Interface interaction method of a doubly-fed converter debugging system and debugging device

Abstract

The present application relates to the technical field of double-fed converter, and particularly relates to an interface interaction method and a debugging device of a double-fed converter debugging system, which comprises the following steps: in a first display mode, a parameter group list and associated real-time variable information are displayed on the display surface; in a second display mode, a waveform analysis view for converter operation characteristics is displayed on the display surface; the control device triggers a marker switch in response to a marker instruction for a specific variable in the first display mode through the input component, so that the display surface jumps from the first display mode to the second display mode, and a waveform channel corresponding to the specific variable is automatically loaded. Through innovative multi-mode linkage, exclusive safety locking and time axis bidirectional anchoring interaction, the operation efficiency and safety of the double-fed converter in the debugging, operation and maintenance and fault diagnosis processes are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of doubly-fed converter technology, and in particular to an interface interaction method and debugging device for a doubly-fed converter debugging system. Background Technology

[0002] The converter of a doubly-fed induction generator (DFIG) wind turbine is the core component for achieving grid connection of wind power. During on-site commissioning or troubleshooting of the converter, commissioning personnel need to simultaneously monitor hundreds or thousands of configuration parameters, real-time changing electrical variables, and transient process waveform data.

[0003] Existing debugging software typically employs a menu-driven, single-line interaction logic, with parameter configuration, waveform analysis, and event reporting distributed across different independent windows. This fragmented interaction method has the following drawbacks: long operation paths and low efficiency: after discovering an anomaly in a real-time variable, the debugging personnel must manually record the time, switch to the waveform recording interface to load the file, and then manually compare the timeline; high security risks: during the process of issuing underlying files or key parameters, if the UI interface allows other concurrent operations, it can easily lead to controller state conflicts; imprecise fault localization: the text-based event log (SOE) and graphical waveform data lack an automatic alignment mechanism, and millisecond-level transient analysis relies entirely on manual visual identification. Summary of the Invention

[0004] In this section, as well as in the abstract and title of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract, and the title of this application, and such simplifications or omissions shall not be used to limit the scope of the invention.

[0005] To address the shortcomings of existing technologies, one objective of this invention is to provide an interface interaction method for a doubly fed converter commissioning system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an interface interaction method for a doubly fed converter commissioning system, comprising receiving operation instructions through an input component and executing the following interaction rules on a display surface through a control device: in a first display mode, displaying a parameter group list and associated real-time variable information on the display surface; in a second display mode, displaying a waveform analysis view for the converter operating characteristics on the display surface; the control device responding to a marking instruction for a specific variable in the first display mode via the input component triggers a marking switch, causing the display surface to jump from the first display mode to the second display mode, and automatically loading the waveform channel corresponding to the specific variable.

[0007] As a preferred embodiment of the interface interaction method of the doubly fed converter commissioning system of the present invention, the first display mode includes: a first area for displaying the configuration parameter group of the converter in a tree structure; and a second area for displaying the corresponding parameter setting value and dynamically refreshed real-time variable observation value in conjunction with the selection result of the first area.

[0008] As a preferred embodiment of the interface interaction method of the doubly fed converter commissioning system of the present invention, it further includes: exclusive interaction rules based on the device operating status; when the control device receives an instruction to enter the third display mode to execute a file transfer task, it obtains the current physical operating status of the converter; if the preset safety conditions are met, the control device presents an exclusive file processing view on the display surface and forcibly blocks all interaction entrances of the first display mode and the second display mode.

[0009] As a preferred embodiment of the interface interaction method of the doubly fed converter commissioning system of the present invention, the exclusive interaction rule further includes: during file transfer, real-time monitoring of the transfer progress; when the progress reaches the completion threshold, the control device generates a mandatory device restart guidance control on the display surface, and before receiving a feedback signal that the device has successfully restarted, it continues to maintain a shielded state for other mode interaction entrances.

[0010] As a preferred embodiment of the interface interaction method of the doubly fed converter commissioning system of the present invention, it further includes: bidirectional anchoring interaction based on SOE events and waveform data time axis: the control device provides a linkage mapping between the SOE event list view and the waveform analysis view on the display surface; in response to the selection instruction of a specific fault item in the SOE event list, the control device extracts the fault timestamp T0 of the fault item and automatically performs viewport reconstruction in the waveform analysis view, so that the waveform time axis is aligned and displayed with T0 as the center.

