1111 results about "Ring network" patented technology

The invention discloses a primary and secondary fusion complete ring main unit fault diagnosis method, and particularly relates to the technical field of power distribution fault diagnosis, and the method comprises the steps: collecting multi-path original data, carrying out the frequency domain and time domain combined calibration, carrying out the comprehensive evaluation according to two preset discrimination factors, namely, a data stability deviation amplitude and a multi-path waveform time deviation degree, and obtaining a fault diagnosis result. Two types of feature data sets are constructed subsequently, input data of two interference modeling networks are calculated respectively, then the interference modeling networks are input to output interference grade values, sampling precision dynamic adjustment and fault recognition strategy switching operation are executed according to the interference influence grade values, and diagnosis accuracy and stability in a complex interference environment are improved. According to the method, unified normalization processing of multi-path sensing data is realized, and the sensing accuracy of fault features is improved; through double-factor triggering and feature fusion evaluation, the stability of interference identification is enhanced; and sampling adjustment and strategy switching are executed based on the interference level value, so that the robustness and reliability of diagnosis are improved.

The invention relates to the field of ring main units, in particular to an event-driven intelligent ring main unit and a control method, and the event-driven intelligent ring main unit comprises a cabinet body, a cabinet body built-in circuit breaker, an isolation grounding switch and a fusion sensing array. An array synchronously acquires mechanical and electrical quantities, an edge decision-making system takes a voltage zero crossing point as an absolute time mark nanosecond alignment event, a closed-loop control core generates a protection and topology reconstruction instruction in situ according to the event, and primary equipment is driven in a millisecond level; the intelligent communication interface dynamically schedules bandwidth according to the data priority, and key instructions are ensured to be issued in real time. According to the invention, the problems of fault misjudgment and local control delay caused by lack of a unified time sequence reference in a mechanical state and an electrical transient state of a traditional ring main unit are solved.

The invention discloses a power transmission line fault diagnosis and operation and maintenance scheduling method and system based on networking learning, and relates to the technical field of power transmission line fault diagnosis operation and maintenance scheduling. Related data is extracted to construct a high-risk equipment area and a visual high-risk area thermodynamic diagram, a visual risk grading diagram is constructed in combination with electrical quantity data, and meanwhile, an intelligent recognition storage network and a fault type classification recognition model are constructed in combination with a convolutional neural network-long and short-term memory network hybrid model; the model is optimized through networking learning and an attention mechanism, maintenance teams and resources are autonomously allocated in combination with an operation and maintenance management system, then autonomous optimization and closed-loop operation are achieved, full-process coverage of fault sensing, intelligent decision making and efficient response is achieved, the response time after a line fault occurs is remarkably shortened, and the maintenance efficiency is improved. And the fault handling and operation maintenance capabilities of the power grid system are comprehensively enhanced.

The invention discloses a switch loop data extraction method, device and equipment based on phase locking, and the method comprises the steps: carrying out the interval change analysis of operation data in a ring main unit, and recognizing a communication abnormal node through a phase locking technology; associating a mechanical vibration source based on the communication abnormal nodes, detecting a vibration conduction path, extracting current fluctuation characteristics, and determining position deviation; the operation current intensity is adjusted in combination with fluctuation characteristic parameters, and accurate off-position control is achieved through reverse braking force; constructing a dynamic threshold reference based on frequency domain analysis, and generating a complete operation record according to the dynamic threshold reference and the accurate parking data; performing typed grouping and transmission optimization on the data, and controlling data switching by adopting a gradually migrated beat sequence; and finally, through signal reconstruction and data fusion technologies, a switch loop data set with continuous time sequence and complete space is generated. The method can effectively cope with communication interference, mechanical vibration and other complex environmental factors, and improves the integrity and accuracy of data acquisition.

