42 results about "Access Grid" patented technology

Systems and methods for providing a development and deployment platform for Software as a Service (SaaS) providers are disclosed. The platform may provide an application programming interface (API) through which customers may configure virtualized grids of language-level virtual machines (VMs), networks, and storage resources. A grid may be horizontally scalable and programmatically configurable by a customer and / or customer code. The platform may allow dynamic scaling of resources (up and down) to match changing demands, by allowing customers and / or customer code to programmatically alter their own system level structure at runtime, through the API. The grid may be accessed by both on-grid and off-grid processes, through internal and external connectivity resources provided by the platform. The platform may provide common utilities for end-user services, deployment operations, and development tasks (e.g., debugging), and may include frameworks and macro-components (e.g. web servers). The platform may host long-running Internet-based services and / or one-shot computational services.

A method, apparatus, and computer instructions for authorizing a user to access grid resources. A request is received from the user to access a resource on the data processing system. This request includes a certificate. An authentication process is performed using the certificate when the request is received. In response to successfully authenticating the user in the authentication process, a first host name for the certificate is requested from a trusted source. A reply containing the first host name is received. Access to the resource is provided if the first host name returned by the trusted source matches a second host name for the user from which the request originated.

The invention discloses a digital museum grid and the construction method thereof; the digital museum grid includes a grid portal device, a job dispatching and an execution management device, an information center, a resource retrieval service device, an ontology service device, a heterogeneous database accessing and integration device, a grid monitoring device and other devices. The method includes: establishing an ontology device to establish the instantiation relation between digital museum resource and the global ontology by semantic labeling, establishing the heterogeneous database accessing and integration device to provide a global uniform view and a uniform access interface of heterogeneous database resource for the users of grid system recourse, establishing the grid resource monitoring device to collect original state data of monitoring nodes and classify the data into uniform standard information format for visualization, establishing the grid portal device to provide grid resource accessing and service, application of execution and monitoring grid, and a service environment supporting the cooperative work of users. In the process of application, the invention utilizes grid middleware and receives job request through a grid job dispatch device to fulfill job dispatching and execution information management and to generate and manage the resource retrieval service device so as to index a grid service device through an information service device. The invention can realize the mutual communication and organic sharing of the massive digital museum resources in multidisciplinary field and eliminate the isolated island phenomena of sample information.

An apparatus, system, and method are disclosed for quick access of stored removable storage media. The apparatus includes an automated data storage library, a communications processor, and a media interface module. The automated data storage library has a plurality of storage cells, each storage cell having a media interface module for communicating with removable storage media. The communication processor module communicates with the media interface module of each storage cell. A grid bus couples the media interface module and the communication processor module. The system includes a storage area network coupling multiple hosts to at least one automated data storage library. The method includes communicating with the removable storage media, communicating with the media interface modules, and coupling the media interface modules to the communication processor module.

The invention provides a method used for realizing an enhanced video service mode of an access grid. The method includes the following steps: registering a 3d geometric mode of the gridding service result to a real video scene of the access grid, so as to generate an enhanced video stream which compounds the geometric mode of the gridding service result with the video sequence of the access grid; then according to application characteristics of the gridding, transmission ways of the enhancement video information are given, including a PTPR way and a PTCR way, and the sharable enhancement video stream is provided for each user who visits the gridding; and finally, a conversation notice protocol and a conversation description protocol are utilized to manage the enhancement video conversation of the visiting gridding. By using the invention, the users are able to operate the 3d geometric mode of the gridding service result in a cooperation work space of the access grid, thus completing the cooperation work tasksbased on the grid service result in the access grid environment.

The invention discloses a distributed photovoltaic access grid comprehensive evaluation system and method. The system comprises a database module, a reliability evaluation module, a grid loss evaluation module, an equipment utilization rate evaluation module, a power quality evaluation module and a distributed photovoltaic access grid comprehensive evaluation module. The system can realize functions of reliability index calculation, grid loss index calculation, equipment utilization rate index calculation and power quality index calculation, and calculates a comprehensive evaluation score according to a configured weight, and evaluates influences imposed on a grid by distributed photovoltaic access. The system disclosed by the invention replaces a tedious manual calculation and evaluation process, and can comprehensively evaluate the influences imposed on the grid by the distributed photovoltaic access, thereby providing help for designing and decision-making of distributed photovoltaics.

