Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
82results about How to "Guaranteed uninterrupted power supply" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Photovoltaic power generation system structure integrating energy storage and grid-connected and off-grid power supply functions and control method
InactiveCN103532214ARealize functionImplement featuresBatteries circuit arrangementsClimate change adaptationRenewable power generationLoad following power plant
The invention discloses a photovoltaic power generation system structure integrating energy storage and grid-connected and off-grid power supply functions and a control method, which can realize storage and conversion of renewable energy sources such as solar energy to electric energy and meanwhile have gird-connected and off-grid power supply functions. The structure comprises a photovoltaic component, a direct current-direct current booster circuit, a three-phase inverter circuit, an isolating transformer, a PCC (Programmable Computer Controller) grid-connected switch, a local load and the like. According to the control method, seamless switching between grid-connected / off-grid working modes of the system can be realized, and stepless regulation of output power of photovoltaic batteries and optimal management of accumulators can also be realized. Compared with the conventional photovoltaic grid-connected inverter, the photovoltaic power generation system has the prominent advantages of simple structure, rich function, high power supply reliability and the like, contributes to improving the utilization efficiency of renewable energy resources for power generation and has excellent application and generalization prospect.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
Microgrid coordination control system and method based on state transition
InactiveCN102394497AAchieve smooth transitionGuaranteed uninterrupted power supplySingle network parallel feeding arrangementsAc network load balancingPower qualityOperating instruction
The invention discloses microgrid coordination control system and method based on state transition. The microgrid coordination control system comprises a load measurement and control module, a power distribution network measurement and control module, a distributed power supply measurement and control module and an energy storage device measurement and control module which are respectively in bidirectional connection with a central controller through signal transmit-receive modules; all loads, power distribution networks, distributed power supplies and energy storage devices are connected with a microgrid bus through fling-cut switches (the distributed power supplies and the energy storage devices are provided with corresponding interfaces); all the measurement and control modules are in bidirectional connection with the corresponding fling-cut switches; one output of the distributed power supply measurement and control module is connected with a corresponding power electronic / rotary interface; the outputs of the energy storage device measurement and control module are connected with the power electronic interfaces of the energy storage devices; and the central controller sends operating instructions to all the measurement and control modules according to all acquired information, so as to achieve coordination control of all controlled elements. The system provided by the invention can meet the power quality requirement, has high reliability in power supply for sensitive loads, and achieves continuous supply to significant loads.
Owner:CHONGQING UNIV
Micro-grid operation mode seamless switching method based on energy storage current transformer
ActiveCN103560535ARealize seamless switchingGuaranteed uninterrupted power supplyAc network load balancingIslandingPower grid
A micro-grid operation mode seamless switching method based on an energy storage current transformer achieves that when a micro-grid is converted from isolated island operation into grid-connected operation, the energy storage current transformer actively detects state switching of the micro-grid, and correspondingly the micro-grid is converted from off-network operation into grid-connected operation. Through quasi-synchronization grid-connected control, smooth transition from energy storage current transformer power supply to main grid power supply is achieved. A load side continuously supplies power, a load is not affected by voltage fluctuation generated when the micro-grid is connected to a main grid, and continuous power supply of the load is guaranteed. The micro-grid operation mode seamless switching method achieves continuous and uninterruptible power supply to the load in the switching process of the micro-grid operation states, and a control policy has good universality.
Owner:BEIJING SIFANG JIBAO AUTOMATION +1
Secondary discharge battery internal resistance on-line detecting method
InactiveCN101071161AGuaranteed uninterrupted power supplyGuaranteed accuracyResistance/reactance/impedenceElectrical testingInternal resistanceEngineering
The invention is a method of on-line detecting storage battery resistance by secondary discharge, characterized by arranging discharge circuits and II for each cell, adopting secondary discharge and difference value calculation method and thus able to effectively avoid the effect of output current of the rectified power supply, implementing on-line measurement of storage battery resistance and assuring uninterrupted power supply to load.
