CN206850495U - A kind of unidirectional active equalization battery management system of two-way based on multiple-unit sorting - Google Patents
A kind of unidirectional active equalization battery management system of two-way based on multiple-unit sorting Download PDFInfo
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- CN206850495U CN206850495U CN201720801646.9U CN201720801646U CN206850495U CN 206850495 U CN206850495 U CN 206850495U CN 201720801646 U CN201720801646 U CN 201720801646U CN 206850495 U CN206850495 U CN 206850495U
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Abstract
The utility model belongs to batteries to store energy technical field, and in particular to a kind of unidirectional active equalization battery management system of two-way based on multiple-unit sorting.Utilize the unidirectional parallel active equalization method of two-way of multiple-unit sorting, using power supply of the batteries string as balanced electric power and " load ", the multiple single batteries for being more than or equal to the tolerance value of setting to magnitude of voltage in batteries string and charge value deviation simultaneously carry out the unidirectional parallel actively balanced regulation and control of stream of two-way, monitored during the high-precision real that can effectively realize battery operation, the charging and discharging currents control of accurate science, the voltage and electricity uniformity active equalization of each single battery of batteries string, voltage and the larger multiple batteries of electricity deviation can be made, the equilibrium of batteries string is realized during charging and discharging each time, reach the uniformity management and control of effective batteries string voltage and electricity, realize the safety of energy-storage system of accumulator, health, Effec-tive Function, energy-storage system, which is applied, has great positive effect.
Description
Technical field
The utility model belongs to batteries to store energy technical field, and in particular to a kind of two-way based on multiple-unit sorting is unidirectional
Active equalization battery management system.
Background technology
Energy-storage system is the important component particularly electrochemistry of new energy electric power and intelligent grid and energy internet
Energy storage.Become it is well known that the batteries string that electrochemical energy storage system is made up of the connection of multiple unit single batteries enters
Flow device equipment and carry out discharge and recharge, controlled completion electric adjustment.Real-time monitoring, charging and discharging currents control, the electric power storage of battery operation
The voltage and electricity uniformity Balance route of each single battery of pond group string are that energy-storage system is safe and healthy, pass of Effec-tive Function
Key, need to design effective battery management system BMS for this and complete above-mentioned task, supervise during the high-precision real of battery operation
Survey, the charging and discharging currents of accurate science control, the voltage of each single battery of batteries string and electricity uniformity are actively effective
Balanced adjust be the key technology of battery management system and realize difficult point.
The content of the invention
In order to realize effective battery monitor and management, the utility model proposes a kind of two-way based on multiple-unit sorting
Unidirectional active equalization battery management system, mainly includes：Unidirectional charging DC/DC modules, DC charging isolating transformer, high pressure
Positive DC bus, high voltage negative dc bus, batteries string negative terminal, batteries string positive terminal, low pressure charging
Positive DC bus, low pressure discharge positive DC bus, low pressure negative DC bus, system control module, electric-controlled switch driving
Circuit, accumulator parameter acquisition module, system bus, system power supply module, unidirected discharge DC/DC modules, direct-current discharge isolation
Transformer, signal parameter collection wire harness, electric-controlled switch drive control line, communication interface circuit, upper control machine, bidirectional energy-storage change
Flow device, the 1st single battery, the 2nd single battery, the n-th single battery, the 1st automatically controlled gating switch, the 2nd automatically controlled gating
Switch, the n-th automatically controlled gating switch, the 1st automatically controlled gating switch charging anode connection terminal, the 1st automatically controlled gating switch electric discharge positive pole connect
Connect end, the 1st automatically controlled gating switch battery connection end, the 2nd automatically controlled gating switch charging anode connection terminal, the 2nd automatically controlled gating are opened
Close electric discharge anode connection terminal, the 2nd automatically controlled gating switch battery connection end, the n-th automatically controlled gating switch charging anode connection terminal, the
The automatically controlled gating switch electric discharge anode connection terminals of n, the n-th automatically controlled gating switch battery connection end, the 1st single battery cathode voltage
And temperature parameter collection sensor, the 1st single battery cathode voltage and temperature parameter collection sensor, the 2nd single battery
Cathode voltage and temperature parameter collection sensor, the 2nd single battery cathode voltage and temperature parameter collection sensor, n-th store
Battery cell cathode voltage and temperature parameter collection sensor, the n-th single battery cathode voltage and temperature parameter collection sensing
Device, batteries string current parameters collection sensor, wherein：
