CN108897563B - Point table conversion method in relay protection device - Google Patents
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Abstract
The invention discloses a point table conversion method in a relay protection device, which comprises the steps of comparing the difference of each corresponding point of a point table in a new relay protection device with the difference of each corresponding point of the point table in the old relay protection device, and grouping the point tables in the new relay protection device according to a certain rule according to the difference; establishing corresponding mapping logics for the points of each group according to different groups of the points, and storing the mapping logics in a relay protection device in the form of a resource configuration file; the HMI program analyzes the resource configuration file, and the new device point list and the real-time state of the new device are respectively converted into an old device point list and an old device real-time state after being analyzed; and the converted point list is normally uploaded to a background or telemechanical. By adopting the method for converting the point table in the relay protection device, the compatibility of a new generation of relay protection device can be improved, the direct replacement of the relay protection device of the transformer substation is realized, and the problems that the background and the telecontrol need to be updated simultaneously when the relay protection device is updated and replaced are avoided, so that the investment cost for updating and replacing the relay protection device of the transformer substation is reduced.
Description
Technical Field
The invention belongs to the technical field of power system relay protection, and particularly relates to a point meter conversion method in a relay protection device.
Background
As an important guarantee for stable and reliable operation of a power system, a relay protection device has existed for decades along with the operation of the power system. Each batch of relay protection devices has a certain reliable operation life, usually 15 to 20 years. With the development of power systems, relay protection devices reaching or approaching the operating life need to be updated every time, and the compatibility problem between new and old relay protection devices is involved in the process of batch replacement.
In recent years, relay protection devices have been developed rapidly and function perfected, and more differences are generated on the basis of early versions. When the relay protection devices of the transformer substation are replaced in batches, an important problem to be faced is that the new relay protection devices are incompatible with the original background and the original telecontrol terminal.
The method for dealing with incompatibility of a new version relay protection device and an original background and telecontrol at present comprises the following steps:
(1) degrading the program version of the new relay protection device to the version of the old relay protection device to be replaced so as to solve the compatibility problem; the method can meet the short-time requirement of the field to a certain extent, but cannot exert the advantages of a new version device, neglects a plurality of hidden problems solved in the upgrading and perfecting process of a new version program, and thus has a certain hidden danger.
(2) And synchronously upgrading the background and the telecontrol program in the station in the process of replacing the relay protection device. The method is only suitable for newly built or completely transformed substations, but also relates to the problem of investment cost of synchronous upgrading; for the substation which is built in an expansion way or only involves partial relay protection device replacement, the compatibility problem cannot be completely solved by synchronously upgrading the background and the telecontrol version.
Disclosure of Invention
The purpose is as follows: in order to overcome the defects in the prior art, the invention provides a point table conversion method in a relay protection device, which is used for realizing perfect compatibility with the original background and telecontrol when a substation carries out the update of the relay protection device.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method for switching a point table in a relay protection device is characterized by comprising the following steps:
comparison and grouping of points in the point table: the point table comprises a plurality of points, corresponding points of the point table in the new relay protection device and the old relay protection device are respectively compared, and the points of the point table in the new relay protection device are grouped according to a preset rule according to the difference of the corresponding points of the point table in the new relay protection device and the old relay protection device;
determining mapping logic: establishing corresponding mapping logics for the points of each group according to different groups of the points, and storing the mapping logics in a relay protection device in the form of a resource configuration file;
analyzing the configuration file: and analyzing the resource configuration file by the HMI program, and converting the point table configuration of the new relay protection device and the real-time state of the new relay protection device into the point table configuration of the old relay protection device and the real-time state of the old relay protection device respectively after analyzing.
Further, the method also comprises the following steps: and (4) uploading the converted points:
and the converted point list configuration of the old relay protection device is uploaded to the background or telemechanical mode in a calling mode, and the real-time state of the converted old relay protection device is uploaded to the background or telemechanical mode in a sudden change or calling mode.
As a preferable scheme, the method for converting the point table in the relay protection device is characterized in that: grouping points in the new relay protection device according to the difference of each point in the point table in the new relay protection device and the old relay protection device; grouping points in the point table comprises none-to-one, one-to-none, one-to-one, one-to-many and many-to-one;
the first group, the none-to-one is points which are not in the old relay protection device point table and are newly added in the new relay protection device point table;
the second group, the pair of none refers to the point which is deleted in the point table of the old relay protection device and the point table of the new relay protection device;
a third group, wherein the one-to-one is points in the point tables of the new relay protection device and the old relay protection device;
a fourth group, wherein the one-to-many mode is that one point in the old relay protection device point table is split into a plurality of points in the new relay protection device point table;
and in the fifth group, a plurality of points in the many-to-one finger old relay protection device point table are combined into one point in the new relay protection device point table.