Owner:HEFEI UNIV OF TECH
Method for changing tension simulators from live 10kV power supply line
InactiveCN102545094AEnsure safe and normal power supplyReduce adverse effectsApparatus for overhead lines/cablesQuality of serviceIndustrial service
The invention discloses a method for changing tension simulators on live 10kV power supply line, which includes steps: firstly, confirming weather conditions; secondly, preparing; thirdly, changing the tension insulators on the live 10kV power supply line and includes step 1 insulation shielding, step 2 mounting insulating tightening racks and insulating tighteners, step 3 mounting backup insulating protective pull cords, and step 4 changing the tension insulators. The method can change defective tension insulators timely when the power supply line supplies power normally, guarantee safe and normal power supply of the power supply line, avoid adverse effects of power outage upon power supply enterprises and power consumers, improve power supply reliability, increase power sales, improve industrial service quality, and guarantee uninterrupted power supply for the consumers.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
DC-driven mobile refrigeration equipment
ActiveCN101898500AReduce power lossReduce fuel consumptionAir-treating devicesVehicle heating/cooling devicesPower controllerPower switching
The invention discloses DC-driven mobile refrigeration equipment, which comprises a thermal insulation library body embedded with a refrigeration system and a power supply system. A compressor of the refrigeration system is a DC variable frequency compressor powered by secondary DC voltage; and the power supply system comprises a dual-power DC generator capable of outputting first DC voltage and second DC voltage and a battery which is charged by the second DC voltage. The battery and the dual-power DC generator form two power sources for supplying power to the DC variable frequency compressor; and a power source controller is connected between the battery and the dual-power DC generator and the DC variable frequency compressor. The power source controller at least comprises a power switching module capable of automatically switching the DC variable frequency compressor from dual-power DC generator power supply to battery power supply when a vehicle engine runs at a low rotating speed and automatically switching the DC variable frequency compressor from battery power supply to dual-power DC generator power supply when the vehicle engine runs at the normal rotating speed. The DC-driven mobile refrigeration equipment has the advantages of capacity of refrigerating under the vehicle stop condition, stable refrigerating capacity and high refrigerating accuracy.
Owner:ZHEJIANG BOYANG COMPRESSOR
Access control equipment of access control system
InactiveCN104333123AGuaranteed uninterrupted power supplyPower network operation systems integrationIndividual entry/exit registersPower switchingStandby power
The invention discloses an access control equipment of access control system, the access control equipment includes: a first detecting unit, used for detecting whether the voltage of a main power supply is below a predetermined voltage value, if yes, the first detecting unit sending a preparation instruction to a power switching unit, otherwise sending a recovery instruction to the power switching unit; a second detecting unit, used for sending a switching instruction if the duration reaches predetermined time in the condition that the voltage of the main power supply is below the predetermined voltage value; the power switching unit, used to disconnect a power supply path between the main power supply and a standby power supply based on the preparation instruction, disconnect a power supply path between the main power supply and an access control host and switch on a power supply path between the standby power supply and the access control host according to the switching instruction, and switch on the power supply path between the main power supply and the access control host and switch on the power supply path between the main power supply and the standby power supply and disconnect the power supply path between the standby power supply and the access control host according to the recovery instruction. The disclosure can provide uninterrupted power supply for the access control equipment.
Owner:CHENGDU BOSSE INFORMATION TECH
Wide area self-adaptation spare power automatic switching method based on synchronous phasor measurement
ActiveCN102904331AGuaranteed uninterrupted power supplyAvoid lostEmergency power supply arrangementsRegional powerDecision-making
The invention discloses a wide area self-adaptation spare power automatic switching method based on synchronous phasor measurement. By means of topology analysis, an association relationship between buses and lines is determined, a mode of operation of the lines and the buses is recognized, an initial operation state is recorded, faulty area, normal power supply area and area to be restored are determined, whether small power sources in a regional power grid are required to be immediately removed or not is determined, if the small power sources in the regional power grid are not required to be immediately removed, a spare power automatic switching power source is subjected to a quasi-synchronization grid connection, otherwise, all small power circuit switches in the area to be restored are tripped off, all non-fault working power source switches in a power-loss area are tripped off, and power restoration process is completed through circularly searching for power supply buses to be restored and closed corresponding line switches. According to the wide area self-adaptation spare power automatic switching method based on the synchronous phasor measurement, a centralized decision-making coordination mode which is specific to the integrated power grid is utilized so that a novel spare power automatic switching method has the advantages that the wide area is achieved, the method is capable of being self-adaptive to operation mode and the small power sources access to the power grid.
