CN110739713A - intelligent energy storage charging integrated device and charging and discharging control method thereof - Google Patents

intelligent energy storage charging integrated device and charging and discharging control method thereof Download PDF

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Publication number
CN110739713A
CN110739713A CN201910922386.4A CN201910922386A CN110739713A CN 110739713 A CN110739713 A CN 110739713A CN 201910922386 A CN201910922386 A CN 201910922386A CN 110739713 A CN110739713 A CN 110739713A
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Prior art keywords
vehicle
module
power grid
charging pile
pack
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CN201910922386.4A
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CN110739713B (en
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汤平
熊刚
卢煜东
高辉辉
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Fujian Nebula Electronics Co Ltd
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Fujian Nebula Electronics Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention provides intelligent energy storage and charging integrated devices, which comprise a vehicle-mounted PACK module, a integrated charging pile, a load module, an internal power grid, an electric meter and an external power grid, wherein the vehicle-mounted PACK module is connected with the integrated charging pile, the external power grid is connected with the integrated charging pile through the electric meter, the external power grid is connected with the internal power grid through the electric meter, the internal power grid is connected with the integrated charging pile, and the internal power grid is connected with the load module.

Description

intelligent energy storage charging integrated device and charging and discharging control method thereof
Technical Field
The invention relates to the field of new energy, in particular to intelligent energy storage and charging integrated devices and a charging and discharging control method thereof.
Background
Along with the rapid development of new energy power battery automobiles, the health detection of the battery pack is more and more emphasized, because along with the loss of the battery, the health value of the battery pack is reduced, and the cruising ability is also reduced. As the vehicle-mounted BMS ages, the detected PACK parameter (i.e., the maximum capacity of the battery PACK) also has a deviation (for example, the power battery car is not enough but the vehicle-mounted BMS still displays the remaining power), and if the accurate PACK parameter cannot be obtained, the estimation error of the cruising ability of the power battery car is caused, and the use is affected; therefore, it is necessary to detect a PACK module on board (specifically, an electric vehicle with a discharge function or a PACK battery PACK) by a PACK detection apparatus.
At present, there have been a small part on the market to fill electric pile and possess style energy storage function, and along with the continuous development of technique, the function of the electric pile will be more and more filled to the style, also can be more and more harsher to the detection of battery package.
However, the prior art mainly has the following defects in concrete implementation:
1. the existing charging piles only have the charging function of a vehicle-mounted PACK module, but do not have the discharging function of the vehicle-mounted PACK module, so that electric quantity cannot be more reasonably distributed when an internal power grid is powered off;
2. the conventional PACK detection equipment and the charging pile are two independent equipment, and need to be separately deployed and independently operated, so that the equipment complexity and the cost investment are increased; meanwhile, PACK detection equipment directly discharges when detecting, which results in that the discharged electric quantity is lost, and the power grid is interfered, so that the quality of the power grid is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide intelligent energy storage and charging integrated devices and a charging and discharging control method thereof, and solve the problems that in the prior art, when an internal power grid is powered off, electric quantity cannot be more reasonably distributed, and electric quantity loss is caused by direct discharging of PACK detection equipment.
intelligent energy storage charging integrated devices, wherein each integrated device comprises a vehicle-mounted PACK module, a integrated charging pile, a load module, an internal power grid, an electric meter and an external power grid;
the vehicle-mounted PACK module is connected with the body type charging pile so as to discharge the body type charging pile through the vehicle-mounted PACK module or charge the vehicle-mounted PACK module through the body type charging pile;
the external power grid is connected with the type charging pile through the ammeter so as to detect power supply of the external power grid to an internal power grid through the type charging pile, the external power grid is connected with the internal power grid through the ammeter so as to supply power to the internal power grid through the external power grid, the internal power grid is connected with the type charging pile so as to charge the type charging pile through the internal power grid or discharge the internal power grid through the type charging pile, and the internal power grid is connected with the load module so as to supply power to the load module through the internal power grid.
, the body type charging pile comprises an MCU, a battery pack, a DC/DC conversion module, a second DC/DC conversion module and an AC/DC bidirectional conversion module;
the th DC/DC conversion module is connected with the vehicle-mounted PACK module to convert the current input and output of the vehicle-mounted PACK module through the th DC/DC conversion module;
the DC/DC conversion module is connected with the second DC/DC conversion module to transmit the direct current output by the battery PACK to the vehicle-mounted PACK module for charging through the second DC/DC conversion module or transmit the direct current output by the vehicle-mounted PACK module to the battery PACK for discharging through the DC/DC conversion module, the AC/DC bidirectional conversion module is connected with the DC/DC conversion module to convert the alternating current of the internal power grid into the direct current through the AC/DC bidirectional conversion module and charge the vehicle-mounted PACK module, and the second DC/DC conversion module is connected with the AC/DC bidirectional conversion module which is connected with the internal power grid to convert the direct current output by the battery PACK or the vehicle-mounted PACK module into the alternating current through the AC/DC bidirectional conversion module and discharge the alternating current to the internal power grid.
