CN113852039A - Method and device for loading direct current protection constant value in batch on line - Google Patents
Method and device for loading direct current protection constant value in batch on line Download PDFInfo
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- CN113852039A CN113852039A CN202110665505.XA CN202110665505A CN113852039A CN 113852039 A CN113852039 A CN 113852039A CN 202110665505 A CN202110665505 A CN 202110665505A CN 113852039 A CN113852039 A CN 113852039A
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- 238000011068 loading method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000004048 modification Effects 0.000 claims description 11
- 238000012986 modification Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 238000010845 search algorithm Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/006—Calibration or setting of parameters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
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Abstract
The invention relates to a method and a device for loading a direct current protection constant value on line in batch, wherein the method comprises the steps of reading and analyzing a direct current protection constant value list, binding a protection constant value in the protection constant value list with a related variable address in a direct current protection program in an associated manner, directly writing the constant value in the protection constant value list into the direct current protection program, downloading the direct current protection program into a protection device, modifying a corresponding protection constant value variable in the protection device by modifying the protection constant value list constant value during the online period of the protection program, and finally completing the function of loading the protection constant value in the direct current protection device on line in batch. Through the technical scheme of the invention, the problem that the direct-current protection constant value can only be manually input item by item offline is solved, the condition that the direct-current protection constant value is easily input by mistake by manual work is avoided, the labor cost is saved, the working efficiency is improved, and the correctness of the loading of the protection constant value can be ensured.
Description
Technical Field
The invention relates to the technical field of direct-current power transmission control protection, in particular to a method and a device for loading a fixed value of direct-current protection on line in batch.
Background
In the direct-current transmission control protection device, direct-current protection is the core of a control protection system, the reliability of the direct-current transmission control protection device is directly related to the safety of direct-current transmission secondary equipment, and the stable operation of a power grid where a direct-current transmission system is located can be influenced.
Before the direct-current protection is applied to a direct-current transmission system, a setting calculation needs to be carried out according to specific protection requirements to obtain a protection constant value, and the protection constant value needs to be loaded by operating personnel on site, so that the direct-current protection can work correctly in the direct-current transmission system, and the requirement of protecting direct-current transmission equipment is met. The existing direct current transmission constant value input work is finished in an off-line state, namely, running personnel manually input the direct current protection program item by item on site according to a protection constant value list, then the on-line debugging confirmation of the protection program is carried out, if a writing error or a protection constant value resetting condition occurs in the on-line period, a variable address corresponding to the protection constant value in the protection program needs to be searched again after the off-line process, the protection constant value is input again, and finally the on-line debugging work of the protection program is finished.
The direct current transmission protection comprises pole protection, converter valve protection, filter protection and the like, each protection has a specific protection constant value, manual input debugging time is long, and input errors are easy to occur to cause the problem of wrong setting. Especially, a large extra-high voltage direct current transmission project is short in construction period, input of a protection constant value list is completed in a short time, a wrong input phenomenon is easily caused, and safety of the whole direct current transmission system is possibly affected.
Disclosure of Invention
Based on the above situation in the prior art, an object of the present invention is to provide a method and an apparatus for loading dc protection setting values in batch on-line, wherein protection setting value information is written into a corresponding dc protection program in an associated manner, and the protection setting value information is loaded into a dc protection apparatus through the dc protection program at the same time, so as to solve the problem that the dc protection setting values can only be input offline manually one by one, avoid the situation that the manual input is prone to be mistakenly input, save the labor cost, improve the work efficiency, and ensure the correctness of the loading of the protection setting values.
In order to achieve the above object, according to an aspect of the present invention, there is provided a dc protection fixed value batch online loading method, comprising:
reading and analyzing a direct-current protection constant value list from a direct-current transmission substation station control layer to obtain protection constant value information in the direct-current protection constant value list;
writing the protection constant value information into a corresponding direct current protection program in an associated mode;
and simultaneously loading the protection setting value information into the direct current protection device through the direct current protection program.
