CN106680634B - A kind of intelligent early-warning method of intelligent substation relay protection safety measure - Google Patents

A kind of intelligent early-warning method of intelligent substation relay protection safety measure Download PDF

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Publication number
CN106680634B
CN106680634B CN201611270380.6A CN201611270380A CN106680634B CN 106680634 B CN106680634 B CN 106680634B CN 201611270380 A CN201611270380 A CN 201611270380A CN 106680634 B CN106680634 B CN 106680634B
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China
Prior art keywords
pressing plate
state
primary equipment
participation
intelligent
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CN201611270380.6A
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Chinese (zh)
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CN106680634A (en
Inventor
王坚俊
盛海华
唐剑
侯伟宏
罗少杰
吴靖
徐丹露
杨经超
吴佳毅
孙弘毅
赵融融
王源涛
张辉
高标
王艳
林亮
章洁菁
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国家电网公司
国网浙江省电力公司
国网浙江省电力公司杭州供电公司
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Priority to CN201611270380.6A priority Critical patent/CN106680634B/en
Publication of CN106680634A publication Critical patent/CN106680634A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Abstract

The invention discloses a kind of intelligent early-warning methods of intelligent substation relay protection safety measure; it include: the state for obtaining primary equipment corresponding to the type of each primary equipment; and in the state of each primary equipment, the participation state of primary equipment and the participation state of secondary device pressing plate;Establish the participation state about primary equipment, the logic rules with the participation state of secondary device pressing plate;Acquire the participation state of the state of target primary equipment and the participation state of target primary equipment and target secondary device pressing plate corresponding with target primary equipment;Whether the participation state of the participation state and target secondary device pressing plate that judge target primary equipment meets logic rules;If it is not, then the first alarm prompt of output.By the above method, the real time monitoring to primary equipment and secondary device pressing plate may be implemented, and can alert in time when the state of secondary device pressing plate does not meet logic rules, to improve the safety and reliability of primary equipment.

Description

A kind of intelligent early-warning method of intelligent substation relay protection safety measure
Technical field
The present invention relates to technical field of electric power, more particularly to a kind of intelligence of intelligent substation relay protection safety measure Method for early warning.
Background technique
Safety measure is primarily referred to as in power transformation operation and service work guaranteeing life, power grid and equipment safety, will Awaiting Overhaul equipment and running equipment carry out the measure of security isolation.For second protection equipment, safety measure emphasis is main Including analog input circuit and breaker tripping and closing, it is remotely controlled, opens failure etc. and output circuit.For conventional substation, circuit is outputed Safety measure implement to always comply with the basic concept of " obvious electrical break point ", that is, think in breaker tripping and closing, be remotely controlled, open failure etc. and open Circuit must seal in hard pressing plate respectively out.Therefore, in specific implementation, route protection jumps control box, route protection start failure protection And bus differential protection jumps control box and is provided with hard pressing plate.In the work of actual operating maintenance, service personnel protects in route of backing off After protecting start failure protection pressing plate, protection exit pressing plate, it is ensured that will not accidentally be exported in the maintenance to route protection.
With intelligentized rapid development, on the basis of conventional substation, there is intelligent substation, intelligent substation The most crucial technological innovation of technology is to replace traditional secondary wiring to transmit digital and analog signaling using industrial Ethernet technology. Original mutual decoupling, the secondary connection for having elephant will be replaced by the network data flow for being mutually highly coupled, being abstracted.With conventional power transformation Station is compared, and intelligent substation generallys use GOOSE at present and sends soft pressing plate, receives soft pressing plate and overhaul the novel isolation skills such as pressing plate Art.In order to guarantee the safe operation of power grid, the state of second protection equipment pressing plate will be consistent with the state of primary equipment, but It is, compared with traditional substation is based on the safety measure of " obvious electrical cut-off point ", intelligent substation GOOSE soft pressing plate and maintenance There is the problems such as not intuitive, leakiness throwing is moved back in pressing plate quarantine measures.In addition, intelligent substation generallys use protective device, intelligence eventually Local mounted mode is held, when maintenance, operations staff carry out safety measure confirmation, the problem of there is " multi-point and wide-ranging ".
