125 results about "Fast charging station" patented technology

Systems and methods for charging a vehicle are provided. Electric or hybrid electric vehicles may be charged in areas with limited power availability or in situations where a gradual draw of power from an external energy source is desired. The external energy source may be used to charge a stationary energy storage system at a first rate, and the stationary energy storage system may be used to charge the vehicle energy storage system at a second rate. Preferably, the second rate may be greater than the first rate.

The invention provides a pantograph type current collector of electric automobile and an automatic rapid charging station. Two pantograph type current collectors are parallel installed on the electric automobile top which has a single main shaft driven by gas cylinder or hydraulic pressure cylinder, and can act local arc movement, a gimbal is installed on the current collector end, a current slide block is fixed on the gimbal; an output end of the electric automobile charging station is two parallel contact plates on the automobile road upper part, two ends of the contact plate has introduce arc and educe arc; the electric automobile runs over the automobile charging station with standard speed along the road under control by relative sensing, detecting and controller which can complete whole process of collecting bow, charging, de-charging and depressing bow automatically.

An opportunity charging system for a battery-powered, mobile mining machine employs inductive power transfer for transferring battery charging current produced by a rapid charging station to the battery of the machine. An alignment module of the charging station automatically aligns primary coils of the charging station with pick-up coils carried by the machine in response to detection of the presence of the machine at the charging station. The charging station is located along roadways of the mine normally traveled by production equipment.

An electric-vehicle charging facility is disclosed having at least one load-cycling-resistant energy-storage device. The electric-vehicle charging facility comprises at least one fast-charging station, hooked up to the AC power supply system that is connected via a transfer point to the general power grid, and comprises at least one load-cycling-resistant energy-storage device having an energy-storage device control unit, whereby the load-cycling-resistant energy-storage device is connected via an AC / DC transformer to the AC power supply system the electric-vehicle charging facility in order to store energy drawn from the general power grid and in order to deliver electric energy to the AC power supply system of the electric-vehicle charging facility response to the demand.

The invention discloses a highway electric vehicle quick charging station queuing algorithm. According to the algorithm, historical traffic flow data of vehicles on a highway are counted and fitted to obtain time records of electric vehicles at highway entrances on a typical day; charging threshold values of electric vehicle users are obtained according to a distance between every two adjacent charging stations on the highway, charging will and residual electric quantity of the vehicles; on the basis of analysis of charging station running characteristics and a classic queuing model, an index system of a quick charging station queuing model is established, and a method for calculating a queue length of each electric vehicle quick charging station, a queuing length, a vehicle waiting time and a charging station load is provided; combining the time records of all of the vehicles at the entrances, the charging time and the waiting time, an effectively charging time interval of each vehicle can be determined, so that the charging loads of each charging station at different time windows can be obtained. Through adoption of the method, dynamic simulation of running states of the highway electric vehicle quick charging stations can be realized.

The invention relates to a method and equipment for construction of a mobile storage-type electric vehicle rapid-charging station system. The mobile storage-type electric vehicle rapid-charging station system is a highly intelligent electric vehicle charging system in the industry of electric vehicles, which comprises three main subsystems, i.e. a charging management center, a mobile storage-type electric vehicle rapid-charging vehicle and a computer management scheduling system. The construction method of the electric vehicle rapid-charging station system provided by the invention has the advantages of low cost, flexible configuration, easy expansion and reasonable and feasible operation. In addition, the mobile storage-type electric vehicle rapid-charging station system can be constructed rapidly through lowering the configuration of the mobile storage-type electric vehicle rapid-charging vehicle and the suspension of the charging management center during the early period with fewer electric vehicles, so as to provide the rapid-charging service and rescue service for electric vehicles during the mobile operation and lay a road for the development of the industry of electric vehicles as soon as possible, and more electric vehicle rapid-charging station systems with more complete configuration can be constructed when the number of electric vehicles is larger.

The invention discloses an electric vehicle fast charging station site selection constant volume method based on a travel probability matrix, and relates to the technical field of electric vehicle public charging facility planning, and the method comprises the steps: obtaining road network parameters in a planning area; obtaining an OD travel matrix according to different types of electric vehicleroad traffic flow backstepping so as to obtain an OD travel probability matrix; Monte Carlo method, OD travel probability matrix and improvement speed. The flow model simulates a driving track of theelectric vehicle in one day to obtain a quick charge demand space-time distribution matrix in one day; the space-time distribution matrix of the fast charging demand is analyzed and optimized according to the site selection and constant volume optimization model of the charging station; the charging station position and the charger configuration number are obtained; according to the invention, the electric vehicle fast charging demand space-time distribution matrix is utilized, the Voronoi diagram is adopted to divide the service range of the charging station, the optimal position of the charging station is determined by improving the particle swarm algorithm, and the capacity of each charging station is optimized by utilizing the queuing theory, so that the planning result of the electric vehicle fast charging station is more accurate and scientific.

