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11476 results about "Power equipment" patented technology

Intelligent inspection robot system for transformer substation equipment

The invention discloses an intelligent inspection robot system for transformer substation equipment. The intelligent inspection robot system for the transformer substation equipment comprises a control center, a wireless communication network and an inspection robot, wherein the control center realizes remote control and data transmission with the inspection robot through the wireless communication network; the control center comprises an upper control host, an inspection monitoring data processing module and a robot remote control transmission module; and the inspection robot comprises a robot control unit, a robot body mechanism, a robot obstacle detection and navigation device, a robot remote control receiving module and a field signal acquisition and transmission device. The intelligent inspection robot system for the transformer substation equipment inspects power equipment in a transformer station through the inspection robot, transmits related data acquired in real time to the control center through the wireless communication network and displays the related data on related equipment, so that workers can remotely monitor the on-site working condition and the operation condition of the equipment conveniently, remote areas and unattended stations can be monitored remotely, and time and labor are saved.
Owner:MAINTENANCE BRANCH OF STATE GRID CHONGQING ELECTRIC POWER +1

Power equipment infrared image fault positioning, identification and prediction method

The invention discloses a power equipment infrared image fault positioning, identification and prediction method. The power equipment infrared image fault positioning, identification and prediction method comprises the following steps: 1) collecting power equipment infrared thermal image data; 2) classifying the infrared images to form a data set; 3) constructing a convolutional neural network model; 4) separating out faulty power equipment; 5) monitoring faulty power equipment in real time, and longitudinally collecting temperature data; 6) positioning a fault part, segmenting the infrared image of the power equipment, and extracting a fault area; 7) diagnosing a fault area, and judging a fault level; 8) predicting an equipment state trend; 9) uniformly outputting and displaying the information; 10) storing the fault level; 11) making four types of infrared image data sets; 12) building a target detection model and training; 13) directly detecting an infrared image of power equipmentto be detected through a target to obtain a fault position and a fault level; 14) repeating the step (5); 15) repeating the step (8); and 16) repeating the step (9) facilitating positioning of the fault position, fault level judgment and prediction of the fault equipment and giving a maintenance suggestion.
Owner:XIAN UNIV OF TECH

Electrical equipment state maintenance system

The invention provides an electrical equipment state maintenance system. The electrical equipment state maintenance system comprises an operation and maintenance base layer platform, a state monitoring module, a state evaluation module, a risk assessment module, a fault diagnosis module and a maintenance strategy module, wherein production area I data of a power grid system and production area III data of the power grid system are integrated on the operation and maintenance base layer platform, the state monitoring module is used for collecting on-line monitoring data of electrical equipment and operating environment information of the electrical equipment through the operation and maintenance base layer platform, the state evaluation module is used for evaluating the on-line monitoring data according to state evaluation standards of the electrical equipment to acquire an electrical equipment health state represented by the on-line monitoring data, the risk assessment module is used for calculating the risk index of the electrical equipment according to risk assessment standards of the electrical equipment, the fault diagnosis module is used for diagnosing faults of the electrical equipment and generating a fault diagnosis report according to the health state and the risk index of the electrical equipment, and the maintenance strategy module is used for generating maintenance strategy information of the electrical equipment according to the health state, the risk index and the fault diagnosis report of the electrical equipment. By means of the electrical equipment state maintenance system, evaluation, assessment and predication are automatically carried out on the power grid system, and therefore the automation level and the intelligentization level of the power grid system are improved.
Owner:EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID +1

Positioning device and positioning method for fault detection of local discharge

The invention discloses a positioning device and a positioning method for fault detection of local discharge, and the positioning device comprises two sensors, a local discharge detection positionfinder and a computer, wherein, the two sensors consist of an electromagnetic sensor and a resonant ultrasonic sensor; the local discharge detection positionfinder is internally provided with double-signal paths in parallel; the positioning device also comprises a data acquisition card and a liquid crystal display (LCD) which are connected with the output ends of the double-signal paths; one path of the double-signal paths is an electromagnetic path connected with a peripheral electromagnetic sensor, while the other path thereof is an ultrasonic channel connected with a peripheral resonant ultrasonic sensor; one path is displayed by the LCD connected with the acquisition card, and the other path is sent to a peripheral computer through data wires after signal received by the electromagnetic path and the ultrasonic path is processed by the acquisition card. The test method is simple and flexible, has easy operation and strong anti-interference performance, overcomes the defect of single detection method for local discharge in the prior art, and can realize accurate detection and position on local discharge fault points in power equipment.
Owner:优能电气(天津)有限公司

Comprehensive monitoring and early warning system based on meteorology and power grid GIS and method thereof

The invention discloses a comprehensive monitoring and early warning system based on meteorology and a power grid GIS and a method thereof. The system comprises a data layer and an application layer. The data layer consists of a meteorological database, a power grid GIS database, and a production and operation database. The application layer includes a meteorological monitoring module, a meteorological early warning module, a power grid weather module, an information display module, and an auxiliary decision-making module. The meteorological database, the power grid GIS database, and the production and operation database carry out communication mutually; and the meteorological monitoring module, the meteorological early warning module, the power grid weather module, the information display module, and the auxiliary decision-making module carry out communication with the meteorological database, the power grid GIS database, and the production and operation database respectively. According to the invention, meteorological monitoring information like the temperature, wind direction, and wind speed and the like of important power equipment like a transformer substation, a transmission and transformation line, and a tower can be gotten in real time; and visual meteorological real-time data can be provided for the power grid. Meanwhile, prediction and disaster early warning information of the typhoon and thunder and the like can be provided every 12 hours in the next seven days.
Owner:EMERGENCY MANAGEMENT CENT OF STATE GRID SHANDONG ELECTRIC POWER

