CN111614162A - Transformer substation monitoring system performance evaluation method based on avalanche test - Google Patents
Transformer substation monitoring system performance evaluation method based on avalanche test Download PDFInfo
- Publication number
- CN111614162A CN111614162A CN202010445722.3A CN202010445722A CN111614162A CN 111614162 A CN111614162 A CN 111614162A CN 202010445722 A CN202010445722 A CN 202010445722A CN 111614162 A CN111614162 A CN 111614162A
- Authority
- CN
- China
- Prior art keywords
- avalanche
- remote
- simulation
- density
- monitoring system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
Abstract
The invention relates to a performance evaluation method of a substation monitoring system based on avalanche testing, which is used for setting remote signaling signals and setting remote measuring signals, simultaneously realizing remote signaling avalanche simulation and remote measuring avalanche simulation, carrying out remote signaling avalanche simulation and remote measuring avalanche simulation of different grades in the simulation process, monitoring the state of a tested substation and obtaining the performance grade of the tested substation monitoring system. The invention can visually see the performance condition of the transformer substation monitoring system and is convenient for a power company to evaluate the performance of the transformer substation monitoring system.
Description
Technical Field
The invention belongs to the technical field of power grids, more specifically to the field of performance test evaluation of a substation monitoring system in a power dispatching automation system, and relates to a performance evaluation method of the substation monitoring system based on avalanche test.
Background
According to the network data flow condition of the dispatching automation system of the transformer substation, the operation state of the transformer substation can be divided into: normal state, emergency state, critical state.
The accuracy and timeliness of the signals are critical to the power grid and are the basis of safe operation of the power grid, and therefore the performance of the transformer substation monitoring system is particularly critical.
In an emergency situation, for example, when some substations are tripped due to a fault, especially when the bus bar is disconnected, the signal is centrally sent, and some signals are lost or wrong due to insufficient performance of the substation monitoring system. When the transformer substation is in an emergency state, the transformer substation receives a large amount of data including line tripping, remote switching, voltage collapse, frequency reduction and the like in a short time, and at the moment, if a monitoring system fails, telemechanical information is easily lost or even telemechanical interruption is easily caused, so that the failure is possibly expanded. Therefore, the method has important significance in scientific evaluation of the performance of the transformer substation monitoring system.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the performance evaluation method of the transformer substation monitoring system based on the avalanche test, so that the performance condition of the transformer substation monitoring system can be visually seen, and the evaluation of the performance of the transformer substation monitoring system by a power company is facilitated.
The technical scheme adopted by the invention for solving the technical problems is as follows: and simultaneously setting the remote signaling signals and setting the number of the remote measuring signals, simultaneously realizing remote signaling avalanche simulation and remote measuring avalanche simulation, carrying out remote signaling avalanche simulation and remote measuring avalanche simulation of different grades in the simulation process, monitoring the state of the tested transformer substation, and obtaining the performance grade of the monitoring system of the tested transformer substation.
Furthermore, the remote signaling avalanche simulation is to set a remote signaling signal, and one remote signaling deflection is sent every few seconds to thousands of remote signaling deflections are sent every second, so that different levels of remote signaling avalanche simulation are realized;
the remote sensing avalanche simulation is realized by sending a change from a few seconds to hundreds of thousands of changes per second in a remote sensing and counting mode, and different levels of remote sensing avalanche simulation are realized.
Further, it comprises the following steps,
(1) setting the proportion of the telesignaling avalanche density to the telesignaling avalanche density;
(2) and (2) under the proportion set in the step (1), gradually increasing the remote signaling avalanche density and the remote sensing avalanche density, carrying out avalanche testing, and measuring the minimum comprehensive avalanche density sigma (lost) when the remote signaling, remote sensing signal or avalanche testing inspection item is lost to obtain the performance grade of the substation monitoring system.