The invention relates to an optimizing configuration method for the amount of chargers of an electromobile charging station. The method comprises the following steps that (1) traffic flow of a selected charging station position is investigated, and the distribution relation between the traffic flow and time is analyzed; (2) a distribution rule of charging vehicles is extracted according to traffic flow information, and charging requirement of the fast charging station is calculated; (3) the mechanism service cost in unit time is calculated according to the construction cost, operation and maintenance cost, network loss cost and operation time limit of the fast charging station; (4) travel time of users of a city is used as waiting cost of the users; and (5) aimed at minimizing the expected value of the average total cost per day, the optimal amount of chargers of the charging station is calculated via a random service system model. Waiting cost and operation cost of the fast charging station are taken into full consideration during design, capacity configuration of the fast charging station can meet charging requirements of users, the service level is ensured, resources are optimized in configuration, and unnecessary waste is avoided.

The invention provides an APSO (Adaptive Particle Swarm Optimization) algorithm-based electric vehicle fast charging station optimized siting and sizing method. According to the method of the invention, the range of the quantity of charging stations to be constructed in a planning area is obtained according to the estimated charging demand of the planning area and the maximum and minimum capacitylimit of single fast charging stations; whole society cost is taken as the objective function of a current scheme with a charging station service radius and the charging station maximum charging capacity adopted as constraint conditions; and the APSO algorithm is adopted to solve the siting models of different number of charging stations, and a scheme enabling the lowest whole society cost is adopted as an optimized siting scheme; and optimized sizing is performed on the scheme which has completed siting through adopting a queuing theory, so that the optimized siting and sizing of the fast charging stations can be realized. The computational efficiency of the method provided by the invention is higher than that of a traditional PSO (Particle Swarm Optimization) algorithm, and the optimization result of the method is also significantly better than that of the PSO algorithm.

The invention relates to a charging management system and method of fast charging stations. The method includes the following steps that: an optimal charging station site is determined according to mileage by which a vehicle can run, the number of queued vehicles at a nearby charging station, the number of vehicles making charging reservations and the states of charging piles, and charging reservation is carried out, and a queuing number is acquired; when the vehicle enters a reserved charging station, the queuing number is obtained through a human-machine interaction unit, and the password of the queuing number is set through the human-machine interaction unit; and before the vehicle enters and exits from a charging parking space, the queuing number and the password of the queuing number are required to be inputted at a human-machine interaction unit, and a parking space control rod can be opened after the system successfully verifies the queuing number and the password of the queuing number, and then, the vehicle can enter or exit from the charging space, and the parking space control rod is closed after the vehicle enter or exit from the charging space. With the charging management system and method of the invention adopted, phenomena of space occupation of non-electric vehicles and space occupation of electric vehicles after changing can be avoided, and integrated and coordinated management of various of devices and services can be realized, and safe, efficient and stable operation of the fast charging stations can be also realized, and charging station services from charging reservation to charging completion can be intellectualized and networked.

The invention provides a configuration and constant volume method for charging facilities in an electric taxi fast charging station. The method comprises steps: a distribution law for station entering time intervals and charging durations of electric taxis is analyzed, and an in-station queuing model type of the electric taxi fast charging station is determined; the in-station investment cost and the user time cost in unit time are measured; an objective function for an in-station charging facility configuration optimization model and constraint conditions are determined; the in-station charging facility configuration optimization model is built, and the optimal configuration number of the in-station charging facilities is solved and obtained; and according to the optimal configuration number of the in-station charging facilities, the distribution capacity of the electric taxi fast charging station is calculated. The problems that the electric taxi fast charging station is low in load utilization rate, poor in distribution economy, unreasonable in facility number configuration and the like are solved, the electric taxi fast charging station investment cost and the user staying time cost are considered thoroughly, and reasonable resource configuration of the fast charging station is ensured.

