CN204068413U - One base station portable energy-storing equipment and electric power system - Google Patents
One base station portable energy-storing equipment and electric power system Download PDFInfo
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- CN204068413U CN204068413U CN201420425870.9U CN201420425870U CN204068413U CN 204068413 U CN204068413 U CN 204068413U CN 201420425870 U CN201420425870 U CN 201420425870U CN 204068413 U CN204068413 U CN 204068413U
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Abstract
The utility model provides a kind of base station portable energy-storing equipment and electric power system, relates to communication power supply field.This equipment comprises: dismountable energy storage device; The control and management device be connected with described energy storage device; The the first direct current fast interface be connected with described control and management device and the second direct current fast interface be connected with described energy storage device; The energy storage switch that wherein said energy storage device comprises at least one battery pack, connect one to one with at least one battery pack described and the battery management system connected one to one with at least one battery pack described.In this programme, equipment is easy to carry, can easily and timely for load of base station provides continued power, and efficiency is high, reduces cost of electricity-generating and without exhaust emission and noise pollution.
Description
Technical field
The utility model relates to communication power supply field, refers to a kind of base station portable energy-storing equipment and electric power system especially.
Background technology
Communication base station is made up of a few part of communication equipment, base station power, batteries and air conditioner in machine room.Base station equipment adopts direct current-48V working power, is provided by base station power and batteries.Base station power and air conditioner in machine room adopt 380V ac working power supply, provide Alternating Current Power Supply time normal by civil power.During mains failure, provide Alternating Current Power Supply by oil machine.Specific works performance is as follows:
When mains ac power supply is normal, by base station power and batteries floating charge power supply in parallel; When having no progeny in mains electricity, powered directly to load by storage battery, send generating work order to attendant simultaneously, after attendant transports hydro power generation equipment to base station, hydro power generation is used to provide Alternating Current Power Supply for base station power, now base station power is resumed work to communication load and is powered, and charges to batteries.
But, hydro power generation equipment due to own wt comparatively large, power 5KVA weight of equipment is about about 150KG, carries and transport difficult; Hydro power generation equipment use diesel oil, as main energy sources, because own efficiency is lower, adds cost of electricity-generating, also there is exhaust emission; During hydro power generation, noise is comparatively large, after adopting noise reduction measure, still can there is the noise about 75-80 decibel.
Utility model content
The purpose of this utility model is to provide a kind of energy storage device and electric power system, and after commercial power interruption, easily and timely for load of base station provides continued power, efficiency is high reduces cost of electricity-generating and without exhaust emission and noise pollution.
For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of base station portable energy-storing equipment, comprising:
Dismountable energy storage device;
The control and management device be connected with described energy storage device;
The the first direct current fast interface be connected with described control and management device and the second direct current fast interface be connected with described energy storage device; Wherein
The energy storage switch that described energy storage device comprises at least one battery pack, connect one to one with at least one battery pack described and the battery management system connected one to one with at least one battery pack described.
Wherein, described control and management device comprises:
The Parallel opertation current stabilization circuit be connected with described energy storage device;
The charge protector be connected with described Parallel opertation current stabilization circuit; Wherein
Described Parallel opertation current stabilization circuit comprises at least one current equalization circuit, at least one current equalization circuit described comprises a current balance resistance and a current balance switch, described current balance resistance and described current balance switch in parallel, the first end of described current equalization circuit connects corresponding energy storage switch;
Described charge protector comprises at least one charge protection parallel circuit; at least one charge protection parallel circuit described comprises an isolating diode and a charging protection switch; described isolating diode is in parallel with described charging protection switch; the first end of described charge protection parallel circuit connects the second end of corresponding described current equalization circuit; second end of described charge protection parallel circuit connects master switch; wherein, the negative pole of described isolating diode connects with corresponding described charging protection switch.
Wherein, described control and management device also comprises:
The control and management unit be all connected with described Parallel opertation current stabilization circuit, described charge protector; Described control and management unit comprises:
The first group of contactor connected one to one with described current balance switch;
The second group of contactor connected one to one with described charging protection switch;
The single-chip microcomputer be connected with described first group of contactor, described second group of contactor.
