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58results about How to "Realize collaborative operation" patented technology

Information interaction method and system for distance education

The invention discloses an information interaction method and system for distance education. The method is characterized by comprising the following steps of: converting the first interaction information from a teaching resource supply end into a first reduced instruction; transferring the first reduced instruction to one or more user ends through the network; reproducing the first reduced instruction as the first interaction information at one or more user ends; and displaying the first interaction information at one or more user ends. Through the invention, compared with the video mode of traditional distance education, the cooperative operation of a teacher and students on the courseware is realized, and the interactivity (particularly real-time interactivity) between the teacher and the students is enhanced. By effectively reducing the transmission quantity of the interaction data, the occupation of network bandwidth and the storage space of courses are greatly reduced. Meanwhile, the method and system disclosed by the invention facilitate the inquiry of interaction information in the distance education course.
Owner:成都远策数码科技有限公司

Experimental comprehensive control and management system and method

The invention discloses an experimental comprehensive control and management system, and belongs to the technical field of engineering experiments. The system is composed of an operation control layer, a video / audio monitoring and scheduling layer, a data exchange transmission layer, a device operating layer and a power distribution control and management layer. Remote control, state setting and data information exchange are conducted by the operation control layer on devices in the device operating layer through the data exchange transmission layer, and the data information of the devices inthe device operating layer is stored; the operation control layer is connected with the video / audio monitoring and scheduling layer so as to conduct transmission and information sharing on the data information of the devices in the device operating layer and an airplane function system undergoing experiments through audio signals and video signals; the operation control layer is connected with thepower distribution control and management layer, and power is supplied to the devices and the power supply operation states of the devices are monitored through the power distribution control and management system. The intelligent, networked, informational and digitized experimental comprehensive control and management technical scheme is adopted, the experimental efficiency is improved, and theexperimental period is shortened.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Cooperating method, equipment and system of terminal

The invention provides a cooperating method, equipment and system of a terminal. The cooperating method of the terminal comprises the following steps: receiving an operation requesting message sent by a first terminal, wherein the operation requesting message carries a mark of a second terminal; judging whether the operation requesting message accords with a pre-set standard or not; if judging that the operation requesting message accords with the pre-set standard, sending an operation announcing message corresponding to the operation requiring message to the second terminal according to the mark of the second terminal, so as to execute operation treatment by the second terminal according to the operation announcing message. With the adoption of the cooperating method, equipment and system of the terminal disclosed by the invention, cooperation between the different terminals is realized.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Virtual practical training operating system for lifting of main shaft of coal mine

The invention discloses a virtual practical training operating system for lifting of a main shaft of a coal mine. The virtual practical training operating system for lifting of the main shaft of the coal mine comprises an upper computer module, a lower computer module and a digital-to-analogue module. An equipment operating platform is manufactured according to the proportion of 1:1 with the virtual reality technology, the three-dimensional animation technology, the computer control technology and the like, the underground equipment operating environment reappears, the equipment working principle and actions are simulated, underground equipment is carried to a laboratory, multi-person cooperating of the equipment can also be achieved, and the training mode of equipment operating of the coal mine is radically changed. The virtual practical training operating system for lifting of the main shaft of the coal mine is used for simulation training of a coal mine main shaft lifting system, can achieve co-simulation training of an elevator driver and a shaft bottom coal bunker signalman and is strong in visualization, good in training effect and capable of reducing the training cost. In addition, the virtual practical training operating system for lifting of the main shaft of the coal mine is simple in structure, convenient to operate and capable of achieving co-simulation training of the elevator driver and the shaft bottom coal bunker signalman.
Owner:HENAN POLYTECHNIC UNIV

