CN108767932A - A kind of energy storage serial array and its control method - Google Patents
A kind of energy storage serial array and its control method Download PDFInfo
- Publication number
- CN108767932A CN108767932A CN201810775302.4A CN201810775302A CN108767932A CN 108767932 A CN108767932 A CN 108767932A CN 201810775302 A CN201810775302 A CN 201810775302A CN 108767932 A CN108767932 A CN 108767932A
- Authority
- CN
- China
- Prior art keywords
- energy storage
- switch
- accumulator
- solar panels
- branch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 238000003491 array Methods 0.000 abstract description 2
- 238000010891 electric arc Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
Abstract
The invention discloses a kind of energy storage serial arrays, including at least one branch, branch route multiple energy storage submodules and is serially connected, energy storage submodule is made of a battery, a diode and a switch, diode is in parallel with battery, and the cathode and anode directions of the cathode and anode directions of diode and battery connected in parallel are on the contrary, switch is set between battery and branch.The energy storage serial array constitutes a controllable energy storage subelement using battery, diode and switch, by controlling disconnection and the closure of switch, can easily operate its corresponding cell switch, the part for being achieved in energy storage array is shut down.Moreover, by the way that switch can also sequential disconnects one by one to battery progress, the electronic switch for thus avoiding the output end of energy storage array is easy the mechanical switch electric arc problems on fire such as breakdown or relay in high-voltage great-current, more stablizes and safe.The invention also discloses a kind of control methods of energy storage serial array.
Description
Technical field
The present invention relates to energy storage device, more particularly to a kind of energy storage serial array and its control method.
Background technology
Energy storage device common at present, is generally made of multiple cell arrays, including accumulator array and solar panels battle array
Row.
To improve the output end voltage of energy storage device, it will usually multiple accumulators or multiple solar panels be taken mutually to go here and there
The form of connection.In this form, multiple accumulators or multiple solar panels constitute a concatenated branch.At this time if electricity
Some battery in the array of pond goes wrong, and electric current can not pass through, it will the branch where leading to it forms open-circuit condition, can not
Output current will influence the normal work of this energy storage device when serious.
Moreover, be commonly used in there are two types of the on-off modes for controlling energy storage device, even if with electronic switch and physical switch,
But electronic switch is easy breakdown in high-voltage great-current, and has Leakage Current, unstable also dangerous；Physical switch exists
Arc burning is easy when disjunction, it is not easy to disjunction.
In addition, the switch of one group of series-connected cell of traditional approach pair is to carry out switching manipulation to total DC voltage of connecting.When
When using relay, need using expensive voltage DC vacuum relay with high.When electronic switches such as use MOSFET or IGBT
When, the device using high-voltage great-current is needed, power consumption is serious and is easy breakdown.
Invention content
The object of the present invention is to provide a kind of energy storage serial array and its control methods.
According to an aspect of the invention, there is provided a kind of energy storage serial array, including at least one branch, branch routing are more
A energy storage submodule is serially connected, and energy storage submodule is made of a battery, a diode and a switch, diode
It is in parallel with battery, and the cathode and anode directions of diode and the cathode and anode directions of battery connected in parallel are set to electricity on the contrary, switching
Between pond and branch.
Further, diode cathode and cathode are connected in series in branch respectively, and switch constitutes cascaded structure with battery
And it is in parallel with diode.
Further, when switch disconnects, the electric current of branch flows through the diode formation electric discharge of bypass.
Further, battery can be accumulator, or solar panels.
Further, energy storage serial array includes a plurality of branch, parallel with one another between a plurality of branch.
Preferably, further include an inverter, inverter is connected with branch both ends.
Further, it switchs as relay either triode or thyristor or MOSFET (OH crystal
Pipe) or the electronic switches such as IGBT (insulated gate bipolar transistor).
Preferably, MOSFET is connected with an antenna array control plate respectively, and antenna array control plate exports control letter to MOSFET
Number, and then control the on off state of corresponding MOSFET.
Further, antenna array control plate passes through the connection of a Current Voltage sensor and accumulator, Current Voltage sensing
The current and voltage data of accumulator is directly passed to antenna array control plate by device, and antenna array control plate acquires the Current Voltage number of accumulator
According to the working condition for detecting accumulator.
