New energy station panoramic monitoring system, communication configuration method and test point method

Abstract

The present application belongs to the field of new energy power generation technology, and particularly relates to a new energy station panoramic monitoring system, a communication configuration method and a test point method. The method first exports a CCD file and a CID file commonly used by all source control terminals in the panoramic monitoring system from an SCD of the panoramic monitoring system; then modifies GOOSE parameter configurations in the commonly used CCD file according to a terminal number set on the source control terminal and a physical optical port value of the new energy centralized control device to which the source control terminal belongs set on the new energy centralized control device, and modifies MMS parameter configurations in the commonly used CID file according to an IP address set on the source control terminal, so as to complete communication configuration of the new energy station panoramic monitoring system. The present application only needs to set the source control terminal number, IP and the physical optical port of the new energy centralized control device to which the source control terminal belongs, so as to complete automatic association of the CCD and the CID, improve engineering debugging speed and ensure debugging accuracy.

Description

Technical Field

[0001] This invention belongs to the field of new energy power generation technology, specifically relating to a panoramic monitoring system for new energy power plants, a communication configuration method, and a test point method. Background Technology

[0002] As the proportion of new energy sources in the power grid gradually increases, traditional monitoring and sensing methods for new energy are insufficient, and control methods are crude. They cannot achieve full-process status perception of new energy sources before, during, and after a fault, nor can they accurately count and monitor controllable new energy resources or conduct lean control over each power generation unit. This makes it difficult to meet the safety and stability control requirements of a power grid with a high proportion of new energy. The management and control level of new energy power generation urgently needs to be improved, and there is a pressing need to adopt panoramic monitoring technology for new energy to enhance the perception and control capabilities of new energy power plants during fault processes.

[0003] The panoramic monitoring system for renewable energy power plants includes a power plant-side safety and stability control device, a centralized renewable energy control device, an oscillation monitoring substation device, a power plant network layer, and a source control terminal. The devices at each layer are connected via fiber optic cables, Ethernet, and other channels. The panoramic monitoring system is interconnected with the grid-side stability control system. Utilizing the existing communication network of the renewable energy power plant, the panoramic monitoring system enables millisecond-level rapid adjustment and precise emergency control of photovoltaic inverters, wind turbines, and other control equipment. Simultaneously, the stability control master station combines frequency information and the total amount of renewable energy disconnected from the grid to determine whether control measures are necessary, improving the safety and stability level of the power system when encountering large disturbances. The panoramic monitoring system not only helps ensure the safe and stable operation of the power grid but also reduces the difficulty of reconnecting renewable energy power plants to the grid, minimizing the impact of grid failures on society.

[0004] To achieve panoramic monitoring of renewable energy power plants, source control terminals need to be installed on the wind turbine / inverter side. These terminals use the IEC104 protocol for fast communication with the inverter downstream, and a shared port for both GOOSE and MMS ring network transmission upstream. The GOOSE ring network communicates with the centralized renewable energy control device, while the MMS ring network communicates with the oscillation monitoring substation. A single ring network port enables communication with both the centralized control device and the oscillation monitoring substation, reducing multiple network setups and fiber optic cable investment. Depending on the scale of the wind farm or solar power plant, dozens or even hundreds of source control terminals are typically required for a panoramic monitoring system at each plant.

[0005] Because the source control terminal uses ring network GOOSE and MMS transmission, engineers need to configure the source control terminal devices, new energy centralized control devices, and vibration monitoring substation devices to adapt to the actual needs of the site. Generally, engineers associate the virtual terminals of the IED model of each device using SCD files, and then perform whole-site configuration. Furthermore, since the scale of new energy substations varies, the number of source control terminal devices used also varies. Therefore, each project requires SCD file configuration, and the CCD and CID files used by the devices must be exported and downloaded to each device for GOOSE and MMS communication. Since each source control terminal is installed in a distributed manner, this method is cumbersome, inefficient, and overly reliant on the manufacturer's commissioning personnel. At the same time, when a problem occurs with a device already in use, a power outage is required for replacement and downloading the on-site configuration for testing, which also brings many inconveniences to substation operation and maintenance.