Wherein, described control and management unit also comprises:
The 3rd group of contactor connected one to one with described energy storage switch; Wherein
Described 3rd group of contactor is also connected with described single-chip microcomputer.
Wherein, described control and management unit also comprises:
The 4th group of contactor be connected with described single-chip microcomputer.
Wherein, described single-chip microcomputer is also connected with described battery management system.
Wherein, described first direct current fast interface and described second direct current fast interface are direct current aviation plug device.
Wherein, described battery pack is iron lithium storage battery group.
For achieving the above object, the utility model additionally provides a kind of electric power system, is applied to communication base station, comprises base station power system;
Also comprise base station as above portable energy-storing equipment, described base station portable energy-storing equipment is connected with described base station power system.
Wherein, described base station power system comprises base station power cell charge protection controller; Wherein
Described base station power cell charge protection controller comprises the first diode, the second diode, the first switch and second switch; Described first diode and described first switch in parallel, described second diode is in parallel with described second switch, and the negative pole of described first diode connects with corresponding base station battery negative pole, and described second diode cathode connects with corresponding base station battery negative pole;
Described first switch and second switch, after base station power system described in the portable energy-storing equipment access of described base station, are connected with the 4th group of contactor of described base station with portable energy-storing equipment.
The beneficial effect of technique scheme of the present utility model is as follows:
In such scheme, owing to be carried out store electrical energy by least one battery pack, small volume, easy to carry can in time for load of base station provides continued power after commercial power interruption, simultaneously due to the operating characteristic of battery, improve the power supplying efficiency of system, reduce cost of electricity-generating, also do not have disposal of pollutants and noise pollution.And wherein dismountable energy storage device, after having discharged when last group of energy storage device, detachably replace new energy storage device, energy storage device can have been realized and change online, improve equipment flying power, sustainable power supply.
Accompanying drawing explanation
Fig. 1 represents the electrical block diagram of the base station portable energy-storing equipment of the utility model embodiment;
Fig. 2 represents the structural representation of the control and management unit of the utility model embodiment;
Fig. 3 represents that the base station portable energy-storing equipment of the utility model embodiment is applied to the structural representation of base station;
Fig. 4 represents the base station power cell charge protection controller circuit structure schematic diagram of the base station power system of the utility model embodiment;
Fig. 5 represents the schematic diagram of the electric power system of the utility model embodiment.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model for existing hydro power generation equipment because own wt carries more greatly and transport difficult, cost of electricity-generating, also there is exhaust emission, the problem of noise pollution, a kind of base station portable energy-storing equipment is provided, is easy to carry, can easily and timely for load of base station provides continued power, efficiency is high, reduces cost of electricity-generating and without exhaust emission and noise pollution.
As shown in Figure 1, a kind of base station portable energy-storing equipment of embodiment of the present utility model, comprising: dismountable energy storage device 1; The control and management device 2 be connected with described energy storage device 1; The the first direct current fast interface 32 be connected with described control and management device 2 and the second direct current fast interface 31 be connected with described energy storage device 1; The energy storage switch that wherein said energy storage device 1 comprises at least one battery pack, connect one to one with at least one battery pack described and the battery management system connected one to one with at least one battery pack described.
Because the base station portable energy-storing equipment of the utility model embodiment carrys out store electrical energy by least one battery pack, small volume, easy to carry can in time for load of base station provides continued power after commercial power interruption, simultaneously due to the operating characteristic of battery, improve the power supplying efficiency of system, reduce cost of electricity-generating, also do not have disposal of pollutants and noise pollution.And wherein dismountable energy storage device, after having discharged when last group of energy storage device, detachably replace new energy storage device, energy storage device can have been realized and change online, improve equipment flying power, sustainable power supply.
