Cross-regional substation phase synchronization checking method and system based on 5G and Beidou technologies

Abstract

The invention relates to the technical field of phase synchronization checking, in particular to a cross-regional substation phase synchronization checking method and system based on 5G and Beidou technologies. Comprising a communication module, a positioning time synchronization module, a data acquisition module, a data processing phase calculation module, a data storage management module, a display control module, a cross-regional synchronization coordination module, a redundancy fault-tolerant module and an expansion function module. The communication module is used for 5G communication, providing a network interface and performing communication encryption; the positioning time synchronization module is used for receiving Beidou satellite signals and carrying out time correction and distribution; the data acquisition module is used for acquiring, buffering and filtering data; by adopting 5G and Beidou technologies and combining a distributed consistency algorithm, an adaptive synchronization algorithm and an intelligent fault processing mechanism, the cross-regional substation phase synchronization checking method and system can significantly improve precision, efficiency and reliability, overcome the defects of a traditional method, and provide powerful guarantee for efficient operation of a modern power system.

Description

Technical Field

[0001] The present invention relates to the field of phase synchronization verification technology, and specifically to a cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology. Background Art

[0002] Substations are a key component in the power system, mainly used to change voltage levels, distribute power, and ensure the reliability and stability of power transmission. Phase synchronization refers to maintaining the phase consistency of electrical signals between multiple power systems or equipment, which means that the voltage or current of each part of the power system reaches the same phase angle at the same time. Phase synchronization is crucial in the power system because it ensures the stability and efficiency of power transmission and avoids power loss and equipment damage caused by phase differences.

[0003] The purpose of calculating phase synchronization in substations is to maintain phase consistency to ensure the stable operation of the power system and reduce oscillations and fluctuations. Phase synchronization can minimize losses in power transmission and improve the efficiency of power transmission. Unsynchronized phases may cause equipment damage. Maintaining phase synchronization can extend the service life of equipment and reduce maintenance costs. Phase synchronization improves power quality and ensures the reliability and continuity of power supply.

[0004] However, in general, traditional phase synchronization verification methods rely on GPS or other low-precision time synchronization methods, which can easily lead to time drift and phase errors. In addition, the slow communication speed leads to poor real-time performance and difficulty in rapid adjustment and response. It also relies on centralized control and coordination, which can easily lead to single point failures and system fragility, making it difficult to achieve efficient coordination in large-scale distributed systems.

[0005] In summary, it is necessary to propose a cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology, including a communication module, a positioning time synchronization module, a data acquisition module, a data processing phase calculation module, a data storage management module, a display control module, a cross-regional synchronization coordination module, a redundant fault-tolerant module, and an extended function module;

[0009] The communication module is used for 5G communication, providing a network interface and performing communication encryption;

[0010] The positioning time synchronization module is used to receive Beidou satellite signals and perform time correction and distribution;

[0011] The data acquisition module is used for data acquisition, buffering and filtering;

[0012] The data processing phase calculation module is used for signal processing, phase difference calculation and data analysis;

[0013] The data storage management module is used for data compression, local data storage and data cloud backup;

[0014] The display control module is used to provide a human-computer interaction interface and perform remote control and alarm;

[0015] The cross-region synchronization coordination module is used for regional coordination, synchronization adjustment and fault isolation;

[0016] The redundant fault-tolerant module is used to provide backup communication, data backup and fault detection;

[0017] The extended function module is used to provide quantum communication, edge computing and virtual reality extended functions.

[0018] Preferably, the communication module further includes a 5G communication unit, a network interface unit and an encryption unit;

[0019] The 5G communication unit is used to provide a high-speed, low-latency wireless communication connection;

[0020] The network interface unit is used to connect to the internal network of the substation to achieve data transmission;

[0021] The encryption unit is used to ensure the security of communication data and prevent the data from being stolen or tampered with.

[0022] Preferably, the positioning time synchronization module further includes a Beidou receiver unit, a time correction unit and a time allocation unit;

[0023] The BeiDou receiver unit is used to receive BeiDou satellite signals and provide accurate position information and time synchronization;

[0024] The time correction unit is used to correct the received time data to ensure synchronization accuracy;

[0025] The time distribution unit is used to distribute the synchronized time information to each subsystem.