[0006] In addition, since each terminal is installed in a distributed manner according to the location of the transformer substation and inside the wind turbine tower, and each source control terminal is far apart, the new energy centralized control device and the oscillation monitoring substation device are generally installed in a small room. The new energy centralized control device and the oscillation monitoring substation device need to be interconnected and communicate with dozens or even hundreds of source control terminals, which will cause inconvenience to the commissioning. The general method of on-site engineering commissioning is to use portable testing instruments to test the source control terminals, which is not very convenient for commissioning. Furthermore, commissioning personnel are required on both the source control terminal side and the protection room, which wastes a lot of manpower and resources. Summary of the Invention

[0007] The purpose of this invention is to provide a panoramic monitoring system and communication configuration method for new energy power stations, so as to solve the problems of cumbersome operation and low efficiency of existing communication configuration methods. The purpose of this invention is also to provide a test point-to-point method for the panoramic monitoring system of new energy power stations, so as to solve the problem of inconvenient debugging caused by the use of test instruments for additional debugging in existing technologies.

[0008] To address the aforementioned technical problems, this invention provides a panoramic monitoring system for new energy power plants, comprising a centralized control device for new energy, an oscillation monitoring substation, multiple ring networks, and multiple source control terminals. Each ring network uses GOOSE and MMS for common port transmission. The multiple source control terminals are divided into multiple groups, with each group of source control terminals connected to one ring network. The ring network GOOSE communicates with the centralized control device for new energy, and the ring network MMS communicates with the oscillation monitoring substation. All source control terminals share CCD and CID files exported from the SCD file of the panoramic monitoring system for new energy power plants. When configuring the monitoring system communication, the source control terminals are used to adjust the terminal number and IP address to modify the GOOSE parameter configuration in the shared CCD file, and to adjust the IP address to modify the MMS parameter configuration in the shared CID file. The centralized control device for new energy is used to adjust the physical optical port settings of the centralized control device to which the source control terminal belongs to modify the GOOSE parameter configuration in the shared CCD file when configuring the monitoring system communication.

[0009] The beneficial effects are as follows: The panoramic monitoring system for new energy power stations of the present invention includes a centralized control device for new energy, multiple ring networks, and multiple source control terminals. Firstly, each ring network uses GOOSE and MMS for common port transmission. Multiple source control terminals are divided into multiple groups, with each group connected to a single ring network. This method reduces multiple network setups at the power station side, reducing fiber optic cable costs and investment. Secondly, during communication configuration, all source control terminals share a single CCD and CID file. Based on the terminal number, IP address, and physical optical port configured on the centralized control device, the system automatically modifies the GOOSE parameter configuration in the CCD file and the MMS parameter configuration in the CID file. This eliminates the need for engineering commissioning personnel to configure GOOSE virtual terminal connections, preventing errors. Commissioning personnel no longer need to maintain CCD and CID files; they only need to set the source control terminal number, IP address, and the physical optical port of the centralized control device to which the source control terminal belongs to complete the automatic association of CCD and CID, improving commissioning speed and ensuring commissioning accuracy.

[0010] Furthermore, after setting the terminal number, the GOOSE APPID, IEDname, destination MAC address, and source MAC address need to be updated according to the set terminal number.

[0011] Furthermore, the source control terminal includes a source control terminal interface module, a source control terminal application module, a source control terminal platform module, and a source control terminal communication module. The source control terminal interface module is used to implement human-machine interaction, setting a unique terminal number for each source control terminal and an IP address set according to the source control terminal IP assigned by the oscillation monitoring substation device. The source control terminal application module is used to read the set terminal number and generate a file storing the terminal number, and also to read the set IP address and generate a file storing the IP address. The source control terminal platform module is used to modify the GOOSE APPID, IEDname, and destination MAC address in the CCD file according to the terminal number recorded in the file when parsing the CCD file, and to modify the source MAC address in the Ethernet configuration file, and to modify the IP information in the CCD file according to the IP address in the file. The source control terminal communication module is used to implement ring network communication.

[0012] Its beneficial effects are as follows: The source control terminal is equipped with different modules, and each module works together to quickly set the terminal number and IP address, thereby achieving the purpose of modifying the GOOSE parameter configuration in the CCD file and the MMS parameter configuration in the CID file.

[0013] Furthermore, the new energy centralized control device includes a new energy centralized control device interface module, a new energy centralized control device application module, a new energy centralized control device platform module, and a new energy centralized control device communication module. The new energy centralized control device interface module is used to realize human-computer interaction to set the physical optical port settings of the new energy centralized control device to which the source control terminal belongs. The new energy centralized control device application module is used to read the set physical optical port settings and generate a file storing the physical optical port settings. The new energy centralized control device platform module is used to modify the physical optical port information in the CCD file according to the physical optical port settings in the file when parsing the CCD file. The new energy centralized control device communication module is used for communication.

