CN110957705B - Adaptive interval protection strategy configuration method and device - Google Patents
Adaptive interval protection strategy configuration method and device Download PDFInfo
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- CN110957705B CN110957705B CN201911038643.4A CN201911038643A CN110957705B CN 110957705 B CN110957705 B CN 110957705B CN 201911038643 A CN201911038643 A CN 201911038643A CN 110957705 B CN110957705 B CN 110957705B
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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
- H02H7/261—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 involving signal transmission between at least two stations
- H02H7/262—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 involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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Abstract
The invention relates to a self-adaptive interval protection strategy configuration method and a device, belonging to the field of relay protection of a power system transformer substation, and inquiring a corresponding information configuration table according to an interval type, wherein the information configuration table stores: the corresponding relation between each interval type and the protection strategy required by the interval type; wherein the protection strategy is a combination of various different types of protection functions; determining a protection strategy required by the interval type according to the corresponding information configuration table and the corresponding interval type, and calling a plurality of corresponding protection function modules; each protection device stores a function module library; the function module library contains all types of protection function modules. The problems that in the prior art, the research and development efficiency is low and the relay protection device cannot adapt to different intervals due to the fact that the type and the number of versions of functional software of the relay protection device are complicated are solved.
Description
Technical Field
The application relates to a self-adaptive interval protection strategy configuration method and device, and belongs to the field of relay protection of power system transformer substations.
Background
Existing power system relay protection devices are classified into different intervals according to different protection objects, such as line protection devices, element protection devices and the like, wherein the element protection devices can be further classified into transformer protection devices, motor protection devices, reactor protection devices, capacitor protection devices and the like according to different element types. The protection function in each interval has independent software for realizing the protection function, and when the current relay protection devices are numerous in types, software versions and software function quality realized by the protection devices corresponding to the functions produced by each manufacturer are different, so that functional software contained in the corresponding same protection function has different versions. In the corresponding software function development process, various types and versions need to be considered, and the workload of software development and updating is huge.
In addition, in the actual engineering application process, engineers need to constantly pay attention to the consistency between the model of the software loaded in the device and the model of the device. In order to manage the software version and the software function quality of each type of device well and realize the reliability of operation and maintenance, each relay protection manufacturer invests a large amount of manpower, material resources, energy, financial resources and time.
Therefore, in order to solve the problem of low research and development efficiency and low test efficiency caused by various types of functional software of the protection device, inconsistent software versions, unbalanced quality of the protection device and the like in the prior art, a protection strategy configuration method capable of adapting to different intervals is urgently needed.
Disclosure of Invention
The application aims to provide a method and a device for configuring a self-adaptive interval protection strategy, and the method and the device are used for solving the problems that in the prior art, the relay protection device is low in research and development efficiency and upgrading efficiency and cannot adapt to different intervals due to the fact that the types and the version numbers of functional software are complicated.
The technical scheme is as follows: the application provides a self-adaptive interval protection strategy configuration method, which comprises the following steps:
1) acquiring an interval type;
2) inquiring a corresponding information configuration table according to the interval type, wherein the information configuration table stores: the corresponding relation between each interval type and the protection strategy required by the interval type; wherein the protection strategy is a combination of various different types of protection functions;
3) determining a protection strategy required by the interval type according to the corresponding information configuration table and the corresponding interval type, and calling a plurality of corresponding protection function modules;
each protection device stores a function module library; the function module library contains all types of protection function modules.
The relay protection device is designed into different functional modules by functional decomposition, the combination of the functional modules is called according to the interval type to complete the configuration of the protection strategy, and meanwhile, the relation between the interval type and the combination of the functional modules is stored through an information configuration table. By the configuration method, when protection strategies are configured at different intervals, only corresponding function modules need to be called, and since each protection device stores a function module library containing all types of protection function modules, all protection strategies can be updated and upgraded only by researching, developing and upgrading the corresponding function modules, so that the software type and version number can be effectively reduced, the software function quality can be ensured, the research, development and test efficiency can be improved, and the method has good popularization and application scenes. Meanwhile, the protection strategy is configured in the protection device, so that the self-adaption of the protection device in different intervals is realized, and the reliability of the relay protection of the transformer substation is effectively improved.
Further, the protection functions include at least two or more of the following protection functions: differential protection function, distance protection function, overcurrent protection function and zero current protection function.
Further, step 4) initializing service functions: and loading a plurality of protection function modules called according to the protection strategy, and loading the information of the protection function modules into a program execution list.
Further, monitoring whether the interval type is changed in real time, and if the change of the current interval type is detected, re-executing the step 2) and the step 3), and completing the reconfiguration of the protection strategy.
