CN103413252A - Voltage sag real-time analysis system based on multiple agents and analysis method thereof - Google Patents
Voltage sag real-time analysis system based on multiple agents and analysis method thereof Download PDFInfo
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- CN103413252A CN103413252A CN201310370388XA CN201310370388A CN103413252A CN 103413252 A CN103413252 A CN 103413252A CN 201310370388X A CN201310370388X A CN 201310370388XA CN 201310370388 A CN201310370388 A CN 201310370388A CN 103413252 A CN103413252 A CN 103413252A
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Abstract
The invention provides a voltage sag real-time analysis system based on multiple agents and an analysis method thereof, and belongs to the technical field of electric energy quality analysis. In the system, data acquisition agents, intelligent management agents, computational analysis agents and a display agent are sequentially connected through communication; the intelligent management agents dispatch the computational analysis agents in a coordinated mode to achieve sag event parallel computing of various monitoring points; the computational analysis agents carry out characteristic value computation on data to locate sag sources; the display agent issues sag event analysis results to users through short messages, E-mails and a screen real-time display mode. Once the monitoring points monitor sag data, the sag data can be computed, analyzed and displayed in real time through cooperation of the multiple agents. When events are captured by multiple monitoring points during the same time period, the events can be allocated to multiple computational analysis agents to be processed in parallel. According to the voltage sag real-time analysis system and the analysis method, the analysis results of the sag events can be displayed in real time, off-line analysis processing of a foreground and background concentrated computation mode is moved forwards, real-time on-line analysis processing is achieved, and timeliness is higher.
Description
Technical field
The present invention relates to a kind of real-time analyzer of voltage dip based on multi-Agent and analytical approach thereof, belong to the power quality analysis technical field.
Background technology
Voltage dip is one of most important power quality problem in current electric system, and approximately 80% power quality problem is caused by voltage dip, thereby Problem of Voltage Temporary-Drop becomes the problem that power supply department and user more and more are concerned about.At present, each provincial electric power company has all been set up quality of power supply on-line monitoring and analytic system that scale does not wait, to responsive PCC point power quality index Continuous Tracking monitoring, to the power quality index the data backstage analyzing and processing mode of accumulation, realize the electricity quality evaluation based on monitoring point, electric pressure, regional power grid.Because monitoring point is many, data volume is large, the analytical calculation complexity, complete an analysis and evaluation calculating and need the long period, in order to improve user's experience, avoid waiting as long for, usually adopt regularly centralized calculation to process, preserve analysis result, call at any time the off-line assessment mode of inquiry.
The transient power quality case study is very high to ageing requirement, and the off-line assessment mode has certain limitation in system aspect ageing.The transient power quality case study is very high to ageing requirement.It has the characteristics such as sudden change, non-stationary, duration be short, need to understand their global properties in time domain and frequency domain, could correctly to various abnormal operating conditions or the malfunction of system, make diagnosis in time, find out interference source, and make rapidly prevention or cancellation scheme.
The event of falling temporarily has certain propagation characteristic in electrical network.After the event generation, can in the electrical network certain area, produce impact in various degree, different monitoring points all can capture event and occur, but the impact difference falls in each monitoring point temporarily, and falling temporarily eigenwert can be different.By the affair character value of falling temporarily that different monitoring points is obtained, carry out analytical calculation, realize falling temporarily reason identification and fall temporarily location, source (orientation).Comprehensive each monitoring point analysis result, realize falling temporarily determining of event reason and position.
Feature and multi-Agent (agency) system distributed, intelligent, real-time that Voltage Sag Analysis possesses have the consistance of height.A kind of real-time analyzer of voltage dip based on multi-Agent is proposed here.Utilize each different Agent to carry out data acquisition, computational analysis, the work such as demonstration.Here adopt many agent Development Framework---the JADE (Java Agent Development Framework) increased income, make the developer can ignore the realization of FIPA standard, only go to pay close attention to the realization of multi-Agent function.