Various exemplary embodiments are a method and apparatus for selecting an access solution in a Grid network including one or more of the following: receiving an application request, the application request having an associated application cost; identifying a plurality of Grid endpoints for which the application cost is not more than an amount of available resources at each of the plurality of Grid endpoints; computing, for each of the plurality of Grid endpoints, a lowest cost path to access the Grid endpoint; and selecting, as the access solution, a first Grid endpoint of the plurality of Grid endpoints. Various exemplary embodiments are a method of selecting aback-up access solution in a Grid network including one or more of the following: ordering a first plurality of couples according to one or more metrics; determining a strategy; and calculating a share of resource load for each couple in the strategy.

The invention discloses an electric vehicle access grid charger capable of improving charging electric energy quality and a method. Zero crossing detection on access voltage and phase locking on a phase-locked loop are carried out in a control link, a standard sinusoidal instruction signal is formed, a corresponding PWM pulse signal is generated, the amplitude of a signal needed by a pulse signal generation circuit has nothing to do with the waveform amplitude of power voltage, and influences brought by voltage fluctuation at a power supply side or distortion can be avoided. The charger and the method of the invention are applicable to situations in which intermittent new energy sources such as wind energy and tidal energy are integrated to the electric vehicle for charging, influences caused by voltage distortion or amplitude fluctuation of the intermittent new energy sources can be effectively reduced, impact on power electronic devices of the charger is lessened, damages to a rechargeable battery are reduced, and the service life of the charger and the service life of the battery are improved.

Bias regulation grid plasma immersion ion deposition DLC method. It involves plasma immersion ion deposition DLC method. The invention aims to solve the problems of poor binding force, difficult adjustment and control of film performance and non-uniformity of DLC film deposited on large or complex parts existing in the existing MPIID method for depositing DLC ​​films. Method: 1. Put the grid and the workpiece in the vacuum chamber, put the workpiece on the sample rack in the grid, insulate the grid from the workpiece, connect the grid to the high-voltage pulse power supply of the grid, and connect the workpiece to the high-voltage pulse power supply of the workpiece; 2. Splash the workpiece 3. Plasma nitriding treatment; 4. Sputtering etching treatment; 5. Preparation of SiC transition layer; 6. Preparation of bias control thin film. The invention is used for preparing DLC ​​film deposited by plasma immersion ion deposition of bias voltage control grid.

The invention discloses a protection performance evaluation system and method at a same-tower four-circuit power transmission line. The method comprises: inputting a line structure parameter, access grid information and protection incorrect evaluation factor; controlling turning on or off of all switches of a first group to a fifth group of fault switches to realize controlling of a fault type; for any fault type, setting line lengths and fault point positions between double circuit towers and four-circuit towers; according to voltage levels and locations of all power supplies, adjusting parameters of corresponding transformers and impedors; and carrying out statistics of fault types and line protection actions at occurrence of faults at different positions and carrying out weighted statistics and evaluation on faults and protection actions of all power transmission lines, thereby obtaining a line protection performance quality evaluation report. According to the invention, various fault feature influence factors are considered comprehensively; some operation ways that may cause inaccurate protection actions easily can be avoided; protective setting and key prevention are realized; protection strategies of manufacturers can be protected; and the good support can be provided for secure and stable operation of the power grid.

The invention relates to a power system frequency modulation controllable electric automobile quantity dynamic change simulation method based on Monte Carlo, and belongs to the technical fields of electric automobiles and an access grid thereof. The method comprises the following steps: firstly, initializing relevant parameters of electric automobiles, secondly, judging types of the electric automobiles, and determining in / out controllable state time tables of all the electric automobiles, thirdly, making statistics and analyzing the time tables, so as to obtain the controllable electric automobile quantity N'in (ti) and the out controllable electric automobile quantity N'iout (ti) within every moment in a region, fourthly, computing the cumulative quantity of automobiles at in / out controllable state, and fifthly, computing the quantity of controllable electric automobiles. The method can properly compute the quantity of the controllable electric automobiles in the region, so as to obtain the quantity dynamic change of various types of the controllable electric automobiles participating in frequency modulation, meanwhile, the method fills the gap in the technical filed, and lays a solid theoretical foundation for deeply researching electric automobiles participating in frequency modulation.