The invention also provides a device for configuring the adaptive interval protection policy, which comprises a processor, a memory and a computer program stored on the memory and running on the processor, wherein the processor executes the computer program to realize the following steps:
1) acquiring an interval type;
2) inquiring a corresponding information configuration table according to the interval type, wherein the information configuration table stores: the corresponding relation between each interval type and the protection strategy required by the interval type; wherein the protection strategy is a combination of various different types of protection functions;
3) determining a protection strategy required by the interval type according to the corresponding information configuration table and the corresponding interval type, and calling a plurality of corresponding protection function modules;
the relay protection device is designed into different functional modules by functional decomposition, the combination of the functional modules is called according to the interval type to complete the configuration of the protection strategy, and meanwhile, the relation between the interval type and the combination of the functional modules is stored through an information configuration table. By the configuration method, when protection strategies are configured at different intervals, only corresponding function modules need to be called, and since each protection device stores a function module library containing all types of protection function modules, all protection strategies can be updated and upgraded only by researching, developing and upgrading the corresponding function modules, so that the software type and version number can be effectively reduced, the software function quality can be ensured, the research, development and test efficiency can be improved, and the method has good popularization and application scenes. Meanwhile, the protection strategy is configured in the protection device, so that the self-adaption of the protection device in different intervals is realized, and the reliability of the relay protection of the transformer substation is effectively improved.
Further, the protection functions include at least two or more of the following protection functions: differential protection function, distance protection function, overcurrent protection function and zero current protection function.
Further, step 4) initializing service functions: and loading a plurality of protection function modules called according to the protection strategy, and loading the information of the protection function modules into a program execution list.
Further, monitoring whether the interval type is changed in real time, and if the change of the current interval type is detected, re-executing the step 2) and the step 3), and completing the reconfiguration of the protection strategy.
Drawings
Fig. 1 is a flowchart of an embodiment of a method for configuring an adaptive interval protection policy according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the application, i.e., the embodiments described are only a subset of, and not all embodiments of the application. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
The features and properties of the present application are described in further detail below with reference to examples.
The embodiment of the method for configuring the self-adaptive interval protection strategy comprises the following steps:
as shown in fig. 1, the specific implementation steps of the adaptive interval protection policy configuration method in this embodiment are as follows:
1) the interval type is obtained.
In this embodiment, the protection devices corresponding to different interval types at least include: line protection devices, component protection devices, etc., wherein the component protection devices can be subdivided into transformer protection devices, motor protection devices, reactor protection devices, capacitor protection devices, etc., depending on the component type.
2) Inquiring a corresponding information configuration table according to the interval type, wherein the information configuration table stores: the corresponding relation between each interval type and the protection strategy required by the interval type; wherein the protection strategy is a combination of various different types of protection functions.
In this embodiment, the generation of the protection policy is realized by designing the configuration file. Specifically, the configuration file mainly includes the following parts: summary of basic information: including all analog, input, output, fixed value and other information needed by the software; secondly, configuring a table by the functional module; and thirdly, configuring information of the protection strategy.
In this embodiment, the information configuration table of the protection policy is composed of a plurality of sub-tables. The construction process of the sub-table is as follows: all protection functions of each protection device are decomposed into various different protection functions, corresponding protection function modules are constructed according to the protection functions to form a function module library, and different function modules required by the interval are selected to be combined according to a certain interval type.
3) Determining a protection strategy required by the interval type according to the corresponding information configuration table and the corresponding interval type, and calling a plurality of corresponding protection function modules; each protection device stores a function module library; the function module library contains all types of protection function modules.
The process is realized in an application layer in software, a plurality of function modules needing to be executed are obtained by reading the protection strategy in the configuration file, the calling of the function modules in the function module library is completed, the service function is realized, and the configuration process of the protection strategy is completed. Specifically, in this embodiment, the process is implemented by dividing different functional modules:
the functions of each protection device are decomposed into a protection function, a remote control function, a remote measurement function, a remote signaling function, a remote regulation function and a self-checking function; the protection function can be decomposed into a differential protection function, a distance protection function, an overcurrent protection function and a zero current protection function. In this embodiment, the module library stores the constructed functional modules, such as functional module 1 and functional module 2 · · functional module n. The functional modules constructed in the embodiment mainly include a differential protection functional module, a distance protection functional module, an overcurrent protection functional module and a zero current protection functional module.
The functions are respectively designed into different functional modules, each functional module comprises a corresponding logic function, an input interface and an output interface, and all the functional modules are compiled into a library to form a functional module library.
After each protection strategy calls a plurality of corresponding protection function modules according to the requirements of a protection object, namely an interval type, the information of the function modules required by the protection strategy is selected from the basic information general table and the function module general table, and the interface association of the basic information and the function modules is completed, so that the interface configuration of the function modules is realized.
4) After the protection strategy configuration is completed, initialization is carried out, and the presetting of the service function module to be executed by the current software is completed on the application layer according to the protection strategy information loaded from the configuration file, namely the information configuration table. Only one protection strategy is allowed to be initialized after once power-on or reset, the information of the function modules of the initialized protection strategy is loaded into a program execution list, and the basic information associated with the function modules is loaded into a system layer man-machine interaction list execution list; the function module information of the protection strategy which is not initialized is not loaded into the program execution list, and the basic information corresponding to the function module information is not loaded into the system layer human-computer interaction list execution list.
5) According to the initialized result, executing the corresponding protection strategy function: in the software running process, function modules in the program execution list are called circularly, and information in the human-computer interaction execution list is visible and settable under a specified interface of the device according to different attributes; enabling states of all protection strategies in the configuration file are visible and settable under an interface of the device.