The invention relates to the technical field of hydropower engineering, and discloses a single-core self-healing type looped network networking method and system, and the method comprises the steps: dividing a whole network into a plurality of sub looped networks; each sub-ring network operates independently; the light switch in each sub-ring network adopts an A / B end connection mode; reversely connecting the B end of the last measuring point to the A end of the initial measuring station by using an optical fiber to form a closed physical structure; configuring a protocol on the switch, and controlling a data flow path through the protocol; different sub-ring networks are connected through RJ45 ports, and a CAT5E shielded twisted pair or an Ethernet interface is used; when a certain node or link fails, the protocol automatically triggers a switching mechanism; the master station optical transceiver monitors the states of all nodes in real time and displays fault points through a network management interface. The system comprises a sub-ring network module, a control data flow module and a fault point display module. The problems that a traditional networking method of hydropower engineering is poor in reliability, and self-healing cannot be achieved after an intermediate node is disconnected are successfully solved.

The invention relates to the technical field of power system communication, and discloses a fault diagnosis method and system for a substation communication network, and the method comprises the steps: obtaining multi-band signal data, and carrying out the fast Fourier transform to obtain spectrum distribution data; according to the spectrum distribution data, performing frequency band division to obtain an initial power ratio; performing adaptive filtering according to the initial power ratio and the multi-band signal data to obtain a fundamental wave amplitude fluctuation characteristic; performing wavelet decomposition according to the fundamental wave amplitude fluctuation characteristics to obtain abnormal signal time-frequency energy distribution; performing K-means clustering division according to the abnormal signal time-frequency energy distribution, and matching a harmonic fault database to obtain a fault type identifier; and according to the fault type identifier and the abnormal signal time-frequency energy distribution, ring network topology propagation time delay analysis is carried out, a fault position coordinate is positioned, and a fault diagnosis report is generated. According to the method, the network fault can be accurately diagnosed for multi-band complex signal interference.

The invention provides a coal mine multi-disaster intelligent sensing early warning and linkage emergency system, and relates to the technical field of coal mine safety, multi-source data collected by a hollow probe sensor group is uploaded to an edge gateway through an industrial ring network for primary processing, and the multi-source data after primary processing by the edge gateway is uploaded to a data layer through the industrial ring network; the processed multi-source data is classified by a time sequence database and a space database of the data layer, the classified multi-source data is analyzed by the analysis layer, and an analysis result of the analysis layer is uploaded to the early warning layer. According to the invention, three-in-one monitoring of deep part-surface-environment is realized through the hollow probe sensor group, and real-time and reliable data is guaranteed by combining edge calculation and dual-channel redundancy transmission; and the space-time database and the disaster chain rule base support analysis layer are fused with long and short-term memory network time sequence modeling and graph convolutional network space correlation and dynamic coupling correction to realize accurate quantification of the composite disaster probability.

The invention provides a rail transit power supply digital twin system and a construction method, and relates to the technical field of data processing, and the method comprises the steps: constructing an urban rail transit power supply system digital twin model, achieving the digital virtualization associated with a physical entity, completing the model rendering, and displaying the state of the entity through a virtual model; according to the entity state, operating parameters of a substation and key equipment of a contact network are collected through a sensor and a hardware device; the operation parameters are cached by the station-level monitoring device body through the double-ring network architecture and then scheduled to a cloud platform communication ring network node, a data transmission path is optimized based on a load balancing strategy, and the data are uploaded to a cloud platform in real time. The management level can be improved, the operation and maintenance cost can be reduced, and a foundation is laid for intelligent operation and maintenance of a rail transit power supply system.

The invention relates to the technical field of fault prediction and health management, in particular to a primary and secondary fusion complete ring main unit fault diagnosis method and system. Comprising the following steps: acquiring three-phase instantaneous voltage and current signals in real time, and converting the signals into digital transient data; performing time window preprocessing on the digital transient data, and executing wavelet packet decomposition to generate a transient feature vector; calculating and analyzing the transient feature vector through a transient zero-sequence power direction method and a support vector machine model to generate a local diagnosis result; when the local diagnosis result is that cooperative positioning needs to be started, a transient current similarity coefficient and a transient waveform intensity difference coefficient are calculated based on the digital transient data, and a comprehensive positioning result is generated; determining a fault line according to the comprehensive positioning result, and generating a remote control command; and executing a fault isolation operation based on the remote control command, and executing a PHM process. According to the method, the double local transient diagnosis and the cross-terminal cooperative positioning are deeply fused, so that the high-precision determination of the boundary of the fault section is realized.

