CN112821527A - Combined multi-path single lead-acid storage battery charging device and charging method - Google Patents
Combined multi-path single lead-acid storage battery charging device and charging method Download PDFInfo
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- 239000002253 acid Substances 0.000 title claims abstract description 16
- 239000000178 monomer Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000009795 derivation Methods 0.000 description 3
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- 238000004146 energy storage Methods 0.000 description 1
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- 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
- H01M10/06—Lead-acid accumulators
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- 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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- 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
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- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A combined multi-channel single lead-acid storage battery charging device and a charging method comprise a contactor KMn, a contactor KMan-1, a contactor KMbn and a contactor KMcn-1, wherein a charging module comprises a charging module An; the contactor KMn is used for controlling the working power supply of the charging module An; the contactor KMbn is used for controlling the output of the charging module An; the contactor KMan-1 is used for controlling and connecting the negative electrode of the charging module An-1 and the positive electrode of the charging module An to realize the superposition of output voltages of the charging module; the contactor KMcn-1 is used for controlling and connecting the anode of the charging module An-1 and the anode of the charging module An and connecting the cathode of the charging module An-1 and the cathode of the charging module An, so that the output current superposition of the charging module is realized. The invention can charge a plurality of paths of storage batteries simultaneously and provide outputs of various voltages and currents, thereby greatly improving the flexibility of the charging device, reducing the workload and improving the working efficiency.
Description
Technical Field
The invention belongs to the technical field of storage battery charging, and particularly relates to a combined multi-path monomer lead-acid storage battery charging device and a charging method.
Background
Lead-acid batteries have self-discharge during storage, which causes capacity loss and shortened life span of the batteries, and should be periodically charged and maintained. At present, a storage battery activation instrument is mostly adopted for the supplement charging during the storage period of the single storage battery, and only the single storage battery can be charged every time. For example, the "storage battery depolarization discharge energy storage cycle charging device" disclosed in chinese patent document CN87207292, and the "storage battery fast charging method and device" disclosed in CN97125842.2 do not disclose a combined charging method for a lead-acid storage battery.
The prior art has the following defects: when the number of the storage batteries is large, the storage batteries need to be charged one by one in sequence, and the maintenance workload is large.
Disclosure of Invention
In view of the technical problems in the background art, the combined multi-path single lead-acid storage battery charging device and the charging method provided by the invention can be used for simultaneously charging multi-path storage batteries and providing outputs of various voltages and currents, thereby greatly improving the flexibility of the charging device, reducing the workload and improving the working efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme to realize:
a combined multi-channel single lead-acid storage battery charging device and a charging method comprise a controller, a charging module and a contactor, wherein the controller is used for controlling a contactor coil to be powered on or powered off, the contactor comprises a contactor KMn, a contactor KMan-1, a contactor KMbn and a contactor KMcn-1, the charging module comprises a charging module An, and n represents a natural integer;
the contactor KMn is used for controlling the working power supply of the charging module An;
the contactor KMbn is used for controlling the output of the charging module An;
the contactor KMan-1 is used for controlling and connecting the negative electrode of the charging module An-1 and the positive electrode of the charging module An to realize the superposition of output voltage of the charging device;
the contactor KMcn-1 is used for controlling and connecting the anode of the charging module An-1 and the anode of the charging module An and connecting the cathode of the charging module An-1 and the cathode of the charging module An to realize the superposition of output currents of the charging device;
the controller controls each contactor according to the model of the storage battery to provide various voltage and current output combination strategies, is connected with each charging module through a data line, collects the voltage and current information of each charging module, and controls the charging process.
In the preferred scheme, the charging mode comprises a non-combined mode, a voltage combined mode, a current combined mode and a voltage and current combined mode, wherein n is more than or equal to 2 in the voltage combined mode and the current combined mode; in the voltage and current combined mode, n is more than or equal to 4;
in the non-combination mode: the contact of the contactor KM1 to the contactor KMn is closed, the contact of the contactor KMb1 to the contactor KMbn is closed; the contact from the contactor KMa1 to the contactor KMan-1 is opened, and the contact from the contactor KMc1 to the contactor KMcn-1 is opened;
the charging device provides n paths of output power supplies, namely 'U11, U22' to 'un 1, un 2' n paths of output power supplies, the output voltage is U, and the current is I; the un1 and un2 indicate the numbers of the anode and the cathode of the output power supply.
