preset check rule
It is whether out-of-limit, comprising: in the case where monitoring is labeled as 2 or 3, two sub-values before and after analog quantity to be compared, change rate is greater than setting
Threshold values, then generate warning information, and comparing result and warning information are sent in database and stored.
As shown in Fig. 2, checking whether analog quantity gets over according to analog quantity, preset analog quantity threshold value and preset check rule
Limit, comprising: in the case where monitoring is labeled as 1 or 3, check whether the analog value of secondary device has crossed the maximum value of setting
And minimum value, it crosses, then generates warning information, and inspection result and warning information are sent in database and stored.
Preferably, the method also includes: check result and warning information are shown with visual form, and supported
The export and printing of check result and warning information.Whereby, the workload for being conducive to mitigate maintenance personnel, improves maintenance personnel's
Working efficiency.
The present embodiment passes through manually or with the analog quantity of at least one equipment in preset period automatic-calling smart grid；
And according to analog quantity, preset analog quantity threshold value and it is preset check rule check three-phase equilibrium degree, main-apparatus protection consistency,
Single protection with the consistency of bus differential protection, whether analog quantity change rate out-of-limit and whether analog quantity out-of-limit, obtain check result；
And warning information is generated according to check result, and check result and warning information are sent in database and stored, it can be significantly
The error rate for reducing the workload of live operation maintenance personnel verification and manually verifying, improves work efficiency.
For embodiment of the method, for simple description, therefore, it is stated as a series of action combinations, but this field
Technical staff should be aware of, and embodiment of that present invention are not limited by the describe sequence of actions, because implementing according to the present invention
Example, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know that, specification
Described in embodiment belong to preferred embodiment, the actions involved are not necessarily necessary for embodiments of the present invention.
Fig. 4 is the structural representation of the analog quantity capacity checking device of the secondary device for the smart grid that one embodiment of the invention provides
Figure.As shown in figure 4, the analog quantity capacity checking device of the secondary device for the smart grid that one embodiment of the invention provides includes:
Unit 201 is called, for manually or with an at least equipment in smart grid described in preset period automatic-calling
Analog quantity；
Unit 202 is checked, it is equal for checking three according to analog quantity, preset analog quantity threshold value and preset check rule
Whether weighing apparatus degree, the consistency of main-apparatus protection, single protection and the consistency of bus differential protection, analog quantity change rate out-of-limit and analog quantity
It is whether out-of-limit, obtain check result；
Transmission unit 203, for generating warning information according to the check result, and by the check result and the announcement
Alert information, which is sent in database, to be stored.
In an alternative embodiment disclosed by the invention, the check unit 202 is specifically used for:
It whether include imaginary point in the analog quantity result that check protection equipment is responded；
In the case where not including imaginary point in checking the analog quantity result, imaginary point is calculated according to analog quantity；
Judge whether three-phase amplitude and phase angle balance according to imaginary point；
In the case where judging three-phase amplitude and the unbalanced situation of phase angle, three-phase imbalance warning information is generated, and judgement is tied
Fruit and warning information, which are sent in database, to be stored.
In an alternative embodiment disclosed by the invention, the check unit 202 is also used to:
It is automatic extract with the respective three-phase current of protections multiple under active and standby protection under primary equipment or the same interval,
Voltage model, and semanteme is automatically analyzed, the model of each equipment is matched, the one-to-one relationship of two equipment room models is formed；
Disposably the analog quantity sampled value of each protective device is called to be adopted according to the one-to-one relationship of model in batches
The consistency of sample value is checked；
In the case where being greater than given threshold to ratio error, inconsistent processing is pressed, generation warning information, and by checked result
It is sent in database and stores with warning information.
It should be noted that being further related to for the analog quantity capacity checking device of the secondary device of smart grid provided by the invention
Detail be described in detail in the analog quantity check method of the secondary device of smart grid provided by the invention,
It is not repeating herein.
It should be noted that in all parts of system of the invention, according to the function that it to be realized to therein
Component has carried out logical partitioning, and still, the present invention is not only restricted to this, can according to need all parts are repartitioned or
Person's combination for example, can be single component by some component combinations, or some components can be further broken into more
Subassembly.
Various component embodiments of the invention can be implemented in hardware, or to run on one or more processors
Software module realize, or be implemented in a combination thereof.It will be understood by those of skill in the art that can be used in practice
Microprocessor or digital signal processor (DSP) Lai Shixian according to the system in the embodiment of the present invention in some or all portions
The some or all functions of part.The present invention is also implemented as a part or complete for executing method as described herein
The device or device program (for example, computer program and computer program product) in portion.It is such to realize program of the invention
It can store on a computer-readable medium, or may be in the form of one or more signals.Such signal can be with
It downloads from internet website, is perhaps provided on the carrier signal or is provided in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of several different elements and being come by means of properly programmed computer real
It is existing.In the unit claims listing several devices, several in these devices can be through the same hardware branch
To embody.The use of word first, second, and third does not indicate any sequence.These words can be explained and be run after fame
Claim.
