CN101834455B - Electric vehicle charging station system and matching charging method thereof - Google Patents

Abstract

The present invention provides an electric vehicle charging station system and a matching charging method thereof, wherein the charging station system comprises: a vehicle parking area for parking electric vehicles whose batteries are to be replaced; a battery replacement unit for replacing the batteries of electric vehicles through battery replacement equipment; a battery storage unit for storing and charging the batteries; a charging unit for charging the batteries on the battery storage unit; a low-voltage power distribution unit for supplying power to the charging unit area; and a high-voltage power distribution unit for converting input high-voltage power into low-voltage power. The electric vehicle charging station system provided by the present invention has the characteristics of reasonable layout and novel structure, can realize fast charging, provide charging efficiency, and can simultaneously replace batteries and charge multiple electric vehicles, and has the advantages of high economic level and stable operation at a relatively low cost.

Description

Electric automobile charging station system and coupling charging method thereof

Technical field

The present invention relates to a kind of charging station system of electric automobile and the coupling charging method of giving charging electric vehicle thereof.More particularly; The present invention relates to a kind of through changing topological structure and the charging matching process that battery is the charging station system of electric automobile makeup energy; Just carry out the charging station system of a kind of novelty that structural rearrangement obtains, the invention still further relates to a kind of method of using said charging station system to give vehicle charging through each component units to the electrically-charging equipment of accumulator of electric car.

Background technology

Electric automobile receives the very big concern of countries in the world government and car manufactures as cleaning, environment-friendly vehicle.With pure electric automobile, hybrid vehicle, fuel cell car is the important vehicles that the electric automobile of representative will become 21 century.Wherein, pure electric automobile has experienced the development in longer stage, and technology is ripe day by day, and relevant technology and standards system are perfect, and have obtained business-like promotion and application in countries and regions such as U.S.A, day, Europe.Particularly in the special bus of municipal administration, public affair fleet with car, fixed line with car and private car field, pure electric automobile has obtained very great development.

Relate to for ease and use, present most electric automobiles adopt power accumulators as main power supply.The battery pack that the mode that power accumulator is the polylith battery cell through series, parallel or connection in series-parallel combination constitutes, and comprise following one or more parts: the battery case, corresponding battery management system, other auxiliary systems and the parts that install and fix battery.

Briefly, the charging modes of electric automobile is generally: rely on ground charging station or on-board charging system under the situation of vehicle lay-off, battery to be charged.As the extension of vehicle-mounted stopping for charging mode, the double source trolley bus that use some areas adopts online charging modes charging, promptly in the vehicle operating process, adopts accumulator electric-quantity to go when utilizing the trolley bus bow net to prepare against off-grid for the Vehicular accumulator cell charging.For the stopping for charging mode, the vehicle power battery charge time is long, the vehicle utilance is low, it is inconvenient to use.Therefore now usually adopting the method for changing power accumulator is that electric automobile provides power endlessly, promptly takes out the electrokinetic cell that uses up from electric automobile, then the charged electrokinetic cell electric automobile of packing into.

In order to satisfy the needs of changing battery and charging, need to set up the charging station system that changes battery and the electrokinetic cell that changes is charged to electric automobile, such system is most important for whole operation.But, still there are not ripe arrangement, design specification and standard at present for such charging station system.

Summary of the invention

According to an aspect of the present invention, the invention provides a kind of charging station system of electric automobile, said charging station system comprises:

The vehicle parking district is used to park the electric automobile of battery to be replaced;

The battery altering unit is used for the battery through battery altering equipment replacement electric automobile;

Battery storage unit is used to deposit battery and battery is charged;

Charhing unit is used for the battery on the said battery storage unit is charged;

Low-voltage distribution unit is used to the power supply of said charhing unit district;

The high voltage power distribution unit is used for converting the high-tension electricity of input into low-voltage power;

Wherein, be provided with said battery altering unit, battery storage unit, charhing unit and low-voltage distribution unit to bilateral symmetry in said vehicle parking district, the arranged outside of the said low-voltage distribution unit of a side has said high voltage power distribution unit therein.

Preferably, said charging station system is a plane formula charging station system, and wherein, said vehicle parking district, battery altering unit, battery storage unit, charhing unit, low-voltage distribution unit and the setting of high voltage power distribution unit are on the ground.

Preferably; Said charging station system is a three-dimensional charging station system; Wherein, Said vehicle parking district is provided with on the ground, and said battery storage unit, charhing unit, low-voltage distribution unit and high voltage power distribution unit are arranged on subsurface, and said battery altering unit is provided with on the ground and subsurface simultaneously.