Electric transmission line deicer

The invention discloses an electric transmission line deicer. The electric transmission line deicer comprises at least two deicing machines arranged on an electric transmission cable, and each two adjacent deicing machines are connected with each other through a rope or a connecting plate. Every deicing machine comprises a deicing mechanism, a power mechanism, a feeding mechanism and a shell, the deicing mechanism and the feeding mechanism are connected with the power mechanism, the deicing mechanism comprises a deicing wheel and a deicing drive mechanism, the deicing wheel is in the shape of a ring less than 360 degrees, a minimum distance at a notch of the deicing wheel is greater than a diameter of the electric transmission cable, and a deicing knife is arranged on the deicing wheel. Every deicing drive mechanism comprises a power wheel A, two intermediate wheels and four planet wheels, wherein the four planet wheels mesh with the deicing wheel, each intermediate wheel meshes with two of the four planet wheels, the power wheel A meshes with the two intermediate wheels and is connected with the power mechanism, and a meshing area of the deicing wheel and the planet wheels is greater than 180 degrees. The notches of the deicing wheels can allow the electric transmission cables to pass through, and the electric transmission line deicer can clamp the external portions of the electric transmission cables.
Owner:吴桐

Application synergy method based on status bar icon and communication terminal

InactiveCN103365524AEasy to useImprove program execution efficiencyInput/output processes for data processingComputer engineeringStatus bar
The invention belongs to the technical field of communication and provides an application synergy method based on a status bar icon. The method includes: acquiring an synergy operation instruction between the status bar icon and application identification; performing synergy operation on the first application corresponding to the status icon and the second application corresponding to the application identification; wherein the application identification includes a desktop application icon, a status bar icon, a file icon or application entry, and the like. The invention further provides a communication terminal. By the method, synergy operation of the application of the status bar icon and the application of the application identification is achieved, application use is facilitated, application execution efficiency is increased, and user experience is increased.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD

Detecting system capable of accurately acquiring ECL (electrochemiluminescence) spectral information

The invention relates to a detecting system capable of accurately acquiring ECL (electrochemiluminescence) spectral information. The detecting system comprises an electrochemistry equipment unit, an ECL radiation generation device unit, a spectrum detection device unit and a data processing and control unit, wherein the ECL radiation generation device unit comprises an ECL cell as well as a working electrode, a reference electrode and a counter electrode which are connected with the electrochemistry equipment unit; the spectrum detection device unit comprises a collection objective lens and a CCD grating spectrometer; the ECL radiation generation device unit and the collection objective lens are arranged in a cassette, a luminous surface of the working electrode faces the collection objective lens, and the focus of the collection objective lens coincides with an entrance slit of the CCD grating spectrometer; the cassette is directly connected with a fixing plate of the entrance slit, and a detecting system light path is isolated from the outside; the CCD grating spectrometer and the electrochemistry equipment unit are triggered through TTL (transistor transistor logic) signals to realize synchronous operation, and the acquired electrochemical signals and ECL spectrum signals are synchronously input into the data processing and control unit.
Owner:SHANDONG UNIV

Human hand and dexterous hand coordinated servo operating system and method based on multi-information fusion

The invention discloses a human hand and dexterous hand coordinated servo operating system and method based on multi-information fusion. The system comprises human hand flexible stretchable sensors, dexterous hand flexible stretchable sensors, flexible force touch sensors, a wireless transmission module, a dexterous hand control module and a computer module. The computer module comprises a gesturecapture module, a gesture mapping module and a grabbing state recognition module. The flexible stretchable sensors are arranged at the joints of a dexterous hand of a robot and at the joints of a flexible glove worn on a human hand, the force touch sensors are arranged at the positions of finger tips of the dexterous hand, the situation that human hand and dexterous hand operating gestures are precisely coordinated and the grabbing state of the dexterous hand on target objects is sensed can be achieved, and the human hand is supported to control the dexterous hand to stably grab the target objects.
Owner:HEFEI UNIV OF TECH

