352results about How to "Reduce charging costs" patented technology

A battery pack includes a battery module that charges and discharges electricity to be used to drive a vehicle, and a monitoring controller for monitoring charge of the battery module. The monitoring controller stores past charge records and past discharge records in a charge-discharge history. Based on an analysis of learning data of a charge-discharge cycle in the charge-discharge history, the monitoring controller determines a charge operation, which may either be a normal charge or a quick charge, for charging the battery. The normal charge provides a charging electric current per unit time that is less than the charging current per unit time of the quick charge.

The invention discloses an electric automobile orderly charging control method based on a peak-valley time-of-use tariff. According to electric automobile charging characteristics and user traveling habits, the charging demand of an electric automobile is obtained through Monte Carlo simulation, an electric automobile orderly charging optimization strategy is established, a two-stage optimizationmodel with the lowest electric automobile total charging cost and the minimum power distribution network load peak-valley difference as targets is established, so that the purposes of the optimal charging cost and power grid load peak-valley difference leveling are achieved, the economical efficiency of a user and the stability of a power grid are guaranteed, finally, the two-stage optimization model is solved through erection of CPLEX based on MATLAB, the solving speed is high, efficiency is relatively high, influence of disorderly charging on the power grid is effectively reduced, and orderly charging control of the electric automobile is achieved.

The invention discloses an orderly charging control method, controller and system. The orderly charging control method is suitable for direct-current charging piles and includes: and includes: acquiring real-time load of a station transformer, real-time charging demanded power of vehicles and real-time running condition of the charging piles; on the premise that the load of the station transformerdoes not exceed a limit, formulating an orderly charging strategy, and issuing the same to the charging piles, wherein the orderly charging strategy includes: charging the vehicles according to preset priority and preset output power of the charging piles if total charging demanded power of the vehicles does not exceed current residual power of the station transformer; when the total charging demanded power exceeds the current residual power, the charging piles with higher priority work at full power in a prioritized manner, and the charging piles with lower priority charge through power smooth adjusting. By the method, orderly charging of electromobiles is realized, and matching between charging load of the electromobiles and power supply capacity of a power distribution network is realized through orderly charging control by utilizing the characteristic of energy-type load of the electromobiles, so that power supply of the electromobiles and running safety of the power distributionnetwork are ensured.

The invention discloses a cluster electric vehicle charging behavior optimization method based on deep reinforcement learning, and belongs to the technical field of new energy vehicle optimization management. The invention relates to a deterministic strategy gradient algorithm based on double delay depths. Modeling is carried out on the power continuous adjustable charging process of the electricvehicle, an intelligent agent is trained to control the charging power, the charging behavior of the electric vehicle is optimized, the load when the time-of-use electricity price is high is transferred to the load when the electricity price is low, and the purposes of reducing the user charging expenditure and stabilizing the peak-time load of a power grid are achieved. Compared with a traditional optimization control method, the TD3 has obvious advantages in speed and flexibility, and the problems that an existing reinforcement learning method is discrete in action space, difficult in training convergence and poor in stability can be effectively solved. In order to enhance the generalization ability of the intelligent agent, noise is added on the basis of original state observation, a group of electric vehicles with different initial SOCs and different arrival and departure time are simulated, and the method is expanded to cluster electric vehicle charging behavior control.

The invention relates to a charging control method and system for a charging station. The method comprises following steps: charging demand data of the charging station in a set cycle is collected and analyzed, and distribution parameters of historical charging demands in each sub-cycle are obtained; demand prediction data of the charging station in the next cycle is calculated according to the distribution parameters; a charging scheme of the charging station is set according to the demand prediction data, wherein the charging scheme comprises charging modes, charging equipment access time and charging power; the charging process of the charging station is controlled in the next cycle according to the charging scheme. With the adoption of the technical scheme of the charging control method and system for the charging station, the charging process of the charging station is controlled orderly, the charging demand of each electric automobile is met, and the charging cost of the charging station is reduced.

The invention discloses an induction type wireless electric energy transmission system capable of outputting constant current and constant voltage. The system is composed of a transmitting part and a receiving part. A constant-current and constant-voltage switching circuit (I) of the transmitting part is characterized in that a primary constant-voltage capacitor (CPv) is serially connected between a high-frequency inverter (H) and a primary coil (LP); after an additional parallel capacitor (CPp) is serially connected with a first switch (S1), an assembly which is composed of the additional parallel capacitor and the first switch is parallelly connected with a primary constant-voltage capacitor (CPv); the control end of the first switch (S1) is connected with a first controller (K1); or a primary constant-current capacitor (CPi) and an additional serial capacitor (CPs) are successively connected serially between the high-frequency inverter (H) and the primary coil (LP); a second switch (S2) is parallelly connected with the additional serial capacitor (CPs); and furthermore the control end of the second switch (S2) is connected with a second controller (K2). The induction type wireless electric energy transmission system can output constant current and constant voltage and furthermore has advantages of convenient control, high system operation stability, simple structure and low manufacture cost.