Further, writing the protection fixed value information into a corresponding direct current protection program in an associated manner, including:
matching the protection fixed value information with the function information of corresponding variables in the direct current protection program; and binding the protection fixed value information with the address of the corresponding quantity in the direct current protection program.
Further, the protection fixed value information includes a fixed value classification, a fixed value name, a setting value, and a fixed value unit.
Further, matching the protection constant value information with corresponding function information in the direct current protection program through a Hash retrieval algorithm.
Further, the method also comprises the following steps:
and in the running process of the direct current protection program, modifying the corresponding protection constant value in the direct current protection device by changing the setting value in the direct current protection constant value list.
According to another aspect of the invention, a device for loading the direct current protection constant value in batch on line is provided, which comprises a protection constant value information acquisition module, a protection constant value information matching module and a protection constant value information loading module; wherein the content of the first and second substances,
the protection constant value information acquisition module reads and analyzes a direct current protection constant value list from a direct current transmission substation station control layer to obtain protection constant value information in the direct current protection constant value list;
the protection constant value information matching module writes the protection constant value information into a corresponding direct current protection program in an associated mode;
and the protection fixed value information loading module loads the protection fixed value information into the direct current protection device through the direct current protection program.
Further, the writing of the protection fixed value information into the corresponding dc protection program in an associated manner by the protection fixed value information matching module includes:
matching the protection fixed value information with the function information of corresponding variables in the direct current protection program; and binding the protection fixed value information with the address of the corresponding quantity in the direct current protection program.
Further, the protection fixed value information includes a fixed value classification, a fixed value name, a setting value, and a fixed value unit.
Further, the protection fixed value information matching module matches the protection fixed value information with corresponding function information in the direct current protection program through a hash retrieval algorithm.
Furthermore, the device also comprises a protection fixed value information modifying module,
and the protection constant value information modification module modifies the corresponding protection constant value in the direct current protection device by changing the setting value in the direct current protection constant value list in the running process of the direct current protection program.
In summary, the present invention provides a method and an apparatus for batch online loading of a dc protection constant value, wherein a dc protection constant value sheet is read and analyzed, a protection constant value in the protection constant value sheet is associated and bound with a related variable address in a dc protection program, the constant value in the protection constant value sheet is directly written into the dc protection program, and then the dc protection program is downloaded into a protection apparatus, and the protection program can complete modification of a corresponding protection constant value variable in the protection apparatus by modifying the protection constant value sheet constant value during online, and finally complete a function of batch online loading of the protection constant value into the dc protection apparatus. By the technical scheme, the problem that the direct-current protection constant value can only be manually input item by item offline is solved, the condition that the direct-current protection constant value is input by mistake by manpower is avoided, and the labor cost is saved; the method can realize batch and online downloading of the protection constant value at the same time, improve the working efficiency and ensure the correctness of loading the protection constant value.
Drawings
Fig. 1 is a topology structure diagram of a dc power transmission control protection system;
FIG. 2 is a flow chart of the DC protection fixed value batch online loading method of the present invention;
FIG. 3 is a schematic illustration of a human-machine interface according to one embodiment of the invention;
FIG. 4 is a block diagram of the DC protection constant value batch online loading device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. Fig. 1 shows a topology diagram of a dc power transmission control protection system, which includes an operation control stage, a control protection stage, and a field stage, as shown in fig. 1. The technical scheme provided by the invention is applied to an operation control level, and can remotely finish the downloading operation of the direct current protection constant value by combining a direct current visual protection program, and the protection constant value is downloaded to a hardware board card for controlling the protection level.
According to an embodiment of the present invention, a method for loading dc protection fixed value in batch online is provided, a flowchart of the method is shown in fig. 2, and the method includes the following steps:
and reading and analyzing the direct-current protection constant value list from the station control layer of the direct-current transmission substation to obtain protection constant value information in the direct-current protection constant value list. Generally speaking, the protection constant value list is stored in an excel table, and the constant value list information in the table can be read through the source code. The protection fixed value information in the direct current protection fixed value list comprises fixed value classification, fixed value name, setting value, fixed value unit and the like; the method comprises the following steps of classifying direct-current converter valve protection constant value single-medium valve short-circuit protection, valve group differential protection, commutation failure protection and the like; the phase commutation failure protection constant value list has setting values such as a differential current upper limit, a differential starting constant value and the like; the pole protection constant value list has constant value information such as system switching constant value, system switching delay, I-section voltage constant value and the like.