Batteries string in order the 1st single battery, the 2nd single battery, the n-th single battery arrangement, successively by
1st single battery positive pole starts to connect the negative pole of next battery, and the positive pole connection of each single battery is next
The 1st single battery negative pole access electric power storage of the batteries string and batteries string of the negative pole composition series connection of single battery
Pond group string negative terminal, and the n-th single battery positive pole access batteries string positive terminal of batteries string, then by storing
Battery pack string negative terminal and batteries string positive terminal are female by high voltage negative dc bus and high-voltage positive electrode direct current respectively
Line is sequentially connected with DC charging isolating transformer and unidirectional charging DC/DC modules, while batteries string negative terminal and electric power storage
Pond group string positive terminal connects the negative pole and positive pole of bidirectional energy-storage current converter direct-flow input end respectively, forms batteries string and makees
The power supply one-way power path charged for current-sharing power supply and the energy storage charge-discharge electric power path of batteries string；
Batteries string in order the 1st single battery, the 2nd single battery, the n-th single battery arrangement, successively by
1st single battery positive pole starts to connect the negative pole of next battery, and the positive pole connection of each single battery is next
The 1st single battery negative pole access electric power storage of the batteries string and batteries string of the negative pole composition series connection of single battery
Pond group string negative terminal, and the n-th single battery positive pole access batteries string positive terminal of batteries string, then by storing
Battery pack string negative terminal and batteries string positive terminal are female by high voltage negative dc bus and high-voltage positive electrode direct current respectively
Line is sequentially connected with direct-current discharge isolating transformer and unidirected discharge DC/DC modules, while batteries string negative terminal and electric power storage
Pond group string positive terminal connects the negative pole and positive pole of bidirectional energy-storage current converter direct-flow input end respectively, forms batteries string and makees
One-way power path and the energy storage charge-discharge electric power path of batteries string are received for the electric power that current-sharing power supply is discharged；
1st single battery negative pole connects low pressure negative DC bus and the 1st single battery positive pole is even automatically controlled by the 1st
1st automatically controlled gating switch battery connection end of gating switch, and pass through the 1st by the 1st automatically controlled gating switch battery connection end
Automatically controlled gating switch charging anode connection terminal access low pressure charging positive DC bus, at the same low pressure charging positive DC bus and
Low pressure negative DC bus is respectively connected to the low-pressure side positive pole and negative pole of unidirectional charging DC/DC modules, forms the 1st single battery
The charging power path flowed；
1st single battery negative pole connects low pressure negative DC bus and the connection the 1st of the 1st single battery positive pole is automatically controlled
1st automatically controlled gating switch battery connection end of gating switch, and pass through the 1st by the 1st automatically controlled gating switch battery connection end
Automatically controlled gating switch electric discharge anode connection terminal access low pressure discharge positive DC bus, at the same low pressure discharge positive DC bus and
Low pressure negative DC bus is respectively connected to the low-pressure side positive pole and negative pole of unidirected discharge DC/DC modules, forms the 1st single battery
The discharged power path flowed；
2nd single battery negative pole connects low pressure negative DC bus and the connection the 2nd of the 2nd single battery positive pole is automatically controlled
2nd automatically controlled gating switch battery connection end of gating switch, and pass through the 2nd by the 2nd automatically controlled gating switch battery connection end
Automatically controlled gating switch charging anode connection terminal access low pressure charging positive DC bus, at the same low pressure charging positive DC bus and
Low pressure negative DC bus is respectively connected to the low-pressure side positive pole and negative pole of unidirectional charging DC/DC modules, forms the 2nd single battery
The charging power path flowed；
2nd single battery negative pole connects low pressure negative DC bus and the connection the 2nd of the 2nd single battery positive pole is automatically controlled
2nd automatically controlled gating switch battery connection end of gating switch, and pass through the 2nd by the 2nd automatically controlled gating switch battery connection end
Automatically controlled gating switch electric discharge anode connection terminal access low pressure discharge positive DC bus, at the same low pressure discharge positive DC bus and
Low pressure negative DC bus is respectively connected to the low-pressure side positive pole and negative pole of unidirected discharge DC/DC modules, forms the 2nd single battery
The discharged power path flowed；
N-th single battery negative pole connects low pressure negative DC bus and the connection n-th of the n-th single battery positive pole is automatically controlled