[0026] Preferably, the data acquisition module further includes a sensor interface unit, a data buffer unit and a data filtering unit;

[0027] The sensor interface unit is used to connect various sensors to collect current and voltage data;

[0028] The data buffer unit is used to temporarily store the collected data to prevent data loss;

[0029] The data filtering unit is used to perform preliminary processing on the data and filter out noise and invalid data.

[0030] Preferably, the data processing phase calculation module further includes a signal processing unit, a phase difference calculation unit and a data analysis unit;

[0031] The signal processing unit is used to process the collected electrical signal and extract phase information;

[0032] The phase difference calculation unit is used to calculate the phase difference between each substation;

[0033] The data analysis unit is used for data analysis and identification of anomalies and faults.

[0034] Preferably, the data storage management module further includes a local storage unit, a cloud storage unit and a data compression unit;

[0035] The local storage unit is used to provide local data storage for quick access;

[0036] The cloud storage unit is used to upload data to the cloud and provide large-scale storage and backup;

[0037] The data compression unit is used to compress data to save storage space.

[0038] Preferably, the cross-region synchronization coordination module further includes a regional coordination unit, a synchronization adjustment unit and a fault isolation unit;

[0039] The regional coordination unit is used to coordinate synchronization calculations between substations in different regions;

[0040] The synchronization adjustment unit is used to adjust the synchronization state of each substation according to real-time data;

[0041] The fault isolation unit is used to isolate the problem area when a fault occurs to prevent it from spreading.

[0042] Preferably, the display control module further includes a human-machine interface unit, a remote control unit and an alarm unit;

[0043] The human-machine interface unit is used to provide an interface for operator-system interaction;

[0044] The remote control unit is used to allow an operator to control the system remotely;

[0045] The alarm unit is used to issue an alarm when an abnormal situation is detected.

[0046] Preferably, the redundant fault-tolerant module further includes a backup communication unit, a data backup unit and a fault detection unit;

[0047] The backup communication unit is used to provide backup communication means when the main communication link fails;

[0048] The data backup unit is used to back up key data to prevent data loss;

[0049] The fault detection unit is used to monitor the system status in real time, detect and report faults.

[0050] Preferably, the extended function module further includes a quantum communication unit, an edge computing unit and a virtual reality unit;

[0051] The quantum communication unit is used to provide ultra-high security communication using quantum communication technology;

[0052] The edge computing unit is used to perform calculations close to the data source to reduce latency;

[0053] The virtual reality unit is used to provide virtual reality simulation of the substation to assist operation and training.

[0054] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention performs cross-regional substation phase synchronization verification based on 5G and Beidou technology, performs high-precision time synchronization through Beidou technology, ensures that the time reference of each substation is highly consistent, reduces the phase difference caused by time drift, and performs high-speed and low-latency communication through 5G technology to ensure that the data transmission between substations is fast and reliable, monitors and adjusts the phase in real time, has a fast synchronization response speed, avoids synchronization errors caused by communication delays, coordinates the synchronization status of substations in different regions, ensures that the system can still maintain efficient operation under multiple nodes, ensures that effective phase synchronization can still be performed in the event of a fault, performs real-time phase adjustment through an adaptive synchronization algorithm, and uses fault detection and fault-tolerant processing algorithms to ensure the continuity and reliability of the system, can quickly respond to and handle sudden faults, and ensure the continuous operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 The cross-regional substation phase synchronization verification method and system topology diagram based on 5G and Beidou technology of the present invention;

[0056] Figure 2 This is a flow chart of the cross-regional substation phase synchronization verification method based on 5G and Beidou technology of the present invention. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] Example 1

[0059] See also Figure 1 , the present invention proposes a cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology, the system consists of a communication module, a positioning time synchronization module, a data acquisition module, a data processing phase calculation module, a data storage management module, a display control module, a cross-regional synchronization coordination module, a redundant fault-tolerant module, and an extended function module;

[0060] It should be noted that the system conducts 5G communication through the communication module, provides network interface and performs communication encryption, receives Beidou satellite signals through the positioning time synchronization module, performs time correction and distribution, performs data acquisition, buffering and filtering through the data acquisition module, performs signal processing, phase difference calculation and data analysis through the data processing phase calculation module, performs data compression, local data storage and data cloud backup through the data storage management module, provides a human-computer interaction interface and performs remote control and alarm through the display control module, performs regional coordination, synchronization adjustment and fault isolation through the cross-regional synchronization coordination module, provides backup communication, data backup and fault detection through the redundant fault-tolerant module, and provides quantum communication, edge computing and virtual reality extension functions through the extended function module.

