17049 results about "Power substation" patented technology

A broadband access transmission network integrating the functions of electric power network, communication network, TV network and Internet relates to network transmission. It includes a broadband transmission network of 10 KV power distribution network and a broadband transmission network of low-voltage power distribution network. These two transmission networks are connected via distribution transformers and optical fiber connectors. The broadband transmission network of 10 KV power distribution network is composed of optical compound power lines, wires, transformer substations, machine rooms, taps, insulating jackets, insulating waterproofing outer jackets and optical fiber connectors. The broadband transmission network of low-voltage power distribution network is composed of optical compound power lines, coaxial cable compound power lines, taps, insulating jackets, optical access points, distributors, modems and two-way amplifiers. The invention can perform high-speed broadband communication and power transmission on the same compound wires. It utilizes the existing power network sufficiently and prevents the cost of rebuilding the communication network, cable TV network and Internet, and can simultaneously perform building, operating, maintaining and managing of these networks.

A system and method for managing the stored power of a plurality of vehicles connected to the power grid is provided. In one embodiment the method includes determining location information of each of the plurality of vehicles connected to the power grid, determining that a demand for power in a portion of the power grid has reached a power threshold, determining that the location information associated with a set of the plurality of vehicles satisfies a similarity threshold with the portion of the power grid, determining that a subset of the set of vehicles has stored power that satisfies a power availability threshold, and transmitting a command to at least one vehicle of the subset of vehicles to discharge power onto the power grid. The portion of the power grid may comprise a medium voltage power line or a substation.

The invention provides a centralized digital transformer substation system. By adopting various new technologies and new devices, a new level centralized multifunctional intelligent device and a system are realized, thereby laying the foundation for the construction of a digital electric network. Based on an IEC 61850 standard, high speed Ethernet exchange and a virtual local area network (VLAN) technology, the system constructs a digital transformer substation information model and a communication network, and realizes sharing of information of the whole substation. On the basis, function integration of a digital transformer substation is realized and a system structure is simplified. A bay level multifunctional intelligent electronic device, i.e. a system controller integrates the functions of protection, measurement and control, wave recording and the like into a whole, and greatly simplifies the bay level device and wire connection; a process level intelligent terminal integrates the functions of a merging unit and an intelligent operation box into a whole; and all devices of each level provide models and interfaces conforming to the IEC 61850 standard.

A windfarm system is provided that is optimized for minimizing electrical loss. The windfarm system includes a plurality of wind turbine generators and a collector system including a conductor or network of conductors. The collector system also including a plurality of transformers with one or more transformers connected between each wind turbine generator and the conductors, and a substation transformer connecting the windfarm collector system to the electrical grid. The windfarm system also includes a monitoring system for monitoring the windfarm system electrical output and thermal condition, and outputs of the individual wind turbine generators. A control function may include voltage and real and reactive power commands to the individual wind turbine generators. The control function incorporates an algorithm whose technical effect is minimizing electrical losses for the windfarm system.

The invention relates to a system for power grid thunderstorm disaster warning based on recognition and forecast. The system is characterized by comprising a thunderstorm forecast information module, an early warning data analyzing module, a power grid thunderstorm risk early warning module and a display module all connected with one another in sequence. The invention further relates to a method which adopts the system to perform power grid thunderstorm disaster early warning. The system and the method utilize region thunderstorm characteristic and regional power grid characteristic, and combine the anti-thunderstorm design parameters and the on-site geographical conditions of power grid equipment including various transformer substations, electric transmission lines, pole and the like, so as to realize real-time automatic monitoring on the thunderstorm disaster, perform actual condition analysis quantitatively at a specific time and location and near-disaster early warning and perform fine instructional functions on production and scheduling of power grid.

