Flexible configuration method and system of a medium and low voltage measurement device

Abstract

The application discloses a flexible configuration method and system of a middle-low voltage protection device, and the method comprises the following steps: independently decomposing a device sampling function to form a sampling matrix configuration module suitable for various AC input loops; classifying device input and output signals according to uses to form an input and output signal matrix configuration module with flexible configuration; adapting to protection logic according to sampling, input and output values of the sampling matrix configuration module and the input and output signal matrix configuration module to form a protection logic function module which can be edited online; and dynamically scheduling function components to manage the operation of each module. The application has a friendly visual development interface, is simple to operate, can meet the needs of various application scenarios by virtue of rich function module elements, and can efficiently complete the customized development of the variable functions of the device by virtue of flexible configuration combination.

Description

TECHNICAL FIELD

[0001] The present application relates to a flexible configuration method and system of a medium and low voltage protection and measurement device, and belongs to the technical field of power automation. BACKGROUND

[0002] The current smart grid has entered an accelerated development period, and the characteristics and operating characteristics of the power grid are undergoing profound changes. Due to the continuous progress of smart grid technology, the networking, informatization and intelligentization of substations are more obvious, and the basic support role of automation equipment is increasingly important. Among them, the smart grid terminal device represented by the 35kV and below protection and measurement control product is well-known for its many use scenarios, complex branch models and fast functional iteration. In the face of complex non-standard projects, the current development mode is still mainly based on manual code writing according to the needs of non-standard projects. This mode can be maintained when the non-standard project quantity is small, but when the non-standard project quantity is large, it will bring huge manpower and time costs. The products of famous international electrical companies have long used configuration software mode for customization development, and some domestic well-known electrical equipment manufacturers also have their own configuration software for customization of the function logic of protection and measurement devices. Therefore, there is an urgent need to develop a medium and low voltage protection and measurement device that meets the characteristics of platform products and can be flexibly configured, to improve development efficiency, reduce maintenance difficulty, simplify and standardize the interface and implementation form of the function module, and facilitate the use of users and field engineering configuration personnel. SUMMARY

[0003] The purpose of the present application is to overcome the deficiencies in the prior art, and to provide a flexible configuration method and system of a medium and low voltage protection and measurement device, which replaces the original code-based development method and is an important means to promote the company to reduce costs and increase efficiency.

[0004] To achieve the above-mentioned purpose, the present application is implemented by using the following technical solutions:

[0005] In a first aspect, the present application provides a flexible configuration method of a medium and low voltage protection and measurement device, comprising:

[0006] The device sampling function is independently decomposed to form a sampling matrix configuration module suitable for multiple AC input loops;

[0007] The device input and output signals are classified according to their purposes to form a flexible and configurable input and output signal matrix configuration module;

[0008] According to the sampling values of the sampling matrix configuration module and the input and output values of the input and output signal matrix configuration module, the protection logic function module is adapted to the protection logic to form a protection logic function module that can be edited online;

[0009] According to the protection logic function module, a communication model file of 61850 is generated for the 61850 communication of the device;

[0010] The sampling matrix configuration module, the incoming-outgoing signal matrix configuration module and the protection logic function module are integrated, and a dynamic scheduling function component manages the operation of each module.

[0011] Further, the sampling matrix configuration module is used for classifying different interchange flows and assigning channel characteristic codes; channel instantiation configuration is performed on the hardware interchange board in a flexible configuration tool; after the matrix configuration file is parsed by an application basic program, the interchange data input by the channel are processed according to the different characteristic codes, and sampling values are obtained as input discrimination conditions of the editable protection logic module.

[0012] Further, the incoming-outgoing matrix configuration module is used for classifying the defined incoming signals, associating the channels according to the incoming properties in the incoming matrix configuration, performing anti-shake and code conversion processing on the incoming signals in the incoming channel calculation element, and processing the signals as input discrimination conditions of the editable protection logic module; the outgoing signals are classified, and the corresponding protection function elements are associated according to the outlet properties in the protection logic function module as output execution mechanisms.

[0013] Further, the protection logic function module is used for performing online logic editing and modification such as comparison of magnitude values, calculation of and or not logic according to the sampling, incoming and outgoing values of the sampling matrix configuration module and the incoming-outgoing signal matrix configuration module, and forming protection logic elements with different functions.

[0014] Further, the model automatic generation module is used for obtaining the information of LN and DO according to the elements that have been instantiated by the graph, generating a model file matched with the graph, and performing 61850 communication of the device.

