CN106597225B - A kind of power distribution network on-line condition monitoring system and its on-line monitoring method - Google Patents
A kind of power distribution network on-line condition monitoring system and its on-line monitoring method Download PDFInfo
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- CN106597225B CN106597225B CN201611189199.2A CN201611189199A CN106597225B CN 106597225 B CN106597225 B CN 106597225B CN 201611189199 A CN201611189199 A CN 201611189199A CN 106597225 B CN106597225 B CN 106597225B
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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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
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Abstract
The present invention relates to a kind of power distribution network on-line condition monitoring system and its on-line monitoring method, solving compared with prior art can not be to the defect that power distribution network initial data is effectively monitored.The present invention obtains distribution net equipment quantity of state the following steps are included: acquisition quantity of state from distribution network system；The analysis of quantity of state is handled, state quantity data is handled according to quantity of state call format, analog quantity is analyzed, quantity of state is analyzed, non-measured data is analyzed, multi-data source is handled, quality of data code carries out Allocation Analysis, carries out statistics calculation processing；The output of warning information, the case where according to quantity of state deduction of points value, output state amount warning information.The present invention can be realized to multiple high voltage device of transformer station, and the real time monitoring of data is carried out using the differentiated control system form of multiple servers.
Description
Technical field
The present invention relates to power distribution network information technology field, specifically a kind of power distribution network on-line condition monitoring system and its
On-line monitoring method.
Background technique
With the development of distribution scale and the rapid promotion of controller switching equipment quality, distribution net equipment periodic inspection mode is
It is not suitable with the management requirement of power grid and equipment.Each net provincial company has carried out the trial of distribution repair based on condition of component successively according to the actual situation.
The provincial companies such as Hebei, Shandong, Jiangsu, Zhejiang, Hubei have carried out the pilot work of distribution repair based on condition of component.
For specification distribution repair based on condition of component management, it is ensured that distribution safe and reliable operation adapts to current electric grid management and needs, state
Family's grid company determines to carry out the work of distribution repair based on condition of component.The main contents of distribution repair based on condition of component work include information collection, shape
State evaluation, Strategies of Maintenance, maintenance plan, maintenance are implemented, are evaluated and six aspects of examination.The evaluation information source base of equipment state
In the status informations such as inspection and routine test, diagnostic test, live detection, on-line monitoring, bad condition.Equipment state evaluation
Comprehensive phenomenon intensity, magnitude size and development trend make state value judgement.
For the requirement for adapting to distribution repair based on condition of component Automation Construction and operation, the automation of distribution repair based on condition of component and standard are promoted
Change require, meet country, state's network mark it is quasi- under the premise of, meet future development needs, national grid " distribution net equipment state examine
Repair testing regulations ", on the basis of " distribution net equipment repair based on condition of component directive/guide " and " distribution net equipment state evaluation directive/guide ", increase and set for distribution
Standby Condition-based maintenance system provides the method for initial data, in time, completely, accurately provides base for distribution net equipment Condition-based maintenance system
Plinth data promote enterprise's maintenance automation, collection to provide support for the analysis of each link of distribution net equipment repair based on condition of component, decision
Reduction, lean and standardized management are horizontal.
Therefore, how to circuit on power system, transformer, bus, the position of the switch, isolation switch, grounding switch position, guarantor
It protects a series of status datas such as hard contact state and distant place control throwing bounce number and effectively monitor and have become urgent need solution
The technical issues of.
Summary of the invention
The purpose of the present invention is to solve what can not effectively be monitored to power distribution network initial data in the prior art to lack
It falls into, provides a kind of power distribution network on-line condition monitoring system and its on-line monitoring method to solve the above problems.
To achieve the goals above, technical scheme is as follows:
A kind of power distribution network on-line condition monitoring system, comprising: it is pre- that quantity of state obtains module, data processing module, quantity of state
Alert output module,
The quantity of state obtains module and is used to carry out data acquisition to the data type of the various quantity of states of power distribution network, will
Collected state quantity data sends data processing module to and carries out concentration analysis, and data acquisition, which uses, periodically acquires mode,
Data acquisition interface meets IEC61970 standard or IEC61968 standard, and the communication protocol of data acquisition is DL/T 634；
The data processing module is used for the state quantity data obtained from quantity of state acquisition module by quantity of state requirement
Format handled, including analog quantity analysis, quantity of state analysis, non-measured data analysis, multi-data source processing, the quality of data
Code analysis, statistics calculation processing, deduct points according to assessment guidelines, generate alarm output according to quantity of state score value and alarming threshold
Characteristic quantity provides corresponding evaluation state by quantity of state early warning output module outputting alarm information；
The quantity of state early warning output module is used for the concrete condition according to deduction of points value, output state amount warning information.