An automated meter reading system, communication and control for automated meter reading, a meter data collector, and associated methods are provided. The system includes at least one utility meter, at least one meter sensor interfaced with the utility meter, a meter data collector positioned adjacent the utility meter and positioned to receive data from the at least one sensor, and a remote automatic meter reading control center positioned to receive data from the collector such as through RF or other types of communication to gather and process usage reading data. Meter usage data is obtained by the collector from the meter sensor, date and time stamped, and stored in the collector until directly transmitted to the control center or a substation if within range and not blocked or impeded by a physical structure or other obstacle. If the collector is not in range, then the data is forwarded to another collector associated with a location closer to the control center or substation.

The invention relates to a circuit device used for providing distant indication for conditions of a distribution network and carrying out distant control on a switching device in the distribution network, in particular to an integrated monitoring system information platform for a transformer substation. The integrated monitoring system information platform comprises an integrated information platform body and a station level advanced application module. The integrated information platform body comprises an application-independent graphic base system, a real-time database based on the unified modeling technology, a data normalization module, a data verification module, a data service module, a file service module and a historical library storage service module. The station level advanced application module comprises a graphic, model and library integrated module, a source side maintenance module, a primary equipment status visualization module and a one-button sequential control module. According to the integrated monitoring system information platform, by arranging and integrating functions of various subsystems and carrying out data structure reconstitution on the unified platform, the use ratio and interactivity of data are improved, the reliability, integration and maintainability of the system are improved, and new functional subsystems can have access to the transformer substation conveniently.

The invention discloses an improved multi-instrument reading identification method of a transformer station inspection robot. In the method, first of all, for instrument equipment images of different types, equipment template processing is carried out, and position information of min scales and max scales of each instrument in a template database. For the instrument equipment images acquired in real time by the robot, a template graph of a corresponding piece of equipment is scheduled from a background service, by use of a scale invariant feature transform (SIFT) algorithm, an instrument dial plate area sub-image is extracted in an input image in a matching mode, afterwards, binary and instrument point backbone processing is performed on the dial plate sub-image, by use of rapid Hough transform, pointer lines are detected, noise interference is eliminated, accurate position and directional angel of a pointer are accurately positioned, and pointer reading is finished. Such an algorithm is subjected to an on-site test of some domestic 500 kv intelligent transformer station inspection robot, the integration recognition rate of various instruments exceeds 99%, the precision and robustness for instrument reading are high, and the requirement for on-site application of a transformer station is completely satisfied.

A system and method for managing the distributed generation of power from a plurality of vehicles is provided. In one embodiment, the method includes determining location information for the plurality of vehicles, determining that a demand for power in a first portion of the power grid has reached a power threshold, determining that the location information associated with a set of the plurality of vehicles satisfies a similarity threshold with the first portion of the power grid, and transmitting a request to a first group of vehicles in the set of vehicles to discharge power. In addition, the method may include receiving a response from at least some of the electric vehicles to which a request was transmitted, and determining whether to request the discharge of power from additional vehicles in the set of the plurality of vehicles based, at least in part, on the number of responses containing a confirmation of the discharge of power. The portion of the power grid may comprise a medium voltage power line or a substation.

The invention discloses an inspection system based on a mobile inspection apparatus of a transformer station and an inspection method thereof. The inspection system comprises a monitoring center; and the monitoring center is connected with at least one station-level mobile inspection apparatus intelligent inspection system of a transformer station through a network. And all station-level mobile inspection apparatus intelligent inspection systems include at least one base station. Meanwhile, an environmental information collection subsystem and fixed point auxiliary monitoring subsystems that are installed at places needing monitoring equipment in the transformer station are arranged in the transformer station. A detection unit comprises an infrared detection unit and an ultraviolet detection unit; and the ultraviolet detection unit is composed of an ultraviolet video server and an ultraviolet detection apparatus. According to the invention, an inspection path is optimized; the safety protection is good; and the intelligent degree is high; moreover, the inspection system has advantages of whole time fault detection and seamless video monitoring; and a novel technical detection means and omnibearing safety guarantee are provided for an intelligent transformer station.