[0014] Its beneficial effects are as follows: The new energy centralized control device is equipped with different modules, and each module works together to quickly adjust the physical optical port of the new energy centralized control device to which the source control terminal belongs, so as to achieve the purpose of modifying the GOOSE parameter configuration in the CCD file.

[0015] Furthermore, the new energy centralized control device is also used to trigger analog quantity test pairing and / or status quantity test pairing for each source control terminal, and receive the test pairing results returned by each source control terminal; the source control terminal is also used to refresh and set the analog quantity data and / or status quantity data of the source control terminal in a set order after receiving the trigger status of analog quantity test pairing and / or status quantity test pairing, and return the test pairing results to the new energy centralized control device. After the pairing is completed, the state of the source control terminal automatically switches to collecting real analog quantity and / or status quantity.

[0016] Its beneficial effects are as follows: by operating each source control terminal on the new energy centralized control device in the protection room, the analog quantity test point and status quantity test point functions between the source control terminal and the new energy centralized control device and the oscillation monitoring substation device can be completed. After the set time is up, it can automatically restore to the true value, avoiding the error risk caused by forgetting to exit the test mode when manually entering it, improving the efficiency of test work, overcoming the inconvenience of carrying test instruments on site, and saving the debugging personnel from running back and forth between different source control terminals and testing.

[0017] Furthermore, the setting time is 5 to 12 seconds.

[0018] Its beneficial effect is that the setting time can be flexibly set.

[0019] To address the aforementioned technical problems, this invention also provides a communication configuration method for a panoramic monitoring system for new energy power stations, comprising the following steps:

[0020] 1) Export the CCD and CID files shared by all source control terminals in the monitoring system from the SCD of the monitoring system;

[0021] 2) Modify the GOOSE parameter configuration in the shared CCD file according to the terminal number set on the source control terminal and the physical optical port setting of the new energy centralized control device to which the source control terminal belongs, and modify the MMS parameter configuration in the shared CID file according to the IP address set on the source control terminal, so as to complete the communication configuration of the energy station monitoring system.

[0022] The new energy power station includes a new energy centralized control device, an oscillation monitoring substation device, multiple ring networks, and multiple source control terminals. Each ring network uses GOOSE and MMS for common port transmission. The multiple source control terminals are divided into multiple groups, with each group of source control terminals connected to a ring network. The ring network GOOSE communicates with the new energy centralized control device, and the ring network MMS communicates with the oscillation monitoring substation device.

[0023] Its beneficial effects are as follows: all source control terminals share a single CCD file and CID file. Based on the terminal number, IP address, and physical optical port configured on the new energy centralized control device, the corresponding GOOSE parameter configuration in the CCD file and the MMS parameter configuration in the CID file are automatically modified. This eliminates the step of configuring the GOOSE virtual terminal connection by engineering commissioning personnel, avoids errors, improves engineering commissioning speed, and ensures commissioning accuracy.

[0024] Furthermore, after configuring the source control terminal, the GOOSE APPID, IEDname, destination MAC address, and source MAC address need to be updated according to the configured terminal number.

[0025] To address the aforementioned technical problems, this invention also provides a test-pointing method for a panoramic monitoring system of new energy power stations. This method triggers analog quantity test-pointing and / or status quantity test-pointing for each source control terminal. Upon receiving the trigger status for analog quantity test-pointing and / or status quantity test-pointing, the source control terminal refreshes and sets its analog quantity data and / or status quantity data in a set order, and returns the test-pointing results. After the test-pointing is completed, the source control terminal automatically switches its state to acquire real analog quantities and / or status quantities. The new energy power station includes a centralized control device for new energy, multiple ring networks, and multiple source control terminals. Each ring network uses GOOSE and MMS common port transmission. The multiple source control terminals are divided into multiple groups, with each group connected to a ring network. The ring network GOOSE communicates with the centralized control device for new energy.

[0026] Its beneficial effects are as follows: using the above method, it is not necessary to use a tester when performing analog quantity test pairing and state quantity test pairing, and it can automatically restore to the true value after the set time is up, avoiding the hidden danger of errors caused by forgetting to exit the test mode when manually entering it, improving the efficiency of test work, overcoming the inconvenience of carrying a tester on site, and saving the debugging personnel from running back and forth between different source control terminals and testing.

[0027] Furthermore, the setting time is 5 to 12 seconds.