Owner:ELECTRIC POWER SCHEDULING CONTROL CENT OF GUIZHOU POWER GRID CO LTD +1
Lifting type rail insulation operation platform
ActiveCN102623923AAvoid misuseProtection securityLifting devicesApparatus for overhead lines/cablesMobile deviceIndustrial engineering
The invention discloses a lifting type rail insulation operation platform which comprises a mobile device and an insulation platform body that is provided with a rail, wherein the mobile device comprises an up-down lifting device, a left-right moving device and an insulation platform bracket; the up-down lifting device comprises a guide rail, a worm and gear device, a pulley block, a lifting rope and a lifting limiter; the worm and gear device is arranged at the bottom end of the guide rail; the pulley block comprises guide rail pulleys fixed on the insulation platform bracket and used for clamping the guide rail and a lifting pulley penetrating and guiding the lifting rope; one end of the lifting limiter is fixed on the insulation platform bracket, the other end of the lifting limiter is matched and fixed with the guide rail; the insulation platform bracket is arranged in front of the guide rail and is fixed with the insulation platform body, the insulation platform bracket moves up and down along the guide rail through the guide rail pulleys arranged at the upper end and the lower end of the bracket; and the left-right moving device comprises a support pulley, two pulley chains and a metal fixing chain. According to the invention, up-down and left-right regulations of an operation position can be carried out, thus the safety of a hot line work is improved.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
Self-powered alarm terminal of wireless monitoring system
InactiveCN101656429AGuaranteed call to the policeGuaranteed uninterrupted power supplyNetwork topologiesAlarmsData transmissionEngineering
The invention relates to a self-powered alarm terminal of a wireless monitoring system, which belongs to the fields of energy-saving technologies and wireless audio and video transmission technologiesin monitoring and alarm systems. Two power supply ways of a hand-cranked generator and a solar cell are adopted for power supply, thereby providing an uninterrupted working power supply for the terminal; and the alarm terminal supports the WiFi wireless transmission protocol, provides the bandwidth above mega level, realizes the real-time two-way transmission of voice and video data and comprisesan automatic positioning device, so that the alarm terminal can be applied in a variety of emergency alarm application scenarios which can not rely on an external power supply and are positioned in remote areas or harsh environments. The alarm terminal has the advantages of reliable and safe data transmission, and simple and fast network erection.
Owner:太原瀚智科技发展有限公司
Active distribution network fault recovery method with consideration of random variation of distributed power supply outputs
InactiveCN109120009AGive full play toGuaranteed uninterrupted power supplyContigency dealing ac circuit arrangementsSingle network parallel feeding arrangementsIslandingDistributed power
The invention relates to an active distribution network fault recovery method with consideration of random variation of distributed power supply outputs. The method is characterized by comprising thefollowing steps: step one, carrying out active distribution network island division based on a depth and breadth alternate joint strategy; and step two, on the basis of comprehensive consideration offault recovery whole-period flow changes, carrying out active distribution network reconstruction optimization by using a low-offset stochastic simulation method. Therefore, the maximum output of theDG is utilized fully and loads are recovered as many as possible; and uninterrupted power supply of important loads is ensured.
Owner:ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO +2
Lithium-ion storage battery pack power supply and communication automatic switching method
ActiveCN106712174AAutomatic control to ensure safetySafe by designPower network operation systems integrationElectric powerAutomatic controlLow voltage
The invention relates to a lithium-ion storage battery pack power supply and communication automatic switching method, which adopts a control system circuit composed of an anti-backflow circuit, an output switching control circuit, a charge switching control circuit, a switching detection and control circuit, a lithium-ion battery pack protection circuit, a power supply circuit, an electricity meter, a switching circuit of the electricity meter, and a electricity meter circuit, wherein the electricity meter is used for communicating with an external charger, the electricity meter circuit is used for communicating with a host computer. The control circuit adopted by the method integrates a battery protection function, an electricity meter function, a power supply switching function, a communication switching function and the like, is high in integration degree, has good compatibility, occupies small space, and can realize overcurrent protection, short-circuit protection, low-voltage protection and overcharge protection of the battery pack. The lithium-ion storage battery pack power supply and communication automatic switching method ensures that a system supplies power to electrical equipment in an uninterrupted manner, ensures the safety of circuit automatic control in the absence of external power supply equipment; and the circuit design is safe and reliable, the power consumption is small, the efficiency is high, the cost is low and the application effect is very significant.