The invention discloses a testing and verifying system appropriate for an intelligent transformer substation and a verifying method. The system comprises an upper computer and an embedded system lower computer that comprises a collecting plate, a signal plate, a data plate and four sub-plates of a synchronization plate. The signal plate, the data plate and the synchronization plate are supplied with power by an external adapter DC5V. The synchronization plate provides synchronization pulse signals to other sub-plates. Ethernet of the upper computer is connected with the signal plate of the upper computer, the intelligent transformer substation, and a process layer, an interval layer and a station layer network of a digital transformer substation by an RJ45 twisted-pair through an industrial switchboard. The testing and verifying system appropriate for the intelligent transformer substation is convenient to detect and verify the electrical capacity of current intelligent transformer substation and digital transformer substation and improves the debugging speed of the intelligent transformer substation and digital transformer substation greatly so as to provide good technical assurance to construction of the intelligent transformer substation and digital transformer substation and lay a solid foundation for safe and stable operation of the intelligent transformer substation and digital transformer substation.

The invention discloses a binocular vision navigation system based on an inspection robot in a transformer substation. The binocular vision navigation system comprises a robot body, an image collecting system, a network transmission system, a vision analysis system, a route planning system and a robot control system, wherein the image collecting system is arranged in front of the robot body and used for collecting environmental information images of a forwarding road and then uploads the environmental information images to the vision analysis system on the basis of the network transmission system; the vision analysis system detects a barrier in the road area of the transformer substation according to binocular image information collected by the image collecting system and inside and outside parameters of a camera; the route planning system plans a route according to environment information detected by the vision system and timely adjusts the walking routes of the robot, so that the robot can be prevented from being collided with the barrier; and the robot control system controls moving of the robot body according to the route planned by the route planning system. The invention simultaneously discloses a vision navigation method. By means of the system and the method, the self-adaptation ability of the robot to the environment is improved, the autonomous navigation function of the electric robot is really realized in the complicated outdoor environment, and the flexibility and the safety of the robot are improved.

The invention provides a hierarchical protection control system facing a regional power grid. The hierarchical protection control system comprises an in-situ level protection device, a substation area protection control system and a wide area protection control system, wherein the in-situ level protection device is configured according to a traditional protection scheme and adopts a direct sampling direct trip mode or a direct sampling network trip mode; the substation area protection control system is configured according to substations or voltage classes, utilizes an information sharing advantage to improve the backup protection performance, realizes protection functions of backup protection, redundancy protection, failure protection, and the like, and control functions of spare power automatic switching, low-frequency and low-voltage load shedding, and the like, and adopts a network sampling network trip mode; and the wide area protection control system is configured according to areas, realizes functions of wide area backup protection, self-adaptive adjustment of protection fixed values, low-frequency and low-voltage load shedding, power grid state evaluation, safety pre-warning, and the like, and realizes the interaction and the sharing of information of intelligent transformer substations in the areas through a wide area communication net. The hierarchical protection control system has the advantages that the reliability and the selectivity of relay protection can be improved on the basis that protection configuration of the existing power grid is not changed, so high requirements of power grid interconnection, new energy access, and the like on relay protection are satisfied.

The invention discloses a control system for a transformer substation patrol robot. The control system comprises a core processor, an information collection module, a communication module, a robot motion control module, an analysis module and a navigation system module; the core processor comprises a GPU and an ARM processor, the information collection module is used for collecting related information of robot patrolling, the communication module is used for transmitting the related information of robot patrolling and related operation instruction information of workers, the robot motion control module is in data connection with the ARM processor and used for controlling walking of the robot, the analysis module is in bidirectional data connection with the GPU and used for automatically recognizing whether equipment is abnormal or not according to the collected image information, the navigation system module is in bidirectional data connection with the ARM processor and used for positioning the position of the robot in real time and planning the optimal path according to a patrolling task. The control system can accurately navigate and position the robot, collect the working state of electric equipment and return the equipment state and the working state of a robot body to a control center in real time.