Further, in the step (1), the telecommand avalanche density is:
wherein σyxIs the telecommand avalanche density;
t is avalanche duration;
Nyxsending the number of remote signaling deflection within the avalanche duration;
in the step (1), the telemetering avalanche density is as follows:
wherein σycIs the telemetry avalanche density;
t is avalanche duration;
Nycthe number of telemetry changes is sent for the duration of the avalanche.
Further, in the step (1), the ratio of the remote signaling avalanche density to the remote sensing avalanche density is as follows:
wherein N isycSending the number of change telemetries for the duration of the avalanche;
Nyxthe number of remote signaling deflection is sent for the duration of the avalanche.
Further, in the step (2), the integrated avalanche density is:
σ＝σyx+γ*σyc＝σyx+α*γ*σyx(6)
wherein σ is the integrated avalanche density;
alpha is the ratio of the number of telemetering and remote signaling in the tested transformer substation;
gamma is the ratio of the remote signaling and remote measuring avalanche performance influence factors;
σycis the telemetry avalanche density;
σyxis the remote signaling avalanche density.
Further, the air conditioner is provided with a fan,
wherein λ isycIs a remote measurement avalanche performance influencing factor;
λyxis a remote measurement avalanche performance influencing factor;
gamma is the ratio of the remote signaling and remote measuring avalanche performance influence factors; lambda [ alpha ]yc、λyxWith respect to avalanche density σxThe statistical value of (1).
Further, in the step (2), the performance levels of the substation monitoring system are divided into four levels: β ═ 1, β ═ 2, as good, β ═ 3, as poor, β ═ 4;
wherein beta is the performance grade of the transformer substation monitoring system.
Further, for the same voltage class substation monitoring system:
a＜b＜c (8)；
for the transformer substation monitoring systems with different voltage levels, the avalanche performance level demarcation point values a, b and c are different, and each avalanche performance level demarcation point value is increased along with the increase of the voltage level.
Further, the avalanche test check item includes the following:
(1) checking whether a missing report or a false report avalanche test remote signaling or remote measuring signal exists in a simulation scheduling main station system and a monitoring background;
(2) during the avalanche simulation, remote control operation is carried out on a monitoring background, whether the corresponding device acts correctly or not is checked, and whether the simulation scheduling master station reacts correctly or not is checked;
(3) during the avalanche simulation, actual telemetering refreshing is carried out, and whether the monitoring background and the simulation scheduling master station correctly react is checked;
(4) during the avalanche simulation, carrying out actual protection action, and checking whether the monitoring background and the simulation scheduling master station correctly react;
(5) during the avalanche simulation, carrying out actual calling protection setting, and checking whether the function is normal;
(6) during the avalanche simulation, performing actual linkage verification to check whether the function is normal;
(7) during the avalanche simulation, whether the CPU load rate, the network load rate, the memory occupancy rate and the system response time of the station layer equipment are normal or not is checked.
The invention has the beneficial effects that:
1. the invention adopts a software command setting mode to realize the simulation of the remote signaling signals, adopts a software command setting mode to carry out the telemetering simulation, and realizes the simulation of the remote signaling avalanche and the telemetering avalanche of different grades by gradually increasing the density of the remote signaling avalanche and the telemetering avalanche.
2. According to the invention, the appropriate remote signaling and remote measuring proportion and number are selected according to the actual condition of the monitored transformer substation monitoring system for simulation, so that the condition of the transformer substation is reflected more truly.
3. According to the invention, for the transformer substation monitoring systems with different voltage levels, the parameter requirements for judging the performance levels are different, and the actual situation is better met.
4. According to the avalanche test evaluation results, namely, the performance of the transformer substation monitoring system can be visually seen, the performance of the transformer substation monitoring system can be conveniently evaluated by a power company, and the performance level of equipment can be gradually improved by equipment manufacturers.
Drawings
FIG. 1 is a diagram of an avalanche testing environment of a substation monitoring system according to the present invention;
fig. 2 is a performance grade evaluation diagram of the substation monitoring system according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to examples, but the scope of the present invention is not limited thereto, and the scope of the invention is set forth in the claims. The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1-2, the overall idea of the present invention is: and simultaneously setting the remote signaling signals and setting the number of the remote measuring signals, simultaneously realizing remote signaling avalanche simulation and remote measuring avalanche simulation, carrying out remote signaling avalanche simulation and remote measuring avalanche simulation of different grades in the simulation process, monitoring the state of the tested transformer substation, and obtaining the performance grade of the monitoring system of the tested transformer substation.