[0028] Its beneficial effect is that the setting time can be flexibly set. Attached Figure Description

[0029] Figure 1 This is a communication architecture diagram of the new energy power station full monitoring system targeted by this invention;

[0030] Figure 2 This is a flowchart illustrating the communication configuration of the source control terminal in the new energy power station according to the present invention;

[0031] Figure 3This is a flowchart illustrating the communication configuration of the centralized control device for new energy in a new energy power station according to the present invention.

[0032] Figure 4 This is a flowchart of the point-to-point testing process for new energy power stations according to the present invention. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of this invention.

[0034] Example of a panoramic monitoring system for new energy power stations:

[0035] like Figure 1 The diagram shown is a communication architecture diagram of an embodiment of the panoramic monitoring system for new energy power stations. The entire panoramic monitoring system for new energy power stations includes a power station-side safety and stability control device, a centralized control device for new energy, an oscillation monitoring substation device, a power station network layer, and multiple source control terminals. The power station network layer includes multiple ring networks (…). Figure 1 The system utilizes a single-mode optical fiber ring network. Each ring network employs a common port for both GOOSE and MMS transmission. Multiple source control terminals are grouped according to project scale, with all source control terminals in a group connected to a single ring network. The ring network GOOSE communicates with the centralized control device for new energy sources, while the ring network MMS communicates with the oscillation monitoring substation. The centralized control device for new energy sources connects to the site-side stability control device via a 2M interface. The centralized control device for new energy sources and the oscillation monitoring substation support the access of 100 source control terminals. The centralized control device for new energy sources supports access to a small ring network consisting of 32 source control terminals.

[0036] The source control terminal is installed on the wind turbine / inverter side. For photovoltaic power plants with centralized inverters, one source control terminal is required for each centralized inverter; for photovoltaic power plants with string inverters, one source control terminal is required for each inverter array; and for wind farms, one source control terminal is required for each wind turbine. The source control terminal uses the IEC104 protocol for fast communication with downstream systems.

[0037] The monitoring system is interconnected with the power grid side, which includes the power grid stability control system, the dispatching-end controllable resource monitoring master station, and the dispatching-end oscillation monitoring master station. Specifically, the station-side stability control device is connected to the power grid stability control system via a 2M interface and also to the dispatching-end controllable resource monitoring master station via Ethernet. The oscillation monitoring substation device is connected to the dispatching-end oscillation monitoring master station via Ethernet.

[0038] The source control terminal uses GOOSE and MMS for transmission via a shared ring network port. Exporting the CCD file first requires creating an SCD file. This involves exporting the ICD files of the source control terminal, the new energy centralized control device, and the oscillation monitoring substation. Further, it configures the SCD files containing GOOSE and MMS information for 100 source control terminals (ZD001, ZD002, ZD003, ..., ZD100), one new energy centralized control device JD001, and one oscillation monitoring substation ZJ001. ZD001, ZD002, ZD003, ..., ZD100 are the IEDnames of the source control terminals. Each source control terminal contains two sets of GOOSE transmissions: one set for analog GOOSE and one set for status GOOSE. The source control terminal's GOOSE reception requires information from all 100 source control terminals. Each new energy centralized control device contains six sets of GOOSE transmissions, corresponding to the GOOSE reception of all 100 source control terminals within a single source control terminal. The GOOSE transmission information of the source control terminal comes from the CCD file exported from the SCD file and the Ethernet eth.cfg configuration file automatically generated by the source control terminal device. The CCD file contains the APPID, IEDname, and destination MAC address, while the eth.cfg file contains the source MAC physical Ethernet port information. In this way, each source control terminal receives all 6 sets of GOOSE commands (a total of 300 commands, 3 commands per terminal: boosting the power generation unit, lowering the power generation unit, and disconnecting the power generation unit) issued by the new energy centralized control device. The source control terminal automatically identifies the 3 commands belonging to its terminal from the 300 commands based on the terminal number.

