CN208923898U - An energy storage backup system for a power exchange cabinet - Google Patents
An energy storage backup system for a power exchange cabinet Download PDFInfo
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- CN208923898U CN208923898U CN201821814951.2U CN201821814951U CN208923898U CN 208923898 U CN208923898 U CN 208923898U CN 201821814951 U CN201821814951 U CN 201821814951U CN 208923898 U CN208923898 U CN 208923898U
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- battery
- electric cabinet
- energy storage
- rectifier
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Abstract
本实用新型涉及一种换电柜储能备电系统，用于给电动自行车电池充电，其特征在于，所述换电柜储能备电系统包括BMS、蓄电池、母线、整流器和多个换电柜，所述整流器输入端接交流电，所述整流器输出端、所述蓄电池和所述换电柜均并联接所述母线，所述BMS用于对整个储能备电系统的状态及充放电进行管理，以实现在用电低谷时由所述整流器的输出给所述蓄电池充电并通过所述换电柜给所述电动自行车电池充电，而在用电高峰时，所述蓄电池放电并通过所述换电柜给电动自行车电池充电。本实用新型能够减少蓄电池放电时的功率变换环节，达到减少功率变换损耗、节约成本的目的，并且不需要采用昂贵的PCS，降低了成本。
The utility model relates to an energy storage and backup system of a power exchange cabinet, which is used for charging electric bicycle batteries. The input end of the rectifier is connected to the alternating current, the output end of the rectifier, the battery and the power exchange cabinet are all connected to the busbar in parallel, and the BMS is used to perform the state and charging and discharging of the entire energy storage and backup system. management, so as to charge the battery by the output of the rectifier and charge the electric bicycle battery through the power exchange cabinet when the power consumption is low, and when the power consumption peaks, the battery is discharged and passed through the The power exchange cabinet charges the electric bike battery. The utility model can reduce the power conversion link when the storage battery is discharged, achieve the purpose of reducing the power conversion loss and saving the cost, and does not need to use an expensive PCS, thereby reducing the cost.
Description
Technical field
The utility model relates to one kind to change electric cabinet energy storage backup power supply system.
Background technique
Changing electric cabinet is a kind of equipment to charge to battery of electric bicycle, converts alternating current to direct current and supplies electricity to battery
Charging.Commercial power time-of-use tariffs difference is larger at present, and changing electric cabinet and increasing energy storage backup power supply system can be realized peak load shifting, can be with
Greatly reduce electric cost expenditure, is the investment that can obtain long-term gain after one kind is put into short term, the favor by many clients.At night
Electricity price is relatively inexpensive, carries out standby electricity to energy-storage system charging, peak times of power consumption on daytime electricity price is more expensive, by energy storage system discharges to electricity
Dynamic bicycle battery charging.It is earned in this way by peak load shifting and takes electricity charge price difference, many electricity charge spendings can be saved.
It is conventional change electric cabinet energy-storage system scheme as shown in Figure 1, this sentences 100kWh energy-storage system for.The system is main
There are two types of operating modes:
Mode one:, electricity price is cheap, and alternating current is charged a battery by current transformer PCS, alternating current the low power consumption phase in the evening
It is charged by changing electric cabinet to battery of electric bicycle；
Mode two: peak times of power consumption on daytime, electricity price is more expensive, electric power storage tank discharge, switchs to alternating current by PCS, alternating current is again
By change electric cabinet be transformed to direct current supply electricity to battery of electric bicycle charging.
At peak times of power consumption on daytime, the electric energy of battery needs to be converted to alternating current, alternating current by PCS Fig. 1 scheme
Using change electric cabinet carry out power conversion can just charge to battery of electric bicycle, have passed through two steps convert, transfer efficiency compared with
It is low, it is lost larger.In addition, PCS cost is also higher.
Summary of the invention
The utility model is intended to provide one kind and changes electric cabinet energy storage backup power supply system, to solve the above problems.For this purpose, this is practical new
The specific technical solution that type uses is as follows:
One kind changing electric cabinet energy storage backup power supply system, for charging to battery of electric bicycle, which is characterized in that described to change electric cabinet
Energy storage backup power supply system include BMS, battery, bus, rectifier and it is multiple change electric cabinet, the rectifier input connects alternating current,
The rectifier output end, the battery and it is described change electric cabinet and couple the bus, the BMS be used for entire energy storage
The state of backup power supply system and charge and discharge are managed, to realize the exporting to the electric power storage by the rectifier in low power consumption
Pond charges and passes through the electric cabinet of changing and charges to the battery of electric bicycle, and in peak of power consumption, the electric power storage tank discharge
And battery of electric bicycle charging is given by the electric cabinet of changing.
Further, the alternating current is single-phase, two-phase or three-phase alternating current.
Further, the voltage of the bus is 220VDC.
Further, the capacity of the battery is 100kWh.
The utility model by adopting the above technical scheme, has the beneficial effect that the utility model can reduce battery
Power conversion link when electric discharge achievees the purpose that reduce power conversion loss, save the cost, and does not need using valuableness
PCS is reduced costs.
