An electric power simulation data conversion device management system

Abstract

The application discloses a kind of electric power simulation data conversion device management system, the electric power simulation data conversion device connection information management background of the present application, real-time digital simulation unit and control device, the interactive information of real-time digital simulation unit and control device is shown to information management background, the communication state information between electric power simulation data conversion device and real-time digital simulation unit, electric power simulation data conversion device ontology information, realize the centralized management and information monitoring of electric power simulation data conversion device, can quickly exclude the electric power simulation data conversion device that data interaction appears abnormal or fault, greatly improve experimental efficiency;And the information management background of the present application can issue debugging data test electric power simulation data conversion device data interaction accuracy, improve the debugging efficiency of electric power simulation data conversion device.

Description

Technical Field

[0001] This invention relates to a power simulation data conversion device management system, belonging to the field of power system and automation technology. Background Technology

[0002] Hardware-in-the-loop simulation is the most important and effective technical means to verify the function of control devices. The power simulation data conversion device is the hub connecting the real-time digital simulator and the control device, and is responsible for the data interaction between the two. The content mainly includes the voltage, current, and switch status signals output by the real-time digital simulator and the action signals output by the control device.

[0003] Existing power simulation data conversion devices only support judging the data interaction status through LED alarm lights, and debugging is extremely inconvenient. A hardware-in-the-loop experimental platform needs to be built to test the correctness of the data interaction. Taking the hardware-in-the-loop simulation experiment of the power grid safety and stability control system as an example, due to the large number of participating devices, a large number of power simulation data conversion devices are required to meet the sampling needs. During the experiment, for ease of wiring, the power simulation data conversion devices are installed together with the control device's I / O chassis on the I / O rack. Because the data conversion interface devices are distributed, when the data interaction of a certain device is abnormal or malfunctioning, troubleshooting can only be done by checking each link of the data interaction one by one, greatly reducing experimental efficiency. Summary of the Invention

[0004] This invention provides a power simulation data conversion device management system, which solves the problems disclosed in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A power simulation data conversion device management system includes an information management backend and several power simulation data conversion devices connected to the information management backend. The power simulation data conversion devices are externally connected to a real-time digital simulation unit and a control device.

[0007] During operation, the power simulation data conversion device processes and forwards the information exchanged between the real-time digital simulation unit and the control device. The power simulation data conversion device stores the processed interaction information and sends the interaction information, communication status information, and device information to the information management backend using a data subscription method. The information management backend stores and displays the received information, realizing centralized management and information monitoring of the power simulation data conversion device. Among them, the communication status information is the communication protocol transmission status information between the power simulation data conversion device and the real-time digital simulation unit, and the device information is the power simulation data conversion device itself.

[0008] During the debugging phase, the information management backend configures the debugging data and sends the configured debugging data to the power simulation data conversion device. The power simulation data conversion device processes the debugging data and stores the processed debugging data. The power simulation data conversion device sends the stored processed debugging data back to the information management backend using a data subscription method. The information management backend stores and displays the received data. The power simulation data conversion device sends the processed debugging data to the control device, comparing the data received by the information management backend and the data received by the control device to achieve closed-loop debugging of the power simulation data conversion device. Among them, the debugging data is used to simulate the data output by the real-time simulation unit.

[0009] The power simulation data conversion device includes an FPGA platform and an ARM processor;

[0010] The FPGA platform includes a communication protocol encoding / decoding module, a data processing module, a digital-to-analog conversion module, and a digital signal processing module connected in sequence. The communication protocol encoding / decoding module is connected to a real-time digital simulation unit. The digital-to-analog conversion module and the digital signal processing module are connected to control devices. The data processing module and the ARM processor are connected by configuration registers and status registers. The ARM processor is connected to the information management backend.

[0011] During the operation phase, the working process of the power simulation data conversion device is as follows:

[0012] The communication protocol encoding and decoding module receives simulation information sent by the real-time digital simulation unit, parses the simulation information, and sends the parsed information to the data processing module. The data processing module integrates the parsed information, stores the integrated information in the status register, and sends the adaptation part of the parsed information to the digital-to-analog conversion module and the switch quantity processing module. The digital-to-analog conversion module and the switch quantity processing module convert the received information into information that the control device can recognize, and send the converted information to the control device.

[0013] The data processing module receives the switch control information sent by the control device through the switch signal processing module, converts the switch control information into the information required by the communication protocol encoding / decoding module and the status register, stores the converted information in the status register, and sends it to the communication protocol encoding / decoding module; the communication protocol encoding / decoding module encodes the converted information and sends the encoded information to the real-time digital simulation unit.