[0011] As a preferred embodiment of the interface interaction method of the doubly fed converter commissioning system of the present invention, the viewport reconstruction includes: automatically matching a preset time window span according to the type of the fault item; and automatically adjusting the scaling ratio of the waveform analysis view according to the matched time window span to display the transient change characteristics before and after the fault occurs.

[0012] As a preferred embodiment of the interface interaction method of the doubly fed converter commissioning system of the present invention, the bidirectional anchoring interaction further includes: in the waveform analysis view, in response to the cursor locking command for a specific time point T1, the control device reversely searches the SOE event database; if an event with a deviation from T1 within a preset tolerance range is found, the corresponding event item is automatically scrolled and highlighted in the SOE event list view.

[0013] As a preferred embodiment of the interface interaction method of the doubly fed converter commissioning system of the present invention, the display surface, while performing viewport reconstruction, generates a vertical anchor line at time T0 of the waveform analysis view; and displays an electrical parameter snapshot label associated with the fault item in the vicinity of the vertical anchor line.

[0014] As a preferred embodiment of the interface interaction method of the doubly fed converter commissioning system of the present invention, it further includes intelligent channel filtering interaction: the control device identifies the type of electrical circuit involved in the fault item; according to the type of electrical circuit, it selects the target associated channel from the full waveform recording channel for display on top, and performs weakening or hiding processing on the remaining non-associated channels.

[0015] To address the shortcomings of existing technologies, another objective of this invention is to provide a doubly fed converter commissioning device.

[0016] To achieve the above objectives, the present invention adopts the following technical solution: a doubly fed converter debugging device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-mentioned interface interaction method.

[0017] The beneficial effects of this invention: The interface interaction method and device for the doubly-fed converter commissioning system provided by this invention significantly improves the operational efficiency and safety of doubly-fed converters during commissioning, maintenance, and fault diagnosis through innovative multi-mode linkage, exclusive safety locking, and bidirectional time-axis anchoring interaction. This method has clear logic, is easy to implement on existing commissioning software platforms, and possesses strong industrial practicality and broad application prospects. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the interface of the doubly fed converter commissioning system of the present invention.

[0020] Figure 2 This is a schematic diagram illustrating the process of switching markers according to the present invention.

[0021] Figure 3 This is a schematic diagram of the interface composition for the first display mode of the present invention.

[0022] Figure 4This is a timing diagram of the interface interaction method in Embodiment 1 of the present invention.

[0023] Figure 5 This is a timing diagram of the exclusive interaction rules based on device operating status in Embodiments 1 and 2 of the present invention.

[0024] Figure 6 This is a schematic diagram of the interface composition for the third display mode of the present invention.

[0025] Figure 7 This is a timing diagram of the interface interaction method in Embodiment 2 of the present invention.

[0026] Figure 8 This is a timing diagram of the positive anchoring scheme in the bidirectional anchoring interaction of SOE events and waveform data in Embodiment 3 of the present invention. Detailed Implementation

[0027] To make the objectives, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figures 1 to 6 This is the first embodiment of the present invention. This embodiment provides an interface interaction method for a doubly fed converter commissioning system, which can solve the problems of information dimension fragmentation and excessively long operation path during the commissioning process, and achieve a seamless penetrating interaction effect from static parameters to dynamic waveforms.

[0032] like Figure 4 and Figure 5 As shown, the interface interaction method of the present invention generally includes: Step S101: The system starts up, and the display panel M defaults to the first display mode 100 or the main menu.

[0033] Step S102: The control device C continuously detects the operation commands issued through the input component S.

[0034] Step S103: Determine the instruction type. If it is a "Mark Switch R" instruction, proceed to step S104; if it is a "Enter Exclusive Task" instruction, proceed to step S105; if it is a "SOE / Waveform Anchoring" instruction, proceed to step S106.

[0035] Step S104: Execute the tag switching process, jump from the current mode to the target mode (e.g., jump from the first mode 100 to the second mode 200), and automatically load the associated data.

[0036] Step S105: Execute the exclusive interaction process, and after the security conditions are met, enter the third mode 300 and block other interaction entry points.

[0037] Step S106: Execute the bidirectional anchoring process of the time axis to locate the waveform based on the SOE event, or to locate the SOE event based on the waveform cursor.