The invention is realized in such a way that charge-discharge control methods of intelligent energy storage charging integrated devices need to use the integrated devices, and the methods comprise the following steps:
performing initialization parameter configuration and related parameter setting on the integrated device;
the battery PACK of the type charging pile is matched with an internal power grid to charge the vehicle-mounted PACK module until the electric quantity of the vehicle-mounted PACK module is saturated, and the battery PACK of the type charging pile is matched with the vehicle-mounted PACK module to discharge to the internal power grid and supply power to the load module through the internal power grid.
, the method further comprises the steps of firstly charging the vehicle PACK module with electricity, then discharging the electricity of the vehicle PACK module to detect the vehicle PACK module, and then charging the vehicle PACK module with electricity.
, the performing initialization parameter configuration and related parameter setting on the integrated device specifically includes:
rated current I for configuring vehicle-mounted PACK module to allow dischargingset(ii) a Rated voltage V for configuring vehicle-mounted PACK module to allow dischargingsetThe battery pack of the type charging pile allows the percentage PC of the electric quantity of an internal power grid and the electric quantity of the internal load to be input in real timePThe critical point electric quantity percentage PC of the battery pack of the -type charging pile during peak configurationPeak(s)The critical point electric quantity percentage PC of the battery pack of the -type charging pile during valley section configurationGrain(ii) a Configuration of power protection percentage PC in power failure modeHealth-care product(ii) a Rated power P for configuring vehicle PACK module to allow dischargingset；
Setting type charging pile to allow current of output battery pack to be ICellOutSetting type charging pile to allow current I input into battery packCellInSetting type charging pile to allow power input into internal power grid to be P in real timePdischarge(ii) a Setting the voltage of the on-board PACK module to VpackSetting voltage of type charging pile battery pack as Vcell(ii) a Setting the power consumed by the internal power grid to PLoad(s)Setting the output power of type charging pile to Pcellout(ii) a Setting the input voltage of the external power grid to the internal power grid through the ammeter to be Vex(ii) a Setting the input current of an external power grid to an internal power grid through an ammeter to be Iex。
step by step, through style fill electric pile's group battery and internal electric network cooperation to the on-vehicle PACK module charges, until on-vehicle PACK module electric quantity saturation specifically does:
when the vehicle-mounted PACK is in the peak section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of the PC in real timePeak(s)And if so, controlling the type charging pile battery packThe vehicle-mounted PACK module is used for charging; if not, controlling the internal power grid to charge the vehicle-mounted PACK module;
when the vehicle-mounted PACK module is positioned in a power utilization valley section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of a PC (personal computer) in real timeGrainIf the type charging pile is used, the battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and if the charging pile is not used, the internal power grid is controlled to charge the vehicle-mounted PACK module.
, the battery PACK of the -type charging pile is matched with the vehicle-mounted PACK module to discharge to the internal power grid, and the internal power grid supplies power to the load module, specifically:
when the MCU of the body type charging pile detects that the external power grid stops supplying power to the internal power grid, if a body type charging pile battery pack power supply mode is set, discharging is carried out on the internal power grid only through the battery pack of the body type charging pile, and power is supplied to the load module through the internal power grid;
if set up to free power supply mode, then detect whether style fills electric pile and has a connection the on-vehicle PACK module, if have the connection the on-vehicle PACK module, then judge whether the electric quantity of on-vehicle PACK module is greater than PCHealth-care productIf the charging is not carried out, discharging is carried out to the internal power grid through the battery PACK of the type charging pile, and power is supplied to the load module through the internal power grid;
and if the vehicle-mounted PACK module is not connected, discharging to the internal power grid through the battery PACK of the type charging pile, and supplying power to the load module through the internal power grid.
