CN107516940B - Intelligent discrimination method for scheduling automation remote control operation synchronization function - Google Patents
Intelligent discrimination method for scheduling automation remote control operation synchronization function Download PDFInfo
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- CN107516940B CN107516940B CN201710647181.0A CN201710647181A CN107516940B CN 107516940 B CN107516940 B CN 107516940B CN 201710647181 A CN201710647181 A CN 201710647181A CN 107516940 B CN107516940 B CN 107516940B
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- 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
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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
- 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
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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
- 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
- Y04S10/16—Electric power substations
Abstract
The invention relates to the technical field of transformer substation switch synchronization control, in particular to an intelligent judgment method for scheduling automation remote control operation synchronization functions, which comprises the steps of directly collecting voltages on two sides of a switch, evaluating the voltages on the two sides of the switch, comparing the directly collected results with the evaluations, estimating a fixed value required to be set by a synchronization device according to the electrified conditions on the two sides of the switch when the voltages are matched, and determining that the fixed value estimated by the synchronization device is consistent with the fixed value set by the synchronization device through comparison to determine remote control closing operation; the comparison determines that the fixed value estimated by the synchronizing device is inconsistent with the fixed value set by the synchronizing device, sends a synchronizing device state fixed value remote setting command, resets the substation synchronizing device state fixed value to meet the requirement of switching on, compares two judgment results of actually measured collected data and system estimated data of the voltage on two sides of the switch, and automatically selects a correct synchronizing mode through a dispatching automation master station system to realize a remote control intelligent synchronizing selection function.
Description
Technical Field
The invention relates to the technical field of transformer substation switch synchronization control, in particular to an intelligent judgment method for a scheduling automation remote control operation synchronization function.
Background
With the increasing maturity of power grid dispatching automation technology, most transformer substations realize an unattended operation mode, monitoring personnel remotely monitor and control the transformer substations through a dispatching automation master station system, when the dispatching monitoring personnel remotely control ring network switches with electrified two sides, the two ends of the switches need to be synchronously checked, and the synchronous checking function is completed by transformer substation synchronous devices. Setting of the transformer substation switch synchronization device generally has three options, namely synchronization detection, no voltage detection and self-adaption; at present, when a dispatching monitoring person remotely controls a transformer substation switch through a dispatching automation master station system, the dispatching automation system does not have the function of prejudging the set state of a transformer substation switch synchronous device, the live conditions of two sides of a ring network switch and the setting mode of synchronous equipment need to be confirmed manually, when the live conditions of two sides and the setting mode of the synchronous equipment are confirmed to be consistent, the dispatching monitoring person sends a remote control command from the dispatching automation master station system, and otherwise, the remote control switching-on is unsuccessful or the potential hazard of safety accidents is brought to a power grid can be caused.
Disclosure of Invention
The invention overcomes at least one defect in the prior art and provides an intelligent judgment method for the synchronous function of dispatching automation remote control operation, which compares two judgment results of actually measured collected data and system estimated data of voltages at two sides of a switch, determines the actually selected synchronous mode according to the consistency of synchronous selection results obtained by the two methods, and automatically selects the correct synchronous mode through a dispatching automation master station system to realize the intelligent synchronous selection function of remote control.
In order to solve the technical problems, the invention adopts the technical scheme that: an intelligent discrimination method for scheduling automation remote control operation synchronization function comprises the following steps:
s1: when a switch remote control closing command is executed, directly collecting the voltage on the two sides of the switch, and evaluating the charged state on the two sides of the switch;
when a switch remote control closing command is executed, the voltages on the two sides of the switch are respectively and directly collected, the charged states on the two sides of the switch are evaluated while direct collection is carried out, and direct collection data and evaluation data of the voltages are respectively obtained.
S2: after the step S1 is completed, comparing the direct sampling voltage values at the two sides of the switch with the charged state evaluation result, and if the direct sampling voltage values are not matched with the evaluation result, giving an alarm; if the direct sampling voltage value is consistent with the evaluation result, the next step is carried out;
comparing the direct sampling data with the evaluation data, and judging that the direct sampling voltage value is consistent with the evaluation result when the state evaluation result is electrified and the direct sampling voltage value is a numerical value close to the voltage grade or the state evaluation result is uncharged and the direct sampling voltage value is close to or equal to zero; otherwise, judging the information is not matched and sending out the non-matching alarm information.
S3: after the step S2 is finished, a fixed value required to be set by the synchronous device is estimated according to the electrification conditions of the two sides of the switch;
s4: after the step S3 is finished, comparing the fixed value estimated by the synchronous device and the fixed value set by the synchronous device, and determining remote control closing operation; and comparing and determining that the set value estimated by the synchronizing device is inconsistent with the set value set by the synchronizing device, sending a synchronizing device state set value remote setting command, and resetting the substation synchronizing device state set value to meet the requirement of switching on.
In one embodiment, the electrified state of the two sides of the switch is evaluated according to the topological connection relation of the two sides of the switch and the equipment and related remote signaling and remote measuring data.
In order to improve the accuracy of the evaluation of the electrified states of the two sides of the switch, a plurality of data are required to be integrated to evaluate the electrified states of the two sides of the switch, so that the accuracy of an evaluation result is improved.
In one embodiment, the condition that two sides of the switch are electrified is that one side is electrified and the other side is not electrified, and the fixed value required to be set by the synchronous device is the voltage for detection; the electrified condition of both sides of the switch is electrified or both sides are uncharged, and the fixed value required to be set by the synchronization device is the synchronization period of the detection.
