CN203562822U - A system for the butt joint and the configuration between a multi-module backup battery management system and a DC bus - Google Patents
A system for the butt joint and the configuration between a multi-module backup battery management system and a DC bus Download PDFInfo
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- CN203562822U CN203562822U CN201320542495.1U CN201320542495U CN203562822U CN 203562822 U CN203562822 U CN 203562822U CN 201320542495 U CN201320542495 U CN 201320542495U CN 203562822 U CN203562822 U CN 203562822U
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Abstract
The utility model relates to a method and a system for the butt joint and the configuration between a multi-module backup battery management system and a DC bus. The DC bus acquires electricity from external power supply equipment and provides electricity for electrical appliances. The multi-module backup battery management system is in butt joint with the DC bus, so that the real-time charging and discharging control between a multi-module backup battery or battery pack and the DC bus and functions of detecting, alarming and the like are achieved. When the voltage of the DC bus is decreased to a threshold value, the multi-module battery or battery pack discharges electricity to the DC bus to enable the DC bus to return to a normal voltage range. When the DC bus returns to the normal voltage to supply power, the DC bus uses a charging function circuit to continuously or intermittently charge the multi-module battery or battery pack so as to guarantee that the multi-module battery or battery pack may maintain a capability of discharging electricity of the DC bus again at any time.
Description
Technical field
The utility model belongs to power supply or circuit arrangement or system and the electric energy storage system field of distribution, is specifically related to the interaction technique of docking of reserce cell management system and corresponding DC bus.
Background technology
The centralized battery management system of the many employings of battery management system in prior art at present, it mainly comprises the Acquisition Circuit of the data such as total voltage, electric current and the temperature of battery pack, the buffer circuit of voltage, the ON-OFF control circuit of high pressure and fan, A/D change-over circuit, data storage and transport module etc.The operation principle of centralized battery management system is by the data acquisition module of front end, to be carried out the collection of voltage, electric current and temperature, then data are carried out to unified conversion, processing and storage, and the control of some necessity, finally reach the supervisory function bit to battery, to guarantee battery operated fail safe.
The weak point of centralized battery management system mainly contain following some:
(1) battery pack is carried out to signals collecting, each battery cell can not be detected, low precision is high to signal processing requirement;
(2) its extensibility a little less than, adaptability to changes is not strong, is difficult to adapt to load variations;
(3) when battery failures, can only replace whole battery pack.
It is a kind of advanced person DC bus backup emergency service method that DC bus adopts multimode reserce cell management system.This is the associated methods just producing after multimode reserce cell management system occurs, can effectively overcome the defect of centralized fashion.
Multimode reserce cell management system is a system being formed by software and hardware device combination, its basic function has: the 1) working condition of monitoring battery pack and cell, the voltage of such as single battery, assembled battery total voltage, operating current, ambient temperature etc.; 2) working condition of management battery, by the open circuit voltage of battery and the dump energy of charge and discharge Current calculation battery, avoids occurring overcharging, crosses the situation such as put, overheated; 3) protection battery, and alarm, avoids battery operated, under extreme condition, shorter battery life occurs, and damages, and even blast, on fire etc. endangered the accident of personal safety.
According to the management function of multimode reserce cell management system, by it with exchange or DC bus docking, to can realize timely and effectively backup functionality when exchanging or DC bus occurs power supply trouble, carry out all or part of power supply function to electrical appliance of shouldering.Multimode reserce cell management system with exchange or docking and the configuring technical of DC bus are the key technologies that this system realizes busbar fault emergency service and backup functionality.
Take distributed power supply system as example, how based on DC bus framework, as shown in Figure 1, access DC bus is changed by DC/DC in photovoltaic battery array, fuel cell, storage battery, energy storage device and other forms of distributed power generation unit etc., and DC bus change by DC/DC or the access electrical network such as DC/AC or the load of connection AC/DC again.Multimode reserce cell management system under existing DC bus framework is technological difficulties and focus with the administrative skill of docking of DC bus.Distributed energy management solutions technology based on DC bus mode focuses on solving and supplies, needs, stores up in three's macro-relation, and current existing technical scheme lacks system and the micromanagement technology that the multimode reserce cell management system under macro-management is docked with DC bus.