The remote signaling avalanche simulation is to set a remote signaling signal in a software command mode, and realize different levels of remote signaling avalanche simulation from sending one remote signaling deflection every several seconds to sending thousands of remote signaling deflections every second;
the remote sensing avalanche simulation is a remote sensing and number setting mode through a software command mode, so that the remote sensing of hundreds of thousands of changes per second from sending a change in a few seconds is realized, and the remote sensing avalanche simulation of different levels is realized.
Wherein the specific number and frequency of the telesignaling avalanche simulation and the telesignaling avalanche simulation may be configured as desired.
And setting the remote signaling signals and setting the number of the remote measuring signals by adopting a software command at the same time, so as to realize the simulation of remote signaling avalanche and remote measuring avalanche.
The method selects proper remote signaling and remote measuring proportion and number to simulate according to actual conditions, can reflect the conditions of the transformer substation more truly, takes a certain 500kV transformer substation as an example, and counts the average number of remote signaling and remote measuring of the transformer substation, wherein the proportion is 7: 1.
The present embodiment specifically includes the following steps,
(1) setting the proportion of the remote signaling avalanche density and the remote measuring avalanche density by combining the remote signaling and remote measuring actual conditions of the monitored transformer substation monitoring system;
(2) and (2) under the proportion set in the step (1), gradually increasing the remote signaling avalanche density and the remote sensing avalanche density, carrying out avalanche testing, and measuring the minimum comprehensive avalanche density sigma (lost) when the remote signaling, remote sensing signal or avalanche testing inspection item is lost to obtain the performance grade of the substation monitoring system.
The explanation of "when there is a problem in the beginning of dropping the remote signaling, the telemetry signal or the avalanche test examination item" is that when either of the two situations occurs, that is, the beginning of dropping the remote signaling and the telemetry signal occurs, the occurrence of the problem in the avalanche test examination item occurs, or both of them occur, the minimum integrated avalanche density σ (lost) at that time is recorded.
The situation that the remote signaling and the remote measuring signals are lost at the beginning is that the situation is considered to be met if any one of the remote signaling and the remote measuring signals is lost, and the situations comprise that the remote signaling signal is lost, the remote measuring signal is lost or the remote signaling signal and the remote measuring signal are simultaneously lost.
In the step (1), the telecommand avalanche density is as follows:
wherein σyxIs the telecommand avalanche density; the invention can realize different levels of remote signaling avalanche simulation through different remote signaling avalanche densities;
t is avalanche duration;
Nyxsending the number of remote signaling deflection within the avalanche duration T;
in the step (1), the telemetering avalanche density is as follows:
wherein σycIs the telemetry avalanche density; the invention can realize telemetering avalanche simulation of different levels through different telemetering avalanche densities;
t is avalanche duration;
Nycthe number of telemetry changes is sent for an avalanche duration T.
In the step (1), according to the formula (1) and the formula (2), the ratio of the remote signaling avalanche density to the remote sensing avalanche density is as follows:
wherein N isycSending the number of change telemetries for the duration of the avalanche;
Nyxthe number of remote signaling deflection is sent for the duration of the avalanche.