Summary of the invention
The object of the invention is to, the problem for the poor in timeliness of falling temporarily event calculating, provide a kind of computational analysis of the event of falling temporarily based on multi-Agent system.
A kind of real-time analyzer of voltage dip based on multi-Agent, this system comprise data acquisition A gent, intelligent management Agent, computational analysis Agent, show Agent;
Data acquisition A gent real-time response monitoring point reporting information data;
Intelligent management Agent coordinated scheduling computational analysis Agent, realize that each monitoring point falls temporarily the event parallel computation and processes;
Computational analysis Agent carries out the calculating of eigenwert to data, to temporarily source being positioned;
Show that Agent will fall temporarily the event analysis result with note, E-mail and screen instant playback mode and be distributed to the user;
Data acquisition A gent, intelligent management Agent, computational analysis Agent, displaying Agent communicate by letter connected successively.
Described intelligent management Agent also is connected with knowledge base;
Described knowledge base is respective rule, for example how intelligent management Agent a plurality of data of monitoring point that will receive are distributed to computational analysis Agent and are calculated, for example how long intelligent management Agent does not communicate by letter out of touch at last with data acquisition A gent, if out of touch will start new data acquisition A gent, remove to monitor corresponding monitoring terminal.
The present invention also provides a kind of real-time analysis method of voltage dip based on multi-Agent, and each different operating of the method is realized by the agent of difference in functionality, then by the communication between different agent, has worked in coordination with the real-time analysis demonstration of the event of falling temporarily.
The method step is:
Step 1: data acquisition A gent real-time response monitoring point reporting information data;
Step 2: intelligent management Agent coordinated scheduling computational analysis Agent, realize that each monitoring point falls temporarily the event parallel computation and processes;
Step 3: computational analysis Agent, carry out the calculating of eigenwert, to temporarily source being positioned to data;
Step 4: show that Agent will fall temporarily the event analysis result with note, E-mail and screen instant playback mode and be distributed to the user;
The calculating of in described step 3, data being carried out to eigenwert comprises the following steps:
Step S1: initiation parameter, comprise that minimum value is made as first effective value, search sign and be set to false
Step S2: traversal RMS curve, run into the point that first effective value is less than or equal to 0.9 times of reference voltage value, be designated as the start time point, put to search and be masked as true;
Step S3: be masked as true if search and run into the point that an effective value is greater than 0.9 times of reference voltage value, be designated as the concluding time point, put to search and be masked as false;
Step S4: in the process of traversal, judge whether current effective value is less than current minimum value, if be less than, replace minimum value, corresponding value is temporary range of decrease value, and record falls temporarily and is mutually the phase at current minimum value place simultaneously;
Step S5: last zero-computing time=starting point * dot cycle+curve start time, the duration=(end point-starting point) * dot cycle.
Beneficial effect of the present invention: invention provides a kind of real-time analyzer of voltage dip based on multi-Agent, this system to make monitoring point in a single day monitor temporary drop data just can to show by the cooperation real-time calculation and analysis between a plurality of Agent.Simultaneously due to the event of falling temporarily, have propagation characteristic, present distributed nature, so when the three unities generation was fallen temporarily, the same time period was generally that a plurality of monitoring points all can capture this event, can distribute to a plurality of computational analysis Agent place's parallel processings.Advantage of the present invention is, after the event of falling temporarily occurs, a plurality of monitoring points all can capture this event, distribute to a plurality of computational analysis Agent place's parallel processings, show in real time, this system will be processed reach with the off-line analysis of AM/BAM centralized calculation mode, realize real-time on-line analysis processing, ageing higher.
The accompanying drawing explanation
A kind of real-time analyzer of voltage dip based on multi-Agent of Fig. 1 structural representation.