Preferably, said battery altering equipment is to change robot automatically.

Preferably, said charhing unit charges to battery through the mode of trench wiring.

Preferably, said charging station system also comprises battery maintenance unit, monitoring office unit and fire protection equipment unit.

Preferably, the design parameter of said charging station system comprises the quantity N that changes operating personnel _c, reserve battery number N _Bat, charhing unit quantity N _Cdj, serve train number N every day at most _QsBut, maximum service vehicle number N _Cs, distribution capacity P; Said design parameter is confirmed through following matching method by the basic parameter of charging station system:

Change operating personnel's quantity N _cN _c=N _g* N _t

The number N of reserve battery _Bat $N_{\mathrm{Bat}}=\frac{T_{\mathrm{Ch}}\×N_t}{T_{\mathrm{Ex}}}\×C_b$

Charhing unit quantity N _CdjN _Cdj=N _Bat* N _d

Every day is service train number N at most _Qs $N_{\mathrm{Qs}}=\frac{T_{\mathrm{Qt}}\×N_t}{T_{\mathrm{Ex}}}\×\frac{1}{C_c}$

But maximum service vehicle number N _Cs $N_{\mathrm{Cs}}=\frac{N_{\mathrm{Qs}}}{N_{\mathrm{Gh}}}$

Distribution capacity P

Wherein: said basic parameter comprises changes operating personnel N _g, change vehicle number N simultaneously _t, charging interval T _Cb, change time T _Ex, reserve battery reserve factor C _b, service time T _Qt, link such as front and back vehicle influence reserve factor C _c, each car changes the battery times N every day _Gh, the charhing unit quantity N that needs of every Battery pack _d, separate unit charhing unit power P _d, charhing unit charge efficiency η, charhing unit power factor

Charhing unit is usage factor C simultaneously _t

According to another aspect of the present invention, the invention provides a kind of charging matching process that uses said charging station system that electric automobile is charged, said matching process comprises:

The electric automobile of battery to be replaced is parked at the correct position in vehicle parking district, and gathers the basic parameter of charging station system and the design parameter of definite charging station system;

Said basic parameter and design parameter are transferred to the system controller terminal, and send the information and instruction to the terminal of corresponding controllers separately of low-voltage distribution unit, charhing unit, battery storage unit, vehicle parking district, battery maintenance unit, monitoring office unit, battery altering unit, fire protection equipment unit and high voltage power distribution unit by the system controller terminal;

The battery altering equipment that to wait for the battery altering unit of both sides according to said information and instruction takes out the battery to be replaced on the electric automobile; Be put on the battery carrier of battery storage unit, and take off the battery that is full of electricity, be installed on the electric automobile; Accomplish whole replacing operation, electric automobile rolls away from; With

Battery on the battery carrier of battery storage unit is charged through charhing unit and store according to said information and instruction.

Preferably, said coupling charging method is changed the operation of battery simultaneously to many electric automobiles.

The charging station system of electric automobile provided by the present invention has characteristics rationally distributed, novel structure; The operation that can realize quick charge, charge efficiency is provided, also the while can be changed battery and charging to many electric automobiles has the advantage of high economy level and stable operation under lower cost.

Description of drawings

Fig. 1 is the structural representation according to plane formula charging station of the present invention system;

Fig. 2 is the structural representation according to three-dimensional charging station of the present invention system;

Fig. 3 is the floor map according to an embodiment of the charging station system of electric automobile of the present invention.

Description of reference numerals:

Low-voltage distribution unit 1, charhing unit 2, battery storage unit 3, vehicle parking district 4, battery maintenance unit 5, monitoring office unit 6, battery altering unit 7, fire protection equipment unit 8, high voltage power distribution unit 9, lift facility 10, change robot 11 automatically.

Embodiment

For making your auditor can further understand structure of the present invention, characteristic and other purposes, combine appended preferred embodiment to specify as follows at present, illustrated preferred embodiment only is used to technical scheme of the present invention is described, and non-limiting the present invention.

As depicted in figs. 1 and 2, Fig. 1 is the structural representation according to plane formula charging station of the present invention system, and Fig. 2 is the structural representation according to three-dimensional charging station of the present invention system.Can be found out that by Fig. 1 and Fig. 2 the charging station system of electric automobile of the present invention is to change batteries of electric automobile and to be core to the workshop that the battery that changes charges, internal placement is taked the mode of symmetric arrangement, to make full use of the space.

