CN105207855A - Monitoring and evaluating system and method for network source information - Google Patents

Monitoring and evaluating system and method for network source information Download PDF

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Publication number
CN105207855A
CN105207855A CN201510688043.8A CN201510688043A CN105207855A CN 105207855 A CN105207855 A CN 105207855A CN 201510688043 A CN201510688043 A CN 201510688043A CN 105207855 A CN105207855 A CN 105207855A
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Prior art keywords
information
monitoring
telint
agc
main frame
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CN201510688043.8A
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CN105207855B (en
Inventor
杨帆
徐帅
张明
张健
张翼
张顺仁
施宏亮
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Shanghai Minghua Electric Power Technology and Engineering Co Ltd
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Shanghai Minghua Electric Power Technology and Engineering Co Ltd
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    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Abstract

The invention relates to a monitoring and evaluating system and method for network source information. The monitoring and evaluating system comprises a dispatching master station, a dispatching communication network and a slave station, wherein the dispatching master station is connected with the slave station through the dispatching communication network; the slave station comprises a remote mobile exchanger, a mirror exchanger, a monitoring main unit, a remote mobile main unit and a server; the remote mobile exchanger is connected with the dispatching communication network and the mirror exchanger; the mirror exchanger is connected with the monitoring main unit and the remote mobile main unit; the monitoring main unit is connected with the server, and used for receiving all messages sent by the mirror exchanger, filtering the messages to remove unrelated messages, recording uplink IEC104 messages and downlink IEC104 messages, analyzing the uplink IEC104 messages and the downlink IEC104 messages, and sending the analyzed data in a server for saving. Compared with the prior art, the regulation and control response capability of a power plant is further improved, and the running control level of the power plant is improved.

Description

A kind of net source information monitoring and evaluating system and method
Technical field
The present invention relates to a kind of communication technology of electric power system, especially relate to a kind of net source information monitoring and evaluating system and method.
Background technology
The monitoring of electric power system net source information mainly to monitoring the telemechanical real time interaction information of grid-connected power plant and dispatching control center, to realize real-time to all kinds of interactive information, accuracy assesses, and to power plant operations staff provide all kinds of relate to net system operating condition and early warning timely.
Equipment based on similar operation principle mainly contains communication message recorder at home, and this kind equipment mainly contains following deficiency:
Only supervision is achieved to grid-connected assistant service relevant information, unrealized net source comprehensive monitoring;
Early warning function after unrealized assessment;
Only resolve from the angle of packet parsing telecontrol information, result is complicated, hard to understand, these information is not converted to the information that operation maintenance personnel are enough to understand.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of net source information monitoring and evaluating system and method are provided.
Object of the present invention can be achieved through the following technical solutions:
A kind of net source information monitoring and evaluating system, it is characterized in that, comprise scheduling station, dispatching communication networks, slave station, described scheduling station is connected with slave station by dispatching communication networks, described slave station comprises telemechanical switch, mirror image switch, monitoring main frame, telemechanical main frame and server, described telemechanical switch is connected with dispatching communication networks, mirror image switch respectively, and described mirror image switch is connected with monitoring main frame, telemechanical main frame respectively, and described monitoring main frame is connected with server;
Filter after all messages that the mirror image switch that receives described monitoring main frame flows out, remove the irrelevant message of ARP, RARP, ICMP, only retain IEC104 association message, and record is carried out to the IEC104 original message of uplink and downlink, the IEC104 message of uplink and downlink is resolved simultaneously, and by the data of parsing stored in server.
Described telemechanical switch and mirror image switch are equipped with two, adopt two-node cluster hot backup redundancy.
Described telemechanical switch is connected with the mirror port of mirror image switch; Described mirror image switch is connected with telemechanical main frame by IEC104 agreement; Described server is provided with for the mutual man-machine interface of web and the database for storing data; Described monitoring main frame is communication monitor log instrument.