In a preferred embodiment, the voltage combination mode is:
1) when n =2, the contact of the contactor KM1 and the contactor KM2 is closed, and the contact of the contactor KMc1 is opened;
the contact point of the contactor KMa1 is closed, the contact points of the contactor KMb1 and the contactor KMb2 are closed, and the charging device provides output voltage of 2U and current of I at the output ends U11 and U22;
2) when n is greater than 2, the control of the contactor KMn, the contactor KMan-1, the contactor KMbn and the contactor KMcn-1 analogizes a voltage combination mode strategy;
the charging device provides k paths of output in a voltage combination mode, wherein each path of output voltage is xU, and the current is I;
wherein k, n and x satisfy the expression: k = [ n/x ];
k and x are positive integers, and n is more than or equal to x and more than or equal to 2.
In a preferred embodiment, the current combination mode is:
1) when n =2, the contact points of the contactor KM1 and the contactor KM2 are closed, the contact points of the contactor KMb1 and the contactor KMb2 are closed, and the contact point of the contactor KMa1 is opened;
the contact point of the contactor KMc1 is closed, the charging device provides output voltage U and current 2I at the output ends U11 and U12;
2) when n is greater than 2, the control of the contactor KMn, the contactor KMan-1, the contactor KMbn and the contactor KMcn-1 analogizes the current combination mode strategy;
the charging device provides k paths of output in a current combination mode, the output voltage of each path is U, and the current is yI;
wherein k, y and n satisfy the expression: k = [ n/y ];
k and y are positive integers, n is more than or equal to y and is more than or equal to 2, and k is not larger than n/y.
In a preferred embodiment, the voltage-current combination mode is:
1) when n =4, the contact KM 1-contact KM4 is closed, and the contact KMb 1-contact KMb4 is closed;
the contact of the contactor KMc1 and the contact of the contactor KMc3 is closed, and the contact of the contactor KMc2 is opened; the contact KMa2 is closed, and the contacts KMa1 and KMa3 are opened;
providing an output voltage of 2U and a current of 2I at output terminals 'U11, U42';
2) when n is greater than 4, the control of the contactor KMn, the contactor KMan-1, the contactor KMbn and the contactor KMcn-1 analogizes a voltage-current combination mode strategy;
the charging device provides k paths of output in a voltage and current combined mode, wherein each path of output voltage is xU, and the current is yI;
wherein k, x, y and n satisfy the expression: k = [ n/(xy) ];
k. x and y are positive integers, and x is more than or equal to 2; y is more than or equal to 2, and n is more than or equal to xy.
In the preferred scheme, the controller can carry out grouping control to the charging module, but every group independently selects any one of non-combination mode, voltage combination mode, current combination mode and voltage current combination mode, does not influence each other between each group, realizes that the battery of a plurality of models charges simultaneously.
This patent reaches following beneficial effect:
the charging device can charge multiple paths of storage batteries simultaneously, can provide multiple charging voltages and charging currents by outputting different combination configurations to the charging module, can meet the charging requirements of the storage batteries of different models, greatly improves the flexibility of the charging device, reduces the workload and improves the working efficiency.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic wiring diagram of the present invention;
FIG. 2 is a diagram of the connection of the controller to the contactor coil according to the present invention;
FIG. 3 is a diagram of the wiring between the contacts of the contactor and the charging module according to the present invention;
FIG. 4 is a wiring diagram of embodiment 1 of the present invention;
FIG. 5 is a wiring diagram of embodiment 2 of the present invention;
FIG. 6 is a wiring diagram of embodiment 3 of the present invention.
Detailed Description
The preferred scheme is as shown in fig. 1 to fig. 6, a combined multi-channel single lead-acid storage battery charging device and a charging method thereof, the device comprises a controller, a charging module and a contactor, the controller is used for controlling a contactor coil to be powered on or powered off, the contactor comprises a contactor KMn, a contactor KMan-1, a contactor KMbn and a contactor KMcn-1, the charging module comprises a charging module An, n represents a natural integer;
the contactor KMn is used for controlling the working power supply of the charging module An;
the contactor KMbn is used for controlling the output of the charging module An;
the contactor KMan-1 is used for controlling and connecting the negative electrode of the charging module An-1 and the positive electrode of the charging module An to realize the superposition of output voltage of the charging device;
the contactor KMcn-1 is used for controlling and connecting the anode of the charging module An-1 and the anode of the charging module An and connecting the cathode of the charging module An-1 and the cathode of the charging module An to realize the superposition of output currents of the charging device;
the controller controls each contactor according to the model of the storage battery to provide various voltage and current output combination strategies, is connected with each charging module through a data line, collects the voltage and current information of each charging module, and controls the charging process.