[0014] The ARM processor uses a data subscription method to send the interaction information, communication status information and device body information in the status register to the information management background.

[0015] During the operational phase, the workflow of the information management backend is as follows:

[0016] The information management backend receives information sent by the simulation data conversion device and categorizes and stores the received information.

[0017] When information monitoring is initiated, the stored interactive information, communication status information, and device body information are displayed to realize information monitoring of the power simulation data conversion device.

[0018] When starting centralized management of the device, the device number or IP address of the power simulation data conversion device can be used to view the software and hardware version number, clock synchronization and operation status of the corresponding power simulation data conversion device, so as to realize centralized management of the power simulation data conversion device.

[0019] During the debugging phase, the workflow of the information management backend is as follows:

[0020] The information management backend configures the debugging data according to the selected power simulation data conversion device to be debugged, and sends the configured debugging data to the power simulation data conversion device;

[0021] The information management backend receives the simulation data conversion device after processing and debugging, and then classifies and stores the received data.

[0022] When information monitoring is started, the stored processed debugging data will be displayed.

[0023] During the commissioning phase, the operation process of the power simulation data conversion device is as follows:

[0024] The ARM processor of the power simulation data conversion device receives debugging data, converts the debugging data into data that the data processing module can recognize, and stores it in the configuration register;

[0025] The data processing module reads the converted debug data from the configuration register, performs format processing on the converted debug data, and stores the formatted debug data in the status register.

[0026] The digital input processing module and the digital-to-analog conversion module convert the formatted debugging data into data that the control device can recognize, and then send it to the control device.

[0027] ARM uses a data subscription method to send the formatted debug data in the status register to the information management backend.

[0028] The beneficial effects achieved by this invention are as follows: The power simulation data conversion device of this invention connects an information management backend, a real-time digital simulation unit, and a control device. The information management backend displays the interaction information between the real-time digital simulation unit and the control device, the communication status information between the power simulation data conversion device and the real-time digital simulation unit, and the information of the power simulation data conversion device itself. This enables centralized management and information monitoring of the power simulation data conversion device, and can quickly eliminate power simulation data conversion devices with abnormal or faulty data interaction, greatly improving experimental efficiency. Furthermore, the information management backend of this invention can test the accuracy of data interaction of the power simulation data conversion device by issuing debugging data, thus improving the debugging efficiency of the power simulation data conversion device. Attached Figure Description

[0029] Figure 1 This is a structural block diagram of the management system of the present invention;

[0030] Figure 2 This is a structural block diagram of a power simulation data conversion device;

[0031] Figure 3 A flowchart for the information monitoring method;

[0032] Figure 4 This is a flowchart of the debugging method. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0034] like Figure 1 As shown, the power simulation data conversion management system includes an information management backend and several power simulation data conversion devices connected to the information management backend. The power simulation data conversion devices are externally connected to a real-time digital simulation unit and a control device.

[0035] During operation, the power simulation data conversion device processes and forwards the information exchanged between the real-time digital simulation unit and the control device. The power simulation data conversion device stores the processed interaction information and sends the interaction information, communication status information, and device information to the information management backend via data subscription. The information management backend stores and displays the received information, realizing centralized management and information monitoring of the power simulation data conversion device. Among them, the interaction information consists of analog and digital quantities between the real-time digital simulation unit and the control device; the communication status information consists of the communication protocol transmission status information between the power simulation data conversion device and the real-time digital simulation unit; and the device information consists of the power simulation data conversion device itself, namely, the IP address, software and hardware version, etc.

[0036] During the debugging phase, the information management backend configures the debugging data and sends the configured debugging data to the power simulation data conversion device. The power simulation data conversion device processes the debugging data and stores the processed debugging data. The power simulation data conversion device sends the stored processed debugging data back to the information management backend using a data subscription method. The information management backend stores and displays the received data. The power simulation data conversion device sends the processed debugging data to the control device. The data received by the information management backend and the data received by the control device are manually compared to achieve closed-loop debugging of the power simulation data conversion device. The debugging data is used to simulate the data output by the real-time simulation unit.

