CN103236695B - Power distribution network loop closing current switching method and device, and power distribution terminal - Google Patents
Power distribution network loop closing current switching method and device, and power distribution terminal Download PDFInfo
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Abstract
The embodiment of the invention provides a power distribution network loop closing current switching method and a device, and a power distribution terminal, which are applied to loop closing operation of a power distribution network. The method comprises the following steps: receiving a loop closing command sent by a main station; acquiring real-time parameters of a power network; and comparing the real-time parameters of the power network and a loop closing constant value, and judging whether a current condition meets a loop closing operation condition or not, if yes, carrying out loop closing operation according to the loop closing command. The embodiment of the invention provides a power distribution network loop closing current switching scheme with dual judgment of the main station and the terminal; the main station sends the loop closing command to the power distribution terminal after judging that the power distribution network meets the requirements of loop closing; the power distribution terminal also needs to acquire the real-time parameters of the power network, and compares the real-time parameters of the power network and the loop closing constant value after receiving the loop-closing command sent by the main station, and if the loop closing operation condition is met, loop closing operation is carried out according to the loop closing command; and the dual-judgment manner can reliably ensure the accuracy of loop closing current switching operation, and prevents faulty operation of loop closing.
Description
Technical field
The present invention relates to field of power, relate to a kind of closed loop network in particular and change method for electrically, device and distribution terminal.
Background technology
Along with the fast development of distribution network construction, closed loop network changes power technology gradual perfection, and bidirectional power supply becomes conventional powering mode.The feature that power distribution network is maximum and closed-loop structure, the supply power mode of open loop operation, when falling load or line maintenance, changing electricity operation by cyclization can reduce interruption duration, improves power supply reliability.
Existing closed loop network changes the electrical network parameter that power technology mainly uploaded according to distribution terminal by main website and carries out Modeling Calculation analysis, judge whether power distribution network possesses cyclization condition, if meet cyclization condition, then send cyclization instruction to distribution terminal, after distribution terminal receives cyclization instruction, carry out corresponding Loop Closing Operation according to cyclization instruction.
But, because in power distribution network, electrical network parameter real-time change is larger, by the impact of data communication time delay between main website and distribution terminal, when the cyclization instruction that main website issues arrives distribution terminal, basic electrical network parameter in power distribution network may change, if and at this moment distribution terminal has carried out Loop Closing Operation according to cyclization instruction, the misoperation of cyclization so may be caused.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of closed loop network to change method for electrically, device and distribution terminal, in order to solve the misoperation of distribution terminal cyclization.
A kind of closed loop network changes method for electrically, is applied to the Loop Closing Operation of power distribution network, comprises:
Receive the cyclization instruction that main website sends;
Obtain electrical network real-time parameter;
Described electrical network real-time parameter and cyclization definite value are compared, judges currently whether meet Loop Closing Operation condition, if met, then carry out Loop Closing Operation according to described cyclization instruction.
Preferably, change in method for electrically at above-mentioned closed loop network, described electrical network real-time parameter and cyclization definite value compared, comprising:
By the definite value with no pressure in the both end voltage of circuit and described cyclization definite value and have compression set value to compare.
Preferably, change in method for electrically at above-mentioned closed loop network, also comprise:
If have compression set value described in described both end voltage is all greater than, then:
Cyclization pressure reduction locking definite value in the voltage difference of line voltage distribution and described cyclization definite value compared, the cyclization angular difference locking definite value in the phase angle difference of line voltage distribution and described cyclization definite value compares.
Preferably, change in method for electrically at above-mentioned closed loop network, also comprise:
To described main website feedback cyclization successful information;
If do not meet cyclization condition, then locking cyclization, and send Loop Closing Operation locking information to described main website.
Preferably, change in method for electrically at above-mentioned closed loop network, before the cyclization instruction that described reception main website sends, also comprise:
Gather cyclization relevant information, cyclization relevant information comprises the position of the switch of inlet wire circuit, three-phase voltage and three-phase current, the pressure reduction of cyclization point both sides voltage and angular difference, and the position of the switch of block switch and three-phase current;
Send cyclization relevant information to described main website, described main website is according to the cyclization relevant information above sent and utilize cyclization impulse current analytical technology to make to analyze judgement, and when meeting cyclization requirement, described main website sends described cyclization instruction.