A kind of real-time analysis method of voltage dip based on multi-Agent of Fig. 2 process flow diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, a kind of real-time analyzer of voltage dip based on multi-Agent, this system comprises data acquisition A gent, intelligent management Agent, computational analysis Agent, shows Agent;
Data acquisition A gent real-time response monitoring point reporting information data;
Intelligent management Agent coordinated scheduling computational analysis Agent, realize that each monitoring point falls temporarily the event parallel computation and processes;
Computational analysis Agent carries out the calculating of eigenwert to data, to temporarily source being positioned;
Show that Agent will fall temporarily the event analysis result with note, E-mail and screen instant playback mode and be distributed to the user;
Data acquisition A gent, intelligent management Agent, computational analysis Agent, displaying Agent communicate by letter connected successively.
Described intelligent management Agent also is connected with knowledge base;
Described knowledge base is respective rule, for example how intelligent management Agent a plurality of data of monitoring point that will receive are distributed to computational analysis Agent and are calculated, for example how long intelligent management Agent does not communicate by letter out of touch at last with data acquisition A gent, if out of touch will start new data acquisition A gent, remove to monitor corresponding monitoring terminal.
Voltage dip real-time analysis method based on multi-Agent, each different operating of the method is realized by the agent of difference in functionality, then by the communication between different agent, worked in coordination with the real-time analysis demonstration of the event of falling temporarily, Fig. 2 is a kind of real-time analysis method of voltage dip based on multi-Agent process flow diagram, as shown in Figure 2, the method step is:
Step 1: data acquisition A gent, connect with monitoring terminal, from monitoring terminal, obtains data and judge whether to occur to fall temporarily, falls temporarily if occur, and sends the data to intelligent management Agent.
Step 2: intelligent management Agent, in the same time, may there be a plurality of monitoring terminals to find to fall temporarily, according to rule in knowledge base, temporary drop data is distributed to corresponding calculating Agent and calculate.According to the knowledge base rule, judge, if out of touch with data acquisition A gent, start an Agent and replace this data acquisition A gent, remove to monitor corresponding monitoring terminal.If data are too many simultaneously, the new calculating Agent of corresponding startup.
Step 3: computational analysis Agent: data are carried out to the calculating of eigenwert, to temporarily source being positioned.Calculate complete sending the data to and show Agent, the while can be deposited database, to facilitate, data is excavated.
Step 4: show Agent, Agent sends over data according to computational analysis, shows result of calculation.
The Agent of each function is deployed on server, make data acquisition A gent remove to monitor the electric energy quality monitoring terminal in a given area, when one or more electric energy quality monitoring terminal monitors temporary drop data, pass to intelligent management Agent, intelligent management Agent gives different analytical calculation Agent according to the monitoring period by data allocations, analytical calculation Agent carries out parallel computation to data, then result is passed to and shows that Agent carries out real-time demonstration.
[embodiment]
The present embodiment starts 3 data and gathers Agent, and title is respectively collectAgent1, collectAgent2, collectAgent3; 4 analytical calculation Agent, title is respectively calculateAgent1, calculateAgent2, calculateAgent3, calculateAgent4; Configure each data acquisition A gent and be responsible for fixing monitoring point, it is 1,2,3 monitoring point that collectAgent1 is responsible for monitoring period; CollectAgent2 is responsible for monitoring point 4,5,6; CollectAgent3 is responsible for monitoring point 7,8,9; When the three unities occurs to fall event temporarily, the same time period, a plurality of monitoring points all can capture this event, there is one or more data acquisition A gent to get data, after getting data, data acquisition A gent sends to data in intelligent management Agent, intelligent management Agent receives data, get every monitoring period that data are corresponding, then according to rule by data allocations in analytical calculation Agent.The rule of herein using is carried out modular arithmetic for the monitoring period to the number of analytical calculation agent, result is 0 and distributes to calculateAgent1, result is 1 and distributes to calculateAgent2, result is 2 and distributes to calculateAgent3, result is 3 and distributes to calculateAgent4, when distributing, find in the taskbar of this analytical calculation Agent that task is over 3, distribute to next analytical calculation Agent, in order to avoid some analytical calculation Agent tasks are too much, other analytical calculation Agent is in idle state.Analytical calculation Agent takes data and goes computation of characteristic values, after having calculated, removes to upgrade servlet and removes automatically to upgrade the page, realizes real-time demonstration.