The invention relates to a self-adaptive cooperative control system and method for a sodium-ion battery energy storage system, and relates to the technical field of energy storage system control. An EMS-BMS-PCS cooperative control module is customized, a three-level architecture dynamically adjusts a voltage threshold value, and the SOC is corrected; the multi-stage active safety protection module comprises battery cell monitoring, fault battery cell ejection, modular battery replacement and three-stage fusing protection; the power grid response module PCS performs high-frequency sampling and supports grid-connected and off-grid switching and AGC / AVC service; the intelligent collaborative optimization engine integrates data to generate a charging and discharging strategy, and early warning is performed 14 days in advance for predictive maintenance; the layered distributed control module is used for realizing battery cell-to-system level management; and the double-ring network communication redundancy module ensures real-time transmission of instructions. According to the invention, the DoD and capacity utilization rate of the sodium-ion battery is improved, and the system economy is enhanced; heat spreading is blocked through multi-stage protection, the maintenance time is shortened, and the safety is improved; millisecond-level response meets the high-order demand of a power grid, predictive maintenance reduces the operation and maintenance cost, and the method is suitable for multiple energy storage scenes.

The invention discloses a primary and secondary fusion ring main unit with an anti-condensation function, and relates to the technical field of outdoor ring main units, the primary and secondary fusion ring main unit comprises a ring main unit body, the left side of the ring main unit body is provided with a protective net, the inner side of the protective net is provided with a heat dissipation assembly and a dust removal assembly which are fixedly connected with the ring main unit body, and the rear side of the heat dissipation assembly is provided with a dehumidifier; the right side of the ring main unit body is provided with an air outlet, the rear side of the ring main unit body is provided with a drainage hole, the heat dissipation assembly comprises a fixed plate A, the front of the fixed plate A is rotatably connected with four fan blades, the four fan blades are divided into two groups, and the two groups of fixed plates A are distributed left and right, the dust removal assembly comprises a fixed plate B, and the fixed plate B is fixedly provided with a fixed plate. And baffle plates are arranged on the left and right sides of the fixed plate B. The interior of the ring main unit body is dehumidified through the dehumidifier, and when a relatively large temperature difference occurs between the interior and the exterior of the ring main unit body, the phenomenon that the interior of the ring main unit body is condensed and flashover and creepage accidents occur in the ring main unit body is prevented.

The invention relates to the technical field of power distribution automation auxiliary power supply control, and discloses an intelligent power distribution circuit system for a digital ring main unit, which comprises a transient voltage gradient induction bridge circuit, a hardware signal processing circuit, a power switch unit and a controlled energy release unit, according to the system, a transient voltage gradient induction bridge circuit is used for collecting a primary side bus voltage change rate signal, a hardware signal processing circuit carries out derivation operation on an induction signal and compares the induction signal with a voltage gradient threshold value, and a power switch unit is blocked at the moment that the voltage abnormally drops so as to cut off a load current path. According to the invention, a hardware parameter direct mapping mechanism is utilized to realize microsecond transient protection response, and the physical decoupling of protection logic and digital software is realized by balancing bus potential pulse caused by sudden unloading of a load through the inherent dehumidification resistor in the multiplexing cabinet.

The invention provides a full-period operation data monitoring method and system applied to an intelligent ring main unit, and the method comprises the steps: collecting multi-mode operation data in a full period in real time through operation data collection nodes disposed at all electrical nodes of the intelligent ring main unit; based on a preset time sequence feature extraction rule, performing segmentation alignment processing on the multi-mode operation data, and generating a full-period state parameter corresponding to each electrical node; training an operation monitoring model matched with the intelligent ring main unit according to the full-period state parameters; performing layer-by-layer analysis on the multi-modal operation data acquired in real time through the operation monitoring model, and generating a health degree score and an abnormal confidence interval corresponding to the current operation stage; and triggering an early warning signal or a model updating instruction matched with a preset threshold value, and dynamically adjusting the network parameters of the operation monitoring model. According to the method, multi-modal dynamic characteristics can be deeply fused, model parameters are optimized in real time, and a full-period monitoring system with effective feedback is formed.