Described server capability comprises: the assessment of drawing system equipment primary connection figure, remote signalling information evaluation, telemetry intelligence (TELINT), energy information assessment, AGC information evaluation, AVC information evaluation, generate warning information alarm window, generate warning information event, generate remote measurement out-of-limit event, display telemetry intelligence (TELINT) table, display remote signalling information table, display generation schedulecurve figure and show all kinds of remote measurement curve.
A kind of net source information monitoring and assessing method, is characterized in that, comprising:
1) remote signalling information evaluation process;
2) telemetry intelligence (TELINT) evaluation process;
3) information about power evaluation process;
4) AGC information evaluation process;
With or 5) AVC information evaluation process.
Described remote signalling information evaluation process is specially: remote signalling information carries out graphical representation in the mode of electric power factory equipment primary connection figure and alarm window alarm, by the consistency of the display and virtual condition of checking state, assess the correctness of this type of remote signalling information, wherein electric power factory equipment primary connection figure comprises circuit-breaker status and isolating switch state.
Described telemetry intelligence (TELINT) evaluation process is specially: in conjunction with the graphical representation of telemetry intelligence (TELINT), the assessment of telemetry intelligence (TELINT) is realized by the mode of off-limit alarm, arranges alarm threshold value to the voltage contained by telemetry intelligence (TELINT), electric current, real measured data that is meritorious, idle, line current; When remote measurement is out-of-limit, records out-of-limit time and numerical value, and generate warning information.
Described information about power evaluation process is specially: information about power is read as master with graphical representation and through engineering approaches, shown by the mode of electric energy balance, unit, circuit and high standby power transformation amount and system-transformer unit unbalance factor is counted, house-service consumption rate according to information about power.
Described AGC information evaluation process is specially: AGC information evaluation system to the composite valuations of telemetry intelligence (TELINT), remote signalling information and AGC regulating command information, by the devoting rate K of AGC a, response time Δ T, regulations speed V, adjusting deviation amount P Δ, regulation depth Δ P index calculating, to realize composite valuations to AGC information at mains side.
Described AVC information evaluation process is specially: statistical summaries AVC instruction moment T 0, current busbar voltage V 1, target exerts oneself V 2, control model, adjustment start time T s, regulate initial voltage V s, regulate finish time T e, regulate end voltage V einformation, to the devoting rate K of AVC a, response time Δ T, regulations speed V, adjusting deviation amount V Δ, regulated quantity Δ V index calculate.
Compared with prior art, the present invention has the following advantages:
1) realize the Real-Time Monitoring of net source interactive information, be convenient to understand sorts of systems current operating state;
2) realize all kinds of net source information through engineering approaches to show, be convenient to understand, analyze;
3) assessment of various information is realized, be convenient to realize to the reception accuracy of all kinds of scheduling regulation and control instruction, the statistics that processes promptness rate, be controlled to power, further lifting power plant regulation and control responding ability, improves power-plant operation level of control, promotes power plant high-quality, economical operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the flow chart of remote signalling information evaluation of the present invention;
Fig. 3 is the flow chart of telemetry intelligence (TELINT) of the present invention assessment;
Fig. 4 is the flow chart of information about power of the present invention assessment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 1, a kind of net source information monitoring and evaluating system, comprise scheduling station 3, dispatching communication networks 2, slave station 1, described scheduling station 3 is connected with slave station 1 by dispatching communication networks 2, described slave station 1 comprises telemechanical switch 11, mirror image switch 12, monitors main frame 14, telemechanical main frame 13 and server 15, described telemechanical switch 11 is connected with dispatching communication networks 2, mirror image switch 12 respectively, described mirror image switch 12 is connected with monitoring main frame 14, telemechanical main frame 13 respectively, and described monitoring main frame 14 is connected with server 15.
Described telemechanical switch 13 and mirror image switch 12 are equipped with two, adopt two-node cluster hot backup redundancy.Described telemechanical switch 11 is connected with the mirror port of mirror image switch 12.Described mirror image switch 12 is connected with telemechanical main frame 13 by IEC104 agreement.Described server 15 is provided with for the mutual man-machine interface of web and the database for storing data.Described monitoring main frame 14 is communication monitor log instrument.