A kind of closed loop network changes electric installation, is applied to the Loop Closing Operation of power distribution network, comprises receiving element, acquiring unit, judging unit and performance element;
Described receiving element, for receiving the cyclization instruction that main website sends;
Described acquiring unit, for obtaining electrical network real-time parameter;
Described judging unit, for described electrical network real-time parameter and cyclization definite value being compared, judge currently whether meet Loop Closing Operation condition, if met, then described performance element, for carrying out Loop Closing Operation according to described cyclization instruction.
Preferably, change in electric installation at above-mentioned closed loop network, described judging unit comprises:
First comparison module, for by the definite value with no pressure in the both end voltage of circuit and described cyclization definite value and have compression set value to compare.
Preferably, change in electric installation at above-mentioned closed loop network, described judging unit also comprises the second comparison module:
If have compression set value described in described both end voltage is all greater than, then described second comparison module, for the cyclization pressure reduction locking definite value in the voltage difference of line voltage distribution and described cyclization definite value being compared, the cyclization angular difference locking definite value in the phase angle difference of line voltage distribution and described cyclization definite value compares.
Preferably, change in electric installation at above-mentioned closed loop network, also comprise the first feedback unit, closed bite ring element and the second feedback unit:
First feedback unit, for feeding back cyclization successful information to described main website;
If do not meet cyclization condition, then described closed bite ring element, for locking cyclization, described second feedback unit, for sending Loop Closing Operation locking information to described main website.
A kind of distribution terminal, described distribution terminal comprises closed loop network and changes electric installation,
Described closed loop network changes electric installation and comprises receiving element, acquiring unit, judging unit and performance element;
Described receiving element, for receiving the cyclization instruction that main website sends;
Described acquiring unit, for obtaining electrical network real-time parameter;
Described judging unit, for described electrical network real-time parameter and cyclization definite value being compared, judge currently whether meet Loop Closing Operation condition, if met, then described performance element, for carrying out Loop Closing Operation according to described cyclization instruction.
Existing closed loop network changes the electrical network parameter that power technology mainly uploaded according to distribution terminal by main website and carries out Modeling Calculation analysis, judge whether power distribution network possesses cyclization condition, if meet cyclization condition, then send cyclization instruction to distribution terminal, after distribution terminal receives cyclization instruction, carry out corresponding Loop Closing Operation according to cyclization instruction.But because electrical network parameter real-time change in power distribution network is comparatively large, by the impact of data communication time delay between main website and distribution terminal, when the cyclization order that main website issues arrives distribution terminal, the basic electrical network parameter in power distribution network may change.The embodiment of the present invention provides the closed loop network of the dual judgement of a kind of main website+terminal to change electric scheme, main website is after judging that power distribution network possesses cyclization condition, cyclization instruction is sent to distribution terminal, distribution terminal is after the cyclization instruction receiving main website transmission, also need the real-time parameter obtaining electrical network, electrical network real-time parameter and cyclization definite value are compared, if meet Loop Closing Operation condition just carry out Loop Closing Operation according to described cyclization instruction, the mode of this dual judgement can ensure that the correct of electricity operation is changed in cyclization reliably, prevents the misoperation of cyclization.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 changes a kind of schematic flow sheet of method for electrically for closed loop network that the embodiment of the present invention provides;
Fig. 2 changes a kind of application scenarios schematic diagram of method for electrically for closed loop network that the embodiment of the present invention provides;
Fig. 3 changes a kind of structural representation of method for electrically for closed loop network that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, the embodiment of the present invention provides a kind of closed loop network to change method for electrically, comprising:
S100: receive the cyclization instruction that main website sends.
Cyclization instruction comprises the switching information that needs close a floodgate, as the positional information etc. of switch.
Before this step, can also comprise the steps: to gather cyclization relevant information, cyclization relevant information comprises the position of the switch of inlet wire circuit, three-phase voltage and three-phase current, the pressure reduction of cyclization point both sides voltage and angular difference, and the position of the switch of block switch and three-phase current, send cyclization relevant information to main website.Main website should have the interface that electricity operation is changed in cyclization, and main website is according to the cyclization relevant information above sent and utilize cyclization impulse current analytical technology to make and analyze and judge, when meeting cyclization requirement, main website transmission cyclization instruction, realizes the Loop Closing Operation of remote station institute terminal.
S110: obtain electrical network real-time parameter.