[0037] The power simulation data conversion device of the above system is connected to the information management backend, the real-time digital simulation unit, and the control device. The information management backend displays the interaction information between the real-time digital simulation unit and the control device, the communication status information between the power simulation data conversion device and the real-time digital simulation unit, and the information of the power simulation data conversion device itself, realizing the monitoring of power simulation data. When an abnormality or fault occurs in the data interaction of a certain device, it can be quickly troubleshooted, greatly improving the experimental efficiency. Furthermore, the information management backend of the above system can debug the power simulation data conversion device by issuing debugging data, improving the debugging efficiency of the power simulation data conversion device.

[0038] In general, the information management backend is used to collect, store, and display the analog, digital, communication status, and device information transmitted by the power simulation data conversion device, enabling real-time monitoring of the power simulation data conversion device's abnormal status diagnosis and signal processing. It also has customizable configuration functions for analog and digital quantities, i.e., debugging data configuration, and can form a closed-loop test environment with the power simulation data conversion device and control device to achieve closed-loop debugging of the power simulation data conversion device.

[0039] The information management backend includes a database, application function modules, and a human-computer interaction interface; among them, the application function modules mainly include data configuration functions, information monitoring functions, and centralized device management functions.

[0040] The data configuration function is used for debugging the power simulation data conversion device. It can configure debugging data according to the transmission channel configuration data, and then send it to the power simulation data conversion device via Ethernet. It is equivalent to simulating the output data of the real-time digital simulation unit and can support sending data to multiple power simulation data conversion devices at the same time.

[0041] The information monitoring function is used to display in real time the analog quantities, switch quantities, communication status information, and device information transmitted by the power simulation data conversion device.

[0042] The centralized management function of the device is used for the management of the software and hardware version number of the power simulation data conversion device, clock synchronization management, and handling of anomalies or faults (i.e., operating status). It supports the rapid switching of devices using numbers or IP addresses.

[0043] like Figure 2 As shown, the power simulation data conversion device includes an FPGA platform and an ARM processor.

[0044] The FPGA platform includes a communication protocol encoding / decoding module, a data processing module, a digital-to-analog conversion module, and a digital signal processing module connected in sequence. The communication protocol encoding / decoding module is connected to a real-time digital simulation unit. The digital-to-analog conversion module and the digital signal processing module are connected to control devices. The data processing module and the ARM processor are connected by configuration registers and status registers. The ARM processor is connected to the information management backend.

[0045] The status register includes an alarm unit with two LEDs indicating "Run" and "Fault". The communication protocol encoding / decoding module has an optical transceiver interface, connected to a real-time digital simulation unit via fiber optic cable. The digital-to-analog converter module has 56 analog output interfaces, connected to the control device via wires. The digital-to-digital converter module has 72 output interfaces and 36 input interfaces, connected to the control device via wires.

[0046] One power simulation data conversion device can connect to multiple control devices; when the data interaction demand exceeds the capacity of one power simulation data conversion device, multiple devices can be configured for parallel transmission.

[0047] The ARM processor interacts with the configuration register via the AXI bus to debug data, and with the status register to exchange analog quantities, switch quantities, communication status information, and device information transmitted by the power simulation data conversion device. To meet the requirements of high-speed transmission of large amounts of data, the ARM processor is equipped with a gigabit Ethernet port, which connects to the information management backend via a network cable.

[0048] The process for monitoring the above system information is as follows: Figure 3 As shown, it includes:

[0049] Step 1: The real-time digital simulation unit sends information to the control device. The specific process is as follows:

[0050] 11) The real-time digital simulation unit sends simulation information to the power simulation data conversion device via optical fiber using an agreed communication protocol. Specifically, the information includes analog quantities, switch quantities, and communication status information (including communication clock status, frame sequence number, frame sequence number status, transmission frame status, connection status, and hardware and software operating status).

[0051] 12) The communication protocol encoding and decoding module receives the simulation information sent by the real-time digital simulation unit, parses the simulation information, and sends the parsed information (data groups constructed from analog and digital quantities, communication status information) to the data processing module.

[0052] 13) The data processing module integrates the data group and communication status information, and stores the integrated information in the status register; at the same time, it sends the adaptation part of the parsed information to the analog-to-digital conversion module and the digital quantity processing module. That is, the data processing module distributes the analog quantity to the analog-to-digital conversion module and the digital quantity to the digital quantity processing module according to the mapping relationship between each data in the data group and the output interface.