When the charging station system of electric automobile of the present invention is plane formula charging station system; Vehicle parking district 4 is positioned at workshop central authorities; Battery altering unit 7, battery storage unit 3, charhing unit 2 and low-voltage distribution unit 1 are set to its bilateral symmetry, and the arranged outside high voltage power distribution unit 9 of the low-voltage distribution unit 1 of a side therein.

In addition, according to the actual conditions in place, this charging station system can also comprise battery maintenance unit 5, monitoring office unit 6 and fire protection equipment unit 8.Battery maintenance unit 5, monitoring office unit 6 and fire protection equipment unit 8 are distributed in the corner in workshop or the rear of charhing unit 2 usually.(owing to detect signals such as voltage, electric current through checkout gear is well known in the art to signals such as the voltage of the battery on charhing unit 2 and the battery storage unit 3, electric current, SOC; So will omit their detailed description here), be delivered to through modes such as Can buses on the monitor supervision platform of monitoring office unit 6.The part in outside, workshop, next-door neighbour workshop is furnished with fire protection equipment unit 8, like the sand pit.

Below with the function of each unit of general description.

Low-voltage distribution unit 1 and the high voltage power distribution unit 9 common controller switching equipments of forming, but realize that charging station provides the conversion of the high-tension electricity of outer input to the charging device power application.Wherein, low-voltage distribution unit 1 is used for electric power to charhing unit 2 being provided, and high voltage power distribution unit 9 is used for converting the high-tension electricity of input into low-voltage power.

Charhing unit 2: (mode that for example connects up through trench) is used to charge the battery; Realize the supply of electrokinetic cell electric energy; Can comprise charging platform, charging zone and charging station supervisory control system network interface etc.; Because these parts all are well known in the art, therefore will omit detailed description here to them, and not shown.

Battery storage unit 3: the slack storage space, promptly be used to the place of depositing battery and battery being charged, operated by rotary motion battery storage frame carries out the battery stereo-parking.

Vehicle parking district 4: comprise runway and parking stall, the parking demand when satisfying motor vehicle replacing battery and charging guarantees the continual and steady operation of changing.Wherein, charging station is exported to rare two tracks from entering the mouth to, and the entrance and exit branch is arranged, and carries out sign.

Battery maintenance unit 5: be to be used for the battery zone of the work such as emergency processing of combo, battery pack balancing, the test of battery pack actual capacity, battery failures again.

Monitoring office unit 6: it is connected with each component units through known mode, is used to monitor the ruuning situation of whole charging station system, comprises electric power system operation monitoring, charhing unit operation monitoring, the monitoring of charging station system safety etc.

Battery altering unit 7: realize the functional areas of vehicle power battery altering operation, general robot apparatus (like robot etc.) through being equipped with takes out the battery to be replaced on the vehicle, is put on the battery storage unit 3.

In addition; Also include electric power system according to charging station of the present invention system; Be used to guarantee the need for electricity of auxiliary equipment such as charging station battery charge, battery management and illumination, and the harmonic pollution of charhing unit is controlled and handled, guarantee the stable operation of charging station.

Charging station of the present invention system can also be a three-dimensional charging station system, and Fig. 2 is the structural representation according to three-dimensional charging station of the present invention system.Can be found out that by Fig. 2 vehicle parking district 4 is provided with on the ground, battery storage unit 3, charhing unit 2, low-voltage distribution unit 1 and high voltage power distribution unit 9 are arranged on subsurface, and battery altering unit 7 is provided with on the ground and subsurface simultaneously.Wherein, be arranged on the both sides that ground battery altering unit 7 is arranged on vehicle parking district 4 symmetrically, be arranged on underground battery altering unit 7 bilateral symmetry be provided with battery storage unit 3, charhing unit 2 and low-voltage distribution unit 1.Because most of component units of this charging station system is positioned at subsurface, therefore can the more efficient use space, reduce and take up an area of.For three-dimensional charging station system, can also arrange lift facility 10 in place.

To combine Fig. 3 to specify below according to the charging station system of a specific embodiment of the present invention and the coupling charging method of using this charging station system that electric automobile is charged; Wherein, Fig. 3 is the floor map according to an embodiment of the charging station system of electric automobile of the present invention.