It can be seen that how quickly, easily determining the state of current secondary equipment pressing plate during operation of power networks Whether be consistent with the state of primary equipment with improve the safety and reliability of primary equipment be those skilled in the art urgently It solves the problems, such as.
Summary of the invention
The object of the present invention is to provide a kind of intelligent early-warning methods of intelligent substation relay protection safety measure, are used for During operation of power networks, quickly, easily determine current secondary equipment pressing plate state whether the state phase with primary equipment Meet to improve the safety and reliability of primary equipment.
In order to solve the above technical problems, the present invention provides a kind of intelligent early-warning of intelligent substation relay protection safety measure Method, comprising:
Obtain the state of primary equipment corresponding to the type of each primary equipment, and the state in each primary equipment Under, the participation state of primary equipment and the participation state of secondary device pressing plate;
Establish the participation state about the primary equipment, the logic rule with the participation state of the secondary device pressing plate Then;
Acquire the state and the participation state of the target primary equipment and primary with the target of target primary equipment The participation state of the corresponding target secondary device pressing plate of equipment;
According to the type of the target primary equipment, the participation state and the target two of the target primary equipment are judged Whether the participation state of secondary device pressing plate meets the logic rules;
If it is not, then the first alarm prompt of output.
Preferably, the type of the primary equipment includes line segregation, main transformer interval, bus interval, mother interval.
Preferably, the state of the primary equipment includes operating status, hot stand-by duty, cold standby state and maintenance shape State.
Preferably, the participation state of the primary equipment includes participating in object and participation value, the secondary device pressing plate Participation state include participating in object and participation value.
Preferably, when the type of the primary equipment is line segregation, the participation state of the primary equipment is corresponding Participating in object includes switch, switch bus side tool lock, switching circuit side tool lock, switch bus side grounding switch, switching line trackside Grounding switch, line-to-ground disconnecting link;
The corresponding participation object of participation state of the corresponding secondary device pressing plate includes the soft pressure of route protection tripping Plate, line protection reclosure soft pressing plate, route protection start failure protection soft pressing plate, bus differential protection start failure protection receive soft pressing plate, mother Poor trip protection soft pressing plate, bus differential protection SV receive soft pressing plate, intelligent terminal outlet hard pressing plate, route protection and overhaul pressing plate, intelligence It can terminal maintenance pressing plate, combining unit maintenance pressing plate.
Preferably, when the type of the primary equipment is mother interval, the participation state of the primary equipment is corresponding Participating in object includes switch, switch positive pole side tool lock, the secondary female side tool lock of switch, switch positive pole side grounding switch, the secondary female side of switch Grounding switch;
The corresponding participation object of participation state of the corresponding secondary device pressing plate includes the soft pressure of mother trip protection The chief and vice mother stock column soft pressing plate of plate, bus differential protection, bus differential protection tripping soft pressing plate, bus differential protection SV receive soft pressing plate, intelligent terminal It exports hard pressing plate, mother protection maintenance pressing plate, intelligent terminal maintenance pressing plate, combining unit and overhauls pressing plate.
Preferably, when comprising two sets of secondary devices, further includes:
According to the state of the secondary device, the sub- logic rule of the participation state about the secondary device pressing plate are established Then;
Judge whether the participation state of the target secondary device pressing plate meets the sub- logic rules;
If it is not, then the second alarm prompt of output.
Preferably, the state of the secondary device includes operating status, dead status, signal condition.
It preferably, further include that the logic rules and judging result or the logic sub-rule are shown according to idsplay order And judging result.
The intelligent early-warning method of intelligent substation relay protection safety measure provided by the present invention, comprising: obtain each one The state of primary equipment corresponding to the type of secondary device, and in the state of each primary equipment, the ginseng of primary equipment With the participation state of state and secondary device pressing plate;Establish the participation state about the primary equipment and the secondary device The logic rules of the participation state of pressing plate;Acquire the state of target primary equipment and the participation shape of the target primary equipment The participation state of state and target secondary device pressing plate corresponding with the target primary equipment;According to the target primary equipment Whether the participation state of type, the participation state for judging the target primary equipment and the target secondary device pressing plate meets institute State logic rules;If it is not, then the first alarm prompt of output.It can be seen that may be implemented by the above method to primary The real time monitoring of equipment and secondary device pressing plate, and can be timely when the state of secondary device pressing plate does not meet logic rules Alarm, to improve the safety and reliability of primary equipment.