[0061] In this embodiment, it should also be noted that the communication module of the system also includes a 5G communication unit, a network interface unit and an encryption unit. The 5G communication unit is used to provide high-speed, low-latency wireless communication connections, the network interface unit is used to connect to the internal network of the substation to achieve data transmission, and the encryption unit is used to ensure the security of communication data to prevent data from being stolen or tampered with.

[0062] In this embodiment, it should also be noted that the positioning time synchronization module of the system also includes a Beidou receiver unit, a time correction unit and a time distribution unit. The Beidou receiver unit is used to receive Beidou satellite signals to provide accurate position information and time synchronization. The time correction unit is used to correct the received time data to ensure synchronization accuracy. The time distribution unit is used to distribute the synchronized time information to each subsystem.

[0063] In this embodiment, it should also be noted that the data acquisition module of the system also includes a sensor interface unit, a data buffer unit and a data filtering unit. The sensor interface unit is used to connect various sensors to collect current and voltage data. The data buffer unit is used to temporarily store the collected data to prevent data loss. The data filtering unit is used to perform preliminary processing on the data to filter out noise and invalid data.

[0064] In this embodiment, it should also be noted that the data processing phase calculation module of the system also includes a signal processing unit, a phase difference calculation unit and a data analysis unit. The signal processing unit is used to process the collected electrical signal and extract phase information. The phase difference calculation unit is used to calculate the phase difference between each substation. The data analysis unit is used for data analysis and identification of anomalies and faults.

[0065] In this embodiment, it should also be noted that the data storage management module of the system also includes a local storage unit, a cloud storage unit and a data compression unit. The local storage unit is used to provide local data storage for quick access, the cloud storage unit is used to upload data to the cloud to provide large-scale storage and backup, and the data compression unit is used to compress data to save storage space.

[0066] In this embodiment, it should also be noted that the cross-regional synchronization coordination module of the system also includes a regional coordination unit, a synchronization adjustment unit and a fault isolation unit. The regional coordination unit is used to coordinate the synchronization calculations between substations in different regions. The synchronization adjustment unit is used to adjust the synchronization status of each substation according to real-time data. The fault isolation unit is used to isolate the problem area when a fault occurs to prevent it from spreading.

[0067] In this embodiment, it should also be noted that the display control module of the system also includes a human-machine interface unit, a remote control unit and an alarm unit. The human-machine interface unit is used to provide an interface for operator-system interaction, the remote control unit is used to allow the operator to control the system remotely, and the alarm unit is used to issue an alarm when an abnormal situation is detected.

[0068] In this embodiment, it should also be noted that the redundant fault-tolerant module of the system also includes a backup communication unit, a data backup unit and a fault detection unit. The backup communication unit is used to provide backup communication means when the main communication link fails. The data backup unit is used to back up key data to prevent data loss. The fault detection unit is used to monitor the system status in real time, detect and report faults.

[0069] In this embodiment, it should also be noted that the extended functional modules of the system also include a quantum communication unit, an edge computing unit and a virtual reality unit. The quantum communication unit is used to provide ultra-high security communication using quantum communication technology, the edge computing unit is used to perform calculations close to the data source to reduce latency, and the virtual reality unit is used to provide virtual reality simulation of the substation to assist in operation and training.

[0070] Example 2

[0071] See also Figure 2 The above-mentioned cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology include the following steps:

[0072] S1. System initialization: Start the system and perform self-test to ensure that all modules are working properly, connect to the network through the 5G communication module, and establish an encrypted communication channel;

[0073] S2. Positioning and time synchronization: The positioning and time synchronization module receives Beidou satellite signals, obtains accurate time information, performs time correction, and distributes the corrected time information to each submodule of the system;

[0074] S3. Data acquisition: The data acquisition module obtains current and voltage data from various sensors, buffers the collected data, and filters out noise and invalid data;

[0075] S4. Data processing and phase calculation: The data processing phase calculation module processes the collected electrical signals, extracts phase information, calculates the phase difference between each substation, and performs data analysis to identify anomalies and faults;

[0076] S5. Data storage management: compress the processed data and store it in the local storage unit, and upload the key data to the cloud for backup;

[0077] S6. Display and control: The display control module provides an interactive interface for system operation through a human-machine interface. The remote control unit allows operators to remotely monitor and control the system. When an abnormal situation is detected, the alarm unit sounds an alarm.