[0039] The source control terminal's functionality is implemented through a combination of the following modules: a source control terminal platform module (including input / output management and CCD file parsing), a source control terminal interface module (primarily responsible for human-machine data management and interface time synchronization, providing browsing, setting, and debugging menus), a source control terminal communication module (primarily responsible for ring network GOOSE reception, unpacking, status transmission, and ring network GOOSE packet assembly and transmission), and a source control terminal application module (primarily responsible for source control terminal algorithm and logic processing). Figure 2As shown. The source control terminal sets a unique terminal number (1-100) through the source control terminal interface module menu. The source control terminal application module modifies the GOOSE APPID, IEDname, destination MAC, and source MAC based on this number. After reading the terminal number of the source control terminal, the source control terminal application module performs two steps: The first step is to generate a BUnum file storing the source control terminal number. After the source control terminal device is powered on, when the source control terminal platform module parses the CCD file, the source control terminal application module modifies the callback function parameters {including GOOSE APPID, IEDname, and destination MAC} of the CCD registration configuration information provided by the platform module based on the terminal number recorded in the BUnum file; the second step is to modify the ring network Ethernet MAC in the eth.cfg file.

[0040] Assuming a source control terminal device is assigned a unique number M, where M is any number from 1 to 100, then the IEDname of the first group of GOOSEs and the second group of GOOSEs of the source control terminal is ZD00M (1≤M≤9), ZD0M (10≤M≤99), or ZDM (M=100); the APPID of the first group of GOOSEs of the source control terminal is 2*M-1, and the APPID of the second group of GOOSEs is 2*M; the destination MAC of the first group of GOOSEs of the source control terminal is {01-0C-CD-01-00-2*M-1}, and the destination MAC of the second group of GOOSEs is {01-0C-CD-01-00-2*M}; the source MAC of the first group of GOOSEs and the second group of GOOSEs of the source control terminal is {78-6a-0e-64-64-M}. Based on the above information, the communication module completes the packet assembly and transmission of the ring network GOOSEs.

[0041] The functionality of the new energy centralized control device is jointly implemented by the new energy centralized control device platform module, the new energy centralized control device interface module, the new energy centralized control device communication module, and the new energy centralized control device application module, such as... Figure 3As shown. The new energy centralized control device requires setting a value on the interface module menu to specify which physical optical port each of the 100 source control terminals belongs to (the new energy centralized control device integrates 32 physical optical ports, supporting 32 ring network accesses; the number of source control terminals connected to a single physical optical port ring network is determined based on the project). After the application module of the new energy centralized control device reads the physical optical port settings of the source control terminals, it generates a BUnum file storing these settings. When the platform module of the new energy centralized control device parses the CCD file after power-on, the application module modifies the callback function parameter {physical optical port information} of the registered CCD configuration information provided by the platform module according to the physical optical port settings of the source control terminals recorded in the BUnum file, to match which physical optical port the actual source control terminal is connected to. The communication module completes the reception of GOOSE commands based on the above matching information. The new energy centralized control device supports sending 3 commands to each source control terminal, for a total of 300 GOOSE commands.

[0042] The source control terminal also has an IP setting menu on its interface module. It sets the IP address based on the source control terminal IP assigned by the oscillation monitoring substation device, and dynamically modifies the corresponding IP information in the CID file based on the set IP. After reading the IP address set in the source control terminal device interface module menu, the source control terminal application module generates an MMSip file storing the source control terminal IP address. When the platform parses the CID file after the source control terminal device is powered on, the source control terminal application module modifies the callback function parameter {ring network MMS IP} of the registration CID configuration information provided by the platform module based on the terminal IP address recorded in the MMSip file. The communication module completes MMS packet assembly and transmission based on the above matching information.

[0043] Furthermore, the analog quantity test pair and state quantity test pair menus corresponding to each terminal can be manually triggered on the centralized control device for new energy, such as... Figure 4As shown. Analog information includes values ​​such as the RMS voltage of phase A, phase B, and phase C, while status information includes values ​​such as the grid-connected status of the generator unit, its low-voltage state, and its high-voltage state. The source control terminal receives the corresponding analog test points and status test point trigger states via GOOSE. When the source control terminal receives an analog test point, it refreshes the analog data to the rated values, updating and setting each analog value sequentially. The default setting time for each analog value is 5 seconds, which can be adjusted within a range of 5–12 seconds. After 5 seconds, it automatically switches to the actual values ​​collected by the source control terminal. When the source control terminal receives a status test point, it inverts and sets each current status value sequentially, repeating the process. The default inversion and setting time for each status value is 5 seconds, which can be adjusted within a range of 5–12 seconds. After 5 seconds, it automatically switches to the actual status values ​​collected by the source control terminal.