In the utility model embodiment, described battery pack is iron lithium storage battery group.During well-known hydro power generation, building environment temperature is owing to limiting by lead acid accumulator working temperature, 28 DEG C need be remained on, this just requires to enable base station air conditioner equipment refrigeration, add power supply cost, and this energy storage device adopts the operating ambient temperature of iron lithium storage battery group at-15 DEG C ~+50 DEG C, the temperature without the need to air-conditioning equipment regulates, high temperature resistant, save cost.
Wherein, described energy storage device comprises at least one energy-storage units, and each described energy-storage units comprises a battery pack, the energy storage switch that connect corresponding to described battery pack and the battery management system that be connected corresponding to described battery pack
Generally speaking, after energy storage device electric discharge, be in low-voltage state, and when accessing next energy storage device, because the energy storage device newly accessed is now full capacity, just easily there is heavy current impact in the voltage difference that both existence are larger, causes damage to load.
In order to avoid the generation of above-mentioned situation, as shown in Figure 1, in the utility model embodiment, described control and management device 2 comprises: the Parallel opertation current stabilization circuit 21 be connected with described energy storage device 1; The charge protector 22 be connected with described Parallel opertation current stabilization circuit 21; Wherein said Parallel opertation current stabilization circuit 21 comprises at least one current equalization circuit, at least one current equalization circuit described comprises a current balance resistance and a current balance switch, described current balance resistance and described current balance switch in parallel, the first end of described current equalization circuit connects corresponding energy storage switch; Described charge protector 22 comprises at least one charge protection parallel circuit; at least one charge protection parallel circuit described comprises an isolating diode and a charging protection switch; described isolating diode is in parallel with described charging protection switch; the first end of described charge protection parallel circuit connects the second end of corresponding described current equalization circuit; second end of described charge protection parallel circuit connects master switch; wherein, the negative pole of described isolating diode connects with corresponding described charging protection switch.
So; after access base station electric power system; current balance K switch r1 as shown in Figure 1, Kr2 ... Krn disconnects; corresponding current balance resistance R1, R2 ... in Rn place in circuit; just realize current balance between energy-storage units by series resistance; thus heavy current impact when effectively avoiding energy-storage units in parallel, protection backend load.Wherein, the resistance value of current balance resistance is determined according to the voltage difference between energy-storage units in parallel, and series resistance dividing potential drop is preferably the half of maximum differential pressure.
Wherein, charge protector realizes the charge protection to energy storage device.As charging protection switch Kdx, (x gets 1 ... when n) being in disconnection, corresponding energy-storage units Bx is in charge protection state, when energy-storage units Bx regular picture, and isolating diode Dx conducting, energy-storage units Bx regular picture; When the anti-phase charging of energy-storage units Bx, isolating diode Dx bears back-pressure and turns off, and energy-storage units Bx is in charging blocked state.When charging protection switch Kdx is in closed; energy-storage units Bx is in normal operating conditions; because isolating diode Dx is shorted, solve energy-storage units Bx discharge for a long time cause diode heating and power dissipation concerns, energy-storage units is in normal charging and discharging state.Wherein, the conducting voltage of isolating diode, preferably more than 0.7V, is preferably 0.4V.
It should be appreciated that; in order to ensure the transformation in different operating state of Parallel opertation current stabilization circuit, charge protector; as shown in Figure 1; in the utility model embodiment, described control and management device 2 also comprises: the control and management unit be all connected with described Parallel opertation current stabilization circuit 21, described charge protector 22.
Wherein, as shown in Figure 2, described control and management unit comprises: the first group of contactor connected one to one with described current balance switch; The second group of contactor connected one to one with described charging protection switch; The single-chip microcomputer be connected with described first group of contactor, described second group of contactor.
Wherein, described control and management unit also comprises:
The 3rd group of contactor connected one to one with described energy storage switch; Wherein
Described 3rd group of contactor is also connected with described single-chip microcomputer.
Wherein, described control and management unit also comprises:
The 4th group of contactor be connected with described single-chip microcomputer.
The 4th group of contactor that single-chip microcomputer connects, after access base station power-supply system, correspondingly can control the first switch of base station power system and the closed of second switch.