Electrical network real-time parameter at least comprises the both end voltage of circuit, the pressure reduction of line voltage distribution and angular difference.Station institute terminal D TU (Data Transfer Unit, data transmission unit) can be utilized directly to obtain electrical network real-time parameter.In addition, in order to avoid the redundancy of image data, can only gather in above-mentioned cyclization instruction the switch needing to close a floodgate electrical network real-time parameter on the line.
S120: electrical network real-time parameter and cyclization definite value are compared, judges currently whether meet Loop Closing Operation condition, if met, then carries out Loop Closing Operation according to cyclization instruction.
Cyclization definite value at least comprises definite value with no pressure, has compression set value, cyclization pressure reduction locking definite value and cyclization angular difference locking definite value.
By the definite value with no pressure in the both end voltage of circuit and cyclization definite value and have compression set value to compare, if the both end voltage of circuit is less than definite value with no pressure, is then general closing operation, does not carry out Loop Closing Operation judgement, undertaken by normal closing operation; If the terminal voltage in circuit both end voltage is less than definite value with no pressure, other end voltage is greater than definite value with no pressure and is less than simultaneously and has compression set value, be then general closing operation, do not carry out Loop Closing Operation judgement, undertaken by normal closing operation.
In addition, by the definite value with no pressure in the both end voltage of circuit and cyclization definite value and have compression set value to compare, if both end voltage is all greater than compression set value, then: the cyclization pressure reduction locking definite value in the voltage difference of line voltage distribution and cyclization definite value is compared, cyclization angular difference locking definite value in the phase angle difference of line voltage distribution and cyclization definite value compares, and judges currently whether to meet Loop Closing Operation condition.This kind of method can accurately according to two factors affected in cyclization impulse current; the i.e. voltage difference of line voltage distribution and phase angle difference; by the impulse current that cyclization produces; be limited in supply line normally to run in limit value, effectively avoid electrical primary device damage and relaying protection action tripping operation to cause large area blackout.
In other embodiments of the present invention, can also comprise the following steps:
After carrying out Loop Closing Operation according to cyclization instruction, to described main website feedback cyclization successful information;
If do not meet cyclization condition, then locking cyclization, and send Loop Closing Operation locking information to described main website, feed back operation information accurately to distribution scheduling, help the further analysis decision of dispatcher.
Existing closed loop network changes the electrical network parameter that power technology mainly uploaded according to distribution terminal by main website and carries out Modeling Calculation analysis, judge whether power distribution network possesses cyclization condition, if meet cyclization condition, then send cyclization instruction to distribution terminal, after distribution terminal receives cyclization instruction, carry out corresponding Loop Closing Operation according to cyclization instruction.But because electrical network parameter real-time change in power distribution network is comparatively large, by the impact of data communication time delay between main website and distribution terminal, when the cyclization order that main website issues arrives distribution terminal, the basic electrical network parameter in power distribution network may change.The embodiment of the present invention provides the closed loop network of the dual judgement of a kind of main website+terminal to change electric scheme, main website is after judging that power distribution network possesses cyclization condition, cyclization instruction is sent to distribution terminal, distribution terminal is after the cyclization instruction receiving main website transmission, also need the real-time parameter obtaining electrical network, electrical network real-time parameter and cyclization definite value are compared, if meet Loop Closing Operation condition just carry out Loop Closing Operation according to described cyclization instruction, the mode of this dual judgement can ensure that the correct of electricity operation is changed in cyclization reliably, prevents the misoperation of cyclization.
See Fig. 2, for two inlet wires, specific implementation of the present invention is described.
Fig. 2 comprises inlet wire 1, inlet wire 2, UL1 are the 1st road primary voltage, UL2 is the 2nd road primary voltage, FD is bus section breaker, DL
1for, DL
2for, la be section breaker A phase current, lb is section breaker B phase current, lc is section breaker C phase current, l1a is the 1st road inlet wire A phase current, l1b is the 1st road inlet wire B phase current, l1c is the 1st road inlet wire C phase current, l2a is the 2nd road inlet wire A phase current, l2b is the 2nd road inlet wire B phase current, l2c is the 2nd road inlet wire C phase current.