Further, antenna array control plate passes through the connection of a Current Voltage sensor and solar panels, Current Voltage biography
The generation current voltage data of solar panels is directly passed to antenna array control plate by sensor, and antenna array control plate acquires solar panels
Generation current voltage data, the working condition for detecting solar panels.
According to an aspect of the invention, there is provided a kind of control method of energy storage serial array, including following operation：
1) when working normally, switch is respectively closed, after electric current is by the cathode of accumulator or solar panels flow direction anode, then
The cathode of another accumulator either solar panels of branch where being flowed to by switch flows to accumulator or solar panels again
Anode after flow through inverter either load finally pass through switch and flows back to the cathode of accumulator or solar panels, be consequently formed
One by multiple accumulators or the current supply circuit of solar panels series-fed；
2) when each accumulator or solar panels break down, corresponding switch disconnects, accumulator or solar energy
Plate open a way, electric current by place branch another accumulator or solar panels cathode flow direction anode after, flow through inverter or
Person loads, and finally passes through diode and switch flows back to the cathode of accumulator or solar panels, and a disconnection failure is consequently formed
Partial current supply circuit；
3) when closing energy storage array, disconnect multiple switch successively, can make accumulator or solar panels successively with it is inverse
Become device or load disconnects, an off time energy accumulation array forms larger inverse peak voltage and electric current is split it is possible thereby to avoid passing through
The damage of pass and other electronic components and load；
4) similarly, when opening energy storage array, the mode of closure switch successively is taken to connect accumulator or solar panels,
Thus it avoids carrying out switching manipulation to high voltage direct current.
It is controllable using battery, diode and switch composition one using the energy storage serial array of above technical scheme
Its corresponding cell switch can be operated easily, be achieved in by controlling disconnection and the closure of switch by energy storage subelement
It shuts down the part of energy storage array.The circuit of the battery of failure and energy storage array can be formed and be opened by the energy storage serial array
Road, so that energy storage array occurs to maintain normally to run in the case of local fault.Moreover, may be used also by switch
It is disconnected with carrying out sequential one by one to battery, thus avoids the electronic switch of the output end of energy storage array in high-voltage great-current situation
Down easy arcing or breakdown the problem of, more stablize and safety.High-voltage switch gear is distributed to by the energy storage serial array of the present invention
To the switch of single battery, low tension switch operation is realized, allows client to reduce cost using low-voltage relay, or use
Low-voltage Electronic switch reduces cost and power consumption.
Description of the drawings
Fig. 1 is the structural schematic diagram of the energy storage serial array of one embodiment of the present invention.
Fig. 2 is current loop schematic diagram of the energy storage serial array shown in Fig. 1 in normal work.
Fig. 3 is current loop schematic diagram of the energy storage serial array in a battery pack open circuit shown in Fig. 1.
Fig. 4 is the structural schematic diagram of the energy storage serial array of another embodiment of the present invention.
Specific implementation mode
The invention will now be described in further detail with reference to the accompanying drawings.
Embodiment 1
Fig. 1 schematically shows a kind of energy storage serial array of embodiment according to the present invention.As shown, the dress
It sets including at least one branch 1 and an inverter 2.
Inverter 2 is connected with 1 both ends of branch.
Branch 1 is serially connected by two energy storage submodules (3a, 3b).
Switch is switch mosfet, i.e. metal-oxide half field effect transistor.
Energy storage submodule 3a is made of an accumulator C1, a diode D1 and a switch mosfet SW1.Diode
D1 is in parallel with accumulator C1, and the cathode and anode directions phase of the cathode and anode directions of diode D1 and accumulator C1 connected in parallel
Instead, switch mosfet SW1 is set between accumulator C1 and branch.
Energy storage submodule 3b is made of an accumulator C2, a diode D2 and a switch mosfet SW2.Diode
D2 is in parallel with accumulator C2, and the cathode and anode directions phase of the cathode and anode directions of diode D2 and accumulator C2 connected in parallel
Instead, switch mosfet SW2 is set between accumulator C2 and branch.
Specifically, two diode (D1, D2) anodes and cathode are connected in series in respectively in branch 1, two MOSFET
Switch (SW1, SW2) constituted respectively with two accumulators (C1, C2) cascaded structures and respectively with two diodes (D1, D2) mutually simultaneously
Connection.