The invention provides a centralized intelligent dispatching method for charging a plug-in hybrid electric vehicle (PHEV), which belongs to the research field of power system demand side response and is especially suitable for a plug-in hybrid electric vehicle (PHEV) of peak load regulation. The invention is established on the basis of a dynamic estimation interpolation concept, and mainly comprises the following parts: real-time information extraction, PHEV dynamic cataloging, load per-unit transformation, boundary condition detection, singular load analysis, load estimation interpolation, load index evaluation and charging cost calculation. The invention can dynamically dispatch the charging time periods of the PHEV, thereby effectively reducing the risk and hidden danger which are brought by the load singularity of the grid side, indirectly lowering the investment into newly arranged generating equipment at the grid side and saving the charging cost at the user side, and realizing the purpose of benefiting both the grid side and the user side.

The invention discloses a stereo garage with an intelligent charging function. The stereo garage comprises a garage body, an illumination system, a garage intelligent control system and a touch screen, wherein a plurality of car carrying plates, a car carrying plate guide rail device, a car carrying plate driving device, a charging connector and a storage battery are arranged on the garage body; the car carrying plate driving device is used for controlling the car carrying plates to move on the car carrying plate guide rail device; a solar panel is arranged on the top end of the garage body; and the garage intelligent control system comprises a main control unit, a parking control unit, a car charging control unit and a solar control unit. The parking control unit comprises a car carrying plate control module and a charging module; and the automobile charging control unit comprises a charging time control module and a charging connector control module. The stereo garage with the intelligent charging function has the advantages that more parking spaces can be provided under the condition of the specific area, so that the problem of parking difficulty is solved; meanwhile, the charging can be performed, so that the problem of charging difficulty can also be solved during parking; and the charging can be performed in the low tide period of electricity consumption so as to reduce the charging cost, and the like.

The invention provides an auxiliary primary frequency modulation and optimization control method for battery energy storage systems. The auxiliary primary frequency modulation and optimization control method is characterized by comprising the following steps: obtaining the power shortage and the power grid frequency deviation change rate of primary frequency modulation; obtaining the modulation proportional coefficient of the battery energy storage system; computing the output power value of the battery energy storage system, determining the amendment opportunity and the amendment degree of the battery in a charging state, and amending. According to the method provided by the invention, the deficiency that a generator unit is insufficient in power change is made up; and the energy storage system is rapid in response speed, thus facilitating the faster recovery of power grid frequency. After the frequency modulation is completed, on the premise that the power grid frequency is not caused to cross a dead zone, SOC of the battery is corrected, next smooth frequency modulation process is ensured, the situation of time-of-use electricity price is comprehensively considered, charging cost for energy storage is reduced, and back discharge proceeds are increased.

The invention provides an electric vehicle charging guidance method considering road-network-vehicle, which considers the charging demand difference of different types of electric vehicles, performs optimized guidance scheduling on the electric vehicles in slow charging and fast charging modes from two aspects of day-ahead and real-time. The method comprises the following steps: establishing an electrical traffic cooperative control architecture; formulating a charging station selection and navigation strategy; formulating a time-sharing and zoning electricity price to guide quick charging; and establishing a double-layer optimization scheduling model to guide slow charging. According to the method, on the premise that the safety and economy of a power distribution system are guaranteed, the satisfaction degree of power consumers is considered, and different charging requirements, time and space and other factors are considered to research the guide strategy and operation mode of the electric vehicle. Analysis of the charging station and system load conditions before and after optimization shows that the method enables the system load to be gentler than that in a free charging mode, plays a role in peak clipping and valley filling to a certain extent, and improves the operation safety and economy of a power system.

The invention discloses an electric vehicle economic dispatching method based on demand response. The electric vehicle economic dispatching method comprises the steps of firstly, outlining an economic dispatching model; secondly, proposing an electric vehicle charging strategy based on the demand response, optimizing a charging electricity price trigger value of electric vehicle users based on network real-time electricity price information, reducing charging cost for the users; meanwhile, studying an electric power system unit commitment containing large-scale electric vehicles; and on that basis, establishing an electric vehicle economic dispatching model based on the demand response through the prediction of behavioral features of the electric vehicle users. The invention is aimed at maximizing profits of grid companies, the charging electricity price of an electric vehicle is optimized, and the charging load of the electric vehicle can be shifted.