, the vehicle PACK module is full of electric quantity, then the electric quantity of the vehicle PACK module is discharged, to the vehicle PACK module is detected, and then the electric quantity of the vehicle PACK module is full of electric quantity, which specifically comprises:
step A1, when the power consumption is in the peak section, if the electric quantity of the battery pack of the type charging pile is larger than that of the PCPeak(s)The battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and the electric quantity of the battery PACK of the type charging pile is less than or equal to that of a PCPeak(s)If the electric quantity of the vehicle-mounted PACK module is fully charged, the internal power grid is not started to charge; if the electric quantity of the vehicle-mounted PACK module is not fully charged, enabling the internal power grid to fully charge the electric quantity of the vehicle-mounted PACK module;
when the charging pile is in a valley section, if the power of the type charging pile battery pack is larger than that of the PCGrainThe battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and the electric quantity of the battery PACK of the type charging pile is less than or equal to that of a PCGrainIf the electric quantity of the vehicle-mounted PACK module is fully charged, the internal power grid is not started to charge; if the electric quantity of the vehicle-mounted PACK module is not fully charged, enabling the internal power grid to fully charge the electric quantity of the vehicle-mounted PACK module;
step A2, I for controlling the vehicle PACK modulesetThe style fill electric pile ICellInAnd I of the body type charging pileCellOutTo perform discharge, wherein PLoad(s)＝Iex*Vex+PPdischarge，PPdischarge＝PCP*PLoad(s)＝Pset+Pcellout，Pset＝Iset*Vpack，Pcellout＝ICellOut*VcellThe method specifically comprises the following steps:
when PC is usedP*PLoad(s)Greater than or equal to PsetAnd controlling the vehicle-mounted PACK module to discharge to the internal power grid, wherein the discharge current is Iset；
Meanwhile, when the charging pile is in a peak power consumption period, if the power of the type charging pile battery pack is larger than that of the PCPeak(s)Then control said The group battery of style stake of charging also discharges to inside electric wire netting, and the maximum current of allowing of discharging is ICellOut＝(PCP*PLoad(s)-Pset)/VcellAnd the electric quantity of the battery pack of the -style charging pile is less than or equal to PCPeak(s)When the type charging pile is positioned at a power consumption valley section, if the electric quantity of the battery pack of the type charging pile is larger than that of a PC (personal computer)GrainAnd controlling the type charging pile battery pack to discharge to an internal power grid, wherein the maximum discharge allowable current is ICellOut＝(PCP*PLoad(s)-Pset)/VcellAnd the electric quantity of the battery pack of the -style charging pile is less than or equal to PCGrainWhen the current is discharged, stopping discharging the battery pack of the body type charging pile;
when PC is usedP*PLoad(s)Less than PsetAnd detecting the electric quantity of the type charging pile battery PACK, controlling the vehicle-mounted PACK module to simultaneously discharge the internal power grid and the battery PACK if the electric quantity of the battery PACK is not saturated, and allowing the power P of the internal power grid to be input at the momentPdischarge＝PCP*PLoad(s)Allowing current I to be input to the battery packCellIn＝(Pset-PCP*PLoad(s))/VcellThe discharge current of the vehicle-mounted PACK module is Iset；
If the electric quantity of the battery PACK is saturated, controlling the vehicle-mounted PACK module to only discharge to the internal power grid, and allowing the power P input into the internal power gridPdischarge＝PCP*PLoad(s)The actual discharge current of the vehicle-mounted PACK module is PCP*PLoad(s)/Vset；
Step A3, judging whether the vehicle PACK module discharges all electric quantity, and if so, entering step A4; if not, go to step A2;
step A4, through style fill electric pile's group battery and internal electric network cooperation to the on-vehicle PACK module charges, until on-vehicle PACK module electric quantity saturation specifically includes:
when the vehicle-mounted PACK is in the peak section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of the PC in real timePeak(s)If the charging is positive, the battery PACK of the body type charging pile is controlled to charge the vehicle-mounted PACK module;
when the vehicle-mounted PACK module is positioned in a power utilization valley section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of a PC (personal computer) in real timeGrainIf the type charging pile is used, the battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and if the charging pile is not used, the internal power grid is controlled to charge the vehicle-mounted PACK module.
The invention has the following advantages:
1. by arranging the AC/DC bidirectional conversion module, the battery PACK of the type charging pile can be matched with the vehicle-mounted PACK module to discharge to the internal power grid, and the battery PACK of the type charging pile can be matched with the internal power grid to charge the vehicle-mounted PACK module, so that more reasonable distribution of electric quantity can be well realized, and the quality of an external power grid is protected;
2. when the vehicle-mounted PACK module discharges, the electric quantity of the vehicle-mounted PACK module can be fed back to the internal power grid, so that the electric quantity loss can be greatly reduced, the interference to the power grid is reduced, and the quality of the power grid can be further protected;
3. the PACK detection, energy storage and charge and discharge functions are realized on the body type charging pile, so that the occupied space of equipment can be reduced, excessive external interfaces are not needed, the complexity of the equipment can be reduced, the operation is convenient, and the use efficiency is improved;
4. the charging strategy of peak clipping and valley filling is applied to the body type charging pile, so that the load of an external power grid can be greatly reduced, and the quality of the external power grid is protected.
Drawings
The invention is further described with reference to the following examples and figures.
Fig. 1 is a schematic block diagram of intelligent energy storage and charging integrated devices.
Description of reference numerals:
100- integrated device, 1-vehicle PACK module, 2- integrated charging pile, 21-MCU, 22-battery PACK, 23- DC/DC conversion module, 24-second DC/DC conversion module, 25-AC/DC bidirectional conversion module, 3-load module, 4-internal power grid, 5-electric meter and 6-external power grid.
Detailed Description
Referring to fig. 1, in an embodiment of the intelligent energy storage and charging integrated device 100, the integrated device 100 includes a vehicle PACK module 1, a integrated charging pile 2, a load module 3, an internal power grid 4, an electric meter 5 and an external power grid 6;
the vehicle-mounted PACK module 1 is connected with the body type charging pile 2 so as to discharge the body type charging pile 2 through the vehicle-mounted PACK module 1 or charge the vehicle-mounted PACK module 1 through the body type charging pile 2;
the external power grid 6 is connected with the type charging pile 2 through the electric meter 5 to detect power supply of the external power grid 6 to an internal power grid 4 through the type charging pile 2, namely whether the external power grid 6 supplies power to the internal power grid 4 through the type charging pile 2 is detected, the external power grid 6 is connected with the internal power grid 4 through the electric meter 5 to supply power to the internal power grid 4 through the external power grid 6, the internal power grid 4 is connected with the type charging pile 2 to charge the type charging pile 2 through the internal power grid 4 or discharge the internal power grid 4 through the type charging pile 2, and the internal power grid 4 is connected with the load module 3 to supply power to the load module 3 through the internal power grid 4.