Embodiment of above is only suitable for illustrating the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (5)
1. the analog quantity check method of the secondary device of smart grid, which is characterized in that the described method includes:
Manually or with the analog quantity of at least one equipment in smart grid described in preset period automatic-calling；
According to analog quantity, preset analog quantity threshold value and it is preset check rule check three-phase equilibrium degree, main-apparatus protection it is consistent
Property, single protection with the consistency of bus differential protection, whether analog quantity change rate out-of-limit and whether analog quantity out-of-limit, obtain checking and tie
Fruit；
Warning information is generated according to the check result, and the check result and the warning information are sent in database
Storage；
Three-phase equilibrium degree is checked according to the analog quantity, preset analog quantity threshold value and preset check rule, comprising:
It whether include imaginary point in the analog quantity result that check protection equipment is responded；
In the case where not including imaginary point in checking the analog quantity result, imaginary point is calculated according to analog quantity；
Judge whether three-phase amplitude and phase angle balance according to imaginary point；
In the case where judging three-phase amplitude and the unbalanced situation of phase angle, generate three-phase imbalance warning information, and by judging result and
Warning information is sent in database and stores；
According to analog quantity, preset analog quantity threshold value and the preset consistency checked rule and check main-apparatus protection, comprising:
It is automatic to extract with the respective three-phase current of protections multiple under active and standby protection under primary equipment or the same interval, voltage
Model, and semanteme is automatically analyzed, the model of each equipment is matched, the one-to-one relationship of two equipment room models is formed；
The analog quantity sampled value for disposably calling each protective device in batches carries out sampled value according to the one-to-one relationship of model
Consistency verification；
In the case where being greater than given threshold to ratio error, inconsistent processing is pressed, generation warning information, and by checked result and announcement
Alert information, which is sent in database, to be stored；
Single consistency protected with bus differential protection is checked according to analog quantity, preset analog quantity threshold value and preset rule of checking,
Include:
Automatically it extracts in each interval protection and bus differential protection and is respectively spaced the three-phase current model of branch, and automatically analyze semanteme, reach
Voltage model to the one-to-one relationship of model between each spacing devices and each branch of bus differential protection and each interval protection is direct
One-to-one relationship is formed with the voltage model of bus differential protection；
The analog quantity sampled value for disposably calling each interval protection and bus differential protection device in batches, is closed according to the one-to-one correspondence of model
System carries out the consistency verification of sampled value；
In the case where being greater than given threshold to ratio error, inconsistent processing is pressed, generation warning information, and by checked result and announcement
Alert information, which is sent in database, to be stored；
It is whether out-of-limit that analog quantity change rate is checked according to analog quantity, preset analog quantity threshold value and preset check rule, comprising:
In the case where monitoring is labeled as 2 or 3, two sub-values before and after analog quantity are compared, change rate is greater than the threshold values of setting, then gives birth to
At warning information, and comparing result and warning information are sent in database and stored, wherein 2 indicate to press latest value change rate
Monitoring, 3 are indicated by setting bound and the monitoring of latest value change rate；
It is whether out-of-limit that analog quantity is checked according to analog quantity, preset analog quantity threshold value and preset check rule, comprising:
In the case where monitoring is labeled as 1 or 3, check whether the analog value of secondary device has crossed the maximum value and most of setting
Small value, is crossed, then generates warning information, and inspection result and warning information are sent in database and stored, wherein 1 table
Show by setting bound monitoring, 3 indicate by setting bound and the monitoring of latest value change rate.
2. the analog quantity check method of the secondary device of smart grid according to claim 1, which is characterized in that the side
Method further include:
Show check result and warning information with visual form, and support the export of check result and warning information and
Printing.