Waste fan blade pyrolysis recovery system and working method thereof

ActiveCN113046107AIndependent and flexible structureHarmlessProductsReagentsFan bladeCirculating fluidized bed boiler
The invention discloses a waste fan blade pyrolysis recovery system and a working method thereof, and belongs to the technical field of resource recovery. The waste fan blade pyrolysis recovery system comprises a crushing system, a circulating fluidized bed boiler system, a pyrolysis reactor, a material collecting and conveying device, a pyrolysis gas-solid separation system and a cracking oil separation system. According to the invention, composite materials in waste blades can be effectively cracked, cracking oil generated by cracking can be recovering, cracking gas is pumped to a hearth to be effectively incinerated, heat value contained in the cracking gas is effectively utilized, pollutants generated in the combustion process can be discharged in a standard reaching mode by means of an environment-friendly device arranged in an original boiler system, and a pyrolysis reaction in a pyrolysis reactor under an anoxic atmosphere effectively avoids the potential problems of dioxin generation and emission, and the like caused by direct incineration of the waste leaves, so that harmless and resourceful treatment of the waste leaves is completely achieved; and before the comprehensive recycling technology of the blade material is mature and utilized on a large scale, the influence of the waste blade on the environment and the like can be effectively solved, and good environmental protection benefits and economic benefits are generated.
Owner:HUANENG CLEAN ENERGY RES INST

Unmanned aerial vehicle control method and device, unmanned aerial vehicle, system, and storage medium

An unmanned aerial vehicle control method and device, an unmanned aerial vehicle, a system, and a storage medium, the method comprising: generating a flight strategy for unmanned aerial vehicles in an unmanned aerial vehicle group (S201), the flight strategy comprising a flight instruction for instructing the unmanned aerial vehicles to fly to a target position at a target time; sending flight information to the unmanned aerial vehicles in the unmanned aerial vehicle group (S202), the flight information comprising the generated flight strategy; performing clock synchronization processing on the unmanned aerial vehicles in the unmanned aerial vehicle group, so as to set a reference time for the unmanned aerial vehicles (S203); and sending a takeoff instruction to the unmanned aerial vehicles in the unmanned aerial vehicle group (S204), the takeoff instruction being used for triggering the unmanned aerial vehicles to fly, with the reference time as a standard reference time and according to the instruction of the flight strategy, to the target position at the target time. The method achieves the coordinated operation of unmanned aerial vehicles in an unmanned aerial vehicle group, improving the efficiency of the unmanned aerial vehicle group executing a task.
Owner:SZ DJI TECH CO LTD

Polygeneration system of thermoelectric hydrogen based on urban natural gas

The invention discloses a polygeneration system of thermoelectric hydrogen based on urban natural gas, comprising a natural gas reforming hydrogen production subsystem, a micro gas turbine power generation subsystem and a solid oxide fuel cell power generation subsystem, the natural gas reforming hydrogen production subsystem comprises a desulfurization device, an ejector, a reformer, a water gasshift reaction device and a palladium membrane purification device connected in sequence, the micro gas turbine power generation subsystem comprises a compressor, a combustion chamber, a turbine and agenerator connected in sequence, and the solid oxide fuel cell power generation subsystem comprises a solid oxide fuel cell. The purpose of the invention is to provide a polygeneration system of thermoelectric hydrogen based on urban natural gas, which organically combines the natural gas reforming hydrogen production technology, the micro gas turbine technology and the solid oxide fuel cell technology, and improves the overall utilization efficiency of heat energy.
Owner:BEIJING GAS & HEATING ENG DESIGN INST

