Phase Identification Method Based on Digital Phase Discrimination

Abstract

The present invention relates to the technical field of phase identification, and particularly to a phase identification method based on digital phase discrimination, comprising the following steps: obtaining a power transmission line, and constructing a virtual image of a power transmission topology structure according to the power transmission line; selecting a point in the virtual image of the power transmission topology structure as the deployment point of a phase discriminator to deploy the phase discriminator; constructing a data interaction platform, configuring a wireless network in the power transmission line, and enabling the phase discriminator to operate to capture the phase difference and upload it to the data interaction platform through the wireless network; the present invention can effectively obtain accurate and stable phase difference data for each power transmission section in the power transmission line, and in the process of obtaining the phase difference data, by constructing and generating the virtual image of the power transmission topology structure, it can provide a more simple and fast way for the user side to read the phase difference data, and further obtain relevant data such as phase angle based on the phase difference data.

Description

Technical Field

[0001] The present invention relates to the technical field of phase recognition, and in particular to a phase recognition method based on digital phase discrimination. Background Art

[0002] With the development of digital circuit technology, digital phase-locked loops (DPLLs) have found widespread application in modulation and demodulation, frequency synthesis, FM stereo decoding, color subcarrier synchronization, image processing, and other fields. DPLs not only incorporate the advantages of digital circuits, such as high reliability, compact size, and low price, but also overcome the shortcomings of analog PLLs, such as DC zero drift, device saturation, and susceptibility to power supply and ambient temperature variations. Furthermore, they offer real-time processing capabilities for discrete samples, making them a key development direction in PLL technology. A PLL is a phase feedback control system. In a DPL, because the error control signal is a discrete digital signal rather than an analog voltage, the controlled output voltage changes are discrete rather than continuous. Furthermore, all loop components are implemented using digital circuits, resulting in the term "fully digital PLL." A DPL primarily consists of four components: a digital phase detector, an up / down counter, a frequency switching circuit, and an N-divider.

[0003] Regarding the application of phase detectors in power transmission lines, their main purpose is to be used as leakage protection. However, when currently used in power systems, phase detectors have poor intelligence and require a high degree of manual operation. The data obtained from their operation cannot be intelligently fed back and requires manual retrieval by staff. After identifying the phase difference of the input signal, the phase detector is usually unable to quickly identify and obtain related data such as the phase angle corresponding to the phase difference, making the process of obtaining useful data through phase detector operation time-consuming and lengthy. Summary of the Invention

[0004] Technical problems solved

[0005] In view of the above shortcomings of the prior art, the present invention provides a phase recognition method based on digital phase discrimination, which solves the technical problems raised in the above background technology.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The phase recognition method based on digital phase discrimination includes the following steps:

[0009] Step 1: Obtain the power transmission lines and construct a virtual image of the power transmission topology structure based on the power transmission lines;

[0010] Step 2: Select points in the virtual image of the power transmission topology as phase detector deployment points and deploy the phase detectors;

[0011] Step 3: Build a data interaction platform, configure a wireless network in the power transmission line, and enable the phase discriminator to run and capture the phase difference and upload it through the wireless network to the data interaction platform;

[0012] Step 4: Obtain the feature region image analyzed in the lower-level sub-step 32 of Step 3, and search for the phase difference data captured by the operation of the phase discriminator in the feature region image;

[0013] Step 5: Real-time monitor the operating status of the power transmission line, and synchronously drive the phase discriminator to collect the phase difference of the power transmission line when the power transmission line is operating;

[0014] Step 6: Select the phase difference as the recognition target from the collected phase differences, and receive the phase difference linear image constructed in the lower-level sub-step 42 of Step 4;

[0015] Step 7: Capture the phase angle of the paragraph corresponding to the recognition target with the same phase difference as the selected recognition target in the phase difference linear image, pack the captured phase angle and its corresponding phase difference data, and feedback it to the user terminal.

[0016] Furthermore, after constructing the virtual image of the power transmission topology structure in Step 1, synchronously capture the power transmission nodes in the constructed virtual image of the power transmission topology structure, and send them to Step 2 after the capture of the power transmission nodes is completed.

[0017] Furthermore, when the data interaction platform constructed in Step 3 receives the phase difference data captured by the operation of the phase discriminator, it synchronously traces the source of the phase discriminator from which the phase difference data comes, and the data interaction platform records the source phase discriminator when receiving the phase difference data;

[0018] Among them, when the circuit transmission line is deployed by selecting points according to the virtual image of the power transmission topology structure, the phase discriminator is synchronously marked with a digital number, and the digital number marking order of the phase discriminator is marked according to the main branch logic in the power transmission line and the virtual image of the power transmission topology structure.

