An intelligent control system for a 0.4kV generator car quick access device

Abstract

The present invention relates to the field of power system automation technology, and in particular to an intelligent control system for a 0.4kV power generation vehicle quick access device, which includes: a data acquisition module; an intelligent decision-making module; the intelligent decision-making module further includes: a parallel machine and grid control unit; a protection strategy unit; a fault warning unit; a control execution module; the control execution module includes: a quick plug-in control unit; an electrical parameter adjustment unit; a user interaction interface; and a communication module. The system of the present invention integrates functions such as data acquisition, intelligent decision-making, automatic execution, user interaction, and communication, and realizes the rapid, safe, and efficient access of the power generation vehicle to the distribution network; by real-time monitoring of the status parameters of the power generation vehicle and the distribution network, data analysis is performed to determine the optimal access strategy, and automatic access and adjustment are realized through the actuator, while providing an intuitive user interaction interface and a reliable communication mechanism to ensure the safety and efficiency of the operation process.

Description

Technical Field

[0001] The invention relates to the technical field of power system automation, and in particular to an intelligent control system for a 0.4kV power generation vehicle quick access device. Background Art

[0002] As society's requirements for power supply stability and power quality continue to increase, non-stop operation technology in distribution network maintenance operations is particularly important. As a key tool to achieve this goal, the 0.4kV generator truck quick access device has a direct impact on the operation and maintenance efficiency and user satisfaction of the distribution network due to its operating efficiency and safety. However, most of the existing access devices rely on manual operation and lack intelligent control, resulting in a cumbersome access process, low efficiency, and potential safety hazards. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides an intelligent control system for a 0.4kV power generation vehicle quick access device. The system integrates functions such as data acquisition, intelligent decision-making, automatic execution, user interaction and communication, thereby realizing rapid, safe and efficient access between the power generation vehicle and the distribution network. By real-time monitoring of the status parameters of the power generation vehicle and the distribution network, data analysis is performed to determine the optimal access strategy, and automatic access and adjustment are realized through the actuator. At the same time, an intuitive user interaction interface and a reliable communication mechanism are provided to ensure the safety and efficiency of the operation process.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention provides an intelligent control system for a 0.4kV generator car quick access device, which comprises:

[0006] A data acquisition module is used to monitor the status parameters of the power generation vehicle and the power distribution network in real time. The data acquisition module is also provided with a data preprocessing unit, which filters out noise and calibrates data through a filtering algorithm;

[0007] The intelligent decision-making module performs data analysis based on the information obtained by the data acquisition module to determine the optimal access strategy; the intelligent decision-making module further includes:

[0008] The parallel generator and grid control unit is used to match the voltage, phase and frequency of the generator vehicle and the distribution network;

[0009] The protection strategy unit determines whether to implement short circuit, overcurrent, grounding, overvoltage, and undervoltage protection measures based on the collected real-time data;

[0010] The fault warning unit analyzes historical data and the current status of the quick access device based on the collected data, predicts potential faults and issues warning information in advance. The warning information includes the fault type, possible cause and recommended treatment measures;

[0011] The control execution module controls the connection and disconnection of the quick access device of the power generation vehicle and adjusts the electrical parameters of voltage, current and phase according to the output of the intelligent decision module; the control execution module includes:

[0012] Quick-swap control unit for fast and safe connection and disconnection of power generation vehicle cables;

[0013] An electrical parameter adjustment unit, used for adjusting electrical parameters;

[0014] User interface;

[0015] Communication module: used to communicate with the external distribution network monitoring center.

[0016] Wherein, the data acquisition module also includes an abnormal data processing unit for detecting and processing abnormal data.

[0017] The intelligent decision-making module also includes a knowledge base for storing historical data, fault cases and expert experience to assist the algorithm in making decision optimization.

[0018] The control execution module further includes a safety monitoring unit for real-time monitoring of the safety status during the execution process. When an abnormal situation is detected, the execution is immediately stopped and an alarm is issued.

[0019] Wherein, the user interaction interface also includes an emergency stop button for immediately stopping all system operations in an emergency.

[0020] Wherein, the communication module includes a redundant communication channel, which is used to automatically switch to the backup channel when the main communication channel fails.

[0021] Among them, the communication module includes one or more of Ethernet, Wi-Fi, Bluetooth and 4G / 5G communication protocols.

[0022] The communication module further includes a data encryption unit, which uses an AES-256 encryption algorithm to encrypt the transmitted data.

[0023] Wherein, the electrical parameter adjustment unit adopts a digital signal processor and a programmable logic controller.

[0024] Among them, the intelligent decision-making module also includes a self-learning capability unit, and the self-learning capability unit continuously optimizes the algorithm according to historical data and operation feedback through a machine learning algorithm.