The invention discloses a control method for large-scale orderly electric vehicle charging and discharging. The control method for large-scale orderly electric vehicle charging and discharging comprises the steps that order charging and discharging control strategy calculation is started according to the newest user charging demand information, an overall charging and discharging demand boundary curve and an overall charging load guiding curve of all the electric vehicles connected to charging and discharging machines within the management range of a control center and the charging or discharging power of each electric vehicle are calculated in sequence, the charging and discharging machines are controlled according to the finally determined charging and discharging powers to charge or discharge the electric vehicles, and orderly charging and discharging control is achieved. The control method for large-scale orderly electric vehicle charging and discharging depends on calculation of a simple optimization model, the calculation efficiency is high, the requirement for the hardware environment of the control center is low, calculation resources are effectively saved, the minimization of charging cost can be achieved, and the difference between a load peak and a load valley of a power grid system is improved.

The invention provides a direct current limiting and circuit breaking device based on the countercurrent injection method, comprising a circuit breaker, a precharging circuit, a countercurrent generating circuit, an absorbing circuit and a self-charging circuit; wherein, the countercurrent generating circuit comprises an LC circuit which is composed of a first electric inducer and an electric capacitor connected in series and is connected with a first thyristor and a second thyristor respectively at the two ends, the cathode of the first thyristor and the anode of the thyristor are respectively connected with the first electric inducer and the electric capacitor in the LC circuit, the anode of the first thyristor is connected with the a end of the circuit breaker and the cathode of the second thyristor is connected with the b end of the circuit breaker; the self-charging circuit is connected with the LC circuit in parallel; the cathode of the first thyristor is also connected with one end of the precgarging circuit and the other end of the precharging circuit is connected to the ground; a first diode is arranged between the first and the second thyristor, the anode of the second thyristor is connected with the cathode of the first diode and the anode of the first thyristor is connected with the anode of the first diode.

The invention relates to the technical field of charge management of vehicles, in particular to a method for orderly charging an electric vehicle based on TOPSIS sorting. The method includes the stepsof collecting electricity load information, parking lot information and electric vehicle index information in the residential area; monitoring the state of charging piles in a parking lot, and updating the number of available charging piles according to the current residential area load; judging whether the current time belongs to the charging time in the time strategy, setting the number of available charging piles to 0 If it is not a charging period, and sorting the charging sequence of the electric vehicle by the TOPSIS method If it is a charging period; outputting the orderly selection scheme of the current moment so that the charging piles work according to the selection result, and repeating the information collection step for circulation. The method for orderly charging the electric vehicle in the residential area based on the TOPSIS sorting can reasonably arrange the orderly charging of the electric vehicle while ensuring that the load in the residential area does not exceed the limitation, not only improves the completion rate of the charging and saves the charging cost, but also is conductive to an application of the electric vehicle charging in the residential area witha tight distribution power.

A coordination charge control method for an electric bus quick charge station includes initiating load information and electric price information of a power distribution grid of a main control computer in future 24 hours; acquiring battery information of an electric bus and a serial number of the electric bus and sending the information and the serial number to the charge station; performing parameter configuration of the main control computer; making a coordination charge control strategy of the electric bus quick charge station; enabling a client to send control signals to different chargers for controlling the switching of the chargers. Therefore, the coordination charge control of all electric buses in the quick charge station is realized and effective allocation of power resource is realized under the premise of satisfying electric energy requirement of the buses.

The invention relates to a charging station electric car charging system and particularly relates to an electric car battery charger time division multiplexing charging system and charging method. The system comprises a charging unit, a charging bus, a charging bus switch, a plurality of charging branch distribution boxes, branch buses, a terminal bus and a charging control unit. The charging unit configures the terminal bus to the charging branch distribution boxes by the charging bus switch through the charging bus. The plurality of the charging branch distribution boxes and the terminal bus are in equipotential connection, that is, the positions of the plurality of the charging branch distribution boxes are equal to perform multiplexing on the charging bus in a time-division and alternate mode to achieve remote multiplexing on the charging bus. By means of the method and the system, a large number of cables are saved, the battery charger utilization efficiency is improved, and the electric car charging cost is reduced.