[0038] Specifically, the input component S receives operation commands, and the control device C executes the following interaction rules on the display surface M: in the first display mode 100, the parameter group list and associated real-time variable information are displayed on the display surface M; in the second display mode 200, the waveform analysis view 201 for the converter operating characteristics is displayed on the display surface M; in response to the marking command of a specific variable in the first display mode 100 by the input component S, the control device C triggers the marking switch R, causing the display surface M to jump from the first display mode 100 to the second display mode 200, and automatically loads the waveform channel corresponding to the specific variable.

[0039] In this embodiment, the input component S refers to a person's "hand," including a mouse, keyboard, or touchscreen. The control device C refers to the "brain" of the software, i.e., the processor logic running on the computer. The display surface M refers to the screen seen by the person's "eyes." The marker switching R refers to performing an interface jump operation. Compared to a normal jump that simply opens a new page, the marker switching R in this embodiment involves a jump with a "task." For example, pointing to "current" on page A and jumping to page B will automatically place "current" in the center for the viewer to see.

[0040] In this embodiment, exclusive interaction means that when performing an extremely important operation, all buttons on the screen except the progress bar are disabled to prevent random operation.

[0041] In this embodiment, viewport reconstruction refers to an "autofocus" on a specific window. Just as a camera automatically zooms in when it detects a face, the system automatically magnifies the fault waveform to the center of the screen when it detects a fault.

[0042] In the above method, switching R via a marker enables one-click access from the parameter / variable monitoring interface to the waveform analysis interface, significantly shortening the operation path for fault analysis. When an anomaly is detected in a variable, there is no need for manual recording and searching; the system automatically completes the interface switching and channel loading, improving the smoothness and efficiency of debugging.

[0043] Furthermore, the first display mode 100 includes a first area 101 for displaying the converter's configuration parameter group in a tree structure; and a second area 102 for displaying the corresponding parameter settings and dynamically refreshed real-time variable observations based on the selection result of the first area 101. This achieves simultaneous and linked display of parameter configuration and real-time monitoring. It solves the problem of spatial fragmentation of debugging information; after modifying a set of parameters, debugging personnel can immediately observe the impact of the parameter change on real-time physical quantities in adjacent areas of the same display surface, realizing closed-loop feedback from configuration to observation and shortening parameter tuning time.

[0044] In traditional debugging software, when a technician is observing the real-time data stream in the "Parameter / Variable Monitoring Interface" (first display mode 100), they may suddenly notice a variable (such as "Grid-side Phase A Voltage") fluctuating drastically, suggesting a potential fault. At this point, the technician needs to switch to the "Waveform Analysis Interface" (second display mode 200), manually locate the latest waveform file from the disk directory, load it, and then find the channels related to "Grid-side Voltage" among dozens of waveform channels, dragging the timeline to pinpoint the fault's exact moment. This entire process is cumbersome, time-consuming, and highly susceptible to missing the original transient information of the fault.

[0045] This embodiment provides a "mark switching" mechanism to enable one-click access from real-time variables to waveform analysis.

[0046] First display mode 100 layout: (e.g.) Figure 3 As shown, the display surface M is divided into two areas. The first area 101 (left side) displays the converter's parameter groups in a tree structure, such as "grid-side parameters," "machine-side parameters," and "protection parameters." The second area 102 (right side) has two parts: one displaying parameter settings, and the other displaying dynamically refreshed real-time variable observations. When the user clicks on "grid-side parameters" in the left-side tree menu, the right side will simultaneously display the relevant grid-side parameter settings and real-time variable values.

[0047] Marker toggle R trigger: such as Figure 2 As shown, when a user right-clicks on the specific variable "Grid-side A-phase voltage (V_Grid_A)" in the real-time variable list of the second area 102 and selects "Jump to waveform analysis" in the pop-up context menu, a marking command is issued through the input component S.

[0048] Control device response: After receiving the flag command, control device C executes the following logic: a. The internal unique identifier (ID) corresponding to this variable is identified as "CH_V_Grid_A".

[0049] b. Based on the current time, automatically retrieve the most recently generated waveform file (COMTRADE format) from the storage path.

[0050] c. Triggering the flag switch R will switch the display mode of the display interface M from the first display mode 100 (parameter / variable interface) to the second display mode 200 (waveform analysis interface).