Transformer substation electrical equipment comprehensive physical examination system based on cloud side end collaborative perception

The invention relates to a transformer substation electrical equipment monitoring, analyzing and processing system and particularly relates to a transformer substation electrical equipment comprehensive physical examination system based on cloud side end collaborative perception. The system is characterized in that multi-node detection and unified perception access are realized through an integrated communication network architecture on the edge side of a station end, an intelligent sensing terminal is comprehensively covered in real time. Meanwhile, local intelligent data processing is realized by utilizing an edge computing technology; an omnibearing intelligent diagnosis and analysis system of the transformer substation is constructed at a cloud end, and multiple functions such as abnormal real-time early warning and intelligent sensing prediction are realized, so that the real-time tracking of the operation state of the power equipment of the transformer substation is realized. Themethod has the advantages that the transformer substation can be covered, monitoring data can be comprehensively utilized, an intelligent processing scheme can be provided, construction of the intelligent transformer substation is promoted, and the intelligent evaluation and safety early warning level of the electrical equipment state of the transformer substation is improved.
Owner:STATE GRID INFO TELECOM GREAT POWER SCI & TECH +2

Power equipment current-carrying fault trend prediction method based on least squares support vector machine

The invention discloses a power equipment current-carrying fault trend prediction method based ona least squares support vector machine. The method provided by the invention comprises the steps of employing historical temperature data to train an LS-SVM regression model, and employing a PSO optimization algorithm to adjust two parameters of the model, namely nucleus width sigma and punishment parameter gamma; employing a PCA algorithm and a K-means clustering algorithm to real-time analyze the temperature of equipment contacts to find contacts with abnormal temperature rising, and using the temperature value asan initial value sequence of prediction;and finally employing the regression model obtained by training to predict the temperature value of the initial value for a long term and for a short term, and analyzing the highest point the contact temperature may reach and the time when the contact temperature reaches the highest point. Through predictive analysis based on PSO-LSSVM, fault development trend of equipment contacts is actively controlled, so the time for timely measures and ensuring the safe operation of power grid is bought. The method provided by the invention can be widely used in the field of power equipment forecast alarm protection.
Owner:ZHEJIANG UNIV +1

Device, system and method for measuring space charges by using electro-acoustic (PEA) method

The invention provides a device, a system and a method for measuring space charges by using an electro-acoustic (PEA) method. The device comprises a first electrode, a second electrode, a first thermostatic source, a second thermostatic source, a high-voltage direct current power supply, a pulse generator and a piezoelectric transducer, wherein the first electrode is used for contacting with one surface of the tested insulation material sample; the second electrode is used for contacting with the other surface of the tested insulation material sample; the first thermostatic source is used forconducting the temperature to the first electrode; the second thermostatic source is used for conducting the temperature to the second electrode; the high-voltage direct current power supply is used for transmitting the high-voltage direct current to the first electrode; the pulse generator is used for transmitting a high-voltage pulse signal to the first electrode; the piezoelectric transducer is used for detecting the acoustic signal of the tested insulation material sample, generated by the functions of the temperature gradient field, the high-voltage electric field and the high-voltage electric pulse, and is used for converting the acoustic signal into an electrical signal to output. The invention is used for measuring the distribution of the space charges in the high-voltage direct current power equipment insulation in the temperature gradient field.
Owner:XI AN JIAOTONG UNIV

Indicating light status real time monitor and identification method for power equipment fault indicator

The invention relates to the power distribution net monitoring field and provides a real-time state monitoring recognition method for indicator lights of a power device fault indicator. In the method, digital video signals collected by image collecting equipment of a camera, and the like are processed; video frames are extracted from the video signals; monitoring targets are determined, that is the target region of each indicator light in the video frames, and corresponding numbers are distributed; the pixel color change and the intensity roughness of each indicator light in the target regions of two adjacent frames are used for identifying the flash alarming of the fault indicator; specific conditions of faults are determined according to the identified target numbers of the flash alarming and the combinations thereof; the result is real-timely transmitted to a backstage by a distribution communication network to remind working personnel of the fault happening. The real-time state monitoring recognition method realizes the real-time monitoring recognition alarming for the light state of the fault indicator of the power equipment, ensures the reliability of a system, facilitates the installation and the modification of the system and guarantees the safety of installing and maintaining personnel.
Owner:HUAZHONG UNIV OF SCI & TECH

Machine room power environment centralized monitoring system

Disclosed is a machine room power environment centralized monitoring system. The system comprises a monitoring management center, and a power equipment monitoring system, a machine room environment monitoring system, a video monitoring system and a machine room safety protection monitoring system which are connected with the monitoring management center through a communication network, wherein the monitoring management center is used for performing centralized monitoring management on the environment and power of a machine room, receiving various real-time data of the machine room, displaying a monitoring picture, realizing real-time processing analysis, storage, display and output functions of monitoring data, processing all alarm information, recording alarm events, outputting alarm content through telephone voice or mobile phone short messages and the like and sending control commands of management personnel to the power equipment monitoring system, the machine room environment monitoring system, the video monitoring system and the machine room safety protection monitoring system which are arranged in the machine room. The machine room power environment centralized monitoring system solves the problem of incapability of omni directional monitoring of the environment of the machine room by use of a conventional machine room monitoring device, ensures stable operation of machine room equipment and safety of the machine room, and has a positive promotion significance on modernization of maintenance of power supply equipment.
Owner:RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1
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