CN206272312U - A kind of DC power system with batteries in parallel connection module - Google Patents
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- CN206272312U CN206272312U CN201621368961.9U CN201621368961U CN206272312U CN 206272312 U CN206272312 U CN 206272312U CN 201621368961 U CN201621368961 U CN 201621368961U CN 206272312 U CN206272312 U CN 206272312U
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Abstract
The utility model discloses a kind of DC power system with batteries in parallel connection module, including Alternating Current Unit, be connected to multichannel AC inlet wire on ac bus by the Alternating Current Unit, for several batteries in parallel connection modules parallel with one another provide alternating current, the batteries in parallel connection module by after convert alternating current for dc bus provides direct current, each DC feeder is connected on dc bus by miniature circuit breakers, from dc bus power taking, to the load supplying of this feeder line；Each batteries in parallel connection module configures a group storage battery, and when ac bus power down, batteries in parallel connection module passes through the battery power taking for configuring, and to dc bus out-put supply；Batteries in parallel connection module connects supervising device by respective port, feeds back respective working condition.The utility model can effectively ensure that the normal work of DC power system.
Description
Technical field
The utility model is related to a kind of DC power system with batteries in parallel connection module.
Background technology
Battery as transformer station/power plant's DC power system core, its reliability directly determines direct current
The reliability that origin system is powered.Traditional DC power-supply system is together in series by more piece battery and to constitute batteries and use
's.
And battery is used in series, have a disadvantage that
1) cell batteries fault impact whole group output.Internal storage battery chemically reacts or Ion transfer is difficult to artificially accurately
Control, serial number is more, and monomer failure occurrence probability is bigger.
2) storage battery parameter must be consistent.Different brands, different type, the electric power storage of even same producer's different batches
Pond can not be used in mixed way, the reduction of battery utilization ratio.
3) batteries dilatation is difficult, generally requires replacing whole group battery.
4) batteries can only whole group redundant configuration, redundant configuration high cost.
5) batteries cannot realize online full capacity core appearance, on-bne repair, replacing.
Generally solved the above problems using batteries in parallel connection module, as shown in figure 1, still, existing batteries in parallel connection module is worked as
During exchange input dead electricity, battery is supplied by the first DC transfer circuit and the second DC transfer circuit two-stage DC converting to load
Electricity, a part of efficiency can be all lost per one-level DC converting, and whole efficiency is relatively low；Overload capability is poor；In load short circuits,
The short circuit current that DC transfer circuit is provided is smaller, it is impossible to which the breaker of Reliable guarantee fault loop reliably disconnects, and causes failure
Scope expands.
Meanwhile, existing batteries in parallel connection module is just for single-unit 12V lead-acid accumulators, and accommodation is narrow.It is typically no to match somebody with somebody
Put Storage Battery Monitor Unit, it is impossible to which the parameter such as temperature, single battery voltage, single battery internal resistance to battery is monitored.
Protection, monitoring to batteries in parallel connection module, control function refer to less, function not enough improve and DC transfer circuit efficiency compared with
It is low.
Therefore, it is badly in need of a kind of highly reliable, easy dilatation, the DC power system of easy care.
Utility model content
The utility model is in order to solve the above problems, it is proposed that a kind of DC power system with batteries in parallel connection module,
The utility model can realize that single batteries in parallel connection module failure does not influence the output of other batteries in parallel connection modules, different batteries in parallel connection
The battery of module configuration need not be consistent, while there was only the conversion of 1 level power supply between power input and DC output end
Module, improves overall transformation efficiency, and load is directly connected to by DC converter, significantly improves overload capability.