And after the protection constant value information in the direct current protection constant value list is obtained through analysis, writing the protection constant value information into a corresponding direct current protection program in an associated mode. The method can be specifically carried out according to the following steps:
and matching the protection constant value information with the function information of the corresponding variable in the direct current protection program, wherein a Hash search algorithm can be adopted in the matching process, the analyzed constant value classification and constant value name in the protection constant value information are respectively matched with the variable function information in the protection program through the Hash search algorithm, and address binding is carried out after the matching of the fixed value classification and the constant value name is successful. And binding the protection fixed value information with the address of the corresponding quantity in the direct current protection program. The address of the variable is a unique identifier, and the unique identifier is used for positioning a storage address for protecting fixed value information in the direct current protection device. If the protection fixed value can not be matched, the binding relationship can be completed by manually inputting the variable address. In the direct current protection program, the variable is specifically a pin value of a functional block in the visual protection program, and the variable function is described through functional block remarks and functional block pin remarks. The direct current protection program can be divided into pole protection, converter valve protection, filter protection and the like according to different functions, and the corresponding protection constant value list is also divided into a pole protection constant value list, a converter valve protection constant value list and the like.
Fig. 3 shows a man-machine interface diagram according to the present embodiment. In this embodiment, an HCM3000 platform for an extra-high voltage dc transmission project is taken as an example to describe a process of completing protection constant value loading through a protection program of the platform. The HCM3000 platform is an embedded high-end industrial control system software and hardware platform. The platform is widely applied to the field of high-voltage and extra-high-voltage direct-current transmission and other power systems. As shown in fig. 3, paths O3_ funcdpp 1.dcovp _ SETTINGs _1.X1, O3_ funcdpp 1.dcovp _ SETTINGs _2.X3, O3_ funcdpp 1.dcovp _ SETTINGs _2.X8 in the pole protection SETTING list are protection program variable addresses, which are bound with protection SETTING values such as system switch SETTING value, phase ii switch delay, iii action delay, etc. in the protection SETTING list, and these variable addresses are unique identifiers of protection SETTING value storage addresses in the associated protection device. O3_ FUNCDCPD 1.DCOVP _ SETTING _2.X3 is a path in the protection constant value list and is a concrete embodiment of a variable in the protection program, and the protection constant value list and the protection program can be associated through the information.
After binding is completed, the fixed value information in the protection fixed value list is automatically written into the direct current protection program, and the protection fixed value information is simultaneously loaded into the direct current protection device through the direct current protection program.
In the actual operation process, the direct current protection constant value is not constant and is required to be set again and input again at different time intervals according to the actual condition of the transformer substation, at the moment, the protection constant value list can be directly modified, the modification of the protection program is completed according to the binding relationship between the protection constant value list and the protection program, and finally the online loading operation of the protection constant value is completed.
According to another embodiment of the present invention, a block diagram of a dc protection constant value batch online loading device is shown in fig. 4, and the device includes a protection constant value information obtaining module, a protection constant value information matching module, and a protection constant value information loading module; wherein the content of the first and second substances,
and the protection constant value information acquisition module reads and analyzes the direct current protection constant value list from the direct current transmission substation station control layer to obtain the protection constant value information in the direct current protection constant value list. The protection fixed value information comprises fixed value classification, fixed value name, setting value and fixed value unit.
The protecting constant value information matching module writes the protecting constant value information into a corresponding direct current protecting program in an associated manner, which may specifically include: matching the protection fixed value information with the function information of the corresponding variable in the direct current protection program, and matching the protection fixed value information with the function information of the corresponding variable in the direct current protection program through a Hash retrieval algorithm; and binding the protection fixed value information with the address of the corresponding quantity in the direct current protection program.