A system and method for providing extreme fast charging of electric vehicles that mimics the typical gas station experience while also supporting local grid energy management using a distributed network of extremely fast charging stations to form a large virtual resource for the grid. The system consists of a controller unit responsible for system operation tasks, a high-voltage battery pack capable of rapid discharge rates to support extreme fast charging, a cloud-based database to persist and manage system and network data, a DC electric vehicle outlet for providing charging, safety systems, and power electronic equipment configured to allow bi-directional flow of power between a local, low-voltage AC grid and the extreme fast charging station. The bi-directional capabilities of the power electronic circuits within the system allow the charging station to provide power resources, stored within the high-voltage battery pack, to help support local grid power consumption.

A DC charging circuit for an electric vehicle includes a neutral-point clamped (NPC) rectifier and a DC / DC buck converter. The NPC rectifier is configured to convert three-phase AC power to a first DC voltage at a rectifier output stage. The DC / DC buck converter includes a first DC stage coupled to the rectifier output stage, and a second DC stage configured to be coupled to the electric vehicle. The DC / DC buck converter is configured to convert the first DC voltage to a second DC voltage to be supplied to the electric vehicle.

A search and navigation method and a search and navigation system based on electric vehicle fast charging stations are provided. The search and navigation method comprises the following steps: a user terminal acquires positioning information of the location of an electric vehicle and sends the positioning information to a server; the server calls an electronic map from a database, reads the positioning information, puts the positioning information in a corresponding position of the electronic map, searches charging stations near the location, and sends interface inquiry information to the first and second nearest charging stations relative to the location of the electric vehicle; after receiving the interface inquiry information, the charging stations check the number of remaining charging interfaces, generate confirmation results, and feed the confirmation results back to the server; and the server reads the confirmation results of the first and second nearest charging stations, lists the charging station having remaining charging interfaces as a navigation target, generates route navigation information according to the location information of the charging station and the positioning information of the location of the electric vehicle, and sends the route navigation information to the user terminal for route navigation.

The invention discloses a direct-current fast charging station managing system and method for an electric automobile from power grid. A power distribution network sends a power utilization plan to a direct-current fast charging station monitoring system, a power distribution network energy management system sends a real-time power limiting instruction to the direct-current fast charging station monitoring system, the direct-current fast charging station monitoring system sends a power limiting instruction to the electric automobile in a station according to the information issued by a power distribution network, a vehicle-mounted controller conducts responding on the power limiting according to the requirements of a user and automobile states, real-time coordination control is conducted on the electric automobile which is connected in, and the charging power of the electric automobile is controlled in real time. Coordination control among the power distribution network, the direct-current fast charging station and the user of the electric automobile is achieved.

The invention relates to a method and a device of charging segmented billing for an electric vehicle fast charging station. The method comprises the following steps: determining the parking fee of theelectric vehicle according to the parking time of the electric vehicle; determining the charging fee of the electric vehicle according to the charging power consumption of the electric vehicle; determining the charging service fee of the electric vehicle by using a time-sharing service fee objective function of the electric vehicle and constraint conditions thereof; determining the total chargingfee of the electric vehicle by using the parking fee, the charging fee and the charging service fee of the electric vehicle. According to the technical solution provided by method and device of charging segmented billing for the electric vehicle fast charging station, a time-sharing service fee price strategy is established, and a reference basis for the electric vehicle fast charging station operator to flexibly formulate the service fee and the parking fee price is provided. Through the difference of service fees in different time periods, the user can be guided to charge during the low charging period, which can alleviate the peak-to-valley difference of the power grid, reduce the occupancy of the charging pile in charging peak, and improve the utilization rate of the charging pile throughout the day.

The invention provides an operation monitoring system for an electric automobile fast charge station. The operation monitoring system is characterized by comprising an equipment layer, a spacing layer and a station control layer, wherein the equipment layer is composed of bottom hardware equipment; the spacing layer is composed of subsystem control modules; and the station control layer is used for coordinating and controlling all the sub-modules of the spacing layer. According to the technical scheme provided by the invention, the user experience of the electric automobile under a fast charge mode is greatly promoted, the innovation for the operation mode of the charging facilities of the electric automobile in a fast charge mode is boosted, and the popularization and application of the fast charge mode of the electric automobile can be promoted.

