New energy system wideband phasor data collection method and device and data concentrator

Abstract

This application relates to the field of new energy system technology, and in particular to a method, apparatus, and data concentrator for broadband phasor data aggregation in a new energy system. The method includes: receiving broadband phasor data from one or more devices transmitted by monitoring devices or other data concentrators at any substation in the new energy system; identifying the time information in the starting address of the broadband phasor data transmitted by each device; aligning and merging each broadband phasor data within the same time period based on the time information; determining a preset data frame format according to a preset protocol; packaging the merged data according to the preset data frame format to obtain packaged data; and sending the packaged data to one or more target master stations in the new energy system through an extended communication protocol. This solves the problems of related technologies where, with limited hardware computing resources, calculating and processing multiple broadband phasor information leads to data loss or device crashes, resulting in malfunctions.

Description

Technical Field

[0001] This application relates to the field of new energy system technology, and in particular to a method, device and data concentrator for broadband phasor data collection in new energy systems. Background Technology

[0002] In recent years, power systems have been gradually developing towards a higher proportion of new energy sources and power electronic equipment. The broadband oscillation problem caused by the interaction between new energy sources such as wind power and photovoltaics and the power grid has become increasingly prominent. To monitor the dynamic behavior of broadband oscillations, broadband oscillation monitoring devices have been developed to calculate, transmit, store, package, and send broadband phasors. However, unlike traditional phasor measurement units (PMUs), which only need to calculate and process a single fundamental phasor, broadband oscillation monitoring devices need to calculate and process multiple broadband phasor information, including fundamental, harmonic, and interharmonic signals. Moreover, new energy systems often require simultaneous monitoring of multiple lines. Given the limited hardware computing resources of broadband oscillation monitoring devices, data loss and even device crashes can occur during broadband phasor data storage. Summary of the Invention

[0003] This application provides a method for collecting broadband phasor data in a new energy system to solve the problems that related technologies, under the condition of limited hardware computing resources, need to calculate and process multiple broadband phasor information, which may lead to data packet loss or device crashes, thus preventing normal operation.

[0004] The first aspect of this application provides a method for collecting broadband phasor data in a new energy system. The method is applied to any data concentrator in the new energy system and includes the following steps: receiving one or more broadband phasor data sent by a monitoring device or other data concentrator of any substation in the new energy system; identifying the starting address of each quantity in each broadband phasor data; merging each broadband phasor data according to the starting address of each quantity; determining a preset data frame format according to a preset protocol; packaging the merged data according to the preset data frame format to obtain packaged data; and sending the packaged data to one or more target master stations in the new energy system.

[0005] Optionally, in one embodiment of this application, the step of merging each broadband phasor data according to the starting address of each quantity includes: matching the starting address of each quantity with a pre-established memory space in the data concentrator; merging each quantity in each broadband phasor data into the corresponding memory space to realize the aggregation of the broadband phasor data.

[0006] Optionally, in one embodiment of this application, before matching the pre-established memory space within the data concentrator according to the starting address of each quantity, the process includes: starting a command thread and a data thread, reading a data frame configuration file; calculating the actual capacity of the memory space according to the data frame configuration file, and establishing the memory space within the data concentrator based on the actual capacity.

[0007] Optionally, in one embodiment of this application, the broadband phasor data includes fundamental phasor data, harmonic phasor data, and interharmonic phasor data. The preset protocol is as follows: the phasors and analog quantities defined in the preset communication protocol are first extended, so that the preset communication protocol after the first extension supports the transmission of preset frequency phasor and analog quantity data, and the interharmonic phasor data is transmitted using the preset communication protocol after the first extension; the analog quantities defined in the preset communication protocol are second extended, so that the preset communication protocol after the second extension uploads modal data to the master station at preset time intervals, and the harmonic phasor data is transmitted using the preset communication protocol after the second extension.

[0008] Optionally, in one embodiment of this application, the data concentrator communicates with the monitoring device of any substation using a multi-threaded approach.

[0009] Optionally, in one embodiment of this application, the data concentrator is capable of storing, processing, and / or forwarding broadband oscillation information of a number of modes greater than or equal to a preset number.

