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290results about How to "Improve receptivity" patented technology
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Lyocell nonwoven fabric
InactiveUS7067444B2Powerful solventLow tendency to fibrillatePulp properties modificationMonocomponent cellulose artificial filamentMelt blowingNonwoven fabric
A lyocell nonwoven fabric having fibers characterized by pebbled surfaces and variable cross sections and diameters along the fibers and from fiber to fiber, is disclosed. The lyocell nonwoven fabric is produced by centrifugal spinning, melt blowing or spunbonding. The lyocell nonwoven fabric has fibers that can be made in the microdenier range with average weights as low as one denier or less. The lyocell nonwoven fabric has fibers with low gloss, a reduced tendency to fibrillate and have enhanced dye receptivity.
Owner:INT PAPER CO
Wind power station energy storage capacity control method based on particle swarm optimization
InactiveCN102664423AEffective connection scheduling operation modeImprove receptivityEnergy storageBiological modelsParticle swarm algorithmEnergy analysis
The invention relates to a wind power station energy storage capacity control method based on particle swarm optimization. The wind power station energy storage capacity control method includes the steps of taking the interval reference value of the wind power station output power which is adapted to the dispatching cycle of a power grid as a foundation, taking the influence of the wind-abandoning energy of a wind power station and the lost energy of an energy storage system into consideration, taking the lowest costs of the energy storage investment and a wind and power operation system as target functions, establishing a policy model for energy storage capacity optimizing based on a storage battery energy storage system, and then applying the improved particle swarm optimization to solve the functions. By the aid of the wind power station energy storage capacity control method based on the particle swarm optimization, the wind power which is output under effect of the energy storage system can be output smoothly at intervals, so that effective connection between the energy storage system and the existing dispatching operation manner can be realized, and the best economic benefit can be achieved simultaneously.
Owner:SHANDONG UNIV
Control method of grid friendly type distributed power source based on hybrid energy storage
ActiveCN102983589AImprove receptivityAchieve energy saving and environmental protection benefitsSingle network parallel feeding arrangementsEnergy storageEngineeringAlternating current
The invention provides a control method of a grid friendly type distributed power source based on hybrid energy storage. The method comprises the steps of optimally designing a topology structure of the distributed power source, controlling a direct current power supply system in a coordinating mode through a direct current (DC) / DC converter controlling a model normalization model, and self-adaptively controlling a grid of an alternating current (AC) side DC / AC converter. The distributed power source not only can be connected in a large grid to operate so as to reduce the influence of intermittent renewable energy power generation grid connection on the grid and provide support of voltage and frequency for the grid, but also can be connected into a micro-grid to operate as a network unit of the off-network type micro-grid to maintain stability of voltage and frequency of the off-network type micro-grid. When an outer grid breaks down, the distributed power source can realize switch between a grid mode and an island mode so as to improve power supply reliability of important loads in the system. The distributed power source improves technical performance and economic performance of the whole system through matching utilization of an energy type system and a power type energy storage system.
Owner:CHINA ELECTRIC POWER RES INST +2
Transferable index tabs
A computer printer compatible index tabs assembly that includes a carrier sheet recognizable by any of a wide variety of computer compatible printing devices. The carrier sheet includes a plurality of self-adhesively secured tabs each formed from a resilient, durable thin film. The self-adhesive is formulated to either permanently or releasably adhere to a peripheral edge of a sheet of material which is to be tagged, labeled or indexed. After printing, the index tab is transferred from the carrier sheet and positioned with the self-adhesive securing the index tab to the sheet of material and with the indicia projecting outwardly from the edge for convenient display.