The invention discloses a primary and secondary fusion ring main unit fault rapid isolation method and system, and relates to the technical field of power distribution network automation. The method comprises the following steps: acquiring topological characteristics of each node of the ring main unit and performing validity verification to generate an effective topological fingerprint; constructing a dynamic time sequence fault tree model based on the topological fingerprints, and obtaining a minimum cut set with time sequence constraints through space-time decoupling; based on the minimum cut set, a fault isolation strategy is generated through reinforcement learning, and safety verification is carried out; and based on the isolation strategy passing the verification, pre-judging a future topology state through topology deduction and generating a trigger signal. Through dynamic topological feature extraction and verification, reliable basic data is provided for the primary and secondary fusion ring main unit, and the adaptive capacity of the primary and secondary fusion ring main unit in a topological change scene is enhanced; by means of dynamic time sequence fault tree modeling, the fault evolution law is accurately captured, the limitation of a traditional static model is broken through, and the accuracy of fault positioning is improved.

This invention provides a method, apparatus, electronic device, and readable storage medium for redundancy control in ring network communication, relating to the field of vehicle-mounted communication. The method includes: controlling nodes in the vehicle-mounted ring network system to detect abnormal Ethernet link states and broadcast these states via CAN communication; a master control node can determine whether to switch redundant links based on the relevant link abnormal states of each node; if switching is required, a switching control message is broadcast via CAN communication; and each node can adjust its port settings based on the switching control message. By implementing Ethernet link detection and redundant link switching control based on Ethernet communication itself, and by integrating the functions of determining whether to switch links based on abnormal link states and broadcasting switching control messages into the master control node, the requirements for nodes other than the master control node are reduced. This lowers the hardware resource requirements of the vehicle-mounted ring network communication redundancy control scheme compared to existing solutions, making it simpler, easier to implement, and more usable.

The invention discloses a gas leakage monitoring system for an environment-friendly ring main unit, and belongs to the technical field of environment-friendly ring main unit monitoring. The system comprises a real-time acquisition looped network supervision platform, and a joint data real-time acquisition and storage module, an external environment gas dynamic analysis module, an internal environment gas risk analysis module and an emergency regulation and control decision processing module which are in communication connection with the real-time acquisition looped network supervision platform; multi-source data fusion monitoring of internal and external environments of the ring main unit is realized through the joint data real-time acquisition and storage module, the one-sidedness problem of single parameter monitoring is solved, and the leakage risk identification accuracy is improved; second-level data processing and grading risk early warning are realized by means of a real-time algorithm, and the fault response time is shortened; a grading emergency response mechanism is established based on the comprehensive risk index, different risks are precisely handled, and the operation and maintenance cost is reduced while the equipment safety is guaranteed.

The invention discloses a mining-while-digging earthquake advanced detection system based on distributed optical fiber acoustic sensing. Relates to the technical field of seismic exploration. On the basis of a distributed optical fiber acoustic sensing technology, mining-while-digging seismic detection of a working face is realized by utilizing vibration generated by cutting a coal rock stratum by mining machinery. In the production process, the detector collects vibration data of mining machinery and transmits the vibration data to the server through a network; optical cables are arranged on two sides of a coal face upper and lower crossheading or two sides of a driving face roadway; the demodulator emits pulse laser and transmits the pulse laser to the working face optical cable through the industrial looped network or the independent fiber core, vibration of measuring points at equal intervals of the optical cable is measured, and a measuring data packet is returned to the demodulator through the industrial looped network or the independent fiber core; the demodulator demodulates vibration waveform data and uploads the vibration waveform data to the server; server data processing software carries out noise reduction processing on the waveform, then stores and images the waveform, carries out real-time intelligent interpretation, and realizes detection of a geological structure and an abnormal area in front of a working face.

