CN115642701A - State identification method of relay protection device and related device - Google Patents
State identification method of relay protection device and related device Download PDFInfo
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- CN115642701A CN115642701A CN202211372004.3A CN202211372004A CN115642701A CN 115642701 A CN115642701 A CN 115642701A CN 202211372004 A CN202211372004 A CN 202211372004A CN 115642701 A CN115642701 A CN 115642701A
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Abstract
The application discloses a state identification method of a relay protection device and a related device, wherein the method comprises the following steps: acquiring historical information characteristics of the relay protection device in the running state and the maintenance state respectively, and constructing a running state information characteristic template and a maintenance state information characteristic template, wherein the historical information characteristics comprise: analog quantity voltage current amplitude, a tripping relay position, a closing relay position, each phase tripping outlet pressing plate position and each phase closing outlet pressing plate position; instantiating the relay protection device to be identified based on the operation state information characteristic template and the maintenance state information characteristic template to obtain an information matrix of the relay protection device to be identified; and comparing the real-time operation information of the relay protection device to be identified with the information matrix to obtain a state analysis result of the relay protection device to be identified. The problem of prior art to the relatively low and relatively poor real-time nature of state identification accuracy of relay protection device is solved.
Description
Technical Field
The present disclosure relates to the field of relay protection devices, and in particular, to a method for identifying a state of a relay protection device and a related device.
Background
The relay protection information system enables each professional in relay protection to comprehensively, quickly, accurately and intuitively master the operation condition of the relay protection device. However, with the continuous expansion of the scale of the power grid, the number of the relay protection devices increases day by day, relay protection professional maintainers can regularly overhaul and test the relay protection devices in the transformer substation, and a large amount of interference information is sent to the dispatching center during the test period, and the interference information includes information such as protection action trip information and abnormal alarm.
At present, a relay protection information system master station shields and processes interference information sent by a relay protection device during maintenance through docking with an external system, but in an actual application process, the following difficulties are encountered: 1) The method comprises the following steps that information of the position of a grounding switch in a power grid dispatching and monitoring control system is incompletely acquired, the running state mode scheme of a relay protection device is judged to be incomplete based on the positions of a breaker and the switch, and the condition that primary equipment runs to protect and overhaul cannot be identified; 2) The maintenance relay protection device list of the power grid dispatching production management system is manually set, the lag time is long, meanwhile, the system and the relay protection information system are not in the same network, the data interaction is greatly restricted by network safety management, and the work is difficult to develop. Due to the reasons, errors are easy to occur in state identification of the relay protection device, so that the identification accuracy is low and the real-time performance is poor.
Disclosure of Invention
The application provides a state identification method of a relay protection device and a related device, which are used for solving the technical problems of low state identification accuracy and poor real-time performance of the relay protection device in the prior art.
In view of the above, a first aspect of the present application provides a method for identifying a state of a relay protection device, where the method includes:
acquiring historical information characteristics of the relay protection device in an operating state and a maintenance state respectively, and constructing an operating state information characteristic template and a maintenance state information characteristic template, wherein the historical information characteristics comprise: analog quantity voltage current amplitude, a tripping relay position, a closing relay position, each phase tripping outlet pressing plate position and each phase closing outlet pressing plate position;
instantiating a relay protection device to be identified based on the operation state information characteristic template and the maintenance state information characteristic template to obtain an information matrix of the relay protection device to be identified;
comparing the real-time operation information of the relay protection device to be identified with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information comprises: the input state, the analog sampling value and the outlet hard pressing plate position.
Optionally, the real-time operation information of the relay protection device to be identified is compared with the information matrix to obtain a state analysis result of the relay protection device to be identified, where the real-time operation information includes: the volume of opening state, simulation sampling value and export hard clamp plate position specifically include:
acquiring real-time operation information of the relay protection device to be identified according to a preset period, and/or acquiring the real-time operation information of the relay protection device to be identified when the input variable displacement information or the output pressure plate position displacement information of the relay protection device to be identified is received;
comparing the real-time operation information with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information comprises: the input quantity state, the analog sampling value and the position of the outlet hard pressing plate.
Optionally, the real-time operation information of the relay protection device to be identified is compared with the information matrix to obtain a state analysis result of the relay protection device to be identified, where the real-time operation information includes: the volume state of opening, analog sampling value and export hard clamp plate position later still include:
setting the label type of the real-time running information according to the state analysis result, wherein the label type comprises: running class data and maintenance class data; and shielding the real-time running information of the maintenance data.