Owner:天津蓝天特种电源科技股份公司
Built-in uninterrupted power supply of wind power generation paddle changing system
InactiveCN102013727AGuaranteed uninterrupted power supplyPower network operation systems integrationWind energy generationElectricityEngineering
The invention provides a built-in uninterrupted power supply of a wind power generation paddle changing system, comprising a first switch power supply electrically connected with a mains supply, and further comprising a built-in DC battery pack of the wind power generation paddle changing system and a second switch power supply connected with the DC battery pack, output ends of the first switch power supply and the second switch power supply are respectively connected with two input ends of a comparator, and output voltage of the first switch power supply in power-up state is always more than that of the second switch power supply. The built-in uninterrupted power supply of a wind power generation paddle changing system mainly has the following benefits: the standby battery pack of the wind power generation paddle changing system is used as the uninterrupted power supply, uninterrupted power supplying of the wind power generation paddle changing system is ensured, and circuits are simple and effective.
Owner:SUZHOU NENGJIAN ELECTRIC
Island heuristic load reduction model construction method for active power distribution network
InactiveCN105405072AImprove operational reliabilitySave energyData processing applicationsInformation technology support systemElement modelEcological environment
Disclosed is an island heuristic load reduction model construction method for an active power distribution network. The method comprises the following steps: constructing element models when an island runs, including a blower fan output model, a photovoltaic output model, a load model and a storage battery model; constructing a load reduction model; and solving an island load reduction model. According to the invention, the island heuristic load reduction model construction method for the active power distribution network is fast in operation speed and small in occupied memory, is used for rapidly determining a load reduction strategy, helps to improve the operation reliability of the active power distribution network, guarantees uninterrupted power supply of an important load, facilitates utilization of a renewable distributed power source, saves fossil energy and protects the ecological environment.
Owner:STATE GRID CORP OF CHINA +3
Hybrid energy storage off-network photovoltaic power generation system
InactiveCN104767470AGuaranteed uninterrupted power supplyPV power plantsEnergy storageElectrolysisHybrid energy
The invention relates to the field of off-network independent photovoltaic power generation systems, in particular to a hybrid energy storage off-network photovoltaic power generation system. The hybrid energy storage off-network photovoltaic power generation system comprises a photovoltaic array, a BUCK type DC / DC convertor, a BOOST type DC / DC convertor, a super capacitor, an electrolysis device, a fuel cell, an MPPT trace controller, an inverter and a load. The controller traces the maximum power point of the array, and charging and discharging of an energy storage device are controlled. Accordingly, the use ratio of the photovoltaic array is high, the farad capacitor is fully utilized, the charging rate is high, the cycle life is long, the problem that the energy storage service life of an existing off-network photovoltaic power generation system is not long is solved, storage batteries are replaced by the fuel cell, the cycle life is long, the environment is protected, and the heavy metal pollution brought by the storage batteries is reduced.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
Method for rapidly opening and closing mirror field
ActiveCN103728984AShort adjustment timeEliminate driftSolar heating energySolar heat collector controllersSun trackingEngineering
The invention provides a method for rapidly opening and closing a mirror field. The method for rapidly opening and closing the mirror field is used for opening and closing the mirror field of a tower type solar thermal power plant and comprises the steps that a heliostat of the mirror field is switched to a first-stage field opening posture before field opening of the heliostat; the heliostat is switched to an operation sun-tracking posture from the first-stage field opening posture; the heliostat is switched to a first-stage field closing posture before field closing of the heliostat; the heliostat is switched to a field closing finishing posture from the first-stage field closing posture. Through scientific scheduling of the mirror field when the mirror field is opened and closed, the method for rapidly opening and closing the mirror field guarantees the safety of a heat absorber to the maximum extent, shortens the time for opening and closing the mirror field, lowers the cost of spare batteries, and increases the actual operation power generating time of the mirror field.
Owner:QINGHAI SUPCON SOLAR POWER GENERATION
10kV line operating state online monitoring system
InactiveCN105871059ASolve hidden defectsAccurately grasp the running statusPower network operation systems integrationInformation technology support systemMonitoring systemTower
The invention discloses a 10kV line operating state online monitoring system. The online monitoring system comprises a monitoring terminal, a wireless communication network and a remote monitoring platform, wherein the monitoring terminal is arranged on the monitoring point of the 10kV line and used for obtaining the onsite real-condition information of the 10kV line and sending the information to the remote monitoring platform through the wireless communication network; the remote monitoring platform receives the onsite real-condition information of the 10kV line from the monitoring terminal and determines whether the operating of the 10kV line is abnormal or not according to the onsite real-condition information of the 10kV line; and the onsite real-condition information of the 10kV line comprises video / image information of the 10kV line / tower. According to the online monitoring system, the 10kV line / tower can be comprehensively monitored by collecting the onsite real-condition information of the 10kV line; the operating state of the 10kV line / tower can be mastered accurately in time; and various kinds of shortcomings and potential dangers existing in the line can be found and solved in time so as to take preventive measures in advance.