[0078] S7. Cross-region synchronization and coordination: The cross-region synchronization coordination module coordinates the synchronization status of substations in different regions, makes synchronization adjustments based on real-time data, and ensures that the synchronization status of each substation is consistent. When a fault occurs, the fault isolation unit isolates the problem area to prevent the fault from spreading;

[0079] S8. Redundancy and fault tolerance: The redundant fault-tolerant module provides backup communication means to ensure the reliability of the communication link, backs up key data to prevent data loss, monitors system status in real time, and detects and reports faults;

[0080] S9. Expanded functions: Use quantum communication technology to provide ultra-high security communications, perform edge computing, perform computing close to the data source, reduce latency, provide virtual reality simulation of substations, and assist in operations and training.

[0081] Example 3

[0082] See also Figure 1 and Figure 2 The above system and method, in the practical application of cross-regional substation phase synchronization verification, specifically include the following steps:

[0083] (1) System initialization

[0084] System startup:

[0085] Power on the system hardware, initialize each module using the Linux RT embedded operating system, and check the status of all hardware and software components;

[0086] Module initialization:

[0087] Load the communication module, positioning time synchronization module, and data acquisition module through the driver, initialize the network interface unit and encryption unit, and use the OpenSSL library for encryption configuration;

[0088] Network connection:

[0089] Use the 5G communication unit to connect to the operator's network, configure the network interface unit, and assign IP addresses and routing information;

[0090] Establishment of encrypted communication channel:

[0091] Use the TLS protocol to establish an encrypted channel and authenticate identity through pre-shared keys or digital certificates;

[0092] System self-check:

[0093] Perform hardware self-test to check sensor interfaces and storage units, and perform software self-test to check the integrity of software modules and the validity of configuration files;

[0094] (2) Positioning and time synchronization

[0095] Receiving Beidou signals:

[0096] Use the Beidou receiver unit to receive Beidou satellite signals, decode the signals to obtain time information and location information, and correct the system time to ensure that the time accuracy reaches the nanosecond level;

[0097] Time distribution: broadcast the synchronized time information to each subsystem, and each subsystem marks and synchronizes the data through timestamps. Time synchronization monitoring:

[0098] Continuously monitor the time synchronization status, use the PLL time drift detection algorithm to detect and correct time drift, and time synchronization log records:

[0099] Receive time signals through Beidou satellites and continuously monitor the time synchronization status of the system;

[0100] Detect and correct time drift using the PLL time drift detection algorithm

[0101] The basic formula of the phase-locked loop (PLL) is shown in formula (1):

[0102] \Delta\phi(t)=\phi_{\text{ref}}(t)-\phi_{\text{vco}}(t) (1);

[0103] Where (\Delta\phi(t)) is the phase error, (\phi_{\text{ref}}(t)) is the phase of the reference signal, and (\phi_{\text{vco}}(t)) is the phase of the voltage controlled oscillator (VCO);

[0104] Time correction formula, see formula (2):

[0105] \Deltat=\frac{\Delta\phi(t)}{2\pif} (2);

[0106] Where (\Deltat) is the time correction amount, (f) is the signal frequency;

[0107] Specifically, the algorithm flow is:

[0108] Receive time signals from BeiDou satellites and obtain reference phase (\phi_{\text{ref}}(t));

[0109] Measure the phase generated by the VCO (\phi_{\text{vco}}(t));

[0110] Calculate the phase error (\Delta\phi(t));

[0111] Calculate the time drift (\Deltat) based on the phase error;

[0112] Adjust the system time to synchronize (\phi_{\text{vco}}(t)) with (\phi_{\text{ref}}(t));

[0113] The detection and correction process of time synchronization is recorded in the log and stored in the SQLite database for subsequent analysis.

