CN203553992U - An energy storage battery pack monitoring and dynamic equalization apparatus - Google Patents
An energy storage battery pack monitoring and dynamic equalization apparatus Download PDFInfo
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- CN203553992U CN203553992U CN201320638721.6U CN201320638721U CN203553992U CN 203553992 U CN203553992 U CN 203553992U CN 201320638721 U CN201320638721 U CN 201320638721U CN 203553992 U CN203553992 U CN 203553992U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 100
- 238000012544 monitoring process Methods 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims description 3
- 239000000178 monomer Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
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- 238000010248 power generation Methods 0.000 description 1
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Abstract
An energy storage battery pack monitoring and dynamic equalization apparatus is characterized in that: the energy storage battery pack monitoring and dynamic equalization apparatus is composed an inter-energy-storage-battery-pack equalization unit A (1) and an intra-energy-storage-battery-string equalization unit B (2). The inter-energy storage battery pack equalization unit A (1) and the intra-energy storage battery string equalization unit B (2) employ communication interfaces to carry out information exchange, and electrical series connection is carried out through equalization interfaces. The apparatus can automatically acquires information such as voltages, temperatures and alarms of energy storage batteries, so that dynamic monitoring of an energy storage battery string can be realized; and according to index states of the energy storage batteries, battery electric quantities among different pack strings are equalized dynamically; and especially, electric quantity equalization problems during the existence of differences of energy storage battery monomer original states are solved relatively well, and the energy storage battery pack monitoring and dynamic equalization apparatus has a good application prospect.
Description
Technical field
The utility model relates to the control device in distributed power generation and energy storage field, refers in particular to the monitoring of energy-storage battery group string and dynamic balancing device.
Background technology
Energy-storage battery, as a kind of device very with application prospect, has now started application in energy-accumulating power station, electric automobile.But while applying for the energy-storage battery series connection of some, owing to there are differences in energy-storage battery monomer performance, when especially the initial condition of energy-storage battery monomer there are differences, the electric weight dynamic equalization ability between battery pack string is directly connected to the operation level of energy-storage battery entirety.
Summary of the invention
The purpose of this utility model is just in order to solve above-mentioned deficiency, and propose a kind of energy-storage battery group string, monitor and dynamic balancing device, it has the interior Pressure and Control of voltage signal acquisition, temperature signal collection, warning message collection, string to energy-storage battery monomer, and between different battery pack, carries out the function of electric quantity balancing.
Function of the present utility model is achieved by the following technical solution:
The monitoring of energy-storage battery group string and dynamic balancing device, the utility model feature is to consist of balanced unit B in energy-storage battery Homogeneity between groups unit A and energy-storage battery string; In energy-storage battery Homogeneity between groups unit A and energy-storage battery string, balanced unit B adopts communication interface to carry out information exchange, and carries out electric series winding by balanced interface; Wherein:
Energy-storage battery Homogeneity between groups unit A comprises variable connector, controlled buffer circuit, and balanced interface A, communication interface A for being connected with balanced unit B in energy-storage battery string; Wherein balanced interface A is connected in series with variable connector, and variable connector is connected in series with controlled buffer circuit;
In energy-storage battery string, balanced unit B comprises variable connector, balanced interface B, communication interface B, storage bodies collection and balanced interface; Wherein balanced interface B is connected in series with variable connector, and variable connector is connected in series with balanced interface with storage bodies collection.
In the energy-storage battery string that the utility model is connected with energy-storage battery Homogeneity between groups unit A, balanced unit B is balanced unit in one or more multiple energy-storage battery string.
This device can gather the information such as voltage, temperature and the warning of energy-storage battery automatically, realizes the dynamic monitoring to energy-storage battery group string performance; And can be according to the index state of energy-storage battery, the equilibrium of the battery electric quantity between dynamically not going here and there on the same group.Especially the electric quantity balancing problem in the time of better solving energy-storage battery monomer initial condition and there are differences, has a good application prospect.
Below in conjunction with drawings and Examples, further set forth the utility model content.
Accompanying drawing explanation
Fig. 1 is the monitoring of energy-storage battery group string and dynamic balancing device function and connection layout;
Fig. 2 is the utility model practical application structural representation.