The invention provides a spacecraft transfer test tool management method. The spacecraft transfer test tool management method comprises the steps that 1, a transfer test tool is inquired; 2, selectinga transfer test tool needing to be borrowed and borrowing duration, opening the access grid, and obtaining the transfer test tool; 3, after use, scanning the two-dimensional code confirmation information on the transfer test tool; and step 4, after information confirmation, opening the access grids, and putting a transfer test tool to finish returning. Shared storage is achieved, the utilizationrate is high, and large-scale repeated production is not needed; self-service borrowing and returning are achieved, and the management cost is low; borrowing and returning are conducted at any time, and using efficiency is high; statistics of use times and use time and timely inspection are realized, and safety and reliability of tools are guaranteed.

The invention discloses a unit control loss reduction method of a wind power access grid. A control unit is controlled in a coordinated way with loss reduction and energy conservation acting as the objective so that the network loss can be reduced, corresponding unit division is performed on all the wind power plants, conventional power supplies and high energy load based on the grid-connected position and capacity data of the existing conventional power supplies, the high energy load and the wind power plants, and power coordination of the intra-unit and inter-unit conventional power supplies and high energy load can be reasonably performed according to the wind power output situation and thus the network loss is enabled to be minimized as much as possible.

The invention discloses a distributed parallel grid generation software framework. The framework comprises: a client module which has a visual data management function and is provided with a graphic human-computer interaction interface, a message intermediate module which is used for executing asynchronous message transceiving operation and visualized data serialization operation, and a server module which runs on a computing cluster in a parallel mode, supports distributed grid data management and executes a grid parallel generation function. According to the invention, the huge requirement of large-scale CFD application for the grid is met, and a user can access the grid generation service anytime and anywhere. The framework has a friendly graphical user interface (GUI) with which a usercan interact and drive the provided functions.

The invention discloses a wind power generator set electric network voltage oscillation identification method. The method mainly aims at a single-machine accessed grid connection point of a fan, and whether the electric network oscillation occurs or not is judged by analyzing second-stage and millisecond-stage transient data generated by a wind power generator set by a feature analysis method. The invention also provides a wind power generator set electric network voltage oscillation identification system adopting the method. When the method and the system provided by the invention are used for carrying out grid connection voltage oscillation judgment identification, the required data requirement is low, the goal can be achieved through the existing data collecting means of the fan, and the additional arrangement of high-calculation-frequency test and control devices is not needed. In addition, the goal of discovering the voltage oscillation in an early oscillation stage can be achieved, and the early detection and fast anti-accident measure adoption can be favorably realized.

The invention discloses a reactive voltage control circuit simulation method and system for distributed grid-connected converter. The method includes: creating a corresponding circuit simulation modelin the power simulation software according to parameters of the plurality of grid-connected converters to be controlled; creating a reactive voltage control model, and connecting the reactive voltagecontrol model as a control logic circuit to a corresponding circuit simulation model; performing a voltage sag simulation experiment on the plurality of circuit simulation models to verify whether the circuit simulation model during the voltage sag can output excess reactive power support circuit voltage; performing a follow-up simulation experiment of reactive power on the plurality of circuit simulation models to verify the following performance of the circuit simulation model for rated power. The method and system establish a circuit simulation model and a reactive voltage circuit controlmodel, and obtain a control model that can be switched according to the access grid type control method through simulation experiments to meet different grid requirements of different usage scenarios.

