The invention discloses a manual and automatic integrated charging pile which comprises a charging pile body, a rotary disc, a controller, an RFID module used for identifying the type of a vehicle anda locating and distance measurement module used for identifying the position of a charging interface of the vehicle. The charging pile body comprises a support, a three-shaft cantilever mechanical hand, an automatic charging gun, a manual charging gun and a power system used for providing electric energy, wherein the three-shaft cantilever mechanical hand is fixed to the support, the manual charging gun is fixed to the side face of the support, the automatic charging gun is fixed to the three-shaft cantilever mechanical hand, the rotary disc is located right in front of the support, the output end of the RFID module and the output end of the locating and distance measurement module are connected with the input end of the controller, the output end of the controller is connected with the control end of the rotary disc and the control end of the three-shaft cantilever mechanical hand, and the charging pile can manually and automatically charge an automobile.

Manual and automatic integrated charging pile

The invention relates to an estimation method for peak power of power batteries based on a two-step on-line intelligent optimization algorithm. The method comprises the steps that on the basis of a first step intelligent optimization algorithm type, a first optimization variable value which maximizes a first optimization objective function J1 is found in a first optimization variable boundary, and a J1 value corresponding to the first optimization variable value is obtained as the maximum discharge power of the power batteries at the next time; on the basis of a second step intelligent optimization algorithm type, a second optimization variable value which minimizes a second optimization objective function J2 is found in a second optimization variable boundary, and a J2 value corresponding to the second optimization variable value is obtained as the minimum discharge power of the power batteries at the next time; according to the estimation method for the peak power of the power batteries based on the two-step intelligent optimization algorithm, the two-step on-line intelligent optimization algorithm is introduced to calculate the maximum discharge power and the minimum charge power respectively, and the method is simple in steps, strong in applicability and easy to implement on line.

Estimation method for peak power of power batteries based on two-step on-line intelligent optimization algorithm

The embodiment of the invention discloses a vehicle-mounted fuel cell hybrid power system designing method. The method comprises the steps of obtaining tramcar line designing parameters, vehicle design parameters, running index parameters, fuel cell parameters, monomer power battery parameters and super capacitor module parameters; calculating needed power and needed energy of a hybrid power system under a dynamic cycle running condition according to the parameters; inputting the parameters, the needed power and the needed energy into a fuel cell hybrid power system design optimization model;solving a Pareto non-dominated solution set of control variables of the fuel cell hybrid power system design optimization model; constituting a Pareto leading edge according to the Pareto non-dominated solution set and target function values corresponding to the Pareto non-dominated solution set. In this way, a reference design scheme for designing the fuel cell hybrid power system which meets user requirements is provided for design personnel. The embodiment of the invention further discloses a vehicle-mounted fuel cell hybrid power system designing device.

Vehicle-mounted fuel cell hybrid power system designing method and device

The invention discloses a virtual inductor and virtual capacitor power distribution method of a three-port converter, and relates to a technology of distributing the power of a three-port converter which accesses a direct current micro power grid, for realizing reasonable distribution of the power for a hybrid energy storage system which accesses the direct current micro power grid through the three-port converter. The virtual inductor and virtual capacitor power distribution method of a three-port converter is characterized in that in an energy storage unit, when the voltage of a direct current bus is stable, the real-time current feedback values at the low voltage side of the three-port converter are used to form a virtual inductor and a virtual capacitor; after the virtual capacitor iscombined with sagging control, after constant voltage control, the virtual capacitor is combined with super capacitor voltage recovery control again to become the other input terminal of phase shift control; and the output terminal of phase shift control respectively acts on a switch tube Q1 to a switch tube Q12 in the three-port converter, so as to achieve reasonable distribution of hybrid energystorage power. The virtual inductor and virtual capacitor power distribution method of a three-port converter has the advantages of realizing reasonable distribution of power, and being suitable fora direct current hybrid energy storage system.

Virtual inductor and virtual capacitor power distribution method of three-port converter

The invention provides an electric vehicle bidirectional charging discharging system design method. The electric vehicle bidirectional charging discharging system design method comprises steps that S1, an electric vehicle charging discharging model constituted by a line side power supply, a PWM rectifier, a DC-DC converter, and a storage battery is established; the PWM rectifier adopts a three-phase PWM rectifier; S2, a valuing range of a main circuit parameter is determined; the main circuit parameter comprises an AC side inductive parameter and a DC side capacitive parameter; S3, a three-phase PWM rectifier control strategy is set, and theoretical analysis of harmonic characteristics is carried out; S4, a simulation model is established, and the charging discharging system is analyzed, compared, and verified in a simulated way. The electric vehicle bidirectional charging discharging system design method is advantageous in that the three-phase PWM rectifier is used for rectification and inversion, and then network access requirements are satisfied by corresponding current and corresponding voltage without requiring harmonic suppression measures.