Arranged by mirror image switch 12 port and realize net source information data image, then by communication monitor log instrument, net source information is resolved, finally realize Data classification and warehouse-in at server, and according to information evaluation technology, all kinds of net source information is assessed.
All ethernet frames flow to and flow out of telemechanical switch mouth are copied the mirror port that portion delivers to switch by mirror image switch 12.
Monitor main frame 14 network interface be connected with mirror image switch 12 is set to " promiscuous mode ", so that all messages that desampler mirror port flows out; Monitor main frame 14 and filter the message received from mirror image switch 12, remove the irrelevant messages such as ARP, RARP, ICMP, only retain IEC104 association message.The IEC104 original message monitoring main frame 14 pairs of uplink and downlink carries out record, resolves the IEC104 message of uplink and downlink simultaneously, and by the data of parsing stored in the MySQL database of server.
Server 15 is responsible for preserving the historical data of having resolved, and arranges historical data, processes and calculate, and server also provides man-machine interface in the mode of Web in addition.Server starts the database service of a MySQL and the Web service of an Apache, and major function comprises drawing system equipment primary connection figure, remote signalling information evaluation, telemetry intelligence (TELINT) assessment, energy information assessment, AGC information evaluation, AVC information evaluation, generation warning information alarm window, generates warning information event, generation remote measurement out-of-limit event, display telemetry intelligence (TELINT) table, display remote signalling information table, shows generation schedulecurve figure, shows all kinds of remote measurement curves etc.
Net source information appraisal procedure of the present invention is specially:
1, remote signalling information evaluation process, as shown in Figure 2, remote signalling information carries out graphical representation with electric power factory equipment primary connection figure (circuit-breaker status, isolating switch state) and the mode of alarm window alarm, by the consistency of the display and virtual condition of checking state, the correctness of this type of remote signalling information can be assessed.
2, telemetry intelligence (TELINT) appraisal procedure, as shown in Figure 3, in conjunction with the graphical representation of telemetry intelligence (TELINT), the assessment of telemetry intelligence (TELINT) realizes by the mode of off-limit alarm, arranges alarm threshold value to real measured datas such as the voltage contained by telemetry intelligence (TELINT), electric current, meritorious, idle, line currents.When remote measurement is out-of-limit, records out-of-limit time and numerical value, and generate warning information, table 1 is the setting of remote measurement alarm threshold value.
Table 1
3, information about power appraisal procedure, as shown in Figure 4, information about power is read as master with graphical representation and through engineering approaches, is shown by the mode of electric energy balance, unit, circuit and high standby power transformation amount and system-transformer unit unbalance factor can be counted, house-service consumption rate according to information about power.
4, AGC information evaluation method
AGC information evaluation system is to the composite valuations of telemetry intelligence (TELINT), remote signalling information and AGC regulating command information etc., and related data information content is as shown in table 2.
Table 2
Information type The information content
Remote measurement Unit active power
AGC regulating command AGC desired value
Remote signalling AGC drops into/exits
Remote signalling AGC alarm
Time stamp Information acceptance/or transmitting time
By calculating above-mentioned information, can statistical summaries AGC instruction moment (T 0), the current (P that exerts oneself 1), target exerts oneself (P 2), control model, adjustment start time (T s), regulate start (the P that exerts oneself s), regulate finish time (T e), regulate end to exert oneself (P e) etc. information, carry out the devoting rate (K of AGC a), the response time (Δ T), regulations speed (V), adjusting deviation amount (P Δ), the calculating of the index such as regulation depth (Δ P), to realize the composite valuations to AGC information at mains side.
● devoting rate (K a)
AGC devoting rate refers in measurement period, during unit operation, and the time accounting of AGC keeping devotion state, measurement period is generally the moon, and available formula (1) represents:
formula (1)
In formula, AGC making time can be added up by " AGC drops into/exits " signal displacement time.