When the remote signaling and remote sensing avalanche tests are simultaneously carried out, there are the following equations (1), (2) and (3)
σyc＝α*σyx(4)
The remote signaling and remote measuring avalanche performance influence factor ratio is as follows:
wherein λ isycIs a remote measurement avalanche performance influencing factor;
λyxis a remote measurement avalanche performance influencing factor;
gamma is the ratio of the remote signaling and remote sensing avalanche performance influencing factors. Namely, the influence of 1 unit of remote measuring density and gamma unit of remote signalling density on the monitoring system is the same. Lambda [ alpha ]yc、λyxWith respect to avalanche density σxThe statistical value of (A) can be obtained by a large number of avalanche tests, and is generally taken as lambdayx＝1。
For example, when the value of the remote avalanche density is 100 and the remote avalanche density is 200, the influence on the performance of the substation monitoring system is the same, then gamma is 2 (lambda)yc＝2、λyx1); the gamma and avalanche densities sigma can be obtained through a large number of similar experimentsxThen, the data is counted into a data table. During the performance evaluation test of the actual transformer substation monitoring system, the value of gamma can be obtained through table lookup and other modes.
Integrated avalanche density definition: the telemetric avalanche density is also converted to the telesignalling avalanche density according to equations (4), (5) based on the impact on the monitoring system performance, and in step (2), the integrated avalanche density is:
σ＝σyx+γ*σyc＝σyx+α*γ*σyx(6)
wherein σ is the integrated avalanche density;
alpha is the ratio of the number of telemetering and remote signaling in the tested transformer substation; referring to formula (3);
gamma is the ratio of the remote signaling and remote measuring avalanche performance influence factors; i.e. when the telemetry avalanche density is sigmaycInfluence on monitoring system performance, corresponding to telesignalling avalanche density of γ σycRemote signaling ofAvalanche impact on the monitoring system;
σycis the telemetry avalanche density;
σyxis the remote signaling avalanche density.
In the step (2), the performance grade beta of the transformer substation monitoring system is divided into four grades: β ═ 1, β ═ 2, as good, β ═ 3, as poor, β ═ 4;
wherein beta is the performance grade of the transformer substation monitoring system.
When sigma (lost) is avalanche test, the remote signaling avalanche density and the remote signaling avalanche density are gradually increased (according to proportion), and the minimum comprehensive avalanche density of remote signaling, remote signaling loss or avalanche test inspection item problem is measured.
a. And b and c are three key values of comprehensive avalanche density, are demarcation points of 4 avalanche performance grades (excellent, good, medium and poor), and are used for transformer substation monitoring systems with the same voltage grade.
a＜b＜c (8)
For transformer substation monitoring systems with different voltage levels, the avalanche performance level demarcation point values a, b and c are different, the specific values of a, b and c can be set according to the requirements of the transformer substation monitoring system more practically, and each avalanche performance level demarcation point value is increased along with the increase of the voltage level.
Taking voltage grades of 35kV, 110kV, 220kV and 500kV as examples, the following conditions are met:
for transformer substations with different voltage grades, the numerical values of the dividing points of the avalanche performance grades are different, the key value of the comprehensive avalanche density is increased along with the rise of the voltage grade, and the voltage grades of 35kV, 110kV, 220kV and 500kV are taken as examples to meet the following requirements:
according to the avalanche test evaluation result, the performance conditions of the substation monitoring system can be visually seen according to the excellent (beta is 1), good (beta is 2), medium (beta is 3) and poor (beta is 4), so that the power company can conveniently evaluate the performance of the substation monitoring system, and the equipment manufacturer is promoted to gradually improve the performance level of the equipment.
In the invention, when sigma (lost) is avalanche test, the remote signaling avalanche density and the remote signaling avalanche density are gradually increased (according to proportion), and the minimum comprehensive avalanche density of remote signaling and remote signaling loss or avalanche test inspection item problem is measured, namely if any one of the remote signaling or remote signaling loss or avalanche test inspection item problem occurs, the corresponding minimum comprehensive avalanche density is sigma (lost) for judging beta.