(1) the cyclization mode of inlet wire 1 switch:
Situation 1, inlet wire 1 switch is in a point position, and inlet wire 2 switch is in co-bit, and block switch is in co-bit or when having stream:
Receive the cyclization instruction that main website issues, this instruction is the cyclization fill order of inlet wire 1 switch;
Close in the cyclization stand-by period at the hand that can adjust, the electrical network real-time parameter of acquisition and cyclization definite value compare by the institute terminal D TU that stands, judge currently whether meet Loop Closing Operation condition, if met, then carry out the Loop Closing Operation of inlet wire 1 switch according to cyclization instruction, send cyclization successful information to main website, if do not met, after the cyclization stand-by period arrives, locking cyclization, and send cyclization failure information to main website.
(2) the cyclization mode of inlet wire 2 switch:
Situation 2, inlet wire 1 switch is at co-bit, inlet wire 2 switch in a point position, and block switch is in co-bit or when having stream:
Receive the cyclization instruction that main website issues, this instruction is the cyclization fill order of inlet wire 2 switch;
Close in the cyclization stand-by period at the hand that can adjust, the electrical network real-time parameter of acquisition and cyclization definite value compare by the institute terminal D TU that stands, judge currently whether meet Loop Closing Operation condition, if met, then carry out the Loop Closing Operation of inlet wire 2 switch according to cyclization instruction, send cyclization successful information to main website, if do not met, after the cyclization stand-by period arrives, locking cyclization, and send cyclization failure information to main website.
(3) the cyclization mode of block switch:
Situation 3, the switch of inlet wire 1, inlet wire 2 is all dividing a position at co-bit, block switch:
Receive the cyclization instruction that main website issues, this instruction is the cyclization fill order of block switch;
Close in the cyclization stand-by period at the hand that can adjust, the electrical network real-time parameter of acquisition and cyclization definite value compare by the institute terminal D TU that stands, judge currently whether meet Loop Closing Operation condition, if met, then carry out the Loop Closing Operation of block switch according to cyclization instruction, send cyclization successful information to main website, if do not met, after the cyclization stand-by period arrives, locking cyclization, and send cyclization failure information to main website.
It should be noted that, in other embodiments of the present invention, institute's terminal of standing can also carry out discriminatory analysis to block switch after receiving the cyclization instruction that main website issues, if when judging block switch in point position or without stream, directly can carry out Loop Closing Operation according to cyclization instruction, as:
Situation 4, inlet wire 1 switch is when dividing a position, block switch in point position and without stream:
Receive the cyclization instruction that main website issues, this instruction is the cyclization fill order of inlet wire 1 switch;
Inlet wire 1 switch carries out Loop Closing Operation, sends cyclization successful information to main website.
Situation 5, inlet wire 1 switch is when dividing a position, block switch in point position and without stream:
Receive the cyclization instruction that main website issues, this instruction is the cyclization fill order of inlet wire 2 switch;
Inlet wire 2 switch carries out Loop Closing Operation, sends cyclization successful information to main website.
Situation 6, one, the switch of inlet wire 1, inlet wire 2 in a point position, one in co-bit, block switch is in a point position:
Receive the cyclization instruction that main website issues, this instruction is the cyclization fill order of block switch;
Block switch carries out Loop Closing Operation, sends cyclization successful information to main website.
See Fig. 3, the embodiment of the present invention also provides a kind of closed loop network to change electric installation, is applied to the Loop Closing Operation of power distribution network, and device comprises receiving element U100, acquiring unit U110, judging unit U120 and performance element U130:
Receiving element U100, for receiving the cyclization instruction that main website sends, and by cyclization command to performance element U130;
Acquiring unit U110, for obtaining electrical network real-time parameter, and is transferred to judging unit U120 by electrical network real-time parameter;
Judging unit U120, for receiving the electrical network real-time parameter that acquiring unit U110 transmits, and electrical network real-time parameter and cyclization definite value are compared, judge currently whether meet Loop Closing Operation condition, if met, be then transferred to performance element U130 fill order, performance element U130 receives the cyclization instruction that above-mentioned receiving element U100 transmits, and after receiving fill order, carry out Loop Closing Operation according to cyclization instruction.
Further, judging unit comprises:
First comparison module, for by the definite value with no pressure in the both end voltage of circuit and cyclization definite value and have compression set value to compare.
Further, judging unit also comprises the second comparison module:
If both end voltage is all greater than compression set value, then the second comparison module, for the cyclization pressure reduction locking definite value in the voltage difference of line voltage distribution and cyclization definite value being compared, the cyclization angular difference locking definite value in the phase angle difference of line voltage distribution and cyclization definite value compares.
