CN204721075U - A kind of photovoltaic energy storage BMS system - Google Patents
A kind of photovoltaic energy storage BMS system Download PDFInfo
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- CN204721075U CN204721075U CN201520401295.3U CN201520401295U CN204721075U CN 204721075 U CN204721075 U CN 204721075U CN 201520401295 U CN201520401295 U CN 201520401295U CN 204721075 U CN204721075 U CN 204721075U
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- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a kind of photovoltaic energy storage BMS system, ferric phosphate lithium cell group is connected detecting unit by voltage sampling circuit with temperature sampling circuit, BDI battery display interface module connects detecting unit by light-coupled isolation communication interface, positive pole connects the positive pole of ferric phosphate lithium cell group, earth terminal connects the negative pole of ferric phosphate lithium cell group, BDI battery display interface module connects current detection circuit, the negative pole of ferric phosphate lithium cell group connects the negative pole of photovoltaic battery panel charge-discharge end by current detection circuit, BDI battery display interface module connects the positive pole of photovoltaic battery panel charge-discharge end by charge-discharge control circuit, BDI battery display interface module connects PC by EMS memory management module, BDI battery display interface module connects LCD liquid crystal display screen, BDI battery display interface module also connects start stop switch.The beneficial effects of the utility model are that structure is simple, can meet battery management and the maintenance of large quantity.
Description
Technical field
The utility model belongs to photovoltaic energy storage technical field, relates to a kind of photovoltaic energy storage BMS system.
Background technology
Battery management system (BATTERY MANAGEMENT SYSTEM is called for short BMS) is the bridge between battery and user, and main object is secondary cell (being also called rechargeable battery).And there are some shortcomings in secondary cell, as few in stored energy, the life-span is short, connection in series-parallel use problem, safety in utilization, battery electric quantity estimation difficulty etc.Photovoltaic energy storage BMS is exactly mainly the utilance in order to improve ferric phosphate lithium cell, prevents battery from occurring overcharging and over-discharge can, extends the useful life of battery, the state of monitoring battery.And in existing most of BMS system product, system mainly applies the management with on-vehicle battery, but for the occasion that other need widely apply battery as photovoltaic energy storage, UPS etc., the battery management of large quantity and the demand of man-machine interaction aspect cannot be met.
Utility model content
The purpose of this utility model is to provide a kind of photovoltaic energy storage BMS system, solves existing battery management system complex structure, cannot meet the problem of the battery management of large quantity and the demand of man-machine interaction aspect.
The technical scheme that the utility model adopts comprises ferric phosphate lithium cell group, the positive pole of each the block ferric phosphate lithium cell in ferric phosphate lithium cell group connects detecting unit by voltage sampling circuit, the negative pole of each the block ferric phosphate lithium cell in ferric phosphate lithium cell group connects detecting unit by temperature sampling circuit, detecting unit has four, BDI battery display interface module is by light-coupled isolation RS485-2 communication interface, light-coupled isolation RS485-3 communication interface, light-coupled isolation RS485-4 communication interface, light-coupled isolation RS485-5 communication interface connects four detecting units, the positive pole of BDI battery display interface module connects the positive pole of ferric phosphate lithium cell group, the earth terminal of BDI battery display interface module connects the negative pole of ferric phosphate lithium cell group, BDI battery display interface module connects current detection circuit, the negative pole of ferric phosphate lithium cell group connects the negative pole of photovoltaic battery panel charge-discharge end by current detection circuit, BDI battery display interface module connects the positive pole of photovoltaic battery panel charge-discharge end by charge-discharge control circuit, BDI battery display interface module connects PC by EMS memory management module, BDI battery display interface module connects LCD liquid crystal display screen by light-coupled isolation RS485-1 communication interface, BDI battery display interface module also connects start stop switch.
Further, described charge-discharge control circuit connects the positive pole of photovoltaic battery panel charge-discharge end by relay.
The beneficial effects of the utility model are that structure is simple, can meet battery management and the maintenance of large quantity.
Accompanying drawing explanation
Fig. 1 is the utility model system module structural representation.
In figure, 1. ferric phosphate lithium cell group, 2. detecting unit, 3.BDI battery display interface module, 4. current detection circuit, 5. charge-discharge control circuit, 6.EMS memory management module, 7.PC machine, 8.LCD liquid crystal display screen, 9. start stop switch, 10. relay.
Embodiment
Below in conjunction with embodiment, the utility model is described in detail.
The utility model system as shown in Figure 1, comprise ferric phosphate lithium cell group 1, the positive pole of each the block ferric phosphate lithium cell in ferric phosphate lithium cell group 1 connects detecting unit 2 by voltage sampling circuit, the negative pole of each the block ferric phosphate lithium cell in ferric phosphate lithium cell group 1 connects detecting unit 2 by temperature sampling circuit, detecting unit 2 has four, BDI battery display interface module 3 is by light-coupled isolation RS485-2 communication interface, light-coupled isolation RS485-3 communication interface, light-coupled isolation RS485-4 communication interface, light-coupled isolation RS485-5 communication interface connects four detecting units 2, the positive pole of BDI battery display interface module 3 connects the positive pole of ferric phosphate lithium cell group 1, the earth terminal of BDI battery display interface module 3 connects the negative pole of ferric phosphate lithium cell group 1, BDI battery display interface module 3 connects current detection circuit 4, , the negative pole of ferric phosphate lithium cell group 1 connects the negative pole of photovoltaic battery panel charge-discharge end by current detection circuit 4, BDI battery display interface module 3 connects the positive pole of photovoltaic battery panel charge-discharge end by charge-discharge control circuit 5, BDI battery display interface module 3 connects PC 7 by EMS memory management module 6, the data of record are uploaded to PC 7 by Ethernet, all battery data recorded informations that this backstage EMS transmits to PC 7 for storing BDI battery display interface module 3, BDI battery display interface module 3 connects LCD liquid crystal display screen 8 by light-coupled isolation RS485-1 communication interface, BDI battery display interface module 3 also connects start stop switch 9.Conveniently control charging, charge-discharge control circuit 5 also connects the positive pole of photovoltaic battery panel charge-discharge end by relay 10.
BMS module in the utility model, comprises four battery detection unit 2 (Battery Sense Unit is called for short BSU) module, 1 battery display interface (Battery Display Interface is called for short BDI) module; During application the utility model photovoltaic energy storage BSM, photovoltaic panel is charged to ferric phosphate lithium cell group 1 by rectifier, starting resistor sample circuit, temperature sampling circuit, current detection circuit 4 obtain corresponding voltage, temperature and current data from battery pack, and send BDI battery display interface module 3 to by light-coupled isolation RS485-2, RS485-3, RS485-4, RS485-5 communication interface, BDI battery display interface module 3 pairs of data analysis, and judge whether data reach the conditions such as overvoltage, under-voltage, overcurrent, short circuit.If reach overvoltage, then send charging closing information to charge-discharge control circuit 5, relay 10 disconnects, and alarm is simultaneously sounded, the red light rule flicker of simulation on LCD liquid crystal display screen 8, and charging stops; If reach under-voltage, overcurrent or short circuit condition, then send discharge stop signal to charge-discharge control circuit 5, relay 10 disconnects, and alarm is simultaneously sounded, and the red light rule flicker of simulation on LCD liquid crystal display screen 8, electric discharge is closed.During normal work, by light-coupled isolation RS485-2, RS485-3, RS485-4, RS485-5 communication interface, the LCD liquid crystal display screen 8 be connected in BDI battery display interface module 3 shows battery status information in ferric phosphate lithium cell group 1 respectively, and can check and configuration parameter, check the state of battery at any time.
The utility model proposes a kind of photovoltaic energy storage BMS system based on ferric phosphate lithium cell, not only can change single ferric phosphate lithium cell group very easily; Also can expand battery pack.This practical BMS system is not only easily safeguarded, turn improves the fail safe of energy storaging product simultaneously; Remote monitoring battery state, makes the later maintenance cost of energy storaging product greatly reduce.And the utility model system configuration is simple, and low-power consumption, reliability is high.
The above is only to better embodiment of the present utility model, not any pro forma restriction is done to the utility model, every any simple modification above execution mode done according to technical spirit of the present utility model, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (2)
1. a photovoltaic energy storage BMS system, it is characterized in that: comprise ferric phosphate lithium cell group (1), the positive pole of each the block ferric phosphate lithium cell in ferric phosphate lithium cell group (1) connects detecting unit (2) by voltage sampling circuit, the negative pole of each the block ferric phosphate lithium cell in ferric phosphate lithium cell group (1) connects detecting unit (2) by temperature sampling circuit, detecting unit (2) has four, BDI battery display interface module (3) is by light-coupled isolation RS485-2 communication interface, light-coupled isolation RS485-3 communication interface, light-coupled isolation RS485-4 communication interface, light-coupled isolation RS485-5 communication interface connects four detecting units (2), the positive pole of BDI battery display interface module (3) connects the positive pole of ferric phosphate lithium cell group (1), the earth terminal of BDI battery display interface module (3) connects the negative pole of ferric phosphate lithium cell group (1), BDI battery display interface module (3) connects current detection circuit (4), the negative pole of ferric phosphate lithium cell group (1) connects the negative pole of photovoltaic battery panel charge-discharge end by current detection circuit (4), BDI battery display interface module (3) connects the positive pole of photovoltaic battery panel charge-discharge end by charge-discharge control circuit (5), BDI battery display interface module (3) connects PC (7) by EMS memory management module (6), BDI battery display interface module (3) connects LCD liquid crystal display screen (8) by light-coupled isolation RS485-1 communication interface, BDI battery display interface module (3) also connects start stop switch (9).
2. according to photovoltaic energy storage BMS system a kind of described in claim 1, it is characterized in that: described charge-discharge control circuit (5) connects the positive pole of photovoltaic battery panel charge-discharge end by relay (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401295.3U CN204721075U (en) | 2015-06-11 | 2015-06-11 | A kind of photovoltaic energy storage BMS system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401295.3U CN204721075U (en) | 2015-06-11 | 2015-06-11 | A kind of photovoltaic energy storage BMS system |
Publications (1)
| Publication Number | Publication Date |
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| CN204721075U true CN204721075U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520401295.3U Expired - Fee Related CN204721075U (en) | 2015-06-11 | 2015-06-11 | A kind of photovoltaic energy storage BMS system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917276A (en) * | 2015-06-11 | 2015-09-16 | 三峡大学 | Photovoltaic energy storage BMS system |
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2015
- 2015-06-11 CN CN201520401295.3U patent/CN204721075U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917276A (en) * | 2015-06-11 | 2015-09-16 | 三峡大学 | Photovoltaic energy storage BMS system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160611 |
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| CF01 | Termination of patent right due to non-payment of annual fee |