Owner:PINGYIN POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO +1
Loosening-preventing and automatic-fastening device of connection bolts for combination and fixation of storage batteries
The invention discloses a loosening-preventing and automatic-fastening device of connection bolts for combination and fixation of storage batteries. According to the loosening-preventing and automatic-fastening device, a ratchet sleeve is arranged on the front side of a fixed connection handle, a ratchet is arranged inside the ratchet sleeve, fixed inner teeth are arranged on the inner side of the ratchet, ratchet teeth are arranged on the outer circumference of the ratchet, receding stopping grooves are formed in the inner side of the ratchet sleeve, receding stopping springs are arranged in the receding stopping grooves, a receding stopping pin is arranged on the front side of each receding stopping spring, a fixed clamping base is arranged on the rear side of the fixed connection handle, and a tension spring is arranged on the upper side of the fixed clamping base. When copper connection bars of a storage battery pack are twisted slightly, and alternatively vibration is produced due to environmental factors, the ratchet teeth prevent the bolts from moving in the loosening direction under the action of the receding stopping pins, the bolts are pushed to rotate in the fastening direction, and the function of automatically fastening the bolts is achieved.
Owner:桑永礼
Intelligent mobile monitoring system
InactiveCN105554417AEasy to moveImprove mobilityTelevision system detailsColor television detailsMonitoring systemData transmission
The invention provides an intelligent mobile monitoring system, comprising a management control platform and a mobile monitoring vehicle in communication connection with the management control platform; the mobile monitoring vehicle comprises a vehicle body; a monitoring processing device is installed on the vehicle body; the monitoring processing device comprises an audio collection unit, a video collection unit, a data processing unit and a data transmission unit. The intelligent mobile monitoring system of the invention is convenient in movement and strong in maneuverability and is independent of territory restrictions; audio signals and image signals can be collected in real time omnidirectionally; panoramic views and independent perspective views recorded in the environment sound field signals are input synchronously; meanwhile, uninterruptible power supply is ensured by multiple power supply modes.
Owner:BEIJING SHENZHOU DIGITAL SOURCE TECH CO LTD
Intelligent energy system based on power electronic transformer
InactiveCN110535137ABlocking fault deliveryMeet the needs of flexible access to the power systemSingle network parallel feeding arrangementsAc network load balancingTransformerLow voltage
The invention relates to the field of power intelligent energy systems and discloses an intelligent energy system based on a power electronic transformer, which comprises a power electronic transformer, an AC / DC converter, an AC / AC converter, a DC / AC converter, a DC / DC converter, a photovoltaic and the like distributed power supply, an electric automobile, an energy storage system, a DC load, an AC load and various AC generators. According to the intelligent energy system based on the power electronic transformer disclosed in the invention, the power electronic transformer module is formed bythe AC / DC converter, a two-way DC / DC converter and the AC / DC converter, the power electronic transformer can thus be used for switching among four states of DC low voltage, AC low voltage, DC high voltage and AC high voltage, and compared with the traditional transformer which is only suitable for transmission of single-frequency and one-way voltage, the power electronic transformer can be almostsuitable for voltage two-way transmission under all conditions, frequency and voltage conversion is very flexible, and fault transmission at the two ends of the transformer can be effectively blocked.
Owner:启东沃太新能源有限公司
Intelligent wristband with body temperature power generation and power supply function
InactiveCN103734937AGuaranteed uninterrupted power supplyGenerators/motorsProtective garmentGyroscopeElectrical battery
The invention discloses an intelligent wristband with a body temperature power generation and power supply function. The intelligent wristband comprises a wristband body. An ARM main board, a polymer battery, a charging control module, a GPS positioning module, a three-axis gyroscope, an acceleration sensor and a temperature difference power generation element are arranged inside the wristband body or on the wristband body, wherein the polymer battery, the charging control module, the GPS positioning module, the three-axis gyroscope and the acceleration sensor are electrically connected with the ARM main board, and the temperature difference power generation element is connected with an input end of the charging control module. Charging ends of the charging control module are connected with the positive electrode of the polymer battery and the negative electrode of the polymer battery. According to the intelligent wristband, by arranging the temperature difference power generation element to conduct power generation and power supply on the polymer battery through the body temperature, it is ensured that power is unceasingly supplied to the intelligent elements such as the ARM main board, the GPS positioning module, the three-axis gyroscope and the acceleration sensor.