[0010] A second aspect of this application provides a broadband phasor data aggregation device for a new energy system. The device is applied to any data concentrator within the new energy system and includes: a receiving module for receiving one or more broadband phasor data transmitted by a monitoring device or other data concentrator at any substation in the new energy system; a quantity processing module for identifying the starting address of each quantity in each broadband phasor data, merging the broadband phasor data according to the starting address of each quantity, determining a preset data frame format according to a preset protocol, and packaging the merged data according to the preset data frame format to obtain packaged data; and a data sending module for sending the packaged data to one or more target master stations in the new energy system.

[0011] Optionally, in one embodiment of this application, the quantity processing module is further configured to match the pre-established memory space within the data concentrator according to the starting address of each quantity; merge each quantity in each broadband phasor data into the corresponding memory space, thereby realizing the aggregation of the broadband phasor data.

[0012] Optionally, in one embodiment of this application, the quantity processing module is further configured to start a command thread and a data thread to read a data frame configuration file before matching the memory space pre-established in the data concentrator according to the starting address of each quantity; calculate the actual capacity of the memory space according to the data frame configuration file; and establish the memory space in the data concentrator based on the actual capacity.

[0013] Optionally, in one embodiment of this application, the broadband phasor data includes fundamental phasor data, harmonic phasor data, and interharmonic phasor data. The preset protocol is as follows: the phasors and analog quantities defined in the preset communication protocol are first extended, so that the preset communication protocol after the first extension supports the transmission of preset frequency phasor and analog quantity data, and the interharmonic phasor data is transmitted using the preset communication protocol after the first extension; the analog quantities defined in the preset communication protocol are second extended, so that the preset communication protocol after the second extension uploads modal data to the master station at preset time intervals, and the harmonic phasor data is transmitted using the preset communication protocol after the second extension.

[0014] Optionally, in one embodiment of this application, it further includes: a real-time library, used to receive the packaged data sent by the data processing module, so that the data sending module reads the packaged data from the real-time library.

[0015] Optionally, in one embodiment of this application, it further includes: a data storage module, used to read the packaged data, generate a storage file name according to the recorded time and site information, and write the packaged data into the storage file; and an offline module, used to read the storage file of the data storage module and send the storage file to the one or more target master stations via offline data transmission.

[0016] A third aspect of this application provides a data concentrator, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the broadband phasor data collection method for new energy systems as described in the above embodiments.

[0017] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the broadband phasor data collection method for new energy systems as described in the above embodiments.

[0018] Therefore, this application has at least the following beneficial effects:

[0019] By receiving broadband phasor data from oscillation monitoring devices or other data concentrators, and merging each broadband phasor data according to the starting address of each quantity in each data set, the data is packaged according to a specified data frame format and then sent to the main station in the new energy system. The data is then displayed on a monitor through an interface program. This process simultaneously performs broadband phasor data calculation and transmission, as well as data aggregation, storage, and display. Therefore, it solves the problems of related technologies where, with limited hardware computing resources, calculating and processing multiple broadband phasor information can lead to data loss or device crashes, thus preventing normal operation.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 This is a flowchart illustrating a broadband phasor data collection method for a new energy system according to an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of a broadband phasor data concentrator structure provided according to an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of a time alignment design according to an embodiment of this application;

[0025] Figure 4 This is a block diagram of a broadband phasor data collection device for a new energy system according to an embodiment of this application;

[0026] Figure 5 This is a schematic diagram of the structure of a data concentrator according to an embodiment of this application.

[0027] Explanation of reference numerals in the attached diagram: Receiver module-100, Quantity processing module-200, Data transmission module-300, Memory-501, Processor-502, Communication interface-503. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0029] The following description, with reference to the accompanying drawings, outlines a method, apparatus, data concentrator, and storage medium for collecting broadband phasor data in a new energy system according to embodiments of this application. Addressing the problems mentioned in the background section, this application provides a method for collecting broadband phasor data in a new energy system. In this method, broadband phasor data is received from an oscillation monitoring device or other data concentrator. Each broadband phasor data is merged based on the starting address of each quantity within it. The data is packaged according to a defined data frame format and then sent to the main station in the new energy system. The data is then displayed on a monitor through an interface display program. This method simultaneously performs broadband phasor data calculation and transmission, while also collecting, storing, and displaying the broadband phasor data. Therefore, it solves the problems in related technologies where, with limited hardware computing resources, calculating and processing multiple broadband phasor information can lead to data loss or device crashes, preventing normal operation.