[0051] d. While loading the waveform file, intelligent channel filtering is performed: Control device C identifies the ID "CH_V_Grid_A" as belonging to the "grid-side electrical circuit". Therefore, it automatically filters out channels strongly related to the grid-side circuit from all 64 channels in the waveform file, such as "grid-side phase A voltage", "grid-side phase B voltage", "grid-side phase C voltage", "grid-side phase A current", and "grid-side phase B current", and arranges them at the top of the waveform view (placing them at the top). Simultaneously, other irrelevant channels, such as "gearbox temperature" and "anemometer signal", are hidden or displayed with a light gray line to minimize their visibility.

[0052] Working principle: In this embodiment, the core of the mechanism lies in a predefined mapping table from signal to channel. This table stores the correspondence between real-time variable IDs and physical channel names (or calculation formulas) in the waveform file. When a marking command occurs, the control device C no longer performs a series of manual search, open, and load operations by the user, but automatically completes the entire process of data association, file location, and interface rendering based on this mapping table.

[0053] In summary, this embodiment simplifies the cross-interface operation that originally required 5-6 steps or even more into a single "right-click," eliminating the need for debugging personnel to interrupt their analysis process to handle software operations. Furthermore, through intelligent channel filtering, the most relevant information for fault analysis is highlighted, while irrelevant information is hidden. Debuggers can immediately focus on core transient electrical quantity changes, avoiding the hassle of searching for key channels in massive amounts of data. In addition, the entire process from detecting an anomaly to seeing the relevant waveform can be completed within 1-2 seconds, achieving "what you see is what you get" real-time fault-assisted analysis.

[0054] Example 2

[0055] Reference Figures 5 to 7This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides exclusive interaction rules based on the device's operating status, addressing the following problem: When maintaining a doubly-fed converter, it is often necessary to update the firmware of its underlying controller or download a completely new set of key operating parameters. These operations place extremely high demands on the continuity of communication and the stability of the system state. In traditional software, parameter settings, waveform analysis, and other windows can still be operated during the download process. If the commissioning personnel accidentally send a parameter modification command to the controller during this process, it will create a bus conflict with the ongoing file transfer command. This can lead to download failure, file corruption, or even controller logic chaos and system crashes, requiring on-site hardware reset.

[0056] Specifically, compared to Embodiment 1, this embodiment also includes exclusive interaction rules based on the device operating status: when the control device C receives an instruction to enter the third display mode 300 to execute a file transfer task, it obtains the current physical operating status of the converter; if the preset safety conditions are met, the control device C presents an exclusive file processing view 301 on the display surface M and forcibly blocks all interaction entrances of the first display mode 100 and the second display mode 200.

[0057] Here, "exclusive interaction" refers to a user interface entering an "exclusive" mode when performing certain critical tasks that are essential to device security or data integrity. In this mode, the interface pops up a full-screen or modal dedicated view and forcibly locks, hides, or grays out the entrances to all other functional modules to prevent users from accidentally touching other buttons during critical operations, thereby avoiding command conflicts.

[0058] This solution addresses the technical issue of controller state conflicts or task failures caused by concurrent operations during high-risk operations such as firmware upgrades and critical parameter fixation by imposing strict limitations on the scope of user operations at the interaction level. It also enforces standardized debugging procedures through UI design, significantly improving operational security.

[0059] Furthermore, the exclusive interaction rules also include: real-time monitoring of the transfer progress during file transfer; when the progress reaches the completion threshold, the control device C generates a mandatory device restart guide control on the display surface M, and maintains a shielded state against other mode interaction entry points until a feedback signal indicating successful device restart is received. This scheme achieves closed-loop security management of file transfer tasks. It requires that a device restart must be performed after the task is completed to activate the new configuration, and the system remains in a secure locked state until a successful restart is achieved and communication is established. This reduces the risk of configuration ineffectiveness or inconsistent system states that may result from ignoring the restart step or continuing operation after a failed restart.

[0060] In this embodiment, an "exclusive interaction rule" based on the device's operating status is introduced, and the specific operation method is as follows: Step S201: Command received. When the user clicks the "Download Firmware" or "Download Parameter File" button in the main menu, the control device C receives the command to enter the third display mode 300 (file transfer task mode).

[0061] Step S202: Safety condition judgment. Control device C first reads the current operating status word (StatusWord) of the inverter via the communication bus. Only when the status word displays preset safety conditions such as "Inverter is blocked," "Motor is stopped," or "In debugging mode" is further allowed. Otherwise, a prompt will appear: "The current device is in operation; download operation is prohibited."