Embodiment
See Fig. 1, the monitoring of energy-storage battery group string and dynamic balancing device, the utility model feature is to consist of balanced unit B2 in energy-storage battery Homogeneity between groups unit A1 and energy-storage battery string; In energy-storage battery Homogeneity between groups unit A1 and energy-storage battery string, balanced unit B2 adopts communication interface to carry out information exchange, and carries out electric series winding by balanced interface; Wherein:
Energy-storage battery Homogeneity between groups unit A1 comprises variable connector 4, controlled buffer circuit 7, and balanced interface A5, communication interface A6 for being connected with balanced unit B2 in energy-storage battery string; Wherein balanced interface A5 is connected in series with variable connector 4, and variable connector 4 is connected in series with controlled buffer circuit 7;
In energy-storage battery string, balanced unit B2 comprises variable connector 4, balanced interface B5, communication interface B6, storage bodies collection and balanced interface 8; Wherein balanced interface B5 is connected in series with variable connector 4, and variable connector 4 is connected in series with balanced interface 8 with storage bodies collection.
In the energy-storage battery string that the utility model is connected with energy-storage battery Homogeneity between groups unit A1, balanced unit B2 is balanced unit 2 in one or more multiple energy-storage battery string.
As Fig. 1, this micro-net control device is applied to information gathering and the control to multiple energy-storage battery bodies, voltage signal acquisition, temperature signal collection, Pressure and Control, the warning message collection of realization to energy-storage battery monomer, and between different battery strings, carry out electric quantity balancing etc.This device is comprised of two parts of balanced unit in energy-storage battery Homogeneity between groups unit and energy-storage battery string.Wherein, energy-storage battery Homogeneity between groups unit emphasis is realized the information exchange with the interior balancer of different energy-storage battery strings, and does not go here and there on the same group a calculating of battery performance difference degree; In energy-storage battery string, balanced unit is realized the interior Pressure and Control of voltage signal acquisition, temperature signal collection, warning message collection, string to energy-storage battery monomer.
Coordination process between two-stage control unit is as follows: the equilibrium with a string interior battery is realized by balanced unit in energy-storage battery string, when continuing to reach threshold values detaV1 in the time that the voltage differences index of battery in string is being specified, start in string balancedly, reduce to go here and there the otherness of voltage between interior battery; When continuing to reach threshold values detaV2 in the time that between the different groups of whole energy-storage battery, the voltage indexes between certain two battery is being specified, by energy-storage battery Homogeneity between groups unit starting dynamic equalization function, now in energy-storage battery string, equalization function exits.The course of work is: by variable connector, complete the selection of the energy-storage battery monomer to specifying, then by equilibrium line, on energy-storage battery Homogeneity between groups unit, two batteries are connected, then control the closure of circuit breaker in variable connector and controlled buffer circuit, realize two equilibriums between battery.Along with equalizing circuit work, euqalizing current continuous decrease, when electric current is less than threshold values detaI, balanced end.Now, circuit breaker disconnection, the variable connector controlled in controlled buffer circuit disconnect, nothing electrical connection between two batteries.Finally, by control, give balanced unit in energy-storage battery string, realize balanced control in string.
As Fig. 2, it is the practical example explanation of this device.In an actual energy storage engineering, need to be generally to connect to hundreds of energy-storage batteries by tens of, and in the situation that occurring that some battery is changed in application process, can not guarantee the proximity of initial condition between battery, thereby can have influence on the performance of cell integrated performance.This device can solve this technical problem preferably.
16 energy-storage batteries of balanced unit general management in this energy-storage battery string in actual applications, by balanced/gather line to realize going here and there the collection of performance of interior each battery, comprise voltage signal, temperature signal, warning message.And realize 16 Pressure and Control between battery.In energy-storage battery string, balanced unit and energy-storage battery Homogeneity between groups unit adopt Modbus communication protocol to carry out information exchange, and emphasis is uploaded the voltage signal of battery, if when reporting to the police appears in certain battery, and the equalization function between locking group.Balanced unit generally adopts direct current 24V power supply in energy-storage battery string, if when condition of power supply can not meet the demands, separately configures a 220VAC and be transformed into the Switching Power Supply of 24VDC, and capacity is not less than 50VA.
Energy-storage battery Homogeneity between groups unit, realizes the management to balanced unit in different energy-storage battery strings, can manage at most balanced unit in 32 energy-storage battery strings, and this device maximum can be managed 512 energy-storage batteries.