Compared with prior art, the utility model adopt the advantage of distributed battery management system mainly contain following some:
(1) there is higher efficiency of energy utilization;
(2) its reliability is higher, and availability is better;
Its stability is higher, supports large capacity energy storage, and dilatation flexibly.
Summary of the invention
The utility model proposes the system that a kind of multimode battery or battery pack are docked with DC bus, for realizing multimode battery or the real-time control of discharge of battery pack to DC bus, and realize DC bus is charged with standby in real time, optional super capacitor group seamlessly transits.
Referring to Fig. 2, show the schematic diagram that is related to of DC bus and multimode reserce cell management system.Docking system of the present utility model comprises DC bus, multimode reserce cell management system etc.; The direct current energy and the power consumption equipment that by AC/DC, DC/DC or other method of supplying power to, are provided are provided DC bus, specifically, as shown in Figure 2, DC bus 12V (or other magnitude of voltage, as 48V etc.) from power supply unit (as AC/DC or DC/DC converter power or other method of supplying power to), obtain electric current, offer electrical appliance (as server).Multimode reserce cell management system hangs on DC bus by the system of docking and configuring, and realizes the real-time charge and discharge control of multimode reserce cell or battery pack and DC bus, and the function such as detection alarm.
According to the utility model, the utility model relates in one aspect to the system of docking of a kind of multimode reserce cell management system and DC bus and configuration, wherein, DC bus and externally fed equipment and electrical appliance are connected in series, DC bus obtains electric energy from externally fed equipment, and offers electrical appliance; Real-Time Monitoring d-c bus voltage value, and Real-Time Monitoring multimode reserce cell management system mode of operation, multimode reserce cell management system is docked configuration with DC bus, according to the magnitude of voltage of DC bus, DC bus is carried out to real-time charge and discharge control, and detection alarm function.Multimode reserce cell management system comprises multimode battery or battery pack.
When monitoring DC bus-bar voltage and be reduced to threshold value, multimode reserce cell management system is operated in powering mode, control circuit sends switch controlling signal, connect discharge paths, multimode battery or battery pack are discharged to DC bus, until DC bus returns to after normal voltage scope, control circuit sends switch controlling signal, disconnects discharge paths.When monitoring DC bus, return to after normal voltage power supply, multimode reserce cell management system is operated in charge mode, control circuit sends switch controlling signal, connect charging paths, DC bus is to multimode battery or batteries charging, to guarantee that multimode battery or battery pack can maintain the ability that can again discharge to DC bus at any time.When monitoring multimode reserce cell management system, be operated in charge mode lower time, between multimode battery or battery pack and DC bus, by control switch, be connected charge function circuit, by the control of charge function circuit, multimode battery or battery pack carried out continuously or intermittent charge.
Alternatively, between multimode battery or battery pack and DC bus, the super capacitor group branch road in parallel with above-mentioned discharge paths and above-mentioned charging paths is set, assists multimode battery or battery pack seamlessly transitting DC bus electric discharge or charging process; When DC bus-bar voltage is reduced to threshold value, control circuit sends switch controlling signal, by the access of super capacitor group, assists multimode battery or battery pack to discharge to DC bus; When DC bus returns to after normal voltage power supply, DC bus is to the charging of super capacitor group, in order to assisting at any time the discharging action of multimode battery or battery pack.When monitoring multimode reserce cell management system, be operated in charge mode lower time, charge function circuit is connected to super capacitor by control switch, by the control of charge function circuit, super capacitor is carried out continuously or intermittent charge.
According to the utility model, the utility model relates to the system of docking of a kind of multimode reserce cell management system and DC bus and configuration on the other hand, wherein, DC bus and externally fed equipment and electrical appliance are connected in series, DC bus obtains electric energy from externally fed equipment, and offers electrical appliance; Multimode reserce cell management system, docks configuration with DC bus, according to the d-c bus voltage value of Real-Time Monitoring, DC bus is carried out to real-time charge and discharge control, and detection alarm function.Multimode reserce cell management system comprises multimode battery or battery pack.