In the present embodiment, two switch mosfets (SW1, SW2) are connected with an antenna array control plate 4 respectively.
Antenna array control plate 4 exports control signal to switch mosfet (SW1, SW2), and then controls corresponding switch mosfet
The on off state of (SW1, SW2).
Antenna array control plate 4 also passes through the connection of a Current Voltage sensor 5 and accumulator (C1, C2) respectively.
The current and voltage data of accumulator (C1, C2) is directly passed to antenna array control plate 4 by Current Voltage sensor 5.
Antenna array control plate 4 acquires the current and voltage data of accumulator (C1, C2), the work for detecting accumulator (C1, C2)
Make state.
In other examples, switch can also be relay either triode or the (insulation of thyristor or IGBT
Grid bipolar transistor) etc. electronic switches.
In some other embodiments, which can also include at least one branch 1 and a load.
As shown in Figures 2 and 3, the switching process of the energy storage serial array in the present embodiment is as follows：
1) when working normally, two switch mosfets (SW1, SW2) are respectively closed, and electric current is flowed to by the cathode of accumulator C1
After the anode of accumulator C1, the cathode of accumulator C2 is flowed to using switch mosfet SW2, then after flowing to the anode of accumulator C2
Flow through inverter 2, finally pass through switch mosfet SW2 and flow back to the cathode of accumulator C1, be consequently formed one by accumulator (C1,
C2) the current supply circuit of series-fed；
2) when accumulator C1 breaks down, switch mosfet SW1 is disconnected, and accumulator C1 open circuits, electric current is by accumulator C2
Cathode flow to the anode of accumulator C2 after, flow through inverter 2, finally flow back to storage by diode D1 and switch mosfet SW2
A current supply circuit individually powered by accumulator C2 is consequently formed in the cathode of battery C2；
3) when closing energy storage array, switch mosfet SW1 and switch mosfet SW2 is disconnected successively, can make accumulator
C1 and accumulator C2 is disconnected with inverter 2 successively, it is possible thereby to which avoiding passing through an off time energy accumulation array forms larger negative peak
Damage of the voltage and current to switch mosfet and other electronic components and load；
4) similarly, when opening energy storage array, it can also take and be closed switch mosfet SW1 and switch mosfet successively
The mode of SW2 connects accumulator C1 and accumulator C2, thus avoids carrying out switching manipulation to high voltage direct current.
It is controllable using battery, diode and switch composition one using the energy storage serial array of above technical scheme
Its corresponding cell switch can be operated easily, be achieved in by controlling disconnection and the closure of switch by energy storage subelement
It shuts down the part of energy storage array.The circuit of the battery of failure and energy storage array can be formed and be opened by the energy storage serial array
Road, so that energy storage array occurs to maintain normally to run in the case of local fault.Moreover, may be used also by switch
It is disconnected with carrying out sequential one by one to battery, thus avoids the electronic switch of the output end of energy storage array in high-voltage great-current situation
Down easy arcing or breakdown the problem of, more stablize and safety.High-voltage switch gear is distributed to by the energy storage serial array of the present invention
To the switch of single battery, low tension switch operation is realized, allows client to reduce cost using low-voltage relay, or use
Low-voltage Electronic switch reduces cost and power consumption.
Embodiment 2
Fig. 4 schematically shows the energy storage serial array of another embodiment according to the present invention.As shown, with
Embodiment 1 the difference is that, energy storage serial array includes a plurality of branch 1, and the battery in energy storage submodule 3 is the sun
It can plate G.
Wherein, parallel with one another between a plurality of branch 1.
In the present embodiment, antenna array control plate 4 passes through the connection of a Current Voltage sensor 5 and solar panels G, electric current
The generation current voltage data of solar panels G is directly passed to antenna array control plate 4 by voltage sensor 5, and antenna array control plate 4 acquires
The generation current voltage data of solar panels G, the working condition for detecting solar panels G.As some solar panels G therein
When failure, antenna array control plate 4 is opened a way by corresponding switch mosfet SW.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
It encloses.
