Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

952 results about "Supply and distribution" patented technology

Full automatic traffic cone discharging, collecting and storing special vehicle

The invention discloses a full automatic traffic cone discharging, collecting and storing special vehicle which comprises a discharging and collecting device arranged at the rear end of the vehicle-mounted chassis rear end and connected with a moving device controlling the discharging and collecting device to move. A traffic cone position entering device is arranged on a vehicle-mounted chassis, a conveying device is arranged between the discharging and collecting device and the traffic cone position entering device, and the traffic cone position entering device is connected with a storing device which is of a multi-layer structure and arranged on the vehicle-mounted chassis. The discharging device, the moving device, the conveying device, the traffic cone position entering device and the storing device are connected with an intelligent control system and a power supply and distribution system. The full automatic traffic cone discharging, collecting and storing special vehicle can finish full-automatic discharging, collecting and storing operation of traffic cones at any position in a road and can store a large number of traffic cones automatically to meet traffic cone discharging requirements for short intervals and large strokes, is especially suitable for automatic discharging and collecting of the traffic cones during traffic guiding and temporary road sealing for high ways and urban express ways with large traffic flow.
Owner:BEIJING SHENJIANG AIR COOLED ENGINE +1

Distributed type power supply zone branch circuit three-phase load current balance monitoring method and device

The invention discloses a distributed type power supply zone branch circuit three-phase load current balance monitoring method and device and belongs to the field of power supply and distribution devices. At least one three-phase load current balance main controller is arranged, load current signals of each phase circuit in each branch loop are collected, according to the obtained load current signals of each phase circuit, the three-phase current unbalance rate or the mean value of the three-phase current unbalance rate of each branch loop is computed, and the unbalance situation of three-phase load current of each branch loop is judged. The magnitude of load current in each unit meter box of each branch loop is collected, and the phase of unit meter box load which needs to be adjusted is determined. According to the three-phase load current unbalance situation of a certain branch, a control instruction is issued to an automatic phase-changing switch in a unit meter box corresponding to the branch loop, converting of load phases is carried out, adjusting of three-phase load current balance of each branch loop on the low-voltage side of a distribution transformer is achieved, and the real balance of distribution transformer low-voltage side main loop three-phase load current is guaranteed.
Owner:宿迁卡诗博工贸有限公司

Fault on-line repairing method for satellite power supply and distribution test system

ActiveCN101713802AWith fault online repair functionFor quick replacementElectrical testingEngineeringSolar cell
The invention discloses a fault on-line repairing method for satellite power supply and distribution test system, which can fast repair the fault of power supply and distribution test equipments on line in thermal tests, aging tests and other tests in which the satellite needs continuous powering up. The internal components of the power supply and distribution test equipments are encapsulated in the plug-in or guide-way form, and simultaneously modular structure designing method is adopted to lead a magnetic latching relay can be fast replaced when in fault; the digital quantity output and input adopt dual redundant configuration, and the analog quantity output signals are displayed by a measurement display unit; the solar cell array simulator output is directly loaded on the satellite via independent interface; a flow backward resisting diode is connected in series between a voltage stabilization source power supply positive line, and an analog quantity outgoing line is connected with a protective resistor in series to prevent the on-satellite products from being influenced by cable plugging when the satellite is powered up; on the basis of satellite-ground synergic design, the redundant resources can be started by fast replacing the faulted modules one faults occur to the equipments to realize equipment on-line repairing.
Owner:AEROSPACE DONGFANGHONG SATELLITE

Electric energy supply system for electric vehicle

The invention provides electric energy supply system for an electric vehicle, and particularly relates to a highly intelligent electric energy supply system for the electric vehicle. The electric energy supply system comprises a power supply and distribution system, a charging system, a monitoring system and a metering and billing system; the charging system comprises a direct current charger and an alternating current charging pile; the metering and billing system comprises a gateway meter, a direct current ammeter, an alternating current ammeter, a metering manager and a billing system; and the monitoring system comprises power supply and distribution system monitor, charging system monitor and a monitoring center. The electric energy supply system for the electric vehicle improves the intelligence and the automation level of the electric energy supply system for the electric vehicle while meeting the basic function of the electric energy supply system for the electric vehicle, and achieves the purposes of unattended operation or few-people on duty and economical, safe and efficient running of the electric energy supply system for the electric vehicle. The configuration scheme and the equipment selection method for the electric energy supply system for the electric vehicle provide the specific design reference for the construction of a charging station for the electric vehicle.
Owner:STATE GRID CORP OF CHINA +1

Aerospace craft power supply and distributor based on solid power control technique

The invention discloses an aerospace craft power supply and distributor based on a solid power control technique. The aerospace craft power supply and distributor comprises a control module, a plurality of power supply and distribution modules and a fault monitoring module, wherein the power supply and distribution modules are correspondingly connected with power supplies with different voltage values; the power supply and distribution modules comprise a plurality of access switch circuits based on the solid power control technique; the control module is used for receiving external power distribution control instructions and emergency power distribution control signals, and used for controlling all access switches in the power distribution modules to be opened and closed to supply power to corresponding powered equipment; the fault monitoring module is used for receiving detection instructions of a comprehensive measurement controller, used for acquiring state information, voltage information and current information of different access switch circuits of the power supply and distribution modules, and used for reporting detection results to an external comprehensive measurement controller. By adopting the aerospace craft power supply and distributor, intelligent management of a power supply and distribution system can be achieved, and the reliability, the maintainability and the expandability of the system can be greatly improved.
Owner:BEIJING INST OF ASTRONAUTICAL SYST ENG +1

Modular micro-satellite platform configuration

The invention provides a modular micro-satellite platform configuration, which comprises a bottom plate, a top plate, a first side plate, a second side plate, a third side plate, a fourth side plate, a payload interface module, a satellite and rocket docking module, an altitude control and integration electronic module, a mechanical solar wing module, a propelling module, an integrated solar cell array module and a power supply and distribution module, wherein each side plate is connected with the bottom plate and the top plate respectively, and each of the second and fourth side plates has an embedded frame structure to form a box plate type configuration structure with embedded frames; the satellite and rocket docking module is connected with the bottom plate; the integrated solar cell array module is connected with the top plate; the payload interface module is connected with the first side plate; the altitude control and integration electronic module is connected to the embedded frame of the second side plate; the propelling module is connected with the third side plate; the power supply and distribution module is connected to the embedded frame of the fourth side plate; the mechanical solar wing module is connected to the second and fourth side plates respectively. The modular micro-satellite platform configuration has the advantages of light weight, high bearing capacity, short production cycle and high reliability and universality.
Owner:SHANGHAI SATELLITE ENG INST

Real-time computing method for theoretical line loss of low-voltage distribution room

The invention discloses a real-time computing method for the theoretical line loss of a low-voltage distribution room with dynamic change of the number of users and the power consumption. The real-time computing method comprises the following steps of (1) selecting the type of a model, utilizing the unique optimal approximation character of an RBF (Radial Basis Function) neural network, i.e., any continuous function can be approximated by any precision, adopting the RBF neural network with an online learning function to establish a dynamic model for a power supply and distribution system in the low-voltage distribution room; (2) determining the structure of the model, and determining the structure of the neural network model (neuron) according to the number of the users and the power consumption characteristic in the low-voltage distribution room; (3) identifying parameters of the model; (4) carrying out computation on the theoretical line loss by utilizing the model. The real-time computing method has the advantages that the implementation method is simple, and the neuron network is adopted for constructing the system model, so that the influence of external factors on results is reduced, and further the computing precision is high.
Owner:深圳龙电华鑫控股集团股份有限公司 +1

Electrical system for electrical plant of thermal power engineering and design method

The invention relates to an electrical system for an electric power plant of thermal power engineering and a design method. The architecture layer of the system comprises a digital model layer, an electrical component equipment layer, an electrical system design layer, a document process management layer and a third-party system interaction layer from bottom to top, wherein the digital model layeris used for storing digital models in a design process of the electrical system; the electrical component equipment layer is used for providing a database support for electrical design of an electrical system design layer; the electrical system design layer is used for selecting electrical components required by the electrical system, completing the wiring design of the electrical system according to all the digital models and a database provided by the electrical component equipment layer, and generating corresponding documents; the document process management layer is used for providing document management and user authorization management; the third-party system interaction layer is used for interacting data with a third party system and exporting parsed data into other systems. The design method disclosed by the invention has the advantages that the whole range of the electric power system for the electrical plant can be designed, a power supply and distribution network can be quickly designed, and various data texts consistent with international standards and conventions can be automatically generated, so that the design efficiency is improved by 50 percent or above comparedwith that of a traditional mode.
Owner:四川电力设计咨询有限责任公司