[0114] (3) Data collection

[0115] Sensor data reading:

[0116] Connect the sensor through the sensor interface unit, read the current and voltage data, use ADC to convert the analog signal into a digital signal, and buffer the data:

[0117] Use a buffer to store the collected data to prevent data loss, set up a ring buffer to ensure that the data is stored in chronological order, and filter the data:

[0118] Use Kalman filter to filter noise, remove invalid data, and perform data sampling:

[0119] Set the fixed sampling frequency to 1kHz, perform data sampling, use the timer interrupt to control the data sampling cycle, and calibrate the data:

[0120] Calibrate sensor data, use calibration curve to correct data, and adjust data according to calibration coefficient to ensure data accuracy;

[0121] (4) Data processing and phase calculation

[0122] Signal Processing:

[0123] Use the FFT algorithm to perform frequency domain analysis on electrical signals, extract the amplitude and phase information of the signal, and calculate the phase difference:

[0124] Use FFT algorithm to analyze the electrical signal in frequency domain, see formula (3):

[0125] X(k)=\sum_{n=0}^{N-1}x(n)e^{-j\frac{2\pi}{N}kn} (3);

[0126] Where (X(k)) is the frequency domain signal, (x(n)) is the time domain signal, (N) is the signal length, and (k) is the frequency index;

[0127] Read the electrical signal from the sensor to obtain the time domain signal (x(n)), calculate the FFT of the signal to obtain the frequency domain signal (X(k)), and extract the amplitude and phase information from the frequency domain signal;

[0128] Phase difference calculation

[0129] The phase difference calculation formula is shown in formula (4):

[0130] \Delta\phi=\phi_1-\phi_2 (4);

[0131] Where, (\Delta\phi) is the phase difference, (\phi_1), (\phi_2): the phases of different substations;

[0132] Extract the phase information (\phi_1) and (\phi_2) of each substation from the frequency domain signal, and calculate the phase difference (\Delta\phi) between each substation

[0133] The phase difference calculation formula (\Delta\phi=\phi_1-\phi_2) is used to calculate the phase difference between each substation. The calculation results are stored in the memory for subsequent analysis. Data analysis:

[0134] Use PCA principal component analysis to identify anomalies and faults in the data, generate data analysis reports, record anomalies, and perform phase correction:

[0135] Perform phase correction based on the phase difference results, use the PLL phase-locked loop phase synchronization algorithm to adjust the phase of each substation, and monitor in real time:

[0136] Phase correction is performed based on the phase difference result, as shown in formula (5):

[0137] \phi_{\text{vco}}(t+1)=\phi_{\text{vco}}(t)+K_p\Delta\phi(t)(5);

[0138] Where, (\phi_{\text{vco}}(t+1)) is the corrected VCO phase, (K_p) is the control gain;

[0139] Obtain the phase difference (\Delta\phi(t)), calculate the corrected VCO phase (\phi_{\text{vco}}(t+1)) based on the phase difference, and adjust the VCO so that its phase is synchronized with the reference phase;

[0140] Monitor the phase calculation and data processing process in real time, and use Matplotlib to generate real-time monitoring charts;

[0141] (5) Data storage management

[0142] Data Compression:

[0143] Use Zlib to compress the processed data and store the compressed data in the local storage unit. Local storage:

[0144] Use EXT4 to manage local storage, regularly write data from the buffer to local storage, and back up to the cloud:

[0145] Use AWS S3 for data backup and regularly upload key data to the cloud to ensure data security and data indexing:

[0146] Create data indexes for quick retrieval and access, use SQLite database to manage data index information, and restore data:

[0147] Provide a data recovery mechanism to ensure data recovery in the event of a failure and rebuild local storage data using data backup files;

[0148] (6) Display and control

[0149] Human-computer interface interaction:

[0150] Use the GUI framework to create an operation interface, provide data display, control buttons and status indication, and remote control:

[0151] Use SSH protocol for remote login and control, provide remote operation interface, allow operators to perform remote management, real-time monitoring display:

[0152] Use Matplotlib to display monitoring data in real time, display phase information, synchronization status and system alarms, and alarm mechanisms:

[0153] Set alarm conditions, trigger alarms when abnormal conditions are detected, and notify alarms through sound, light, and interface prompts, log records, and queries:

[0154] Record operation logs and alarm records, and provide log query function to facilitate post-analysis and tracing;

[0155] (7) Cross-regional synchronization and coordination

[0156] Regional Coordination:

[0157] The Distributed Consensus Algorithm is used to coordinate the synchronization status of substations in different regions to ensure that all substations work under the same time reference and adjust synchronously. Specifically, the following steps are included:

[0158] Coordinate the synchronization status of substations in different regions

[0159] In the proposal phase, the node proposes a synchronization proposal;

[0160] In the preparation phase, nodes exchange proposal information;

[0161] In the commitment phase, consensus is reached and the synchronization status is updated;

[0162] Each regional substation node proposes a time synchronization proposal, and the nodes exchange proposal information, reach a consensus, and update the synchronization status of each substation;

[0163] Synchronous adjustment, see formula (6):

[0164] \Deltat_{\text{adj}}=\alpha\Deltat_{\text{prev}}+(1-\alpha)\Deltat_{\text{curr}} (6);

[0165] Where, (\Deltat_{\text{adj}}) is the adjusted time difference, (\Deltat_{\text{prev}}) is the previous time difference, (\Deltat_{\text{curr}}) is the current time difference, (\alpha) is the adaptive factor (0<(\alpha)<1), obtain the previous time difference (\Deltat_{\text{prev}}) and the current time difference (\Deltat_{\text{curr}}), calculate the adjusted time difference (\Deltat_{\text{adj}}), adjust the phase of each substation to synchronize them;

[0166] Synchronous adjustment is performed based on real-time data, and the phase of each substation is adjusted using an adaptive synchronization algorithm to isolate faults:

[0167] When a fault is detected, isolate the fault area to prevent the fault from spreading, ensure stable system operation, and monitor synchronously:

[0168] Real-time monitoring of cross-region synchronization status, using Grafana to display synchronization status charts, and regional coordination log records:

[0169] Record the regional coordination and synchronization adjustment process, and use the database to store the coordination log for subsequent analysis;

[0170] (8) Redundancy and fault tolerance

[0171] Alternate Communications:

[0172] Provide backup communication means, including backup 5G module or wired communication module. When the main communication link fails, it will automatically switch to the backup communication link. Data backup:

[0173] Back up critical data regularly, use Incremental Backup Algorithm to reduce the amount of backup data, and detect faults:

[0174] Use the Anomaly Detection Algorithm fault detection algorithm to monitor the system status in real time, report faults immediately when they are found, and record fault information and perform fault tolerance processing. Specifically, the following steps are included:

[0175] Real-time monitoring system status, see formula (7):

[0176] \mu=\frac{1}{N}\sum_{i=1}^{N}x_i][\sigma=\sqrt{\frac{1}{N}\sum_{i=1}^{N}(x_i-\mu)^2} (7);

[0177] In the formula, (\mu) is the mean of the data, (\sigma) is the standard deviation of the data, (x_i) is the data point,

[0178] Collect system status data in real time, calculate the mean and standard deviation of the data, detect abnormal data points, and record abnormal information;

[0179] After a fault is detected, determine the fault type and location, start the backup system or switch to the backup communication link, restore normal operation, and record the fault handling process:

[0180] Perform fault handling after a fault is detected to ensure that the system continues to operate in the event of a fault and the system recovers:

[0181] Provide system recovery mechanism to ensure rapid recovery of normal operation after failure, and use backup data for recovery to ensure data integrity;

[0182] (9) Extended functions

[0183] Quantum communication:

[0184] Using quantum communication equipment and quantum key distribution technology to provide ultra-high security communications, ensuring the confidentiality and security of communication data, edge computing:

[0185] Deploy edge computing nodes to perform computing close to data sources, use EdgeX Foundry for data processing and analysis, and virtual reality simulation:

[0186] Create a virtual reality model of the substation, use Oculus Rift for operation simulation, provide operation training and fault drills, and monitor quantum communications:

[0187] Monitor quantum communication status in real time to ensure the stability of the communication link, use the QKD monitoring system for status display, and optimize edge computing:

[0188] Optimize edge computing resources based on real-time load.

[0189] In summary, the present invention adopts 5G and Beidou technology, combines distributed consistency algorithm, adaptive synchronization algorithm and intelligent fault handling mechanism, and the cross-regional substation phase synchronization verification method and system can significantly improve the accuracy, efficiency and reliability, overcome the shortcomings of traditional methods, and provide strong guarantee for the efficient operation of modern power systems.