Control and management unit is by Single-chip Controlling first group of contactor, second group of contactor, the 3rd group of contactor, the 4th group of contactor, thus control the operating state of corresponding part, certainly, single-chip microcomputer is also connected with master switch contactor, controls the closed and disconnected of master switch.
Wherein, described single-chip microcomputer is also connected with described battery management system.
Be connected with battery management system, the information of the corresponding battery pack that battery management system obtains can be collected, as the input signal of single-chip microcomputer.Certainly, single-chip microcomputer is also connected with the battery tension etc. that signal acquisition circuit can collect base station portable energy-storing equipment voltage, city's signal of telecommunication, base station power system.
After civil power power-off, as shown in Fig. 3, Fig. 5, staff, by the base station of the utility model embodiment portable energy-storing equipment 10 access base station power-supply system 30, the following describes the operation principle of the base station portable energy-storing equipment 10 of the utility model embodiment:
Before the portable energy-storing equipment access of base station: equipment is in non-access state and master switch K
alwaysdisconnect, energy storage device control switch Kb1, Kb2 ... Kbn is in closure state, charging protection switch Kd1, Kd2 ... Kdn and current balance K switch r1, Kr2 ... Krn is in off-state.
Base station portable energy-storing equipment access: base station portable energy-storing equipment access base station power system, single-chip microcomputer is less than a preset voltage value U0 at the battery tension getting city's signal of telecommunication dead electricity and base station power system, and base station portable energy-storing equipment voltage is when being greater than a preset voltage value U1, by corresponding master switch contactor control K
alwaysclosed, base station portable energy-storing equipment enters access control controlled state, after postponing a preset time value T1, controls current balance switch successively and closes, enter energy storage device regular picture state, for traffic load is powered by first group of contactor correspondence.Wherein, preset voltage value U0 is the reserved part capacity that staff determines according to maintenance needs, preferred U0=45.1V; Preset voltage value U1 is preferably 48V, according to the battery energy storage capacity setting of energy storage device.
Base station portable energy-storing equipment parallel discharge control and management: the battery management system of energy storage device can detect its internal state, and communicate information in the single-chip microcomputer of control and management unit, comprising the voltage U bx of energy-storage units Bx, voltage U bx compares with base station portable energy-storing equipment voltage U 2 by single-chip microcomputer, obtain difference DELTA U, when Δ U is less than a preset voltage value U3, control second group of contactor correspondence control charging protection switch Kdx to close, corresponding isolating diode Dx is shorted, thus energy-storage units Bx enter parallel discharge state; When Δ U is greater than a preset voltage value U3, control second group of contactor correspondence and control charging protection switch Kdx disconnection, energy-storage units Bx is in low-voltage state, and corresponding isolating diode Dx back-pressure turns off, and is discharged by high voltage energy-storage units.Control and management unit carries out cycle detection to energy-storage units successively by single-chip microcomputer, as charging protection switch Kd1, Kd2 ... when Kdn all closes, energy-storage units is all in parallel discharge state, stops parallel discharge controlling to detect.
Base station portable energy-storing equipment energy storage device changes control and management: voltage U bx compares with predeterminated voltage U4 by single-chip microcomputer, when voltage U bx is less than predeterminated voltage U4, charging protection switch Kd1 is controlled by controlling second group of contactor correspondence, Kd2 ... Kdn disconnects successively, send information warning (alarming device that single-chip microcomputer connects) simultaneously, preferably preferential replacing energy-storage units B1, current balance K switch r1 disconnection is controlled by controlling first group of contactor correspondence, after time delay preset time T 2, energy storage device control switch Kb1 disconnection is controlled by controlling the 3rd group of contactor correspondence.Receive information warning staff and change energy storage device, changed rear voltage U bx and be greater than predeterminated voltage U4, control the 3rd group of contactor correspondence control energy storage device control switch Kbx and close, complete the replacing of all the other battery pack successively.
Base station portable energy-storing equipment exits management: after single-chip microcomputer obtains city power recovery signal, after a preset time T 3, by corresponding master switch contactor control K
alwaysdisconnect, the first K switch 1 and the second switch K2 of the 4th group of contactor controller control base station power cell charge protection controller 20 close successively, and base station power system is that base station battery group carries out uniform charging.Wherein, the setting of time value T3, can avoid city's electro-mechanical wave and short time secondary power-off.Preferred T3 is 5 minutes.