[0044] In summary, the ring network GOOSE and MMS in the panoramic monitoring system of the new energy power station of this invention adopt common port transmission, which reduces multiple networking on the power station side and reduces investment in optical cables; 100 source control terminals share a single CCD file and CID file, and the project site only needs to set the terminal number, IP address, and physical port address on site to complete the automatic association and activation of GOOSE and MMS information, which improves work efficiency and avoids the probability of errors; moreover, the analog quantity test point-to-point and status quantity test point-to-point functions between the source control terminal and the new energy centralized control device and the oscillation monitoring substation device can be completed in the protection room, which improves work efficiency and overcomes the inconvenience of carrying test instruments on site.

[0045] Example of communication configuration method for panoramic monitoring system of new energy power stations:

[0046] This embodiment of the communication configuration method for the panoramic monitoring system of new energy power stations can be applied to, for example... Figure 1 The communication architecture of the panoramic monitoring system for new energy power stations shown includes a power station-side safety and stability control device, a centralized new energy control device, an oscillation monitoring substation device, a power station network layer, and multiple source control terminals. The power station network layer includes multiple ring networks. Figure 1The system uses a single-mode optical fiber ring network. Each ring network uses GOOSE and MMS for common port transmission. Multiple source control terminals are divided into groups according to the project scale. All source control terminals in a group are connected to a single ring network. The ring network GOOSE communicates with the new energy centralized control device, and the ring network MMS communicates with the oscillation monitoring substation device. The new energy centralized control device is connected to the site-side stability control device via a 2M interface. The new energy centralized control device and the oscillation monitoring substation device support the access of 100 source control terminals. The new energy centralized control device supports the access of a small ring network consisting of 32 source control terminals. The remaining contents of this new energy site panoramic monitoring system, including the new energy centralized control device, the specific modules included in the source control terminals, and their functions, are described in detail in the new energy site panoramic monitoring system embodiment, and will not be repeated in this embodiment. The following describes the communication configuration method of the new energy site panoramic monitoring system implemented based on this new energy site panoramic monitoring system.

[0047] 1) Export the CCD and CID files shared by all source control terminals in the monitoring system from the SCD of the monitoring system.

[0048] 2) The source control terminal sets a unique terminal number through the source control terminal interface module menu. The source control terminal application module reads the number and first generates a BUnum file to store the source control terminal number. After the source control terminal device is powered on, when the source control terminal platform module parses the CCD file, the source control terminal application module modifies the callback function parameters {including GOOSE APPID, IEDname, and destination MAC} of the registered CCD configuration information provided by the platform module according to the terminal number recorded in the BUnum file, and then modifies the ring network Ethernet MAC in the eth.cfg file.

[0049] 3) The new energy centralized control device sets a value on its interface module menu to indicate which physical optical port each of the 100 source control terminals belongs to. The application module of the new energy centralized control device reads this value and generates a BUnum file storing it. After the new energy centralized control device is powered on, when the platform module parses the CCD file, the application module modifies the callback function parameter {physical optical port information} of the registered CCD configuration information provided by the platform module based on the physical optical port settings of the source control terminals recorded in the BUnum file. Steps 2) and 3) complete the modification of the GOOSE parameter configuration in the shared CCD file.

[0050] 4) Based on the source control terminal IPs assigned by the oscillation monitoring substation, the source control terminal sets the IP for each terminal in its interface module menu. The source control terminal application module reads the IPs set in the interface module menu and generates an MMSip file storing the source control terminal IPs. After the source control terminal is powered on, when the platform parses the CID file, the source control terminal application module modifies the callback function parameter {ring network MMS IP} of the registration CID configuration information provided by the platform module according to the terminal IPs recorded in the MMSip file, thus completing the modification of the MMS parameter configuration in the CID file. This completes the communication configuration of the energy plant monitoring system.

[0051] Using this method, the 100 source control terminals in the panoramic monitoring system for new energy power plants only need to use the same CCD file and CID file. Based on the terminal number, IP address, and physical optical port configured on the new energy centralized control device, the system automatically modifies the GOOSE parameter configuration in the corresponding CCD file and the MMS parameter configuration in the CID file. This eliminates the step of configuring the GOOSE virtual terminal connections by engineering commissioning personnel, avoiding errors. Engineering commissioning personnel no longer need to maintain CCD and CID files; they only need to set the source control terminal number, IP address, and the physical optical port of the new energy centralized control device to which the source control terminal belongs to complete the automatic association of CCD and CID. This improves the speed of engineering commissioning and ensures the accuracy of commissioning.