Detailed description of the invention
In order to illustrate the embodiments of the present invention more clearly, attached drawing needed in the embodiment will be done simply below It introduces, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill people For member, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of intelligent early-warning method of intelligent substation relay protection safety measure provided in an embodiment of the present invention Flow chart;
Fig. 2 is that a kind of intelligent early-warning of intelligent substation relay protection safety measure provided in an embodiment of the present invention shows boundary Face figure;
Fig. 3 is that the intelligent early-warning of another intelligent substation relay protection safety measure provided in an embodiment of the present invention is shown Surface chart;
Fig. 4 is that the intelligent early-warning of another intelligent substation relay protection safety measure provided in an embodiment of the present invention is shown Surface chart.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole embodiments.Based on this Embodiment in invention, those of ordinary skill in the art are without making creative work, obtained every other Embodiment belongs to the scope of the present invention.
Core of the invention is to provide a kind of intelligent early-warning method of intelligent substation relay protection safety measure, is used for During operation of power networks, quickly, easily determine current secondary equipment pressing plate state whether the state phase with primary equipment Meet to improve the safety and reliability of primary equipment.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description The present invention is described in further detail.
It should be noted that the technical solution of this paper is based on realizing on IEC61850 model.
Fig. 1 is a kind of intelligent early-warning method of intelligent substation relay protection safety measure provided in an embodiment of the present invention Flow chart.As shown in Figure 1, the intelligent early-warning method of intelligent substation relay protection safety measure includes:
S10: the state of primary equipment corresponding to the type of each primary equipment, and the state in each primary equipment are obtained Under, the participation state of primary equipment and the participation state of secondary device pressing plate.
It is understood that primary equipment state and secondary device pressing plate participation state can by MMS and GOOSE is obtained.MMS is a kind of application layer protocol, realize between the equipment for coming from different manufacturers have interoperability, make be System is integrated to become simple, conveniently.Communication protocol between the power control centers such as EMS and SCADA uses object-oriented modeling skill Art, bottom map directly on MMS.IEC61850 as IECTC57 work out about electric substation automation system computer The standard of communication network and system, using new technologies and methods such as layering, object-oriented modelings, bottom also maps directly to MMS On.GOOSE is a kind of general object-oriented transformer substation case abstract model that IEC61850 standard defines, and is provided The mechanism that (such as order, alert) quickly transmits, can be used for tripping and failure wave-recording starting etc..
In specific implementation, the type of primary equipment includes line segregation, main transformer interval, bus interval, mother interval.It can With understanding, above-mentioned 4 seed type is several concrete types, in other embodiments can also include other types.In addition, If encountering new type, the addition that can be adapted, this embodiment is not repeated.
In the present embodiment, the state of primary equipment refers to which type of operating condition primary equipment is in, and primary The participation state of equipment refers under such operating condition have which type of primary equipment to participate in;Secondary device pressure The participation state of plate refers under the operating condition of primary equipment, corresponding with the participation state of primary equipment that has The secondary device pressing plate of sample participates in, and specific example will be described in hereinafter.
Preferably embodiment, the state of primary equipment include operating status, hot stand-by duty, cold standby state and Inspecting state.It should be noted that under every kind of state, the participation state of primary equipment is different, in detail in above-mentioned 4 in state Literary example is seen below, this embodiment is not repeated.
Preferably embodiment, the participation state of primary equipment include participating in object and participation value, secondary device The participation state of pressing plate includes participating in object and participation value.
S11: the participation state about primary equipment, the logic rules with the participation state of secondary device pressing plate are established.
In this step, be the participation state of the participation state of primary equipment and secondary device pressing plate is compareed, thus Establish logic rules between the two.In specific implementation, logic rules can be stored in the database, when needing to check, It calls directly.It is understood that this logic rules is not one changeless, if there is new primary equipment It is added or the addition of secondary device pressing plate, the then increase or update being adapted to logic rules, the present embodiment is no longer superfluous It states.In addition, this logic rules can be according to IEC61850 model as reference frame, in conjunction with the work of maintenance work personnel Experience, and set according to the practical operation situation of power grid.