[0053] 14) The digital-to-analog conversion module converts the received information, specifically converting the received information into secondary values ​​of current and voltage signals that the control device can recognize;

[0054] The switch quantity processing module converts the received information, specifically converting the received information into switch position information that the control device can recognize;

[0055] 15) After receiving the secondary values ​​of current and voltage signals through the wires, the control device needs to set the corresponding transformation ratio to convert the secondary values ​​into primary values. The control device identifies the operating status of the acquired components based on the primary values ​​of current and voltage signals and the switch position information.

[0056] Step 2: The control device sends switching signals to the real-time digital simulation unit. The specific process is as follows:

[0057] 21) The control device takes different control measures according to different faults in the power grid and sends switching control information such as generator tripping and load shedding to the power simulation data conversion device;

[0058] 22) The switch quantity processing module receives the switch quantity control information sent by the control device, processes the information, and sends it to the data processing module;

[0059] 23) The data processing module converts the switch control information into the information required by the communication protocol encoding / decoding module and the status register. Specifically, it converts the information into an array, stores the converted information in the status register, and sends it to the communication protocol encoding / decoding module.

[0060] 24) The communication protocol encoding and decoding module encodes the converted information according to the agreed protocol and sends the encoded information to the real-time digital simulation unit;

[0061] 25) The real-time digital simulation unit receives the encoded information through optical fiber, parses the information, and introduces the switch control information into the corresponding simulation model.

[0062] Step 3: For the power simulation data conversion device information (IP, software and hardware version, etc.), the data is stored by directly writing it into the status register.

[0063] Step 4: The ARM uses the AXI bus to subscribe to the processed interactive information, communication status information and device information in the status register, and packages them according to the agreed communication protocol. The package is then sent to the information management backend via Gigabit Ethernet.

[0064] Step 5: The information management backend receives the information (i.e., data packets) sent by the simulation data conversion device and categorizes and stores the received information in the database.

[0065] Step 6: When starting information monitoring, read the stored interaction information from the database;

[0066] Step 7: Use the human-machine interface to display the stored interactive information, that is, display the analog quantity, switch quantity, communication status information, and device body information, so as to realize the information monitoring of the power simulation data conversion device.

[0067] Step 8: When starting centralized management of the device, the stored device information can be displayed by changing the device number or IP address of the power simulation data conversion device. This allows users to view the hardware and software version number, clock synchronization, and operating status of the power simulation data conversion device, thereby achieving centralized management of the power simulation data conversion device.

[0068] The debugging process for the above system is as follows: Figure 3 As shown, it includes:

[0069] Step 1: Construct a closed-loop debugging environment by connecting several power simulation data conversion devices to the information management backend via Ethernet, and connecting the power simulation data conversion devices to the control device via wires.

[0070] Step 2: Select the power simulation data conversion device to be debugged. You can start centralized management through the human-computer interaction interface of the information management backend, enter the number or IP address of the power simulation data conversion device to be debugged and select it.

[0071] Step 3: The information management backend configures the debugging data according to the selected power simulation data conversion device and transmission channel to be debugged, with analog and digital channels configured separately.

[0072] Step 4: Data distribution, i.e., the information management backend sends the debugging data to the power simulation data conversion device to be debugged via Ethernet;

[0073] Step 5: The ARM processor of the power simulation data conversion device receives the debugging data and converts it into data that the data processing module can recognize, specifically into data groups, and stores the converted debugging data in the configuration register.

[0074] Step 6: The data processing module reads the converted data group from the configuration register, performs format processing on the data group, stores the formatted data group in the status register, and distributes the data to the corresponding input ports of the digital-to-analog conversion module and the digital quantity processing module according to the mapping relationship between each data in the data group and the output interface.

[0075] Step 7: The switch quantity processing module and the digital-to-analog conversion module convert the formatted debugging data into data that the control device can recognize and send it to the control device; that is, after receiving the corresponding data, the digital-to-analog conversion module converts it into the secondary values ​​of current and voltage signals that the control device can recognize and then outputs it; after receiving the corresponding data, the switch quantity processing module converts it into the switch position signal that the control device can recognize and then outputs it.

[0076] The ARM processor sends the formatted debug data in the status register to the information management backend via the AXI bus using a data subscription method.

[0077] Step 8: After receiving the secondary values ​​of current and voltage signals through the wires, the control device needs to set the corresponding transformation ratio to convert the secondary values ​​into primary values, and view the current and voltage data on the control device or through the centralized management system of the control device; the information management background receives the processed debugging data of the simulation data conversion device, classifies and stores the received data, and displays the stored processed debugging data when information monitoring is started; the data received by the information management background and the data received by the control device are manually compared to complete the closed-loop debugging of the power simulation data conversion device.