Owner:ZHONGSHAN YESHM COMMODITIES
Local control method for energy management unit of household microgrid energy router
ActiveCN110535190AAlarm in timeGuaranteed uptimeBatteries circuit arrangementsSingle network parallel feeding arrangementsMicrocontrollerMicrogrid
The invention discloses a local control method for an energy management unit of a household microgrid energy router, and aims to research and develop household microgrid energy router energy management unit equipment for a household microgrid system formed by household photovoltaic power generation equipment, lithium battery energy storage equipment and typical household appliances and for the problems of stable operation, cooperative control and the like of the system. When the commercial power fails, the household microgrid energy router energy management unit equipment is in local linkage with a DC lighting main control unit DCU to execute an MEMS simple scheduling command and allow the most appropriate household microgrid to supply power to the DC lighting LED, and the main-standby complementation of the AC power grid and the household light storage DC microgrid is achieved. The EMU integrates a single-chip microcomputer containing different operation control strategies, provides aset of control logic of the household microgrid in a grid-connected mode, an off-grid mode and a limited mode, achieves household-level microgrid routing energy management scheduling and coordinationcontrol of multi-voltage-level sequence AC / DC bus energy flow, and achieves maximum utilization of photovoltaic power generation.
Owner:天津大学(青岛)海洋工程研究院有限公司
Special solar intelligent power supply for service station
InactiveCN101369734ARealize automatic switchingGuaranteed uninterrupted power supplyBatteries circuit arrangementsSecondary cells charging/dischargingElectricityEngineering
The invention relates to a solar intelligent power-feeding apparatus for petrol-filling stations, wherein the signal output terminal of a electricity-recharging / discharging controller (5) is connected to the signal input terminal of a switching device (4); the power supply input terminal of the switching device (4) is connected to the mains supply (2) by a second electric meter, and the power supply output terminal of the switching device (4) is connected with the other power supply input end of a distributor box (8). The apparatus implements the automatic switchover of solar power and commercial power, and assures uninterrupted power supply of the petrol-filling stations.
Owner:田仁德
Ring main unit self-powered system
InactiveCN103414244AGuaranteed uninterrupted power supplySimple structureBatteries circuit arrangementsElectric powerCapacitanceCurrent sensor
The invention discloses a ring main unit self-powered system which comprises a first transformer, a second transformer, a current sensor and a third transformer, wherein the first transformer, the second transformer, the current sensor and the third transformer are sequentially connected. The ring main unit self-powered system further comprises a rectifier, a super capacitor, a relay, an inverter, a digital signal processor, a temperature sensor and a humidity sensor, wherein the rectifier, the super capacitor, the relay and the inverter are sequentially connected. An input end of the first transformer is connected with the alternating current; an input end of the rectifier is connected with an output end of the first transformer; an output end of the inverter is connected with an input end of the third transformer; the digital signal processor is respectively connected with the current sensor, the relay, the temperature sensor and the humidity sensor. The ring main unit self-powered system is low in cost and capable of guaranteeing continuous electricity supply to a ring main unit under various conditions, especially in the high-temperature environment and in the low-temperature environment.
Owner:STATE GRID CORP OF CHINA +2
New-energy power generator grid-connection system
InactiveCN104600751AAchieve runnabilityGuaranteed uninterrupted power supplySingle network parallel feeding arrangementsPhotovoltaic energy generationPower factorNew energy
The invention discloses a new-energy power generator grid-connection system comprising a new-energy power generator. The new-energy power generator is connected with a load through a bus and powers the same. The bus is connected with an external grid through a main breaker. The input end of the external grid is provided with a grid voltage sensor. The bus is provided with a bus voltage sensor. The grid voltage sensor and the bus voltage sensor are both connected to a central processing unit. The central processing unit is connected with the main breaker through a master controller control module. The load, gas power generation and a photovoltaic generation branch can be flexibly controlled, the modes such as grid-connected operation and wheeling operation are guaranteed, a transistor is used as a grid connection device after the system is in sync with the power grid, low impact and high reliability are ensured for synchronous grid connection, a power checking mode is provided, penalty paid for an excessively low grid-connected operation power factor is avoided, photovoltaic generated power is utilized as far as possible according to actual conditions to provide power, utilization efficiency of energy is increased, energy is saved, and emission is decreased.