3. the analog quantity capacity checking device of the secondary device of smart grid, which is characterized in that described device includes:
Unit is called, for manually or with the simulation of at least one equipment in smart grid described in preset period automatic-calling
Amount；
Unit is checked, for checking three-phase equilibrium degree, master according to analog quantity, preset analog quantity threshold value and preset check rule
The consistency of standby protection, list is protected and the consistency of bus differential protection, whether analog quantity change rate is out-of-limit and whether analog quantity gets over
Limit, obtains check result；
Transmission unit, for generating warning information according to the check result, and by the check result and the warning information
It is sent in database and stores；
Wherein, three-phase equilibrium degree is checked according to the analog quantity, preset analog quantity threshold value and preset check rule, comprising:
It whether include imaginary point in the analog quantity result that check protection equipment is responded；
In the case where not including imaginary point in checking the analog quantity result, imaginary point is calculated according to analog quantity；
Judge whether three-phase amplitude and phase angle balance according to imaginary point；
In the case where judging three-phase amplitude and the unbalanced situation of phase angle, generate three-phase imbalance warning information, and by judging result and
Warning information is sent in database and stores；
According to analog quantity, preset analog quantity threshold value and the preset consistency checked rule and check main-apparatus protection, comprising:
It is automatic to extract with the respective three-phase current of protections multiple under active and standby protection under primary equipment or the same interval, voltage
Model, and semanteme is automatically analyzed, the model of each equipment is matched, the one-to-one relationship of two equipment room models is formed；
The analog quantity sampled value for disposably calling each protective device in batches carries out sampled value according to the one-to-one relationship of model
Consistency verification；
In the case where being greater than given threshold to ratio error, inconsistent processing is pressed, generation warning information, and by checked result and announcement
Alert information, which is sent in database, to be stored；
Single consistency protected with bus differential protection is checked according to analog quantity, preset analog quantity threshold value and preset rule of checking,
Include:
Automatically it extracts in each interval protection and bus differential protection and is respectively spaced the three-phase current model of branch, and automatically analyze semanteme, reach
Voltage model to the one-to-one relationship of model between each spacing devices and each branch of bus differential protection and each interval protection is direct
One-to-one relationship is formed with the voltage model of bus differential protection；
The analog quantity sampled value for disposably calling each interval protection and bus differential protection device in batches, is closed according to the one-to-one correspondence of model
System carries out the consistency verification of sampled value；
In the case where being greater than given threshold to ratio error, inconsistent processing is pressed, generation warning information, and by checked result and announcement
Alert information, which is sent in database, to be stored；
It is whether out-of-limit that analog quantity change rate is checked according to analog quantity, preset analog quantity threshold value and preset check rule, comprising:
In the case where monitoring is labeled as 2 or 3, two sub-values before and after analog quantity are compared, change rate is greater than the threshold values of setting, then gives birth to
At warning information, and comparing result and warning information are sent in database and stored, wherein 2 indicate to press latest value change rate
Monitoring, 3 are indicated by setting bound and the monitoring of latest value change rate；
It is whether out-of-limit that analog quantity is checked according to analog quantity, preset analog quantity threshold value and preset check rule, comprising:
In the case where monitoring is labeled as 1 or 3, check whether the analog value of secondary device has crossed the maximum value and most of setting
Small value, is crossed, then generates warning information, and inspection result and warning information are sent in database and stored, wherein 1 table
Show by setting bound monitoring, 3 indicate by setting bound and the monitoring of latest value change rate.
4. the analog quantity capacity checking device of the secondary device of smart grid according to claim 3, which is characterized in that the school
Nuclear unit is specifically used for:
It whether include imaginary point in the analog quantity result that check protection equipment is responded；
In the case where not including imaginary point in checking the analog quantity result, imaginary point is calculated according to analog quantity；
Judge whether three-phase amplitude and phase angle balance according to imaginary point；
In the case where judging three-phase amplitude and the unbalanced situation of phase angle, generate three-phase imbalance warning information, and by judging result and
Warning information is sent in database and stores.
5. the analog quantity capacity checking device of the secondary device of smart grid according to claim 3, which is characterized in that the school
Nuclear unit is also used to:
It is automatic to extract with the respective three-phase current of protections multiple under active and standby protection under primary equipment or the same interval, voltage
Model, and semanteme is automatically analyzed, the model of each equipment is matched, the one-to-one relationship of two equipment room models is formed；
The analog quantity sampled value for disposably calling each protective device in batches carries out sampled value according to the one-to-one relationship of model
Consistency verification；
In the case where being greater than given threshold to ratio error, inconsistent processing is pressed, generation warning information, and by checked result and announcement
Alert information, which is sent in database, to be stored.
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| CN106771730A (en) * | 2016-12-06 | 2017-05-31 | 广东电网有限责任公司电力调度控制中心 | The intelligent substation real-time calibration equipment of protection device analog quantity sampling circuit and method |
| CN109255445A (en) * | 2018-08-22 | 2019-01-22 | 中国南方电网有限责任公司 | A kind of intelligent periodical inspection method of the protective device based on multi-source data analysis |
| CN109270379B (en) * | 2018-10-11 | 2021-01-12 | 国网浙江省电力公司湖州供电公司 | In-situ relay protection embedded test method capable of switching protection function |
| CN112485723B (en) * | 2020-09-15 | 2022-12-02 | 国网浙江省电力有限公司湖州供电公司 | Intelligent power monitoring method and system |
| CN114296427B (en) * | 2021-12-13 | 2024-03-26 | 国网山东省电力公司电力科学研究院 | Remote secondary equipment analog intelligent diagnosis method based on dispatching master station |
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