Cloud access system and method based on wireless communication module

ActiveCN105871991ARealize collaborative operationImprove thread scheduling effectTransmissionThread schedulingHome appliance
The invention provides a cloud access system and method based on a wireless communication module. The cloud access system based on the wireless communication module comprises the wireless communication module, and cloud servers and a household appliance which communicate with each other through the wireless communication module, wherein the wireless communication module comprises a serial data receiving and sending thread used for communicating with the household appliance, a network data receiving and sending thread used for communicating with the cloud servers, a business logic thread used for carrying out information exchange with the serial data receiving and sending thread and the network data receiving and sending thread to control information received and sent by the serial data receiving and sending thread and the network data receiving and sending thread, and a main thread used for controlling the serial data receiving and sending thread, the network data receiving and sending thread and the business logic thread. Through the cloud access system and method, cooperation of multiple threads can be realized and a thread scheduling effect in a cloud server access process is effectively promoted to be convenient for later function extension of a wireless communication module hardware system.
Owner:MIDEA GRP CO LTD +1

Coal mine ventilator practical training device based on virtual reality technology

InactiveCN103915031AMeans of innovationInnovative training methodsEducational modelsThree dimensional simulationAnimation
The invention discloses a coal mine ventilator practical training device based on the virtual reality technology. The coal mine ventilator practical training device comprises an upper computer coal mine ventilator operation three-dimensional virtual simulation software module, a lower computer coal mine ventilator operating platform module and an upper and lower computer communication control module. The coal mine ventilator practical training device is manufactured according to the actual application of a coal mine ventilator operating platform based on the modern multimedia technology, the virtual reality technology, the three-dimensional animation, the embedded computer control technology and the like, three-dimensional simulation is carried out on the coal mine ventilator operating principle, the control skill, the ventilation path and the like, simulation operation training for coal mine ventilator post workers, signal workers, maintainers and the like is achieved, the sense of immediacy is high, the training effect is good, the coal mine ventilator practical training device is safe and reliable, and the training cost is reduced. In addition, the coal mine ventilator practical training device is simple in structure, convenient to operate, and related personnel and workers of a coal ventilator can carry out theory learning, simulation exercise and on-line examination on the structure principle, starting, stopping, operating, sudden accident processing, daily maintaining and repairing and knowledge skills of the coal mine ventilator.
Owner:HENAN POLYTECHNIC UNIV

Cloud access system and method based on wireless communication module

The invention provides a cloud access system and method based on a wireless communication module. The cloud access system based on the wireless communication module comprises the wireless communication module, a cloud server and a household electrical appliance, wherein the wireless communication module comprises a serial interface data transceiving thread, a network data transceiving thread, a service logical thread, a main thread, an application event callback sub-module and an application event message queue, wherein the main thread is used for controlling the serial interface data transceiving thread, the network data transceiving thread and the service logical thread; the main thread controls the service logical thread through the application event callback sub-module; and the application event message queue is used for receiving an application event message generated by the service logical thread and providing the application event message for the main thread to read. By means of the invention, callback of an application event in the wireless communication module can be realized, such that the application message can be obtained; and thus, the access process of the cloud server is more high-efficiency and convenient.
Owner:MIDEA GRP CO LTD +1

Virtual reality interaction system based on gesture, voice and sight line tracking recognition

The invention discloses a virtual reality interaction system based on gesture, voice and sight line tracking recognition, which comprises a voice interaction recognition module, a gesture interactionrecognition module, a visual tracking recognition module and a cooperative processing module, wherein the voice interaction recognition module is used for acquiring voice and generating a corresponding voice operation instruction based on the acquired voice; the gesture interaction identification module is used for acquiring a gesture and generating a corresponding gesture operation instruction based on the acquired gesture; the visual tracking identification module is used for acquiring a sight drop point and generating a corresponding visual selection operation instruction based on the acquired sight drop point; and the cooperative processing module analyzes one or more of the voice operation instruction, the gesture operation instruction and the visual selection operation instruction torealize a user interaction function. Thus, the system can achieve recognition and analysis of the three-dimensional operation instruction, a user can execute multi-dimensional operation command operation in the virtual space, collaborative operation is achieved, and user interaction operation can be completed more conveniently, rapidly and efficiently.
Owner:重庆上丞科技有限公司