The fixed value required to be set by the synchronization device is set according to the difference of the electrified conditions of the two sides of the switch, so that the safety during synchronization operation can be ensured, and the intellectualization of synchronization function selection is realized.
Compared with the prior art, the invention provides an intelligent judgment method for the synchronization function of dispatching automation remote control operation, which compares two judgment results of actually measured acquired data and system estimated data of voltages at two sides of a simulated remote control switch, determines the actual synchronization mode (synchronization or no voltage detection) to be selected according to the consistency of synchronization selection results obtained by the two methods, and realizes the intelligent synchronization selection function of remote control by automatically selecting the correct synchronization mode through a dispatching automation master station system. The safety of remote control closing can be improved, and safety accidents are avoided.
Drawings
FIG. 1 is a schematic process flow diagram of one embodiment of the present invention.
Detailed Description
The drawings are for illustration purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.
Example 1:
as shown in fig. 1, the present invention provides an intelligent discrimination method for scheduling automation remote control operation synchronization function, which comprises the following steps:
s1: when a switch remote control closing command is executed, directly collecting the voltage on the two sides of the switch, and evaluating the charged state on the two sides of the switch;
s2: after the step S1 is completed, comparing the direct sampling voltage values at the two sides of the switch with the charged state evaluation result, and if the direct sampling voltage values are not matched with the evaluation result, giving an alarm; if the direct sampling voltage value is consistent with the evaluation result, the next step is carried out;
s3: after the step S2 is finished, a fixed value required to be set by the synchronous device is estimated according to the electrification conditions of the two sides of the switch;
s4: after the step S3 is finished, comparing the fixed value estimated by the synchronous device and the fixed value set by the synchronous device, and determining remote control closing operation; and comparing and determining that the set value estimated by the synchronizing device is inconsistent with the set value set by the synchronizing device, sending a synchronizing device state set value remote setting command, and resetting the substation synchronizing device state set value to meet the requirement of switching on.
In step S1 of the present invention, when a switch remote control closing command is executed, the voltages Um and Un on both sides of the switch are directly collected, and the charged states on both sides of the switch are evaluated, so as to obtain the direct collecting data and the evaluation data of the voltage, respectively, for comparing the direct collecting data and the evaluation data of the voltage in the subsequent steps. In order to improve the accuracy of the evaluation of the electrified states of the two sides of the switch, the topological connection relation between the two sides of the switch and equipment and related remote signaling and remote measuring data are integrated to evaluate the electrified states of the two sides of the switch, so that the accuracy of an evaluation result is ensured.
In step S2, matching degree comparison is performed between the direct sampling voltage values of Um and Un on both sides M, N of the switch and the evaluation result of the charged state, and the direct sampling data and the evaluation data are compared, where the state evaluation result is charged, when the direct sampling voltage value is a value close to the voltage level, or when the state evaluation result is uncharged, and if the direct sampling voltage value is close to or equal to zero, it is determined that the direct sampling voltage value matches the evaluation result; otherwise, judging the information is not matched and sending out the non-matching alarm information.
In step S3, when it is estimated that the fixed value that needs to be set by the synchronous device is not set, if the charging condition of the two sides of the switch is that one side is charged and the other side is not charged, the fixed value that needs to be set by the synchronous device is not detected; the electrified condition of both sides of the switch is electrified or both sides are uncharged, the fixed value required to be set by the synchronization device is the synchronization detection period, and the intellectualization of the selection of the synchronization function is realized.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (2)
1. An intelligent discrimination method for synchronous functions of dispatching automation remote control operation is characterized by comprising the following steps:
s1: when a switch remote control closing command is executed, directly collecting the voltage on the two sides of the switch, and evaluating the charged state on the two sides of the switch;
s2: after the step S1 is completed, comparing the direct sampling voltage values at the two sides of the switch with the charged state evaluation result, and if the direct sampling voltage values are not matched with the evaluation result, giving an alarm; if the direct sampling voltage value is consistent with the evaluation result, the next step is carried out;
s3: after the step S2 is finished, a fixed value required to be set by the synchronous device is estimated according to the electrification conditions of the two sides of the switch;
s4: after the step S3 is finished, comparing the fixed value estimated by the synchronous device and the fixed value set by the synchronous device, and determining remote control closing operation; comparing and determining that the fixed value estimated by the synchronizing device is inconsistent with the fixed value set by the synchronizing device, sending a synchronizing device state fixed value remote setting command, and resetting the substation synchronizing device state fixed value to meet the requirement of switching on; in step S1, the charging state of the two sides of the switch is evaluated according to the topological connection relationship between the two sides of the switch and the equipment and the related remote signaling and telemetry data.
2. The intelligent discrimination method for the synchronization function of the dispatching automation remote control operation according to claim 1, wherein in step S3, the condition that the switch is electrified on both sides is that one side is electrified and the other side is not electrified, and the fixed value required to be set by the synchronization device is no voltage detection; the electrified condition of both sides of the switch is electrified or both sides are uncharged, and the fixed value required to be set by the synchronization device is the synchronization period of the detection.
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| CN102064611B (en) * | 2011-01-06 | 2012-12-05 | 国电南瑞科技股份有限公司 | Transformer substation sequentialization control system with visualization and interactivity |
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| CN203522213U (en) * | 2013-09-24 | 2014-04-02 | 攀钢集团攀枝花钢钒有限公司 | Bus tie closing synchronism check function control system |
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