The invention, which belongs to the technical field of the power supply equipment, provides a loop difference testing apparatus of a transformer substation direct-current power supply system. In order to solve problems existing in the prior art, the testing apparatus is characterized in that a direct-current output interface is connected with a direct-current fuse load terminal at a final stage and sends a current to a grid-connected inverter based on sampling of a current sampling circuit and a voltage sampling circuit. The grid-connected inverter converts the direct current into a grid-connected alternating current and transmits the current to an access grid unit; and the access grid unit transmits an alternating-current signal to the power grid back. The grid-connected inverter uses a computer to control and adjust different current outputs, thereby generating currents from 0 to 500A to enable a protection element of the direct-current power loop to make action. The current sampling circuit and the voltage sampling circuit can carry out sampling on a current value and a voltage value during the motion of a circuit breaker; signals are transmitted to an A / D converter simultaneously; the A / D converter converts analog signals into digital signals that are transmitted to the computer; the computer calculates the digital signals and determines the motion characteristic of the direct-current loop according to different currents and motion time; and then the computer inputs the signals into a report output unit by a report conversion tool.

The invention provides a method for structuring collaborative awareness model for collaborative grid application in visiting grid, which comprises the following procedures: 1) firstly concluding the elements and the relationship among elements related to the collaborative grid application in the visiting grid, structuring the object method graph for the collaborative grid application, and simplifying object method graph through operation relationship; 2) then providing the edge weight value of the object method graph according to the behavior correlation among collaborative members during the implementation process of the collaborative grid application, and calculating the behavior correlation degree among collaborative members and quantifying the behavior awareness strength of one collaborative member to other members; 3) finally deciding the awareness space of collaborative members according to the comparison result between awareness strength and awareness threshold, selecting collaborative information which collaborative members need based on correspondent awareness space, and filtering collaborative information which collaborative members do not need. The invention is capable of judging the dynamic relations among collaborative members and collaborative mission in grid environment, deciding the awareness strength and the awareness space of collaborative members during collaborative process, selecting the collaborative information which is needed the collaborative members, and filtering collaborative information which collaborative members do not need, ensuring the collaborative members to finish collaborative mission sufficiently and more carefully.

The invention relates to a novel power equipment access power grid reliability assessment and optimization method and system. The method comprises the following steps: calculating the reliability of novel power equipment after access to a power grid according to a pre-established novel power equipment reliability model and the access position of the novel power equipment; comparing the reliabilitylevel change before and after the novel power equipment is connected to the power grid, and determining a power grid system reliability optimization target and a novel power equipment reliability optimization target; determining a weak module in the novel power equipment by performing sensitivity analysis on the reliability of the novel power equipment; the sensitivity of weak module constituentparts is analyzed through a perturbation method, and economic analysis is combined, so that the economic costs of different sub-modules are compared when the same reliability level is improved, and the constituent parts and the improvement amount which should be improved for improving the reliability of the sub-modules are determined; and the improved novel power equipment is connected to a powergrid, system reliability evaluation is carried out again, and the equipment optimization and improvement effect is judged. The reliability level can be improved.

The invention provides a method for structuring collaborative awareness model for collaborative grid application in visiting grid, which comprises the following procedures: 1) firstly concluding the elements and the relationship among elements related to the collaborative grid application in the visiting grid, structuring the object method graph for the collaborative grid application, and simplifying object method graph through operation relationship; 2) then providing the edge weight value of the object method graph according to the behavior correlation among collaborative members during theimplementation process of the collaborative grid application, and calculating the behavior correlation degree among collaborative members and quantifying the behavior awareness strength of one collaborative member to other members; 3) finally deciding the awareness space of collaborative members according to the comparison result between awareness strength and awareness threshold, selecting collaborative information which collaborative members need based on correspondent awareness space, and filtering collaborative information which collaborative members do not need. The invention is capable of judging the dynamic relations among collaborative members and collaborative mission in grid environment, deciding the awareness strength and the awareness space of collaborative members during collaborative process, selecting the collaborative information which is needed the collaborative members, and filtering collaborative information which collaborative members do not need, ensuring the collaborative members to finish collaborative mission sufficiently and more carefully.