Those skilled in the art can make the many variations example to the present invention according to the above description.Thereby the specific implementation in embodiment should not form restriction of the present invention, the present invention will be usingd scope that attached claims define as protection scope of the present invention.
Claims (5)
1. the real-time analyzer of the voltage dip based on multi-Agent, is characterized in that, this system comprises data acquisition A gent, intelligent management Agent, computational analysis Agent, shows Agent;
Data acquisition A gent real-time response monitoring point reporting information data;
Intelligent management Agent coordinated scheduling computational analysis Agent, realize that each monitoring point falls temporarily the event parallel computation and processes;
Computational analysis Agent carries out the calculating of eigenwert to data, to temporarily source being positioned;
Show that Agent will fall temporarily the event analysis result with note, E-mail and screen instant playback mode and be distributed to the user;
Data acquisition A gent, intelligent management Agent, computational analysis Agent, displaying Agent communicate by letter connected successively.
2. a kind of real-time analyzer of voltage dip based on multi-Agent according to claim 1, is characterized in that, described intelligent management Agent also is connected with knowledge base, and described knowledge base is the set of respective rule.
3. a kind of real-time analyzer of voltage dip based on multi-Agent according to claim 2, is characterized in that, described rule is how a plurality of data of monitoring point that intelligent management Agent will receive are distributed to computational analysis Agent and calculated; Perhaps how long intelligent management Agent and data acquisition A gent do not communicate by letter out of touchly at last, if out of touch will start new data acquisition A gent, remove to monitor corresponding monitoring terminal.
4. real-time analysis method of the voltage dip based on multi-Agent, it is characterized in that, each different operating of the method is realized by the agent of difference in functionality, then by the communication between different agent, has worked in coordination with the real-time analysis demonstration of the event of falling temporarily, and the method step is:
Step 1: data acquisition A gent real-time response monitoring point reporting information data, and transfer data to intelligent management Agent;
Step 2: intelligent management Agent receives the data that data acquisition A gent passes over, and coordinated scheduling computational analysis Agent, pass to computational analysis Agent by data, realizes that each monitoring point falls temporarily the event parallel computation and processes;
Step 3: computational analysis Agent receives the data that intelligent management Agent passes over, and data is carried out to the calculating of eigenwert, to temporarily source being positioned, and result of calculation is passed to and shows Agent;
Step 4: show that Agent receives the data that computational analysis Agent passes over, will fall temporarily the event analysis result with note, E-mail and screen instant playback mode and be distributed to the user.
5. according to the described a kind of real-time analysis method of voltage dip based on multi-Agent of right 4, it is characterized in that, the described calculating that data are carried out to eigenwert comprises the following steps:
Step S1: initiation parameter, comprise that at least minimum value is made as first effective value, search sign and be set to false;
Step S2: traversal RMS curve, run into the point that first effective value is less than or equal to 0.9 times of reference voltage value, be designated as the start time point, put to search and be masked as true;
Step S3: be masked as true if search and run into the point that an effective value is greater than 0.9 times of reference voltage value, be designated as the concluding time point, put to search and be masked as false;
Step S4: in the process of traversal, judge whether current effective value is less than current minimum value, if be less than, replace minimum value, corresponding value is temporary range of decrease value, and record falls temporarily and is mutually the phase at current minimum value place simultaneously;
Step S5: last zero-computing time=starting point * dot cycle+curve start time, the duration=(end point-starting point) * dot cycle.
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| CN109255189A (en) * | 2018-09-17 | 2019-01-22 | 华北电力大学 | The parallel real-time mode recognizing method of voltage dip based on streaming computing |
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