[0025] Beneficial effects of the present invention:

[0026] The system of the present invention integrates functions such as data collection, intelligent decision-making, automatic execution, user interaction and communication, and realizes rapid, safe and efficient access between the power generation vehicle and the distribution network. It performs data analysis by real-time monitoring of the status parameters of the power generation vehicle and the distribution network, determines the optimal access strategy, and realizes automatic access and adjustment through the actuator. At the same time, it provides an intuitive user interaction interface and a reliable communication mechanism to ensure the safety and efficiency of the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The present invention is a principle block diagram of an intelligent control system for a 0.4kV generator vehicle quick access device. DETAILED DESCRIPTION

[0028] 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, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present invention. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0029] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to another component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] It should also be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] like Figure 1 An intelligent control system of a 0.4kV power generation vehicle quick access device shown in the figure comprises: a data acquisition module for real-time monitoring of the state parameters of the power generation vehicle and the distribution network, the data acquisition module is also provided with a data preprocessing unit, the data preprocessing unit filters out noise and calibrates data through a filtering algorithm to ensure the accuracy and reliability of the data; wherein the state parameters include but are not limited to voltage, current, phase angle, frequency, temperature and humidity;

[0032] The intelligent decision-making module performs data analysis based on the information obtained by the data acquisition module to determine the optimal access strategy; based on the information obtained by the data acquisition module, a preset algorithm (such as a neural network, fuzzy logic or an expert system) is used to perform data analysis to determine the optimal access strategy, including but not limited to parallel machine and grid control strategy, protection strategy and fault warning strategy; the intelligent decision-making module also includes a self-learning ability unit, which continuously optimizes the algorithm according to historical data and operation feedback through a machine learning algorithm to improve the accuracy of decision-making; the intelligent decision-making module further includes:

[0033] The parallel generator and grid control unit is used to match the voltage, phase and frequency of the generator car and the distribution network to achieve seamless access, and adopts phase-locked loop technology to ensure phase synchronization; the phase-locked loop is a closed-loop negative feedback phase control system, whose goal is to synchronize the phase of the controlled oscillator with the phase of the standard signal or the external signal; this synchronization is achieved by the method of automatic phase adjustment, thereby ensuring the stability of the phase relationship between the two signals; the phase-locked loop contains at least three basic unit circuits: a phase detector, a loop filter and a voltage-controlled oscillator; the phase detector is used to compare the phase difference between the input signal and the output signal of the voltage-controlled oscillator, and output an error signal proportional to the phase difference; the loop filter is used to The error signal output by the loop filter is filtered and shaped to remove high-frequency noise and interference to obtain a smooth control signal; the voltage-controlled oscillator adjusts the frequency and phase of its output signal according to the control signal output by the loop filter to reduce the phase difference with the input signal; the working principle of the phase-locked loop is the following steps: the phase detector detects the phase difference between the input signal and the output signal of the voltage-controlled oscillator, and outputs an error signal; the loop filter filters and shapes the error signal to obtain a control signal; the voltage-controlled oscillator adjusts the frequency and phase of its output signal according to the control signal to reduce the phase difference; through continuous feedback and adjustment, the phase-locked loop eventually synchronizes the output signal of the voltage-controlled oscillator with the phase of the input signal.

[0034] The protection strategy unit determines whether to implement short circuit, overcurrent, grounding, overvoltage, and undervoltage protection measures based on the collected real-time data;

[0035] The fault warning unit analyzes historical data and the current status of the quick access device based on the collected data, predicts potential faults and issues warning information in advance. The warning information includes the fault type, possible cause and recommended treatment measures;

[0036] The control execution module controls the connection and disconnection of the quick access device of the power generation vehicle and adjusts the electrical parameters of voltage, current and phase through high-precision sensors and actuators according to the output of the intelligent decision-making module; the control execution module includes:

[0037] Quick-swap control unit for fast and safe connection and disconnection of power generation vehicle cables;

[0038] An electrical parameter adjustment unit is used to adjust electrical parameters; the electrical parameter adjustment unit adopts a digital signal processor (DSP) and a programmable logic controller (PLC) to achieve precise adjustment of parameters such as voltage and current to meet the needs of different distribution networks; preferably, the electrical parameter adjustment unit adopts DSP control, and according to the output of the intelligent decision-making module, accurately adjusts parameters such as voltage and current through a PID control algorithm to achieve seamless access to the distribution network; wherein, the quick plug-in control unit adopts an electric or pneumatic drive mechanism, realizes quick connection and disconnection through PLC control, and has automatic locking and unlocking functions to ensure the safety and reliability of operation;

[0039] Among them, high-precision sensors and actuators: high-precision sensors can monitor electrical parameters such as voltage and current in real time, convert analog signals into digital signals and transmit them to the control unit; the actuators act according to the output signals of the control unit to adjust the electrical parameters; the high precision of sensors and actuators ensures seamless access between the power generation vehicle and the distribution network.