Between multimode battery or battery pack and DC bus, be connected discharge paths, discharge paths comprises one or more control switchs, when monitoring DC bus-bar voltage and be reduced to threshold value, multimode reserce cell management system is operated in powering mode, and control circuit sends switch controlling signal, connects discharge paths, multimode battery or battery pack are discharged to DC bus, until DC bus returns to after normal voltage scope, control circuit sends switch controlling signal, disconnects discharge paths.Between multimode battery or battery pack and DC bus, be connected charging paths, discharge paths comprises one or more control switchs, when monitoring DC bus, return to after normal voltage power supply, multimode reserce cell management system is operated in charge mode, control circuit sends switch controlling signal, connect charging paths, DC bus is to multimode battery or batteries charging, to guarantee that multimode battery or battery pack can maintain the ability that can again discharge to DC bus at any time.In charging paths, be also connected in series charge function circuit; When monitoring multimode reserce cell management system, be operated in charge mode lower time, between multimode battery or battery pack and DC bus, by control switch, be connected charge function circuit, by the control of charge function circuit, multimode battery or battery pack carried out continuously or intermittent charge.
Alternatively, super capacitor group branch road is set between multimode battery or battery pack and DC bus, it is in parallel with discharge paths and charging paths; Super capacitor group branch road assists multimode battery or battery pack seamlessly transitting DC bus electric discharge or charging process; When DC bus-bar voltage is reduced to threshold value, control circuit sends switch controlling signal, by the access of super capacitor group, assists multimode battery or battery pack to discharge to DC bus; When DC bus returns to after normal voltage power supply, DC bus is to the charging of super capacitor group, in order to assisting at any time the discharging action of multimode battery or battery pack.Charge function circuit is connected to super capacitor by control switch; When monitoring multimode reserce cell management system, be operated in charge mode lower time, by the control of charge function circuit, super capacitor carried out continuously or intermittent charge.
As can be seen here, the utility model docks multimode reserce cell management system and fit together with DC bus, realizes several functions simultaneously:
1. from DC bus power taking, battery or battery pack multimode reserce cell management system are charged in time;
2. the power supply trouble of pair DC bus carries out real-time detection and response;
3. realize DC bus or by the electric discharge of DC bus, partly or entirely substitute the power supply function of the original electrical appliance load of DC bus;
4. in electric discharge transfer process, keep the specification of DC bus-bar voltage and electric current to meet the requirement of electrical appliance load, and realize the functions such as current-sharing;
5. other are effective function that DC bus powered fault is backed up to power supply that realizes, etc.
four, accompanying drawing explanation
Fig. 1 is the distributed power supply system based under DC bus framework;
Fig. 2 is the schematic diagram that is related to of DC bus and multimode reserce cell management system;
Fig. 3 is the system schematic of DC bus and the docking of multimode reserce cell management system and configuration.
five, embodiment
As shown in Figure 3, be the system schematic of the docking of DC bus and multimode reserce cell management system and configuration.Wherein, this system comprises the compositions such as DC bus, multimode battery or battery pack, charge function circuit, switching circuit and control circuit thereof, super capacitor (optional); DC bus is realized and being electrically connected by discharge paths or charging paths with multimode battery or battery pack, and switching circuit and control circuit thereof are separately positioned in discharge paths and charging paths, this branch road are carried out to the control of conducting or shutoff.
In Fig. 3, listed K switch 1 to K6 all can adopt unidirectional or bidirectional switch.Concrete switchtype can need to select according to actual design, and the technical solution of the utility model comprises all possible switchtype and switch form.Particularly, K switch 1 and K2 realize the opening and closing of charge function on charge path.According to the requirement of the function of system and specific implementation, K switch 1 and K2 may be only with one, or two use all, or can with other switch merging etc. in Fig. 3, it is for completing the instant realization of charge function by switch controlling signal.K switch 3 and K4 are also by switch controlling signal control, realize the electric discharge of super capacitor (group).K switch 3 and K4 may be only with one, or two use all, or can merge etc. with other switch in Fig. 3 the instant realization that it discharges for complete super capacitor (group) by switch controlling signal.K switch 5 is for charging to super capacitor (group).K switch 6 is discharged to DC bus from multimode battery or battery pack for controlling, and discharging current is shouldered the need for electricity of load, thus the part or all of original function of supplying power of alternative DC bus.