Optionally, the real-time operation information of the relay protection device to be identified is compared with the information matrix to obtain a state analysis result of the relay protection device to be identified, and then the method further includes:
and determining whether the state of the relay protection device is changed or not according to the state analysis result, and if so, sending a state change alarm.
A second aspect of the present application provides a state identification system for a relay protection device, the system including:
the construction unit is used for acquiring historical information characteristics of the relay protection device in an operating state and a maintenance state respectively, and constructing an operating state information characteristic template and a maintenance state information characteristic template, wherein the historical information characteristics comprise: analog quantity voltage current amplitude, a tripping relay position, a closing relay position, each phase tripping outlet pressing plate position and each phase closing outlet pressing plate position;
the setting unit is used for instantiating the relay protection device to be identified based on the operation state information characteristic template and the maintenance state information characteristic template to obtain an information matrix of the relay protection device to be identified;
the identification unit is used for comparing the real-time operation information of the relay protection device to be identified with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information comprises: the input quantity state, the analog sampling value and the position of the outlet hard pressing plate.
Optionally, the identification unit is specifically configured to:
acquiring real-time operation information of the relay protection device to be identified according to a preset period, and/or acquiring the real-time operation information of the relay protection device to be identified when the input variable displacement information or the output pressure plate position displacement information of the relay protection device to be identified is received;
comparing the real-time operation information with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information comprises: the input quantity state, the analog sampling value and the position of the outlet hard pressing plate.
Optionally, the method further comprises: a data processing unit;
the data processing unit is configured to set a tag category of the real-time running information according to the state analysis result, where the tag category includes: running class data and maintenance class data; and shielding the real-time running information of the maintenance data.
Optionally, the method further comprises: an alarm unit;
and the alarm unit is used for determining whether the state of the relay protection device changes according to the state analysis result, and if so, sending a state change alarm.
A third aspect of the present application provides a state identification device for a relay protection device, the device including a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the steps of the method for identifying a state of a relay protection device according to the first aspect, according to instructions in the program code.
A fourth aspect of the present application provides a computer-readable storage medium, which is used for storing a program code, where the program code is used for executing the method for identifying the state of the relay protection device according to the first aspect.
According to the technical scheme, the method has the following advantages:
the application provides a state identification method of a relay protection device, which comprises the following steps: acquiring historical information characteristics of the relay protection device in the running state and the maintenance state respectively, and constructing a running state information characteristic template and a maintenance state information characteristic template, wherein the historical information characteristics comprise: analog quantity voltage current amplitude, a tripping relay position, a closing relay position, each phase tripping outlet pressing plate position and each phase closing outlet pressing plate position; instantiating the relay protection device to be identified based on the operation state information characteristic template and the maintenance state information characteristic template to obtain an information matrix of the relay protection device to be identified; comparing the real-time operation information of the relay protection device to be identified with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information comprises: the input state, the analog sampling value and the outlet hard pressing plate position.
Compared with the prior art, the method and the device introduce the information of the hard pressing plate of the relay protection outlet, fully excavate the existing analog sampling and circuit breaker position information of a relay protection information system, independently realize the judgment of the relay protection running state, and improve the accuracy and the real-time performance of the judgment of the relay protection running state; meanwhile, the relay protection information system reduces data interaction with an external system, and greatly reduces the complexity of the system and the cost of a data interface. Therefore, the technical problems that the state identification accuracy of the relay protection device is low and the real-time performance is poor in the prior art are solved.
Drawings
Fig. 1 is a schematic flowchart of an embodiment of a method for identifying a state of a relay protection device in an embodiment of the present application;
fig. 2 is a schematic structural diagram of an embodiment of a state identification system of a relay protection device provided in an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a method for identifying a state of a relay protection device provided in an embodiment of the present application includes:
the following table shows specific information contents related to the state analysis of the relay protection device:
1. when the relay protection device is in an operating state, various information states are as follows:
the knife switch associated with the primary equipment is closed, the corresponding breaker is closed, the trip relay is opened, and the closing relay is closed;
the analog quantity sampling amplitude of each phase of the protection device is about 57V, and the amplitude of each phase of current is not 0;
the protection device starts the failure outlet pressing plate to be put into, and each phase tripping and closing outlet pressing plate and each phase closing outlet pressing plate are put into.
2. Overhauling the relay protection device: the method comprises two conditions of primary equipment or interval power failure maintenance protection equipment inspection and periodic inspection of primary equipment operation and partial protection quit.
1) And (3) checking the protection equipment during primary equipment or interval power failure maintenance:
the knife switch associated with the primary equipment is in an on state, the corresponding breaker state is in an off state, the tripping relay position state is in an on state, and the closing relay position state is in an off state;
the analog quantity sampling of the protection device is zero in each phase voltage and each phase current value, when the protection device is tested, voltage and current input are provided by a relay protection tester in an intermittent mode, and the duration time is short;
the protection device starts the outlet pressing plate of the failure to withdraw, and trips and closes the outlet pressing plate at any position;
2. partial protection and maintenance or defect elimination treatment during primary equipment operation:
the position of a disconnecting link and a breaker which are related to the primary equipment are both closed, the position state of a tripping relay is open, and the position state of a closing relay is closed;
the analog quantity sampling amplitude of each phase voltage and each phase current of the protection device is zero, and when the protection device is tested, voltage and current input are provided by a relay protection tester in an intermittent mode and the duration time is short;
the protection device starts a failure outlet pressure plate, each phase tripping outlet pressure plate and each phase closing outlet pressure plate to exit.
According to the embodiment, under different operation states of the relay protection device, different types of protection devices are designed with standard templates according to current value data of information such as analog quantity voltage and current amplitude, tripping relay position, closing relay position, tripping outlet pressing plate position of each phase, closing outlet pressing plate position of each phase and the like under different operation states, and the standard templates specifically comprise: an operating state information characteristic template and a maintenance state information characteristic template.
102, instantiating a relay protection device to be identified based on the operation state information characteristic template and the maintenance state information characteristic template to obtain an information matrix of the relay protection device to be identified;
in practical application, each protection device is instantiated through the configuration tool according to the information characteristic template obtained in step 101, and an information matrix of the relay protection device to be identified in the operation and maintenance states is obtained.
Specifically, the method comprises the following steps:
1) Acquiring real-time operation information of the relay protection device to be identified according to a preset period, and/or acquiring the real-time operation information of the relay protection device to be identified when the input variable displacement information or the output pressure plate position displacement information of the relay protection device to be identified is received;
2) Comparing the real-time operation information with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information comprises: the input quantity state, the analog sampling value and the position of the outlet hard pressing plate. And further, determining whether the state of the relay protection device is changed or not according to the state analysis result, and if so, giving a state change alarm.
Further, according to the state analysis result, setting a label category of the real-time running information, wherein the label category comprises: running class data and maintenance class data; and the real-time running information of the maintenance data is shielded.
The above description is a method for identifying a state of a relay protection device provided in the embodiment of the present application, and the above description is a system for identifying a state of a relay protection device provided in the embodiment of the present application.
Referring to fig. 2, a state identification system of a relay protection device provided in an embodiment of the present application includes:
the building unit 201 is configured to obtain historical information characteristics of the relay protection device in the operating state and the maintenance state, respectively, and build an operating state information characteristic template and a maintenance state information characteristic template, where the historical information characteristics include: analog quantity voltage current amplitude, a tripping relay position, a closing relay position, each phase tripping outlet pressing plate position and each phase closing outlet pressing plate position;
the setting unit 202 is used for instantiating the relay protection device to be identified based on the operation state information characteristic template and the maintenance state information characteristic template to obtain an information matrix of the relay protection device to be identified;
the identification unit 203 is configured to compare the real-time operation information of the relay protection device to be identified with the information matrix to obtain a state analysis result of the relay protection device to be identified, where the real-time operation information includes: the input quantity state, the analog sampling value and the position of the outlet hard pressing plate.
Further, the embodiment of the present application also provides a state identification device for a relay protection device, where the device includes a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is used for executing the state identification method of the relay protection device according to the instruction in the program code.
Further, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium is used to store a program code, and the program code is used to execute the method for identifying a state of a relay protection device according to the above-mentioned method embodiment.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The terms "first," "second," "third," "fourth," and the like (if any) in the description of the present application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A state identification method of a relay protection device is characterized by comprising the following steps:
acquiring historical information characteristics of the relay protection device in an operating state and a maintenance state respectively, and constructing an operating state information characteristic template and a maintenance state information characteristic template, wherein the historical information characteristics comprise: analog quantity voltage current amplitude, a tripping relay position, a closing relay position, each phase tripping outlet pressing plate position and each phase closing outlet pressing plate position;
instantiating a relay protection device to be identified based on the operation state information characteristic template and the maintenance state information characteristic template to obtain an information matrix of the relay protection device to be identified;
comparing the real-time operation information of the relay protection device to be identified with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information comprises: the input state, the analog sampling value and the outlet hard pressing plate position.