The invention relates to an intelligent shared energy block with positioning reservation and identification functions, and belongs to the field of new energy applications. The problems of "range anxiety" and charging inconvenience of an electric vehicle are becoming more and more significant. Measures such as extending the range on one charge and setting up a sufficient number of fast charging stations can alleviate the problems, but will result in the waste of charging pile investment, too much occupation of land by "parking spaces", battery life reduction and other waste of resources. The invention provides the intelligent shared energy block, which mainly comprises an energy block housing, not less than one battery module, not less than one battery state monitoring and management module, an intelligent IoT module, a whole vehicle communication and control module and a peripheral interface, has an independent electronic identity, and is capable of intelligent positioning and remote reservation and fast completion of recharging by way of direct warehouse replacement or addition. The intelligent shared energy block in the invention realizes remote reservation and completes fast andconvenient recharging without expanding charging piles or parking lots, and thoroughly solves the problem of "range anxiety".

The invention discloses an electric vehicle fast charging station energy storage monitoring system and method based on deep learning. According to the invention, a deep learning algorithm is used to construct a set of electric vehicle fast charging station energy storage monitoring system; The energy storage monitoring comprehensive evaluation method based on deep learning is provided, feature learning and efficient and accurate calculation processing are carried out on big data, a calculation result is obtained, and the problems that data monitoring points in a fast charging station are many,the data size is large, manual processing and evaluation difficulty is high, and efficiency is low are solved.

The invention relates to an electric bus fast charging station service fee pricing obtaining method. The method comprises: importing collected electric bus original parameter data into a chicken flockalgorithm; setting a charging service fee charging scheme, and constructing a double-layer planning model; setting a cost constraint by taking the operation annual income of an operator as an upper-layer objective function, and calculating the upper-layer objective function to obtain an initial charging service fee pricing; optimizing by utilizing a chicken flock algorithm, and calculating a lower-layer objective function by taking the charging service fee of each time period obtained after initialization as a control variable and taking the minimum daily charging cost of the electric bus charging station as an objective function; obtaining a charging method of the electric bus according to an optimization result of the lower-layer objective function, and feeding the charging method backto the upper layer; and the upper-layer planning model performs electricity price adjustment according to the feedback of the lower layer, and obtains the global optimal charging service fee pricing of the fast charging station of the double-layer planning model. Compared with the prior art, the method provided by the invention has the advantages of ensuring maximization of operator revenue, goodrobustness and the like.

The invention discloses a power distribution network hybrid optimization scheduling method considering an optical storage and fast charging integrated station, and the method comprises the steps: building a road traffic network model, a driving speed and path model of an electric vehicle, and a travel time model of the electric vehicle, and building a charging load model of the fast charging integrated station based on the three models; on the basis of the charging load model, adopting an uncertainty set to represent the photovoltaic output and the range of the original load in the power distribution network,taking the minimum overall operation cost of the power distribution network to which the fast charging integrated station belongs as an objective function, and setting constraint conditions to establish a power distribution network robust optimization scheduling model of the fast charging integrated station; decomposing the model into a main problem model and a sub-problem model; obtaining the worst scene of power flow operation of the power distribution network by optimizing photovoltaic output and the total number of time periods of an original load selection interval boundary value in a scheduling period; and solving the optimal solutions of the main problem model and the sub-problem model by adopting a column constraint generation algorithm. Decision of the energy storage system of the fast charging station in an uncertain environment can be adjustably and flexibly achieved.

The invention provides an electric vehicle fast charging station energy storage system based on source-network-load-storage cooperative service and method thereof. The method comprises the steps of: collecting real-time data of devices at each monitoring point of an energy storage system; acquiring operation measurement information of a power distribution network and prediction information of a distributed power supply and a flexible load corresponding to a long-time scale, acquiring a power distribution network topological structure, real-time load data and weather information, and predictingan operation situation of the power distribution network data through data fusion and analog simulation according to the power distribution network topological structure, the real-time load data, theweather and other information; comparing the data characteristics of a source layer, a network layer, a load layer and an energy storage layer, analyzing the data and energy transfer flow between thelayers, mining the coupling relationship between the data flow and the energy flow, finally obtaining the optimal load ratio of the energy storage system of the electric vehicle fast charging station, establishing an optimal scheduling model, and solving an optimal scheduling value; by setting different scheduling targets, managing collaborative scheduling services of different hierarchies.

The invention relates to a modularization multiport type electric car quick charging station based on a high-frequency isolation technology. The modularization multiport type electric car quick charging station is characterized by comprising a 10 kV / 0.38 kV alternating-current transformer, a 0.38 kV / 0.38 kV isolation type transformer, a modularization rectifying device, a high-frequency isolation direct-current transformer, a DC-DC converter, a new energy power generation system, an energy storage system and a background monitoring and intelligent managing system which carries out real-time monitoring. The charging station has the advantages of being small in occupied space, high in system converting efficiency, low in power grid harmonic pollution and safe, convenient and quick to use, new energy system direct current grid connection is convenient, and the system integration degree is high.