In the utility model embodiment, as shown in Figure 1, described first direct current fast interface 32 and described second direct current fast interface 31 are direct current aviation plug device.
Direct current aviation plug device can realize the quick access of energy storage device and base station power system, reduces the attended operation time.
To sum up, the base station portable energy-storing equipment of the utility model embodiment has following advantage:
1. this base station portable energy-storing equipment use battery energy storage, reduces size and the weight of integral device, is convenient to carrying and carrying of attendant;
2. this base station operating characteristic of portable energy-storing equipment due to battery, high temperature resistant, without the auxiliary temperature-reducing of air-conditioning equipment, cost-saving;
3. this base station is with portable energy-storing device battery electric discharge noiselessness without exhaust emission, is applicable to town dweller district, environmental protection;
4. this base station portable energy-storing equipment power supply distance is short, and loss is little, cost-saving;
5. this base station portable energy-storing equipment can realize energy storage device and changes online, improves equipment flying power, sustainable power supply.
As shown in Figure 5, the utility model embodiment still provides a kind of electric power system, is applied to communication base station, comprises base station power system 30; Also comprise base station as above portable energy-storing equipment 10, described base station portable energy-storing equipment 10 is connected with described base station power system 30.
Wherein, as shown in Figure 4, described base station power system comprises base station power cell charge protection controller 20; Wherein said base station power cell charge protection controller 20 comprises the first diode Djz1, the second diode Djz2, the first K switch 1 and second switch K2; Described first diode Djz1 is in parallel with described first K switch 1, described second diode Djz2 is in parallel with described second switch K2, the negative pole of described first diode Djz1 connects with corresponding base station battery 201 negative pole, and described second diode Djz2 negative pole connects with corresponding base station battery 202 negative pole; Described first K switch 1 and second switch K2, after described base station portable energy-storing equipment 10 accesses described base station power system, are connected with the 4th group of contactor of described base station with portable energy-storing equipment.
Wherein, the positive pole of the first diode Djz1 connects a shunt FL1, and the positive pole of the second diode Djz2 connects a shunt FL2.
When civil power is normal, base station battery batteries is in normal float duty, and the first K switch 1 and second switch K2 close, and the first diode Djz1 and the second diode Djz2 is in short-circuit condition; When municipal power failure is interrupted; the base station control and management unit single-chip microcomputer of portable energy-storing equipment is disconnected by control the 4th group of contactor correspondence control the first K switch 1 and second switch K2; batteries enters charge protection state, can carry out regular picture, can not charge.When storage battery regular picture, diode current flow; When adopting base station to discharge with portable energy-storing equipment, the anti-phase charging of storage battery, diode bears back-pressure and turns off, and batteries is in charging blocked state.Behind city power recovery, single-chip microcomputer controls the first K switch 1 by control the 4th group of contactor correspondence and second switch K2 closes, and batteries enters charged state.
It should be noted that, this electric power system is the system including above-mentioned base station portable energy-storing equipment, and the implementation of this base station portable energy-storing equipment is applicable to this system, also can cross and reach identical technique effect.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. a base station portable energy-storing equipment, is characterized in that, comprising:
Dismountable energy storage device;
The control and management device be connected with described energy storage device;
The the first direct current fast interface be connected with described control and management device and the second direct current fast interface be connected with described energy storage device; Wherein
The energy storage switch that described energy storage device comprises at least one battery pack, connect one to one with at least one battery pack described and the battery management system connected one to one with at least one battery pack described.
2. base station according to claim 1 portable energy-storing equipment, is characterized in that, described control and management device comprises:
The Parallel opertation current stabilization circuit be connected with described energy storage device;
The charge protector be connected with described Parallel opertation current stabilization circuit; Wherein
Described Parallel opertation current stabilization circuit comprises at least one current equalization circuit, at least one current equalization circuit described comprises a current balance resistance and a current balance switch, described current balance resistance and described current balance switch in parallel, the first end of described current equalization circuit connects corresponding energy storage switch;
Described charge protector comprises at least one charge protection parallel circuit; at least one charge protection parallel circuit described comprises an isolating diode and a charging protection switch; described isolating diode is in parallel with described charging protection switch; the first end of described charge protection parallel circuit connects the second end of corresponding described current equalization circuit; second end of described charge protection parallel circuit connects master switch; wherein, the negative pole of described isolating diode connects with corresponding described charging protection switch.
3. base station according to claim 2 portable energy-storing equipment, is characterized in that, described control and management device also comprises:
The control and management unit be all connected with described Parallel opertation current stabilization circuit, described charge protector; Described control and management unit comprises:
The first group of contactor connected one to one with described current balance switch;
The second group of contactor connected one to one with described charging protection switch;
The single-chip microcomputer be connected with described first group of contactor, described second group of contactor.
4. base station according to claim 3 portable energy-storing equipment, is characterized in that, described control and management unit also comprises:
The 3rd group of contactor connected one to one with described energy storage switch; Wherein
Described 3rd group of contactor is also connected with described single-chip microcomputer.
5. base station according to claim 4 portable energy-storing equipment, is characterized in that, described control and management unit also comprises:
The 4th group of contactor be connected with described single-chip microcomputer.
6. base station according to claim 3 portable energy-storing equipment, it is characterized in that, described single-chip microcomputer is also connected with described battery management system.
7. base station according to claim 1 portable energy-storing equipment, is characterized in that, described first direct current fast interface and described second direct current fast interface are direct current aviation plug device.
8. base station according to claim 1 portable energy-storing equipment, is characterized in that, described battery pack is iron lithium storage battery group.
9. an electric power system, is applied to communication base station, it is characterized in that, comprises base station power system; Also comprise the base station portable energy-storing equipment as described in any one of claim 1 to 8, described base station portable energy-storing equipment is connected with described base station power system.
10. electric power system according to claim 9, is characterized in that, described base station power system comprises base station power cell charge protection controller; Wherein
Described base station power cell charge protection controller comprises the first diode, the second diode, the first switch and second switch; Described first diode and described first switch in parallel, described second diode is in parallel with described second switch, and the negative pole of described first diode connects with corresponding base station battery negative pole, and described second diode cathode connects with corresponding base station battery negative pole;
Described first switch and second switch, after base station power system described in the portable energy-storing equipment access of described base station, are connected with the 4th group of contactor of described base station with portable energy-storing equipment.
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| CN201420425870.9U CN204068413U (en) | 2014-07-30 | 2014-07-30 | One base station portable energy-storing equipment and electric power system |
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| CN201420425870.9U CN204068413U (en) | 2014-07-30 | 2014-07-30 | One base station portable energy-storing equipment and electric power system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787045A (en) * | 2016-12-30 | 2017-05-31 | 中达电通股份有限公司 | DC power system and its control method |
| CN109167111A (en) * | 2018-07-12 | 2019-01-08 | 国网山西省电力公司电力科学研究院 | The LiFePO4 standby battery group charging method for inhibiting circulation to generate |
| CN114583779A (en) * | 2022-01-12 | 2022-06-03 | 浙江大学 | Battery energy storage system circulation blocking circuit and control method |
-
2014
- 2014-07-30 CN CN201420425870.9U patent/CN204068413U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787045A (en) * | 2016-12-30 | 2017-05-31 | 中达电通股份有限公司 | DC power system and its control method |
| CN106787045B (en) * | 2016-12-30 | 2020-05-01 | 中达电通股份有限公司 | Direct current power supply system and control method thereof |
| CN109167111A (en) * | 2018-07-12 | 2019-01-08 | 国网山西省电力公司电力科学研究院 | The LiFePO4 standby battery group charging method for inhibiting circulation to generate |
| CN114583779A (en) * | 2022-01-12 | 2022-06-03 | 浙江大学 | Battery energy storage system circulation blocking circuit and control method |
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