[0019] Furthermore, the lower level of Step 3 is provided with sub-steps, including the following steps:

[0020] Step 31: Set the operation cycle of the data interaction platform, and draw a phase difference linear image according to the time series for the data received in the data interaction platform after each operation cycle ends;

[0021] Step 32: Store the phase difference linear image data, and analyze the feature region image in the image data;

[0022] Among them, after the data interaction platform draws the phase difference linear image according to the time series, it deletes the phase difference data captured by the phase discriminator corresponding to the phase difference linear image stored in the data interaction platform; the feature region image in the image data analyzed in step 32 is an image that appears continuously and no less than twice in the image data.

[0023] Furthermore, the lower level of step 4 is provided with sub-steps, including the following captures:

[0024] Step 41: Receive the phase difference data found in step 4 and analyze the phase angle values corresponding to each phase difference data;

[0025] Step 42: Receive the phase angle values corresponding to the phase difference data analyzed in step 41 and construct a phase difference linear image according to the phase angle value data.

[0026] Furthermore, the phase difference linear image constructed in step 42 is synchronously stored after construction;

[0027] Among them, the storage location of the stored phase difference linear image is stored at the position of the phase discriminator corresponding to the phase difference in the virtual image of the power transmission topology structure, and the user terminal reads the phase difference linear image at the corresponding position of the phase discriminator deployment in the virtual image of the power transmission topology structure.

[0028] Furthermore, the phase discriminator deployed in the power transmission line is selected from any one of the following: analog phase discriminator, diode balanced phase discriminator, digital phase discriminator, sample phase discriminator, multiplicative phase discriminator, and gate phase discriminator.

[0029] Furthermore, step 6 is repeatedly executed according to the number of times manually edited and set by the user terminal during the execution process of the method steps.

[0030] Furthermore, the packaged data fed back to the user terminal in step 7 is named according to the mark of the phase discriminator corresponding to the packaged data in the virtual image of the circuit transmission topology structure and then fed back to the user terminal.

[0031] Beneficial effects

[0032] Adopting the technical solution provided by the present invention, compared with the known public technology, it has the following beneficial effects:

[0033] 1. The present invention provides a phase identification method based on digital phase discrimination. By executing the steps in this method, it is possible to effectively obtain accurate and stable phase difference data for each power transmission section in the power transmission line. During the acquisition of the phase difference data, the generation of a virtual image of the power transmission topology structure is adopted, which can provide a simpler and faster way for the user side to read the phase difference data. Further, based on the phase difference data, relevant data such as phase angles are obtained, and the data is used to draw and generate a linear image, so as to facilitate further analysis of the relevant data for the phase difference data acquisition by the subsequent phase discriminator.

[0034] 2. During the execution of the steps in the method of the present invention, a virtual image of the power transmission topology structure is applied to specifically analyze the power transmission line. Furthermore, the deployment position of the phase discriminator is selected in the virtual image of the power transmission topology structure, making the deployment position of the phase discriminator more in line with the actual usage requirements of the power transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Figure 1 It is a schematic flowchart of a phase identification method based on digital phase discrimination. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0038] The following further describes the present invention with reference to the embodiments.

[0039] Embodiment 1

[0040] The phase identification method based on digital phase discrimination in this embodiment, as Figure 1 shown, includes the following steps:

[0041] Step 1: Obtain the power transmission line and construct a virtual image of the power transmission topology structure according to the power transmission line;

[0042] Step 2: Select a point in the virtual image of the power transmission topology structure as the deployment point for the phase detector and deploy the phase detector;

[0043] Step 3: Build a data interaction platform, configure a wireless network in the power transmission line, and enable the phase detector to run and capture the phase difference and upload it through the wireless network to the data interaction platform;

[0044] Step 4: Obtain the feature region image analyzed in the lower-level sub-step 32 of Step 3, and search for the phase difference data captured by the phase detector operation in the feature region image;

[0045] Step 5: Real-time monitor the operating state of the power transmission line, and synchronously drive the phase detector to collect the phase difference of the power transmission line when the power transmission line is operating;

[0046] Step 6: Select the phase difference as the recognition target from the collected phase differences, and receive the phase difference linear image constructed in the lower-level sub-step 42 of Step 4;

[0047] Step 7: Capture the phase angle of the paragraph corresponding to the recognition target with the same phase difference as the selected recognition target in the phase difference linear image, pack the captured phase angle and its corresponding phase difference data, and feedback it to the user terminal.