Online document cooperation method and device, electronic equipment and storage medium

The invention relates to the technical field of document collaboration, and discloses an online document collaboration method and device, equipment and a storage medium, and the online document collaboration method comprises the following steps: obtaining a sharing permission; according to the sharing permission, data content is displayed on a plurality of terminals, and the terminals cooperate with one another; and displaying different data contents at each terminal. In the collaborative editing environment, the data content displayed on the user interface can be differentiated. Due to the fact that the content permissions and the operation permissions of the multiple users can be set through one permission, the permissions of the different users are different, the different users can cooperate with the same online document based on the corresponding permissions, in this way, when different contents in the online document are shared to the different users, new documents do not need to be repeatedly made, and the user experience is improved. And the collaboration of the online documents is simpler and more convenient.
Owner:ZHUHAI KINGSOFT OFFICE SOFTWARE +2

Embedded multi-program communication method and embedded multi-program communication system

The invention discloses an embedded multi-program communication method and system. The method comprises the following steps: establishing an MQTT server and a plurality of MQTT clients; wherein each MQTT client is configured with an application program; the application program issues an application message to the MQTT server; and the MQTT server forwards the application message to the corresponding MQTT client according to the theme label in the application message. The application message adopts JSON format data, and the JSON format data comprises a message header, a source program theme name, a target program theme name, a frame number, a transmission direction and message content. According to the invention, mutual communication among a plurality of programs can be realized through theMQTT server, and the client does not need to manage a server communication channel, so that the resource occupation can be reduced, and the cooperative operation of the plurality of programs can be realized.
Owner:HEXING ELECTRICAL +2

Torque bar robot automatic welding system for photovoltaic power station

The invention relates to a torque bar robot automatic welding system for a photovoltaic power station. The torque bar robot automatic welding system comprises a robot walking mechanism, large-load and large-spacing position changing machines, torque bar welding jigs and welding robots. The welding robots are arranged at the two ends of the robot walking mechanism respectively and cooperatively work. The torque bar welding jigs are arranged on the two sides of the walking mechanism in the same direction. The two ends of each torque bar welding jig are each provided with one position changing machine. The position changing machines are located at the two ends of the robot walking mechanism and used for coordinating the robots to achieve synchronous welding. The torque bar robot automatic welding system is special for torque bar welding of the photovoltaic power station, it can be guaranteed that two kinds of products can be produced on one set of clamps, production cost and device investment cost are greatly reduced, and the torque bar robot automatic welding system is characterized in that quality is stable, production efficiency is high, and operation is reliable.
Owner:BEIJING XINGBAOLAN ROBOT TECH

Method for suppressing direct current side voltage ripples of alternating current and direct current hybrid micro-grid

The invention belongs to the field of electric power systems, and particularly relates to a method for suppressing direct current side voltage ripples of an alternating current and direct current hybrid micro-grid. In order to solve the problem of direct current side frequency doubled ripple caused under the condition of voltage imbalance of an alternating current sub-grid, the method considers the alternating current side and the direct current side of the alternating current and direct current hybrid micro-grid cooperatively, and performs primary suppression on direct current voltage ripple on the alternating current side, namely, a negative sequence component compensation strategy is used; secondary suppression is carried out on direct current voltage ripples on the direct current side, that is, an improved direct current active power filter (DC-APF) is used, and the improved DC-APF uses a quasi-proportional resonance controller (QPR) to accurately track frequency doubled pulsation on the direct current side. Meanwhile, an alternating current and direct current hybrid micro-grid model system is built by utilizing MATLAB / Simulink, and a simulation result shows that compared with a traditional method for controlling on an alternating current side or a direct current side, the suppression method disclosed by the invention has the advantages that the direct current voltage ripple content can be reduced by about 4 times, so that the fluctuation of the direct current side bus voltage of the alternating current and direct current hybrid micro-grid can be effectively suppressed.
Owner:ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER +1