The data type includes: equipment running status data, exception and failure preload state before exception and failure
Data, switch motion situation and tripping times, protection act status data, single-phase earthing status data, overload, three-phase are uneven
Weigh status data, temperature data, temperature rise data, local discharge signal value.
A kind of on-line monitoring method of power distribution network on-line condition monitoring system, comprising the following steps:
Quantity of state is obtained, distribution net equipment quantity of state is obtained from distribution network system；
The analysis of quantity of state is handled, and is handled according to quantity of state call format state quantity data, is carried out to analog quantity
Analysis, quantity of state is analyzed, non-measured data is analyzed, multi-data source is handled, quality of data code carries out configuration point
It analyses, carry out statistics calculation processing；
The output of warning information, the case where according to quantity of state deduction of points value, output state amount warning information.
The analog quantity analyzed the following steps are included:
Extract the active and reactive of primary equipment, electric current, voltage value, oil temperature and the main shift analogue value；
Validity check and data filtering are carried out to the simulation Value Data of primary equipment；
Zero-drifting processing is carried out to the simulation Value Data of primary equipment；
Limit value inspection is carried out to the simulation Value Data of primary equipment；
Limit value inspection is carried out to the analogue value data variation rate of primary equipment, the variation in analog quantity at the appointed time section
When more than specified threshold, alarm is provided.
The quantity of state analyzed the following steps are included:
Status values setting is carried out to the quantity of state of power distribution network, is indicated using 1 bit, 1 indicates to close a floodgate, and 0 indicates
Separating brake；
Dibit remote signalling data is analyzed, suspicious mark is made to illegal state；
Accidentally remote signalling data is monitored, suspicious mark is made to shake remote signalling state；
The movement timing of protection signal is monitored, non-involution in setting time, then report overtime announcement after protection act
It is alert；
The movement metering of protection signal is monitored, when protection act number is then reported more than limit value in setting time
Super secondary alarm.
The multi-data source handled the following steps are included:
Plausibility check is carried out for the multi-source data of same observation station；
To the multi-source data after plausibility check carry out judgement select it is excellent, judgement select excellent method as follows:
Define the source points and priority of specified measuring point；
Selected automatically according to the quality of data code of measuring point it is excellent, to select excellent result plus data source identify；
Using state quantity data as post data source, in the quality of data code failure of measuring point, select state quantity data into
Row processing；
Optimal data is put into real-time data base.
The quality of data code carry out Allocation Analysis the following steps are included:
To analog quantity and the equal configuration data Quality Codes classification of quantity of state；
Record no initializtion data in analog quantity and quantity of state, data-in Quality Codes；
Record unreasonable data in analog quantity and quantity of state, data-in Quality Codes；
Record analog quantity and quantity of state are fallen into a trap the evidence that counts, data-in Quality Codes；
Record measured data in analog quantity and quantity of state, data-in Quality Codes；
It records acquisition in analog quantity and quantity of state and interrupts data, data-in Quality Codes；
Record artificial data in analog quantity and quantity of state, data-in Quality Codes.
Beneficial effect
A kind of power distribution network on-line condition monitoring system of the invention and its on-line monitoring method, compared with prior art can
It realizes to multiple high voltage device of transformer station, the real time monitoring of data is carried out using the differentiated control system form of multiple servers.
The pilot system for promoting on-line monitoring system isolated, static from traditional sense is transitioned into global, networking, intelligence
Comprehensive state monitoring, diagnosis and and the service management system of change.The present invention overcomes the blindness of periodic maintenance, reduce maintenance
Number reduces maintenance expense, has delayed the time between overhauls(TBO) to the maximum extent, really realizes shape for electric system operating administration
State maintenance, and then the safety for improving the operation rate and power grid of equipment provides powerful technical platform.
Detailed description of the invention
Fig. 1 is structure connection principle block diagram of the invention；
Fig. 2 is method precedence diagram of the invention.
Specific embodiment
The effect of to make to structure feature of the invention and being reached, has a better understanding and awareness, to preferable
Examples and drawings cooperation detailed description, is described as follows:
As shown in Figure 1, a kind of power distribution network on-line condition monitoring system of the present invention, comprising: quantity of state acquisition module,
Data processing module, quantity of state early warning output module.