[0030] Specifically, Figure 1 This is a flowchart illustrating a broadband phasor data collection method for a new energy system provided in an embodiment of this application.

[0031] like Figure 1 As shown, this broadband phasor data aggregation method for new energy systems is applied to any data concentrator in a new energy system, and includes the following steps:

[0032] In step S101, one or more broadband phasor data are received from the monitoring device or other data concentrator of any substation in the new energy system.

[0033] The broadband phasor data can include fundamental phasor data, harmonic phasor data, and interharmonic phasor data.

[0034] In related technologies, traditional phasor data concentrators are designed solely for fundamental phasor data and can only aggregate data from a single phasor. However, broadband data monitoring devices need to monitor fundamental, interharmonic, and harmonic phasors simultaneously, and multiple interharmonics and harmonics may exist in the power grid at the same time.

[0035] Therefore, traditional phasor data concentrators are not suitable for broadband phasor data; however, embodiments of this application can receive phasor data sent by broadband oscillation monitoring devices or other broadband phasor data concentrators within its jurisdiction, thereby realizing the collection, storage, display, forwarding and uploading of broadband phasor data.

[0036] In actual operation, the data concentrator communicates with the monitoring device of any substation using a multi-threaded approach to ensure accurate and timely reception. The wideband phasor data concentrator in this embodiment can communicate via TCP (Transmission Control Protocol), and its structure and workflow are as follows: Figure 2The data receiving module can establish communication with each monitoring device via TCP protocol and receive their configuration and data information. This data includes fundamental, harmonic, and interharmonic frequencies, which are then processed and stored in the corresponding location in the real-time library. The real-time library can employ shared memory technology, created according to the configuration file content and the time and device structure, to store the integrated system configuration and multi-section data. It can store broadband oscillation information for at least 10 modes, including at least the modal frequency, amplitude, and phase.

[0037] In step S102, the starting address of each quantity in each broadband phasor data is identified, the data of each broadband phasor data is merged according to the starting address of each quantity, and the preset data frame format is determined according to the preset protocol. The merged data is then packaged according to the preset data frame format to obtain packaged data.

[0038] Specifically, the embodiments of this application can calculate the starting address of each spatial data, obtain the starting addresses of the corresponding phasors, analog quantities, and switching quantities of the fundamental, harmonic, and interharmonic data through this starting address, obtain the data value through the starting address of each quantity, merge it into the corresponding memory block, and package the data according to the preset protocol and the specified data frame format.

[0039] In one embodiment of this application, the preset protocol is as follows: the phasors and analog quantities defined in the preset communication protocol are first extended, so that the first extended preset communication protocol supports the transmission of preset frequency phasor and analog quantity data, and the first extended preset communication protocol is used to transmit interharmonic phasor data; the analog quantities defined in the preset communication protocol are second extended, so that the second extended preset communication protocol uploads modal data to the master station at preset time intervals, and the second extended preset communication protocol is used to transmit harmonic phasor data.

[0040] The preset communication protocol can be GB / T 26865.2 communication protocol; the preset frequency can be 10Hz, 25Hz, 50Hz, or 100Hz; the preset duration can be 1 second or 2 seconds, etc., without specific limitations.

[0041] Taking GB / T 26865.2 as an example, it can be understood that the embodiments of this application can be extended based on GB / T 26865.2 to meet the requirements of broadband phasor transmission. For interharmonic phasor data transmission, the phasors and analog quantities defined in the original protocol are extended, supporting phasor and analog quantity data transmission at 10Hz, 25Hz, 50Hz, and 100Hz. For harmonic phasor data transmission, the analog quantities defined in the original protocol are extended, only sending modal data to the master station, allowing only one result to be sent per second for each mode.