6) In the running process of the device, the protection strategy to be executed at any time can be modified, the switching state information of all the protection strategies can be monitored in real time, when the protection strategy state to be executed at present is detected to be rewritten and stored, a reset command is sent, the steps are executed again, and the configuration of the protection function is automatically completed.
In this embodiment, after configuring the protection policy for an interval, since one function module library including all protection functions is stored in the protection device, if a protection device for a certain interval fails, and when a worker applies a protection device for another interval to the interval, since the function module library including all protection functions is stored in the protection device, the protection device for switching the interval type can obtain the interval type again, and call the protection function module stored in the corresponding interval configuration information table, thereby implementing automatic protection policy configuration. For example, protection devices configured with corresponding protection strategies are respectively installed in the line protection interval, the capacitor protection interval and the transformer protection interval, when the protection devices in the line protection interval are abnormal, the protection devices in the transformer protection interval are applied to the line protection interval, and the protection devices can query an information configuration table according to the current interval type, so that a plurality of function modules in the corresponding protection strategies are called, and self-adaptation of the configuration process of the protection strategies in different intervals is realized.
The embodiment of the device for configuring the self-adaptive interval protection strategy comprises the following steps:
the embodiment provides an adaptive interval protection policy configuration device, which includes a processor, a memory and a computer program stored in and run on the memory, where the processor may be implemented by a single chip microcomputer, an FPGA, a DSP, a PLC, or an MCU, the memory may be implemented by a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art, and the storage medium may be coupled to the processor, so that the processor can read information from the storage medium, or the storage medium may be a component of the processor.
When the processor executes the computer program, the following self-adaptive interval protection strategy configuration method is realized:
1) acquiring an interval type;
2) inquiring a corresponding information configuration table according to the interval type, wherein the information configuration table stores: the corresponding relation between each interval type and the protection strategy required by the interval type; wherein the protection strategy is a combination of various different types of protection functions;
3) determining a protection strategy required by the interval type according to the corresponding information configuration table and the corresponding interval type, and calling a plurality of corresponding protection function modules;
each protection device stores a function module library; the function module library contains all types of protection function modules.
The specific implementation of each step has been described in detail in the foregoing embodiment of the adaptive interval protection policy configuration method, and is not described here again.
The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.
Claims (4)
1. A method for configuring an adaptive interval protection strategy is characterized by comprising the following steps:
1) acquiring an interval type;
2) inquiring a corresponding information configuration table according to the interval type, wherein the information configuration table stores: the corresponding relation between each interval type and the protection strategy required by the interval type; wherein the protection strategy is a combination of various different types of protection functions; the corresponding information configuration table includes: a basic information summary table, a function module configuration table and an information configuration table of a protection strategy;
3) determining a protection strategy required by the interval type according to the corresponding information configuration table and the corresponding interval type, calling a plurality of corresponding protection function modules, and after calling a plurality of corresponding protection function modules, selecting information of the required function modules from the basic information summary table and the function module configuration table, completing interface association of the basic information and the function modules, and realizing interface configuration of the function modules; each protection device stores a function module library; the function module library comprises all types of protection function modules;
4) initialization of business functions: loading a plurality of protection function modules called according to a protection strategy, and loading the information of the protection function modules into a program execution list;
monitoring whether the interval type is changed or not in real time, and if the change of the current interval type is detected, re-executing the step 2) and the step 3) to complete the reconfiguration of the protection strategy.
2. The adaptive interval protection policy configuration method according to claim 1, wherein the protection functions include at least two or more of the following protection functions: differential protection function, distance protection function, overcurrent protection function and zero current protection function.
3. An adaptive interval protection policy configuration apparatus, comprising a processor and a memory, and a computer program stored on the memory and running on the processor, wherein the processor executes the computer program to implement the following steps:
1) acquiring an interval type;
2) inquiring a corresponding information configuration table according to the interval type, wherein the information configuration table stores: the corresponding relation between each interval type and the protection strategy required by the interval type; wherein the protection strategy is a combination of various different types of protection functions; the corresponding information configuration table includes: a basic information summary table, a function module configuration table and an information configuration table of a protection strategy;
3) determining a protection strategy required by the interval type according to the corresponding information configuration table and the corresponding interval type, calling a plurality of corresponding protection function modules, and after calling a plurality of corresponding protection function modules, selecting information of the required function modules from the basic information summary table and the function module configuration table, completing interface association of the basic information and the function modules, and realizing interface configuration of the function modules;
each protection device stores a function module library; the function module library comprises all types of protection function modules;
4) initialization of business functions: loading a plurality of protection function modules called according to a protection strategy, and loading the information of the protection function modules into a program execution list;
monitoring whether the interval type is changed or not in real time, and if the change of the current interval type is detected, re-executing the step 2) and the step 3) to complete the reconfiguration of the protection strategy.
4. The adaptive interval protection policy configuration apparatus according to claim 3, wherein the protection functions comprise at least two or more of the following protection functions: differential protection function, distance protection function, overcurrent protection function and zero current protection function.
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