Battery is changed and the workshop of charging is a core being used for according to the charging station system of this embodiment, internal placement is taked the mode of symmetrical structure, floor plan.Battery on the battery carrier charges through charging mechanism 2, and signals such as the voltage of charging mechanism 2 and battery, electric current, SOC are delivered to the monitor supervision platform of monitoring office unit 6 through modes such as Can buses, realize the monitoring to whole charging process.The monitoring office unit 6 of this charging station system is arranged in the outside in next-door neighbour workshop.Battery maintenance unit 5 is arranged in two corners of workshop one end.This charging station has perfect fire protection equipment, and promptly the fire protection equipment unit 8, comprising the fire-fighting sand pit.High voltage supply unit 9 is arranged in the outside between charging vehicle.

The coupling charging method that electric automobile is charged provided by the invention comprises as follows: the electric automobile of battery at first to be replaced is parked at the correct position in vehicle parking district, and gathers the basic parameter of charging station system and confirm that the design parameter (for example changing robot 11 automatically) of charging station system carries out the battery altering operation for it.Then; Said basic parameter and design parameter are transferred to the system controller terminal, and send the information and instruction to the terminal of corresponding controllers separately of low-voltage distribution unit, charhing unit, battery storage unit, vehicle parking district, battery maintenance unit, monitoring office unit, battery altering unit, fire protection equipment unit and high voltage power distribution unit by the system controller terminal.Then; The battery altering equipment that to wait for the battery altering unit of both sides according to said information and instruction takes out the battery to be replaced on the electric automobile; Be put on the battery carrier of battery storage unit, and take off the battery that is full of electricity, be installed on the electric automobile; Accomplish whole replacing operation, electric automobile rolls away from.At last, according to said information and instruction the battery on the battery carrier of battery storage unit is charged through charhing unit and store.

Explanation is mated calculating to the quantity of the number of the replacing operating personnel's of charging station system quantity, reserve battery, charhing unit, service ability, distribution capacity etc. below.Use this computational methods can optimize the resource allocation of the charging station system of electric automobile, improve the economy level of charging station system, guarantee the stable operation of charging station system under the lower cost situation.Charging station system design parameters coupling computational methods are following:

1, basic design parameters:

The replacing operating personnel quantity N that per car needs _g

Change vehicle number N simultaneously _t

The charging interval T of battery _Ch

Per car is changed the activity duration T of battery _Ex

Reserve battery reserve factor C _b

T service time of charging station _Qt

The reserve factor C of links such as front and back vehicle influence _c

Each car is changed the battery times N every day _Gh

The charging zone quantity N that every Battery pack needs _d

Separate unit charging zone power P _d

The charge efficiency η of charging zone

The power factor of charging zone

Charging zone is usage factor C simultaneously _t

2, the calculating of charging station system capital equipment scale, service ability and distribution capacity.Mainly comprise definite: change operating personnel's quantity, the number of reserve battery, the quantity of charhing unit, the service ability and the distribution capacity of charging station system.According to the basic parameter of having confirmed, confirm capital equipment scale, service ability and the distribution capacity of charging station through following computing formula.

Change operating personnel's quantity N _c=N _g* N _t

The number of reserve battery $N_{\mathrm{Bat}}=\frac{T_{\mathrm{Ch}}\×N_t}{T_{\mathrm{Ex}}}\×C_b$

Charging zone quantity N _Cdj=N _Bat* N _d

Every day is the service train number at most $N_{\mathrm{Qs}}=\frac{T_{\mathrm{Qt}}\×N_t}{T_{\mathrm{Ex}}}\×\frac{1}{C_c}$

But maximum service vehicle number $N_{\mathrm{Cs}}=\frac{N_{\mathrm{Qs}}}{N_{\mathrm{Gh}}}$

The computing formula of distribution capacity is

Provide the instance of this charging station system design parameters coupling computational methods below:

(1) battery altering pattern

Substitute mode is the robot quick replacing modes of automation, and the vehicle of battery to be changed gets into the battery altering workshop, takes off the battery to be charged on the vehicle by robot earlier, takes off the battery that has been full of from charging rack again and is assembled on the vehicle.Finish changing the vehicle of battery and leave the battery altering workshop, get into the marshalling of dispatching a car, the wait next round is dispatched a car.The battery of changing on the charging rack is charged by charhing unit.

For instance, adopt binary channels, change the scheme of the battery of 4 cars simultaneously according to the charging station system of this embodiment of the invention.Below will be as example explanation computational methods according to the match parameter of charging station of the present invention system.