Claims (10)
1. a kind of energy storage serial array, which is characterized in that including at least one branch, the branch route multiple energy storage submodule phases
Mutually be connected in series, the energy storage submodule is made of a battery, a diode and a switch, the diode with it is described
Battery is in parallel, and the cathode and anode directions of the cathode and anode directions of the diode and the battery connected in parallel are on the contrary, described
Switch is set between the battery and the branch.
2. energy storage serial array according to claim 1, which is characterized in that the diode cathode and cathode are connected respectively
It is connected in the branch, the switch constitutes cascaded structure with the battery and is in parallel with the diode.
3. energy storage serial array according to claim 2, which is characterized in that when the switch disconnects, the electricity of the branch
The diode that stream flows through bypass forms electric discharge.
4. energy storage serial array according to claim 1, which is characterized in that the battery is accumulator or solar energy
Plate.
5. energy storage serial array according to claim 1, which is characterized in that including a plurality of branch, a plurality of branch
It is parallel with one another between road.
6. energy storage serial array according to claim 1, which is characterized in that further include an inverter or load, institute
It states inverter or the load is connected with the branch both ends.
7. energy storage serial array according to any one of claims 1 to 6, which is characterized in that the switch is relay, or
Person's electronic switch such as MOSFET either triode or thyristor or IGBT.
8. energy storage serial array according to claim 7, which is characterized in that it is described switch respectively with an antenna array control plate
It is connected, the antenna array control plate exports control signal to the switch, and then controls the on off state of the corresponding switch.
9. energy storage serial array according to claim 8, which is characterized in that the antenna array control plate passes through an electric current electricity
Pressure sensor is connect with the accumulator, and the Current Voltage sensor directly transmits the current and voltage data of the accumulator
To the antenna array control plate, the antenna array control plate acquires the current and voltage data of the accumulator, for detecting the electric power storage
The working condition in pond；
Alternatively, the antenna array control plate is connect by a Current Voltage sensor with the solar panels, the Current Voltage
The generation current voltage data of the solar panels is directly passed to the antenna array control plate, the antenna array control plate by sensor
Acquire the generation current voltage data of the solar panels, the working condition for detecting the solar panels.
10. the control method of energy storage serial array according to claim 7, including following operation：
1) when working normally, the switch is respectively closed, and electric current is flowed to by the cathode of the accumulator or the solar panels
After anode, another described accumulator of branch or the cathode of the solar panels where being flowed to using the switch, then
It flows to the accumulator and either flows through the inverter or the load after the anode of the solar panels, finally pass through described
The cathode that switch flows back to the accumulator either solar panels is consequently formed one by multiple accumulators or described
The current supply circuit of solar panels series-fed；
2) when each accumulator or the solar panels break down, corresponding switch disconnects, the accumulator or
Solar panels described in person are opened a way, and electric current is flowed to by another described accumulator of place branch or the cathode of the solar panels
After anode, the inverter or the load are flowed through, finally flows back to the accumulator by the diode and the switch
Or the cathode of the solar panels, the current supply circuit of a disconnection faulty component is consequently formed；
3) when closing energy storage array, multiple switches are disconnected successively, can make the accumulator or the solar panels
It is disconnected successively with the inverter or load, it is possible thereby to which avoiding passing through an off time energy accumulation array forms larger negative peak electricity
The damage of pressure and electric current to the switch and other electronic components and load；
4) similarly, when opening energy storage array, the mode for being closed the switch successively is taken to connect the accumulator or described