N-th automatically controlled gating switch battery connection end of gating switch, and pass through n-th by the n-th automatically controlled gating switch battery connection end
Automatically controlled gating switch charging anode connection terminal access low pressure charging positive DC bus, at the same low pressure charging positive DC bus and
Low pressure negative DC bus is respectively connected to the low-pressure side positive pole and negative pole of unidirectional charging DC/DC modules, forms the n-th single battery
The charging power path flowed；
N-th single battery negative pole connects low pressure negative DC bus and the connection n-th of the n-th single battery positive pole is automatically controlled
N-th automatically controlled gating switch battery connection end of gating switch, and pass through n-th by the n-th automatically controlled gating switch battery connection end
Automatically controlled gating switch electric discharge anode connection terminal access low pressure discharge positive DC bus, at the same low pressure discharge positive DC bus and
Low pressure negative DC bus is respectively connected to the low-pressure side positive pole and negative pole of unidirected discharge DC/DC modules, forms the n-th single battery
The discharged power path flowed；
System control module connected respectively by system bus Bidirectional charging-discharging DC/DC modules, electric-controlled switch drive circuit,
Accumulator parameter acquisition module, unidirected discharge DC/DC modules, form system monitoring and control link；
Electric-controlled switch drive circuit connects the 1st automatically controlled gating switch, the 2nd automatically controlled respectively by electric-controlled switch drive control line
Gating switch, the n-th automatically controlled gating switch, form battery positive voltage connection low pressure charging positive DC bus or battery connection is low
Press the controlled gating control driving link of electric negative DC bus；
Accumulator parameter acquisition module by signal parameter gather wire harness connect respectively the 1st single battery cathode voltage and
Temperature parameter collection sensor, the 1st single battery cathode voltage and temperature parameter collection sensor, the 2nd single battery are born
Pole tension and temperature parameter collection sensor, the 2nd single battery cathode voltage and temperature parameter collection sensor, the n-th electric power storage
Pond monomer cathode voltage and temperature parameter collection sensor (Tn1), the n-th single battery cathode voltage and temperature parameter collection pass
Sensor and batteries gather sensor into current parameters, form the information link of battery tension and temperature parameter collection；
System power supply module connects Bidirectional charging-discharging DC/DC modules, unidirected discharge DC/DC modules and system control mould respectively
Block, form the energizing power path of battery management system；
System control module connection communication interface circuit, and upper control machine and two-way storage are linked by communication interface circuit
Can current converter, composition battery management system and the communication of upper control machine and bidirectional energy-storage current converter progress information exchange
Link.
The utility model proposes a kind of two-way active equalizing battery management system based on multiple-unit sorting, using more
The unidirectional parallel active equalization method of two-way of unit sorting, using power supply of the batteries string as balanced electric power and " load ", together
When setting is more than or equal to magnitude of voltage in batteries string and charge value deviation multiple single batteries of tolerance value enter
Row the two-way unidirectional parallel actively balanced regulation and control of stream, more monomers independently monitor the high accuracy that can effectively realize battery operation
Monitoring in real time, charging and discharging currents control, the voltage of each single battery of batteries string and the electricity uniformity master of accurate science
It is dynamic effective balanced, voltage and the larger multiple batteries of electricity deviation can be made, realize and store during charging and discharging each time
Battery pack string is equalized, and is reached the uniformity management and control of effective batteries string voltage and electricity, is realized batteries to store energy system
Safe and healthy, the Effec-tive Function of system, energy-storage system, which is applied, has great positive effect.
Brief description of the drawings
Fig. 1 is a kind of principle of compositionality frame of the unidirectional active equalization battery management system of two-way based on multiple-unit sorting
Figure.
Embodiment
As examples of implementation, with reference to Fig. 1 to a kind of unidirectional active equalization battery management of two-way sorted based on multiple-unit
System is described, and still, technology of the present utility model is not limited to the content that the present embodiment provides with scheme.
As shown in figure 1, the utility model proposes a kind of unidirectional active equalization battery pipe of two-way based on multiple-unit sorting
Reason system, mainly includes：Unidirectional charging DC/DC modules (1), DC charging isolating transformer (2), high-voltage positive electrode dc bus
(3), high voltage negative dc bus (4), batteries string negative terminal (5), batteries string positive terminal (6), low pressure charging
Positive DC bus (71), low pressure discharge positive DC bus (72), low pressure negative DC bus (8), system control module
(9), electric-controlled switch drive circuit (10), accumulator parameter acquisition module (11), system bus (12), system power supply module