[0062] Step S203: Force masking and view rendering; once the conditions are met and transmission begins, such as... Figure 7 As shown, control device C performs the following operations: a. A full-screen or modal file processing view 301 pops up on the display surface M. The view displays a progress bar and log information at the top, and the background of the view is presented as a semi-transparent mask.

[0063] b. Control the view's priority to the highest level via the UI state machine. Simultaneously, suspend all communication threads related to parameter settings, waveform analysis, and other functional modules in the background logic, and force all interactive entry points of these functional modules (such as menu bar buttons and tabs) to be grayed out and unclickable, thus completely blocking the first and second display modes.

[0064] Step S204: Closed-loop management. During the transmission process, the progress is monitored in real time. When the progress reaches 100% (completion threshold), the control device C does not immediately close the exclusive view. Instead, it generates a mandatory "device restart" guide control on the view and displays the prompt: "File transfer is complete. The device must be restarted for the new configuration to take effect. Please click restart, and the system will automatically detect the restart status." Before the user clicks restart and the control device C receives a feedback signal that the device has successfully restarted (such as re-establishing a communication handshake), the system will continue to maintain a state of blocking other mode interaction entry points.

[0065] The rest of the structure is the same as in Example 1.

[0066] How it works: This embodiment uses a high-priority "modal task manager" to take over UI control. Upon entering the third mode 300, a low-level "interaction lock" flag is set. All events from the input component S are first checked by this flag. If the flag is "locked," all window messages except those related to the current task (such as cancellation or restart) are discarded. After the task is completed, the flag is not immediately unlocked; instead, it waits for an external "restart successful" event to reset the flag, forming a closed loop.

[0067] In summary, this embodiment enforces standardized debugging procedures at the UI interaction level, physically eliminating the possibility of users performing any other concurrent operations during critical tasks, and completely avoiding the risk of controller crashes or file corruption due to command conflicts. Furthermore, by forcibly requiring the device to restart and checking the restart status, it ensures that new configurations or firmware are correctly loaded and activated, avoiding the risk of the device operating in an unknown state due to ignoring the restart step.

[0068] Example 3

[0069] Reference Figures 1-8 This is the third embodiment of the invention. Unlike the previous embodiment, this embodiment provides a two-way anchoring interaction based on SOE events and waveform data, addressing the following problem: When a grid voltage drop (low voltage ride-through event) occurs at a wind farm, the converter generates hundreds or thousands of SOE records. Commissioning personnel need to analyze the transient processes before and after this critical "low voltage ride-through" event. In traditional software, engineers need to manually find a time point in the waveform file, such as "13:43:52.125," then manually set the start time and time axis scaling of the waveform view, and then zoom in and out to find a suitable observation window. This process is highly experience-dependent and easily misses crucial waveform details due to minor deviations in the time axis.

[0070] Specifically, compared to Embodiment 2, this embodiment also includes bidirectional anchoring interaction based on the time axis of SOE events and waveform data: the control device C provides a linkage mapping between the SOE event list view and the waveform analysis view 201 on the display surface M; in response to the selection instruction of a specific fault item in the SOE event list, the control device C extracts the fault timestamp T0 of the fault item and automatically performs viewport reconstruction in the waveform analysis view 201 so that the waveform time axis is aligned and displayed with T0 as the center.

[0071] "Viewport reconstruction" here refers to the system automatically calculating and adjusting the display start time and time axis scaling ratio (i.e., window span and scaling factor) of the waveform view based on the user's focus (such as a fault moment) to ensure that the key time point is accurately located in the center of the visible area of ​​the screen.

[0072] This solution solves the problem of accurately and quickly matching text alarms with graphical curves on the time axis. It achieves "positive anchoring": clicking on an SOE record automatically locates the waveform to the precise millisecond-level moment when the fault occurred, eliminating the need for manual searching through long waveforms and improving the efficiency and accuracy of fault location from "second-level" to "millisecond-level".

[0073] Furthermore, viewport reconstruction includes: automatically matching a preset time window span based on the type of fault; and automatically adjusting the scaling of the waveform analysis view 201 according to the matched time window span to display the transient change characteristics before and after the fault occurs. This further optimizes the intelligence level of viewport reconstruction. Different types of faults (such as overvoltage, underfrequency, and low-voltage ride-through) have transient characteristics with different time scales. The system can automatically select the most suitable time window based on the fault type (for example, for voltage sags, displaying the first 50ms to the last 150ms), thereby automatically presenting the user with the "golden view" most helpful for analyzing the fault.