[0052] Example of a test point-to-point method for a panoramic monitoring system for new energy power stations:

[0053] The experimental point-to-point method embodiment of this panoramic monitoring system for new energy power stations can be applied to, for example... Figure 1 The communication architecture of the panoramic monitoring system for new energy power stations shown includes a power station-side safety and stability control device, a centralized new energy control device, an oscillation monitoring substation device, a power station network layer, and multiple source control terminals. The power station network layer includes multiple ring networks. Figure 1The system uses a single-mode optical fiber ring network. Each ring network uses GOOSE and MMS for common port transmission. Multiple source control terminals are divided into groups according to the project scale. All source control terminals in a group are connected to a single ring network. The ring network GOOSE communicates with the new energy centralized control device, and the ring network MMS communicates with the oscillation monitoring substation device. The new energy centralized control device is connected to the site-side stability control device via a 2M interface. The new energy centralized control device and the oscillation monitoring substation device together support the access of 100 source control terminals. The new energy centralized control device supports the access of a small ring network consisting of 32 source control terminals. The remaining contents of this new energy site panoramic monitoring system, including the new energy centralized control device, the specific modules included in the source control terminals, and their functions, are described in detail in the new energy site panoramic monitoring system embodiment, and will not be repeated in this embodiment. The following describes the experimental point-to-point method based on this new energy site panoramic monitoring system.

[0054] 1) Manually trigger the analog quantity test pair and status quantity test pair menu for each terminal on the new energy centralized control device to trigger the analog quantity test pair and status quantity test pair for each source control terminal.

[0055] 2) The source control terminal receives the corresponding analog quantity test points and status quantity test points via GOOSE. When an analog quantity test point is received, the analog quantity data is refreshed to the rated value, and refreshed and set one by one in the order of analog quantities. The setting time for each analog quantity is 5 seconds by default (it can be adjusted, for example, 5 to 12 seconds). After 5 seconds, it automatically switches to the actual value collected by the source control terminal. When a status quantity test point is received, the status quantity data is refreshed to the rated value, and refreshed and set one by one in the order of status quantities. The setting time for each status quantity is 5 seconds by default (it can be adjusted, for example, 5 to 12 seconds). After 5 seconds, it automatically switches to the actual value collected by the source control terminal.

[0056] This point-to-point testing method allows for point-to-point analog and state quantity testing between the source control terminal and the centralized control device for new energy and the oscillation monitoring substation by operating each source control terminal on the centralized control device for new energy in the protection room. It also allows for flexible setting of the setting interval between each point, and automatically restores the true value after the setting time expires. This avoids the potential errors caused by forgetting to exit the test mode after manually entering it, improves testing efficiency, overcomes the inconvenience of carrying test instruments on-site, and eliminates the need for commissioning personnel to travel back and forth between different source control terminals. It solves the difficulties of distributed installation of source control terminals and the inconvenience of carrying test instruments for increased quantity debugging, bringing convenience to engineering commissioning.

[0057] Specific implementation methods have been given above, but the present invention is not limited to the described implementation methods. The basic idea of ​​the present invention lies in the above basic scheme. For those skilled in the art, designing various modified models, formulas, and parameters based on the teachings of the present invention does not require creative effort. Changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. A panoramic monitoring system for new energy power stations, characterized in that, It includes a centralized control device for new energy, an oscillation monitoring substation device, multiple ring networks and multiple source control terminals. Each ring network uses GOOSE and MMS common port transmission. Multiple source control terminals are divided into multiple groups. One group of source control terminals is connected to one ring network. The ring network GOOSE communicates with the centralized control device for new energy, and the ring network MMS communicates with the oscillation monitoring substation device. All source control terminals share the CCD and CID files exported from the SCD file of the new energy power station panoramic monitoring system; The source control terminal is used to set the terminal number and IP address to modify the GOOSE parameter configuration in the shared CCD file and to set the IP address to modify the MMS parameter configuration in the shared CID file when configuring the communication of the panoramic monitoring system. The new energy centralized control device is used to adjust the physical optical port settings of the new energy centralized control device to which the source control terminal belongs in order to modify the GOOSE parameter configuration in the shared CCD file when configuring the communication of the panoramic monitoring system. The new energy centralized control device is also used to trigger analog quantity test pairs and / or status quantity test pairs for each source control terminal, and to receive the test pair results returned by each source control terminal. The source control terminal is also used to refresh and set the analog quantity data and / or status quantity data of the source control terminal in a set order after receiving the trigger status of the analog quantity test pair and / or status quantity test pair, and return the test pair results to the new energy centralized control device. After the pairing is completed, the state of the source control terminal automatically switches to collecting real analog quantities and / or status quantities.