● the response time (Δ t)
After the AGC response time refers to that scheduling EMS system sends instruction, unit output starts on the basis in force in adjustment, the time that the adjustment dead band reliably stepped out and regulate direction consistent is used, unit is second (S), and available formula (2) represents:
Δ T=T s-T 0formula (2)
● regulations speed (V)
AGC regulations speed refers to the speed of unit response target instruction target word, and unit is MW/ minute, and available formula (3) represents:
V = P E - P S T E - T S × 60 Formula (3)
In formula, T s, T eunit is second (S).
● adjusting deviation amount (P Δ)
Unit response target instruction target word starts to regulate in rear extremely adjustment end time interval, and unit output surrounding target P2 can produce fluctuation.Namely AGC adjusting deviation amount refers within the of this sort period, and carry out integration to the absolute value of the actual difference of exerting oneself with target of exerting oneself, then use integrated value divided by the time of integration, be the adjusting deviation amount of this period, unit is MW, and available formula (4) represents:
P Δ = ∫ T S T E | P ( t ) - P 2 | × d t T E - T S × 100 % Formula (4)
In formula, P (t)for exerting oneself for its actual within this period.
● regulation depth (Δ P)
After AGC regulation depth and unit respond this regulating command, practical adjustments is exerted oneself amplitude, and unit is MW, and available formula (5) represents:
Δ P=P e-P 0formula (5)
5, AVC information evaluation method
AVC related data information content is as shown in table 3.
Table 3
Information type The information content
Remote measurement Busbar voltage
Remote measurement Generator terminal voltage
Remote measurement Unit reactive power
AVC regulating command AVC desired value
Remote signalling AVC drops into/exits
Remote signalling AVC alarm
Time stamp Information acceptance/or transmitting time
Statistical summaries AVC instruction moment (T 0), current busbar voltage (V 1), target exerts oneself (V 2), control model, adjustment start time (T s), regulate initial voltage (V s), regulate finish time (T e), regulate end voltage (V e) etc. information, to the devoting rate (K of AVC a), the response time (Δ T), regulations speed (V), adjusting deviation amount (V Δ), the index such as regulated quantity (Δ V) calculates.
● devoting rate (K a)
AVC devoting rate refers in measurement period, during unit operation, and the time accounting of AVC keeping devotion state, measurement period is generally the moon, and available formula (6) represents:
formula (6)
In formula, AVC making time can be added up by " AVC drops into/exits " signal displacement time.
● the response time (Δ t)
After the AVC response time refers to that scheduling EMS system sends instruction, busbar voltage is regulating on the basis starting voltage, the time that the adjustment dead band reliably stepped out and regulate direction consistent is used, unit is second (S), and available formula (7) represents:
Δ T=T s-T 0formula (7)
● regulations speed (V)
AVC regulations speed refers to the speed of unit response target instruction target word, and unit is V/ minute, and available formula (8) represents:
V = V E - V S T E - T S × 60 Formula (8)
In formula, T s, T eunit is second (S).
● adjusting deviation amount (V Δ)
Unit response target instruction target word starts to regulate in rear extremely adjustment end time interval, and busbar voltage surrounding target V2 can produce fluctuation.Namely AVC adjusting deviation amount refers within the of this sort period, and carry out integration to the absolute value of the difference of virtual voltage and target voltage, then use integrated value divided by the time of integration, be the adjusting deviation amount of this period, unit is V, and available formula (9) represents:
V Δ = ∫ T S T E | V ( t ) - V 2 | × d t T E - T S × 100 % Formula (9)
In formula, V (t)for exerting oneself for its actual within this period.