The invention discloses an electric vehicle reservation charging control method and system. The electric vehicle reservation charging control method includes the steps that an Internet-of-vehicles service platform receives a reservation charging request sent by a user through a mobile terminal or a vehicle-mounted MP5 and sends the reservation charging request to a T-Box, and the reservation charging request carries charging reservation time; after receiving the reservation charging request, the T-Box outputs a reservation charging request flag bit to a vehicle-mounted charger; the car charger judges whether reservation charging is successful or not after receiving the reservation charging request flag bit, and if reservation charging is successful, the car charger feeds back a reservation successful status to the T-Box and enters into a dormant state; the Internet-of-vehicles service platform starts background timing, and the T-Box is woken and a start charging request is sent to the T-Box when the charging reservation time is reached; and after receiving the start charging request, the T-Box wakes up a vehicle controller and a power battery management system through a CAN network to enter into an alternating current charging process. The electric vehicle reservation charging control method and system can avoid the charging peak period and rationally utilize power grid resources.

The invention discloses an inductive wireless charging system capable of changing the secondary structure and parameters. According to the invention, a constant-current constant-voltage switching circuit I and a constant-current constant-voltage switching circuit II are arranged in a receiving portion, a secondary constant-voltage compensation capacitor is connected with a change-over switch I in series, and a control end of the change-over switch I is connected with a controller I; the constant-current constant-voltage switching circuit II is formed by connecting a secondary constant-current compensation capacitor and a change-over switch II in series, and a control end of the change-over switch II is connected with the controller I. The invention further discloses a second implementation scheme which is slight different from the scheme at the control end. The inductive wireless charging system with the structure disclosed by the invention not only can output constant current, but also can output constant voltage, thereby being applicable to charging a battery, especially being applicable to charging multiple loads under a single power supply; The inductive wireless charging system is convenient to control, stable in operation, simple in structure, low in requirement for the capacity of an inverter and low in manufacturing cost, the input impedance is purely resistive in the whole process, input of reactive power can be avoided, and the system efficiency can be improved.

A charging arrangement for a vehicle includes: a charge receiving connector secured to the roof of a vehicle at a fixed height from the roof of the vehicle, the charge receiving connector including at least three elongate charge receiving conductors longitudinal axes of the charge receiving conductors being disposed substantially along the same line; and a charging gantry including at least three charging conductors, the charging conductors being vertically movable between a raised position in which the charging conductors are clear of the vehicle when the vehicle is under the charging gantry, and a lowered position in which the charging conductors make contact with the charge receiving conductors on the roof of the vehicle.

The invention provides an electric vehicle charging system for an indoor parking lot and a control method of the electric vehicle charging system. The system comprises a track which is installed at the top of the indoor parking lot, a server used for acquiring vehicle information of a to-be-charged electric vehicle according to a charging instruction sent by a user, at least one charging robot used for moving to an area where the to-be-charged electric vehicle is located through the track according to the vehicle information and controlling a charging gun to be inserted into a charging port ofthe electric vehicle to charge the electric vehicle, and at least one mobile power supply used for moving to the area where the to-be-charged electric vehicle is located through the track according to the vehicle information to provide electric energy; the server is also used for controlling the mobile power supply to be electrically connected with the charging robot. A charging pile does not need to be installed on the ground, so that the user does not need to find the position of the charging pile; the charging robot can automatically move to the vehicle to charge the vehicle, so that a parking area is saved; the utilization rate of charging equipment is increased; the charging cost is reduced; and intelligent charging of the electric vehicle is achieved.

The invention discloses an electric vehicle charging method based on automatic demand response and real-time electricity price, which comprises the following steps in sequence: collecting battery capacity, charging power, charging efficiency, current battery storage capacity, and time-sharing electricity price data of an electric vehicle, and setting charging demand adjustment threshold; buildinga load demand value model of electric vehicle at the moment of i; performing independent charging based on the built load demand value model by the electric vehicle. Compared with the prior art, the electric vehicle charging method based on the automatic demand response and the real-time electricity price can significantly reduce the charging cost, and is of great significance for peak clipping, valley filling and power grid operation optimization.

The invention relates to a control terminal, embedded main board and parking system and method. The control system comprises a microprocessor and a radio frequency receiver which is connected with the microprocessor in a communication mode and / or an image acquisition device for obtaining a radio frequency signal or an image, the control system further comprises a communication unit which is connected with the microprocessor in a communication mode, the communication unit sends the radio frequency signal and the image obtained by the radio frequency receiver and / or the image acquisition device to an embedded main board which is connected with the radio frequency receiver and / or the image acquisition device, a signal conversion circuit in the embedded board analyzes the radio frequency signal and the image to obtain the corresponding license plate number information and time information, a communication circuit sends the obtained license plate number information and the time information to a default server to facilitate a server to deduct on the parking fee according to the obtained license plate number information and the obtaining time of the license plate number information, so that automatic deducting of the vehicle parking fee is achieved, and parking charging cost is saved and parking charging efficiency is improved.