S12: acquisition target primary equipment state and target primary equipment participation state and with target primary equipment The participation state of corresponding target secondary device pressing plate.
In the present embodiment, target primary equipment and target secondary device be in order to the primary equipment in above-mentioned logic rules It is distinguished with secondary device, target primary equipment and target secondary device refer to the primary equipment currently monitored And secondary device.
S13: according to the type of target primary equipment, judge the participation state and target secondary device pressure of target primary equipment Whether the participation state of plate meets logic rules, if it is not, then entering step S14.
Due to the type for the various primary equipments for including in logic rules, under the type of every kind of primary equipment, by containing Therefore the contrast relationship of the participation state of the participation state and secondary device pressing plate of primary equipment is once set when collecting target After standby state, according to the type of target primary equipment, find under this type, the participation state and secondary device of primary equipment The contrast relationship of the participation state of pressing plate, to judge that the participation state of current collected target primary equipment and target are secondary Whether the participation state of equipment pressing plate meets above-mentioned contrast relationship, i.e., whether meets logic rules.It is understood that if one It causes, then illustrates that the participation state of target secondary device pressing plate meets the participation state of target primary equipment;If it is inconsistent, saying The participation state of improving eyesight mark secondary device pressing plate does not meet the participation state of target primary equipment.
S14: the first alarm prompt of output.
Here there are many kinds of the modes of the first alarm prompt, such as is shown either by way of monitoring interface The form of alarm indicator, the present embodiment are not construed as limiting the specific implementation of the first alarm prompt.
The intelligent early-warning method of intelligent substation relay protection safety measure provided in this embodiment, comprising: obtain each one The state of primary equipment corresponding to the type of secondary device, and in the state of each primary equipment, the ginseng of primary equipment With the participation state of state and secondary device pressing plate;Establish the participation state about the primary equipment and the secondary device The logic rules of the participation state of pressing plate;Acquire the state of target primary equipment and the participation shape of the target primary equipment The participation state of state and target secondary device pressing plate corresponding with the target primary equipment;According to the target primary equipment Whether the participation state of type, the participation state for judging the target primary equipment and the target secondary device pressing plate meets institute State logic rules;If it is not, then the first alarm prompt of output.It can be seen that may be implemented by the above method to primary The real time monitoring of equipment and secondary device pressing plate, and can be timely when the state of secondary device pressing plate does not meet logic rules Alarm, to improve the safety and reliability of primary equipment.
Preferably embodiment, when the type of primary equipment is line segregation, the participation state pair of primary equipment The participation object answered includes switch, switch bus side tool lock, switching circuit side tool lock, switch bus side grounding switch, switching line Trackside grounding switch, line-to-ground disconnecting link;
The corresponding participation object of participation state of the corresponding secondary device pressing plate includes the soft pressure of route protection tripping Plate, line protection reclosure soft pressing plate, route protection start failure protection soft pressing plate, bus differential protection start failure protection receive soft pressing plate, mother Poor trip protection soft pressing plate, bus differential protection SV receive soft pressing plate, intelligent terminal outlet hard pressing plate, route protection and overhaul pressing plate, intelligence It can terminal maintenance pressing plate, combining unit maintenance pressing plate.
Table 1 is that the type of primary equipment is the corresponding part logic rules of line segregation
Preferably embodiment, when the type of primary equipment is mother interval, the participation state pair of primary equipment The participation object answered includes switch, switch positive pole side tool lock, switchs secondary female side tool lock, switch positive pole side grounding switch, switch pair Female side grounding switch;
The corresponding participation object of participation state of the corresponding secondary device pressing plate includes the soft pressure of mother trip protection The chief and vice mother stock column soft pressing plate of plate, bus differential protection, bus differential protection tripping soft pressing plate, bus differential protection SV receive soft pressing plate, intelligent terminal It exports hard pressing plate, mother protection maintenance pressing plate, intelligent terminal maintenance pressing plate, combining unit and overhauls pressing plate.
Table 2 is that the type of primary equipment is the corresponding part logic rules in mother interval
For above-described embodiment, relevant programming can be carried out, in the above-mentioned realization of monitor supervision platform to intelligent substation The intelligent early-warning method of relay protection safety measure.The interface of early warning will be hereinafter described in detail, so as to this field skill The more clear implementation process of the invention of art personnel.