Numerical control six-station drilling and reaming integrated machine

The invention relates to a numerical control six-station drilling and reaming integrated machine. The numerical control six-station drilling and reaming integrated machine is characterized in that six part fixtures are uniformly distributed on the circumference adopting the axis of a rotary disc as the circle center; each part fixture corresponds to one station label; limiting devices are arranged on the part fixtures; grooves are formed in the peripheries of the part fixtures; a locating device is arranged at a station of one station label; a cylinder is connected on the locating device; the end part of the cylinder is connected with a locating piece; a rough drilling mechanism, a fine drilling mechanism, a rough reaming mechanism and a fine reaming mechanism are anticlockwire arranged at a station of the station label on the right side of the locating device sequentially; a chip removal mechanism comprises a bracket; the tail end of the bracket is arranged right above the axis of the rotary disc; an air pipe is fixed to the bracket; one end of the air pipe is connected with a chip removal hood; the other end of the air pipe is connected with a chip collection tank through an induced draft fan; a collecting and releasing part is arranged at the tail end of the bracket; and the collecting and releasing part is connected with a clamping gun through a hanging rope. According to the numerical control six-station drilling and reaming integrated machine, the drilling and reaming processing positions are guaranteed accurate, the processing effect is good, and a chip removal protection function is achieved.
Owner:TIANJIN LONGZHI VALVE

Transportation operation monitoring early warning and decision analysis system and method thereof

The invention discloses a transportation operation monitoring early warning and decision analysis system and a method thereof. According to the technical scheme, the system comprises a comprehensive management platform module, and the connecting end of the comprehensive management platform module is provided with an operation monitoring and early warning module, a public service platform module and a decision support platform module. A unified communication platform module, a video monitoring module, a GIS platform module and a service bus module are arranged at the connecting end of the operation monitoring and early warning module, and a function application module is arranged at the input end of the decision support platform module. The traffic transportation operation monitoring early warning and decision analysis system and the method thereof have the beneficial effects that the dynamic monitoring capability of traffic infrastructures is improved, the key supervision and treatment of areas such as traffic hubs are enhanced, the traffic guidance service function is further improved, the traffic transportation safety supervision is enhanced, and major and extra-major accidents are prevented; and emergencies can be effectively handled and handled.
Owner:JIANGSU CHANGTIAN ZHIYUAN TRAFFIC TECH CO LTD

Oil and gas well operation platform intelligent integrated control system

The invention provides an oil and gas well operation platform intelligent integrated control system. The oil and gas well operation platform intelligent integrated control system comprises an intelligent controller, a human-machine interaction module, an emergency stop alarm module and a plurality of operation modules, wherein the human-machine interaction module, the emergency stop alarm module and the operation modules are separately connected to the intelligent controller. The emergency stop alarm module includes an emergency stop device and a sound and light alarm device; and each operation module includes a plurality of sets of servo motors, and the intelligent controller controls the operation modules by controlling the servo motors. Each of the operation modules is further providedwith a limiting unit, the limiting units each include a limiting switch, and the limiting switches are connected with the intelligent controller. The oil and gas well operation platform intelligent integrated control system realizes the intelligent control over an oil and gas well operation platform, realizes the coordinated operation between the system modules through the control over the intelligent controller and an intelligent field bus, and jointly completes the integrated operation of intelligent oil pipe lifting and intelligent oil pipe lowering on the operation platform.
Owner:HAISHENG INDAL GENERAL CORP SHENGLI OIL FIELD