[0074] The bidirectional anchoring interaction also includes: in the waveform analysis view 201, in response to a cursor locking command at a specific time point T1, the control device C performs a reverse search of the SOE event database; if an event with a deviation from T1 within a preset tolerance range is found, the corresponding event item is automatically scrolled and highlighted in the SOE event list view. This solution achieves "reverse anchoring": when the user moves the cursor on the waveform graph to analyze waveform details, the system can automatically find and highlight the SOE event closest to that cursor time. This allows engineers to immediately know what event the controller recorded at that moment when they see waveform anomalies, achieving seamless tracing from phenomenon to cause.

[0075] Preferably, while performing viewport reconstruction, display panel M generates a vertical anchor line at time T0 in waveform analysis view 201; and displays a snapshot label of the electrical parameters associated with the fault item in the vicinity of the vertical anchor line. By adding prominent visual markers (anchor lines) and key data labels (snapshots) to the waveform graph, the visual cues at the time of the fault are enhanced. Commissioning personnel no longer need to measure time differences using a measuring cursor; key information is readily available, further improving analysis efficiency.

[0076] Furthermore, it includes intelligent channel filtering and interaction: Control device C identifies the type of electrical circuit involved in the fault item; based on the electrical circuit type, it filters out the target related channels from the full waveform recording channels for top display, and weakens or hides the remaining unrelated channels. A waveform recording file typically contains dozens or even hundreds of channels. This solution intelligently identifies the electrical circuits associated with the fault (such as grid side, machine side, DC bus), automatically filters and highlights the few most relevant channels (such as corresponding voltage and current), while hiding or downplaying irrelevant channels (such as temperature and wind speed). This greatly reduces "visual noise" under large data volumes, helping commissioning personnel focus on core issues.

[0077] like Figure 8 As shown, this embodiment provides a forward anchoring scheme in the bidirectional anchoring interaction of SOE events and waveform data over time. The specific steps are as follows: Step S301: Linked view, the SOE event list view and waveform analysis view are displayed simultaneously on the display surface M.

[0078] Step S302: Event selection. In the SOE event list, the commissioning personnel click on a specific fault item named "Low Voltage Ride-through (LVRT) Action" with the mouse and issue a selection command.

[0079] Step S303: Viewport Reconstruction Calculation. In response to this instruction, control device C performs the following steps: a. Extract the precise fault timestamp T0 of the event from the SOE database, for example, T0=13:43:52.125. b. Identify the fault type as "Low Voltage Ride-Through (LVRT)". c. Based on the built-in expert rule base, the system identifies LVRT as a "fast transient fault," with the waveforms in the 50ms before and 150ms after its occurrence being the most valuable for analysis. Therefore, the automatically matched time window span is 200ms (T0−50ms to T0+150ms). d. Based on this window span, automatically calculate the appropriate scaling ratio for the waveform view.

[0080] Step S304: Precise Presentation. The waveform analysis view undergoes "viewport reconstruction" according to the calculated time window and zoom level, ensuring the waveform time axis is precisely aligned with T0. A prominent red vertical anchor line can be rendered at the T0 time position. Control device C further calculates the electrical parameter values ​​near this time (such as the instantaneous value of the DC bus voltage) and automatically pops up a semi-transparent "snapshot label" in the vicinity of the red anchor line, displaying: "Bus Voltage: 1050V".

[0081] The rest of the structure is the same as in Example 2.

[0082] Working Principle: The core of this solution is an "SOE-Waveform Linkage Engine." This engine maintains a mapping table of "event type - time window" (e.g., LVRT is mapped to [-50ms, +150ms]; overcurrent protection is mapped to [-20ms, +100ms]; communication interruption is mapped to [-500ms, +500ms]). When a user selects an SOE event, the engine obtains its timestamp T0 and type, queries the mapping table to get the window parameters, calculates the data index range for waveform display, and finally sends a "redraw" command to the waveform rendering module, while simultaneously sending instructions to generate anchor lines and snapshot labels.

[0083] In summary, this embodiment eliminates the need for manual waveform location locating and scaling adjustments. The system automatically captures and displays the "most exciting moment" of the fault, improving fault location accuracy from seconds to milliseconds. The red anchor line precisely pinpoints the fault occurrence time, and snapshot labels directly provide the key electrical quantity values ​​at the time of the fault, greatly enhancing the intuitiveness and efficiency of the analysis. Debugging personnel can immediately begin analyzing transient change characteristics without any manual measurements.