Owner:陕西华泰汇丰能源科技有限公司
Microgrid coordination control system and method based on state transition
InactiveCN102394497BAchieve smooth transitionGuaranteed uninterrupted power supplySingle network parallel feeding arrangementsAc network load balancingPower qualityOperating instruction
Owner:CHONGQING UNIV
Vehicle Intelligent Power Distribution Control System
ActiveCN103532219BRealize intelligent monitoring functionMeet Timing RequirementsEmergency power supply arrangementsDistribution controlControl system
Owner:BEIJING INST OF SPACE LAUNCH TECH +1
Automatic capacity checking device and capacity checking method for direct-current power supply system of transformer substation
PendingCN113507162AReduce manual interventionReduce manual involvementBatteries circuit arrangementsSingle network parallel feeding arrangementsElectrical batteryTransformer
The invention relates to an automatic capacity checking device and a capacity checking method for a direct-current power supply system of a transformer substation, and the device consists of a storage battery pack AC / DC rectifying circuit, a DC / AC inverter circuit, a capacity checking circuit, a bidirectional buck-boost circuit, a battery management system, a communication interface and a dynamic monitoring circuit, the AC / DC rectifying circuit and the multi-path backup storage battery pack supply power to the direct current bus; and when capacity checking of discharging and charging of a storage battery pack is needed, an online capacity checking method is adopted, the discharging voltage and the charging voltage are adjusted through a bidirectional buck-boost circuit in the capacity checking circuit, a power grid is discharged through a DC / AC inverter circuit while a direct-current load is discharged, the discharging speed is increased, the AC / DC rectifying circuit is used for carrying out constant-current charging on the storage battery pack, stability of direct-current bus voltage is guaranteed in the discharging and charging process, automatic detection and remote monitoring of the charging and discharging state of the battery are achieved, human intervention is reduced, and recycling of discharging electric energy is achieved.
Owner:WENZHOU ELECTRIC POWER BUREAU +2
Movable electrical inspection application system
InactiveCN101853439AImprove accuracyConvenient queryData processing applicationsInformatizationWeb service
The invention discloses a movable electrical inspection application system, which is characterized in that: the system comprises a PC server, a database server, a PC interface end, a PC workstation, a GPRS network, a mobile terminal and a printing terminal, wherein the PC server sets Web service to provide a website service; the database server sets an Oracle database to provide a data storage service; a PC interface end is provided with a Web Service interface to realize the data exchange between the database server and the mobile terminal and marketing MIS; the PC workstation is used for allowing users to access website service and enabling the mobile terminal to access an enterprise MIS network; the mobile terminal realizes overall process management of electrical inspection service such as task formulation, information inquiry, hidden danger evaluation, document entry, error registering, on-site evidence collection, result uploading and the like by adopting PDA equipment and installing electrical inspection programs; and the printing terminal realizes the on-site printing of working results of the electrical inspection programs on the hand-held mobile terminal. The movable electrical inspection application system is used for realizing the electronization, informatization and standardization management of electrical inspection work.
Owner:HEFEI POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER
China network enterprise culture implementation system based on project of intentions
ActiveCN104318362AImprove communication efficiencyLower technical barriersResourcesGeolocationThe Internet
The invention discloses a China network enterprise culture implementation system based on the project of intentions. The enterprise culture implementation system is established by use of the Internet, an Internet-of-Things terminal, a mobile terminal and an information issuing terminal; the enterprise culture implementation system is capable of sensing the geographic position of a user in real time, and immediately pushing culture information to the user and propagating culture ideas at high efficiency. The enterprise culture implementation system enables the culture information management department to issue culture information in real time by use of WeChat; the technical difficulty of information management and issuing is reduced and the whole issuing process is more real-time and effective; in this way, the whole issuing process is simple and real-time, and real-time and accurate effective information can be provided for the users to the utmost extent.
Owner:WENZHOU ELECTRIC POWER DESIGN
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com