The vehicle-mounted PACK module 1 is an electric automobile or a PACK battery PACK with a discharging function, the body type charging pile 2 has PACK detection and energy storage functions, the load module 3 is local devices needing power supply, such as various electric appliances, lighting systems and the like, the internal power grid 4 is a power grid for supplying power to the devices in an internal area, the ammeter 5 is used for measuring the input total current of an external power grid, and the external power grid 6 is a power grid established by a power company.
The -type charging pile 2 comprises an MCU21, a battery pack 22, a -th DC/DC conversion module 23, a second DC/DC conversion module 24 and an AC/DC bidirectional conversion module 25;
the MCU21 is connected with the external power grid 6 through the ammeter 5 to detect the power supply of the external power grid 6 through the MCU21, the DC/DC conversion module 23 is connected with the on-board PACK module 1 to convert the current input and output of the on-board PACK module 1 through the DC/DC conversion module 23, and the battery PACK 22 is connected with the second DC/DC conversion module 24 to convert the current output and input of the battery PACK 22 through the second DC/DC conversion module 24;
the th DC/DC conversion module 23 is connected to the second DC/DC conversion module 24 to transmit the DC power outputted from the battery PACK 22 to the on-board PACK module 1 through the second DC/DC conversion module 23 for charging or transmit the DC power outputted from the on-board PACK module 1 to the battery PACK 22 through the th DC/DC conversion module 23 for discharging, the AC/DC bi-directional conversion module 25 is connected to the th DC/DC conversion module 23 to convert the AC power of the internal power grid 4 into DC power through the AC/DC bi-directional conversion module 25 and charge the on-board PACK module 1, and the second DC/DC conversion module 23 is connected to the AC/DC bi-directional conversion module 25, and the AC/DC bi-directional conversion module 25 is connected to the internal power grid 4 to convert the DC power outputted from the battery PACK 22 or the on-board PACK module 1 into AC power through the AC/DC bi-directional conversion module 25 and discharge the same to the internal power grid 4.
The MCU21 is used for detecting the total input current of an external power grid 6 from an ammeter 5 and controlling the operation of each module in the type charging pile 2, the battery PACK 22 is used for storing part of electric quantity when the vehicle-mounted PACK module 1 discharges so that power can be supplied during power failure or charging of the vehicle-mounted PACK module 1, the DC/DC conversion module 23 is used for converting the current input and output of the vehicle-mounted PACK module 1, the second DC/DC conversion module 24 is used for converting the current input and output of the battery PACK 22, and the AC/DC bidirectional conversion module 25 can convert the alternating current of the internal power grid 4 into direct current and charge the vehicle-mounted PACK module 1 and can convert the output direct current of the battery PACK 22 and the vehicle-mounted PACK module 1 into alternating current and input current to the internal power grid 4.
In an embodiment of the present invention, the method for controlling charging and discharging of intelligent energy storage charging integrated devices requires the integrated device, and includes:
setting initialization parameters of the integrated device;
the battery PACK of the type charging pile is matched with an internal power grid to charge the vehicle-mounted PACK module until the electric quantity of the vehicle-mounted PACK module is saturated, and the battery PACK of the type charging pile is matched with the vehicle-mounted PACK module to discharge to the internal power grid and supply power to the load module through the internal power grid.
In the present invention, the method further comprises: and the vehicle-mounted PACK module is full of electric quantity firstly and then is discharged completely so as to be detected, and then the vehicle-mounted PACK module is full of electric quantity.