(13), unidirected discharge DC/DC modules (14), direct-current discharge isolating transformer (15), signal parameter collection wire harness (16), automatically controlled open
Close drive control line (17), communication interface circuit (18), upper control machine (19), bidirectional energy-storage current converter (20), the 1st electric power storage
Pond monomer (S1), the 2nd single battery (S2), the n-th single battery (Sn), the 1st automatically controlled gating switch (K1), the 2nd automatically controlled choosing
Open up pass (K2), the n-th automatically controlled gating switch (Kn), the 1st automatically controlled gating switch charging anode connection terminal (a1), the 1st automatically controlled gating
Switch discharge anode connection terminal (b1), the 1st automatically controlled gating switch battery connection end (c1), the 2nd automatically controlled gating switch charging are just
Pole connection end (a2), the 2nd automatically controlled gating switch electric discharge anode connection terminal (b2), the 2nd automatically controlled gating switch battery connection end
(c2), the n-th automatically controlled gating switch charging anode connection terminal (an), the n-th automatically controlled gating switch electric discharge anode connection terminal (bn), n-th
Automatically controlled gating switch battery connection end (cn), the 1st single battery cathode voltage and temperature parameter collection sensor (T11),
1st single battery cathode voltage and temperature parameter collection sensor (T12), the 2nd single battery cathode voltage and temperature ginseng
Number collection sensor (T21), the 2nd single battery cathode voltage and temperature parameter collection sensor (T22), the n-th battery list
Body cathode voltage and temperature parameter collection sensor (Tn1), the n-th single battery cathode voltage and temperature parameter collection sensor
(Tn2), batteries string current parameters collection sensor (Ti), wherein：
Batteries string the 1st single battery (S1), the 2nd single battery (S2), the n-th single battery (Sn) in order
Arrangement, the negative pole of next battery is connected by the 1st single battery (S1) positive pole successively, each single battery
Positive pole connects the batteries string of negative pole composition series connection and the 1st battery list of batteries string of next single battery
Body negative pole (S11) access batteries string negative terminal (5), and the n-th single battery positive pole (Sn2) of batteries string connect
Enter batteries string positive terminal (6), then by batteries string negative terminal (5) and batteries string positive terminal (6) difference
DC charging isolating transformer (2) and list are sequentially connected with by high voltage negative dc bus (4) and high-voltage positive electrode dc bus (3)
To charging DC/DC modules (1), while batteries string negative terminal (5) and batteries string positive terminal (6) connect pair respectively
To the negative pole and positive pole of energy storage current converter (20) direct-flow input end, form what batteries string was charged as current-sharing power supply
Power supply one-way power path and the energy storage charge-discharge electric power path of batteries string；
Batteries string the 1st single battery (S1), the 2nd single battery (S2), the n-th single battery (Sn) in order
Arrangement, the negative pole of next battery is connected by the 1st single battery (S1) positive pole successively, each single battery
Positive pole connects the batteries string of negative pole composition series connection and the 1st battery list of batteries string of next single battery
Body negative pole (S11) access batteries string negative terminal (5), and the n-th single battery positive pole (Sn2) of batteries string connect
Enter batteries string positive terminal (6), then by batteries string negative terminal (5) and batteries string positive terminal (6) difference
By high voltage negative dc bus (4) and high-voltage positive electrode dc bus (3) be sequentially connected with direct-current discharge isolating transformer (15) and
Unidirected discharge DC/DC modules (14), while batteries string negative terminal (5) and batteries string positive terminal (6) connect respectively
The negative pole and positive pole of bidirectional energy-storage current converter (20) direct-flow input end are connect, batteries string is formed and is put as current-sharing power supply
The electric power of electricity receives one-way power path and the energy storage charge-discharge electric power path of batteries string；
1st single battery negative pole (S11) connection low pressure negative DC bus (8) and the 1st single battery positive pole
(S12) the 1st automatically controlled gating switch battery connection end (c1) of the 1st automatically controlled gating switch (K1) is connected, and by the 1st automatically controlled gating
Switch battery connection end (c1) and low pressure charging positive DC is accessed by the 1st automatically controlled gating switch charging anode connection terminal (a1)
Bus (71), while low pressure charging positive DC bus (71) and low pressure negative DC bus (8) are respectively connected to the DC/ that unidirectionally charges
The low-pressure side positive pole and negative pole of DC modules (1), form the charging power path that the 1st single battery (S1) is flowed；
1st single battery negative pole (S11) connection low pressure negative DC bus (8) and the 1st single battery positive pole
(S12) the 1st automatically controlled gating switch battery connection end (c1) of the 1st automatically controlled gating switch (K1) is connected, and by the 1st automatically controlled gating
Switch battery connection end (c1) and low pressure discharge positive DC is accessed by the 1st automatically controlled gating switch electric discharge anode connection terminal (b1)
Bus (72), while low pressure discharge positive DC bus (72) and low pressure negative DC bus (8) are respectively connected to unidirected discharge DC/
The low-pressure side positive pole and negative pole of DC modules (14), form the discharged power path that the 1st single battery (S1) is flowed；
2nd single battery negative pole (S21) connection low pressure negative DC bus (8) and the 2nd single battery positive pole
(S22) the 2nd automatically controlled gating switch battery connection end (c2) of the 2nd automatically controlled gating switch (K2) is connected, and by the 2nd automatically controlled gating
Switch battery connection end (c2) and low pressure charging positive DC is accessed by the 2nd automatically controlled gating switch charging anode connection terminal (a2)
Bus (71), while low pressure charging positive DC bus (71) and low pressure negative DC bus (8) are respectively connected to the DC/ that unidirectionally charges
The low-pressure side positive pole and negative pole of DC modules (1), form the charging power path that the 2nd single battery (S2) is flowed；
2nd single battery negative pole (S21) connection low pressure negative DC bus (8) and the 2nd single battery positive pole
(S22) the 2nd automatically controlled gating switch battery connection end (c2) of the 2nd automatically controlled gating switch (K2) is connected, and by the 2nd automatically controlled gating
Switch battery connection end (c2) and low pressure discharge positive DC is accessed by the 2nd automatically controlled gating switch electric discharge anode connection terminal (b2)
Bus (72), while low pressure discharge positive DC bus (72) and low pressure negative DC bus (8) are respectively connected to unidirected discharge DC/
The low-pressure side positive pole and negative pole of DC modules (14), form the discharged power path that the 2nd single battery (S2) is flowed；
N-th single battery negative pole (Sn1) connection low pressure negative DC bus (8) and the n-th single battery positive pole
(Sn2) the n-th automatically controlled gating switch battery connection end (cn) of the n-th automatically controlled gating switch (Kn) is connected, and by the n-th automatically controlled gating
Switch battery connection end (cn) and low pressure charging positive DC is accessed by the n-th automatically controlled gating switch charging anode connection terminal (an)
Bus (71), while low pressure charging positive DC bus (71) and low pressure negative DC bus (8) are respectively connected to the DC/ that unidirectionally charges
The low-pressure side positive pole and negative pole of DC modules (1), form the charging power path that the n-th single battery (Sn) is flowed；
N-th single battery negative pole (Sn1) connection low pressure negative DC bus (8) and the n-th single battery positive pole
(Sn2) the n-th automatically controlled gating switch battery connection end (cn) of the n-th automatically controlled gating switch (Kn) is connected, and by the n-th automatically controlled gating
Switch battery connection end (cn) and low pressure discharge positive DC is accessed by the n-th automatically controlled gating switch electric discharge anode connection terminal (bn)
Bus (72), while low pressure discharge positive DC bus (72) and low pressure negative DC bus (8) are respectively connected to unidirected discharge DC/
The low-pressure side positive pole and negative pole of DC modules (14), form the discharged power path that the n-th single battery (Sn) is flowed；
System control module (9) is connected Bidirectional charging-discharging DC/DC modules (1) by system bus (12), automatically controlled opened respectively
Drive circuit (10), accumulator parameter acquisition module (11), unidirected discharge DC/DC modules (14) are closed, forms system monitoring and control
Link processed；
Electric-controlled switch drive circuit (10) connects the 1st automatically controlled gating switch respectively by electric-controlled switch drive control line (17)
(K1), the 2nd automatically controlled gating switch (K2), the n-th automatically controlled gating switch (Kn), it is straight to form battery positive voltage connection low pressure charging positive pole
Flow the controlled gating control driving link of bus (71) or battery connection low pressure discharge negative DC bus (72)；
Accumulator parameter acquisition module (11) connects the 1st single battery by signal parameter collection wire harness (16) and born respectively
Pole tension and temperature parameter collection sensor (T11), the 1st single battery cathode voltage and temperature parameter collection sensor
(T12), the 2nd single battery cathode voltage and temperature parameter collection sensor (T21), the 2nd single battery cathode voltage and
Temperature parameter collection sensor (T22), the n-th single battery cathode voltage and temperature parameter collection sensor (Tn1), n-th store
Battery cell cathode voltage and temperature parameter collection sensor (Tn2) and batteries gather sensor into current parameters
(Ti) information link of battery tension and temperature parameter collection, is formed；
System power supply module (13) connects Bidirectional charging-discharging DC/DC modules (1), unidirected discharge DC/DC modules (14) respectively
With system control module (9), the energizing power path of battery management system is formed；
System control module (9) connection communication interface circuit (18), and upper control is linked by communication interface circuit (18)
Machine (19) processed and bidirectional energy-storage current converter (20), form battery management system and changed with upper control machine (19) and bidirectional energy-storage
Flow the communication link that device (20) carries out information exchange.
System control module (9) is according to each single battery voltage, temperature parameter and the batteries monitored in real time
String current parameters, analyze the state-of-charge and the voltage of each single battery and the uniformity of electricity of calculating accumulator, work as judgement
Alarmed immediately during battery exception into troubleshooting pattern；Otherwise, when deviation is more than or equal to the tolerance value and double of setting
At least bigger than normal and less than normal an each single battery magnitude of voltage or charge value larger to deviation is respectively greater than and less than battery
The average value of group string, system control module (9) carry out the two-way unidirectionally parallel active equalization control of multiple-unit sorting, i.e.,：
System control module (9) control unidirected discharge DC/DC modules (14) operation, and control electric-controlled switch drive circuit
(10) gate voltage value and charge value is controlled to be more than batteries string average voltage level by electric-controlled switch drive control line (16)
And at least one single battery positive pole of charge value and negative pole be connected respectively to unidirected discharge DC/DC modules (14) be connected it is low
Press on electric positive DC bus (72) and low pressure negative DC bus (8), unidirected discharge is controlled by system control module (9)
DC/DC modules (14) are discharged, and magnitude of voltage and charge value is more than the electric power storage of batteries string average voltage level and charge value
Pond monomer is discharged to less than or equal to batteries string average voltage level and charge value or reached the value of upper control machine (17) setting,
Unidirectional charging DC/DC modules (1) operation of simultaneity factor control module (9) control, and control electric-controlled switch drive circuit (10) logical
Cross electric-controlled switch drive control line (16) control gate voltage value and charge value is less than batteries string average voltage level and electricity
At least one single battery positive pole and the negative pole of value are connected respectively to the low pressure charging that unidirectional charging DC/DC modules (1) are connected
On positive DC bus (71) and low pressure negative DC bus (8), unidirectional charging DC/DC moulds are controlled by system control module (9)
Block (1) is charged, and makes magnitude of voltage and charge value is less than batteries string average voltage level and the single battery of charge value fills
Electricity is extremely more than or equal to the value of batteries string average voltage level and charge value or upper control machine (19) setting.
The utility model proposes a kind of two-way active equalizing battery management system based on multiple-unit sorting, using more
The unidirectional parallel active equalization method of two-way of unit sorting, using power supply of the batteries string as balanced electric power and " load ", together
When setting is more than or equal to magnitude of voltage in batteries string and charge value deviation multiple single batteries of tolerance value enter
Row the two-way unidirectional parallel actively balanced regulation and control of stream, more monomers independently monitor the high accuracy that can effectively realize battery operation
Monitoring in real time, charging and discharging currents control, the voltage of each single battery of batteries string and the electricity uniformity master of accurate science
It is dynamic effective balanced, voltage and the larger multiple batteries of electricity deviation can be made, realize and store during charging and discharging each time
Battery pack string is equalized, and is reached the uniformity management and control of effective batteries string voltage and electricity, is realized batteries to store energy system
Safe and healthy, the Effec-tive Function of system, energy-storage system, which is applied, has great positive effect.
Claims (1)
1. a kind of unidirectional active equalization battery management system of two-way based on multiple-unit sorting, mainly includes：Unidirectional charging DC/
DC modules (1), DC charging isolating transformer (2), high-voltage positive electrode dc bus (3), high voltage negative dc bus (4), electric power storage
Pond group string negative terminal (5), batteries string positive terminal (6), low pressure charging positive DC bus (71), low pressure discharge positive pole
Dc bus (72), low pressure negative DC bus (8), system control module (9), electric-controlled switch drive circuit (10), battery
Parameter collection module (11), system bus (12), system power supply module (13), unidirected discharge DC/DC modules (14), direct-current discharge
Isolating transformer (15), signal parameter collection wire harness (16), electric-controlled switch drive control line (17), communication interface circuit (18),
Upper control machine (19), bidirectional energy-storage current converter (20), the 1st single battery (S1), the 2nd single battery (S2), n-th store
Battery cell (Sn), the 1st automatically controlled gating switch (K1), the 2nd automatically controlled gating switch (K2), the n-th automatically controlled gating switch (Kn), the 1st
Automatically controlled gating switch charging anode connection terminal (a1), the 1st automatically controlled gating switch electric discharge anode connection terminal (b1), the 1st automatically controlled gating
Switch battery connection end (c1), the 2nd automatically controlled gating switch charging anode connection terminal (a2), the 2nd automatically controlled gating switch electric discharge just
Pole connection end (b2), the 2nd automatically controlled gating switch battery connection end (c2), the n-th automatically controlled gating switch charging anode connection terminal
(an), the n-th automatically controlled gating switch electric discharge anode connection terminal (bn), the n-th automatically controlled gating switch battery connection end (cn), the 1st store
Battery cell cathode voltage and temperature parameter collection sensor (T11), the 1st single battery cathode voltage and temperature parameter collection
Sensor (T12), the 2nd single battery cathode voltage and temperature parameter collection sensor (T21), the 2nd single battery positive pole
Voltage and temperature parameter collection sensor (T22), the n-th single battery cathode voltage and temperature parameter collection sensor (Tn1),
N-th single battery cathode voltage and temperature parameter collection sensor (Tn2), batteries string current parameters collection sensor
(Ti), wherein：
Batteries string in order arrange by the 1st single battery (S1), the 2nd single battery (S2), the n-th single battery (Sn)
Row, connect the negative pole of next battery, each single battery is just by the 1st single battery (S1) positive pole successively
Pole connects the batteries string of negative pole composition series connection and the 1st single battery of batteries string of next single battery
Negative pole (S11) access batteries string negative terminal (5), and the n-th single battery positive pole (Sn2) access of batteries string
Batteries string positive terminal (6), then led to respectively by batteries string negative terminal (5) and batteries string positive terminal (6)
Cross high pressure negative DC bus (4) and high-voltage positive electrode dc bus (3) is sequentially connected with DC charging isolating transformer (2) and unidirectional
Charge DC/DC modules (1), while batteries string negative terminal (5) and batteries string positive terminal (6) connect respectively it is two-way
The negative pole and positive pole of energy storage current converter (20) direct-flow input end, form the electricity that batteries string is charged as current-sharing power supply
Power supplies one-way power path and the energy storage charge-discharge electric power path of batteries string；
Batteries string in order arrange by the 1st single battery (S1), the 2nd single battery (S2), the n-th single battery (Sn)
Row, connect the negative pole of next battery, each single battery is just by the 1st single battery (S1) positive pole successively
Pole connects the batteries string of negative pole composition series connection and the 1st single battery of batteries string of next single battery
Negative pole (S11) access batteries string negative terminal (5), and the n-th single battery positive pole (Sn2) access of batteries string
Batteries string positive terminal (6), then led to respectively by batteries string negative terminal (5) and batteries string positive terminal (6)
Cross high pressure negative DC bus (4) and high-voltage positive electrode dc bus (3) is sequentially connected with direct-current discharge isolating transformer (15) and list
To electric discharge DC/DC modules (14), while batteries string negative terminal (5) and batteries string positive terminal (6) connect respectively
The negative pole and positive pole of bidirectional energy-storage current converter (20) direct-flow input end, form batteries string and discharged as current-sharing power supply
Electric power receive one-way power path and the energy storage charge-discharge electric power path of batteries string；
1st single battery negative pole (S11) connects low pressure negative DC bus (8) and the 1st single battery positive pole (S12) connects
The 1st automatically controlled gating switch battery connection end (c1) of the 1st automatically controlled gating switch (K1) is connect, and is stored by the 1st automatically controlled gating switch
Battery terminal connections (c1) access low pressure charging positive DC bus by the 1st automatically controlled gating switch charging anode connection terminal (a1)
(71), while low pressure charging positive DC bus (71) and low pressure negative DC bus (8) are respectively connected to the DC/DC moulds that unidirectionally charge
The low-pressure side positive pole and negative pole of block (1), form the charging power path that the 1st single battery (S1) is flowed；
1st single battery negative pole (S11) connects low pressure negative DC bus (8) and the 1st single battery positive pole (S12) connects
The 1st automatically controlled gating switch battery connection end (c1) of the 1st automatically controlled gating switch (K1) is connect, and is stored by the 1st automatically controlled gating switch
Battery terminal connections (c1) access low pressure discharge positive DC bus by the 1st automatically controlled gating switch electric discharge anode connection terminal (b1)
(72), while low pressure discharge positive DC bus (72) and low pressure negative DC bus (8) are respectively connected to unidirected discharge DC/DC moulds
The low-pressure side positive pole and negative pole of block (14), form the discharged power path that the 1st single battery (S1) is flowed；
2nd single battery negative pole (S21) connects low pressure negative DC bus (8) and the 2nd single battery positive pole (S22) connects
The 2nd automatically controlled gating switch battery connection end (c2) of the 2nd automatically controlled gating switch (K2) is connect, and is stored by the 2nd automatically controlled gating switch
Battery terminal connections (c2) access low pressure charging positive DC bus by the 2nd automatically controlled gating switch charging anode connection terminal (a2)
(71), while low pressure charging positive DC bus (71) and low pressure negative DC bus (8) are respectively connected to the DC/DC moulds that unidirectionally charge
The low-pressure side positive pole and negative pole of block (1), form the charging power path that the 2nd single battery (S2) is flowed；
2nd single battery negative pole (S21) connects low pressure negative DC bus (8) and the 2nd single battery positive pole (S22) connects
The 2nd automatically controlled gating switch battery connection end (c2) of the 2nd automatically controlled gating switch (K2) is connect, and is stored by the 2nd automatically controlled gating switch
Battery terminal connections (c2) access low pressure discharge positive DC bus by the 2nd automatically controlled gating switch electric discharge anode connection terminal (b2)
(72), while low pressure discharge positive DC bus (72) and low pressure negative DC bus (8) are respectively connected to unidirected discharge DC/DC moulds
The low-pressure side positive pole and negative pole of block (14), form the discharged power path that the 2nd single battery (S2) is flowed；
N-th single battery negative pole (Sn1) connects low pressure negative DC bus (8) and the n-th single battery positive pole (Sn2) connects
The n-th automatically controlled gating switch battery connection end (cn) of the n-th automatically controlled gating switch (Kn) is connect, and is stored by the n-th automatically controlled gating switch
Battery terminal connections (cn) access low pressure charging positive DC bus by the n-th automatically controlled gating switch charging anode connection terminal (an)
(71), while low pressure charging positive DC bus (71) and low pressure negative DC bus (8) are respectively connected to the DC/DC moulds that unidirectionally charge
The low-pressure side positive pole and negative pole of block (1), form the charging power path that the n-th single battery (Sn) is flowed；
N-th single battery negative pole (Sn1) connects low pressure negative DC bus (8) and the n-th single battery positive pole (Sn2) connects
The n-th automatically controlled gating switch battery connection end (cn) of the n-th automatically controlled gating switch (Kn) is connect, and is stored by the n-th automatically controlled gating switch
Battery terminal connections (cn) access low pressure discharge positive DC bus by the n-th automatically controlled gating switch electric discharge anode connection terminal (bn)
(72), while low pressure discharge positive DC bus (72) and low pressure negative DC bus (8) are respectively connected to unidirected discharge DC/DC moulds
The low-pressure side positive pole and negative pole of block (14), form the discharged power path that the n-th single battery (Sn) is flowed；
System control module (9) connects Bidirectional charging-discharging DC/DC modules (1) by system bus (12) respectively, electric-controlled switch drives
Dynamic circuit (10), accumulator parameter acquisition module (11), unidirected discharge DC/DC modules (14), form system monitoring and Quality Initiative
Road；
Electric-controlled switch drive circuit (10) connects the 1st automatically controlled gating switch respectively by electric-controlled switch drive control line (17)
(K1), the 2nd automatically controlled gating switch (K2), the n-th automatically controlled gating switch (Kn), it is straight to form battery positive voltage connection low pressure charging positive pole
Flow the controlled gating control driving link of bus (71) or battery connection low pressure discharge negative DC bus (72)；
Accumulator parameter acquisition module (11) gathers wire harness (16) by signal parameter and connects the 1st single battery negative electricity respectively
Pressure and temperature parameter collection sensor (T11), the 1st single battery cathode voltage and temperature parameter collection sensor (T12), the
2 single battery cathode voltages and temperature parameter collection sensor (T21), the 2nd single battery cathode voltage and temperature parameter
Gather sensor (T22), the n-th single battery cathode voltage and temperature parameter collection sensor (Tn1), the n-th single battery
Cathode voltage and temperature parameter collection sensor (Tn2) and batteries are formed and stored into current parameters collection sensor (Ti)
Cell voltage and the information link of temperature parameter collection；
System power supply module (13) connects Bidirectional charging-discharging DC/DC modules (1), unidirected discharge DC/DC modules (14) and is respectively
Control module of uniting (9), form the energizing power path of battery management system；
System control module (9) connection communication interface circuit (18), and upper control machine is linked by communication interface circuit (18)
(19) filled with bidirectional energy-storage current converter (20), composition battery management system with upper control machine (19) and the bidirectional energy-storage change of current
Put the communication link that (20) carry out information exchange.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720801646.9U CN206850495U (en) | 2017-07-05 | 2017-07-05 | A kind of unidirectional active equalization battery management system of two-way based on multiple-unit sorting |
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| CN201720801646.9U CN206850495U (en) | 2017-07-05 | 2017-07-05 | A kind of unidirectional active equalization battery management system of two-way based on multiple-unit sorting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217400A (en) * | 2017-07-05 | 2019-01-15 | 周锡卫 | A kind of unidirectional active equalization battery management system of two-way and control method based on multiple-unit sorting |
| CN109378882A (en) * | 2018-11-30 | 2019-02-22 | 中国联合网络通信集团有限公司 | A kind of base station energy resource system and base station |
| CN112677822A (en) * | 2020-12-15 | 2021-04-20 | 台州市路桥鼎新阳光机电科技有限公司 | Battery management system |
-
2017
- 2017-07-05 CN CN201720801646.9U patent/CN206850495U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217400A (en) * | 2017-07-05 | 2019-01-15 | 周锡卫 | A kind of unidirectional active equalization battery management system of two-way and control method based on multiple-unit sorting |
| CN109217400B (en) * | 2017-07-05 | 2024-04-09 | 周锡卫 | Control method of double-path unidirectional active equalization storage battery management system based on multi-unit sorting |
| CN109378882A (en) * | 2018-11-30 | 2019-02-22 | 中国联合网络通信集团有限公司 | A kind of base station energy resource system and base station |
| CN112677822A (en) * | 2020-12-15 | 2021-04-20 | 台州市路桥鼎新阳光机电科技有限公司 | Battery management system |
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