Owner:IDG
Layered optimization method of regional distribution network comprising micro-grid
ActiveCN103544655AMaximize utilizationImprove receptivityForecastingSingle network parallel feeding arrangementsPower-system automationPower grid
The invention relates to an optimization method in the field of power system automation, in particular to a layered optimization method of a regional distribution network comprising a micro-grid. The method includes the following steps: (1) building a micro-grid and distribution network combined dispatching model; (2) building an efficiency-maximizing secondary dispatching model of the micro-grid; (3) optimizing the two dispatching models. According to the method, the micro-grid is taken as a controllable unit capable of dispatching independently; through coordinated dispatching of a controllable distributed power supply on the distribution network side, the micro-grid and the distribution network and bi-layer dispatching control of economic dispatch of distributed energy resources inside the micro-grid, the distributed energy resources are used in a maximized manner internally, the regional distribution network power supply and loads are dispatched optimally externally, and acceptance capability of the distraction network to the distributed power supply can be effectively improved.
Owner:STATE GRID CORP OF CHINA +2
New-energy-consumption-based source-grid-load coordination control method and system
ActiveCN107528385AImprove absorption capacitySuppress power fluctuationsSingle network parallel feeding arrangementsEnergy storageNew energyNetwork communication
The invention discloses a new-energy-consumption-based source-grid-load coordination control method and system. On the basis of continuous increasing of a new energy scale and occurrence of a novel controllable load, overall cooperative dispatching is carried out on dispersed controllable loads in a region by using a multi-element coordination control technique, thereby realizing characteristic complementation between the several kinds of energy and controllable loads and thus realizing source-grid-load interaction. According to the invention, the new-energy-consumption-based source-grid-load coordination control system is divided into a whole network optimization scheduling layer, a regional monitoring and coordination layer, a local monitoring and control layer, and a primary equipment layer. With utilization of the network communication, data processing and coordinated control technologies, the system provides a technical base for a novel integrated operation mode of regional multi-energy power generation and production, load electricity usage and grid operation by taking improvement of the consumption capability of the new energy of the grid as an objective.
Owner:STATE GRID LIAONING ELECTRIC POWER RES INST +2
Computer printer compatible index tabs
InactiveUS6132831AEasy to useOvercome disadvantagesStampsFlexible coversComputer printingEngineering
Owner:IDG
Overrunning virtual synchronous generator (VSG+) method with rotary inertia and damping self-optimization-trending
ActiveCN105186554ARealize "zero" impactImprove receptivitySingle network parallel feeding arrangementsPhotovoltaic energy generationVirtual synchronous generatorClosed loop
The invention discloses an overrunning virtual synchronous generator (VSG+) method with rotary inertia and damping self-optimization-trending. The method comprises the following steps: step one, a mechanical equation and an electromagnetic equation of a virtual synchronous generator (VSG) are established; step two, the rotary inertia J and damping D in a VSG model are increased as |delta f| is increased, wherein delta f is an absolute value of a difference between a power network rated frequency and the actual frequency of the VSG; and step three, according to self-adjustment of the rotary inertia J and the damping D, closed-loop control is performed on the |delta f|, and finally, grid connection of a distributed photovoltaic power generation system is realized. According to the VSG+ method with the rotary inertia and damping self-optimization-trending, provided by the invention, the rotary inertia J and the damping D in the VSG are adaptively adjusted as the |delta f| changes, the rotary inertia J and the damping D after adjustment then perform feedback regulation on the |delta f|, and finally, zero impact during grid connection of photovoltaic inverters is realized, such that the acceptance capability of a power network for the distributed photovoltaic power generation system is improved.
Owner:XUJI GRP +2
Low voltage microgrid group independent coordination control system
ActiveCN104836334AIncrease profitImprove receptivitySingle network parallel feeding arrangementsWind energy generationMicrogridControl layer
Provided is a low voltage microgrid group independent coordination control system, employing a layered control structure, i.e., an equipment layer, a grid control layer and a group control layer. A microgrid group controller receives a scheduling instruction of a group level energy management system; based on the safety and reliability of a control target of the microgrid group and sub microgrids, the microgrid group controller controls exchanging power between a microgrid group and a power distribution network and each sub microgrid, grid disconnection or grid connection of the microgrid group, and grid connection or grid disconnection of the sub microgrids, realizes interface control between the sub microgrids and the microgrid group, and meanwhile issues a control instruction to a grid level controller. The grid level controller works out optimal control strategies of distributed power supply, energy storage and load, and realizes stable operation and smooth transition among states of the sub microgrids in a grid connection state, and information communication with the microgrid group controller. A supply or energy storage local controller completes primary regulation of frequency and voltage of distributed power supply and energy storage; a load controller completes load grading control.