In the present invention, the performing initialization parameter configuration and related parameter setting on the integrated device specifically includes:
rated current I for configuring vehicle-mounted PACK module to allow dischargingset(ii) a Rated voltage V for configuring vehicle-mounted PACK module to allow dischargingsetThe battery pack of the type charging pile allows the percentage PC of the electric quantity of an internal power grid and the electric quantity of the internal load to be input in real timeP(in%) the PCPGreater than 0% and less than 100%, when peak section is configuredCritical point electric quantity percentage PC of battery pack of body type charging pilePeak(s)(unit is%) and critical point electric quantity percentage PC of body type charging pile battery pack when valley section is configuredGrain(unit is%); configuration of power protection percentage PC in power failure modeHealth-care product(ii) a Rated power P for configuring vehicle PACK module to allow dischargingset；
Setting type charging pile to allow current of output battery pack to be ICellOutSetting type charging pile to allow current I input into battery packCellInSetting type charging pile to allow power input into internal power grid to be P in real timePdischarge(ii) a Setting the voltage of the on-board PACK module to VpackSetting voltage of type charging pile battery pack as Vcell(ii) a Setting the power consumed by the internal power grid to PLoad(s)Setting the output power of type charging pile to Pcellout(ii) a Setting the input voltage of the external power grid to the internal power grid through the ammeter to be Vex(ii) a Setting the input current of an external power grid to an internal power grid through an ammeter to be Iex。
In the invention, the charging of the vehicle-mounted PACK module is carried out by matching the battery PACK of the body type charging pile with an internal power grid until the electric quantity of the vehicle-mounted PACK module is saturated specifically as follows:
when the vehicle-mounted PACK is in the peak section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of the PC in real timePeak(s)If the charging is positive, the battery PACK of the body type charging pile is controlled to charge the vehicle-mounted PACK module;
when the vehicle-mounted PACK module is positioned in a power utilization valley section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of a PC (personal computer) in real timeGrainIf yes, the battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and if not, the battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK moduleAnd the internal power grid charges the vehicle-mounted PACK module.
According to the invention, a charging strategy of peak clipping and valley filling is applied to the type charging pile, and the battery PACK of the type charging pile is preferably selected to charge the vehicle-mounted PACK module regardless of the peak power consumption section or the valley power consumption section, so that the load of an external power grid can be greatly reduced, and the quality of the external power grid is protected.
In the invention, when a power failure condition occurs (namely, an external power grid stops supplying power to an internal power grid), the body type charging pile can be used as a power failure standby power supply, namely, the electric quantity stored by the body type charging pile is fed back to the internal power grid so as to ensure that the internal power grid can normally supply power when the external power grid is powered off, the battery PACK of the body type charging pile is matched with the vehicle-mounted PACK module to discharge to the internal power grid, and the internal power grid supplies power to the load module specifically comprises the following steps:
when the MCU of the body type charging pile detects that the external power grid stops supplying power to the internal power grid, if a body type charging pile battery pack power supply mode is set, discharging is carried out on the internal power grid only through the battery pack of the body type charging pile (namely, the electric quantity stored in the battery pack is fed back to the internal power grid), and the discharging is not stopped until the electric quantity of the battery pack is discharged, and power is supplied to the load module through the internal power grid, so that the load module can work normally;
if set up to free power supply mode, then detect whether style fills electric pile and has a connection the on-vehicle PACK module, if have the connection the on-vehicle PACK module, then judge whether the electric quantity of on-vehicle PACK module is greater than PCHealth-care productIf not, discharging to the internal power grid through the battery PACK of the type charging pile, stopping until the electric quantity of the battery PACK is discharged, and supplying power to the load module through the internal power gridThe load module supplies power;
if the vehicle-mounted PACK module is not connected, discharging is carried out on the battery PACK of the type charging pile to the internal power grid, the discharging is not stopped until the electric quantity of the battery PACK is discharged, and power is supplied to the load module through the internal power grid.
In specific implementation, the starting of the power failure standby power supply can be divided into a manual mode and an automatic mode; in an automatic mode, when the MCU detects that the external power grid stops supplying power to the internal power grid, the standby power supply for power failure is automatically started; in the manual mode, the power-off standby power supply needs to be manually turned on manually.
Meanwhile, the AC/DC bidirectional conversion module is arranged, so that the battery PACK of the type charging pile can be matched with the vehicle-mounted PACK module to discharge to the internal power grid, and the battery PACK of the type charging pile can be matched with the internal power grid to charge the vehicle-mounted PACK module, so that more reasonable distribution of electric quantity can be well realized, and the quality of the external power grid is protected.