The invention provides a space carrier intelligent bus GLINK interface bridging design method based on a domestic FPGA, belongs to the field of FPGA application, can provide two paths of GLINK data transmission channels and two paths of GLINK data relay / forwarding channel high-speed interfaces at the same time by utilizing FPGA chip resources and combining with a GLINK chip, and can meet the requirements of switching networking and annular networking at the same time. An external memory access interface (EMIF) of a GLINK chip is configured for an international standardized PCIe protocol, and meanwhile, an FIFO synchronous read-write interface in a DMA mode is adopted, so that the communication safety is guaranteed, malicious attacks and accidental interruption are prevented, the communication reliability is improved, and the communication transmission rate is increased.

The invention provides a method for tracing a multi-power-source power supply path in a power system, and the method comprises the steps: obtaining topological data of a power transmission line network diagram, a transformer substation primary wiring diagram, a distribution network looped network diagram and a user low-voltage side wiring diagram in a specified power network, and carrying out the multi-source heterogeneous fusion, so as to construct an integrated transmission, transformation and distribution network topology, corresponding switch state data and mobile power supply equipment operation data are configured in the transmission, transformation and distribution integrated network topology so as to obtain a digital power grid operation model; constructing a node admittance matrix by taking each piece of equipment as a node based on a topological relation between lines in the digital power grid operation model so as to determine lines belonging to a loop, a branch and a cut set in the digital power grid operation model; and determining a multi-power-supply power supply path according to the circuits of the loop, the branches and the cut set in combination with the switch state information and the mobile power supply equipment operation information. According to the invention, the transmission, transformation and distribution integrated network can be comprehensively covered, and the problems of low efficiency, high use cost and the like can be solved.

The invention relates to the technical field of ring main units, and provides a self-adaptive protection device for a ring main unit, which comprises a cabinet body, a gas tank mounted on the back of the cabinet body and filled with environment-friendly insulating gas, and a pressure relief pipe with one end communicated with the top of the gas tank and used for pressure relief of the gas tank, the top of the gas tank is provided with a pressure relief regulation and control assembly, and the top of the pressure relief regulation and control assembly is provided with a dustproof assembly. The pressure relief regulation and control assembly comprises a funnel-shaped main speed discharging barrel arranged at the top of the air box and a butt joint sleeve for connecting the main speed discharging barrel with the pressure relief pipe in a sealed mode. During use, the main pressure relief channel and the branch slow-heating pressure relief channels are utilized and respond to instantaneous high-pressure impact and continuous hot pressing respectively, so that deformation and damage of the gas tank caused by instantaneous arcing overpressure are effectively prevented, and the potential safety hazard that pressure accumulation caused by abnormal slow temperature rise cannot be released in time is eliminated; and self-adaptive protection of the ring main unit gas tank is realized.

The invention relates to the technical field of power grid safety guarantee, and particularly discloses a standardized ring main unit intelligent safety protection and early warning system, which comprises a data acquisition layer, a central processing layer and an execution control layer, and is characterized in that the data acquisition layer is responsible for real-time acquisition of operating parameters of a ring main unit; the central processing layer comprises a data preprocessing sub-module, a risk assessment sub-module and a decision optimization sub-module, and realizes data cleaning, feature extraction, risk assessment and strategy generation. Through hierarchical design, efficient and accurate ring main unit state monitoring and fault prevention and control are realized. The data acquisition layer comprehensively acquires electrical, insulating and state parameters in real time by means of various sensors, and provides an accurate and rich data basis for the system; and a data preprocessing, risk assessment and decision optimization sub-module of the central processing layer performs deep processing on the acquired data, realizes a complete process from data cleaning, feature extraction to risk assessment and strategy generation, and ensures that the risk judgment is accurate and the strategy is reasonable.

The invention relates to a quick-release protective primary and secondary fusion complete ring main unit, and relates to the technical field of ring main units, the quick-release protective primary and secondary fusion complete ring main unit comprises a box body, a terminal strip and a box door mounted on the vertical side surface of the box body, and heat dissipation openings are formed in the two side walls of the box body; a plurality of fixed insertion blocks are fixedly arranged on the terminal row, substrates are installed on the two inner walls of the box body in the vertical direction, and fixed insertion grooves allowing the fixed insertion blocks to be embedded therein are formed in the side faces, away from the side walls of the box body, of the substrates; limiting plates capable of sliding up and down are arranged on the upper side face and the bottom face of the base plate, positioning plates are perpendicularly and fixedly arranged on the side faces, away from the base plate, of the limiting plates in the horizontal direction, and locking plates bent in the direction close to each other are perpendicularly and fixedly arranged on the two positioning plates. A control piece is arranged in the box door, and a reset piece is arranged on the base plate. When the box door is closed, the control piece drives the two locking plates to slide oppositely, and the terminal row is locked rapidly. When the box door is opened, the reset piece enables the two locking plates to slide oppositely, and quick disassembly and maintenance are facilitated.