Electric vehicle bidirectional charging discharging system design method

The invention discloses a multi-objective optimization based parameter matching method for a power system of a battery electric vehicle. The method includes: establishing a parameter matching optimization module by taking multiple vehicle performance indexes including a maximum speed, an acceleration time, 100km power consumption and the like as optimization objectives and taking a transmission ratio as an optimization variable; taking most fundamental performance indexes of a type of the vehicle as constraint conditions to obtain a feasible region of the transmission ratio, and adopting a multi-objective genetic algorithm for solving optimization problems in the feasible region; working out Pareto optimal solution sets under the conditions of fixed-transmission-ratio transmissions and two-gear transmissions, and taking the Pareto optimal solution sets as alternative sets; comprehensively comparing the alternative sets of the different motors to determine a final parameter matching scheme for sample vehicle development.

Multi-objective optimization based parameter matching method for power system of battery electric vehicle

The utility model discloses an electric automobile's compound energy memory, including detecting the control unit, PWM rectifier, direct current energy storage module and unsteady flow energy storage module. Unsteady flow energy storage module includes DCDC transform module and energy storage battery, and direct current energy storage module is super capacitor. Adopt establish ties respectively two -way DCDC converter and meet the system architecture of dc bus of energy storage battery and super capacitor, improve and fill discharge efficiency to furthest exerts the characteristic of super capacitor and battery, realizes the maximize of compound energy storage advantage. Super capacitor adopts the measure of flow equalizing with the battery. When the discharging or charge power and surpass it and discharge the most greatly or when charging the power limit value of an energy storage equipment, make it discharge or the power charge -discharge of charging according to the biggest, another kind of energy storage equipment decides according to its self the residual capacity condition and whether additionally compensates out -of -limit partial power.

Be applied to electric automobile's compound energy memory

The invention discloses a payment system for an electric car charging pile. The payment system is characterized by comprising the processes as follows: electric energy is fed to an on-board charger by a public supply network through an electric energy metering module and a main contactor in sequence; electric energy metering information is fed to a main control module by the electric energy metering module; the main control module controls on/off of the main contactor; the main control module is connected to a human-computer interaction module, a network payment module and a card reader for payment management respectively, so that various payment requirements of users are met. By the structure and the method, the payment system has the advantages that (1) inconvenience caused by a single cash payment mode is avoided; (2) the user of an electric car can have a plurality of selective payment modes; (3) unlimited charging of the electric car at different places is achieved, and the battery lifetime of the electric car is prolonged; (4) the adopted network payment is time-saving and simple.

Payment system for electric car charging pile

The utility model discloses an electric automobile fills electric pile system, three -phase?alternating?current carry to the charging plug through three -phase half -bridge voltage type PWM rectifier and two -way DCDC converter, the charging plug is used for connecting electric automobile's the interface that charges, the output two -stage of two -way DCDC converter is equipped with control switch S1 and control switch S2 respectively, control switch S1 and control switch S2 are switched module output PWM signal control control switch S1 and control switch S2's break -make by the charge -discharge, the input of three -phase half -bridge voltage type PWM rectifier is equipped with AD sampling circuit to carry sampled signal to PLL phase -locked loop the control unit, PLL phase -locked loop the control unit regulations of output signal to three -phase half -bridge voltage type PWM rectifier. The utility model has the advantages of the steady -state performance is good, dynamic response is fast, can realize between electric automobile and the electric wire netting two -way alternate of energy and information.

Electric automobile fills electric pile system

The utility model discloses an electric automobile drives integrated device that charges, including high -voltage battery bank module, two -way DCDC transform module, contravariant bridge A module, contravariant bridge B module, the control unit module, 220380V charge module and motor, the flexibility of two dc -to -ac converters controls that motor winding equivalent inductance's system topological structure itself provided, the messenger has good drive properties under different work condition, and cooperative control can obtain bigger power. Can insert one -way alternating current of 220VAC or 380VAC three -phase alternating current realizes charging to on -vehicle high -voltage battery bank's miniwatt and high -power.

Liu Haohao

Papers

Multi-objective optimization based parameter matching method for power system of battery electric vehicle

Be applied to electric automobile's compound energy memory

Payment system for electric car charging pile

Electric automobile fills electric pile system

Electric automobile drives integrated device that charges