[0078] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A power simulation data conversion device management system, characterized in that, It includes an information management backend and several power simulation data conversion devices connected to the information management backend. The power simulation data conversion devices are externally connected to a real-time digital simulation unit and a control device. During operation, the power simulation data conversion device processes and forwards the information exchanged between the real-time digital simulation unit and the control device. The power simulation data conversion device stores the processed interaction information and sends the interaction information, communication status information and device information to the information management backend through data subscription. The information management backend stores and displays the received information, realizing centralized management and information monitoring of the power simulation data conversion device; among them, the communication status information is the communication protocol transmission status information between the power simulation data conversion device and the real-time digital simulation unit, and the device body information is the power simulation data conversion device body information. During the debugging phase, the information management backend configures the debugging data and sends the configured debugging data to the power simulation data conversion device. The power simulation data conversion device processes the debugging data and stores the processed debugging data. The power simulation data conversion device sends the stored processed debugging data back to the information management backend using a data subscription method. The information management backend stores and displays the received data. The power simulation data conversion device sends the processed debugging data to the control device, comparing the data received by the information management backend and the data received by the control device to achieve closed-loop debugging of the power simulation data conversion device. Among them, the debugging data is used to simulate the data output by the real-time simulation unit.

2. The power simulation data conversion device management system according to claim 1, characterized in that, The power simulation data conversion device includes an FPGA platform and an ARM processor; The FPGA platform includes a communication protocol encoding / decoding module, a data processing module, a digital-to-analog conversion module, and a digital signal processing module connected in sequence. The communication protocol encoding / decoding module is connected to a real-time digital simulation unit. The digital-to-analog conversion module and the digital signal processing module are connected to control devices. The data processing module and the ARM processor are connected by configuration registers and status registers. The ARM processor is connected to the information management backend.

3. The power simulation data conversion device management system according to claim 2, characterized in that, During the operation phase, the working process of the power simulation data conversion device is as follows: The communication protocol encoding and decoding module receives simulation information sent by the real-time digital simulation unit, parses the simulation information, and sends the parsed information to the data processing module. The data processing module integrates the parsed information, stores the integrated information in the status register, and sends the adapted part of the parsed information to the digital-to-analog conversion module and the switch quantity processing module. The digital-to-analog conversion module and the digital input / output processing module convert the received information into information that the control device can recognize, and then send the converted information to the control device. The data processing module receives the switch control information sent by the control device through the switch control module, converts the switch control information into the information required by the communication protocol encoding and decoding module and the status register, stores the converted information in the status register, and sends it to the communication protocol encoding and decoding module. The communication protocol encoding and decoding module encodes the converted information and sends the encoded information to the real-time digital simulation unit; The ARM processor uses a data subscription method to send the interaction information, communication status information and device body information in the status register to the information management background.

4. The power simulation data conversion device management system according to claim 2, characterized in that, During the operational phase, the workflow of the information management backend is as follows: The information management backend receives information sent by the simulation data conversion device and categorizes and stores the received information. When information monitoring is initiated, the stored interactive information, communication status information, and device body information are displayed to realize information monitoring of the power simulation data conversion device. When starting centralized management of the device, the device number or IP address of the power simulation data conversion device can be used to view the software and hardware version number, clock synchronization and operation status of the corresponding power simulation data conversion device, so as to realize centralized management of the power simulation data conversion device.

5. The power simulation data conversion device management system according to claim 2, characterized in that, During the debugging phase, the workflow of the information management backend is as follows: The information management backend configures the debugging data according to the selected power simulation data conversion device to be debugged, and sends the configured debugging data to the power simulation data conversion device; The information management backend receives the simulation data conversion device after processing and debugging, and then classifies and stores the received data. When information monitoring is started, the stored processed debugging data will be displayed.

6. The power simulation data conversion device management system according to claim 2, characterized in that, During the commissioning phase, the operation process of the power simulation data conversion device is as follows: The ARM processor of the power simulation data conversion device receives debugging data, converts the debugging data into data that the data processing module can recognize, and stores it in the configuration register; The data processing module reads the converted debug data from the configuration register, performs format processing on the converted debug data, and stores the formatted debug data in the status register. The digital input processing module and the digital-to-analog conversion module convert the formatted debugging data into data that the control device can recognize, and then send it to the control device. ARM uses a data subscription method to send the formatted debug data in the status register to the information management backend.

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