Quantity of state obtains module and is used to carry out data acquisition to the data type of the various quantity of states of power distribution network, will collect
State quantity data send data processing module to and carry out concentration analysis, using mode is periodically acquired, data are adopted for data acquisition
Collection interface meets IEC61970 standard or IEC61968 standard, and the communication protocol of data acquisition is DL/T 634；Its support is a variety of
The information access and forwarding capability of communication modes (such as optical fiber, carrier wave, wireless).It is also equipped with error detection function, it can be to reception
Data carry out error condition inspection and carrying out respective handling；Have the monitoring of communication channel operating condition, statistics, alarm and management
Function.
Data processing module is used for the format to the state quantity data obtained from quantity of state acquisition module by quantity of state requirement
It is handled, including analog quantity analysis, quantity of state analysis, the analysis of non-measured data, multi-data source processing, quality of data code point
Analysis, statistics calculation processing, deduct points according to assessment guidelines, generate alarm output feature according to quantity of state score value and alarming threshold
Amount, by quantity of state early warning output module outputting alarm information, provides corresponding evaluation state.Here, data type includes: different
Equipment running status data, exception and failure preload status data, switch motion situation and tripping times, guarantor before normal and failure
Protect action state data, single-phase earthing status data, overload, three-phase imbalance state data, temperature data, temperature rise data,
Local discharge signal value.
Quantity of state early warning output module is used for the concrete condition according to deduction of points value, output state amount warning information.Alert door
Limit value can be defined and be configured, and alarm mode can also be defined and be configured.The login of alarm mode support window, voice broadcast, are accused
Alert event supports historical query.Can temporally, the inquiry such as device type, quantity of state type, event type.
As shown in Fig. 2, a kind of on-line monitoring method of power distribution network on-line condition monitoring system of the present invention, including with
Lower step:
The first step obtains quantity of state, obtains distribution net equipment quantity of state, from distribution network system for being analyzed and processed.
Second step, the analysis processing of quantity of state.State quantity data is handled according to quantity of state call format, to simulation
Amount is analyzed, quantity of state is analyzed, non-measured data is analyzed, multi-data source is handled, quality of data code carries out
Allocation Analysis carries out statistics calculation processing.
Wherein analog quantity analyzed the following steps are included:
(1) active and reactive, the electric current, voltage value, oil of primary equipment (route, transformer, bus, switch etc.) are extracted
Temperature and the main shift analogue value.
(2) validity check and data filtering are carried out to the simulation Value Data of primary equipment.
(3) Zero-drifting processing is carried out to the simulation Value Data of primary equipment, the drift parameter of analog quantity may also set up.
(4) limit value inspection is carried out to the simulation Value Data of primary equipment, different periods is supported to use different limit values.
(5) limit value inspection is carried out to the analogue value data variation rate of primary equipment, when in analog quantity at the appointed time section
When variation is more than specified threshold, alarm is provided.
It includes the position of the switch, isolation switch, grounding switch position, guard mode and remote that quantity of state, which carries out analysis as processing,
The quantity of state including other various semaphores such as bounce number is thrown in side's control.Itself the following steps are included:
(1) status values setting is carried out to the quantity of state of power distribution network, is indicated using 1 bit, 1, which indicates to close a floodgate, (moves
Work/investment), 0 indicates separating brake (involution/exit).
(2) dibit remote signalling data is analyzed, suspicious mark is made to illegal state.
(3) accidentally remote signalling data is monitored, suspicious mark is made to shake remote signalling state.
(4) the movement timing of protection signal is monitored, non-involution in setting time, then report time-out after protection act
Alarm.
(5) to protection signal movement metering be monitored, when in setting time protection act number be more than limit value, then
Report super secondary alarm.
Wherein, the processing of non-measured data can be marked with Quality Codes by being manually entered also by being calculated, and with actual measurement number
According to having identical data processing function.
Wherein, multi-data source, which handle, has multi-source data processing technique, and the multi-source data of same observation station is meeting conjunction
Rationality verification through judgement select it is excellent after optimal result is put into real-time data base, be supplied to the use of other application function comprising with
Lower step:
(1) plausibility check is carried out for the multi-source data of same observation station.
(2) to the multi-source data after plausibility check carry out judgement select it is excellent, judgement select excellent method as follows:
A, the source points and priority of specified measuring point are defined.
B, selected automatically according to the quality of data code of measuring point it is excellent, to select excellent result plus data source identify.
C, state quantity data is selected in the quality of data code failure of measuring point using state quantity data as post data source
It is handled.
(3) optimal data is put into real-time data base, to supply the use of other application function.
Wherein, quality of data code carry out Allocation Analysis the following steps are included:
(1) equal data Quality Codes classification is configured to analog quantity and quantity of state.