The controller in the technical scheme can adopt a PLC (programmable logic controller) and also can adopt a single chip microcomputer, the model of a main control board is ZCH, the model of a charging module is WZDC, and a display screen is TK 6071.
In a preferred scheme, the charging method of the combined multi-path single lead-acid storage battery charging device comprises the following steps:
the charging mode comprises a non-combined mode, a voltage combined mode, a current combined mode and a voltage and current combined mode, wherein n is more than or equal to 2 in the voltage combined mode and the current combined mode; in the voltage and current combined mode, n is more than or equal to 4;
in the non-combination mode: the contact of the contactor KM1 to the contactor KMn is closed, the contact of the contactor KMb1 to the contactor KMbn is closed; the contact from the contactor KMa1 to the contactor KMan-1 is opened, and the contact from the contactor KMc1 to the contactor KMcn-1 is opened;
the charging device provides n paths of output power supplies, namely 'U11, U22' to 'un 1, un 2' n paths of output power supplies, the output voltage is U, and the current is I; the un1 and un2 indicate the numbers of the anode and the cathode of the output power supply.
Further, the voltage combination mode:
1) when n =2, the contact of the contactor KM1 and the contactor KM2 is closed, and the contact of the contactor KMc1 is opened;
the contact point of the contactor KMa1 is closed, the contact points of the contactor KMb1 and the contactor KMb2 are closed, and the charging device provides output voltage of 2U and current of I at the output ends U11 and U22;
2) when n is greater than 2, the control of the contactor KMn, the contactor KMan-1, the contactor KMbn and the contactor KMcn-1 analogizes a voltage combination mode strategy;
the charging device provides k paths of output in a voltage combination mode, wherein each path of output voltage is xU, and the current is I;
wherein k, n and x satisfy the expression: k = [ n/x ];
k and x are positive integers, and n is more than or equal to x and more than or equal to 2.
The derivation process is as follows:
the contactor KM 1-KMn is closed, and KMc 1-KMcn-1 is opened;
output 1: the contact point from the contactor KMa1 to the contactor KMa (x-1) is closed, the contact point KMa (x) is opened, the contact point KMb1 and the contact point KMb (x) are closed, the contact point from the contactor KMb2 to the contactor KMb (x-1) is opened, and the output voltage xU and the current I are provided at the output ends u11 and ux 2;
and (3) outputting 2: the contact point from the contactor KMa (x +1) to the contactor KMa (2x-1) is closed, the contact point from the contactor KMa (2x) is opened, the contact point from the contactor KMb (x +1) and the contactor KMb (2x) is closed, the contact point from the contactor KMb (x +2) to the contactor KMb (2x-1) is opened, the output voltage xU and the current I are provided at the output ends u (x +1)1 and u (2x) 2;
and so on until k, k = [ n/x ] is output.
Example 1:
as shown in fig. 4, in the voltage combination mode, when n =6 and x =3, the charging device can provide 2 outputs, which are "U11, U32" and "U41, U62", respectively, and each output has a voltage of 3U and a current of I.
Further, current combination mode:
1) when n =2, the contact points of the contactor KM1 and the contactor KM2 are closed, the contact points of the contactor KMb1 and the contactor KMb2 are closed, and the contact point of the contactor KMa1 is opened;
the contact point of the contactor KMc1 is closed, the charging device provides output voltage U and current 2I at the output ends U11 and U12;
2) when n is greater than 2, the control of the contactor KMn, the contactor KMan-1, the contactor KMbn and the contactor KMcn-1 analogizes the current combination mode strategy;
the charging device provides k paths of output in a current combination mode, the output voltage of each path is U, and the current is yI;
wherein k, y and n satisfy the expression: k = [ n/y ];
k and y are positive integers, n is more than or equal to y and is more than or equal to 2, and k is not larger than n/y.
The derivation process is as follows:
the contactor KM 1-KMn is closed, KMb 1-KMbn is closed, and KMa 1-KMan-1 is opened;
output 1: the contact point from the contactor KMc1 to the contactor KMc (y-1) is closed, the contact point KMc (y) is opened, and the output voltage U and the current yI are provided at the output ends U11 and U12;
and (3) outputting 2: the contact point from the contactor KMc (y +1) to the contactor KMc (2y-1) is closed, the contact point of the contactor KMc (2y) is opened, and the output voltage U and the current yI are provided at the output ends U (y +1)1 and U (y +1) 2;
and so on until k, k = [ n/y ];
example 2:
as shown in fig. 5, in the current combination mode, when n =6 and y =3, the charging device can provide 2 outputs, which are respectively "U11, U12" and "U41, U42", each output has a voltage of U and a current of 3I.