Wherein the avalanche test check item comprises the following contents:
(1) checking whether a missing report or a false report avalanche test remote signaling or remote measuring signal exists in a simulation scheduling main station system and a monitoring background;
(2) during the avalanche simulation, remote control operation is carried out on a monitoring background, whether the corresponding device acts correctly or not is checked, and whether the simulation scheduling master station reacts correctly or not is checked;
(3) during the avalanche simulation, actual telemetering refreshing is carried out, and whether the monitoring background and the simulation scheduling master station correctly react is checked;
(4) during the avalanche simulation, carrying out actual protection action, and checking whether the monitoring background and the simulation scheduling master station correctly react;
(5) during the avalanche simulation, carrying out actual calling protection setting, and checking whether the function is normal;
(6) during the avalanche simulation, performing actual linkage verification to check whether the function is normal;
(7) during the avalanche simulation, if any one of the conditions (1) to (7) is generated, the situation that the problem occurs in the avalanche test check item is considered to be generated if the station layer equipment CPU load rate, the network load rate, the memory occupancy rate and the system response time are checked whether normal or not.
According to the condition of the monitoring system of the transformer substation to be tested, the normal state, the emergency state and the crisis state of the power grid are simulated through avalanche tests of different levels, the voltage level is combined, and the performance of the monitoring system of the transformer substation is graded according to different reactions of the monitoring system.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A performance evaluation method of a transformer substation monitoring system based on avalanche testing is characterized by comprising the following steps: and simultaneously setting the remote signaling signals and setting the number of the remote measuring signals, simultaneously realizing remote signaling avalanche simulation and remote measuring avalanche simulation, carrying out remote signaling avalanche simulation and remote measuring avalanche simulation of different grades in the simulation process, monitoring the state of the tested transformer substation, and obtaining the performance grade of the monitoring system of the tested transformer substation.
2. The avalanche test-based substation monitoring system performance evaluation method according to claim 1, characterized in that: the remote signaling avalanche simulation is to set a remote signaling signal, and one remote signaling deflection is sent every few seconds to thousands of remote signaling deflections are sent every second, so that remote signaling avalanche simulation of different grades is realized;
the remote sensing avalanche simulation is realized by sending a change from a few seconds to hundreds of thousands of changes per second in a remote sensing and counting mode, and different levels of remote sensing avalanche simulation are realized.
3. The avalanche test-based substation monitoring system performance evaluation method according to claim 1, characterized in that: which comprises the following steps of,
(1) setting the proportion of the telesignaling avalanche density to the telesignaling avalanche density;
(2) and (2) under the proportion set in the step (1), gradually increasing the remote signaling avalanche density and the remote sensing avalanche density, carrying out avalanche testing, and measuring the minimum comprehensive avalanche density sigma (lost) when the remote signaling, remote sensing signal or avalanche testing inspection item is lost to obtain the performance grade of the substation monitoring system.
4. The avalanche test-based substation monitoring system performance evaluation method according to claim 2, characterized in that: in the step (1), the telecommand avalanche density is as follows:
wherein σyxIs the telecommand avalanche density;
t is avalanche duration;
Nyxsending the number of remote signaling deflection within the avalanche duration;
in the step (1), the telemetering avalanche density is as follows:
wherein σycIs the telemetry avalanche density;
t is avalanche duration;
Nycthe number of telemetry changes is sent for the duration of the avalanche.
5. The avalanche test-based substation monitoring system performance evaluation method according to claim 4, characterized in that: in the step (1), the ratio of the remote signaling avalanche density to the remote sensing avalanche density is as follows:
wherein N isycSending the number of change telemetries for the duration of the avalanche;
Nyxthe number of remote signaling deflection is sent for the duration of the avalanche.
6. The avalanche test-based substation monitoring system performance evaluation method according to claim 5, characterized in that: in the step (2), the comprehensive avalanche density is as follows:
σ＝σyx+γ*σyc＝σyx+α*γ*σyx(6)
wherein σ is the integrated avalanche density;
alpha is the ratio of the number of telemetering and remote signaling in the tested transformer substation;
gamma is the ratio of the remote signaling and remote measuring avalanche performance influence factors;
σycis the telemetry avalanche density;
σyxis the remote signaling avalanche density.
7. The avalanche test-based substation monitoring system performance evaluation method according to claim 6, characterized in that:
wherein λ isycIs a remote measurement avalanche performance influencing factor;
λyxis a remote measurement avalanche performance influencing factor;
gamma is the ratio of the remote signaling and remote measuring avalanche performance influence factors; lambda [ alpha ]yc、λyxWith respect to avalanche density σxThe statistical value of (1).
