CN104917276A - Photovoltaic energy storage BMS system - Google Patents
Photovoltaic energy storage BMS system Download PDFInfo
- Publication number
- CN104917276A CN104917276A CN201510319282.6A CN201510319282A CN104917276A CN 104917276 A CN104917276 A CN 104917276A CN 201510319282 A CN201510319282 A CN 201510319282A CN 104917276 A CN104917276 A CN 104917276A
- Authority
- CN
- China
- Prior art keywords
- bdi
- display interface
- interface module
- connects
- battery
- 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 13
- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000002955 isolation Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 8
- 239000005955 Ferric phosphate Substances 0.000 claims description 30
- 229940032958 ferric phosphate Drugs 0.000 claims description 30
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 claims description 30
- 229910000399 iron(III) phosphate Inorganic materials 0.000 claims description 30
- 229910052744 lithium Inorganic materials 0.000 claims description 30
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 abstract 4
- 230000003993 interaction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 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
- H02J7/34—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
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
-
- 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
Abstract
The present invention discloses a photovoltaic energy storage BMS system. A lithium iron phosphate battery pack is connected with detection units by voltage sampling circuits and temperature sampling circuits; a BDI batter display interface module is connected with the detection units by photo coupler isolation communication interfaces; an anode of the BDI batter display interface module is connected with an anode of the lithium iron phosphate battery pack; the grounding end of the BDI batter display interface module is connected with a cathode of the lithium iron phosphate battery pack; the BDI batter display interface module is connected with a current detection circuit; the cathode of the lithium iron phosphate battery pack is connected with a cathode of the charge-discharge end of a photovoltaic cell panel by the current detection circuit; the BDI battery display interface module is connected with an anode of the charge-discharge end of the photovoltaic cell panel by a charge-discharge control circuit; the BDI battery display interface module is connected with a PC machine by an EMS storage management module; the BDI battery display interface module is connected with an LCD liquid crystal screen; and the BDI battery display interface module is also connected with a start-stop switch. The photovoltaic energy storage BMS system has the beneficial effects that the structure is simple; and the requirement for managing and maintaining a large number of batteries can be met.
Description
Technical field
The invention belongs to photovoltaic energy storage technical field, relate 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.
Summary of the invention
The object of the present invention is to provide a kind of photovoltaic energy storage BMS system, solve existing battery management system complex structure, the problem of the battery management of large quantity and the demand of man-machine interaction aspect cannot be met.
The technical solution adopted in the present invention 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 invention has the beneficial effects as follows that structure is simple, battery management and the maintenance of large quantity can be met.
Accompanying drawing explanation
Fig. 1 is present system modular structure schematic diagram.
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 present invention is described in detail.
Present 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 present invention, 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; When applying photovoltaic energy storage BSM of the present invention, 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 present invention 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 present system structure is simple, and low-power consumption, reliability is high.
The above is only to better embodiment of the present invention, not any pro forma restriction is done to the present invention, every any simple modification done above execution mode according to technical spirit of the present invention, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
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 |
|---|---|---|---|
| CN201510319282.6A CN104917276A (en) | 2015-06-11 | 2015-06-11 | Photovoltaic energy storage BMS system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319282.6A CN104917276A (en) | 2015-06-11 | 2015-06-11 | Photovoltaic energy storage BMS system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104917276A true CN104917276A (en) | 2015-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510319282.6A Pending CN104917276A (en) | 2015-06-11 | 2015-06-11 | Photovoltaic energy storage BMS system |
Country Status (1)
| Country | Link |
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| CN (1) | CN104917276A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860960A (en) * | 2017-10-23 | 2018-03-30 | 熊新家 | A kind of charging equipment assessed cell voltage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201587377U (en) * | 2009-12-30 | 2010-09-22 | 浙江吉利汽车研究院有限公司 | Lithium iron phosphate battery management system |
| CN201773918U (en) * | 2009-11-10 | 2011-03-23 | 江苏海四达电源股份有限公司 | Power lithium storage battery pack management system |
| CN203747460U (en) * | 2014-02-13 | 2014-07-30 | 北京海特远舟新能源科技有限公司 | Novel lithium battery BMS power supply system |
| CN203761319U (en) * | 2014-03-22 | 2014-08-06 | 深圳市德兰明海科技有限公司 | Comprehensive type distributed photovoltaic energy storage system |
| CN203788024U (en) * | 2014-04-08 | 2014-08-20 | 江苏博强新能源科技有限公司 | Lithium iron phosphate battery energy storage system |
| CN204721075U (en) * | 2015-06-11 | 2015-10-21 | 三峡大学 | A kind of photovoltaic energy storage BMS system |
-
2015
- 2015-06-11 CN CN201510319282.6A patent/CN104917276A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201773918U (en) * | 2009-11-10 | 2011-03-23 | 江苏海四达电源股份有限公司 | Power lithium storage battery pack management system |
| CN201587377U (en) * | 2009-12-30 | 2010-09-22 | 浙江吉利汽车研究院有限公司 | Lithium iron phosphate battery management system |
| CN203747460U (en) * | 2014-02-13 | 2014-07-30 | 北京海特远舟新能源科技有限公司 | Novel lithium battery BMS power supply system |
| CN203761319U (en) * | 2014-03-22 | 2014-08-06 | 深圳市德兰明海科技有限公司 | Comprehensive type distributed photovoltaic energy storage system |
| CN203788024U (en) * | 2014-04-08 | 2014-08-20 | 江苏博强新能源科技有限公司 | Lithium iron phosphate battery energy storage system |
| CN204721075U (en) * | 2015-06-11 | 2015-10-21 | 三峡大学 | A kind of photovoltaic energy storage BMS system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860960A (en) * | 2017-10-23 | 2018-03-30 | 熊新家 | A kind of charging equipment assessed cell voltage |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150916 |