The invention relates to the field of power system carbon emission flow analysis, in particular to a closed-loop power grid-oriented electric energy tracking and power flow tracing coupled carbon emission flow analysis method, which is based on power flow distribution of an actual power grid and comprehensively utilizes an electric energy tracking method and a power flow tracing method. According to the invention, fine allocation and full-link physical traceability of nodes, branches and loads in a closed-loop power grid structure by carbon emission are realized. By establishing a power flow distribution matrix, a unit injection matrix, a load distribution matrix and a carbon emission intensity vector, the carbon potential of each node, the branch carbon flow rate and the load carbon flow rate are calculated in a recursive manner, an electric energy tracking method and power flow traceability are coupled, and node allocation is iteratively optimized, so that the actual flow path and spatial distribution characteristics of the carbon flow in a power grid are disclosed. The method can adapt to scenes such as complex multi-source access and a looped network structure, the scientificity and fairness of closed-loop power grid carbon emission management are improved, and theoretical and method support is provided for development of low-carbon scheduling, carbon accounting and low-carbon economy.

The present invention relates to the field of ring network box technology, and discloses an intelligent primary and secondary fusion ring network box, comprising an outer box and multiple inner boxes arranged in the outer box, the outer box's top cover, box side walls, box bottom tray and box back wall are all hollow structures, multiple exhaust fans are arranged on the inner plate of the box top cover, each exhaust fan is located above the corresponding inner box top air outlet, the cavity in the box top cover is divided into multiple separate upper ventilation cavities by multiple upper partition plates, each exhaust fan is connected upward to a different ventilation cavity, the cavity in the box back wall is divided into multiple separate rear ventilation cavities by a rear partition plate, the rear ventilation cavity in each box back wall is connected to the corresponding upper ventilation cavity in the box top cover to form a separate ventilation cavity, and a gas detection device is respectively arranged in each ventilation cavity. It has a block-type ventilation and heat dissipation system and a block-type detection system, has good waterproof, moisture-proof, anti-collision and anti-leakage effects, and optimizes the wiring layout.

The invention discloses a subway flywheel energy storage system with a direct-current ice melting function, which comprises a medium-voltage looped network, a contact network, a running rail, a positive bus, a negative bus, a subway rectifier module and a flywheel energy storage module, the subway rectification module is connected with the positive and negative buses. The positive bus is connected with a contact network, and the negative bus is connected with a walking rail; the flywheel energy storage module is connected with the positive bus, the negative bus and the walking rail. The flywheel energy storage module is further connected with the contact net through a circuit breaker QF, and the contact net is connected with the walking rail through a far-end short-circuit switch K3. The invention further discloses an ice melting and energy storage method applying the subway flywheel energy storage system with the direct-current ice melting function. The device has two functions of direct-current ice melting and flywheel energy storage charging and discharging, time division multiplexing is controlled by the two functions through a switch, efficient utilization of equipment is achieved, and the cost performance is improved.

The invention relates to the field of edge computing, in particular to a primary and secondary fusion complete ring main unit energy efficiency optimization system based on cloud edge collaboration. The system comprises an edge device deployment and data acquisition module used for collecting operation electric parameters and device states and generating a service calling request; the service calling module is used for screening target control parameters under security constraints based on the energy efficiency optimization service package; the data synchronization module unloads the data to a cloud platform through a message queue protocol; the cloud service arrangement module aggregates the data updating service package and issues the data updating service package to the edge; and the real-time control module converts the parameters into instructions to drive equipment to act. A cloud training and edge reasoning collaborative architecture is adopted, the problems that local control lacks adaptivity, edge resources are limited and full-cloud control communication time delay exists are solved, and real-time energy efficiency optimization is achieved.