Further, device also comprises the first feedback unit, closed bite ring element and the second feedback unit:
First feedback unit, for feeding back cyclization successful information to main website;
If do not meet cyclization condition, then closed bite ring element, for locking cyclization, the second feedback unit, for sending Loop Closing Operation locking information to main website.
Further, device also comprises collecting unit and transmitting element;
Collecting unit, for gathering cyclization relevant information, cyclization relevant information comprises the position of the switch of inlet wire circuit, three-phase voltage and three-phase current, the pressure reduction of cyclization point both sides voltage and angular difference, and the position of the switch of block switch and three-phase current;
Transmitting element, for sending cyclization relevant information to described main website, described main website is according to the cyclization relevant information above sent and utilize cyclization impulse current analytical technology to make to analyze judgement, and when meeting cyclization requirement, described main website sends described cyclization instruction.
Existing closed loop network changes the electrical network parameter that power technology mainly uploaded according to distribution terminal by main website and carries out Modeling Calculation analysis, judge whether power distribution network possesses cyclization condition, if meet cyclization condition, then send cyclization instruction to distribution terminal, after distribution terminal receives cyclization instruction, carry out corresponding Loop Closing Operation according to cyclization instruction.But because electrical network parameter real-time change in power distribution network is comparatively large, by the impact of data communication time delay between main website and distribution terminal, when the cyclization order that main website issues arrives distribution terminal, the basic electrical network parameter in power distribution network may change.The closed loop network that the embodiment of the present invention provides changes electric installation and adopts the closed loop network of the dual judgement of main website+terminal to change electric scheme, main website is after judging that power distribution network possesses cyclization condition, cyclization instruction is sent to distribution terminal, distribution terminal is after the cyclization instruction receiving main website transmission, also need the real-time parameter obtaining electrical network, electrical network real-time parameter and cyclization definite value are compared, if meet Loop Closing Operation condition just carry out Loop Closing Operation according to described cyclization instruction, the mode of this dual judgement can ensure that the correct of electricity operation is changed in cyclization reliably, prevent the misoperation of cyclization.
The embodiment of the present invention also provides a kind of distribution terminal, and distribution terminal comprises closed loop network and changes electric installation, and closed loop network changes electric installation and comprises receiving element, acquiring unit, judging unit and performance element;
Receiving element, for receiving the cyclization instruction that main website sends;
Acquiring unit, for obtaining electrical network real-time parameter;
Judging unit, for electrical network real-time parameter and cyclization definite value being compared, judge currently whether meet Loop Closing Operation condition, if met, then performance element, for carrying out Loop Closing Operation according to cyclization instruction.
A kind of distribution terminal disclosed in the embodiment of the present invention, comprises closed loop network and changes electric installation, and wherein, this closed loop network changes the closed loop network that Denso is set to as above described in embodiment and changes electric installation.Distribution terminal provided by the invention, owing to adopting above-mentioned closed loop network to change electric installation, has above-mentioned technique effect equally, repeats no more herein.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
Finally, also it should be noted that, in this article, the such as relational terms of first, second grade and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
For convenience of description, various unit is divided into describe respectively with function when describing above device.Certainly, the function of each unit can be realized in same or multiple software and/or hardware when implementing the application.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. closed loop network changes a method for electrically, is applied to the Loop Closing Operation of power distribution network, it is characterized in that, comprising:
Receive the cyclization instruction that main website sends;
Obtain electrical network real-time parameter; Described electrical network real-time parameter at least comprises the both end voltage of circuit, the pressure reduction of line voltage distribution and angular difference;
Described electrical network real-time parameter and cyclization definite value are compared, judge currently whether meet Loop Closing Operation condition, if met, then carry out Loop Closing Operation according to described cyclization instruction, described electrical network real-time parameter and cyclization definite value are compared, comprising:
By the definite value with no pressure in the both end voltage of circuit and described cyclization definite value and have compression set value to compare.
2. method according to claim 1, is characterized in that, also comprises:
If have compression set value described in described both end voltage is all greater than, then:
Cyclization pressure reduction locking definite value in the voltage difference of line voltage distribution and described cyclization definite value compared, the cyclization angular difference locking definite value in the phase angle difference of line voltage distribution and described cyclization definite value compares.