[0015] Further, the visual scheduling task module is used for flexibly adding or deleting the protection function logic module, managing the operation time sequence of different protection function modules, setting the protection function, the measurement and control function and the alarm function and the like elements, and exporting a scheduling task configuration file to cooperate with the visual interface module in the application basic program, wherein the application basic program instantiates the elements and allocates code storage spaces according to the names of the elements and the operation task levels in the scheduling task configuration file, and operates the elements in the corresponding task levels.

[0016] In a second aspect, the application provides a flexible configuration system of a medium and low voltage protection and measurement device, comprising:

[0017] A sampling matrix configuration module is used for independently decomposing the sampling function of the device and is suitable for a variety of interchange input circuits.

[0018] An open-in and open-out signal matrix configuration module is configured to classify the device open-in and open-out signals according to the use;

[0019] A protection logic function module is configured to perform online logic editing and modification such as comparison of magnitude values, calculation of AND, OR and NOT logic, and form protection logic elements with different functions according to the sampling, open-in and open-out values of the sampling matrix configuration module and the open-in and open-out signal matrix configuration module;

[0020] A model automatic generation module is configured to generate a communication model file of 61850 for 61850 communication of the device;

[0021] A visual scheduling task module is configured to dynamically schedule the function component to manage the operation of each module.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] The flexible configuration method and system of the low-voltage protection device provided by the present application modularly decomposes according to the development requirements of the low-voltage protection device, then forms element units of each function module, and finally forms a graphical engineering of the entire device by mutual association and combination of each function module unit; the friendly visual development interface is easy to operate, the rich function module elements can meet the requirements of various application scenarios, the flexible configuration combination can efficiently complete the customized development of the variable functions of the device; the original code-based development means is replaced, compared with the traditional mode, the configuration tool has a visual man-machine interactive interface, rich configuration functions and an integrated solution, and is an important way to promote device development and reduce costs and increase efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 An analog input configuration schematic diagram provided by the embodiment of the present application;

[0025] Figure 2 A matrix open-in and open-out configuration schematic diagram provided by the embodiment of the present application;

[0026] Figure 3 An editable protection logic configuration schematic diagram provided by the embodiment of the present application;

[0027] Figure 4 A model automatic generation schematic diagram provided by the embodiment of the present application;

[0028] Figure 5 A scheduling task configuration schematic diagram provided by the embodiment of the present application;

[0029] Figure 6 A flowchart provided by the embodiment of the present application. DETAILED DESCRIPTION

[0030] The application will be further described below with reference to the drawings. The following examples are only used to more clearly illustrate the technical solutions of the application, and cannot be used to limit the protection scope of the application.

[0031] Example 1

[0032] This example introduces a flexible configuration method of a medium and low voltage protection device, comprising:

[0033] The sampling function of the device is independently decomposed to form a sampling matrix configuration module suitable for various AC input circuits;

[0034] The incoming and outgoing signals of the device are classified according to the purpose to form a flexible and configurable incoming and outgoing signal matrix configuration module;

[0035] According to the sampling, incoming and outgoing values of the sampling matrix configuration module and the incoming and outgoing signal matrix configuration module, the protection logic function module which can be edited online is formed by adapting to the protection logic;

[0036] According to the protection logic function module, a communication model file of 61850 is generated for the 61850 communication of the device;

[0037] The sampling matrix configuration module, the incoming and outgoing signal matrix configuration module and the protection logic function module are integrated to dynamically schedule the function components to manage the operation of each module.

[0038] The flexible configuration method of the medium and low voltage protection device provided in this example specifically involves the following steps in the application process:

[0039] (1) The first step is to independently decompose the sampling function of the device to form a sampling matrix configuration module suitable for various AC input circuits;

[0040] (2) The second step is to classify the incoming and outgoing signals of the device according to the purpose to form a flexible and configurable incoming and outgoing signal matrix configuration module;

[0041] (3) The third step is to adapt to the protection logic according to the sampling, incoming and outgoing values in the first step and the second step to form a protection logic function module which can be edited online;

[0042] (4) The fourth step is to generate a communication model file of 61850 by the model automatic generation module according to the protection logic function module combination in the third step, for the 61850 communication of the device;

[0043] (5) The fifth step is to integrate all the function modules in the first step to the third step by using the visual scheduling task module, and dynamically schedule the function components to manage the operation of each module.