(2) basic design parameters

The number of entry

Change operating personnel N _g4 people/

Change vehicle number N simultaneously _t4

Charging interval T _Ch3 hours

Change time T _Ex12 minutes/

Reserve battery reserve factor C _b1.2

Service time T _Qt18h

The reserve factor C of links such as front and back vehicle influence _c1.2

Each car is changed the battery times N every day _Gh2 times

The charhing unit quantity N that every Battery pack needs _d7

Separate unit charhing unit power P _d9kW

Charhing unit charge efficiency η 0.9

The power factor of charhing unit

0.85

Charhing unit is usage factor C simultaneously _t0.8

(3) charging station capital equipment scale

Change personnel amount (people) N _c=N _g* N _t=4 * 4=16

Reserve battery number (group) $N_{\mathrm{Bat}}=\frac{T_{\mathrm{Ch}}\×N_t}{T_{\mathrm{Ex}}}\×C_b=\frac{3\×60\×4}{12}\×1.2=72$

Charhing unit quantity (platform) N _Cdj=N _Bat* N _d=72 * 7=504

(4) charging station service ability

Every day is service train number (inferior) at most $N_{\mathrm{Qs}}=\frac{T_{\mathrm{Qt}}\×N_t}{T_{\mathrm{Ex}}}\×C_c=\frac{18\×60\×4}{12}\×\frac{1}{1.2}=300$

But maximum service vehicle number () $N_{\mathrm{Cs}}=\frac{N_{\mathrm{Qs}}}{N_{\mathrm{Gh}}}=\frac{300}{2}=150$

(5) distribution capacity

The power of charger is the 9kW/ platform in the charhing unit, and every Battery pack need charge with 7 chargers.According to the experimental data of this charging station, get charhing unit charge efficiency η=0.9, power factor

Charhing unit is usage factor C simultaneously _t=0.8, distribution capacity is:

(6) main design parameters gathers

The number of entry

Change simultaneously ability () 4

Change personnel amount (people) 16

Battery backup number (group) 72

Charhing unit number (platform) 504

Maximum replaceable battery number of times every day (inferior) 300

But every day maximum service vehicle number () 150

Distribution capacity (kVA) 4744

The charging station system of electric automobile provided by the present invention has characteristics rationally distributed, novel structure; The operation that can realize quick charge, charge efficiency is provided, also the while can be changed battery and charging to many electric automobiles has the advantage of high economy level and stable operation under lower cost.

What need statement is that foregoing invention content and embodiment are intended to prove the practical application of technical scheme provided by the present invention, should not be construed as the qualification to protection range of the present invention.Those skilled in the art are in spirit of the present invention and principle, when doing various modifications, being equal to replacement or improvement.Protection scope of the present invention is as the criterion with appended claims.

Claims (9)

1. A charging station system for electric vehicles, characterized in that the charging station system comprises: Vehicle parking area for electric vehicles whose batteries are to be replaced; A battery replacement unit for replacing the battery of an electric vehicle by means of a battery replacement device; The battery storage unit is used for storing and charging the battery; a charging unit, configured to charge the battery on the battery storage unit; a low-voltage power distribution unit for supplying power to the charging unit; The high-voltage power distribution unit is used to convert the input high-voltage power into low-voltage power. The low-voltage power distribution unit and the high-voltage power distribution unit together form power distribution equipment, so that the charging station can provide externally input high-voltage power to the charging equipment. conversion of electricity; Wherein, the battery replacement unit, the battery storage unit, the charging unit and the low-voltage power distribution unit are symmetrically arranged on each side of the two sides of the vehicle parking area, and the low-voltage power distribution unit on one side is arranged outside There is the high-voltage power distribution unit; Among them, the design parameters of the charging station system include the number of replacement operators N _c , the number of backup batteries N _bat , the number of charging units N _cdj , the maximum number of service vehicles per day N _qs , the maximum number of serviceable vehicles N _cs , and power distribution capacity P; the design parameters are determined by the basic parameters of the charging station system through the following matching method: Number of replacement operators N _c N _c = N _g × N _t Number of backup batteries N _bat $N_{\mathrm{bat}}=\frac{T_{\mathrm{ch}}\×N_t}{T_{\mathrm{ex}}}\×C_b$ Number of charging units N _cdj N _cdj = N _bat × N _d The maximum number of service trains per day N _qs $N_{\mathrm{qs}}=\frac{T_{\mathrm{qt}}\×N_t}{T_{\mathrm{ex}}}\×\frac{1}{C_c}$ Maximum number of serviceable vehicles N _cs $N_{\mathrm{cs}}=\frac{N_{\mathrm{qs}}}{N_{\mathrm{gh}}}$ Distribution capacity P Wherein: the basic parameters include the number N _g of replacement operators required for each vehicle, the number of vehicles N _t to be replaced at the same time, the charging time of the battery T _ch , the replacement time T _ex , the spare battery reserve coefficient C _b , and the service time of the charging station T _qt , the reserve coefficient C _c of the impact of front and rear vehicles, the number of battery replacements per vehicle per day N _gh , the number of charging units N _d required for each battery pack, the power of a single charging unit P _d , the charging efficiency of a charging unit η, the charging unit power factor