To achieve these goals, the utility model is adopted the following technical scheme that：
A kind of DC power system with batteries in parallel connection module, including Alternating Current Unit, the Alternating Current Unit
Multichannel AC inlet wire is connected on ac bus, it is described for several batteries in parallel connection modules parallel with one another provide alternating current
Batteries in parallel connection module is by, for dc bus provides direct current, each DC feeder is connected to direct current by miniature circuit breakers after convert alternating current
On bus, from dc bus power taking, to the load supplying of this feeder line；Each batteries in parallel connection module configures a group storage battery, works as friendship
During stream bus power down, batteries in parallel connection module passes through the battery power taking for configuring, and to dc bus out-put supply；
The batteries in parallel connection module, including be sequentially connected filter circuit, rectification circuit, PFC circuit of power factor correction,
First DC/DC converters, energy-storage travelling wave tube and current limiting element, the convert alternating current that will be input into are direct current output；
The output end of the PFC circuit of power factor correction connects battery, described first by the 2nd DC/DC converters
The output end of DC/DC converters connects the battery by the 3rd DC/DC converters；
The batteries in parallel connection module connects supervising device by respective port, feeds back respective working condition.
The output end of the PFC circuit of power factor correction connects battery, the 2nd DC/ by the 2nd DC/DC converters
DC converters charge a battery when AC power is normal；
The battery by the 3rd DC/DC converters, the dc source boosting inverter that battery is input into for 110V or
220V DC voltages, the output end with a DC/DC converters is in parallel, and through energy-storage travelling wave tube and current limiting element, output is defeated to module
Go out end, during normal work, the 3rd DC/DC converters as a DC/DC converters Hot Spare；During overload, the 3rd DC/DC
Converter provides electric current output, with a common bringing onto load of DC/DC converters.
The PFC circuit of power factor correction, a DC/DC converters, the 2nd DC/DC converters and the 3rd DC/DC become
Parallel operation is all connected with module monitors unit, the monitoring of receiving module monitoring unit, protection, control, and by module monitors unit with
Host computer is communicated.
The battery is connected with battery monitor unit, gathers voltage, temperature, internal resistance and the current information of battery, carries
Power supply cell monitoring and protection.
Preferably, the battery is battery pack or battery, and battery pack includes the battery of multi-section serial.
The voltage range of the battery is 10-56V.
Preferably, a DC/DC converters, the 2nd DC/DC converters and the 3rd DC/DC converters use LLC
Resonance potential type topology.
Preferably, the module monitors unit is PFC circuit of power factor correction, a DC/DC converters, the 2nd DC/
DC converters and the 3rd DC/DC converters provide output over-voltage protection, output low-voltage protection, output overcurrent protection, mistake
Temperature protection and output end short-circuit protection.
Preferably, the module monitors unit monitoring PFC circuit of power factor correction, a DC/DC converters, second
The input voltage of DC/DC converters and the 3rd DC/DC converters, output voltage and output current.
Preferably, the single battery voltage of battery monitor unit monitoring battery, battery total voltage, battery current,
Battery remaining power and/or cell operating status.
Preferably, the filter circuit is EMI filter circuit.
Preferably, the battery of different batteries in parallel connection module configurations is similar and different.
Based on the method for work of above-mentioned DC power system, when exchange has electricity condition and loads normal, exchange input warp
DC voltage A is transformed to after the treatment of filter circuit, rectification circuit and PFC circuit of power factor correction, through a DC/DC converters
110V or 220V direct voltage outputs to internal direct current bus are transformed to, by energy-storage travelling wave tube and current limiting element, output to outside
Dc bus, there is provided load is used, while DC voltage A is the direct current of 10-56V through the conversion step-down of the 2nd DC/DC converters
Source is charged to battery, and cell voltage is transformed to 110V or 220V DC voltages through the 3rd DC/DC converter boosts, output
To internal direct current bus, as the Hot Spare of a DC/DC converters.
Based on the method for work of above-mentioned DC power system, when power failure state is exchanged, a DC/DC converters and second
DC/DC converters do not work, and cell voltage is 110V or 220V DC voltages, output through the conversion boosting of the 3rd DC/DC converters
To internal direct current bus, by energy-storage travelling wave tube and current limiting element, output to external dc bus, there is provided load is used.
Based on the method for work of above-mentioned DC power system, there is electricity in exchange, but during module overload operation, a DC/
DC converters and the 3rd DC/DC converters work simultaneously, while output current is to internal direct current bus, by energy-storage travelling wave tube and limit
Fluid element, output to external dc bus, there is provided load is used.
The 2nd DC/DC converters carry out Charge Management according to the charging curve of setting to battery.
When the battery is lead-acid accumulator, charged using three sections of constant-current charge, modified constant-voltage charge and floating charging bent
Line is charged；When battery is lithium ion battery, charged using Multi-section constant current charging curve.
The beneficial effects of the utility model are：
(1) the utility model can not influenceed using multiple batteries in parallel connection modules, therefore single batteries in parallel connection module failure
Other batteries in parallel connection modules are exported, and ensure that the normal work of whole dc source；
(2) battery of different batteries in parallel connection modules configuration of the present utility model need not be consistent, different batches, no
Can be used with the battery of producer, in addition newly, used batteries can use with, battery utilization ratio is high；
(3) batteries dilatation of the present utility model is simple, it is only necessary to increase batteries in parallel connection module, redundant configuration letter
Single, redundant configuration low cost；
(4) batteries of the present utility model can full capacity core appearance, on-bne repair, replacing online；
(5) two alternating current inlet wires of connection of the present utility model, when exchanging dead electricity or phase shortage all the way wherein, automatically switch to
Another road alternating current inlet wire, improves the power supply reliability of ac bus；
(6) there was only 1 level power supply between batteries in parallel connection modular power source input described in the utility model and DC output end
Conversion module, compared with existing design scheme, improves overall transformation efficiency；
(7) the DC/DC converters of batteries in parallel connection module the described in the utility model and the 3rd DC/DC converters connect simultaneously
Onto load, overload capability is significantly improved, and in load short circuits, 2 DC transfer circuits can provide short circuit current, electricity
Stream fan-out capability is 2 times of prior art, and the breaker of guarantee fault loop that can be more reliable disconnects, it is to avoid fault coverage expands
Greatly；
(8) battery types that batteries in parallel connection module matches somebody with somebody battery pack can be lead-acid battery, lithium ion battery, lead carbon battery
Deng accommodation is wider, except basic electric energy translation function is completed, also provides perfect protection, monitoring, control function；
(9) batteries in parallel connection module is configured with battery monitor unit, in battery temperature, single battery voltage, single battery
The parameters such as resistance are monitored.The effective reliability for ensureing power-supply system, meanwhile, during being battery charge and discharge management,
More precise control charge-discharge parameter provides foundation.In addition, for the estimation of more accurate battery capacity provides data supporting.
Brief description of the drawings
Fig. 1 is prior art batteries in parallel connection module frame chart；
Fig. 2 is system structure diagram of the present utility model；
Fig. 3 is batteries in parallel connection modular structure schematic diagram of the present utility model.
Specific embodiment：
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2 batteries are connected by original more piece battery, multiple batteries in parallel connection wired in parallel are changed to.
Two alternating current inlet wires, by Alternating Current Unit, are connected on ac bus.The effect of Alternating Current Unit is：
When wherein exchanging dead electricity or phase shortage all the way, another road alternating current inlet wire is automatically switched to, improve the power supply reliability of ac bus.
Batteries in parallel connection module power taking from ac bus of 1 or more than 1, by after conversion, output dc source is arrived
Dc bus.Each batteries in parallel connection module is parallel relationship.
Each DC feeder is connected on dc bus by miniature circuit breakers, and from dc bus power taking, the load to this feeder line is supplied
Electricity.The effect of miniature circuit breakers is, during normal work, can manually throw/cut load.This feeder line be short-circuited or excessively stream etc. therefore
During barrier, protection, cuts away load fault in time, it is ensured that the normal power supply of whole DC power system.
Supervising device is connected by port with each parallel module, and each parallel module working condition is monitored, and root
It is controlled according to default logic.
The core of the system is batteries in parallel connection module and supervising device.
1) mode of operation of batteries in parallel connection module：
System includes 1 or 1 more parallel battery module, and each batteries in parallel connection module is connected to friendship by power switch
Stream bus, after all of batteries in parallel connection module output end parallel connection, is connected to dc bus, is the various equipment of transformer station/power plant
Power supply.
Each batteries in parallel connection module configures a group storage battery, and when ac bus power down, batteries in parallel connection module is by configuring
Battery power taking, and to dc bus out-put supply.
When ac bus have electricity, batteries in parallel connection module is charged by ac bus power taking, the battery to configuration, together
When, to dc bus out-put supply.
2) supervising device mode of operation
Supervising device is connected by 485 or CAN with each batteries in parallel connection module, monitors the operation of each batteries in parallel connection module
Situation, alarms unusual condition.And according to matching somebody with somebody the state-of-charge (dump energy of battery in each batteries in parallel connection module
SOC), the power output of each batteries in parallel connection module is coordinated.Meanwhile, the battery health that each batteries in parallel connection module is matched somebody with somebody is monitored,
Batteries in parallel connection module is given to safeguard, change suggestion.When the maintenance of certain batteries in parallel connection module, replacing in system, it is dynamically adjusted
The output of his batteries in parallel connection module, it is ensured that the reliability service of whole DC power system.
As shown in figure 3, a kind of batteries in parallel connection module is using 3 schemes of DC transfer circuit, program global design is excellent
Point：
1) there was only the conversion of 1 level power supply between power input and DC output end, compared with existing design scheme, improve entirety
Conversion efficiency；
2) 2 DC converters (DC/DC1 and DC/DC3) are directly connected in load, overload capability is significantly improved；
3) 2 DC converters (DC/DC1 and DC/DC3) are directly connected in load, in load short circuits, 2 direct currents
Translation circuit can provide short circuit current, and current output capability is 2 times of prior art, and guarantee failure that can be more reliable is returned
The breaker on road disconnects, it is to avoid fault coverage expands.
1st, batteries in parallel connection module described in the utility model, the battery for using, can be used 10-56V voltage ranges battery or
Battery pack.It can be the battery pack of single battery, or multiple batteries series connection.Battery types can be lead-acid battery, lithium
Ion battery, lead carbon battery etc..Accommodation is wider.
2nd, batteries in parallel connection module described in the utility model, it is optional with battery monitor unit, to battery temperature, single battery electricity
The parameters such as pressure, single battery internal resistance are monitored.The effective reliability for ensureing power-supply system.Meanwhile, it is battery charge and discharge
During management, more precise control charge-discharge parameter provides foundation.In addition, for the estimation of more accurate battery capacity is provided
Data supporting.
3rd, batteries in parallel connection module described in the utility model, except basic electric energy translation function is completed, also provides perfect guarantor
Shield, monitoring, control function.
3.1st, defencive function
1) module output over-voltage protection
2) module output low-voltage protection
3) module output overcurrent protection
4) module output end short-circuit protection
5) module overheat protector
3.2nd, monitoring function
1) AC-input voltage monitoring
2) module output voltage monitoring
3) module output current monitoring
4) battery total voltage monitoring
5) single battery voltage monitoring
6) battery current monitoring monitoring
7) battery remaining power monitoring
8) cell operating status monitoring
9) battery temperature monitoring
3.3rd, control function
Manual powered control
Manual control of discharge
Charging process is managed
Discharge process is managed
Hold from kinetonucleus and control
Manual core holds control
In batteries in parallel connection module described in the utility model, three DC-DC modules of use are all opened up using LLC resonance potential types
Flutter, controlled using DSP digital soft switchs algorithm.Above topology and algorithm switching loss are low, and energy conversion efficiency is high, algorithm control
Flexibly.
4th, battery allocation plan
Recommend 3 battery allocation plans
4.1st, scheme 1：Battery pack is realized using single-unit 12V lead-acid batteries.
1) this battery for configuring the configuration of each batteries in parallel connection inside modules does not exist series connection situation, can be to greatest extent
Avoid the shortcoming of series connection battery.
2) in 110kV transforming plant DC power-supply system applications, need to be reached directly using 10 several batteries in parallel connection wired in parallel
The capacity requirement of power supply is flowed, using the configuration of " N+1 " redundancy, used as redundancy backup, redundant configuration cost is most for 1 module of multi-configuration
It is low.
3) there is batteries in parallel connection module more, the imperfect problem of economy of configuration in the program.
4.2nd, scheme 2：Battery pack realizes that battery voltage is 24V using 2 section 12V lead-acid batteries series connection.
1) this configuration cell voltage is high, and the no-load voltage ratio of DC/DC2 and DC/DC3 is relatively low, and conversion efficiency is higher.
2) capacity of single batteries in parallel connection module increased 1 times compared to the situation using single-unit 12V batteries.Become in 110kV
It is the capacity requirement that can reach dc source using 5,6 batteries in parallel connection wired in parallel in electric station DC power-supply system application.5、
6 wired in parallel, using the configuration of " N+1 " redundancy, 1 module of multi-configuration is used as redundancy backup, 20% or so redundant configuration
Cost, redundant configuration moderate cost.
3) 2 batteries series connection, wherein 1 piece of failure, 2 pieces of batteries need while replacing, battery integrated cost is than single-unit 12V electricity
Pond scheme slightly has raising.
4.3rd, scheme 3：Battery pack realizes that battery voltage is 48V using 4 section 12V lead-acid batteries series connection.
1) this configuration cell voltage highest, the no-load voltage ratio of DC/DC2 and DC/DC3 is minimum, conversion efficiency highest.
2) capacity of single batteries in parallel connection module increased 3 times compared to the situation using single-unit 12V batteries.Become in 110kV
It is the capacity requirement that can reach dc source using 3 batteries in parallel connection wired in parallel in electric station DC power-supply system application.Using
The configuration of " N+1 " redundancy, 1 module of multi-configuration is used as redundancy backup, and 30% or so redundant configuration cost is relatively higher.
3) 4 batteries series connection, wherein 1 piece of failure, 4 pieces of batteries need while replacing, battery integrated cost highest.
Above-mentioned 3 schemes of Integrated comparative, the moderate cost of scheme 2, module number is moderate, it is proposed that preferential to select.
5th, batteries in parallel connection modular structure form allocation plan
Battery, battery monitor unit, energy-storage travelling wave tube, current limiting element, this 4 parts of batteries in parallel connection module are wherein
One of or all, can according to structure, size requirement it is external, be connected with batteries in parallel connection module by cable, it is also possible to whole in
Put.
6th, batteries in parallel connection module working method is introduced
Module work is divided into three state：S1 exchanges have electricity condition, S2 to exchange power failure state, S3 exchanges and have electricity, and module is excessively negative
Carry running status.
In S1 states：Module by AC power be input into (AC220V or AC380V), through EMI filter circuit, rectification circuit and
DC voltage 1 (voltage magnitude and AC power input voltage virtual value phase are transformed to after the treatment of PFC circuit of power factor correction
When), the output of DC110V or DC220V DC voltages 2 is transformed to internal direct current bus through DC/DC1, by energy-storage travelling wave tube and limit
Fluid element, output to external dc bus, there is provided load is used.DC voltage 1 is DC10- through DC/DC2 conversion step-downs simultaneously
The dc source of 56V is charged to battery/battery pack.Cell voltage is that DC110V or DC220V is straight through DC/DC3 boosting inverters
Stream voltage, output to internal direct current bus, as the Hot Spare of DC/DC1.The VD setting valve of DC/DC3 compares DC/
The VD setting valve of DC1 is lower slightly, thus when AC power have electricity and load it is normal when, dc bus mainly by
DC/DC1 powers, and DC/DC3 is intended only as Hot Spare, will not external output current.All have inside DC/DC1 and DC/DC3 anti-down
Circuit is filled, can only internally dc bus output current, it is impossible to by internal direct current bus input current.
In S2 states：Exchange dead electricity, DC/DC1 and DC/DC2 do not work, and cell voltage is through DC/DC3 conversion boostings
DC110V or DC220V DC voltages, output to internal direct current bus, by energy-storage travelling wave tube and current limiting element, output is straight to outside
Stream bus, there is provided load is used.
In S3 states, exchange has electricity, module overload operation, DC/DC1 and DC/DC3 work simultaneously, while output current
To internal direct current bus, by energy-storage travelling wave tube and current limiting element, output to external dc bus, there is provided load is used.
Module monitors unit, is made up of, to PFC PFCs microcontroller, Acquisition Circuit, control circuit, algorithm
Circuit, DC/DC1, DC/DC2, DC/DC3 etc. are monitored and control, and transmit various signals and order with upper machine communication.
DC/DC1, DC/DC2 and DC/DC3 are topological using LLC resonance potentials type, using DSP digital soft switch algorithm controls
System, completes efficient voltage conversion and energy transmission, and can upload DC/DC module working conditions with module monitors unit communication
Information, battery information etc., and the control of receiving module monitoring unit.
DC/DC2 inside dsp controller is provided simultaneously with battery Charge Management function, and control DC/DC2 fills according to setting
Electric curve carries out Charge Management to battery.General lead-acid accumulator uses constant-current charge --->Modified constant-voltage charge --->It is floating
The three sections of charging curves that charge are charged.Lithium ion battery is charged using Multi-section constant current charging curve.
Energy-storage travelling wave tube, is typically made up of electric power electrochemical capacitor or super capacitor, usually stores energy, occurs in load-side
During impact load, there is provided high current in short-term, DC/DC units are prevented because impact load causes overcurrent protection；Meanwhile, it is short in load-side
Lu Shi, because circuit breaker trip needs larger electric current, and needs the lasting regular hour, and DC/DC converters cannot be carried individually
For the circuit breaker trip electric current, DC/DC overcurrent protections may be caused.At this time, high current in short-term is provided by energy-storage travelling wave tube, is driven
Circuit breaker trip, after circuit breaker trip, DC/DC modules can continue to normal work, for normal load provides working power.
Current limiting element, is made up of current-limiting circuit and flow equalizing circuit.Load it is normal when, play multiple batteries in parallel connection modules it
Between current balance effect；In load-side short circuit, the energy-storage travelling wave tube velocity of discharge is controlled, (should with the controllable electric flow valuve that can be adjusted
Electric current need to be more than circuit breaker trip electric current) electric discharge, it is ensured that reliable fault trip is realized with minimum energy storage cost.
Battery monitor unit is a selectable unit, is mainly used in configuring the situation of battery pack, for each list in battery pack
The monitoring of the states such as voltage, internal resistance, the temperature of batteries, for the charging process control and discharge process control of battery pack provide control
Parameter foundation processed.Meanwhile, for the estimation of more accurate battery capacity provides data supporting.
It is not new to this practicality although above-mentioned be described with reference to accompanying drawing to specific embodiment of the present utility model
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Various modifications or deform still in protection model of the present utility model that field technique personnel make by need not paying creative work
Within enclosing.
Claims (6)
1. a kind of DC power system with batteries in parallel connection module, it is characterized in that：Including Alternating Current Unit, the exchange is matched somebody with somebody
Be connected to multichannel AC inlet wire on ac bus by electric unit, for several batteries in parallel connection modules parallel with one another provide exchange
Electricity, the batteries in parallel connection module is by, for dc bus provides direct current, each DC feeder passes through miniature circuit breakers after convert alternating current
It is connected on dc bus, from dc bus power taking, to the load supplying of this feeder line；Each batteries in parallel connection module configures one group of electric power storage
Pond, when ac bus power down, batteries in parallel connection module passes through the battery power taking for configuring, and to dc bus out-put supply；
The batteries in parallel connection module, including filter circuit, rectification circuit, PFC circuit of power factor correction, first being sequentially connected
DC/DC converters, energy-storage travelling wave tube and current limiting element, the convert alternating current that will be input into are direct current output.
2. a kind of DC power system with batteries in parallel connection module as claimed in claim 1, it is characterized in that：The PFC work(
The output end of rate factor correcting circuit connects battery by the 2nd DC/DC converters, and the 2nd DC/DC converters are in AC power
Charged a battery when normal；
By the 3rd DC/DC converters, the dc source boosting inverter that battery is input into is 110V or 220V to the battery
DC voltage, the output end with a DC/DC converters is in parallel, and through energy-storage travelling wave tube and current limiting element, module output end is arrived in output,
During normal work, the 3rd DC/DC converters as a DC/DC converters Hot Spare；During overload, the 3rd DC/DC conversion
Device provides electric current output, with a common bringing onto load of DC/DC converters.
3. a kind of DC power system with batteries in parallel connection module as claimed in claim 1, it is characterized in that：The PFC work(
Rate factor correcting circuit, a DC/DC converters, the 2nd DC/DC converters and the 3rd DC/DC converters are all connected with module monitors
Unit, the monitoring of receiving module monitoring unit, protection, control, and communicated with host computer by module monitors unit.
4. a kind of DC power system with batteries in parallel connection module as claimed in claim 1, it is characterized in that：The battery
Battery monitor unit is connected with, voltage, temperature, internal resistance and the current information of battery is gathered, there is provided battery cell monitoring and protection.
5. a kind of DC power system with batteries in parallel connection module as claimed in claim 1, it is characterized in that：Described first
DC/DC converters, the 2nd DC/DC converters and the 3rd DC/DC converters are using LLC resonance potentials type topology.
6. a kind of DC power system with batteries in parallel connection module as claimed in claim 1, it is characterized in that：The module prison
Control unit is PFC circuit of power factor correction, a DC/DC converters, the 2nd DC/DC converters and the 3rd DC/DC converters
Output over-voltage protection, output low-voltage protection, output overcurrent protection, overheat protector and output end short-circuit protection are provided；
Or the module monitors unit monitoring PFC circuit of power factor correction, a DC/DC converters, the 2nd DC/DC converters
Input voltage, output voltage and output current with the 3rd DC/DC converters.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621368961.9U CN206272312U (en) | 2016-12-13 | 2016-12-13 | A kind of DC power system with batteries in parallel connection module |
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| CN201621368961.9U CN206272312U (en) | 2016-12-13 | 2016-12-13 | A kind of DC power system with batteries in parallel connection module |
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| CN206272312U true CN206272312U (en) | 2017-06-20 |
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| CN (1) | CN206272312U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591832A (en) * | 2017-10-17 | 2018-01-16 | 深圳市泰昂能源科技股份有限公司 | Energy storage managing device and energy storage monitor system |
| CN113097978A (en) * | 2021-04-07 | 2021-07-09 | 贵州电网有限责任公司 | Bus fault discrimination method for parallel direct-current power supply system |
| CN113422363A (en) * | 2021-06-30 | 2021-09-21 | 郑州易能科技有限公司 | Intelligent parallel direct-current power supply management system |
| CN114270657A (en) * | 2020-07-16 | 2022-04-01 | 华为数字能源技术有限公司 | Battery pack and energy storage system |
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2016
- 2016-12-13 CN CN201621368961.9U patent/CN206272312U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591832A (en) * | 2017-10-17 | 2018-01-16 | 深圳市泰昂能源科技股份有限公司 | Energy storage managing device and energy storage monitor system |
| CN114270657A (en) * | 2020-07-16 | 2022-04-01 | 华为数字能源技术有限公司 | Battery pack and energy storage system |
| CN113097978A (en) * | 2021-04-07 | 2021-07-09 | 贵州电网有限责任公司 | Bus fault discrimination method for parallel direct-current power supply system |
| CN113422363A (en) * | 2021-06-30 | 2021-09-21 | 郑州易能科技有限公司 | Intelligent parallel direct-current power supply management system |
| CN113422363B (en) * | 2021-06-30 | 2022-10-28 | 郑州易能科技有限公司 | Intelligent parallel direct-current power supply management system |
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