[0040] Among them, PID control algorithm: PID control algorithm is a commonly used control algorithm, including proportion (P), integration (I) and differentiation (D) three parts; this algorithm calculates the control amount by comparing the difference between the target value and the actual value and outputs it to the actuator. By continuously adjusting the control amount, the actual value gradually approaches the target value, and the electrical parameters are accurately adjusted.

[0041] The user interaction interface adopts a touch screen and supports a graphical operation interface. It provides operation command input, real-time status information display, historical data query, fault alarm and system configuration functions, which are convenient for on-site operators to quickly understand and operate; the user interaction interface also has a multi-language support unit, which supports multi-language display such as Chinese and English, which is convenient for international application; at the same time, the user interaction interface also has an operation log recording unit, which is used to record the time, type and result of each operation, which is convenient for subsequent analysis and troubleshooting.

[0042] Communication module: used to communicate with the external distribution network monitoring center. The communication module includes one or more of Ethernet, Wi-Fi, Bluetooth and 4G / 5G communication protocols, supports wired and wireless communication methods, ensures efficient data transmission between modules within the system and reliable communication with external systems (such as distribution network monitoring center, remote control center).

[0043] Specifically, the present invention integrates functions such as data collection, intelligent decision-making, automatic execution, user interaction and communication through intelligent control, thereby realizing fast, safe and efficient access between power generation vehicles and distribution networks; through real-time monitoring of status parameters of power generation vehicles and distribution networks, data analysis is performed to determine the optimal access strategy, and automatic access and adjustment are achieved through actuators, while providing an intuitive user interaction interface and a reliable communication mechanism to ensure the safety and efficiency of the operation process, thereby improving power supply reliability and operation efficiency.

[0044] In the embodiment of the present application, the data acquisition module also includes an abnormal data processing unit for detecting and processing abnormal data, which can identify and mark abnormal data and improve data quality.

[0045] In the embodiment of the present application, the intelligent decision-making module also includes a knowledge base for storing historical data, failure cases and expert experience to assist the algorithm in making decision optimization.

[0046] In the embodiment of the present application, the control execution module also includes a security monitoring unit for monitoring the security status of the execution process in real time. When an abnormal situation is detected, the execution is immediately stopped and an alarm is issued.

[0047] In an embodiment of the present application, the user interaction interface also includes an emergency stop button, which is used to immediately stop all system operations in an emergency to ensure the safety of personnel and equipment.

[0048] In an embodiment of the present application, the communication module includes a redundant communication channel, which is used to automatically switch to a backup channel when a main communication channel fails, thereby ensuring the continuity and reliability of communication.

[0049] In an embodiment of the present application, the communication module also includes a data encryption unit, which uses an AES-256 encryption algorithm to encrypt the transmitted data and uses the AES encryption algorithm to ensure information security; the embodiment of the present application has a remote upgrade function, which allows the system software to be remotely updated and upgraded without interrupting the service.

[0050] In an embodiment of the present application, the data acquisition module also includes an adaptive sampling rate adjustment unit, which dynamically adjusts the sampling rate through an algorithm based on real-time analysis of signal frequency and change rate, thereby ensuring that the system power consumption is effectively reduced while capturing key data; in addition, the adaptive sampling rate adjustment unit also has a learning mechanism that can optimize the sampling strategy based on historical data, thereby further improving data quality and system efficiency.

[0051] In an embodiment of the present application, the parallel generator and grid-connected control unit in the intelligent decision-making module further includes a precise time synchronization unit based on GPS, and a dynamic phase adjustment algorithm unit based on fast Fourier transform (FFT), which can achieve phase synchronization between the power generation vehicle and the distribution network within milliseconds to ensure seamless access.

[0052] In an embodiment of the present application, the control execution module includes a state monitoring and feedback unit. The state monitoring and feedback unit adopts a non-invasive current and voltage sensor, which can monitor electrical parameters in real time without affecting the normal operation of the circuit.

[0053] In an embodiment of the present application, the user interaction interface also includes an auxiliary operation function unit based on augmented reality (AR), which is used by on-site workers to view equipment status, operation guides and warning information in real time through devices such as AR glasses or tablet computers, thereby improving the accuracy and safety of operations.

[0054] In an embodiment of the present application, the fault warning unit includes a fault recovery and self-diagnosis module, which adopts a knowledge graph-based fault diagnosis technology, can automatically analyze fault phenomena, locate fault causes, and provide detailed fault reports and repair suggestions; in addition, the fault recovery and self-diagnosis module also has self-learning capabilities, and can continuously optimize the fault diagnosis algorithm based on historical fault data and repair experience.