The invention discloses a method for preventing overvoltage of the neutral point of a main transformer in high-permeability photovoltaic access. The method is based on a traditional photovoltaic grid-connected decoupling double closed-loop control method, and can be divided into 3 states: in a state 1, the voltage of the neutral point of the main transformer is over the rated voltage but the overvoltage is within an allowable range, and a traditional grid-connected control method is adopted; in a state 2, the voltage of the neutral point of the main transformer rises to the phase voltage and does not reach the breakdown condition, the voltage and current of the grid connection point and the voltage of the neutral point of the main transformer are collected, the photovoltaic grid connectionphase angle is adjusted to limit the voltage of the neutral point of the main transformer within a safety range, and active power output of photovoltaic grid connection is ensured; and in a state 3,the voltage of the neutral point of the main transformer is broken down, the photovoltaic power supply operates in an off-grid mode, the voltage of the neutral point of the main transformer decreasessubstantially, and the photovoltaic system is connected with an energy storage device through a DC converter. By changing the photovoltaic grid-connected control strategy and adding a supporting energy storage device, the problem that transformer damage is caused due to too high voltage of the neutral point of the main transformer during operation of a high-permeability photovoltaic access grid infault can be solved.

The invention discloses a unit control loss reduction method of a wind power access grid. A control unit is controlled in a coordinated way with loss reduction and energy conservation acting as the objective so that the network loss can be reduced, corresponding unit division is performed on all the wind power plants, conventional power supplies and high energy load based on the grid-connected position and capacity data of the existing conventional power supplies, the high energy load and the wind power plants, and power coordination of the intra-unit and inter-unit conventional power supplies and high energy load can be reasonably performed according to the wind power output situation and thus the network loss is enabled to be minimized as much as possible.

An apparatus, system, and method are disclosed for quick access of stored removable storage media. The apparatus includes an automated data storage library, a communications processor, and a media interface module. The automated data storage library has a plurality of storage cells, each storage cell having a media interface module for communicating with removable storage media. The communication processor module communicates with the media interface module of each storage cell. A grid bus couples the media interface module and the communication processor module. The system includes a storage area network coupling multiple hosts to at least one automated data storage library. The method includes communicating with the removable storage media, communicating with the media interface modules, and coupling the media interface modules to the communication processor module.

The invention discloses a digital museum grid and the construction method thereof; the digital museum grid includes a grid portal device, a job dispatching and an execution management device, an information center, a resource retrieval service device, an ontology service device, a heterogeneous database accessing and integration device, a grid monitoring device and other devices. The method includes: establishing an ontology device to establish the instantiation relation between digital museum resource and the global ontology by semantic labeling, establishing the heterogeneous database accessing and integration device to provide a global uniform view and a uniform access interface of heterogeneous database resource for the users of grid system recourse, establishing the grid resource monitoring device to collect original state data of monitoring nodes and classify the data into uniform standard information format for visualization, establishing the grid portal device to provide grid resource accessing and service, application of execution and monitoring grid, and a service environment supporting the cooperative work of users. In the process of application, the invention utilizes grid middleware and receives job request through a grid job dispatch device to fulfill job dispatching and execution information management and to generate and manage the resource retrieval service device so as to index a grid service device through an information service device. The invention can realize the mutual communication and organic sharing of the massive digital museum resources in multidisciplinary field and eliminate the isolated island phenomena of sample information.

The present invention provides a control method for energy storage to suppress rapid power changes of a photovoltaic power station. The method includes the following steps: (1) receiving the active power of the power grid, the dispatch data of the output of the photovoltaic power station, the prediction data of the prediction model, and the data of the energy storage system Constrain the data; (2) Establish a photovoltaic prediction model and predict the output of photovoltaics; (3) Solve the objective function using the method of chance constraints to obtain the output value of the energy storage system; (4) Control the output power of the energy storage system, Suppress fluctuations generated by photovoltaic arrays. The invention realizes a good effect of suppressing the power fluctuation of the photovoltaic power station, reduces the system cost, and improves the stability of the photovoltaic power station connected to the power grid.