As a preferable scheme, the method for converting the point table in the relay protection device is characterized in that: the step of establishing corresponding mapping logic for the points of each group according to the different groups of the points specifically includes:
the points which belong to the groups are non-to-one and non-to-one, and do not need to be mapped, namely no special mapping logic exists;
for the points grouped into one-to-one, the mapping logic is the one-to-one mapping of the point numbers;
for the point grouped into one-to-many, the mapping logic is that the point number of 'multi-side' is taken or mapped to the point number of 'one side';
for the point grouped into many-to-one, the mapping logic is that the point number of one side is mapped to a plurality of point numbers of multiple sides at the same time.
As a preferable scheme, the method for converting the point table in the relay protection device is characterized in that: and storing the mapping logic in a resource configuration file form, wherein the resource configuration file is compiled by a protection program developer according to an agreed format and is stored in the relay protection device.
Further, the agreed format written by the resource configuration file includes a type name, a signal name, an item number to which the resource configuration file belongs, and a packet number to which the resource configuration file belongs.
As a preferable scheme, the method for converting the point table in the relay protection device is characterized in that: the resource configuration file is analyzed by the HMI program according to an agreed format, and the point table configuration and the real-time state after analysis can be directly uploaded to a background or telemechanical state. The HMI program analyzes the resource configuration file, and the operation of the original protection program and the CPU bottom layer program is not influenced.
As a preferable scheme, the method for converting the point table in the relay protection device is characterized in that: and the real-time state of the new relay protection device is updated after the difference is judged through sudden displacement or a circulating task.
Has the advantages that: the method for switching the point table in the relay protection device provided by the invention can effectively improve the compatibility of a new generation of relay protection device, realize the direct replacement of the relay protection device of the transformer substation, and avoid the problem that the original backstage and telecontrol software on the site are incompatible when the relay protection device is upgraded and replaced, so that the backstage and telecontrol software on the site need to be updated simultaneously, thereby reducing the investment cost for updating the relay protection device of the transformer substation.
Drawings
FIG. 1 is a schematic diagram of a method of the present invention;
FIG. 2 is a diagram of grouping point tables and resource profiles according to the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to fig. 2, the present invention provides a method for switching a point table in a relay protection device, which specifically includes the following steps:
comparison and grouping of points in the point table: comparing the difference of the corresponding points in the point tables of the new relay protection device and the old relay protection device, and grouping the points in the point table of the new relay protection device according to the difference of each point in the new relay protection device and the old relay protection device, as shown in fig. 2, the points are grouped in detail as follows:
if no, the new relay protection device point table is added to the old relay protection device point table;
if the number of the points is not equal, the points are deleted in the point table of the old relay protection device and the point table of the new relay protection device;
one-to-one, which means points in the point tables of the new relay protection device and the old relay protection device;
one to many points means that one point in the point table of the old relay protection device is split into a plurality of points in the point table of the new relay protection device;
many-to-one means that a plurality of points in the point table of the old relay protection device are combined into one point in the point table of the new relay protection device.
Determining mapping logic: according to different groups of points, corresponding mapping logics are respectively established for the points of each group, and the mapping logics are stored in the relay protection device in the form of resource configuration files, wherein the specific mapping relation is as follows:
the points which belong to the groups are non-to-one and non-to-one, and do not need to be mapped, namely no special mapping logic exists;
for the points grouped into one-to-one, the mapping logic is the one-to-one mapping of the point numbers;
for the point grouped into one-to-many, the mapping logic is that the point number of 'multi-side' is taken or mapped to the point number of 'one side';
for the points grouped into many-to-one, the mapping logic is that the point number on one side is mapped to a plurality of point numbers on multiple sides simultaneously;
the determined mapping logic is stored in the form of a resource profile, the format of which includes, but is not limited to, the file format shown in fig. 2.
Analyzing the configuration file: the resource configuration file is analyzed by the HMI program, the new relay protection device point table configuration and the new relay protection device real-time state are respectively converted into the old relay protection device point table configuration and the old relay protection device real-time state after being analyzed, the analysis process of the resource configuration file by the HMI program can be realized only by simple programming, and the method belongs to a mature technology in the industry;
and (4) uploading the converted points: and the real-time state of the converted old relay protection device is uploaded to the background or telemechanical mode through sudden change or calling.