Further, the voltage current combination mode:
1) when n =4, the contact KM 1-contact KM4 is closed, and the contact KMb 1-contact KMb4 is closed;
the contact of the contactor KMc1 and the contact of the contactor KMc3 is closed, and the contact of the contactor KMc2 is opened; the contact KMa2 is closed, and the contacts KMa1 and KMa3 are opened;
providing an output voltage of 2U and a current of 2I at output terminals 'U11, U42';
2) when n is greater than 4, the control of the contactor KMn, the contactor KMan-1, the contactor KMbn and the contactor KMcn-1 analogizes a voltage-current combination mode strategy;
the charging device provides k paths of output in a voltage and current combined mode, wherein each path of output voltage is xU, and the current is yI;
wherein k, x, y and n satisfy the expression: k = [ n/(xy) ];
k. x and y are positive integers, and x is more than or equal to 2; y is more than or equal to 2, n is more than or equal to xy;
the derivation process is as follows:
contactor KM 1-KMn closed, KMb 1-KMbn closed;
output 1:
contact KMc1 to contact KMc (y-1) closed, contact kmc (y) open, contact kma (y) closed, contact KMa1 to contact KMa (y-1) open;
the contact of contactor KMc (y +1) to contactor KMc (2y-1) is closed, the contact of contactor KMc (2y) is open, the contact of contactor KMa (2y) is closed, and the contact of contactor KMa (y +1) to contactor KMa (2y-1) is open;
by analogy, it can be known that:
contact KMc ((x-1) y +1) to contact KMc ((x) y-1) contact closed, contact KMc ((x) y) contact open; contact KMa ((x) y) contact is open, contact KMa ((x-1) y +1) to contact KMa ((x) y-1) contact is open;
providing an output voltage of xU and a current of yI at an output terminal u11, u (x) y 2;
and (3) outputting 2:
contact KMc ((x) y +1) to contact KMc ((x +1) y-1) contact is closed, and contact KMc ((x +1) y) contact is open; contact KMa ((x +1) y) contact is closed, contact KMa ((x) y +1) to contact KMa ((x +1) y-1) contact is open;
contact KMc ((x +1) y +1) to contact KMc ((x +2) y-1) contact is closed, contact KMc ((x +2) y) contact is open; contact KMa ((x +2) y) contact is closed, contact KMa ((x +1) y +1) to contact KMa ((x +2) y-1) contact is open;
by analogy, it can be known that:
contact KMc ((2 x-1) y +1) to contact KMc ((2 x) y-1) contact is closed, contact KMc ((2 x) y) contact is open; contact KMa ((2 x) y) is open, contact KMa ((2 x-1) y +1) to contact KMa ((2 x) y-1) is open;
providing an output voltage xU and a current yI at output terminals "[ u (x) y +1]1, u (2x) y 2";
until output k, k = [ n/(xy) ].
Example 3:
as shown in fig. 6, in the combined voltage and current mode, when n =8, x =2, and y =2, the charging device can provide 2 outputs, which are "U11, U42" and "U51, U82", respectively, and each output has a voltage of 2U and a current of 2I.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (6)
1. The utility model provides a modular multichannel monomer lead acid battery charging device, includes controller, the module of charging and contactor, and the controller is used for controlling the contactor coil to get electric or cut off the power supply, its characterized in that: the contactor comprises a contactor KMn, a contactor KMan-1, a contactor KMbn and a contactor KMcn-1, the charging module comprises a charging module An, and n represents a natural integer;
the contactor KMn is used for controlling the working power supply of the charging module An;
the contactor KMbn is used for controlling the output of the charging module An;
the contactor KMan-1 is used for controlling and connecting the negative electrode of the charging module An-1 and the positive electrode of the charging module An to realize the superposition of output voltages of the charging module;
the contactor KMcn-1 is used for controlling and connecting the anode of the charging module An-1 and the anode of the charging module An and connecting the cathode of the charging module An-1 and the cathode of the charging module An to realize the superposition of output currents of the charging module;
the controller controls each contactor according to the model of the storage battery to provide various voltage and current output combination strategies, is connected with each charging module through a data line, collects the voltage and current information of each charging module, and controls the charging process.