The docking system specific works principle of anticipating shown in Fig. 3 is as follows:
Real-Time Monitoring d-c bus voltage value, when DC bus because upper level power supply unit breaks down or when any other reason causes that lower voltage arrives threshold value, multimode reserce cell management system is operated in powering mode, control device sends switch controlling signal, it is K switch 6 closures that docking facilities is opened K switch 6(automatically), multimode battery or battery pack are discharged to DC bus, recover the object of normal voltage scope to reach DC bus, guarantee the continuous operation of electrical appliance.
When the original upper level power supply unit of DC bus restores electricity and supports after busbar voltage, DC bus returns to after normal voltage power supply, and K switch 6 will be turn-offed (being that K switch 6 is opened), and multimode reserce cell management system is operated in charge mode.When not carrying out auxiliary power supply, K switch 1 and K2 will be operated by control signal, be that turn on-switch K1 and K2 to be communicated with charge function circuit between multimode battery or battery pack and DC bus, DC bus is by charge function circuit, control is carried out continuously or intermittent charge multimode battery pack, to guarantee that multimode battery pack system can maintain the ability that can again discharge to DC bus at any time.
Alternatively, can between multimode battery or battery pack and DC bus, be connected super capacitor (group) branch road, this branch road is relation in parallel with discharge paths or charging paths.K switch 3 and K switch 4 are to control the switch of super capacitor group branch road, for super capacitor group is accessed to the electric discharge to DC bus, assist multimode battery pack DC bus being discharged or exiting seamlessly transitting of discharge process.K switch 5 is also operated by control signal, completes the charge function to super capacitor group, prepares against the action of assisting the electric discharge of multimode battery pack at any time or exiting electric discharge.Charge function circuit is connected to super capacitor by control switch; When monitoring multimode reserce cell management system, be operated in charge mode lower time, by the control of charge function circuit, super capacitor carried out continuously or intermittent charge.
The running of the system of multimode battery system and DC bus docking in the utility model, as the coordination of each switch, time order and function, length etc., algorithm that can be based on different, is arranged according to requirement of engineering.
As can be seen here, the utility model proposes the docking system between multimode battery or battery pack and DC bus, it is for realizing electric discharge, charging and some other function.The path of these functions can independently separate, and also can combine.The docking that the utility model proposes and the system of configuration are only examples, and the utility model can comprise other unshowned similar structures and similar system.
Claims (7)
1. docking and the system of configuration of multimode reserce cell management system and DC bus, comprising:
DC bus, is connected in series with externally fed equipment and electrical appliance, and DC bus obtains electric energy from externally fed equipment, and offers electrical appliance;
It is characterized in that:
Multimode reserce cell management system, docks configuration with DC bus, according to the d-c bus voltage value of Real-Time Monitoring, DC bus is carried out to real-time charge and discharge control, and detection alarm function.
2. the system as claimed in claim 1, is characterized in that multimode reserce cell management system comprises multimode battery or battery pack.
3. system as claimed in claim 2, it is characterized in that being connected discharge paths between multimode battery or battery pack and DC bus, discharge paths comprises one or more control switchs, when monitoring DC bus-bar voltage and be reduced to threshold value, multimode reserce cell management system is operated in powering mode, control circuit sends switch controlling signal, connect discharge paths, multimode battery or battery pack are discharged to DC bus, until DC bus returns to after normal voltage scope, control circuit sends switch controlling signal, disconnects discharge paths.
4. system as claimed in claim 2, it is characterized in that being connected charging paths between multimode battery or battery pack and DC bus, discharge paths comprises one or more control switchs, when monitoring DC bus, return to after normal voltage power supply, multimode reserce cell management system is operated in charge mode, control circuit sends switch controlling signal, connect charging paths, DC bus is to multimode battery or batteries charging, to guarantee that multimode battery or battery pack can maintain the ability that can again discharge to DC bus at any time.