8. The avalanche test-based substation monitoring system performance evaluation method according to claim 3, characterized in that:
in the step (2), the performance grade of the transformer substation monitoring system is divided into four grades: β ═ 1, β ═ 2, as good, β ═ 3, as poor, β ═ 4;
wherein beta is the performance grade of the transformer substation monitoring system.
9. The avalanche test-based substation monitoring system performance evaluation method according to claim 8, characterized in that: for the same voltage class substation monitoring system:
a＜b＜c (8)；
for the transformer substation monitoring systems with different voltage levels, the avalanche performance level demarcation point values a, b and c are different, and each avalanche performance level demarcation point value is increased along with the increase of the voltage level.
10. The avalanche test-based substation monitoring system performance evaluation method according to claim 3, characterized in that: the avalanche test check item includes the following contents:
(1) checking whether a missing report or a false report avalanche test remote signaling or remote measuring signal exists in a simulation scheduling main station system and a monitoring background;
(2) during the avalanche simulation, remote control operation is carried out on a monitoring background, whether the corresponding device acts correctly or not is checked, and whether the simulation scheduling master station reacts correctly or not is checked;
(3) during the avalanche simulation, actual telemetering refreshing is carried out, and whether the monitoring background and the simulation scheduling master station correctly react is checked;
(4) during the avalanche simulation, carrying out actual protection action, and checking whether the monitoring background and the simulation scheduling master station correctly react;
(5) during the avalanche simulation, carrying out actual calling protection setting, and checking whether the function is normal;
(6) during the avalanche simulation, performing actual linkage verification to check whether the function is normal;
(7) during the avalanche simulation, whether the CPU load rate, the network load rate, the memory occupancy rate and the system response time of the station layer equipment are normal or not is checked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010445722.3A CN111614162B (en) | 2020-05-22 | 2020-05-22 | Performance evaluation method of transformer substation monitoring system based on avalanche test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010445722.3A CN111614162B (en) | 2020-05-22 | 2020-05-22 | Performance evaluation method of transformer substation monitoring system based on avalanche test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111614162A true CN111614162A (en) | 2020-09-01 |
| CN111614162B CN111614162B (en) | 2023-08-15 |
Family
ID=72199194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010445722.3A Active CN111614162B (en) | 2020-05-22 | 2020-05-22 | Performance evaluation method of transformer substation monitoring system based on avalanche test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111614162B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113552857A (en) * | 2021-07-20 | 2021-10-26 | 中国电力科学研究院有限公司 | Automatic excitation detection method and system in autonomous controllable intelligent substation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267906A (en) * | 2013-04-18 | 2013-08-28 | 国家电网公司 | Comprehensive automatic transformer substation snow slide testing device based on time synchronization system |
| CN104333136A (en) * | 2014-11-14 | 2015-02-04 | 云南电网公司大理供电局 | Snow slide test method based on electric power 104 protocol |
| CN106787199A (en) * | 2016-12-28 | 2017-05-31 | 国网河北省电力公司电力科学研究院 | A kind of portable substation simulated testing system and method |
| CN107123989A (en) * | 2017-05-25 | 2017-09-01 | 国网上海市电力公司 | A kind of topology identification method based on improved local outlier factor algorithm |
| CN109342848A (en) * | 2018-09-29 | 2019-02-15 | 国网河北省电力有限公司电力科学研究院 | Avalanche test method, system and terminal device for dispatching automation main website |
| CN111123007A (en) * | 2019-12-27 | 2020-05-08 | 国网河北省电力有限公司电力科学研究院 | Transformer substation avalanche testing method and system and terminal equipment |
| CN111123009A (en) * | 2019-12-27 | 2020-05-08 | 国网河北省电力有限公司电力科学研究院 | Intelligent substation avalanche testing method and system based on SCD file and terminal equipment |