[0084] Example 4

[0085] A fourth embodiment of the present invention provides a doubly-fed converter commissioning device, which includes one or more processors, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it can implement any of the interface interaction methods described in the above method embodiments (including but not limited to embodiments one, two, and three). The device may be an industrial laptop or tablet computer with the commissioning software of the present invention installed.

[0086] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An interface interaction method of a doubly-fed converter commissioning system, characterized in that: include, The system receives operation commands via the input component (S) and executes the following interaction rules on the display surface (M) via the control device (C): In the first display mode (100), a list of parameter groups and associated real-time variable information are displayed on the display surface (M); In the second display mode (200), a waveform analysis view (201) for the operating characteristics of the converter is displayed on the display surface (M). The control device (C) responds to a marking instruction for a specific variable in the first display mode (100) via the input component (S), triggering a marking switch (R) to switch the display surface (M) from the first display mode (100) to the second display mode (200), and automatically loading the waveform channel corresponding to the specific variable.

2. The interface interaction method of the doubly-fed inverter commissioning system of claim 1, wherein: The first display mode (100) includes: The first area (101) is used to display the converter's configuration parameter group in a tree structure; The second region (102) is used to display the corresponding parameter setting value and the dynamically refreshed real-time variable observation value in conjunction with the selection result of the first region (101).

3. The interface interaction method for the doubly fed converter commissioning system as described in claim 1 or 2, characterized in that: It also includes exclusive interaction rules based on device operating status. When the control device (C) receives an instruction to enter the third display mode (300) to perform a file transfer task, it obtains the current physical operating state of the converter; If the preset security conditions are met, the control device (C) presents an exclusive file processing view (301) on the display surface (M) and forcibly blocks all interactive entry points of the first display mode (100) and the second display mode (200).

4. The interface interaction method of the doubly-fed inverter commissioning system of claim 3, wherein: The exclusive interaction rules also include: During file transfer, the transfer progress is monitored in real time; Once the progress reaches the completion threshold, the control device (C) generates a mandatory device restart guide control on the display surface (M), and continues to block other mode interaction entrances until a feedback signal indicating successful device restart is received.

5. The method of interface interaction of a doubly-fed inverter commissioning system according to any one of claims 1, 2 or 4, characterized in that: It also includes bidirectional anchoring interaction of the time axis based on SOE events and waveform data: The control device (C) provides a linked mapping between the SOE event list view and the waveform analysis view (201) on the display surface (M); In response to a selection instruction for a specific fault item in the SOE event list, the control device (C) extracts the fault timestamp T0 of the fault item and automatically performs viewport reconstruction in the waveform analysis view (201) so that the waveform time axis is aligned and displayed with T0 as the center.

6. The interface interaction method of a doubly-fed inverter commissioning system according to claim 5, characterized in that: The viewport reconstruction includes: Automatically match a preset time window span based on the type of the fault item; The scaling of the waveform analysis view (201) is automatically adjusted according to the matching time window span to show the transient change characteristics before and after the fault occurs.

7. The interface interaction method of a doubly-fed inverter commissioning system of claim 5, wherein: The two-way anchoring interaction also includes: In the waveform analysis view (201), in response to a cursor locking command for a specific time point T1, the control device (C) performs a reverse retrieval of the SOE event database; If an event is found that deviates from T1 within the preset tolerance range, the corresponding event item will be automatically scrolled and highlighted in the SOE event list view.

8. The interface interaction method of the doubly-fed inverter commissioning system of claim 7, wherein: While the display surface (M) is performing viewport reconstruction: Generate a vertical anchor line at time T0 in the waveform analysis view (201); And display a snapshot label of the electrical parameters associated with the fault item in the area adjacent to the vertical anchor line.

9. The interface interaction method of the doubly-fed inverter commissioning system of claim 8, wherein: It also includes intelligent channel filtering interaction: The control device (C) identifies the type of electrical circuit involved in the fault item; Based on the electrical circuit type, target associated channels are selected from the full waveform recording channels and displayed at the top, while the remaining non-associated channels are weakened or hidden.

10. A double-fed inverter commissioning device, characterized by: It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the interface interaction method as described in any one of claims 1 to 9.

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