[0044] Preferably, in step (1), the sampling function is independently decomposed into a matrix configuration module, different current flows are classified and assigned channel characteristic codes, for example, voltage and current channels are classified (such as U: voltage; I: current), and the current is also subdivided according to the name function (such as Ia, Ib, Ic); the channel characteristic codes of the physical channels of a certain type of hardware AC board are arranged according to the actual order; the channel instantiation configuration of the hardware AC board is performed in the input matrix configuration module in the flexible configuration tool (VICT); after the matrix configuration file is parsed by the application basic program, the AC data input by the channel is processed according to the different characteristic codes to obtain the sampling value, which is used as the input discrimination condition of the editable protection logic module in step (3). The visual AC input matrix configuration mode of the flexible configuration tool (VICT) can match the sampling requirements of different hardware AC boards.

[0045] Preferably, in step (2), the input and output matrix configuration module is classified according to the use. First, the defined inputs are classified, such as remote signaling inputs for measurement and control, protection inputs for protection logic, single-point locking inputs, double-point position inputs, etc. The channel association is performed according to the input properties in the input matrix configuration, and the input is processed by anti-jitter and code conversion in the input channel calculation element. The processed signal is used as the input discrimination condition of the editable protection logic module in step (3). Then, the output signals are classified, such as relay outputs, GOOSE outputs, holding outputs, and non-holding outputs, etc. The output matrix module is used to associate the corresponding protection function elements according to the output properties in step (3) as the output actuator. This method can effectively avoid code redevelopment and can be modified by engineers, solving the configuration requirements of inputs and outputs in most cases in engineering practice.

[0046] Preferably, in step (3), the protection logic function module can be edited online. According to the sampling values and input signals in steps (1) and (2), the online logic editing and modification such as comparison of magnitude values, calculation of and or not logic, etc. are performed; thereby forming protection logic elements with different functions, such as overcurrent protection elements, overvoltage protection elements, and low-frequency load shedding protection elements. The calculation results of each function element are configured by the output matrix module in step (2) to drive external relay elements or GOOSE signal generators. This function is beneficial to expand the availability of protection logic elements, and compared with code-based logic elements, it can better adapt to the customized logic functions required by different sites and reduce the code customization development amount.

[0047] Preferably, in the step (4), the model automatic generation module, each graphic element unit integrates the function module of model automatic generation, which can be customized model generation rules by interface and script file. In the drawing of graphic module, the generation rule of model is also redefined. In the generation of configuration file, according to the interrelated combination formed by each protection function module in step (3), the model will obtain the information of LN and DO according to the element of the instantiated graphics, generate the model file matched with it, and be used for the 61850 communication of the device.

[0048] Preferably, in the step (5), the visual scheduling task module can not only flexibly add or delete the protection function logic module in step (3), but also can manage the running sequence of different protection function modules. Through the scheduling task tool (SCT), the protection function, the measurement and control function and the alarm function element can be set, and finally the scheduling task configuration file is exported. The visual interface module in the application basic program is matched, the application program instantiates the element and allocates the code storage space according to the name of the element in the scheduling task configuration file, the running task level, and runs the element in the corresponding task level. The function integrates and manages all the function modules in steps (1) to (3), and guarantees the efficient running of the protection logic of the device.

[0049] The contents designed in the above embodiment will be described below in combination with a preferred embodiment.

[0050] The present application provides a flexible configuration method of a middle-low voltage protection device, which comprises the following parts:

[0051] I. IED engineering configuration is divided into

[0052] (1) the corresponding type engineering of IED is established and managed by using project configuration (Project) ;

[0053] (2) the hardware board type used by the corresponding IED is set by using hardware configuration tool (HWT) ;

[0054] (3) the scheduling task level of the function block required by IED is distributed by using scheduling task tool (SCT) ;

[0055] (4) the analog input, switch input and relay output of IED are configured by using matrix configuration tool (MCT) ;

[0056] (5) the function logic is added or deleted, and the connection relationship between the function blocks is modified by using graphical application logic configuration tool (VPT) ;

[0057] (6) the reference table data of IED is modified by using reference table configuration tool (RRT) ;

[0058] (7) Modify the parameter table of the IED using the device parameter configuration tool (PST) ;

[0059] (8) Configure the corresponding panel light signal using the LED light configuration tool (LED) ;

[0060] (9) Configure the IED menu items using the menu configuration tool (MET).

[0061] II. Configuration file generation and verification

[0062] The configuration file exported by the VICT tool includes a comprehensive configuration file (config), a word file (word), a menu file (menucfg), a scheduling task file (sch), and a model file (cid). The generated file is first verified by the VICT tool, and if there is no error, the corresponding file can be output. Then, the generated file can also be verified by a third-party tool or manually checked.