[0042] In one embodiment of this application, data merging of each broadband phasor data according to the starting address of each quantity includes: matching the starting address of each quantity to a pre-established memory space in the data concentrator; merging each quantity in each broadband phasor data into the corresponding memory space to realize the aggregation of broadband phasor data.

[0043] The embodiments of this application can obtain the data value through the starting address of each quantity and merge it into the corresponding memory block to complete the collection of broadband phasor data for centralized processing, thus solving the problem of crash or data loss caused by data storage in broadband data monitoring devices of related technologies.

[0044] In step S103, the packaged data is sent to one or more target master stations in the new energy system.

[0045] In this embodiment of the application, after obtaining the packaged data, it can be sent to the main station, or a storage file name can be generated by recording the time and site information. The packaged data is stored in the file at preset time intervals, such as 1 minute or 2 minutes. After the data is stored locally, it can be sent to the main station. The data can be further extracted through the interface and displayed on the monitor through the interface display program to realize the display function.

[0046] In actual implementation, the embodiments of this application can extract configuration and data from the real-time library. The data includes fundamental phasor data, harmonic phasor data, and interharmonic phasor data. Connections are established with each master station and the configuration and data are uploaded. Each connection is implemented using a threaded approach.

[0047] It should be noted that the embodiments of this application also include pipeline design, including 1) a data flow pipeline, 2) a management pipeline, and 3) an offline data transmission pipeline, wherein,

[0048] 1) Data Flow Pipeline

[0049] Data can be synchronized in real time between the data concentrator and the master station, or between the phasor measurement device and the data concentrator. The data transmission direction is unidirectional, from the substation to the master station, or from the phasor measurement device to the data concentrator.

[0050] 2) Pipeline management

[0051] A transmission channel for managing commands, recording data, and configuring information between a data concentrator and a master station, or between a phasor measurement device and a data concentrator. Its data transmission direction is bidirectional.

[0052] 3) Offline data transmission pipeline

[0053] The offline data transmission pipeline is separate from the management pipeline and the data pipeline, and is an independent TCP connection. The information transmitted in the offline data transmission pipeline includes transmission command frames, event identifier frames, and offline data frames.

[0054] In one embodiment of this application, before matching the pre-established memory space within the data concentrator according to the starting address of each quantity, the process includes: starting a command thread and a data thread, reading a data frame configuration file; calculating the actual capacity of the memory space according to the data frame configuration file, and establishing the memory space within the data concentrator based on the actual capacity.

[0055] It is understood that, in this embodiment of the application, after the monitoring device (WPMU) of the subordinate connected substation sends data, the data concentrator (WPDC) starts the command thread and the data thread, reads the data frame configuration file, receives data, and calculates the actual capacity of the memory space according to the configuration frame size, thereby establishing the memory space in the data concentrator and realizing the storage of broadband phasor data.

[0056] In one embodiment of this application, the data concentrator is capable of storing, processing, and / or forwarding broadband oscillation information of a number of modes greater than or equal to a preset number.

[0057] The preset quantity can be set according to the actual situation, such as 10, without any specific limit.

[0058] Specifically, when connected to the main station in a dual-network manner, the embodiments of this application can repackage the phasor, analog, and switching data of the broadband oscillation data acquisition device according to the definition and send them to the main station system. The data concentrator can process and forward no less than a certain amount, such as broadband oscillation information of 10 modes.

[0059] In this embodiment of the application, the time alignment process is as follows: Figure 3 As shown, the monitoring device of the substation acquires the time t1 and maintains the time t2 itself. The time is synchronized once at the initial time. If the difference between the two is too large, the time is synchronized again.

[0060] The broadband phasor data aggregation method for new energy systems proposed in this application receives broadband phasor data sent by an oscillation monitoring device or other data concentrator. It merges each broadband phasor data based on the starting address of each quantity within it, packages the data according to a prescribed data frame format, and then sends it to the main station in the new energy system. The data is then displayed on a monitor through an interface display program. This method simultaneously performs broadband phasor data calculation and transmission, and also achieves broadband phasor data aggregation, storage, and display. Therefore, it solves the problems of related technologies where, with limited hardware computing resources, calculating and processing multiple broadband phasor information can lead to data loss or device crashes, preventing normal operation.