Hole drilling and reaming equipment

The invention provides hole drilling and reaming equipment. The hole drilling and reaming equipment comprises a hole drilling machine, a hole reaming machine, an index plate and an additional installation plate fixedly installed on the index plate. The additional installation plate is provided with a plurality of part clamps, the part clamps are uniformly distributed on the periphery with the axis of the index plate as the circle center, and the central angle between two adjacent part clamps is an integral multiple of the minimum rotation angle of the index plate. The hole drilling machine and the hole reaming machine are distributed on the periphery with the axis of the index plate as the circle center and are located on the upper sides of the part clamps. The central angle between the hole drilling machine and the hole reaming machine is an integral multiple of the central angle between two adjacent part clamps. Along with rotation of the index plate, parts can be accurately moved to the hole reaming machine from the hole drilling machine so as to be reamed, the machining accuracy is improved, the qualification rate of products is increased, and the production efficiency is improved correspondingly.
Owner:CHONGQING YINGANG YITONG TECH

Blockchain robot distribution network and distribution method thereof

The invention discloses a blockchain robot distribution network, which comprises a blockchain distribution network, and is characterized in that the blockchain distribution network comprises a data interaction system, and a logistics demand order release system, a blockchain network response system and a node cost settlement system which perform data interaction with the data interaction system; the blockchain network response system comprises a plurality of blockchain robots which can be mutually butted and interconnected, and each blockchain robot is provided with a robot control system which can receive a logistics demand order, publish the logistics demand order and drive the robot to perform logistics distribution. The invention provides a blockchain robot distribution network, whichcan transfer distribution robots in a blockchain to realize cooperative operation, can realize node splitting charging for distribution services realized in different area stations, and can also realize logistics information implementation tracing.
Owner:SUZHOU DELTA LOGISTICS

Database version control system and method

The invention provides a database version control system and method. The database version control system comprises a database initialization module, a user permission control module, a change log monitoring module, a version comparison module, a production change management module, a database and a version library; according to the database version control system and method provided by the invention, version control of the database is realized, tracking of a change log of the database is facilitated, cooperative operation of multiple persons on the database is realized, and modification tracing of the database is facilitated.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Regional reactive voltage coordination control method and device

The invention discloses a regional reactive voltage coordination control method and device, a terminal and a storage medium, wherein, the method comprises the following steps: acquiring voltage signals of a plurality of virtual synchronous generators; and allocating reactive power to each virtual synchronous generator according to the voltage signal of each virtual synchronous generator. Based onthe voltage deviation signal [delta]Uk of each VSG connected to the power grid, combined with the voltage deviation of other VSGs in the power network, Coordinated distribution of reactive power Qkreffor each VSG, a large-scale power system based on power electronics, a solution to the reactive power distribution problem of multi-variable, multi-area grid-connected virtual synchronous machines ispresented, thus, the defect that the local control local information sharing is difficult in the past is overcome, considering the system state of the surrounding area, decentralized coordination control is carried out to obtain the operation strategy of each VSG, which realizes the cooperative operation from part to whole, avoids the failure of local power supply due to too high or too low output power, and improves the security and stability of the power system.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST EURO GMBH +3

Gas-fired boiler cooperative operation method based on accurate control technology

The invention discloses a gas-fired boiler cooperative operation method based on an accurate control technology, and solves the problems of high boiler fuel consumption, low boiler unit operation efficiency and poor surplus gas power generation economy caused by lack of an effective surplus gas distribution and scheduling system among boilers in an existing mode of cooperative operation of multiple boilers. According to the method, the surplus coal gas of the steel mill is predicted based on a heuristic rule, and then the boiler group is effectively prevented from passively receiving the frequently-changed surplus coal gas by adopting accurately-controlled self-adaptive rectification filtering and efficient utilization based on the surplus coal gas 'stable zone-ladder-shaped domain-zigzagscheduling thought' according to a prediction result. According to the gas-fired boiler cooperative operation method based on the precise control technology, the serious influence of frequent and severe fluctuation of surplus gas pressure on a generator set can be avoided, cooperative operation between boiler groups and efficient utilization of gas are achieved, the boiler operation efficiency andthe generator set power generation capacity are improved, and power generation burnup is reduced.
Owner:NANJING HANHUA FLUID TECH CO LTD
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