The main function in energy-storage battery Homogeneity between groups unit is that the energy-storage battery unit between difference string is carried out to equilibrium, and monitor the running status of balanced unit in different energy-storage battery strings, when balanced unit in energy-storage battery string occur when abnormal and alarm and on the alarming information of delivering newspaper.
In Fig. 2, suppose that the voltage difference between No. 16 battery of balanced unit in No. 1 battery of balanced unit in #1 energy-storage battery string and #2 energy-storage battery string continued to be greater than threshold values detaV2 in 5 minutes, in #1 and #2 energy-storage battery string, balanced unit exits internal balance, by energy-storage battery Homogeneity between groups unit, realizes balanced control.Now, by the variable connector in balanced unit in #1 and #2 energy-storage battery string, choose respectively No. 1 battery and No. 16 battery, then by the equilibrium line being connected with energy-storage battery Homogeneity between groups unit, through balanced interface and variable connector, be connected with controlled buffer circuit again, thereby form an effective electric link.Energy-storage battery Homogeneity between groups unit is judging that control logic and operating process are correct in after abnormal, and the circuit breaker in closed controlled buffer circuit, realizes the equilibrium of voltage between two batteries.
Along with equalizing circuit work, euqalizing current continuous decrease, when electric current is less than threshold values detaI, balanced end.Now, the circuit breaker of controlling in controlled buffer circuit disconnects, and the variable connector of energy-storage battery Homogeneity between groups unit disconnects, and in the energy-storage battery string at two battery places, the variable connector in balanced unit disconnects, at this moment nothing electrical connection between two batteries.Complete the overall process of Homogeneity between groups.
Finally, by control, give balanced unit in energy-storage battery string, return to balanced control in string.
Energy-storage battery Homogeneity between groups unit generally adopts direct current 24V power supply, if when condition of power supply can not meet the demands, separately configures a 220VAC and be transformed into the Switching Power Supply of 24VDC, and capacity is not less than 100VA.
Claims (2)
1. the monitoring of energy-storage battery group string and dynamic balancing device, is characterized in that, by energy-storage battery Homogeneity between groups unit A(1) and the interior balanced unit B(2 of energy-storage battery string) form; Energy-storage battery Homogeneity between groups unit A(1) and the interior balanced unit B(2 of energy-storage battery string) adopt communication interface to carry out information exchange, and carry out electric series winding by balanced interface; Wherein:
Energy-storage battery Homogeneity between groups unit A(1) comprise variable connector (4), controlled buffer circuit (7), and for balanced unit B(2 in energy-storage battery string) connected balanced interface A(5), communication interface A(6); Wherein balanced interface A(5) be connected in series with variable connector (4), variable connector (4) is connected in series with controlled buffer circuit (7);
Balanced unit B(2 in energy-storage battery string) comprise variable connector (4), balanced interface B(5), communication interface B(6), storage bodies collection and balanced interface (8); Wherein balanced interface B(5) be connected in series with variable connector (4), variable connector (4) is connected in series with balanced interface (8) with storage bodies collection.
2. energy-storage battery group string monitoring according to claim 1 and dynamic balancing device, it is characterized in that, with energy-storage battery Homogeneity between groups unit A(1) balanced unit B(2 in the energy-storage battery string that is connected) be balanced units (2) in one or more multiple energy-storage battery strings.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320638721.6U CN203553992U (en) | 2013-10-16 | 2013-10-16 | An energy storage battery pack monitoring and dynamic equalization apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320638721.6U CN203553992U (en) | 2013-10-16 | 2013-10-16 | An energy storage battery pack monitoring and dynamic equalization apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871033A (en) * | 2016-05-30 | 2016-08-17 | 江苏罗思韦尔电气有限公司 | Rapid balance control method and device for power battery pack |
| CN108306066A (en) * | 2018-02-07 | 2018-07-20 | 成都信息工程大学 | Active equalization control method between battery pack Nei Bao and packet |
-
2013
- 2013-10-16 CN CN201320638721.6U patent/CN203553992U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871033A (en) * | 2016-05-30 | 2016-08-17 | 江苏罗思韦尔电气有限公司 | Rapid balance control method and device for power battery pack |
| CN108306066A (en) * | 2018-02-07 | 2018-07-20 | 成都信息工程大学 | Active equalization control method between battery pack Nei Bao and packet |
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Granted publication date: 20140416 |
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| CX01 | Expiry of patent term |