The working principle of the invention is as follows:
the method for converting the point table in the relay protection device is applied to the new relay protection device, and can effectively improve the compatibility of the new relay protection device in communication with a background, telecontrol and the like, so that when the relay protection device is updated in batches in a transformer substation, only the relay protection device can be replaced without synchronously updating the background and telecontrol programs communicated with the relay protection device, and the cost for upgrading the transformer substation protection device is greatly reduced.
The method comprises the steps of grouping according to a certain rule and establishing corresponding mapping logics by comparing and recording differences of point tables of the devices, storing the mapping logics in a relay protection device in the form of a resource configuration file, analyzing the resource configuration file through algorithm programming, realizing the analyzing process by an HMI program, having no influence on the operation of an original protection program and a CPU low-level program, and normally uploading the analyzed point tables or real-time states to a background and a telemechanical terminal. The conversion method can be realized in a new relay protection device only after the point table of the original relay protection device is known, and other relations between the new relay protection device and the old relay protection device are not involved, so that the relay protection devices of different manufacturers can be mutually replaced. The method also provides a free choice space for the substation for its supplier to choose a relay protection device.
In conclusion, the method for switching the point table in the relay protection device effectively improves the compatibility of the new generation of relay protection device, can realize the direct replacement of the relay protection device of the transformer substation, avoids the problem that field background and telecontrol software need to be updated simultaneously when the relay protection device is updated and replaced, reduces the investment cost for updating the relay protection device of the transformer substation, and has good application prospect.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (7)
1. A method for switching a point table in a relay protection device is characterized by comprising the following steps:
comparison and grouping of points in the point table: the point table comprises a plurality of points, corresponding points of the point table in the new relay protection device and the old relay protection device are respectively compared, and the points of the point table in the new relay protection device are grouped according to a preset rule according to the difference of the corresponding points of the point table in the new relay protection device and the old relay protection device; grouping points in a point table of the new relay protection device according to the difference of each point in the point table in the new relay protection device and the old relay protection device; grouping points in the point table comprises none-to-one, one-to-none, one-to-one, one-to-many and many-to-one;
the first group, the none-to-one is points which are not in the old relay protection device point table and are newly added in the new relay protection device point table;
the second group, the pair of none refers to the point which is deleted in the point table of the old relay protection device and the point table of the new relay protection device;
a third group, wherein the one-to-one is points in the point tables of the new relay protection device and the old relay protection device;
a fourth group, wherein the one-to-many mode is that one point in the old relay protection device point table is split into a plurality of points in the new relay protection device point table;
a fifth group, wherein a plurality of points in the many-to-one finger old relay protection device point table are combined into one point in the new relay protection device point table;
determining mapping logic: establishing corresponding mapping logics for the points of each group according to different groups of the points, and storing the mapping logics in a relay protection device in the form of a resource configuration file;
analyzing the configuration file: and analyzing the resource configuration file, and respectively converting the point table configuration of the new relay protection device and the real-time state of the new relay protection device into the point table configuration of the old relay protection device and the real-time state of the old relay protection device after analyzing.
2. The relay protection device point table conversion method according to claim 1, characterized in that: also includes the conversion point table is sent:
and the converted point list configuration of the old relay protection device is uploaded to the background or telemechanical mode in a calling mode, and the real-time state of the converted old relay protection device is uploaded to the background or telemechanical mode in a sudden change or calling mode.
3. The relay protection device point table conversion method according to claim 1, characterized in that: the establishing of the corresponding mapping logic for the points of each group according to the different groups of the points specifically means:
the points which belong to the groups are non-to-one and non-to-one, and do not need to be mapped, namely no special mapping logic exists;
for the points grouped into one-to-one, the mapping logic is the one-to-one mapping of the point numbers;
for the point grouped into one-to-many, the mapping logic is that the point number of 'multi-side' is taken or mapped to the point number of 'one side';
for the point grouped into many-to-one, the mapping logic is that the point number of one side is mapped to a plurality of point numbers of multiple sides at the same time.
4. The relay protection device point table conversion method according to claim 1, characterized in that: and storing the mapping logic in a resource configuration file form, wherein the resource configuration file is compiled by a protection program developer according to an agreed format and is stored in the relay protection device.
5. The relay protection device point table conversion method according to claim 4, wherein: the agreed format written by the resource configuration file comprises a type name, a signal name, an affiliated item number and an affiliated packet number.
6. The relay protection device point table conversion method according to claim 5, characterized in that: the resource configuration file is analyzed by the HMI program according to an agreed format, and the point table configuration and the real-time state after analysis can be directly uploaded to a background or telemechanical state.
7. The relay protection device point table conversion method according to claim 1, characterized in that: and the real-time state of the new relay protection device is updated after the difference is judged through sudden displacement or a circulating task.
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