[0061] Secondly, referring to the accompanying drawings, an embodiment of this application provides a broadband phasor data aggregation device for a new energy system, which is applied to any data concentrator in a new energy system.

[0062] Figure 4 This is a block diagram of a broadband phasor data collection device for a new energy system according to an embodiment of this application.

[0063] like Figure 4 As shown, the broadband phasor data collection device 10 for the new energy system includes: a receiving module 100, a quantity processing module 200, and a data sending module 300.

[0064] The receiving module 100 is used to receive one or more broadband phasor data sent by the monitoring device or other data concentrator of any substation in the new energy system; the quantity processing module 200 is used to identify the starting address of each quantity in each broadband phasor data, merge each broadband phasor data according to the starting address of each quantity, determine the preset data frame format according to the preset protocol, and pack the merged data according to the preset data frame format to obtain packaged data; the data sending module 300 is used to send the packaged data to one or more target master stations in the new energy system.

[0065] In one embodiment of this application, the quantity processing module 300 is further configured to match the pre-established memory space within the data concentrator according to the starting address of each quantity; merge each quantity in each broadband phasor data into the corresponding memory space to realize the aggregation of broadband phasor data.

[0066] In one embodiment of this application, the quantity processing module 200 is further configured to start a command thread and a data thread to read a data frame configuration file before matching the pre-established memory space in the data concentrator according to the starting address of each quantity; calculate the actual capacity of the memory space according to the data frame configuration file; and establish the memory space in the data concentrator based on the actual capacity.

[0067] In one embodiment of this application, the broadband phasor data includes fundamental phasor data, harmonic phasor data, and interharmonic phasor data. The preset protocol is as follows: the phasors and analog quantities defined in the preset communication protocol are first extended, so that the preset communication protocol after the first extension supports the transmission of preset frequency phasor and analog quantity data, and the interharmonic phasor data is transmitted using the preset communication protocol after the first extension; the analog quantities defined in the preset communication protocol are second extended, so that the preset communication protocol after the second extension uploads modal data to the master station at preset time intervals, and the harmonic phasor data is transmitted using the preset communication protocol after the second extension.

[0068] In one embodiment of this application, the apparatus 10 further includes: a real-time library, configured to receive packaged data sent by the data processing module, so that the data sending module reads the packaged data from the real-time library.

[0069] In one embodiment of this application, the apparatus 10 further includes a data storage module and an offline module.

[0070] The data storage module is used to read the packaged data, generate a storage file name based on the recorded time and site information, and write the packaged data into the storage file; the offline module is used to read the storage file from the data storage module and send the storage file to one or more target master stations via offline data transmission.

[0071] It should be noted that the foregoing explanation of the embodiment of the broadband phasor data collection method for new energy systems also applies to the broadband phasor data collection device for new energy systems in this embodiment, and will not be repeated here.

[0072] The broadband phasor data aggregation device for a new energy system proposed in this application receives broadband phasor data sent by an oscillation monitoring device or other data concentrator. It merges the data of each broadband phasor data according to the starting address of each quantity in each data set, packages the data according to a specified data frame format, and then sends it to the main station in the new energy system. The data is then displayed on a monitor through an interface display program. This device simultaneously performs broadband phasor data calculation and transmission functions, as well as broadband phasor data aggregation, storage, and display. Therefore, it solves the problems of related technologies where, with limited hardware computing resources, calculating and processing multiple broadband phasor information can lead to data loss or device crashes, thus preventing normal operation.

[0073] Figure 5 A schematic diagram of the data concentrator provided in an embodiment of this application. The data concentrator may include:

[0074] The memory 501, the processor 502, and the computer program stored on the memory 501 and capable of running on the processor 502.

[0075] When the processor 502 executes the program, it implements the broadband phasor data collection method for new energy systems provided in the above embodiments.

[0076] Furthermore, the data concentrator also includes:

[0077] Communication interface 503 is used for communication between memory 501 and processor 502.

[0078] The memory 501 is used to store computer programs that can run on the processor 502.