[0048] Embodiment 2

[0049] At the specific implementation level, on the basis of Embodiment 1, this embodiment further specifically describes the phase recognition method based on digital phase discrimination in Embodiment 1 with reference to Figure 1 as shown:

[0050] After building the virtual image of the power transmission topology structure in Step 1, synchronously capture the power transmission nodes in the constructed virtual image of the power transmission topology structure, and send them to Step 2 after the capture of the power transmission nodes is completed.

[0051] Through the above settings, the transmission nodes in the power transmission line can be captured and sent to Step 2 after the capture, which is used by Step 2 as the deployment location of the phase detector to ensure that the installation location of the phase detector meets the actual use requirements of the power transmission line.

[0052] As Figure 1 shown, when the data interaction platform built in Step 3 receives the phase difference data captured by the operation of the phase detector, it synchronously traces the source of the phase difference data to the phase detector, and the data interaction platform records the source phase detector when receiving the phase difference data;

[0053] Among them, when the circuit transmission line is deployed by selecting points according to the virtual image of the power transmission topology, the phase discriminator is synchronously numbered digitally. The digital numbering order of the phase discriminator is marked according to the main branch logic in the power transmission line and the virtual image of the power transmission topology.

[0054] As Figure 1 shown, the lower level of step 3 is provided with sub-steps, including the following steps:

[0055] Step 31: Set the operation period of the data interaction platform. After each operation period ends, draw a phase difference linear image for the received data in the data interaction platform according to the time series;

[0056] Step 32: Store the phase difference linear image data and analyze the characteristic region image in the image data;

[0057] Among them, after the data interaction platform draws the phase difference linear image according to the time series, the phase difference data captured by the phase discriminator corresponding to the phase difference linear image stored in the data interaction platform is deleted; the characteristic region image in the image data analyzed in step 32 is an image that appears continuously and not less than twice in the image data.

[0058] Through the setting of the lower-level sub-steps of step 3 above, the characteristic region image in the phase difference linear image in the power transmission line can be further analyzed to ensure that the effective data captured by the phase discriminator in the power transmission line can be completely obtained.

[0059] As Figure 1 shown, the lower level of step 4 is provided with sub-steps, including the following captures:

[0060] Step 41: Receive the phase difference data found in step 4 and analyze the phase angle values corresponding to each phase difference data;

[0061] Step 42: Receive the phase angle values corresponding to the phase difference data analyzed in step 41 and construct a phase difference linear image according to the phase angle value data.

[0062] Through the setting of the lower-level sub-steps of step 4 above, the phase angle data can be further obtained through the phase difference, thereby providing basic data support for the execution of the lower-level steps in this method, and also enabling users to obtain more operation data in the power transmission line through this method.

[0063] Embodiment 3

[0064] At the specific implementation level, on the basis of Embodiment 1, this embodiment makes a further specific description of the phase recognition method based on digital phase discrimination in Embodiment 1 with reference to Figure 1 shown:

[0065] The phase difference linear image constructed in step 42 is stored synchronously after construction;

[0066] Among them, the storage location of the stored phase difference linear image is stored at the position of the phase detector corresponding to the phase difference in the virtual image of the power transmission topology structure. The user terminal reads the phase difference linear image at the corresponding position of the phase detector deployment in the virtual image of the power transmission topology structure.

[0067] Such as Figure 1 shown, the phase detector deployed in the power transmission line is selected from any one of the following: analog phase detector, diode balanced phase detector, digital phase detector, sample phase detector, multiplicative phase detector, and gate phase detector.

[0068] Such as Figure 1 shown, step 6 is repeatedly executed according to the number of times manually edited and set by the user terminal during the execution of the steps of this method.

[0069] Such as Figure 1 shown, the packaged data fed back to the user terminal in step 7 is named according to the mark of the phase detector corresponding to the packaged data in the virtual image of the circuit transmission topology structure, and then fed back to the user terminal.

[0070] In summary, through the execution of the steps in the method in the above embodiments, it is possible to effectively obtain accurate and stable phase difference data for each power transmission section in the power transmission line. And during the acquisition process of the phase difference data, by constructing and generating the virtual image of the power transmission topology structure, it can provide a simpler and faster way for the user terminal to read the phase difference data. Further, based on the phase difference data, relevant data such as phase angle is obtained, and the data is used to draw and generate a linear image, so as to facilitate further analysis of the relevant data for the subsequent acquisition of the phase difference data by the phase detector; in addition, during the execution of the steps of the method, the virtual image of the power transmission topology structure is used to specifically analyze the power transmission line, and then the deployment position of the phase detector is selected in the virtual image of the power transmission topology structure, so that the deployment position of the phase detector more meets the actual use requirements of the power transmission line.

[0071] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A phase recognition method based on digital phase discrimination, characterized in that It includes the following steps: Step 1: Obtain the power transmission line and construct a virtual image of the power transmission topology structure based on the power transmission line; Step 2: Select points in the virtual image of the power transmission topology structure as the deployment points for the phase discriminator and deploy the phase discriminator; Step 3: Construct a data interaction platform, configure a wireless network in the power transmission line, and enable the phase discriminator to run to capture the phase difference and upload it to the data interaction platform through the wireless network; Step 4: Obtain the feature region image analyzed in the lower-level sub-step 32 of Step 3, and search for the phase difference data captured by the phase discriminator operation in the feature region image; Step 5: Real-time monitor the operation status of the power transmission line, and synchronously drive the phase discriminator to collect the phase difference of the power transmission line when the power transmission line is operating; Step 6: Select the phase difference as the recognition target from the collected phase differences, and receive the phase difference linear image constructed in the lower-level sub-step 42 of Step 4; Step 7: Capture the phase angle of the same paragraph as the recognition target corresponding phase difference in the phase difference linear image according to the selected recognition target, package the captured phase angle and its corresponding phase difference data, and feedback it to the user terminal; The lower level of Step 3 is provided with sub-steps, including the following steps: Step 31: Set the operation cycle of the data interaction platform, and draw a phase difference linear image for the received data in the data interaction platform according to the time series after each operation cycle ends; Step 32: Store the phase difference linear image data, and analyze the feature region image in the image data; Among them, after the data interaction platform draws the phase difference linear image according to the time series, it deletes the phase difference data captured by the corresponding phase discriminator in the phase difference linear image stored in the data interaction platform; the feature region image in the image data analyzed in Step 32 is an image that appears continuously and no less than twice in the image data; The lower level of Step 4 is provided with sub-steps, including the following captures: Step 41: Receive the phase difference data found in Step 4, and analyze the phase angle values corresponding to each phase difference data; Step 42: Receive the phase angle values corresponding to the phase difference data analyzed in Step 41, and construct a phase difference linear image according to the phase angle value data.

2. The phase identification method based on digital phase discrimination according to claim 1, wherein After constructing the virtual image of the power transmission topology structure in Step 1, synchronously capture the power transmission nodes in the constructed virtual image of the power transmission topology structure, and send them to Step 2 after the capture of the power transmission nodes is completed.

3. The phase recognition method based on digital phase discrimination according to claim 1, characterized in that, When the data interaction platform constructed in Step 3 receives the phase difference data captured by the phase discriminator operation, it synchronously traces the source of the phase difference data to the phase discriminator, and the data interaction platform records the source phase discriminator when receiving the phase difference data; Among them, when the power transmission line selects points for deployment according to the virtual image of the power transmission topology structure, the phase discriminator is synchronously marked with a digital number, and the digital number marking order of the phase discriminator is marked according to the main branch logic in the power transmission line and the virtual image of the power transmission topology structure.

4. The phase identification method based on digital phase discrimination according to claim 1, characterized in that, The phase difference linear image constructed in Step 42 is synchronously stored after construction; Among them, the storage position of the stored phase difference linear image is stored at the position of the phase difference corresponding source phase detector in the virtual image of the power transmission topology, and the user terminal reads the phase difference linear image at the corresponding position of the phase detector deployment in the virtual image of the power transmission topology.

5. The phase identification method based on digital phase discrimination according to claim 1, characterized in that The phase detector deployed in the power transmission line is selected from any one of the following: analog phase detector, diode balanced phase detector, digital phase detector, sample phase detector, multiplier phase detector, and gate phase detector.

6. The phase identification method based on digital phase discrimination according to claim 1, characterized in that, Step 6 is repeatedly executed according to the number of times set manually by the user terminal during the execution of the steps of the method.

7. The phase identification method based on digital phase discrimination according to claim 1, wherein In step 7, the packed data fed back to the user terminal is named according to the label of the corresponding phase detector of the packed data in the virtual image of the circuit transmission topology, and then fed back to the user terminal.

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