(2) no initializtion data in analog quantity and quantity of state, data-in Quality Codes are recorded.
(3) unreasonable data in analog quantity and quantity of state, data-in Quality Codes are recorded.
(4) it records analog quantity and quantity of state to fall into a trap the evidence that counts, data-in Quality Codes.
(5) measured data in analog quantity and quantity of state, data-in Quality Codes are recorded.
(6) it records acquisition in analog quantity and quantity of state and interrupts data, data-in Quality Codes.
(7) artificial data in analog quantity and quantity of state, data-in Quality Codes are recorded.
Here, statistics computing function supports statistics to calculate, should be able to be united according to the needs of management and running to Various types of data
Meter, provides statistical result, main statistical function includes: numerical statistic: including maximum value, minimum value, average value, it is total it is value added,
Rate of load condensate, statistical time range include year, month, day, when etc.；Statistics of extremes: including maximum value minimum, statistical time range include year,
The moon, day, when etc.；Number statistics: including switch changed position number, remote control number of times etc.；Accuracy statistics: positive remote control accuracy can be counted
Accuracy is conjugated with remote signalling；Qualification rate statistics: threshold crossing time can be carried out to the amount that the users such as voltage specify, qualification rate counts, conjunction
Lattice rate can count at times, and user can set multiple limit value for different periods；Power failure equipments statistics: statistics scope of power outage,
And it can be inquired by condition stubs such as plant stand, device types；Operating condition statistics: can correctly count the idle time distribution terminal moon,
Stoppage in transit number.
Third step, the output of warning information.The case where according to quantity of state deduction of points value, output state amount warning information.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (2)
1. a kind of on-line monitoring method of power distribution network on-line condition monitoring system, the on-line condition monitoring system includes: state
Amount obtains module, data processing module, quantity of state early warning output module, it is characterised in that:
The quantity of state obtains module and is used to carry out data acquisition to the data type of the various quantity of states of power distribution network, will acquire
To state quantity data send data processing module to and carry out concentration analysis, data acquisition is using periodically acquiring mode, data
Acquisition interface meets IEC61970 standard or IEC61968 standard, and the communication protocol of data acquisition is DL/T 634；
The data processing module is used for the lattice to the state quantity data obtained from quantity of state acquisition module by quantity of state requirement
Formula is handled, including analog quantity analysis, quantity of state analysis, the analysis of non-measured data, multi-data source processing, quality of data code point
Analysis, statistics calculation processing, deduct points according to assessment guidelines, generate alarm output feature according to quantity of state score value and alarming threshold
Amount, by quantity of state early warning output module outputting alarm information, provides corresponding evaluation state；
The quantity of state early warning output module is used for the concrete condition according to deduction of points value, output state amount warning information；
The on-line monitoring method the following steps are included:
31) quantity of state is obtained, distribution net equipment quantity of state is obtained from distribution network system；
32) the analysis processing of quantity of state, state quantity data is handled according to quantity of state call format, is divided analog quantity
Analysis, quantity of state is analyzed, non-measured data is analyzed, multi-data source is handled, quality of data code carry out Allocation Analysis,
Carry out statistics calculation processing；
33) output of warning information, the case where according to quantity of state deduction of points value, output state amount warning information；
The analog quantity analyzed the following steps are included:
41) the active and reactive of primary equipment, electric current, voltage value, oil temperature and the main shift analogue value are extracted；
42) validity check and data filtering are carried out to the simulation Value Data of primary equipment；
43) Zero-drifting processing is carried out to the simulation Value Data of primary equipment；
44) limit value inspection is carried out to the simulation Value Data of primary equipment；
45) limit value inspection is carried out to the analogue value data variation rate of primary equipment, the variation in analog quantity at the appointed time section
When more than specified threshold, alarm is provided；
The quantity of state analyzed the following steps are included:
51) status values setting is carried out to the quantity of state of power distribution network, is indicated using 1 bit, 1 indicates to close a floodgate, 0 expression point
Lock；
52) dibit remote signalling data is analyzed, suspicious mark is made to illegal state；
53) accidentally remote signalling data is monitored, suspicious mark is made to shake remote signalling state；
54) the movement timing of protection signal is monitored, non-involution in setting time, then report overtime announcement after protection act
It is alert；
55) the movement metering of protection signal is monitored, when protection act number is more than limit value in setting time, then report is super
Secondary alarm；
The multi-data source handled the following steps are included:
61) plausibility check is carried out for the multi-source data of same observation station；
62) to the multi-source data after plausibility check carry out judgement select it is excellent, judgement select excellent method as follows:
621) source points and priority of specified measuring point are defined；
622) selected automatically according to the quality of data code of measuring point it is excellent, to select excellent result plus data source identify；
623) using state quantity data as post data source, in the quality of data code failure of measuring point, select state quantity data into
Row processing；
63) optimal data is put into real-time data base；
The quality of data code carry out Allocation Analysis the following steps are included:
71) to analog quantity and the equal configuration data Quality Codes classification of quantity of state；
72) no initializtion data in analog quantity and quantity of state, data-in Quality Codes are recorded；
73) unreasonable data in analog quantity and quantity of state, data-in Quality Codes are recorded；
74) it records analog quantity and quantity of state to fall into a trap the evidence that counts, data-in Quality Codes；
75) measured data in analog quantity and quantity of state, data-in Quality Codes are recorded；
76) it records acquisition in analog quantity and quantity of state and interrupts data, data-in Quality Codes；
77) artificial data in analog quantity and quantity of state, data-in Quality Codes are recorded.