3. method according to claim 1, is characterized in that, also comprises:
To described main website feedback cyclization successful information;
If be not inconsistent cyclization condition, then locking cyclization, and send Loop Closing Operation locking information to described main website.
4. method according to claim 1, is characterized in that, before the cyclization instruction that described reception main website sends, also comprises:
Gather cyclization relevant information, cyclization relevant information comprises the position of the switch of inlet wire circuit, three-phase voltage and three-phase current, the pressure reduction of cyclization point both sides voltage and angular difference, and the position of the switch of block switch and three-phase current;
Send cyclization relevant information to described main website, described main website is according to the cyclization relevant information above sent and utilize cyclization impulse current analytical technology to make to analyze judgement, and when meeting cyclization requirement, described main website sends described cyclization instruction.
5. closed loop network changes an electric installation, is applied to the Loop Closing Operation of power distribution network, it is characterized in that, comprises receiving element, acquiring unit, judging unit and performance element;
Described receiving element, for receiving the cyclization instruction that main website sends;
Described acquiring unit, for obtaining electrical network real-time parameter, described electrical network real-time parameter at least comprises the both end voltage of circuit, the pressure reduction of line voltage distribution and angular difference;
Described judging unit, for described electrical network real-time parameter and cyclization definite value being compared, judges currently whether meet Loop Closing Operation condition, if met, then and described performance element, for carrying out Loop Closing Operation according to described cyclization instruction, described judging unit comprises:
First comparison module, for by the definite value with no pressure in the both end voltage of circuit and described cyclization definite value and have compression set value to compare.
6. device according to claim 5, is characterized in that, described judging unit also comprises the second comparison module:
If have compression set value described in described both end voltage is all greater than, then described second comparison module, for the cyclization pressure reduction locking definite value in the voltage difference of line voltage distribution and described cyclization definite value being compared, the cyclization angular difference locking definite value in the phase angle difference of line voltage distribution and described cyclization definite value compares.
7. device according to claim 5, is characterized in that, also comprises the first feedback unit, closed bite ring element and the second feedback unit:
First feedback unit, for feeding back cyclization successful information to described main website;
If do not meet cyclization condition, then described closed bite ring element, for locking cyclization, described second feedback unit, for sending Loop Closing Operation locking information to described main website.
8. a distribution terminal, described distribution terminal comprises closed loop network and changes electric installation, it is characterized in that,
Described closed loop network changes electric installation and comprises receiving element, acquiring unit, judging unit and performance element;
Described receiving element, for receiving the cyclization instruction that main website sends;
Described acquiring unit, for obtaining electrical network real-time parameter, described electrical network real-time parameter at least comprises the both end voltage of circuit, the pressure reduction of line voltage distribution and angular difference;
Described judging unit, for described electrical network real-time parameter and cyclization definite value being compared, judge currently whether meet Loop Closing Operation condition, if met, then described performance element, for carrying out Loop Closing Operation according to described cyclization instruction.
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| CN201310156849.3A CN103236695B (en) | 2013-04-28 | 2013-04-28 | Power distribution network loop closing current switching method and device, and power distribution terminal |
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| CN104734352B (en) * | 2015-03-10 | 2017-06-20 | 国家电网公司 | A kind of distribution line Loop Closing Operation control method |
| CN105656203B (en) * | 2016-01-29 | 2018-01-12 | 国网山东省电力公司青岛供电公司 | A kind of Loop Closing Operation control method and device |
| CN106655168A (en) * | 2016-12-09 | 2017-05-10 | 国网北京市电力公司 | Method and device for building loop closing model of power distribution network |
| CN106787201A (en) * | 2016-12-30 | 2017-05-31 | 国网天津市电力公司 | A kind of closed loop network method that phase is determined based on remote online |
| CN110994610A (en) * | 2019-12-24 | 2020-04-10 | 国网天津市电力公司 | Monitoring information assistance-based loop closing method and device for power distribution network line |
| CN111585275B (en) * | 2020-05-13 | 2023-08-22 | 国网浙江省电力有限公司绍兴供电公司 | Control method for intelligent ring opening and closing operation |
| CN117439033B (en) * | 2023-12-19 | 2024-05-14 | 成都天合一成科技服务有限公司 | System for preventing loop closing misoperation based on real-time data of transformer substation |
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