The invention relates to an intelligent warning and fault analysis realizing method applied to an intelligent transformer substation monitoring system, which belongs to the technical field of transformer substation automation. An intelligent warning and fault analyzing module is used for analyzing various pieces of information reported by a measurement and control device, a protective device and a fault recorder, generating a fault analysis report by combining topology with every fault in an automatic identification fault reasoning model, and submitting the generated fault analysis report to a scheduling master station at a master station end. The workload of personnel on duty is greatly reduced, and the fault processing efficiency is improved. The requirement of an intelligent transformer substation on an intelligent warning and fault analysis system can be met, faults can be quickly judged and analyzed, and processing schemes can be provided so as to assist the personnel on duty in quickly processing the faults, and reduce the loss caused by the faults.

The invention provides a detection method and a detection system of an intelligent relay protection device. Aiming at the situation that compared with the prior art, dynamic properties of the relay protection device cannot be detected effectively in an intelligent substation spot, and starting from the feature of sharing of digitalization and informatization of an intelligent substation secondary system, the detection method which regards a digit simulation system as a data source and regards synchronous working of a plurality of digitized relay protection testers is provided and the detection system of the intelligent relay protection device is constructed. Various operating situations which probably happen in a transformer substation can be simulated according to an actual electric topological structure of an intelligent substation and device parameters construction and simulation models in a lab, simulating calculation can be conducted, transient test data which have higher similarity with the actual operating situations can be achieved by transforming, the transient test data can be output in the intelligent substation spot in a playback mode, and detection of the dynamic properties of the relay protection device and checkout work of protection definite value can be carried out.

The invention discloses an automatic test system for an intelligent substation spacing apparatus in the technical field of power systems, comprising: a test system control module and a test terminal connected with the same. In the system, signal authentication and input and output of test data are finished by establishing an input/output signal system at outside of the apparatus; signal pair point test of an apparatus station control layer is finished by a simulated MMS (Multimedia Messaging Service), analog input of the input signal of the apparatus is finished by a Goose/SMV process layer simulator, and behavior result of the apparatus is judged by monitoring a test closed loop network message; and different target test data object test cases are configured, the test data is input via the simulator so as to monitor behavior and response of the apparatus.

The invention discloses a transformer substation patrol robot based on multi-sensor data fusion picture composition and a method thereof. The transformer substation patrol robot comprises a robot moving platform, wherein an industrial control machine, a speedometer, a speed measuring sensor, a vision acquisition device and a laser radar are arranged on the robot moving platform; the industrial control machine is connected with a journey calculation device, the vision acquisition device and the laser radar respectively; the journey calculation device is connected with the speed measuring sensor. The transformer substation patrol robot has the beneficial effects that the vision image processing position and the laser radar synchronization positioning and map establishment are two decision positioning modes, journey calculation device track plotting is a relative positioning mode, combined action of the two absolute positioning modes in picture composition is successfully achieved, the relative positioning mode is corrected by using the absolute positioning modes, and continuous correction of the journey calculation device is realized.

Disclosed is a fault diagnosis device for diagnosing a fault in a bay Intelligent Electronic Device (IED) for a substation automation system, which includes an online IED diagnosis device and a backup IED. The online IED diagnosis device includes an IED selection unit, an IED switch unit, a fault diagnosis, and a result display unit. With reference to a Substation Configuration Description (SCD) file, the online IED diagnosis device designates an IED to be tested, and extracts backup information for the IED to be tested. A backup IED replaces the operation of the IED to be tested based on the extracted backup information. Further, the online IED diagnosis device determines the occurrence or non-occurrence of a fault in the IED to be tested by analyzing response information received in response to transmission of a test pattern to the IED to be tested.