2. a kind of on-line monitoring method of power distribution network on-line condition monitoring system according to claim 1, which is characterized in that
The data type includes: equipment running status data, exception and failure preload status data, switch before exception and failure
Action situation and tripping times, protection act status data, single-phase earthing status data, overload, three-phase imbalance state number
According to, temperature data, temperature rise data, local discharge signal value.
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| CN107591787B (en) * | 2017-11-06 | 2019-05-07 | 国网河南省电力公司登封市供电公司 | A kind of distribution protection module failure monitoring method |
| CN108512231A (en) * | 2018-05-09 | 2018-09-07 | 北京国网普瑞特高压输电技术有限公司 | A kind of data processing method of the status monitoring integrated platform based on IEC61850 agreements |
| CN108551209A (en) * | 2018-05-09 | 2018-09-18 | 北京国网普瑞特高压输电技术有限公司 | A kind of operation method of the status monitoring integrated platform based on IEC61850 agreements |
| CN108493955A (en) * | 2018-05-09 | 2018-09-04 | 北京国网普瑞特高压输电技术有限公司 | A kind of series compensation device with real-time state monitoring integrated platform |
| CN108896100A (en) * | 2018-05-09 | 2018-11-27 | 北京国网普瑞特高压输电技术有限公司 | A kind of capacitor group status monitoring subsystem |
| CN110727725B (en) * | 2019-09-26 | 2022-06-24 | 广西电网有限责任公司电力科学研究院 | Data interface based on distribution network operating efficiency monitoring and analysis |
| CN112820282A (en) * | 2020-12-18 | 2021-05-18 | 中国南方电网有限责任公司 | Power grid dispatching system based on voice recognition and natural language processing |
| CN113346621B (en) * | 2021-06-16 | 2023-03-07 | 贵州电网有限责任公司 | Electric power monitoring system equipment alarm signal change early warning method |
| CN114204686B (en) * | 2021-12-14 | 2024-07-19 | 辽宁生态工程职业学院 | Distribution network distribution state monitoring system and monitoring method thereof |
| CN114296009B (en) * | 2022-03-10 | 2022-05-24 | 山东汇能电气有限公司 | Intelligent analysis system for transformer operation |
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| CN101887547A (en) * | 2010-06-30 | 2010-11-17 | 广西电网公司电力科学研究院 | Assistant decision system for condition-based maintenance and risk evaluation of power transmission and transformation equipment |
| CN101951025B (en) * | 2010-08-19 | 2013-04-10 | 中国海洋石油总公司 | Energy management system of offshore grid |
| CN103163389A (en) * | 2011-12-08 | 2013-06-19 | 沈阳工业大学 | Intelligent bus on-line monitoring and condition evaluation system |
| CN102938587B (en) * | 2012-12-10 | 2014-11-26 | 上海市电力公司 | Intelligent power grid safety and stability early-warning and control method |
| CN103149475B (en) * | 2013-02-05 | 2015-07-22 | 广东电网公司 | Method and system for fault diagnosis of electrical equipment |
| CN103325074B (en) * | 2013-06-26 | 2016-12-28 | 广东电网公司佛山供电局 | Power system real-time data processing method |
| CN104578411B (en) * | 2014-12-23 | 2016-09-07 | 国电南瑞科技股份有限公司 | A kind of PMU data accesses the multi-source data safety check after AGC and failure locking method |
| CN104638764A (en) * | 2015-01-22 | 2015-05-20 | 国家电网公司 | Intelligent state diagnosis and overhauling system for power distribution network equipment |
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