In the present invention, said fully charging the on-board PACK module, then discharging the electric power of the on-board PACK module to detect the on-board PACK module, and then fully charging the electric power of the on-board PACK module specifically includes:
step A1, when the power consumption is in the peak section, if the electric quantity of the battery pack of the type charging pile is larger than that of the PCPeak(s)The battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and the electric quantity of the battery PACK of the type charging pile is less than or equal to that of a PCPeak(s)If the electric quantity of the vehicle-mounted PACK module is fully charged, the internal power grid is not started to charge; if the electric quantity of the vehicle-mounted PACK module is not fully charged, enabling the internal power grid to fully charge the electric quantity of the vehicle-mounted PACK module;
when the charging pile is in a valley section, if the power of the type charging pile battery pack is larger than that of the PCGrainAnd firstly controlling the type charging pile battery PACK to the vehicle-mounted PACK moduleCharging, wherein the electric quantity of the battery pack of the type charging pile is less than or equal to PCGrainIf the electric quantity of the vehicle-mounted PACK module is fully charged, the internal power grid is not started to charge; if the electric quantity of the vehicle-mounted PACK module is not fully charged, enabling the internal power grid to fully charge the electric quantity of the vehicle-mounted PACK module;
step A2, I for controlling the vehicle PACK modulesetThe style fill electric pile ICellInAnd I of the body type charging pileCellOutTo perform discharge, wherein PLoad(s)＝Iex*Vex+PPdischarge，PPdischarge＝PCP*PLoad(s)＝Pset+Pcellout，Pset＝Iset*Vpack，Pcellout＝ICellOut*VcellThe method specifically comprises the following steps:
when PC is usedP*PLoad(s)Greater than or equal to PsetAnd controlling the vehicle-mounted PACK module to discharge to the internal power grid, wherein the discharge current is Iset；
Meanwhile, when the charging pile is in a peak power consumption period, if the power of the type charging pile battery pack is larger than that of the PCPeak(s)And controlling the type charging pile battery pack to discharge to an internal power grid, wherein the maximum discharge allowable current is ICellOut＝(PCP*PLoad(s)-Pset)/VcellAnd the electric quantity of the battery pack of the -style charging pile is less than or equal to PCPeak(s)When the type charging pile is positioned at a power consumption valley section, if the electric quantity of the battery pack of the type charging pile is larger than that of a PC (personal computer)GrainAnd controlling the type charging pile battery pack to discharge to an internal power grid, wherein the maximum discharge allowable current is ICellOut＝(PCP*PLoad(s)-Pset)/VcellAnd the electric quantity of the battery pack of the -style charging pile is less than or equal to PCGrainWhen the current is discharged, stopping discharging the battery pack of the body type charging pile;
when PC is usedP*PLoad(s)Less than PsetAnd detecting the electric quantity of the type charging pile battery PACK, controlling the vehicle-mounted PACK module to simultaneously discharge the internal power grid and the battery PACK if the electric quantity of the battery PACK is not saturated, and allowing the power P of the internal power grid to be input at the momentPdischarge＝PCP*PLoad(s)Allowing current I to be input to the battery packCellIn＝(Pset-PCP*PLoad(s))/VcellThe discharge current of the vehicle-mounted PACK module is Iset；
If the electric quantity of the battery PACK is saturated, controlling the vehicle-mounted PACK module to only discharge to the internal power grid, and allowing the power P input into the internal power gridPdischarge＝PCP*PLoad(s)The actual discharge current of the vehicle-mounted PACK module is PCP*PLoad(s)/Vset；
Step A3, judging whether the vehicle PACK module discharges all electric quantity, and if so, entering step A4; if not, go to step A2;
step A4, through style fill electric pile's group battery and internal electric network cooperation to the on-vehicle PACK module charges, until on-vehicle PACK module electric quantity saturation specifically includes:
when the vehicle-mounted PACK is in the peak section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of the PC in real timePeak(s)If the charging is positive, the battery PACK of the body type charging pile is controlled to charge the vehicle-mounted PACK module;
when the vehicle-mounted PACK module is positioned in a power utilization valley section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of a PC (personal computer) in real timeGrainIf yes, the battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and if not, the internal power grid is controlled to charge the vehicle-mounted PACK moduleMeanwhile, when the vehicle-mounted PACK module discharges, the electric quantity of the vehicle-mounted PACK module can be fed back to the internal power grid, so that the electric quantity loss can be greatly reduced, the interference on the power grid is reduced, and the quality of the power grid can be further protected.
In summary, the invention has the following advantages:
1. by arranging the AC/DC bidirectional conversion module, the battery PACK of the type charging pile can be matched with the vehicle-mounted PACK module to discharge to the internal power grid, and the battery PACK of the type charging pile can be matched with the internal power grid to charge the vehicle-mounted PACK module, so that more reasonable distribution of electric quantity can be well realized, and the quality of an external power grid is protected;
2. when the vehicle-mounted PACK module discharges, the electric quantity of the vehicle-mounted PACK module can be fed back to the internal power grid, so that the electric quantity loss can be greatly reduced, the interference to the power grid is reduced, and the quality of the power grid can be further protected;
3. the PACK detection, energy storage and charge and discharge functions are realized on the body type charging pile, so that the occupied space of equipment can be reduced, excessive external interfaces are not needed, the complexity of the equipment can be reduced, the operation is convenient, and the use efficiency is improved;
4. the charging strategy of peak clipping and valley filling is applied to the body type charging pile, so that the load of an external power grid can be greatly reduced, and the quality of the external power grid is protected.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.

Claims (8)

  1. The intelligent energy storage and charging integrated device is characterized in that the integrated device comprises a vehicle-mounted PACK module, a integrated charging pile, a load module, an internal power grid, an electric meter and an external power grid;
    the vehicle-mounted PACK module is connected with the body type charging pile so as to discharge the body type charging pile through the vehicle-mounted PACK module or charge the vehicle-mounted PACK module through the body type charging pile;
    the external power grid is connected with the type charging pile through the ammeter so as to detect power supply of the external power grid to an internal power grid through the type charging pile, the external power grid is connected with the internal power grid through the ammeter so as to supply power to the internal power grid through the external power grid, the internal power grid is connected with the type charging pile so as to charge the type charging pile through the internal power grid or discharge the internal power grid through the type charging pile, and the internal power grid is connected with the load module so as to supply power to the load module through the internal power grid.