2. The method for identifying the state of the relay protection device according to claim 1, wherein the real-time operation information of the relay protection device to be identified is compared with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information includes: the volume of opening state, simulation sampling value and export hard clamp plate position specifically include:
acquiring real-time operation information of the relay protection device to be identified according to a preset period, and/or acquiring the real-time operation information of the relay protection device to be identified when the input variable displacement information or the output pressure plate position displacement information of the relay protection device to be identified is received;
comparing the real-time operation information with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information comprises: the input quantity state, the analog sampling value and the position of the outlet hard pressing plate.
3. The method for identifying the state of the relay protection device according to claim 1, wherein the real-time operation information of the relay protection device to be identified is compared with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information includes: the volume state of opening, analog sampling value and export hard clamp plate position later still include:
setting the label type of the real-time running information according to the state analysis result, wherein the label type comprises: operation type data and maintenance type data; and shielding the real-time running information of the maintenance data.
4. The method for identifying the state of the relay protection device according to claim 1, wherein the step of comparing the real-time operation information of the relay protection device to be identified with the information matrix to obtain a state analysis result of the relay protection device to be identified further comprises the steps of:
and determining whether the state of the relay protection device is changed or not according to the state analysis result, and if so, sending a state change alarm.
5. A state recognition system of a relay protection device, comprising:
the construction unit is used for acquiring historical information characteristics of the relay protection device in an operating state and a maintenance state respectively, and constructing an operating state information characteristic template and a maintenance state information characteristic template, wherein the historical information characteristics comprise: analog quantity voltage current amplitude, a tripping relay position, a closing relay position, each phase tripping outlet pressing plate position and each phase closing outlet pressing plate position;
the setting unit is used for instantiating the relay protection device to be identified based on the operation state information characteristic template and the maintenance state information characteristic template to obtain an information matrix of the relay protection device to be identified;
the identification unit is used for comparing the real-time operation information of the relay protection device to be identified with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information comprises: the input quantity state, the analog sampling value and the position of the outlet hard pressing plate.
6. The relay protection device state identification system according to claim 5, wherein the identification unit is specifically configured to:
acquiring real-time operation information of the relay protection device to be identified according to a preset period, and/or acquiring the real-time operation information of the relay protection device to be identified when the input variable displacement information or the output pressure plate position displacement information of the relay protection device to be identified is received;
comparing the real-time operation information with the information matrix to obtain a state analysis result of the relay protection device to be identified, wherein the real-time operation information comprises: the input quantity state, the analog sampling value and the position of the outlet hard pressing plate.
7. The relay protection device state recognition system according to claim 5, further comprising: a data processing unit;
the data processing unit is configured to set a tag category of the real-time running information according to the state analysis result, where the tag category includes: operation type data and maintenance type data; and shielding the real-time running information of the maintenance data.
8. The relay protection device state identification system according to claim 5, further comprising: an alarm unit;
and the alarm unit is used for determining whether the state of the relay protection device changes according to the state analysis result, and if so, sending a state change alarm.
9. A state identification apparatus for a relay protection device, the apparatus comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is used for executing the state identification method of the relay protection device according to any one of claims 1-4 according to instructions in the program code.
10. A computer-readable storage medium for storing a program code for executing the method for identifying a status of a relay protection device according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211372004.3A CN115642701A (en) | 2022-11-03 | 2022-11-03 | State identification method of relay protection device and related device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211372004.3A CN115642701A (en) | 2022-11-03 | 2022-11-03 | State identification method of relay protection device and related device |
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| CN115642701A true CN115642701A (en) | 2023-01-24 |
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| CN202211372004.3A Pending CN115642701A (en) | 2022-11-03 | 2022-11-03 | State identification method of relay protection device and related device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116526415A (en) * | 2023-06-26 | 2023-08-01 | 国网山东省电力公司禹城市供电公司 | Power equipment protection device and control method thereof |
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2022
- 2022-11-03 CN CN202211372004.3A patent/CN115642701A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116526415A (en) * | 2023-06-26 | 2023-08-01 | 国网山东省电力公司禹城市供电公司 | Power equipment protection device and control method thereof |
| CN116526415B (en) * | 2023-06-26 | 2023-09-19 | 国网山东省电力公司禹城市供电公司 | Power equipment protection device and control method thereof |
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