Owner:CHINA AGRI UNIV
Method and system for dynamically balancing cell load in wireless network
InactiveCN101772081AEasy accessReduce distractionsNetwork traffic/resource managementSignal qualityFailure causes
The invention discloses a method and a system for dynamically balancing cell load in wireless network, which comprises the steps: regarding a load as one of bases for a resident judgment, at least dividing the cell load into two different states or value ranges according to the load; regarding the loads of target resident cells as one of the bases for judgment when a terminal conducts the resident judgment, such as judging that the loads of two target resident cell are respectively in the highest and the lowest states or value ranges of the loads, and when the quality of signals is identical, giving resident priority to the target resident cell with lighter load. The method and the system achieve the purposes of improving terminal access and switching failures caused by inter-cell unbalanced loads and simultaneously reducing the interference applied to the terminal in the cell and enhancing access successful rate.
Owner:ZTE CORP
Method and system for communicating financial news
ActiveUS9135662B2Easy to findImprove receptivitySpecial service provision for substationFinanceGraphicsDatabase
Owner:ALGO INNOVATIONS
Cell transfection apparatus and method
InactiveUS6071276ATransfection of cells in vivo relatively quicklyReduce amountCatheterSurgical instruments for heatingIn vivoRadio frequency
An apparatus and associated method provides for the application of a cell treatment agent, such as genetic material or drugs to be inserted within the cells of a patient in vivo. The apparatus may be a catheter arrangement with various embodiments for applying heat to a patient's cells in vivo in order to improve transfection efficiency or application efficiency. Laser beams may be applied directly to the cells. Alternately, the cells may be heated by electrical heating, chemical heating, radio frequency heating, microwave heating, infrared heating, ultrasound heating, or indirect laser heating. Further, the treatment agent may be heated prior to its application to the patient such that the treatment agent heats the cells of the patient.
Owner:ABELA GEORGE S
Content distribution network system and its content and service scheduling method
InactiveCN101035264AImprove throughputExtended smoothingSpecial service provision for substationTwo-way working systemsContent distributionRequest–response
The invention is a service scheduling method for a content distributing network, applied to a content distributing network comprising terminals and service nodes, where the service node comprises guiding unit and media unit; and the method comprises the steps of: A. a terminal initiates a searching request for it address and media content information to a guiding unit in its local area; B. if this local area does not have the media contents, adopting P2P protocol to transmit the searching request above to other service nodes; C. the guiding unit of a service node having the media contents sends searching request response to the terminal; D. the terminal sends service application information to the guiding unit of the service node having the media contents; E. the guiding unit of the service node having the media contents sends reorienting information including media unit address information in the service node able to provide the terminal with the corresponding media service; F. the terminal sends service request to the media unit above.
Owner:ZTE CORP
New energy available capability assessment method considering transient security constraints
ActiveCN104882905AImprove receptivityReduce adjustmentSingle network parallel feeding arrangementsTransient stateNew energy
The invention discloses a new energy available capability assessment method considering transient security constraints, belongs to the field of new energy available capability assessment. According to the invention, on the basis of the EEAC theory, transient security constraints are added into an existing new energy available capability assessment method; and on the basis of the existing assessment method with peak and frequency modulation constraints as reference, full consideration is given to the transient security stability constraints of an outgoing channel, the transient power angle stability margin, transient voltage security margin and transient frequency drop acceptability margin are quantified, and the unit adjustment sequence is determined according to the magnitude of sensitivity of the output adjustment of a new energy unit under a buckling mode. The invention is capable of achieving optimal output adjustment of the new energy unit under a transient buckling forbidden faulty set, and meanwhile achieving the new energy grid-connected maximum availability while satisfying safe and stable operation of a power grid.