[0063] III. Whole machine configuration debugging

[0064] The online debugging tool (OOT) is used to connect and debug the device, and the configuration file is downloaded online to the device. The device is debugged for analog quantity acquisition, switch quantity input and output, and protection function logic, etc. At the same time, the OOT can be used to monitor the variables and memory online, and verify the correctness of the configuration function.

[0065] Embodiment 2

[0066] The embodiment provides a flexible configuration system of a medium and low voltage protection device, which comprises:

[0067] A sampling matrix configuration module is used to independently decompose the sampling function of the device, and is suitable for various AC input circuits.

[0068] An input and output signal matrix configuration module is used to classify the input and output signals of the device according to the use;

[0069] A protection logic function module is used to perform online logic editing and modification such as comparison of large and small values, calculation of AND and NOT logic according to the sampling, input and output values of the sampling matrix configuration module and the input and output signal matrix configuration module, to form protection logic elements with different functions.

[0070] A model automatic generation module is used to generate a communication model file of 61850, which is used for 61850 communication of the device.

[0071] A visual scheduling task module is used to dynamically schedule the function components to manage the operation of each module.

[0072] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A flexible configuration method for a medium- and low-voltage protection and monitoring device, characterized in that, include: The sampling function of the device is decomposed independently to form a sampling matrix configuration module suitable for various AC input circuits; The sampling matrix configuration module is used to classify different AC quantities and assign channel feature codes; In the flexible configuration tool, the hardware AC board is instantiated and configured with channels; after the application basic program parses the matrix configuration file, the AC data input to the channel is processed according to the different feature codes to obtain the sampled value, which is used as the input discrimination condition of the editable protection logic module; The input and output signals of the device are classified according to their uses, forming a flexible and configurable input and output signal matrix configuration module. This module categorizes the defined input signals, associates channels based on input attributes in the input matrix configuration, and performs anti-jitter and encoding conversion processing on the input signals in the input channel calculation element. The processed signals serve as input judgment conditions for the editable protection logic module. The output signals are also categorized, and their corresponding protection function elements are associated with their output attributes in the protection logic function module, serving as output actuators. Based on the sampling, input, and output values ​​of the sampling matrix configuration module and the input / output signal matrix configuration module, they are adapted to the protection logic to form a protection logic function module that can be edited online. According to the protection logic function module, the communication model file of 61850 is generated by the model automatic generation module; the model automatic generation module is used to obtain the LN and DO information based on the interrelated combination formed by the various protection function modules in the protection logic function module, and generate a matching model file for the communication of the device 61850. The sampling matrix configuration module, input / output signal matrix configuration module, and protection logic function module are integrated, and the operation of each module is managed by the dynamic scheduling function component through the visual scheduling task module.

2. The flexible configuration method for the medium and low voltage protection and monitoring device according to claim 1, characterized in that: The protection logic function module is used to perform online logic editing and modification, including comparison of magnitude values ​​and calculation of AND, OR, and NOT logic, based on the sampling, input, and output values ​​of the sampling matrix configuration module and the input / output signal matrix configuration module, to form protection logic elements with different functions.

3. The flexible configuration method for the medium and low voltage protection and monitoring device according to claim 1, characterized in that: The visual scheduling task module is used to flexibly add or remove protection function logic modules, manage the runtime sequence of different protection function modules, set the components such as protection functions, measurement and control functions and alarm functions, export scheduling task configuration files, and cooperate with the visual interface module in the application base program. The application base program instantiates the components and allocates code storage space according to the component name and running task level in the scheduling task configuration file, and runs the components in the corresponding task level.

4. A flexible configuration system for a medium- and low-voltage protection and monitoring device, employing the flexible configuration method for the medium- and low-voltage protection and monitoring device as described in claim 1, characterized in that, include: The sampling matrix configuration module is used to independently decompose the sampling function of the device, and is suitable for various AC input circuits; The input / output signal matrix configuration module is used to classify the device's input / output signals according to their application. The protection logic function module is used to perform online logic editing and modification, including comparison of magnitude values ​​and calculation of AND, OR, and NOT logic, based on the sampling, input, and output values ​​of the sampling matrix configuration module and the input / output signal matrix configuration module, to form protection logic elements with different functions. The automatic model generation module is used to generate communication model files for the 61850, which are used for the 61850 communication of the device. The visual scheduling task module is used to dynamically schedule the operation of each module.

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