  2. 2. The intelligent energy storage and charging integrated device of claim 1, wherein the integrated charging post comprises an MCU, a battery pack, a DC/DC conversion module, a second DC/DC conversion module and an AC/DC bidirectional conversion module;
    the th DC/DC conversion module is connected with the vehicle-mounted PACK module to convert the current input and output of the vehicle-mounted PACK module through the th DC/DC conversion module;
    the DC/DC conversion module is connected with the second DC/DC conversion module to transmit the direct current output by the battery PACK to the vehicle-mounted PACK module for charging through the second DC/DC conversion module or transmit the direct current output by the vehicle-mounted PACK module to the battery PACK for discharging through the DC/DC conversion module, the AC/DC bidirectional conversion module is connected with the DC/DC conversion module to convert the alternating current of the internal power grid into the direct current through the AC/DC bidirectional conversion module and charge the vehicle-mounted PACK module, and the second DC/DC conversion module is connected with the AC/DC bidirectional conversion module which is connected with the internal power grid to convert the direct current output by the battery PACK or the vehicle-mounted PACK module into the alternating current through the AC/DC bidirectional conversion module and discharge the alternating current to the internal power grid.
  3. 3, intelligent energy storage charging integrated device charge-discharge control method, wherein the method needs to use integrated device as claimed in any of claims 1-2, the method includes:
    performing initialization parameter configuration and related parameter setting on the integrated device;
    the battery PACK of the type charging pile is matched with an internal power grid to charge the vehicle-mounted PACK module until the electric quantity of the vehicle-mounted PACK module is saturated, and the battery PACK of the type charging pile is matched with the vehicle-mounted PACK module to discharge to the internal power grid and supply power to the load module through the internal power grid.
  4. 4. The method for controlling charging and discharging of the intelligent energy storage and charging integrated devices as claimed in claim 3, further comprising the steps of fully charging the PACK module, then discharging the PACK module to detect the PACK module, and then fully charging the PACK module.
  5. 5. The charging and discharging control method for the intelligent energy storage and charging integrated devices as claimed in claim 3 or 4, wherein the initialization parameter configuration and related parameter setting of the integrated devices specifically comprises:
    rated current I for configuring vehicle-mounted PACK module to allow dischargingset(ii) a Rated voltage V for configuring vehicle-mounted PACK module to allow dischargingsetThe battery pack of the type charging pile allows the percentage PC of the electric quantity of an internal power grid and the electric quantity of the internal load to be input in real timePThe critical point electric quantity percentage PC of the battery pack of the -type charging pile during peak configurationPeak(s)The critical point electric quantity percentage PC of the battery pack of the -type charging pile during valley section configurationGrain(ii) a Configuration of power protection percentage PC in power failure modeHealth-care product(ii) a Rated power P for configuring vehicle PACK module to allow dischargingset；
    Setting type charging pile to allow current of output battery pack to be ICellOutSetting type charging pile to allow current I input into battery packCellInSetting type charging pile to allow power input into internal power grid to be P in real timePdischarge(ii) a Setting the voltage of the on-board PACK module to VpackSetting voltage of type charging pile battery pack as Vcell(ii) a Setting the power consumed by the internal power grid to PLoad(s)Setting the output power of type charging pile to Pcellout(ii) a Setting the input voltage of the external power grid to the internal power grid through the ammeter to be Vex(ii) a Setting the input current of an external power grid to an internal power grid through an ammeter to be Iex。
  6. 6. The charging and discharging control method for the intelligent energy storage and charging integrated devices as claimed in claim 5, wherein the step of charging the PACK module through the cooperation of the battery PACK of the integrated charging pile and an internal power grid until the PACK module is saturated is specifically as follows:
    when the vehicle-mounted PACK module is in the power consumption peak section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated, and if the electric quantity of the vehicle-mounted PACK module is saturated, not charging; if not saturatedAnd judging whether the electric quantity of the battery pack of the type charging pile is larger than the PC (personal computer) or not in real timePeak(s)If the charging is positive, the battery PACK of the body type charging pile is controlled to charge the vehicle-mounted PACK module;
    when the vehicle-mounted PACK module is positioned in a power utilization valley section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of a PC (personal computer) in real timeGrainIf the type charging pile is used, the battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and if the charging pile is not used, the internal power grid is controlled to charge the vehicle-mounted PACK module.
  7. 7. The charging and discharging control method for the intelligent energy storage and charging integrated devices as claimed in claim 5, wherein the step of discharging the battery PACK of the integrated charging pile to the internal power grid in cooperation with the vehicle PACK module and the step of supplying power to the load module through the internal power grid specifically comprises the steps of:
    when the MCU of the body type charging pile detects that the external power grid stops supplying power to the internal power grid, if a body type charging pile battery pack power supply mode is set, discharging is carried out on the internal power grid only through the battery pack of the body type charging pile, and power is supplied to the load module through the internal power grid;
    if set up to free power supply mode, then detect whether style fills electric pile and has a connection the on-vehicle PACK module, if have the connection the on-vehicle PACK module, then judge whether the electric quantity of on-vehicle PACK module is greater than PCHealth-care productIf the charging is not carried out, discharging is carried out to the internal power grid through the battery PACK of the type charging pile, and power is supplied to the load module through the internal power grid;
    and if the vehicle-mounted PACK module is not connected, discharging to the internal power grid through the battery PACK of the type charging pile, and supplying power to the load module through the internal power grid.