-
2020
- 2020-05-22 CN CN202010445722.3A patent/CN111614162B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267906A (en) * | 2013-04-18 | 2013-08-28 | 国家电网公司 | Comprehensive automatic transformer substation snow slide testing device based on time synchronization system |
| CN104333136A (en) * | 2014-11-14 | 2015-02-04 | 云南电网公司大理供电局 | Snow slide test method based on electric power 104 protocol |
| CN106787199A (en) * | 2016-12-28 | 2017-05-31 | 国网河北省电力公司电力科学研究院 | A kind of portable substation simulated testing system and method |
| CN107123989A (en) * | 2017-05-25 | 2017-09-01 | 国网上海市电力公司 | A kind of topology identification method based on improved local outlier factor algorithm |
| CN109342848A (en) * | 2018-09-29 | 2019-02-15 | 国网河北省电力有限公司电力科学研究院 | Avalanche test method, system and terminal device for dispatching automation main website |
| CN111123007A (en) * | 2019-12-27 | 2020-05-08 | 国网河北省电力有限公司电力科学研究院 | Transformer substation avalanche testing method and system and terminal equipment |
| CN111123009A (en) * | 2019-12-27 | 2020-05-08 | 国网河北省电力有限公司电力科学研究院 | Intelligent substation avalanche testing method and system based on SCD file and terminal equipment |
Non-Patent Citations (1)
| Title |
|---|
| 梁运华等: "测试500kV变电站SCADA系统性能的雪崩数据模型研究", 《电力信息与通信技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113552857A (en) * | 2021-07-20 | 2021-10-26 | 中国电力科学研究院有限公司 | Automatic excitation detection method and system in autonomous controllable intelligent substation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111614162B (en) | 2023-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105116291B (en) | A kind of fault diagnosis system and method based on operation of power networks stable state monitoring information | |
| CN103324992B (en) | Transformer risk prediction method based on markov and entropy weight fuzzy comprehensive evaluation | |
| WO2020224534A1 (en) | Oil-immersed power transformer non-electricity protection fault recording device and method | |
| CN103001328A (en) | Fault diagnosis and assessment method of intelligent substation | |
| CN111123007A (en) | Transformer substation avalanche testing method and system and terminal equipment | |
| CN107064693B (en) | Relay protection device outlet matrix test device and test method | |
| CN110824367A (en) | Hardware-in-loop test system and method for new energy automobile battery management system | |
| CN111123009A (en) | Intelligent substation avalanche testing method and system based on SCD file and terminal equipment | |
| CN106771730A (en) | The intelligent substation real-time calibration equipment of protection device analog quantity sampling circuit and method | |
| CN108830475A (en) | Electrical secondary system hidden failure appraisal procedure | |
| CN110571925A (en) | Method for analyzing power quality by using data of power distribution network monitoring terminal | |
| CN105759150B (en) | A kind of test system and method for substation secondary device prefabricated cabin | |
| CN111614162B (en) | Performance evaluation method of transformer substation monitoring system based on avalanche test | |
| CN105137213A (en) | Data communication real-time diagnosis system and method | |
| CN107976598B (en) | Method for testing loss of SOE signal after line fault of intelligent substation | |
| CN111030301B (en) | Method for checking correlation of scheduling automation information points | |
| CN106941434A (en) | The detecting system and method for a kind of communication message | |
| CN107294205B (en) | Substation state monitoring method based on information protection master station data | |
| CN101752839A (en) | Method for improving valve short circuit protection and setting performance of current converter | |
| Bollen et al. | Stochastical and statistical assessment of voltage dips | |
| CN111641264B (en) | Performance evaluation method for transformer substation monitoring system | |
| CN103439596A (en) | Method for detecting safe operation steady-state performance of power transmission network | |
| CN207232351U (en) | A kind of alternating-current charging pile electric fault simulation system | |
| CN112147409B (en) | Online impedance detection method and device for low-voltage distribution line | |
| CN110261716B (en) | Transformer operation state vibration sound detection method based on Dirac mixing mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |