CN109149745A - A kind of photovoltaic energy storage system - Google Patents
A kind of photovoltaic energy storage system Download PDFInfo
- Publication number
- CN109149745A CN109149745A CN201810975872.8A CN201810975872A CN109149745A CN 109149745 A CN109149745 A CN 109149745A CN 201810975872 A CN201810975872 A CN 201810975872A CN 109149745 A CN109149745 A CN 109149745A
- Authority
- CN
- China
- Prior art keywords
- battery group
- battery
- relay
- storage system
- photovoltaic
- 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
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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
- H02J7/36—Arrangements using end-cell switching
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of photovoltaic energy storage systems, including controlling terminal, BMS system, photovoltaic module plate and power grid, the controlling terminal connecting pin is connected with BMS system, the BMS system is connected with photovoltaic controller and grid-connected transformer by RS485 communication bus, the photovoltaic controller input terminal is connected with photovoltaic module plate and input terminal is connected with the first battery group, the grid-connected transformer inputs are connected with power grid and output end is connected with the second battery group, the first relay is provided between the photovoltaic controller and the first battery group, third relay is provided between the first battery group and BMS system.The present invention to battery group in the course of work by protecting the relay of interlocking-type with the concatenated mode of battery group; solve in existing photovoltaic energy storage technical field, battery group often because overcharged, over-discharge and overcurrent and the problem of influence the service life of battery group.
Description
Technical field
The present invention relates to technical field of energy storage, in particular to a kind of photovoltaic energy storage system.
Background technique
Nowadays solar power generation comes into the technology maturation phase, with popularizing for solar energy equipment, many families also start
It introduces.But in existing photovoltaic energy storage technical field, battery group often because overcharged, over-discharge and overcurrent and influence
To the service life of battery group.
Therefore, it is necessary to solve the above problems to invent a kind of photovoltaic energy storage system.
Summary of the invention
The purpose of the present invention is to provide a kind of photovoltaic energy storage system, by by the relay of interlocking-type and battery group string
The mode of connection protects battery group in the course of work, to solve mentioned above in the background art in existing photovoltaic
In technical field of energy storage, battery group often because overcharged, over-discharge and overcurrent and influence the service life of battery group
The problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of photovoltaic energy storage system, including controlling terminal,
BMS system, photovoltaic module plate and power grid, the controlling terminal connecting pin are connected with BMS system, and the BMS system passes through RS485
Communication bus is connected with photovoltaic controller and grid-connected transformer, the photovoltaic controller input terminal be connected with photovoltaic module plate and
Input terminal is connected with the first battery group, and the grid-connected transformer inputs are connected with power grid and output end is connected with the second storage
Battery pack is provided with the first relay, the first battery group and BMS between the photovoltaic controller and the first battery group
It is provided with third relay between system, the second relay, institute are provided between the grid-connected transformer and the second battery group
It states and is provided with the 4th relay between the second battery group and BMS system, and pass through cable phase between above-mentioned each control assembly
Connection.
Preferably, it connects between first relay, the first battery group, third relay and BMS system, described
It connects between two relays, the second battery group, the 4th relay and BMS system.
Preferably, the BMS system includes battery group monitoring unit, battery group control unit and energy-storage system management
Unit, the battery group monitoring unit and battery group control unit and battery group control unit and energy-storage system management
It is connected by signal wire between unit.
Preferably, what the battery group monitoring unit was selected is BMM3.1 type battery detection module, can be by battery group
The functions such as monitoring acquisition, charge balancing management and the fault diagnosis of operation information are highly integrated in one, the battery group control
What unit processed was selected is ESGU type battery pack control module, and cut-offfing for controllable whole group battery is overcharged, over-discharge to avoid battery
And overcurrent, what the energy-storage system administrative unit was selected is ESMU type energy-storage system management module, to monitor to battery group
The battery real time data that unit uploads carries out numerical value calculating, performance evaluation, alert process and record storage etc..
Preferably, what the first battery group and the second battery group were selected is ferric phosphate lithium cell group, the phosphorus
Sour lithium iron battery group is to compose in parallel cluster by 216 strings 2 by 432 3.2V100Ah single batteries, then pass through 8 cluster parallel connection groups
It closes.
Preferably, it is connected between the controlling terminal and BMS system by RS485 communication bus or Ethernet.
Preferably, what the cable and signal wire were selected is multiply copper core insulation multiple twin type Double-color fire resistant flexible circuit conductor, institute
State the selection of RS485 communication bus is the copper core insulating sheath shielding double-colored flexible circuit conductor of multiple twin type.
Preferably, the present invention also provides a kind of control methods of photovoltaic energy storage system, specific steps are as follows:
S1: sending the initial data of battery group at the OPC Server of each battery group by smart machine,
And the data for meeting OPC specification are converted by the data that OPC Server sends smart machine, while providing the number of standard
According to interface；
S2: the data-interface for calling OPC Server to provide with control module by data acquisition obtains meeting OPC specification
Battery group data be converted to the same data format of BMS, store into real-time data base and by data by format conversion；
S3: linkage control module is by monitoring the variate-value variation in real-time data base, if discovery meets linkage
The variable change of condition just sends control command into real-time data base according to preset linkage controller, these control commands
By format conversion, data acquisition and control, OPC Server, target battery group is eventually arrived at, to realize linkage；
S4: the data in real-time data base are presented to the user by user interface with intuitive way, while being provided control and being connect
Mouth receives the control command that user issues.
Technical effect and advantage of the invention:
1, by being equipped with BMS system, the monitoring of battery group operation information is acquired using battery detection module, charging
The functions such as balanced management and fault diagnosis are highly integrated in one, meanwhile, whole group battery is controlled by battery pack control module
Cut-off, overcharged to avoid battery, over-discharge and overcurrent, and energy-storage system management module, be then to be monitored to battery group
The battery real time data that unit uploads carries out numerical value calculating, performance evaluation, alert process and record storage etc.；
2, mutual lock control is carried out to third relay and the 4th relay by BMS system, with guarantee third relay and
4th relay have always one and only one be in closed state, effectively prevent the unstability of dual power supply, together
When, the first relay and third relay are interlocked by BMS system, avoid the charge and discharge simultaneously of the first battery group,
Be conducive to improve the service life of the first battery group, similarly, by improving to the second relay and the interlocking of the 4th relay
Second battery group service life；
3, by selecting cable, signal wire and the RS485 connection of twisted pair, be conducive to the signal for improving each connecting line
Transmittability and interference free performance, so that it is guaranteed that the reliability service of system；
4, ferric phosphate lithium cell is in use, environmentally protective, the service life is long, and its high-temperature behavior is good, memoryless effect
It answers, energy conversion rate is high, can satisfy the needs of energy storage device；
5, the present invention is converted into the data for meeting OPC specification using the data that OPC Server sends smart machine, together
When provide standard data-interface, for data acquisition with control module call OPC Server provide data-interface, thus
The battery group data for meeting OPC specification are obtained, and data are converted into the same data format of BMS, and deposit by format conversion
It stores up in real-time data base, then by linkage control module by being monitored to the variate-value variation in real-time data base, one
Denier finds the variable change for meeting linkage condition, just sends control command to real-time data base according to preset linkage controller
In, these control commands eventually arrive at target battery group by format conversion, data acquisition and control, OPC Server, from
And realize linkage, greatly optimize the monitoring and management method to battery group.
Detailed description of the invention
Fig. 1 is the solution of the present invention deployment architecture schematic diagram；
Fig. 2 is BMS system construction drawing of the invention；
Fig. 3 is control flow chart of the invention；
In figure: 1 controlling terminal, 2 BMS systems, 21 battery group monitoring unit, 22 battery group control units, 23 energy storage
System Management Unit, 3 photovoltaic controllers, 4 grid-connected transformers, 5 photovoltaic module plates, 6 first battery groups, 7 power grids, 8 second store
Battery pack, 9 first relays, 10 second relays, 11 third relays, 12 the 4th relays.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
The present invention provides a kind of photovoltaic energy storage systems as shown in Figs. 1-2, including controlling terminal 1, BMS system 2, photovoltaic
Component palette 5 and power grid 6,1 connecting pin of controlling terminal are connected with BMS system 2, and the BMS system 2 is communicated total by RS485
Line is connected with photovoltaic controller 3 and grid-connected transformer 4, and 3 input terminal of photovoltaic controller is connected with photovoltaic module plate 5 and defeated
Enter end and be connected with the first battery group 6, grid-connected 4 input terminal of transformer is connected with power grid 7 and output end is connected with second
Battery group 8 is provided with the first relay 9, first battery between the photovoltaic controller 3 and the first battery group 6
It is provided with third relay 11 between group 6 and BMS system 2, is provided between the grid-connected transformer 4 and the second battery group 8
Second relay 10 is provided with the 4th relay 12, and above-mentioned each control group between the second battery group 8 and BMS system 2
It is connected by cable between part.
Further, in the above-mentioned technical solutions, first relay 9, the first battery group 6, third relay 11
It connects between BMS system 2, between second relay 10, the second battery group 8, the 4th relay 12 and BMS system 2
Series connection.
Further, in the above-mentioned technical solutions, it is communicated between the controlling terminal 1 and BMS system 2 by RS485 total
Line or Ethernet are connected.
Having the beneficial effect that for above-mentioned technical proposal carries out third relay 11 and the 4th relay 12 by BMS system 2
Mutual lock control, with guarantee third relay 11 and the 4th relay 12 have always one and only one be in closed state, have
Effect avoids the unstability of dual power supply, meanwhile, first relay 9 and third relay 11 are carried out by BMS system 2
Interlocking avoids 6 charge and discharge simultaneously of the first battery group, is conducive to the service life for improving the first battery group 6, similarly, leads to
It crosses to the second relay 10 and the interlocking of the 4th relay 12, improves 8 service life of the second battery group.
Embodiment 2:
Further, in the technical solution of embodiment 1, the BMS system 2 includes battery group monitoring unit 21, stores
Battery pack control unit 22 and energy-storage system administrative unit 23, the battery group monitoring unit 21 and battery group control unit
It is connected by signal wire between 22 and battery group control unit 22 and energy-storage system administrative unit 23, and the electric power storage
What pond group monitoring unit 21 was selected is BMM3.1 type battery detection module, can acquire the monitoring of battery group operation information, fill
The functions such as electrical equalization management and fault diagnosis are highly integrated in one, and what the battery group control unit 22 was selected is ESGU type
Battery pack control module, cut-offfing for controllable whole group battery are overcharged, over-discharge and overcurrent, the energy-storage system to avoid battery
What administrative unit 23 was selected is ESMU type energy-storage system management module, and the battery to upload to battery group monitoring unit 21 is real
When data carry out numerical value calculating, performance evaluation, alert process and record storage etc..
Further, in the technical solution of embodiment 1, the first battery group 6 and the second battery group 8 are selected
Be ferric phosphate lithium cell group, the ferric phosphate lithium cell group is in parallel by 216 strings 2 by 432 3.2V100Ah single batteries
Cluster is formed, then is formed by 8 cluster parallel combinations, wherein ferric phosphate lithium cell is in use, environmentally protective, the service life is long,
And its high-temperature behavior is good, memory-less effect, and energy conversion rate is high.
Further, in the technical solution of embodiment 1, what the cable and signal wire were selected is the insulation of multiply copper core
Multiple twin type Double-color fire resistant flexible circuit conductor, what the RS485 communication bus was selected, which is that copper core insulating sheath shielding multiple twin type is double-colored, soft leads
Line can come ensure system by the excellent signal transmission performance and interference free performance using twisted pair compared to parallel wire
By operation.
Embodiment 3:
The present invention also provides a kind of control methods of photovoltaic energy storage system as shown in Figure 3, and concrete operation step is such as
Under:
S1: sending the initial data of battery group at the OPCServer of each battery group by smart machine, and
It is converted into the data for meeting OPC specification by the data that OPC Server sends smart machine, while the data of standard being provided
Interface；
S2: the data-interface for calling OPC Server to provide with control module by data acquisition obtains meeting OPC specification
Battery group data be converted to the same data format of BMS, store into real-time data base and by data by format conversion；
S3: linkage control module is by monitoring the variate-value variation in real-time data base, if discovery meets linkage
The variable change of condition just sends control command into real-time data base according to preset linkage controller, these control commands
By format conversion, data acquisition and control, OPC Server, target battery group is eventually arrived at, to realize linkage；
S4: the data in real-time data base are presented to the user by user interface with intuitive way, while being provided control and being connect
Mouth receives the control command that user issues.
Working principle of the present invention:
Referring to Figure of description 1, in use, by the way that photovoltaic module plate 5 is converted on the electric energy and power grid 7 that generate
Extra electric energy passes through photovoltaic controller 3 and the storage of grid-connected transformer 4 into corresponding battery group respectively, and passes through BMS system
It unites 2 pairs of third relays 11 and the 4th relay 12 carries out mutual lock control, to guarantee third relay 11 and the 4th relay 12
Always have one and only one be in closed state, effectively prevent the unstability of dual power supply, meanwhile, pass through BMS
System 2 interlocks the first relay 9 and third relay 11, avoids 6 charge and discharge simultaneously of the first battery group, is conducive to
The service life of the first battery group 6 is improved, similarly, by being interlocked to the second relay 10 and the 4th relay 12, is mentioned
High second battery group, 8 service life；
Referring to Figure of description 2, in use, BMS system 2 is by battery group monitoring unit 21, storage for BMS system 2
Battery pack control unit 22 and energy-storage system administrative unit 23 are constituted, and battery group monitoring unit 21 and battery group control
It is connected by signal wire between unit 22 and battery group control unit 22 and energy-storage system administrative unit 23, wherein
What battery group monitoring unit 21 was selected is BMM3.1 type battery detection module, can adopt the monitoring of battery group operation information
Integrate, the functions such as charge balancing management and fault diagnosis it is highly integrated, that battery group control unit 22 is selected is ESGU
Type battery pack control module, cut-offfing for controllable whole group battery are overcharged, over-discharge and overcurrent, energy-storage system pipe to avoid battery
Manage the selection of unit 23 is ESMU type energy-storage system management module, and the battery to upload to battery group monitoring unit 21 is real-time
Data carry out numerical value calculating, performance evaluation, alert process and record storage etc..
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of photovoltaic energy storage system, including controlling terminal (1), BMS system (2), photovoltaic module plate (5) and power grid (6), special
Sign is: controlling terminal (1) connecting pin is connected with BMS system (2), and the BMS system (2) passes through RS485 communication bus
It is connected with photovoltaic controller (3) and grid-connected transformer (4), photovoltaic controller (3) input terminal is connected with photovoltaic module plate (5)
And input terminal is connected with the first battery group (6), grid-connected transformer (4) input terminal is connected with power grid (7) and output
End is connected with the second battery group (8), is provided with the first relay between the photovoltaic controller (3) and the first battery group (6)
Device (9) is provided with third relay (11), the grid-connected transformer between the first battery group (6) and BMS system (2)
(4) it is provided with the second relay (10) between the second battery group (8), the second battery group (8) and BMS system (2)
Between be provided with the 4th relay (12), and be connected by cable between above-mentioned each control assembly.
2. a kind of photovoltaic energy storage system according to claim 1, it is characterised in that: first relay (9), first store
It connects between battery pack (6), third relay (11) and BMS system (2), second relay (10), the second battery group
(8), it connects between the 4th relay (12) and BMS system (2).
3. a kind of photovoltaic energy storage system according to claim 1, it is characterised in that: the BMS system (2) includes battery
Group monitoring unit (21), battery group control unit (22) and energy-storage system administrative unit (23), the battery group monitoring are single
First (21) and battery group control unit (22) and battery group control unit (22) and energy-storage system administrative unit (23) it
Between be connected by signal wire.
4. a kind of photovoltaic energy storage system according to claim 3, it is characterised in that: the battery group monitoring unit (21)
What is selected is BMM3.1 type battery detection module, can be by the monitoring acquisition of battery group operation information, charge balancing management and event
The functions such as barrier diagnosis are highly integrated in one, and what the battery group control unit (22) was selected is ESGU type battery pack control mould
Block, cut-offfing for controllable whole group battery are overcharged, over-discharge and overcurrent, the energy-storage system administrative unit (23) to avoid battery
What is selected is ESMU type energy-storage system management module, to battery real time data that battery group monitoring unit (21) is uploaded into
The calculating of line number value, performance evaluation, alert process and record storage etc..
5. a kind of photovoltaic energy storage system according to claim 1, it is characterised in that: the first battery group (6) and
What two battery groups (8) were selected is ferric phosphate lithium cell group, and the ferric phosphate lithium cell group is mono- by 432 3.2V100Ah
Body battery composes in parallel cluster by 216 strings 2, then is formed by 8 cluster parallel combinations.
6. a kind of photovoltaic energy storage system according to claim 1, it is characterised in that: the controlling terminal (1) and BMS system
(2) it is connected between by RS485 communication bus or Ethernet.
7. a kind of photovoltaic energy storage system according to claim 3, it is characterised in that: what the cable and signal wire were selected
It is multiply copper core insulation multiple twin type Double-color fire resistant flexible circuit conductor, what the RS485 communication bus was selected is the shielding of copper core insulating sheath
The double-colored flexible circuit conductor of multiple twin type.
8. a kind of control method of photovoltaic energy storage system, specific steps are as follows:
S1: it sends the initial data of battery group at the OPCServer of each battery group by smart machine, and passes through
The data that OPC Server sends smart machine are converted into the data for meeting OPC specification, while providing the data-interface of standard；
S2: the data-interface for calling OPC Server to provide with control module by data acquisition obtains the storage for meeting OPC specification
Battery pack data, and data are converted into the same data format of BMS by format conversion, it stores into real-time data base；
S3: linkage control module is by monitoring the variate-value variation in real-time data base, if discovery meets linkage condition
Variable change, just according to preset linkage controller send control command into real-time data base, these control commands pass through
Format conversion, data acquisition and control, OPC Server, eventually arrive at target battery group, to realize linkage；
S4: the data in real-time data base are presented to the user by user interface with intuitive way, while being provided control interface and being connect
Receive the control command that user issues.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975872.8A CN109149745A (en) | 2018-08-24 | 2018-08-24 | A kind of photovoltaic energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975872.8A CN109149745A (en) | 2018-08-24 | 2018-08-24 | A kind of photovoltaic energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109149745A true CN109149745A (en) | 2019-01-04 |
Family
ID=64828068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810975872.8A Pending CN109149745A (en) | 2018-08-24 | 2018-08-24 | A kind of photovoltaic energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109149745A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723748A (en) * | 2011-03-30 | 2012-10-10 | 上海桥茵科贸有限公司 | Accumulator battery array controller |
| CN102734928A (en) * | 2012-07-02 | 2012-10-17 | 王宜梁 | Novel solar water heater |
| CN103208826A (en) * | 2012-01-17 | 2013-07-17 | 湖北追日电气股份有限公司 | Container movable type photovoltaic energy storage charging station |
| CN203339769U (en) * | 2013-07-15 | 2013-12-11 | 中航锂电（洛阳）有限公司 | Online energy storage power supply for photovoltaic and mains supply complementary input |
| CN103676817A (en) * | 2013-06-13 | 2014-03-26 | 奇瑞汽车股份有限公司 | Communication base station photoelectric complementary power supply system and operation method thereof |
| CN203574431U (en) * | 2013-12-09 | 2014-04-30 | 惠州市亿能电子有限公司 | Charge and discharge interlock circuit of electric car |
| KR101803919B1 (en) * | 2017-05-19 | 2017-12-04 | 주식회사 에스알에너지 | Appratus and method for monitoring energy |
-
2018
- 2018-08-24 CN CN201810975872.8A patent/CN109149745A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723748A (en) * | 2011-03-30 | 2012-10-10 | 上海桥茵科贸有限公司 | Accumulator battery array controller |
| CN103208826A (en) * | 2012-01-17 | 2013-07-17 | 湖北追日电气股份有限公司 | Container movable type photovoltaic energy storage charging station |
| CN102734928A (en) * | 2012-07-02 | 2012-10-17 | 王宜梁 | Novel solar water heater |
| CN103676817A (en) * | 2013-06-13 | 2014-03-26 | 奇瑞汽车股份有限公司 | Communication base station photoelectric complementary power supply system and operation method thereof |
| CN203339769U (en) * | 2013-07-15 | 2013-12-11 | 中航锂电（洛阳）有限公司 | Online energy storage power supply for photovoltaic and mains supply complementary input |
| CN203574431U (en) * | 2013-12-09 | 2014-04-30 | 惠州市亿能电子有限公司 | Charge and discharge interlock circuit of electric car |
| KR101803919B1 (en) * | 2017-05-19 | 2017-12-04 | 주식회사 에스알에너지 | Appratus and method for monitoring energy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106427638A (en) | Intelligent power distribution quick charger and control method thereof | |
| US8169106B2 (en) | Energy management system and control method using the same, for determining an operation mode of a high voltage direct current system | |
| CN104393641A (en) | Power source apparatus | |
| CN103606943A (en) | Microgrid nickel-metal hydride battery energy storage system | |
| CN108448180B (en) | Ship battery management system | |
| CN109782060B (en) | Lean line loss analysis system | |
| CN202495807U (en) | Remote centralized measurement and control system for power distribution network | |
| CN102638097A (en) | Remote concentrated measurement and control system for distribution network | |
| CN111049112B (en) | Automatic fault isolation and self-healing control system and method for 10kV looped network distribution line | |
| CN212031650U (en) | Multichannel direct current insulation resistance detection protection circuit | |
| CN102931731A (en) | Integrated intelligent monitoring system applicable to substation direct-current power supply | |
| CN106451770B (en) | One kind is based on the low fault-tolerant monitoring information interaction system of distribution system | |
| CN106532150A (en) | Controllable topological structure for modularized high-voltage and high-capacity lithium battery pack | |
| CN104009268A (en) | Intelligent cell, intelligent cell monitoring system and intelligent cell monitoring method | |
| CN208189731U (en) | A kind of marine battery management system | |
| CN202649381U (en) | GOOSE-based small-current grounding route selection system of intelligent transformer substation | |
| CN205992804U (en) | The family energy-storage system of multivoltage output | |
| CN202856468U (en) | Integrated intelligent monitoring system suitable for substation direct current power supply | |
| CN108482136A (en) | Direct-current charging post based on Internet of Things | |
| CN108964259A (en) | A kind of power grid intelligence control system | |
| CN105207260B (en) | Angle-style three-phase alternating current tandem photovoltaic square formation | |
| CN103618563B (en) | Remote digital signal wire distribution system | |
| CN109149745A (en) | A kind of photovoltaic energy storage system | |
| CN104467050A (en) | Charging and discharging control method and device for storage battery | |
| CN110190580A (en) | A kind of long-range control intelligent breaker with storage function |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |