CN109560585A - Battery over-discharge restarting circuit, energy storage device and control method - Google Patents
Battery over-discharge restarting circuit, energy storage device and control method Download PDFInfo
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- CN109560585A CN109560585A CN201811496119.7A CN201811496119A CN109560585A CN 109560585 A CN109560585 A CN 109560585A CN 201811496119 A CN201811496119 A CN 201811496119A CN 109560585 A CN109560585 A CN 109560585A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 206010033799 Paralysis Diseases 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a battery over-discharge restarting circuit, an energy storage device and a control method, wherein the battery over-discharge restarting circuit comprises a battery, a bidirectional converter and a battery manager, wherein the bidirectional converter and the battery manager are connected with the battery; the self-rescue circuit can effectively solve the starting problem of the energy storage device after over-discharge, realizes the self-rescue function by adding a small number of components on the basis of the existing circuit of the energy storage device, and has the advantages of strong self-adaptability, low cost, simplicity, convenience and easiness in operation.
Description
Technical field
Circuit is restarted the present invention relates to power energy storing device more particularly to a kind of battery over-discharge and using the circuit
The control method of energy storage device and the circuit.
Background technique
Power energy storing device can store electric energy, give when needed using.The component of power energy storing device core
It is battery, during being recycled for a long time, often since battery exception itself or self discharge cause battery to occur sternly
Over-discharge again, the quantity of electric charge (SOC) is lower than the threshold value of setting, and battery manager (BMS) enters serious over-discharge logic at this time, disconnects external
All output, cause entire energy storage device that can not obtain electric, can not both discharge, can not also charge, paralyse state.
Therefore need in the industry to seek it is a kind of reasonably restart circuit, guarantee that battery pack also can be by this in serious over-discharge
Circuit charges the battery, and power energy storing device is made to reenter normal condition.
Summary of the invention
In order to solve the defect for being easy to cause cell apparatus to paralyse when battery over-discharge in the prior art, the present invention proposes one kind
Circuit, energy storage device and control method are restarted in battery over-discharge.
The technical solution adopted by the present invention is that designing a kind of battery over-discharge restarts circuit, including battery, the double of battery are connected
To current transformer and battery manager, one is concatenated between the cathode power supply line or anode power cord of battery connection battery manager
It is cold-started button Ks, the cold start-up button Ks is in parallel with power switch K3, the battery manager when being cold-started button Ks closure
Battery capacity is detected, is controlled according to battery capacity to bidirectional converter and power switch K3.
A power module, the cold start-up button Ks and power switch K3 are concatenated between the battery and battery manager
It is serially connected on cathode power supply line or the anode power cord between battery and power module.
The power module uses Switching Power Supply.
Positive electrode bus and negative electrode bus are equipped between the battery and bidirectional converter, connect master in the positive electrode bus
Positive relay, main negative relay of connecting on the negative electrode bus, main positive relay and negative electrode bus are by the battery manager
Control.
The power switch K3 uses electronic switch or relay.
The power switch K3 uses relay, after a pair of of normally opened contact of the relay and work light block coupled in series
It is connected between two power inputs of battery manager.
The bidirectional converter uses bidirectional, dc current transformer.
The present invention also designs a kind of energy storage device, and above-mentioned battery over-discharge is used to restart circuit.
The present invention also designs the control method that circuit is restarted in a kind of above-mentioned battery over-discharge comprising following steps: step 10.
Closure cold start-up button Ks, battery manager must establish beginning detection battery capacity by cable；Step 20. judges whether battery capacity was greater than
Threshold value is put, if so, then controlling main positive relay K1, main negative relay K2 closure, and turn-on power switch K3, then terminates to start
Into normal mode of operation；If not, being transferred to step 30 into charge mode；Step 30. sends charging to bidirectional converter and refers to
It enables, terminates to launch into normal mode of operation when battery capacity is more than or equal to over-discharge threshold value.
The step 30 include: step 31. judge be cold-started button Ks closing time whether be greater than delay threshold, if not,
10 are then gone to step, if so, then going to step 32；The main positive relay K1 of step 32. battery manager control, main negative relay K2 are closed
It closes, and turn-on power switch K3；Step 33. battery manager sends charging instruction to bidirectional converter；Step 34. judges battery
Whether electricity is greater than over-discharge threshold value, if not, 33 are gone to step, if so, then stopping sending charging instruction to bidirectional converter.
Delay threshold in the step 31 is 5 seconds.The present invention can effectively solve the problem that the starting after energy storage device over-discharge
Problem increases a small amount of component on the basis of energy storage device available circuit and realizes self-rescue function, has adaptivity strong, cost
It is low, succinct convenient, easily operated advantage.
Detailed description of the invention
Below with reference to embodiment and attached drawing, the present invention is described in detail, in which:
Fig. 1 is general principles block diagram；
Fig. 2 is present pre-ferred embodiments functional block diagram；
Fig. 3 is present pre-ferred embodiments flow diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is described in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, not
For limiting the present invention.
The present invention is directed to can restart storage by over-discharge rebooting device after the serious over-discharge of battery in energy storage device
Energy device, charges the battery, and the energy storage device that will sink into paralysis is restored to normal operating conditions.
The invention discloses a kind of battery over-discharges to restart circuit, referring to basic principle block diagram shown in fig. 1 comprising electricity
Pond connects the bidirectional converter and battery manager of battery, in the cathode power supply line or negative electricity of battery connection battery manager
A cold start-up button Ks is concatenated between the line of source, the cold start-up button Ks is in parallel with power switch K3, in cold start-up button Ks
Battery manager detects battery capacity when closure, is controlled according to battery capacity to bidirectional converter and power switch K3.It is described double
It is connect to current transformer with external circuit, there is charge mode and electric discharge operating mode.It is external when being in charge mode
Electric energy by bidirectional converter store into battery.When in electric discharge operating mode, the electric energy in battery passes through two-way change
Stream device is discharged into external circuit.When powering on, operator presses cold start-up button Ks, and battery passes through cold start-up button Ks
It powers to battery manager, battery manager detects battery capacity, and battery capacity is compared with over-discharge threshold value；If battery
Electricity is more than or equal to over-discharge threshold value and then sends charge or discharge instruction to bidirectional converter and control power switch K3 conducting,
Charging instruction is sent to bidirectional converter if battery capacity is less than over-discharge threshold value and controls power switch K3 conducting.Electricity
For source switch K3 relative to self-supporting switch, being attracted conducting can guarantee that battery last is powered to battery manager.
Referring to Fig. 2 shows preferred embodiment, battery manager concatenates a power module between the battery, described cold to open
Dynamic button Ks and power switch K3 is serially connected on cathode power supply line or the anode power cord between battery and power module.Compared with
In good embodiment, the power module uses Switching Power Supply.In some embodiments, the electricity that battery is made of multiple baby batteries
Pond group, output voltage is higher, is not appropriate for powering directly to battery manager, power module can be with burning voltage, to battery
Manager provides the DC power supply of appropriate volt value.
Referring to Fig. 2 shows preferred embodiment, it is female that positive electrode bus and cathode are equipped between the battery and bidirectional converter
Line, main positive relay of connecting in the positive electrode bus, main negative relay of connecting on the negative electrode bus, main positive relay and
Negative electrode bus is controlled by the battery manager.Relay contact is concatenated in DC bus, helps to implement energy storage device
Control, improves the safety of system.
The power switch K3 uses electronic switch or relay.In the preferred embodiment, the power switch K3 is used
Two power supplys of battery manager are connected to after relay, a pair of of normally opened contact of the relay and work light block coupled in series
Between input terminal.Indicator light is lighted there are two prerequisite, first is that battery manager is powered, second is that power switch K3 inhales
Close conducting.Indicator light, which is lighted, can provide operation instruction to operator.
In the preferred embodiment, the bidirectional converter uses bidirectional, dc current transformer, and bidirectional, dc current transformer is external
Circuit is DC circuit.
The invention also discloses a kind of energy storage devices, and above-mentioned battery over-discharge is used to restart circuit.
The invention also discloses the control methods that circuit is restarted in a kind of above-mentioned battery over-discharge comprising following steps: step
10. closure cold start-up button Ks, battery manager must establish beginning detection battery capacity by cable；Step 20. judges whether battery capacity is big
In over-discharge threshold value, indicates that battery capacity is more without over-discharge in this way, then control main positive relay K1, main negative relay K2 is closed
It closes, and turn-on power switch K3, then terminates to launch into normal mode of operation；It indicates that battery capacity is less as no and has been subjected to
It puts, then enters charge mode and be transferred to step 30；Step 30. to bidirectional converter send charging instruction, when battery capacity be greater than etc.
Terminate to launch into normal mode of operation when over-discharge threshold value.Into after normal mode of operation, battery manager is to Bidirectional variable-flow
Device sends charging instruction or electric discharge instruction.Whereby, the present invention can effectively solve the problem that the starting problem after energy storage device over-discharge,
Increase a small amount of component on the basis of energy storage device available circuit and realize self-rescue function, has adaptivity strong, it is at low cost, succinctly
Convenient, easily operated advantage.
The flow diagram of the preferred embodiment shown referring to Fig. 3, the step 30 include: step 31. judgement cold start-up by
Whether button Ks closing time is greater than delay threshold, if not, 10 are gone to step, if so, then going to step 32；Step 32. battery management
The main positive relay K1 of device control, main negative relay K2 closure, and turn-on power switch K3；Step 33. battery manager is to two-way
Current transformer sends charging instruction；Step 34. judges whether battery capacity is greater than over-discharge threshold value, if not, 33 are gone to step, if so,
Then stop sending charging instruction to bidirectional converter.
In the preferred embodiment, the delay threshold in the step 31 is 5 seconds.After battery over-discharge, long-pressing cold start-up
Just enter charging procedure within button Ks5 seconds, prompts whether operator immediately enters charge step whereby.
It may be noted that cold start-up button Ks is a hand push button, route is connected when hand presses lower button, when hand leaves button
Route disconnects.So power on initial stage need be manually pressed by, battery manager could work once electrified, when power switch K3 be attracted,
Cold start-up button Ks is shorted, and battery manager energy self-sustaining power supply need not press open cold start-up button Ks at this time, can release
Put Ks.Cold start-up button Ks when can be decontroled as operator, first is that can be with listening, it can be with when hearing that relay is attracted
Decontrol button；Second is that the indicator light in observation work light module can also decontrol button when indicator light lights.
Above embodiments are by way of example only, non-to provide constraints.It is any without departing from the application spirit and scope, and to it
The equivalent modifications or change of progress, shall be included in the scope of claims of this application.
Claims (11)
1. circuit, including battery are restarted in a kind of battery over-discharge, the bidirectional converter and battery manager of battery are connected, feature exists
In one cold start-up button Ks of concatenation, described between the cathode power supply line or anode power cord of battery connection battery manager
It is in parallel with power switch K3 to be cold-started button Ks, when being cold-started button Ks closure, battery manager detects battery capacity, according to
Battery capacity is controlled to bidirectional converter and power switch K3.
2. circuit is restarted in battery over-discharge as described in claim 1, which is characterized in that gone here and there between the battery and battery manager
A power module is connect, the cold start-up button Ks and power switch K3 is serially connected in the cathode power supply between battery and power module
On line or anode power cord.
3. circuit is restarted in battery over-discharge as claimed in claim 2, which is characterized in that the power module uses Switching Power Supply.
4. circuit is restarted in battery over-discharge as described in claim 1, which is characterized in that set between the battery and bidirectional converter
There are positive electrode bus and negative electrode bus, main positive relay of connecting in the positive electrode bus is connected main negative on the negative electrode bus
Relay, main positive relay and negative electrode bus are controlled by the battery manager.
5. circuit is restarted in battery over-discharge as described in claim 1, which is characterized in that the power switch K3 uses electronic switch
Or relay.
6. circuit is restarted in battery over-discharge as described in claim 1, which is characterized in that the power switch K3 uses relay,
Two power inputs of battery manager are connected to after a pair of of the normally opened contact and work light block coupled in series of the relay
Between.
7. circuit is restarted in battery over-discharge as described in claim 1, which is characterized in that the bidirectional converter uses bidirectional, dc
Current transformer.
8. a kind of energy storage device, which is characterized in that it uses the described in any item battery over-discharges of claim 1 to 7 to restart circuit.
9. the control method that circuit is restarted in a kind of battery over-discharge of any one of claim 1 to 7, which is characterized in that including with
Lower step:
Step 10. closure cold start-up button Ks, battery manager must establish beginning detection battery capacity by cable；
Step 20. judges whether battery capacity is greater than over-discharge threshold value, if so, then controlling main positive relay K1, main negative relay K2
Closure, and turn-on power switch K3, then terminate to launch into normal mode of operation；If not, being transferred to step into charge mode
Rapid 30；
Step 30. sends charging instruction to bidirectional converter, terminates to launch into when battery capacity is more than or equal to over-discharge threshold value
Normal mode of operation.
10. the control method that circuit is restarted in battery over-discharge as claimed in claim 9, which is characterized in that the step 30 includes:
Step 31. judges to be cold-started whether button Ks closing time is greater than delay threshold, if not, 10 are gone to step, if so, then turning
Step 32；
The main positive relay K1 of step 32. battery manager control, main negative relay K2 closure, and turn-on power switch K3；
Step 33. battery manager sends charging instruction to bidirectional converter；
Step 34. judges whether battery capacity is greater than over-discharge threshold value, if not, 33 are gone to step, if so, then stopping to Bidirectional variable-flow
Device sends charging instruction.
11. control method as claimed in claim 9, which is characterized in that the delay threshold in the step 31 is 5 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811496119.7A CN109560585B (en) | 2018-12-07 | 2018-12-07 | Battery over-discharge restarting circuit, energy storage device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811496119.7A CN109560585B (en) | 2018-12-07 | 2018-12-07 | Battery over-discharge restarting circuit, energy storage device and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109560585A true CN109560585A (en) | 2019-04-02 |
| CN109560585B CN109560585B (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811496119.7A Active CN109560585B (en) | 2018-12-07 | 2018-12-07 | Battery over-discharge restarting circuit, energy storage device and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039100A (en) * | 2020-08-18 | 2020-12-04 | 量道(深圳)储能科技有限公司 | Energy storage device with black start function and black start method |
| CN112087023A (en) * | 2020-08-20 | 2020-12-15 | 珠海格力电器股份有限公司 | Energy storage system, control method and intermittent power supply energy storage device |
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| JP2006029142A (en) * | 2004-07-13 | 2006-02-02 | Toyota Motor Corp | Engine start control device for vehicle |
| CN204068215U (en) * | 2014-07-23 | 2014-12-31 | 河南锂动电源有限公司 | With the lithium battery of power-off protection |
| CN104737407A (en) * | 2012-09-20 | 2015-06-24 | 雷诺股份公司 | Power supply system and method for an electric vehicle |
| CN107591829A (en) * | 2017-09-25 | 2018-01-16 | 中天储能科技有限公司 | A kind of large-scale energy storage high direct voltage control system and its control method |
| CN207743753U (en) * | 2018-01-24 | 2018-08-17 | 浙江正电信息科技股份有限公司 | A kind of self-starting device of lithium ion battery applications Large UPS power supply |
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2018
- 2018-12-07 CN CN201811496119.7A patent/CN109560585B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029142A (en) * | 2004-07-13 | 2006-02-02 | Toyota Motor Corp | Engine start control device for vehicle |
| CN104737407A (en) * | 2012-09-20 | 2015-06-24 | 雷诺股份公司 | Power supply system and method for an electric vehicle |
| CN204068215U (en) * | 2014-07-23 | 2014-12-31 | 河南锂动电源有限公司 | With the lithium battery of power-off protection |
| CN107591829A (en) * | 2017-09-25 | 2018-01-16 | 中天储能科技有限公司 | A kind of large-scale energy storage high direct voltage control system and its control method |
| CN207743753U (en) * | 2018-01-24 | 2018-08-17 | 浙江正电信息科技股份有限公司 | A kind of self-starting device of lithium ion battery applications Large UPS power supply |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039100A (en) * | 2020-08-18 | 2020-12-04 | 量道(深圳)储能科技有限公司 | Energy storage device with black start function and black start method |
| CN112087023A (en) * | 2020-08-20 | 2020-12-15 | 珠海格力电器股份有限公司 | Energy storage system, control method and intermittent power supply energy storage device |
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| CN109560585B (en) | 2020-10-02 |
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