And the protection fixed value information loading module loads the protection fixed value information into the direct current protection device through the direct current protection program.
Furthermore, a protection fixed value information modification module can be further included,
the protection constant value information modification module modifies the corresponding protection constant value in the direct current protection device by changing the setting value in the direct current protection constant value list in the running process of the direct current protection program
In summary, the present invention relates to a method and an apparatus for batch online loading of a dc protection constant value, wherein a dc protection constant value sheet is read and analyzed, a protection constant value in the protection constant value sheet is associated and bound with a related variable address in a dc protection program, the constant value in the protection constant value sheet is directly written into the dc protection program, and then the dc protection program is downloaded into a protection apparatus, and the protection program can complete modification of a corresponding protection constant value variable in the protection apparatus by modifying the protection constant value sheet constant value during online, and finally complete a function of batch online loading of the protection constant value into the dc protection apparatus. By applying the technical scheme of the invention, the direct-current substation operating personnel can complete the loading of the protection constant values in batches according to the binding relationship between the direct-current protection constant value list and the direct-current protection program, and can complete the modification of the protection constant values in the protection device on line by modifying the protection constant value list, thereby avoiding the potential safety hazard of manual input, improving the working efficiency and realizing the rapid and accurate loading of the protection constant values.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A DC protection constant value batch online loading method is characterized by comprising the following steps:
reading and analyzing a direct-current protection constant value list from a direct-current transmission substation station control layer to obtain protection constant value information in the direct-current protection constant value list;
writing the protection constant value information into a corresponding direct current protection program in an associated mode;
and simultaneously loading the protection setting value information into the direct current protection device through the direct current protection program.
2. The method according to claim 1, wherein writing the protection fixed value information into the corresponding dc protection program in an associated manner comprises:
matching the protection fixed value information with the function information of corresponding variables in the direct current protection program; and binding the protection fixed value information with the address of the corresponding quantity in the direct current protection program.
3. The method of claim 1, wherein the protection fixed value information comprises a fixed value classification, a fixed value name, a setting value, and a fixed value unit.
4. The method according to claim 2, characterized in that the protection value information is matched with a corresponding amount of functional information in the dc protection program by a hash search algorithm.
5. The method of claim 1, further comprising:
and in the running process of the direct current protection program, modifying the corresponding protection constant value in the direct current protection device by changing the setting value in the direct current protection constant value list.
6. A direct current protection constant value batch online loading device is characterized by comprising a protection constant value information acquisition module, a protection constant value information matching module and a protection constant value information loading module; wherein the content of the first and second substances,
the protection constant value information acquisition module reads and analyzes a direct current protection constant value list from a direct current transmission substation station control layer to obtain protection constant value information in the direct current protection constant value list;
the protection constant value information matching module writes the protection constant value information into a corresponding direct current protection program in an associated mode;
and the protection fixed value information loading module loads the protection fixed value information into the direct current protection device through the direct current protection program.
7. The apparatus according to claim 6, wherein the protection fixed value information matching module writes the protection fixed value information into the corresponding dc protection program in an associated manner, including:
matching the protection fixed value information with the function information of corresponding variables in the direct current protection program; and binding the protection fixed value information with the address of the corresponding quantity in the direct current protection program.
8. The apparatus of claim 6, wherein the protection fixed value information comprises a fixed value classification, a fixed value name, a setting value, and a fixed value unit.
9. The apparatus according to claim 7, wherein the protection fixed value information matching module matches the protection fixed value information with a corresponding amount of function information in the dc protection program by using a hash search algorithm.
10. The apparatus of claim 6, further comprising a protection-fixed-value-information modification module,
and the protection constant value information modification module modifies the corresponding protection constant value in the direct current protection device by changing the setting value in the direct current protection constant value list in the running process of the direct current protection program.
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| CN202110665505.XA CN113852039A (en) | 2021-06-16 | 2021-06-16 | Method and device for loading direct current protection constant value in batch on line |
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| CN202110665505.XA CN113852039A (en) | 2021-06-16 | 2021-06-16 | Method and device for loading direct current protection constant value in batch on line |
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