The charging unit simultaneously utilizes the coefficient C _t . 2. The charging station system according to claim 1, wherein the charging station system is a planar charging station system, wherein the vehicle parking area, battery replacement unit, battery storage unit, charging unit, low-voltage distribution The electric unit and the high-voltage power distribution unit are arranged on the ground. 3. The charging station system according to claim 1, wherein the charging station system is a three-dimensional charging station system, wherein the vehicle parking area is set on the ground, and the battery storage unit, charging unit, The low-voltage power distribution unit and the high-voltage power distribution unit are arranged under the ground, and the battery replacement unit is arranged on the ground and under the ground at the same time. 4. The charging station system according to claim 1, wherein the battery replacement device is an automatic replacement robot. 5. The charging station system according to claim 1, wherein the charging unit charges the battery through trench wiring. 6. The charging station system according to any one of claims 1-5, characterized in that the charging station system further comprises a battery maintenance unit, a monitoring office unit and a firefighting facility unit. 7. A charging matching method for charging an electric vehicle using the charging station system according to any one of claims 1-6, the charging matching method comprising: The electric vehicle to be replaced is parked at a suitable location in the vehicle parking area, and the basic parameters of the charging station system are collected and the design parameters of the charging station system are determined; The basic parameters and design parameters are transmitted to the system controller terminal, and the system controller terminal supplies the low-voltage power distribution unit, the charging unit, the battery storage unit, the vehicle parking area, the battery maintenance unit, the monitoring office unit, the battery replacement unit, The corresponding controller terminals of the fire-fighting facility unit and the high-voltage power distribution unit send out information and instructions; According to the information and instructions, the battery replacement equipment waiting for the battery replacement units on both sides will take out the battery to be replaced on the electric vehicle, put it on the battery rack of the battery storage unit, and remove the fully charged battery, and install it in the electric vehicle on, the entire replacement operation is completed, and the electric vehicle drives out; and According to the information and instructions, the battery on the battery rack of the battery storage unit is charged and stored by the charging unit. 8. The charging matching method according to claim 7, characterized in that, the design parameters of the charging station system include the number N _c of replacement operators, the number N _bat of backup batteries, the number N _cdj of charging units, the maximum number of services per day The number of trains N _qs , the maximum number of serviceable vehicles N _cs , and the distribution capacity P; the design parameters are determined by the basic parameters of the charging station system through the following matching method: Number of replacement operators N _c N _c = N _g × N _t Number of backup batteries N _bat $N_{\mathrm{bat}}=\frac{T_{\mathrm{ch}}\×N_t}{T_{\mathrm{ex}}}\×C_b$ Number of charging units N _cdj N _cdj = N _bat × N _d The maximum number of service trains per day N _qs $N_{\mathrm{qs}}=\frac{T_{\mathrm{qt}}\×N_t}{T_{\mathrm{ex}}}\×\frac{1}{C_c}$ Maximum number of serviceable vehicles N _cs $N_{\mathrm{cs}}=\frac{N_{\mathrm{qs}}}{N_{\mathrm{gh}}}$ Distribution capacity P

Among them: the basic parameters include the number of replacement operators N _g required for each vehicle, the number of vehicles N _t to be replaced at the same time, the charging time of the battery T _ch , the replacement time T _ex , the spare battery reserve coefficient C _b , and the service time of the charging station T _qt , the reserve coefficient C _c of the impact of front and rear vehicles, the number of battery replacements per vehicle per day N _gh , the number of charging units N _d required for each battery pack, the power of a single charging unit P _d , the charging efficiency η of a charging unit, and the charging unit power factor

The charging unit simultaneously utilizes the coefficient C _t . 9. The charging matching method according to claim 7, characterized in that the charging matching method performs battery replacement operations on multiple electric vehicles at the same time.

Images