Owner:NARI TECH CO LTD +1
Multiple time scale control method of exchange power of microgrid and power distribution network
ActiveCN102684199AReduce adverse effectsRealize friendly accessEnergy industrySingle network parallel feeding arrangementsMicrogridScheduling instructions
The invention discloses a multiple time scale control method of exchange power of a micro grid and a power distribution network. The multiple time scale control method comprises the following steps of formulating a micro grid exchange power control curve at present and issuing to a micro grid energy management system according to operating data of the micro grid and daily scheduling plans of the power distribution network; and enabling the micro grid energy management system to judge whether output power of each power supply in the micro grid is scheduled or not to enable real-time exchange power to meet scheduling requirements in a setting adjustment period. The multiple time scale control method controls the exchange power of the micro grid and the power distribution network in multiple time scales, effectively reduces adverse effects on the power distribution network caused by micro grid connection, improves acceptance capability of the power distribution network on renewable energy sources, promotes development of using of the renewable energy sources, improves issuing mode of scheduling instructions, meets actual scheduling habits of power distribution automation, introduces super-short-term power generation prediction and super-short-term load prediction during true time control, and can effectively avoid problems such as adjusted oscillation and frequent adjustment.
Owner:NARI TECH CO LTD +1
Wind power generation-combined ordered charge and discharge coordinated control system of pure electric vehicle
ActiveCN102324752AImprove receptivityReduce adverse effectsCharging stationsEnergy storageElectrical batteryElectric power system
The invention relates to the technical field of wind power generation, in particular to a wind power generation-combined ordered charge and discharge coordinated control system of a pure electric vehicle. The system is characterized in that: information of each charging station is transmitted to a power grid dispatching center, the power grid dispatching center judges the state of the current power system to generate a corresponding charging control mode, and then, the information is transmitted to a charging station concentrated coordination monitoring system to carry out information interaction; the power gird dispatching center transmits a pitch peak instruction to each dynamic battery, namely a dynamic battery group, through a communication network of the charging station concentrated coordination monitoring system; and the dynamic battery group receives the pitch peak instruction to realize pitch peak and feeds back residual electric quantity to a power grid at the same time. According to the system disclosed by the invention, an advantage complementation relation among wind power generation, charge and discharge of the electric vehicle and power gird stabilization is realized and coordinated; the acceptability of wind and electricity is improved; the harmonic pollution caused by disordered charge of the pure electric vehicles and the adverse influence on the power grid are reduced to the greatest extent, and the utilization efficiency of wind and electricity and the stabilization level of the power grid are improved.
Owner:STATE GRID LIAONING ELECTRIC POWER RES INST +1
Water-based ink-receptive coating
InactiveUS20050019508A1Improve receptivityInhibition of agglomerationOther chemical processesLayered productsSulfonateWater based
A film receptive to a variety of different classes or kinds of inks, such as water based inks, solvent based inks and UV cured inks is disclosed. The film includes a water dispersible polymer having a polar component or a water dispersible polymer and a polar polymer, such as a polymer having an ionic component to increase the receptivity of the coating to water-based inks. A surfactant, such as an alkyaryl sulfonate, to prevent agglomeration of the polymer before it is formed into film may also be included. The preferred water-dispersible polymer is a core / shell latex polymer. The preferred polar polymer is chemically compatible with latex polymers and is sufficiently ionic or polar to improve the printability onto the film of water-based inks. The surfactant, which may be in the latex as manufactured or may be added separately, and preferably has a molecular structure that includes at least one hydrophobic moiety and at least one anionic group such as sulfates, sulfonates and the like.