[0190] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology, characterized in that: It includes communication module, positioning time synchronization module, data acquisition module, data processing phase calculation module, data storage management module, display control module, cross-region synchronization coordination module, redundant fault-tolerant module, and expansion function module; The communication module is used for 5G communication, providing a network interface and performing communication encryption; The positioning time synchronization module is used to receive Beidou satellite signals and perform time correction and distribution; The data acquisition module is used for data acquisition, buffering and filtering; The data processing phase calculation module is used for signal processing, phase difference calculation and data analysis; The data storage management module is used for data compression, local data storage and data cloud backup; The display control module is used to provide a human-computer interaction interface and perform remote control and alarm; The cross-region synchronization coordination module is used for regional coordination, synchronization adjustment and fault isolation; The redundant fault-tolerant module is used to provide backup communication, data backup and fault detection; The extended function module is used to provide quantum communication, edge computing and virtual reality extended functions.

2. According to claim 1, the cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology is characterized in that: The communication module also includes a 5G communication unit, a network interface unit and an encryption unit; The 5G communication unit is used to provide a high-speed, low-latency wireless communication connection; The network interface unit is used to connect to the internal network of the substation to achieve data transmission; The encryption unit is used to ensure the security of communication data and prevent the data from being stolen or tampered with.

3. The cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology according to claim 2 is characterized in that: The positioning time synchronization module also includes a Beidou receiver unit, a time correction unit and a time allocation unit; The BeiDou receiver unit is used to receive BeiDou satellite signals and provide accurate position information and time synchronization; The time correction unit is used to correct the received time data to ensure synchronization accuracy; The time distribution unit is used to distribute the synchronized time information to each subsystem.

4. The cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology according to claim 3 is characterized in that: The data acquisition module also includes a sensor interface unit, a data buffer unit and a data filtering unit; The sensor interface unit is used to connect various sensors to collect current and voltage data; The data buffer unit is used to temporarily store the collected data to prevent data loss; The data filtering unit is used to perform preliminary processing on the data and filter out noise and invalid data.

5. The cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology according to claim 4 is characterized in that: The data processing phase calculation module also includes a signal processing unit, a phase difference calculation unit and a data analysis unit; The signal processing unit is used to process the collected electrical signal and extract phase information; The phase difference calculation unit is used to calculate the phase difference between each substation; The data analysis unit is used for data analysis and identification of anomalies and faults.

6. The cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology according to claim 5 is characterized in that: The data storage management module also includes a local storage unit, a cloud storage unit and a data compression unit; The local storage unit is used to provide local data storage for quick access; The cloud storage unit is used to upload data to the cloud and provide large-scale storage and backup; The data compression unit is used to compress data to save storage space.

7. The cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology according to claim 6 is characterized in that: The cross-region synchronization coordination module also includes a regional coordination unit, a synchronization adjustment unit and a fault isolation unit; The regional coordination unit is used to coordinate synchronization calculations between substations in different regions; The synchronization adjustment unit is used to adjust the synchronization state of each substation according to real-time data; The fault isolation unit is used to isolate the problem area when a fault occurs to prevent it from spreading.

8. The cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology according to claim 7 is characterized in that: The display control module also includes a human-machine interface unit, a remote control unit and an alarm unit; The human-machine interface unit is used to provide an interface for operator-system interaction; The remote control unit is used to allow an operator to control the system remotely; The alarm unit is used to issue an alarm when an abnormal situation is detected.

9. The cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology according to claim 8 is characterized in that: The redundant fault-tolerant module also includes a standby communication unit, a data backup unit and a fault detection unit; The backup communication unit is used to provide backup communication means when the main communication link fails; The data backup unit is used to back up key data to prevent data loss; The fault detection unit is used to monitor the system status in real time, detect and report faults.

10. The cross-regional substation phase synchronization verification method and system based on 5G and Beidou technology according to claim 9 is characterized in that: The extended function module also includes a quantum communication unit, an edge computing unit and a virtual reality unit; The quantum communication unit is used to provide ultra-high security communication using quantum communication technology; The edge computing unit is used to perform calculations close to the data source to reduce latency; The virtual reality unit is used to provide virtual reality simulation of the substation to assist operation and training.

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