This invention, an antenna height self adaptive device for quick charging station with super capacitance of an electric car, mainly comprises of a charging station bracket (2) and its clamping bolt (1) and insulator (3), self adaptive height adjusting bolt (4) , guide bushing (5) and its bracket (6), reset and buffer spring (7), locking nut (8), bracket for the charging station antenna (10) and so on, aims to safeguard the stability of the quick charging process and the reliability of this charging system by ensuring the normal contacting pressure of the electric bow and the charging station antenna to allow the charging station antenna height having a bigger free change zone in order to adapt to the height change of the electric bus and the charging station.

The invention provides a battery equipment and fast recharging station capable to recharge the battery in a very short period of time, due to the new design of the recharging stations, battery chargers, inlets and battery connectors. This new design consists in the use of a plurality of battery power supply units per recharging station, which is capable to connect all these power supply units simultaneously to a battery, via a plurality of battery chargers and inlets. For recharging, the battery has many terminals connected to all power supply units of the station and means to switch it from recharging to supplying mode. Bigger the number of power supply units, shorter is the battery recharging time and smaller the area of the recharging station. May be used for on-board recharging electric vehicles, or off-board recharging battery for bicycles, motor-cycles, portable tools.

The invention relates to a fast charging station system. The system structure of the fast charging station comprises: an expandable energy storage module comprising a plurality of parallel power battery packs and respective bidirectional DC voltage conversion circuits, which are connected with the fast charging piles, and each branch is independently controlled by a management unit. The power supply module comprises an AC / DC voltage conversion circuit and a three-phase four-wire alternating current input connected in parallel with the expandable energy storage module. The fast charging pile isconnected with the energy storage power supply module and transmits power to the battery to be charged through the charging joint. The energy management unit is connected with the expandable energy storage module and the grid power supply module, and sends commands to each control circuit. Compared with the prior art, the invention has the advantages of saving cost, high working efficiency, flexible configuration, environmental protection and the like.

The invention discloses an energy storage power station operation control method and system considering battery life. The method comprises: obtaining parameter data of a fast charging station area containing energy storage; determining peak clipping power and valley filling power of the energy storage power station according to the parameter data of the fast charging station area containing energystorage; according to the parameter data of the energy storage-containing fast charging station area, determining an operation control objective function of an energy storage-containing fast chargingstation area energy storage power station considering the service life of a battery; determining charging and discharging target power of the energy storage power station through a genetic algorithm;and determining the optimal charging and discharging power of the energy storage power station through a preset control strategy. According to the invention, the energy storage power station participates in peak clipping and valley filling control of the quick charging station area containing energy storage and improves the economic benefit of the quick charging station area containing energy storage, the service life of the battery is considered, the discharge depth of the energy storage battery is controlled within a reasonable range, the purpose of delaying the attenuation of the service life of the battery is achieved, and the regional economy of the quick charging station containing energy storage is improved.

The invention discloses an optimal location planning method for electric vehicle fast-charging stations in a city distribution network. By analyzing the factors such as the busy degree of a road network in a city, taking the minimum sum of the distances by which all the electric vehicles reach the nearest fast-charging stations as the optimal objective, the optimal locations of the fast-charging stations can be obtained through solving, which can save the distance costs of charging of the electric vehicles and facilitate the charging of the electric vehicles.

The invention relates to an off-network removable fast charging system and a management method. The off-network removable fast charging system comprises a removable container fast charging unit and acentralized energy storage and dispatching management station, wherein the removable container fast charging unit comprises a removable container, a battery energy storage pile, a multi-line intelligent high-voltage case (MLiC), and an on-board fast charger are arranged in the removable container, and the off-network removable container fast charging unit adopts the battery energy storage pile torely on the built-in multi-line intelligent high-voltage case (MLiC) and the on-board fast charger of the removable container in the absence of grid power supply and other external facility supporting, so that the fast charging services can be independently provided for a plurality of new energy vehicles; and the centralized energy storage and dispatching management station provides grid fast charging or renewable energy recharging for the off-network movable container fast charging unit. According to the off-network removable fast charging system, the off-network removable container fast charging unit is not limited by distribution license and grid capacity limiting, on the basis of giving full play to a decommissioned battery standard case for conducting rapid charging of many electric vehicles, the large-scale commercial distribution of fast charging stations is promoted, the charging cost of the electric vehicles is effectively reduced, and the charging convenience is improved.