Thus solar panels avoid carrying out switching manipulation to high voltage direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810775302.4A CN108767932A (en) | 2018-07-16 | 2018-07-16 | A kind of energy storage serial array and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810775302.4A CN108767932A (en) | 2018-07-16 | 2018-07-16 | A kind of energy storage serial array and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108767932A true CN108767932A (en) | 2018-11-06 |
Family
ID=63973976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810775302.4A Pending CN108767932A (en) | 2018-07-16 | 2018-07-16 | A kind of energy storage serial array and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108767932A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245711A (en) * | 2018-11-26 | 2019-01-18 | 海宁昱能电子有限公司 | A kind of photovoltaic system safety features |
| CN113258146A (en) * | 2021-03-29 | 2021-08-13 | 华为技术有限公司 | Battery system, driving system and energy storage container |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164144Y (en) * | 1992-10-19 | 1994-05-04 | 杨泰和 | Step-type multiple-voltage operating and controlling device for low heat-loss and sparkless battery unit |
| CN1236213A (en) * | 1998-03-03 | 1999-11-24 | 佳能株式会社 | Photovoltaic power generating system |
| EP1076477A2 (en) * | 1999-08-13 | 2001-02-14 | Tai-Her Yang | Solar cell for lighting purpose |
| CN2615947Y (en) * | 2003-03-04 | 2004-05-12 | 杨福义 | Serial individual detecting battery charger |
| JP2013120803A (en) * | 2011-12-06 | 2013-06-17 | Ntt Facilities Inc | Fault detector of photovoltaic power generation device |
-
2018
- 2018-07-16 CN CN201810775302.4A patent/CN108767932A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164144Y (en) * | 1992-10-19 | 1994-05-04 | 杨泰和 | Step-type multiple-voltage operating and controlling device for low heat-loss and sparkless battery unit |
| CN1236213A (en) * | 1998-03-03 | 1999-11-24 | 佳能株式会社 | Photovoltaic power generating system |
| EP1076477A2 (en) * | 1999-08-13 | 2001-02-14 | Tai-Her Yang | Solar cell for lighting purpose |
| CN2615947Y (en) * | 2003-03-04 | 2004-05-12 | 杨福义 | Serial individual detecting battery charger |
| JP2013120803A (en) * | 2011-12-06 | 2013-06-17 | Ntt Facilities Inc | Fault detector of photovoltaic power generation device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245711A (en) * | 2018-11-26 | 2019-01-18 | 海宁昱能电子有限公司 | A kind of photovoltaic system safety features |
| CN109245711B (en) * | 2018-11-26 | 2020-02-28 | 海宁昱能电子有限公司 | Photovoltaic system safety protection equipment |
| CN113258146A (en) * | 2021-03-29 | 2021-08-13 | 华为技术有限公司 | Battery system, driving system and energy storage container |
| CN113258146B (en) * | 2021-03-29 | 2022-12-30 | 华为数字能源技术有限公司 | Battery system, driving system and energy storage container |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106602504B (en) | A kind of photovoltaic Quick shut-off device and photovoltaic system | |
| CN106099878B (en) | A kind of capacitor charging type bidirectional, dc breaker and its application | |
| CN104578865B (en) | A kind of T-shaped fault-tolerant current transformer of three level four bridge legs and its control method | |
| CN108322056B (en) | Modular high-voltage direct-current conversion device and control method thereof | |
| WO2017181927A1 (en) | Direct current switch-off device and control method thereof | |
| CN102668305B (en) | Battery energy storage system with short circuit protection, and method | |
| CN106207953B (en) | High-power hybrid direct current circuit breaker | |
| WO2017024598A1 (en) | Mmc-hvdc system, and direct-current side isolation device and isolation method therefor | |
| CN105680409B (en) | A kind of bridge circuit, DC current break-up device and its control method | |
| CN208433908U (en) | Voltage source converter module and inverter | |
| CN114050811B (en) | Multi-input shutoff device, control method and photovoltaic power generation system | |
| CN106877301A (en) | A kind of high voltage DC breaker and test method | |
| CN110021919A (en) | Intensive bridge-type multiport mixed DC breaker and control method | |
| CN104980137A (en) | Forced current conversion type all-solid-state high-speed DC circuit breaker and current conversion switch | |
| CN111630620B (en) | Switching device | |
| CN111313825A (en) | Photovoltaic module shutoff device | |
| CN105827117B (en) | Combined vertical current converter | |
| CN115276549A (en) | PID effect suppression system | |
| CN106787977A (en) | A kind of synchronous electric motor rotor field circuit with fault-tolerant operation | |
| CN108767932A (en) | A kind of energy storage serial array and its control method | |
| CN111224391A (en) | Photovoltaic input breaking protection system | |
| CN205790256U (en) | A kind of power battery pack security protection module cascaded | |
| EP2634882A1 (en) | DC supply unit for a power provision unit | |
| CN109327016A (en) | A kind of direct current interpolar break-up device and control method | |
| CN206619906U (en) | A kind of dc circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181106 |
|
| WD01 | Invention patent application deemed withdrawn after publication |