The embodiment of the invention discloses an article storing and taking device. In a specific implementation mode, the device comprises a control module, an access cabinet and a storage device, wherein the access cabinet comprises a plurality of access grids, each access grid comprises a first grid door arranged on the first side of the access cabinet and a second grid door arranged on the second side of the access cabinet, and the first side and the second side are opposite sides of the access cabinet; the storage device comprises a rotating and placing mechanism and a plurality of bearing tables; the control module is used for responding to a storage instruction or a take-out instruction to open the first lattice door, responding to the storage instruction to open the second lattice door of the corresponding access lattice and controlling the transfer mechanism to take out the articles in the corresponding access lattice and transfer the articles on a vacant bearing table, and in response to the putting-back instruction to open a second lattice door of a vacant access lattice, controlling the rotating and placing mechanism to take out the articles on the corresponding bearing table and transfer the articles into the vacant access lattice. According to the embodiment, access resources of the access cabinet can be saved, and the operation efficiency of the access cabinet is improved.

The embodiment of the invention provides a baffle movement control method and device, a storage medium and intelligent logistics terminal equipment. The method comprises the steps of obtaining a baffle movement instruction, wherein the baffle movement instruction is used for indicating a baffle to move from the Nth access grid to the Mth access grid; then determining an expected rotation directionaccording to the baffle movement instruction, wherein the expected rotation direction is the rotation direction of a controlled motor enabling the baffle to move from the Nth access grid to the Mth access grid; then controlling the control motor to rotate in the expected rotation direction so as to drive the baffle to move towards the Mth access grid; and furthermore, acquiring sensor informationreturned by photoelectric sensors in the process of moving the baffle to the Mth access grid, and controlling the baffle to stop at the Mth access grid according to the sensor information. Accordingto the method provided by the invention, multi-point reliable baffle movement control can be realized, and the number of required photoelectric sensors is small, so that the cost of the intelligent logistics terminal equipment is greatly reduced.

The mobile power generation system adopts the standby self-switching technology to connect to the power grid operation method, and uses the load transfer system and power generation system with dual-power backup automatic switching control device for operation; the load transfer system includes the first backup automatic switching control device (1DL) , The second standby automatic switching control device (2DL) and the external connection cable (L) with the first load switch (K1) connected between the two power sources, and the second one installed on the front cable of the first standby automatic switching control device The load switch (K2), the mobile power generation system (C) and the third load switch (K3) connected to the rear cable of the second standby automatic switching control device; when the 10kV line (1) needs maintenance, disconnect the line The back-end load at point (A) is powered by the mobile power generation system; when the line needs to be repaired, the back-end load at the disconnection point of the line is powered by the mobile power generation system. The invention can realize seamless switching with mains power, realize fast response and handling of emergencies, realize comprehensive non-stop maintenance of distribution network, and improve power supply reliability.

The invention relates to a method for identifying and testing model parameters of a photovoltaic power generation system. The test method is to access a power grid disturbance simulator before the photovoltaic power generation system goes online, and complete the operation data of the photovoltaic power generation system under fault conditions without affecting the operation of the power grid. When testing the wiring, first stop the output of the grid-connected unit inverter of the photovoltaic power generation system, connect the test system in series to the grid-connected line of the photovoltaic power generation system, and connect the photovoltaic inverter output AC boost in series to the incoming line of the test system The circuit breaker is connected to the grid disturbance simulator after being stepped down by the step-down transformer. The grid disturbance simulator simulates single-phase, two-phase, three-phase different types of grid faults and grid system frequency faults, and then restores the voltage to On-grid voltage level, connected to the grid after passing through the on-grid circuit breaker. This method can provide accurate basis for identifying model parameters of photovoltaic power generation system under normal and fault conditions of the power grid.

Optimizations are provided to control access to virtual content included within a three-dimensional (3D) mesh. Specifically, after the 3D mesh is accessed, then objects represented by the 3D mesh are segmented so that they are distinguishable from one another. Once segmented, then a permissions is assigned to each object or even to groups of objects. For instance, all of the objects that are associated with a particular sub-space (e.g., a bedroom or a living room) may be assigned the same permissions. By assigning permissions to objects, it is possible to control which requesting entities will have access to the objects as well as how much access each of those requesting entities is afforded.