2. The charging method of the combined multi-cell lead-acid battery charging device according to claim 1, wherein: the charging mode comprises a non-combined mode, a voltage combined mode, a current combined mode and a voltage and current combined mode, wherein n is more than or equal to 2 in the voltage combined mode and the current combined mode; in the voltage and current combined mode, n is more than or equal to 4;
in the non-combination mode: the contact of the contactor KM1 to the contactor KMn is closed, the contact of the contactor KMb1 to the contactor KMbn is closed; the contact from the contactor KMa1 to the contactor KMan-1 is opened, and the contact from the contactor KMc1 to the contactor KMcn-1 is opened;
the charging device provides n paths of output power supplies, namely, from 'U11, U22' to 'un 1, un 2' n paths of output power supplies, the output voltage is U, and the current is I; the un1 and un2 indicate the numbers of the anode and the cathode of the output power supply.
3. The charging method of the combined multi-cell lead-acid battery charging device according to claim 2, wherein: a voltage combination mode:
1) when n =2, the contact of the contactor KM1 and the contactor KM2 is closed, and the contact of the contactor KMc1 is opened;
the contact point of the contactor KMa1 is closed, the contact points of the contactor KMb1 and the contactor KMb2 are closed, and the charging device provides output voltage of 2U and current of I at the output ends U11 and U22;
2) when n is greater than 2, the control of the contactor KMn, the contactor KMan-1, the contactor KMbn and the contactor KMcn-1 analogizes a voltage combination mode strategy;
the charging device provides k paths of output in a voltage combination mode, wherein each path of output voltage is xU, and the current is I;
wherein k, n and x satisfy the expression: k = [ n/x ];
k and x are positive integers, and n is more than or equal to x and more than or equal to 2.
4. The charging method of the combined multi-cell lead-acid battery charging device according to claim 2, wherein: current combination mode:
1) when n =2, the contact points of the contactor KM1 and the contactor KM2 are closed, the contact points of the contactor KMb1 and the contactor KMb2 are closed, and the contact point of the contactor KMa1 is opened;
the contact point of the contactor KMc1 is closed, the charging device provides output voltage U and current 2I at the output ends U11 and U12;
2) when n is greater than 2, the control of the contactor KMn, the contactor KMan-1, the contactor KMbn and the contactor KMcn-1 analogizes the current combination mode strategy;
the charging device provides k paths of output in a current combination mode, the output voltage of each path is U, and the current is yI;
wherein k, y and n satisfy the expression: k = [ n/y ];
k and y are positive integers, n is more than or equal to y and is more than or equal to 2, and k is not larger than n/y.
5. The charging method of the combined multi-cell lead-acid battery charging device according to claim 2, wherein: voltage current combination mode:
1) when n =4, the contact KM 1-contact KM4 is closed, and the contact KMb 1-contact KMb4 is closed;
the contact of the contactor KMc1 and the contact of the contactor KMc3 is closed, and the contact of the contactor KMc2 is opened; the contact KMa2 is closed, and the contacts KMa1 and KMa3 are opened;
providing an output voltage of 2U and a current of 2I at output terminals 'U11, U42';
2) when n is greater than 4, the control of the contactor KMn, the contactor KMan-1, the contactor KMbn and the contactor KMcn-1 analogizes a voltage-current combination mode strategy;
the charging device provides k paths of output in a voltage and current combined mode, wherein each path of output voltage is xU, and the current is yI;
wherein k, x, y and n satisfy the expression: k = [ n/(xy) ];
k. x and y are positive integers, and x is more than or equal to 2; y is more than or equal to 2, and n is more than or equal to xy.
6. The charging method of the combined multi-cell lead-acid battery charging device according to claim 2, wherein: the controller can carry out grouping control to the module of charging, and every group can adopt different charge mode, realizes that the battery of a plurality of models charges simultaneously.
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CN112224081A (en) * | 2020-10-15 | 2021-01-15 | 阳光电源股份有限公司 | Multi-gun charging pile and charging pile circuit |
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CN110429671A (en) * | 2019-06-21 | 2019-11-08 | 北京航空航天大学 | A kind of electric car high-adaptability charging system and method |
CN112224081A (en) * | 2020-10-15 | 2021-01-15 | 阳光电源股份有限公司 | Multi-gun charging pile and charging pile circuit |
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