Integrated energy saving system of power supply and distribution system

The invention relates to an integrated energy saving system of a power supply and distribution system, wherein all energy saving devices and power quality control devices of the power supply and distribution system are integrated to form the integrated energy saving system which implements unified control to cause the power supply and distribution system to always run in the most economical manner; in every subsystem, all the energy saving devices are unified to work coordinately and cooperatively so that the distribution network can achieve the best energy saving effect. The integrated energy saving system structurally comprises a supervisory computer monitoring module, a communication module and a plurality of execution submodules; the supervisory computer monitoring module carries out visual and real-time control to the whole system and adopts a mass memory device and a large management database; the communication module adopts the Ethernet, a fieldbus and wireless communication device and other modules of the system for communication; the execution submodules comprise a comprehensive series-control energy saving device, a configuration monitoring device, a fieldbus device, a reactive power compensation device, a voltage stabilizing device, a harmonic wave regulating device, a frequency control device and an intelligent box-type substation device.
Owner:LU SHANDONG ELECTRIC POWER GRP CO LTD

10 kV line loss and low voltage district line loss management analysis method

The invention discloses a 10 kV line loss and low voltage district line loss management analysis method, and belongs to the field of power supply. The method comprises the steps that a distribution network line loss standardization management mode and a line loss management system are built; all links of line loss work are arranged, the work focus of line loss management is grasped, a point-like line loss management mode is formed, and the integrated line loss management mode is guided through clear labor division and tacit cooperation, so that the line loss rate of power supply enterprises is gradually lowered, electric energy consumption in the power supply and distribution process is reduced, and the economical increase value of power supply enterprises is improved. By building the standard line loss management application system, an assistant decision support is provided for user fault repair and positioning, high-load distribution transformer transformation, district load distribution and the like, the phenomena such as equipment damage caused by late fault repair and long-time overload are effectively reduced, and the economic loss value of power supply enterprises is remarkably lowered. The 10 kV line loss and low voltage district line loss management analysis method can be widely used in the field of power supply management and energy conservation.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO

Autonomous management system of satellite lithium-ion battery pack power supply subsystem

The invention discloses an autonomous management system of a satellite lithium-ion battery pack power supply subsystem. The autonomous management system comprises an in-orbit management module, an emergency protection module, a balance control module and a lower computer module, wherein the in-orbit management module is used for preventing a lithium-ion battery pack from being excessively charged; the emergency protection module is used for preventing the lithium-ion battery pack from being excessively discharged; the balance control module is used for balancing the voltage among various single lithium-ion batteries in the lithium-ion battery pack; and the lower computer module is used for sampling and comparing the voltage of various single lithium-ion batteries in the lithium-ion battery pack. Through charging and discharging adjustment control on the battery pack and shunt adjustment of excessive power output by a solar cell array, transform control on the power supply subsystem is finished; the power supply stability of a busbar and various subsystems is kept; and the power supply and distribution requirements of load on the satellite are met. According to the autonomous management system, in-orbit full-autonomous control on the satellite lithium-ion battery pack power supply subsystem is achieved; and the reliability of the system is also greatly improved fundamentally.
Owner:SHANGHAI SATELLITE ENG INST

PLC and 1553B based portable equivalent device for carrier rocket test-launch control system

ActiveCN102809937AAbbreviated self-testStreamline recovery timeProgramme control in sequence/logic controllersSystem integrationProgrammable logic controller
The invention relates to a carrier rocket ground test-launch control system, and discloses a PLC (Programmable Logic Controller) and 1553B based portable equivalent device for a carrier rocket test-launch control system. The carrier rocket test-launch control system comprises a comprehensive circuit combination, a PLC combination and an equivalent device emulational terminal, wherein the comprehensive circuit combination is mainly used for isolating and conditioning a rocket-ground signal; the PLC combination is equipped with corresponding functional modules and used for completing functional simulation of an on-rocket power supply and distribution system and a time sequence system; and the equivalent device emulational terminal is mainly used for completing both communication simulation of a rocket-ground 1553B bus and monitoring control of the PLC. The PLC and 1553B based portable equivalent device solves the problems of a conventional equivalent device equipment system, such as complicated constitution, more intermediate adapter cables, poor portability and the like, and obtains the benefits of high system integration level, less adapter cables, good portability and the like.
Owner:SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM

Power supply equipment

The invention discloses power supply equipment, which belongs to the field of power supply and distribution. The power supply equipment is designed for solving the problems of larger occupied space and high cost the power supply equipment in the prior art. The power supply equipment comprises a plurality of alternating current/direct current conversion units of which the direct current output ends are connected in parallel, wherein each alternating current/direct current conversion unit comprises a first alternating current input end, a first electromagnetic interference filtering and protecting module, a first rectification unit, a first power factor correction module, a second alternating current input end, a second electromagnetic interference filtering and protecting module, a second rectification unit, a second power factor correction module and a combination module; the first alternating current input end, the first electromagnetic interference filtering and protecting module, the first rectification unit and the first power factor correction module are connected in sequence; the second alternating current input end, the second electromagnetic interference filtering and protecting module, the second rectification unit and the second power factor correction module are connected in sequence; the combination module is respectively connected with the first power factor correction module and the second power factor correction module; and a direct current/direct current conversion module is connected with the direct current output end and the combination circuit.
Owner:HUAWEI TECH CO LTD

DC high current ice fusion device with static dynamic no-power compensation function

The invention relates to a direct current heavy current thawing device with the function of a static type dynamic reactive power compensation, which belongs to the corollary equipment technical field of a high-low voltage power supply and distribution system; the invention is characterized in that a three-phase alternating current wave filter is connected to a generatrix in parallel; an intermediate point of a three-phase high voltage heavy current controlled silicon valve is connected with the generatrix through a three-phase alternating current reactor; the negative electrodes of the controlled silicon valve are selectively connected with the generatrix through the three-phase alternating current reactor; the positive electrode and the negative electrode of the same phase and the same electrodes of the different phases of the three-phase high voltage heavy current controlled silicon valve are respectively in selective connection; a trigger signal emitted by a controller triggers the conduction of the three-phase high voltage heavy current controlled silicon valve through optical fibers. The direct current heavy current thawing device combines direct current heavy current thawing technology and static type dynamic reactive power compensation technology, realizes corresponding functions according to different requirements on the spot for electricity consumption, can obviously reduce the corollary equipment cost of the power supply and distribution system, effectively improves the utilization rate of the equipment, can be used as a direct current heavy current thawing device with controllable current when line freezes and can be also used as a static type dynamic reactive power distribution device.
Owner:ZHEJIANG GUIRONG XIEPING TECH

Isolated power grid stability control system

The invention discloses an isolated power grid stability control system based on a power grid with a small capacity which breaks away from a large power grid. The isolated power grid stability control system is an important quality indicator and reflects a balance state between supply and demand of active power of a power system. Stable frequency is an important aspect of the power system stability. Normal frequency deviation of the power system is allowed to +/- o.2 Hz. Therefore, at the instant that generating capacity is insufficient and an isolated power grid appears, part load is removed timely according to a decreased amplitude value of the isolated power grid frequency. A turbo generator control system and a load monitoring grading system are designed entirely to enable turbo generator units to keep coordinate control, and safe and stable operation of a power supply and distribution system of a power grid is guaranteed. According to the actual use of load, a turbo generator governing valve works through a digital electro-hydraulic control system (DEH) interface, balance between power generation and power consumption is achieved, quickness of primary and secondary frequency modulation of a generator is ensured, and stability of the system frequency is guaranteed.
Owner:深圳市康必达中创科技有限公司

Opening surge current control device suitable for spacecraft power supply and distribution system

The invention relates to a startup surge current suppression device applicable to a spacecraft power distribution system, which is a surge current suppression circuit connected between a relay and electric equipment. The startup surge current suppression device comprises a first fuse, a second fuse, a time-delay fusing resistor, a divider circuit, a first capacitor, a second capacitor and an N-channel field-effect transistor, wherein the first fuse and the second fuse are connected in series in a loop; the first fuse and the time-delay fusing resistor are connected in series, and then connected in parallel with the second fuse; the divider circuit is connected in series in the loop; the first capacitor and the second capacitor are used for adjusting a startup time-delay parameter; the first capacitor and the second capacitor are connected in series, and then connected in parallel with a third resistor; and the N-channel field-effect transistor is connected in series among the fuses, the electric equipment and a power supply loop. The startup surge current suppression device is applicable to an on-off circuit of the spacecraft power distribution system, can effectively reduce startup surge current caused by capacity charge in a starting process, and prolong the service life of contacts of the relay.
Owner:NAT SPACE SCI CENT CAS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products