According to the ring main unit with the intelligent online partial discharge detection system provided by the invention, the problem of multisource data asynchronization is solved through a four-dimensional space-time synchronous acquisition mechanism, so that the time alignment error of ultrahigh frequency and ultrasonic signals is lower, and the positioning precision is higher; the edge computing unit is used for executing adaptive filtering and pulse extraction, so that the effective data compression rate is greatly increased, the bandwidth requirement is reduced, and quick response within 3 seconds is realized; cross-modal coupling factor quantification electromagnetic-acoustic emission correlation characteristics are innovatively proposed, the contribution degree of a sensor is adaptively adjusted in combination with a dynamic weight distribution strategy, and high discharge type recognition accuracy is still kept in a strong electromagnetic interference environment; the space-time heterogeneous data is cooperatively processed through the two-channel deep learning model, the composite discharge mode is effectively identified, and the false alarm rate is lower compared with a traditional method; in addition, the system automatically and incrementally trains the model per week, continuously adapts to signal attenuation caused by equipment aging, and prolongs the effective monitoring life by more than three times.

The invention belongs to the technical field of power equipment protection, and relates to an anti-condensation control method and system for a power ring main unit, and the method comprises the steps: collecting the internal temperature and humidity data of power equipment in real time through a high-precision temperature and humidity sensor, controlling the energy storage and release of a phase change energy storage module according to the collected temperature and humidity data, and controlling the energy storage and release of a phase change energy storage module according to the environment change. The rotating speed of a fan and the opening degree of a ventilation valve are adjusted, air circulation is achieved, when it is detected that the humidity in the equipment is too high, a humidity adjusting module is started, the humidity is reduced through a moisture absorption technology, and water vapor condensation is avoided; according to real-time data and a preset algorithm, a temperature and humidity adjusting strategy is optimized, accurate control over the internal environment of the equipment is achieved, and safe operation is ensured. The stability of temperature and humidity regulation and control in the power ring main unit can be effectively improved, the dehumidification efficiency is improved, and the system is particularly suitable for condensation prevention and control of an outdoor high-voltage ring main unit and has the advantages of being efficient, capable of saving energy, intelligent in cooperation and high in reliability.

The invention relates to the technical field of electric power, in particular to a primary and secondary fusion environment-friendly ring main unit intelligent monitoring system and method, and the system comprises a data collection module which is used for collecting multi-mode monitoring data of a ring main unit to obtain an original monitoring data set; the data processing module is used for performing standardization processing on the original monitoring data set to obtain a standardized multi-modal monitoring data set; the intelligent monitoring module is used for performing state evaluation based on the standardized multi-mode monitoring data set to obtain an equipment state monitoring evaluation result; the digital twinning module is used for constructing a digital twinning model and performing digital twinning analysis on the equipment state monitoring and evaluation result through the digital twinning model to obtain a health index and a fault risk prediction result; the strategy generation module is used for generating an operation and maintenance strategy set based on the health index and the fault risk prediction result; and the strategy execution module is used for executing operation and maintenance operation according to the operation and maintenance strategy set and recording an operation and maintenance execution effect.

The invention relates to the technical field of ring main unit detection, and particularly discloses a detection device based on a gas insulation ring main unit, which comprises a detector, two first probes and a second probe which form an array type detection system, and the first probes and the second probe are connected through a mounting frame; the two first probes are respectively mounted at the telescopic ends of the two first telescopic rods; the first probe and the second probe comprise movable ends and fixed shells, the first probe faces and is parallel to the side face of the cabinet body, and telescopic pieces are arranged between the movable ends and the fixed shells. The two first probes and the second probe are stereoscopically distributed through the mounting rack, and are suitable for rapid positioning of leakage discharge positions, and the positions of the first probes can be freely adjusted through the first telescopic rods and the first hinge structures. And the position of the second probe can be freely adjusted through a second telescopic rod, a third telescopic rod and a second hinge structure, so that the usability is improved.