Fig. 2 is that a kind of intelligent early-warning of intelligent substation relay protection safety measure provided in an embodiment of the present invention shows boundary Face figure.As shown in Fig. 2, two different display contents can be switched on this display interface, as shown in Fig. 2, on display circle On face, there are two button, respectively one or two times corresponding early warning buttons and secondary device pressing plate early warning, can according to the demand of display, It is shown on two kinds of interfaces, the current display interface in Fig. 2 is the interface of one or two corresponding early warning.There is one on the display interface Table, table have two columns, and the first column is the state of primary equipment, and the second column is the participation state of secondary device pressing plate.Table is left There are corresponding circuit diagram, the route where corresponding primary equipment, wherein the state of switch S needs real-time update in side.In addition if If being hard pressing plate, then artificial setting state is needed, the participation value of hard pressing plate can be set by way of double-click in the figure, It can be seen from the figure that there are two types of the numbers 0 in the form of expression, with Tables 1 and 2 above in figure for the participation value of hard pressing plate It is corresponding with 1.In addition, mistake occurs in order to intuitively be seen to be which pressing plate state, then it can be by the color of the display area Deepen, in Fig. 2 be can only the status error of terminal trip pressing plate cross, Fig. 2 are therefore shown in early warning display field In, the color in one column of cold standby state deeply once will illustrate that currently acquiring corresponding is one relative to other several states What secondary device carried out under cold standby state.
Fig. 3 is that the intelligent early-warning of another intelligent substation relay protection safety measure provided in an embodiment of the present invention is shown Surface chart.Fig. 3 is similar with Fig. 2, and only the non-inspecting state of state of primary equipment is shown in Fig. 3, and the explanation of Fig. 3 is asked Referring to fig. 2.In Fig. 3, shown in early warning display field to hook, show that the state of current secondary equipment pressing plate is to meet logic rule Then.
In specific implementation, in order to guarantee the safety and reliability of primary equipment, two sets of secondary devices are usually set, then The corresponding state for just needing to monitor two sets of secondary device pressing plates.When comprising two sets of secondary devices, further includes:
According to the state of secondary device, the sub- logic rules of the participation state about secondary device pressing plate are established;
Judge whether the participation state of target secondary device pressing plate meets sub- logic rules;
If it is not, then the second alarm prompt of output.
It as shown in Figures 2 and 3, all include the state (A set and B set) of two sets of secondary device pressing plates.Under normal circumstances, A set and B set should be identical, it is, however, possible to wherein a set of failure, therefore, we pre-establish secondary set The sub- logic rules of the participation state of standby pressing plate, this is only related with the participation state of secondary device pressing plate from logic rules, When the participation state of current secondary equipment pressing plate is not met from logic rules, then the second alarm prompt is exported.
Fig. 4 is that the intelligent early-warning of another intelligent substation relay protection safety measure provided in an embodiment of the present invention is shown Surface chart.Fig. 4 is another display mode of display interface, as shown in figure 4, containing only secondary set under the display interface The state of standby pressing plate.If there is two sets of secondary devices, then the Show Button of A set and B set can be clicked on, is switched over, Fig. 4 It is that A set is shown, if only a set of secondary device, the Show Button of B set can be made the display mode of virtualization.
Preferably embodiment further includes according to idsplay order display logic rule and judging result or logic Rule and judging result.
For Fig. 2 or Fig. 4 or Fig. 3 or Fig. 4, which interface can be shown according to idsplay order.
Preferably embodiment, the state of secondary device include operating status, dead status, signal condition.
It is understood that above-mentioned three kinds of states are specific several types, do not represent and there was only this seed type, it can With according to actual needs, flexibly editor and addition, this embodiment is not repeated.
The intelligent early-warning method of intelligent substation relay protection safety measure provided by the present invention has been carried out in detail above It is thin to introduce.Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration ?.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, also Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection scope of the claims in the present invention It is interior.