● regulated quantity (Δ V)
After AVC regulation depth and unit respond this regulating command, practical adjustments voltage, unit is V, and available formula (10) represents:
Δ V=V e-V 0formula (10)

Claims (10)

1. a net source information monitoring and evaluating system, it is characterized in that, comprise scheduling station, dispatching communication networks, slave station, described scheduling station is connected with slave station by dispatching communication networks, described slave station comprises telemechanical switch, mirror image switch, monitoring main frame, telemechanical main frame and server, described telemechanical switch is connected with dispatching communication networks, mirror image switch respectively, and described mirror image switch is connected with monitoring main frame, telemechanical main frame respectively, and described monitoring main frame is connected with server;
Filter after all messages that the mirror image switch that receives described monitoring main frame flows out, remove the irrelevant message of ARP, RARP, ICMP, only retain IEC104 association message, and record is carried out to the IEC104 original message of uplink and downlink, the IEC104 message of uplink and downlink is resolved simultaneously, and by the data of parsing stored in server.
2. a kind of net source information monitoring and evaluating system according to claim 1, it is characterized in that, described telemechanical switch and mirror image switch are equipped with two, adopt two-node cluster hot backup redundancy.
3. a kind of net source information monitoring and evaluating system according to claim 1, it is characterized in that, described telemechanical switch is connected with the mirror port of mirror image switch; Described mirror image switch is connected with telemechanical main frame by IEC104 agreement; Described server is provided with for the mutual man-machine interface of web and the database for storing data; Described monitoring main frame is communication monitor log instrument.
4. a kind of net source information monitoring and evaluating system according to claim 1, it is characterized in that, described server capability comprises: the assessment of drawing system equipment primary connection figure, remote signalling information evaluation, telemetry intelligence (TELINT), energy information assessment, AGC information evaluation, AVC information evaluation, generate warning information alarm window, generate warning information event, generate remote measurement out-of-limit event, display telemetry intelligence (TELINT) table, display remote signalling information table, display generation schedulecurve figure and show all kinds of remote measurement curve.
5. a net source information monitoring and assessing method as claimed in claim 1, is characterized in that, comprising:
1) remote signalling information evaluation process;
2) telemetry intelligence (TELINT) evaluation process;
3) information about power evaluation process;
4) AGC information evaluation process;
With or 5) AVC information evaluation process.
6. method according to claim 5, it is characterized in that, described remote signalling information evaluation process is specially: remote signalling information carries out graphical representation in the mode of electric power factory equipment primary connection figure and alarm window alarm, by the consistency of the display and virtual condition of checking state, assess the correctness of this type of remote signalling information, wherein electric power factory equipment primary connection figure comprises circuit-breaker status and isolating switch state.
7. method according to claim 5, it is characterized in that, described telemetry intelligence (TELINT) evaluation process is specially: in conjunction with the graphical representation of telemetry intelligence (TELINT), the assessment of telemetry intelligence (TELINT) is realized by the mode of off-limit alarm, arranges alarm threshold value to the voltage contained by telemetry intelligence (TELINT), electric current, real measured data that is meritorious, idle, line current; When remote measurement is out-of-limit, records out-of-limit time and numerical value, and generate warning information.
8. method according to claim 5, it is characterized in that, described information about power evaluation process is specially: information about power is read as master with graphical representation and through engineering approaches, shown by the mode of electric energy balance, unit, circuit and high standby power transformation amount and system-transformer unit unbalance factor is counted, house-service consumption rate according to information about power.
9. method according to claim 5, is characterized in that, described AGC information evaluation process is specially: AGC information evaluation system to the composite valuations of telemetry intelligence (TELINT), remote signalling information and AGC regulating command information, by the devoting rate K of AGC a, response time Δ T, regulations speed V, adjusting deviation amount P Δ, regulation depth Δ P index calculating, to realize composite valuations to AGC information at mains side.
10. method according to claim 5, is characterized in that, described AVC information evaluation process is specially: statistical summaries AVC instruction moment T 0, current busbar voltage V 1, target exerts oneself V 2, control model, adjustment start time T s, regulate initial voltage V s, regulate finish time T e, regulate end voltage V einformation, to the devoting rate K of AVC a, response time Δ T, regulations speed V, adjusting deviation amount V Δ, regulated quantity Δ V index calculate.
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