2. The panoramic monitoring system for new energy power stations according to claim 1, characterized in that, After setting the terminal number, the GOOSE APPID, IEDname, destination MAC address, and source MAC address need to be updated according to the set terminal number.

3. The panoramic monitoring system for new energy power stations according to claim 2, characterized in that, The source control terminal includes a source control terminal interface module, a source control terminal application module, a source control terminal platform module, and a source control terminal communication module; The source control terminal interface module is used to realize human-machine interaction, and to set a unique terminal number for each source control terminal and an IP address set according to the source control terminal IP assigned by the oscillation monitoring substation device; The source control terminal application module is used to read the set terminal number and generate a file to store the terminal number, and is also used to read the set IP address and generate a file to store the IP address; The source control terminal platform module is used to modify the GOOSE APPID, IEDname, and destination MAC address in the CCD file according to the terminal number recorded in the file when parsing the CCD file, and to modify the source MAC address in the Ethernet configuration file, and to modify the IP information in the CCD file according to the IP address in the file. The source control terminal communication module is used to realize ring network communication.

4. The panoramic monitoring system for new energy power stations according to claim 1, characterized in that, The new energy centralized control device includes a new energy centralized control device interface module, a new energy centralized control device application module, a new energy centralized control device platform module, and a new energy centralized control device communication module. The interface module of the new energy centralized control device is used to realize human-computer interaction and set the physical optical port settings of the new energy centralized control device to which the source control terminal belongs. The application module of the new energy centralized control device is used to read the set physical optical port settings and generate a file that stores the physical optical port settings. The new energy centralized control device platform module is used to modify the physical optical port information in the CCD file according to the physical optical port setting value in the file when parsing the CCD file. The communication module of the new energy centralized control device is used for communication.

5. The panoramic monitoring system for new energy power stations according to claim 1, characterized in that, Each source control terminal contains two sets of GOOSE transmissions: one set for analog GOOSE and one set for status GOOSE.

6. The panoramic monitoring system for new energy power stations according to claim 1, characterized in that, The setting time is 5 to 12 seconds.

7. A communication configuration method for a panoramic monitoring system for new energy power stations, characterized in that, The panoramic monitoring system for new energy power stations is the system described in any one of claims 1-6, and includes the following steps: 1) Export the CCD and CID files shared by all source control terminals in the monitoring system from the SCD of the monitoring system; 2) Modify the GOOSE parameter configuration in the shared CCD file according to the terminal number set on the source control terminal and the physical optical port setting of the new energy centralized control device to which the source control terminal belongs, and modify the MMS parameter configuration in the shared CID file according to the IP address set on the source control terminal, so as to complete the communication configuration of the energy station monitoring system. The new energy power station includes a new energy centralized control device, an oscillation monitoring substation device, multiple ring networks, and multiple source control terminals. Each ring network uses GOOSE and MMS for common port transmission. The multiple source control terminals are divided into multiple groups, with each group of source control terminals connected to a ring network. The ring network GOOSE communicates with the new energy centralized control device, and the ring network MMS communicates with the oscillation monitoring substation device.

8. The communication configuration method of the panoramic monitoring system for new energy power stations according to claim 7, characterized in that, After configuring the source control terminal, the GOOSE APPID, IEDname, destination MAC address and source MAC address need to be updated according to the configured terminal number.

9. A test point-to-point method for a panoramic monitoring system for new energy power stations, characterized in that, The new energy power station panoramic monitoring system is the system described in any one of claims 1-6 above, which triggers analog quantity test pairing and / or status quantity test pairing for each source control terminal; after receiving the trigger status of analog quantity test pairing and / or status quantity test pairing, the source control terminal refreshes and sets the analog quantity data and / or status quantity data of the source control terminal in a set order, and returns the test pairing results. After the pairing is completed, the source control terminal automatically switches its status to collecting real analog quantity and / or status quantity. The new energy power station includes a new energy centralized control device, multiple ring networks and multiple source control terminals. Each ring network uses GOOSE and MMS for common port transmission. The multiple source control terminals are divided into multiple groups, with each group of source control terminals connected to a ring network. The ring network GOOSE communicates with the new energy centralized control device.

10. The test point-to-point method for the panoramic monitoring system of new energy power stations according to claim 9, characterized in that, The setting time is 5 to 12 seconds.

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