Owner:3M INNOVATIVE PROPERTIES CO
Method of air-conditioning load for participating in secondary frequency modulation of system based on energy storage model building
The invention discloses a method of air-conditioning load for participating in secondary frequency modulation of a system based on energy storage model building. The method comprises the following steps of: building an energy storage model of air-conditioning load; forming two stacks of on-off-stack and off-on-stack of an air-conditioning unit for real-time control according to an SOC (System On Chip) predicted value of each air-conditioner unit; calculating adjustable capacity of the air-conditioning unit administered by a load aggregator, and reporting to a dispatching center; receiving a power adjustment instruction issued from the dispatching center by the load aggregator; and decomposing the power adjustment instruction into start-stop control of each administered air-conditioner unit by the load aggregator according to a certain start-stop strategy of the air-conditioning unit. Based on a commercial model of the load aggregator, a process and a method for the secondary frequency modulation of a large-scale air-conditioning unit participation system are built, the energy storage model is built for the air-conditioning unit, so that the air-conditioning unit can participate in operation and dispatching of a power system like a normal energy storage element, and a basic theory in which the air-conditioning unit serves as a demand response resource to participate in the secondary frequency modulation of the system is formed.
Owner:SOUTHEAST UNIV
Methods and systems for efficient security screening
InactiveUS20090284343A1Improve customer experienceImproving atmospheric conditionElectric signal transmission systemsMultiple keys/algorithms usageComputer security
The present invention relates to systems and methods relating to security checkpoints. In some embodiments the present invention includes a security checkpoint system that is optimized in one or more of design and décor, audio characteristics, and efficiency in passing customers through the security checkpoint and generating revenue with adverting and sponsorships.
Owner:SECURITYPOINT HLDG
Composite graphite particles and lithium secondary battery using the same
InactiveCN102341346AImprove receptivityImprove featuresGraphiteCell electrodesRaman scattering spectraElectrical battery
Owner:SHOWA DENKO KK
Chance constraint planning based optimal configuration method of distributed energy source
ActiveCN105552965AImprove receptivityGuaranteed economySingle network parallel feeding arrangementsSystem configurationComputer science
The invention provides a chance constraint planning based optimal configuration method of a distributed energy source. The method comprises the following steps of building a comprehensive optimal configuration model of the distributed energy source; determining a chance constraint condition of the comprehensive optimal configuration model of the disturbed energy source; determining an energy storage system configuration principle of the comprehensive optimal configuration module of the distributed energy source; and figuring out the comprehensive optimal configuration model of the distributed energy source. With the method proposed by the invention, the acceptable capability of a power distribution net on the distrusted energy source is effectively improved, the energy efficiency target and the low carbon target of a planning scheme can be met, economic requirement also can be met, the problems of site selection and constant volume of the distributed energy sources in places with different resource levels and economic development degrees can be solved, the application of the distributed energy source at a large scale is ensured, and the environmental pollution and energy crisis caused by fossil energy can be effectively relieved.
Owner:CHINA ELECTRIC POWER RES INST +1
Random access response transmission method and device
ActiveCN102457979AImprove transmission reliabilityImprove transmission stabilityWireless communicationRandom-access channelEngineering
The invention discloses a random access response transmission method and device. When a preamble sequence of a random access channel is selected by a terminal to transmit MSG 1, the terminal bears the transmission power and / or transmission frequency information of the MSG 1 on the selected preamble sequence; a system receives the MSG1 and obtains the pass loss between the terminal and the system side according to the transmission power and / or transmission frequency information of the MSG 1, borne on the preamble sequence, and adjusts the transmission scheme of MSG2 according to the value of the path loss. By adoption of the random access response transmission method and device, the transmission reliability and stability of the MSG 2 can be improved, furthermore, the random access process is optimized and the network admission capability is enhanced.