[0079] The memory 501 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0080] If the memory 501, processor 502, and communication interface 503 are implemented independently, then the communication interface 503, memory 501, and processor 502 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0081] Optionally, in a specific implementation, if the memory 501, processor 502, and communication interface 503 are integrated on a single chip, then the memory 501, processor 502, and communication interface 503 can communicate with each other through an internal interface.

[0082] Processor 502 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of this application.

[0083] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for collecting broadband phasor data in a new energy system.

[0084] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0087] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0088] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0089] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A method for broadband phasor data collection in a new energy system, characterized in that, The method is applied to any data concentrator in a new energy system, and the method includes the following steps: Receive one or more broadband phasor data sent by the monitoring device or other data concentrator of any substation in the new energy system, wherein the broadband phasor data includes fundamental phasor data, harmonic phasor data and interharmonic phasor data; Identify the starting address of each quantity in each broadband phasor data, merge the broadband phasor data according to the starting address of each quantity, determine the preset data frame format according to the preset protocol, and package the merged data according to the preset data frame format to obtain packaged data. The preset protocol is as follows: firstly extend the phasors and analog quantities defined in the preset communication protocol so that the first extended preset communication protocol supports the transmission of preset frequency phasor and analog quantity data, and use the first extended preset communication protocol to transmit the interharmonic phasor data; secondly extend the analog quantities defined in the preset communication protocol so that the second extended preset communication protocol uploads modal data to the master station at preset time intervals, and use the second extended preset communication protocol to transmit the harmonic phasor data. The packaged data is sent to one or more target master stations in the new energy system.

2. The method according to claim 1, characterized in that, The step of merging the data of each broadband phasor based on the starting address of each quantity includes: Match the pre-established memory space within the data concentrator according to the starting address of each quantity; Each quantity in each broadband phasor data is merged into the corresponding memory space to achieve the aggregation of the broadband phasor data.

3. The method according to claim 2, characterized in that, Before matching the pre-established memory space within the data concentrator according to the starting address of each quantity, the process includes: Start the command thread and data thread, and read the data frame configuration file; The actual capacity of the memory space is calculated based on the data frame configuration file, and the memory space is established within the data concentrator based on the actual capacity.

4. The method according to claim 1, characterized in that, The data concentrator communicates with the monitoring device of any substation using a multi-threaded approach.

5. The method according to claim 1, characterized in that, The data concentrator is capable of storing, processing, and / or forwarding broadband oscillation information of a preset number of modes.

6. A broadband phasor data collection device for a new energy system, characterized in that, The device is applied to any data concentrator in a new energy system, wherein the device includes: The receiving module is used to receive one or more broadband phasor data sent by the monitoring device or other data concentrator of any substation in the new energy system, wherein the broadband phasor data includes fundamental phasor data, harmonic phasor data and interharmonic phasor data; The quantity processing module is used to identify the starting address of each quantity in each broadband phasor data, merge the data of each broadband phasor data according to the starting address of each quantity, determine the preset data frame format according to the preset protocol, and package the merged data according to the preset data frame format to obtain packaged data. The preset protocol is as follows: a first extension is performed on the phasors and analog quantities defined in the preset communication protocol, so that the first extended preset communication protocol supports the transmission of preset frequency phasor and analog quantity data, and the interharmonic phasor data is transmitted using the first extended preset communication protocol; a second extension is performed on the analog quantities defined in the preset communication protocol, so that the second extended preset communication protocol uploads modal data to the master station at preset time intervals, and the harmonic phasor data is transmitted using the second extended preset communication protocol. The data sending module is used to send the packaged data to one or more target master stations in the new energy system.

7. The apparatus according to claim 6, characterized in that, Also includes: A real-time library is used to receive the packaged data sent by the quantity processing module, so that the data sending module reads the packaged data from the real-time library; The data storage module is used to read the packaged data, generate a storage file name based on the recorded time and site information, and write the packaged data into the storage file; The offline module is used to read the stored files of the data storage module and send the stored files to the one or more target master stations via offline data transmission.

8. A data concentrator, characterized in that, include: The system includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the broadband phasor data collection method for a new energy system as described in any one of claims 1-5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the broadband phasor data collection method for new energy systems as described in any one of claims 1-5.

Images