[0055] In an embodiment of the present application, the data acquisition module also includes a sensor network unit based on the Internet of Things (IoT), which is used to monitor environmental parameters (such as temperature, humidity, wind speed, etc.) and equipment operating status in real time, providing more comprehensive data support for the intelligent decision-making module; in addition, the sensor network unit also supports multiple communication protocols to ensure compatibility with devices of different brands and models.

[0056] In the embodiment of the present application, the optimization algorithm unit in the intelligent decision-making module adopts advanced optimization algorithms such as genetic algorithm and particle swarm optimization algorithm to optimize the output power, parallel operation and grid connection strategy of the power generation vehicle to improve energy utilization efficiency and reduce the impact on the environment; at the same time, the optimization algorithm unit also has self-learning ability, and can continuously optimize algorithm parameters according to optimization results and historical data to improve the optimization effect.

[0057] In an embodiment of the present application, the control execution module also includes a predictive maintenance functional unit based on artificial intelligence (AI), which predicts the probability and time of equipment failure based on historical data and real-time monitoring data, arranges maintenance plans in advance, and reduces unplanned downtime; the predictive maintenance functional unit also supports remote maintenance and fault diagnosis, and can transmit equipment status and fault information to maintenance personnel in real time, thereby improving maintenance efficiency and quality.

[0058] In an embodiment of the present application, the user interaction interface also includes an intelligent assistant function unit based on natural language processing (NLP). The intelligent assistant function unit is used for users to input instructions through voice or text, and the system can automatically parse and execute corresponding operations, thereby improving the convenience and friendliness of user interaction.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. An intelligent control system for a 0.4kV generator car quick access device, characterized in that: include: A data acquisition module is used to monitor the status parameters of the power generation vehicle and the power distribution network in real time. The data acquisition module is also provided with a data preprocessing unit, which filters out noise and calibrates data through a filtering algorithm; The intelligent decision-making module performs data analysis based on the information obtained by the data collection module and determines the optimal access strategy; The intelligent decision-making module further includes: The parallel generator and grid control unit is used to match the voltage, phase and frequency of the generator vehicle and the distribution network; The protection strategy unit determines whether to implement short circuit, overcurrent, grounding, overvoltage, and undervoltage protection measures based on the collected real-time data; The fault warning unit analyzes historical data and the current status of the quick access device based on the collected data, predicts potential faults and issues warning information in advance. The warning information includes the fault type, possible cause and recommended treatment measures; The control execution module controls the connection and disconnection of the quick access device of the power generation vehicle and adjusts the electrical parameters of voltage, current and phase according to the output of the intelligent decision module; the control execution module includes: Quick-swap control unit for fast and safe connection and disconnection of power generation vehicle cables; An electrical parameter adjustment unit, used for adjusting electrical parameters; User interface; Communication module: used to communicate with the external distribution network monitoring center.

2. According to claim 1, the intelligent control system of the 0.4kV generator vehicle quick access device is characterized by: The data acquisition module also includes an abnormal data processing unit for detecting and processing abnormal data.

3. According to claim 1, the intelligent control system of the 0.4kV generator vehicle quick access device is characterized in that: The intelligent decision-making module also includes a knowledge base for storing historical data, failure cases and expert experience to assist the algorithm in making decision optimization.

4. According to claim 1, the intelligent control system of the 0.4kV generator vehicle quick access device is characterized in that: The control execution module also includes a safety monitoring unit for real-time monitoring of the safety status during the execution process. When an abnormal situation is detected, the execution is immediately stopped and an alarm is issued.

5. According to claim 1, the intelligent control system of the 0.4kV generator vehicle quick access device is characterized in that: The user interaction interface also includes an emergency stop button for immediately stopping all system operations in an emergency.

6. The intelligent control system of the 0.4kV generator vehicle quick access device according to claim 1 is characterized in that: The communication module includes a redundant communication channel for automatically switching to a backup channel when a main communication channel fails.

7. The intelligent control system of the 0.4kV generator vehicle quick access device according to claim 1 is characterized in that: The communication module includes one or more of Ethernet, Wi-Fi, Bluetooth and 4G / 5G communication protocols.

8. The intelligent control system of the 0.4kV generator vehicle quick access device according to claim 1 is characterized in that: The communication module also includes a data encryption unit, which uses an AES-256 encryption algorithm to encrypt the transmitted data.

9. The intelligent control system of the 0.4kV generator vehicle quick access device according to claim 1 is characterized in that: The electrical parameter adjustment unit adopts a digital signal processor and a programmable logic controller.

10. The intelligent control system of the 0.4kV generator vehicle quick access device according to claim 1 is characterized in that: The intelligent decision-making module also includes a self-learning capability unit, which continuously optimizes the algorithm based on historical data and operation feedback through a machine learning algorithm.

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