  8. 8. The charge-discharge control method of kinds of intelligent energy storage and charge integrated devices, as claimed in claim 5, wherein the step of fully charging the PACK module, then discharging the PACK module to detect the PACK module, and then fully charging the PACK module specifically comprises the steps of:
    step A1, when the power consumption is in the peak section, if the electric quantity of the battery pack of the type charging pile is larger than that of the PCPeak(s)The battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and the electric quantity of the battery PACK of the type charging pile is less than or equal to that of a PCPeak(s)If the electric quantity of the vehicle-mounted PACK module is fully charged, the internal power grid is not started to charge; if the electric quantity of the vehicle-mounted PACK module is not fully charged, enabling the internal power grid to fully charge the electric quantity of the vehicle-mounted PACK module;
    when the charging pile is in a valley section, if the power of the type charging pile battery pack is larger than that of the PCGrainThe battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and the electric quantity of the battery PACK of the type charging pile is less than or equal to that of a PCGrainIf the electric quantity of the vehicle-mounted PACK module is fully charged, the internal power grid is not started to charge; if the electric quantity of the vehicle-mounted PACK module is not fully charged, enabling the internal power grid to fully charge the electric quantity of the vehicle-mounted PACK module;
    step A2, I for controlling the vehicle PACK modulesetThe style fill electric pile ICellInAnd I of the body type charging pileCellOutTo perform discharge, wherein PLoad(s)＝Iex*Vex+PPdischarge，PPdischarge＝PCP*PLoad(s)＝Pset+Pcellout，Pset＝Iset*Vpack，Pcellout＝ICellOut*VcellThe method specifically comprises the following steps:
    when PC is usedP*PLoad(s)Greater than or equal to PsetAnd controlling the vehicle-mounted PACK module to discharge to the internal power grid, wherein the discharge current is Iset；
    Meanwhile, when the charging pile is in a peak power consumption period, if the power of the type charging pile battery pack is larger than that of the PCPeak(s)And controlling the type charging pile battery pack to discharge to an internal power grid, wherein the maximum discharge allowable current is ICellOut＝(PCP*PLoad(s)-Pset)/VcellAnd the electric quantity of the battery pack of the -style charging pile is less than or equal to PCPeak(s)When the type charging pile is positioned at a power consumption valley section, if the electric quantity of the battery pack of the type charging pile is larger than that of a PC (personal computer)GrainAnd controlling the type charging pile battery pack to discharge to an internal power grid, wherein the maximum discharge allowable current is ICellOut＝(PCP*PLoad(s)-Pset)/VcellAnd the electric quantity of the battery pack of the -style charging pile is less than or equal to PCGrainWhen the current is discharged, stopping discharging the battery pack of the body type charging pile;
    when PC is usedP*PLoad(s)Less than PsetAnd detecting the electric quantity of the type charging pile battery PACK, controlling the vehicle-mounted PACK module to simultaneously discharge the internal power grid and the battery PACK if the electric quantity of the battery PACK is not saturated, and allowing the power P of the internal power grid to be input at the momentPdischarge＝PCP*PLoad(s)Allowing current I to be input to the battery packCellIn＝(Pset-PCP*PLoad(s))/VcellThe discharge current of the vehicle-mounted PACK module is Iset；
    If the electric quantity of the battery PACK is saturated, controlling the vehicle-mounted PACK module to only discharge to the internal power grid, and allowing the power P input into the internal power gridPdischarge＝PCP*PLoad(s)The actual discharge current of the vehicle-mounted PACK module is PCP*PLoad(s)/Vset；
    Step A3, judging whether the vehicle PACK module discharges all electric quantity, and if so, entering step A4; if not, go to step A2;
    step A4, through style fill electric pile's group battery and internal electric network cooperation to the on-vehicle PACK module charges, until on-vehicle PACK module electric quantity saturation specifically includes:
    when the vehicle-mounted PACK is in the peak section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of the PC in real timePeak(s)If the charging is positive, the battery PACK of the body type charging pile is controlled to charge the vehicle-mounted PACK module;
    when the vehicle-mounted PACK module is positioned in a power utilization valley section, judging whether the electric quantity of the vehicle-mounted PACK module is saturated or not, if so, not charging, and if not, judging whether the electric quantity of the battery PACK of the type charging pile is larger than that of a PC (personal computer) in real timeGrainIf the type charging pile is used, the battery PACK of the type charging pile is controlled to charge the vehicle-mounted PACK module, and if the charging pile is not used, the internal power grid is controlled to charge the vehicle-mounted PACK module.
CN201910922386.4A 2019-09-27 2019-09-27 Intelligent energy storage and charging integrated device and charging and discharging control method thereof Active CN110739713B (en)

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