5. system as claimed in claim 4, is characterized in that being also connected in series in charging paths charge function circuit; When monitoring multimode reserce cell management system, be operated in charge mode lower time, between multimode battery or battery pack and DC bus, by control switch, be connected charge function circuit, by the control of charge function circuit, multimode battery or battery pack carried out continuously or intermittent charge.
6. the system as described in claim 3 or 4 or 5, is characterized in that:
Super capacitor group branch road, in parallel with discharge paths and charging paths, be connected between multimode battery or battery pack and DC bus;
Super capacitor group branch road assists multimode battery or battery pack seamlessly transitting DC bus electric discharge or charging process; When DC bus-bar voltage is reduced to threshold value, control circuit sends switch controlling signal, by the access of super capacitor group, assists multimode battery or battery pack to discharge to DC bus; When DC bus returns to after normal voltage power supply, DC bus is to the charging of super capacitor group, in order to assisting at any time the discharging action of multimode battery or battery pack.
7. system as claimed in claim 6, is characterized in that charge function circuit is connected to super capacitor by control switch; When monitoring multimode reserce cell management system, be operated in charge mode lower time, by the control of charge function circuit, super capacitor carried out continuously or intermittent charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320542495.1U CN203562822U (en) | 2013-09-02 | 2013-09-02 | A system for the butt joint and the configuration between a multi-module backup battery management system and a DC bus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320542495.1U CN203562822U (en) | 2013-09-02 | 2013-09-02 | A system for the butt joint and the configuration between a multi-module backup battery management system and a DC bus |
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| CN203562822U true CN203562822U (en) | 2014-04-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457339A (en) * | 2013-09-02 | 2013-12-18 | 慈松 | Method and system for butt joint and configuration between multi-module backup battery management system and direct-current bus |
| CN107124026A (en) * | 2017-07-13 | 2017-09-01 | 东莞恒量新能源科技有限公司 | Storing up electricity managing and control system and its charge/discharge control method with telecommunication |
| CN107351706A (en) * | 2017-07-13 | 2017-11-17 | 东莞恒量新能源科技有限公司 | The control panel and its charge/discharge control method of a kind of electric car |
-
2013
- 2013-09-02 CN CN201320542495.1U patent/CN203562822U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457339A (en) * | 2013-09-02 | 2013-12-18 | 慈松 | Method and system for butt joint and configuration between multi-module backup battery management system and direct-current bus |
| CN103457339B (en) * | 2013-09-02 | 2016-08-10 | 慈松 | A kind of multimode reserce cell management system is docked and the method and system of configuration with dc bus |
| CN107124026A (en) * | 2017-07-13 | 2017-09-01 | 东莞恒量新能源科技有限公司 | Storing up electricity managing and control system and its charge/discharge control method with telecommunication |
| CN107351706A (en) * | 2017-07-13 | 2017-11-17 | 东莞恒量新能源科技有限公司 | The control panel and its charge/discharge control method of a kind of electric car |
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Owner name: YU FANGFEN Free format text: FORMER OWNER: CI SONG Effective date: 20150126 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 100190 HAIDIAN, BEIJING TO: 264001 YANTAI, SHANDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150126 Address after: 264001 No. 71, Fu Shan Road, Zhifu District, Shandong, Yantai, 7 Patentee after: Yu Fangfen Address before: 100190 Beijing City, North Fourth Ring Road West, No. 21, No. Patentee before: Cisong |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20151224 Address after: Xinluo Avenue high tech Zone of Ji'nan City, Shandong province 250101 No. 1768 Qilu Software Park building B, A404 Patentee after: Shandong Yunchu New Energy Technology Co.,Ltd. Address before: 264001 No. 71, Fu Shan Road, Zhifu District, Shandong, Yantai, 7 Patentee before: Yu Fangfen |
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| CP03 | Change of name, title or address |
Address after: Floor 1, Building 4, No. 27, Xingyu Road, Zhifu District, Yantai City, Shandong Province, 264004 Patentee after: Cloud Storage New Energy Technology Co.,Ltd. Address before: 250101 A404, block B, Qilu Software Park building, 1768 Xinluo street, high tech Zone, Jinan City, Shandong Province Patentee before: Shandong Yunchu New Energy Technology Co.,Ltd. |