Owner:ZTE CORP
Food therapy and health care compound fruit and vegetable rice flour composition, preparation method and applications thereof
ActiveCN104256411AImprove stubborn diseasesImprove stubborn diseases such as mouth ulcersFood ingredient functionsFood preparationFlavorAdditive ingredient
The present invention discloses a compound fruit and vegetable rice flour composition with food therapy and health care efficacy, a preparation method and applications thereof. The compound fruit and vegetable rice flour composition comprises the following raw materials by weight: 85 to 99 parts of rice, 1 to 10 parts cabbage powder, and 0.1 to 5 parts of other vegetable powder and / or fruit powder. The compound fruit and vegetable rice flour composition in the present invention has homology of medicine and food, is natural and safe; is suitable for general people, can be compounded according to different people so as to process and produce compound fruit and vegetable rice flour with different food therapy and health care efficacy and suitable for different people; has balanced and comprehensive nutrition, reasonable nutrition structure, has good conditioning and preventing effects on mouth ulcer and effects of invigorating stomach and nourishing stomach, loosening bowel to relieve constipation, and enhancing immunity with validations; has pure and delicate taste, can well make up the disadvantages that the nutrients and the color of traditional rice flour are single, and meets the requirement of consumers for taste, flavor and nutrition.
Owner:高燕
Sand Control Screen Assembly Having a Surface-Modified Filter Medium and Method for Making Same
InactiveUS20110265990A1Improved sand controlEasy to controlFluid removalDrinking water installationParticulatesFilter media
A sand control screen assembly (100) positionable within a wellbore (26) for filtering particulate matter out of production fluids. The sand control screen assembly (100) includes a perforated base pipe (102) that allows fluid flow therethrough and a filter medium (124) disposed exteriorly about the base pipe (102). A surface-modified agent is disposed on at least a portion of the filter medium (124). The surface-modified agent is operable to enhance the surface filter characteristics of the filter medium (124), thereby reducing particulate infiltration into the filter medium (124).
Owner:HALLIBURTON ENERGY SERVICES INC
Multilayer imageable elements having good solvent resistance
InactiveUS20070065737A1Improve the immunityExcellent image reproductionFilm packagingLithographySolventPlanographic printing
Multilayer thermally imageable elements useful as lithographic printing plate precursors are disclosed. The imageable elements comprise a substrate, an underlayer over the substrate, and a top layer over the underlayer. The top layer contains a polymer containing anhydride groups. This polymer is present in the top layer in an amount of at least 60% based on the dry weight of the layer. The imageable elements have excellent resistance to press room chemicals.
Owner:EASTMAN KODAK CO
Requirement responding scheduling method for wind power uncertainty
ActiveCN103729698AFully tap the scheduling potentialConvenience constraintsForecastingInformation technology support systemElectricity priceWide area
The invention relates to a requirement responding scheduling method for wind power uncertainty. The method comprises a scheduling trading center predicts a benchmark load curve and a wind power generation curve and releases scheduling information to load agents; the load agents perform learning and decision making according to scheduling requirement information, system operation information and historical trading information and formulate bidding strategies and reports to strategies to the scheduling trading center; the scheduling trading center performs optimal scheduling on generation and consumption power resources with the lowest scheduling cost as the target after obtaining load agent bidding information and generator set calling cost information and sends scheduling instructions and final compensation price to the load agent and the generator set; the load agents adjust consumption power by means of electricity price adjusting and stimulation with the lowest scheduling cost as the target after obtaining final scheduling instructions. According to the method, an effective way is provided for wide-area distributed medium and small volume load resources to participate in system scheduling, the wind power volume load admitting capacity is improved, and the scheduling cost is reduced.
Owner:STATE GRID CORP OF CHINA +2
Methods and apparatus for a wireless terminal with third party advertising: authentication methods
InactiveUS20060282385A1Improve receptivityIncrease exposureComputer security arrangementsMarketingComputer hardwareThird party
A sponsor compensates an entity, such as a wireless service provider or an intermediary, in exchange for allowing the sponsor to advertise on a card, such as a phone card. The card, which is available for purchase by consumers, is used to purchase a wireless service. In some embodiments, the compensation paid by the sponsor to the entity subsidizes the cost of the wireless service for the consumer. In use, the card is coupled to an advertising-enabled wireless terminal. The advertising that appears on the card is visible to the user through the back cover of the wireless terminal. The sponsor card must remain coupled to wireless terminal for the consumer to use the service that was purchased via the sponsor card.
Owner:MOCHIS INVESTMENT
Intelligent anti-islanding device and automatic islanding detecting and destroying method
InactiveCN104795838AImprove receptivityEliminate security threatsSingle network parallel feeding arrangementsFault locationIslandingManagement system
The invention discloses an intelligent anti-islanding device and an automatic islanding detecting and destroying method. The intelligent anti-islanding device is characterized by comprising an islanding detecting module, an islanding recognizing module, an islanding destroying module, an islanding alarm module and an islanding transmitting module, wherein the islanding detecting module is connected with the islanding recognizing module, the islanding recognizing module is connected with the islanding destroying module and the islanding alarm module, and the islanding transmitting module is connected with the islanding detecting module, the islanding recognizing module, the islanding destroying module and the islanding alarm module. The intelligent anti-islanding device has the advantages that by detecting and recognizing unintentional islanding automatically by the islanding detecting module, when islanding occurs in a power distribution line of a distributed photovoltaic power generation system, the intelligent anti-islanding device is capable of automatically detecting and recognizing unintentional islanding operation according to acquired line information, alarming automatically to inform a management system timely and controlling the anti-islanding device to switch automatically through a DSP (digital signal processor) controller to switch off the unintentional islanding so as to prevent potential safety hazard caused by manual operation.
Owner:STATE GRID CORP OF CHINA +4
Generator set active power real-time dispatching method considering wind power prediction error
ActiveCN104810863AGuaranteed Security ConstraintsAccurately obtainedSingle network parallel feeding arrangementsWind energy generationElectricitySimulation
The invention discloses an electric system active power real-time dispatching method considering wind power prediction error. The electric system active power real-time dispatching method comprises the following steps of describing random distribution character of the wind power prediction error by using Laplace distribution; by taking economic efficiency optimum and wind curtailment minimum as two targets, introducing a chance constraint condition; solving active power flow probability distribution of a system on the basis of a probabilistic power flow method for Latin hypercube sampling; establishing a buffer generator set active power optimum allocation model considering the wind power prediction error, and solving a chance constraint planning model by adopting an improved genetic algorithm. According to the electric system active power real-time dispatching method disclosed by the invention, the wind power prediction error is considered during real-time dispatching, power unbalance and flow off-limit brought to the system by wind power output offset can be avoided, and the safe operation of the system is guaranteed; moreover, while the wind power prediction error is assimilated, the wind power accepting ability is increased by the system.
Owner:SOUTHEAST UNIV
Wind energy storage system wide area optimizing configuration method
ActiveCN103050985AImprove access capabilitiesImprove receptivityEnergy storageAc network load balancingElectricityWide area
The invention discloses a wind energy storage system wide area optimizing configuration method, which is characterized in that the quantization ability of wind electricity admitted by a system is evaluated through comprehensive checking on voltage stability and voltage quality after wind power integration; an energy storage system is assessed for improving the wind electricity quantization admitting ability; the capacity of the energy storage system is determined according to different requirements of the admitting ability; and wide area optimizing distribution points and wide area selection points are carried out by the energy storage system based on a second order network loss sensitivity principle. With the adoption of the wind energy storage system wide area optimizing configuration method, various technical indexes are considered after the wind power integration; customization of the capacity of the energy storage system is comprehensively guided; and through the wide area configuration of the energy storage system based on the network loss sensitivity, the voltage stability of the system after the wind power integration is further enhanced, and the corresponding voltage quality is improved.
Owner:CHINA ELECTRIC POWER RES INST +1
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