Claims (8)

1. a kind of intelligent early-warning method of intelligent substation relay protection safety measure characterized by comprising
The state of primary equipment corresponding to the type of each primary equipment is obtained, and in the state of each primary equipment, The participation state of primary equipment and the participation state of secondary device pressing plate;
Establish the participation state about the primary equipment, the logic rules with the participation state of the secondary device pressing plate;
Acquire target primary equipment state and the target primary equipment participation state and with the target primary equipment The participation state of corresponding target secondary device pressing plate;
According to the type of the target primary equipment, judges the participation state of the target primary equipment and the target is secondary sets Whether the participation state of standby pressing plate meets the logic rules;
If it is not, then the first alarm prompt of output;
Wherein, the participation state of the primary equipment includes participating in object and participation value, the participation of the secondary device pressing plate State includes participating in object and participation value.
2. the intelligent early-warning method of intelligent substation relay protection safety measure according to claim 1, which is characterized in that The type of the primary equipment includes line segregation, main transformer interval, bus interval, mother interval.
3. the intelligent early-warning method of intelligent substation relay protection safety measure according to claim 1, which is characterized in that The state of the primary equipment includes operating status, hot stand-by duty, cold standby state and inspecting state.
4. the intelligent early-warning method of intelligent substation relay protection safety measure according to claim 1, which is characterized in that When the type of the primary equipment is line segregation, the corresponding participation object of the participation state of the primary equipment includes opening Pass, switch bus side tool lock, switching circuit side tool lock, switch bus side grounding switch, switching circuit side grounding switch, route connect Ground disconnecting link;
The corresponding participation object of participation state of the corresponding secondary device pressing plate includes route protection tripping soft pressing plate, line Reclosing soft pressing plate, route protection start failure protection soft pressing plate, bus differential protection start failure protection is protected to receive soft pressing plate, bus differential protection in road Tripping, soft pressing plate, bus differential protection SV receive soft pressing plate, intelligent terminal exports hard pressing plate, route protection overhauls pressing plate, intelligent terminal Overhaul pressing plate, combining unit overhauls pressing plate.
5. the intelligent early-warning method of intelligent substation relay protection safety measure according to claim 1, which is characterized in that When the type of the primary equipment is mother interval, the corresponding participation object of the participation state of the primary equipment includes opening It closes, switch positive pole side tool lock, the secondary female side tool lock of switch, switch positive pole side grounding switch, the secondary female side grounding switch of switch;
The corresponding participation object of participation state of the corresponding secondary device pressing plate includes mother trip protection soft pressing plate, mother Difference protects chief and vice mother stock column soft pressing plate, bus differential protection tripping soft pressing plate, bus differential protection SV reception soft pressing plate, intelligent terminal outlet hard Pressing plate, mother protection maintenance pressing plate, intelligent terminal maintenance pressing plate, combining unit overhaul pressing plate.
6. the intelligent early-warning method of intelligent substation relay protection safety measure according to claim 1, which is characterized in that When comprising two sets of secondary devices, further includes:
According to the state of the secondary device, the sub- logic rules of the participation state about the secondary device pressing plate are established;
Judge whether the participation state of the target secondary device pressing plate meets the sub- logic rules;
If it is not, then the second alarm prompt of output.
7. the intelligent early-warning method of intelligent substation relay protection safety measure according to claim 6, which is characterized in that The state of the secondary device includes operating status, dead status, signal condition.
8. the intelligent early-warning method of intelligent substation relay protection safety measure according to claim 6, which is characterized in that It further include that the logic rules and judging result or the logic sub-rule and judging result are shown according to idsplay order.
CN201611270380.6A 2016-12-30 2016-12-30 A kind of intelligent early-warning method of intelligent substation relay protection safety measure CN106680634B (en)

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CN108448539A (en) * 2018-01-17 2018-08-24 许继电气股份有限公司 A kind of active anti-misoperation method of intelligent substation relay protection
CN108471164B (en) * 2018-04-17 2021-02-12 国网河南省电力公司电力科学研究院 Intelligent detection and alarm method and device for pressing plate of transformer protection device
CN108828344B (en) * 2018-04-17 2021-01-29 国网河南省电力公司电力科学研究院 Pressing plate detection warning method and device for transformer substation line protection device
CN110247323A (en) * 2019-04-23 2019-09-17 国网浙江省电力有限公司绍兴供电公司 A kind of one secondary device state of intelligent substation corresponds to judgment method

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