Detailed description of the invention
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Fig. 1 is the circuit diagram for changing electric cabinet energy storage backup power supply system of the prior art；
Fig. 2 is the circuit diagram for changing electric cabinet energy storage backup power supply system of the utility model.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
Referring to Fig. 2, describe the utility model changes electric cabinet energy storage backup power supply system.The electric cabinet energy storage backup power supply system that changes can wrap
It includes battery management system (BMS) 1, battery 2, bus (BUS BAR) 4, rectifier 3 and multiple changes electric cabinet 5.Rectifier 3 inputs
It terminates alternating current, the output end of rectifier 3, battery 2 and changes electric cabinet 5 and couple bus 2.The BMS 1 is with to entire storage
The state of energy backup power supply system and charge and discharge are managed, to realize peak load shifting, power cost saving expenditure.
In the present invention, the voltage of battery 2 is defined as busbar voltage, accesses BUS BAR 4, busbar voltage etc.
In changing electric cabinet nominal input voltage virtual value；Alternating current is transformed to busbar voltage by rectifier 3 and accesses BUS BAR 4；Change electricity
Cabinet 5 directly takes electricity from BUS BAR 4.
The schematic diagram of Fig. 2 only with 100kWh battery 2, three-phase alternating current, change the nominal input voltage of electric cabinet 5 as 220V, 3
A electric cabinet 5 of changing is example.In practical application, the volume-variable (can configure according to actual needs) of battery 2, three-phase alternating current can
It is changed to single-phase or two-phase alternating current, the nominal input voltage for changing electric cabinet 5 is variable, changes the variable amounts of electric cabinet 5.
Busbar voltage 220VDC in Fig. 2 is only nominal value, is not necessarily referring to fixed voltage value 220V.It can basis in actual use
The needs of battery management and float up and down.
Fig. 2 is only schematic illustration, protection device needed for not embodying each node.It can be in each control in practical application
Node processed increases protective switch etc., such as in input, outlet side increase breaker or the fuse for changing electric cabinet 5.
Battery can be commercially available nickel-metal hydride battery, nickel-cadmium cell, lithium battery or lead-acid battery etc. in the market.Battery
It can be made of multiple battery units.
There are mainly two types of operating modes for the utility model:
Mode one:, electricity price is cheap the low power consumption phase in the evening, and alternating current is transformed to 220VDC by rectifier 3, and 220VDC gives
Battery 2 charges, and 220VDC is charged by changing electric cabinet 5 to battery of electric bicycle；
Mode two: peak times of power consumption on daytime, electricity price is more expensive, and battery 2 discharges, and gives electric bicycle electricity by changing electric cabinet 5
Pond charging.
One is increased although night have passed through 2 step power conversions to battery of electric bicycle charging for the utility model
Fixed power loss, but night electricity price is relatively inexpensive and the battery of electric bicycle negligible amounts of night charging, institute are increased
The electricity charge are seldom；And when peak times of power consumption on daytime, battery electric energy can only charge by changing electric cabinet to battery of electric bicycle,
Only need a step transformation, transfer efficiency is higher, can be reduced more loss, so as to reduce accumulator capacity configuration or it is identical
The battery of capacity can improve the cost performance of investment in case of the electric longer time.In addition, the rectifier of the utility model do not need it is double
It is more excellent compared to PCS cost to mapping function.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (4)
1. one kind changes electric cabinet energy storage backup power supply system, for charging to battery of electric bicycle, which is characterized in that described to change electric cabinet storage
Can backup power supply system include BMS, battery, bus, rectifier and it is multiple change electric cabinet, the rectifier input connects alternating current, institute
State rectifier output end, the battery and it is described change electric cabinet and couple the bus, the BMS is used for for the BMS
The state and charge and discharge of entire energy storage backup power supply system are managed, to realize in low power consumption by the output of the rectifier
It charges to the battery and passes through the electric cabinet of changing and charge to the battery of electric bicycle, and in peak of power consumption, it is described
Battery is allowed to discharge through the electric cabinet of changing and charges to battery of electric bicycle.
2. changing electric cabinet energy storage backup power supply system as described in claim 1, which is characterized in that the alternating current be single-phase, two-phase or
Three-phase alternating current.
3. changing electric cabinet energy storage backup power supply system as claimed in claim 1 or 2, which is characterized in that the voltage of the bus is
220VDC。
4. changing electric cabinet energy storage backup power supply system as claimed in claim 1 or 2, which is characterized in that the capacity of the battery is
100kWh。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821814951.2U CN208923898U (en) | 2018-11-06 | 2018-11-06 | An energy storage backup system for a power exchange cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821814951.2U CN208923898U (en) | 2018-11-06 | 2018-11-06 | An energy storage backup system for a power exchange cabinet |
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| Publication Number | Publication Date |
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| CN208923898U true CN208923898U (en) | 2019-05-31 |
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| CN201821814951.2U Active CN208923898U (en) | 2018-11-06 | 2018-11-06 | An energy storage backup system for a power exchange cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115004502A (en) * | 2020-02-07 | 2022-09-02 | 本田技研工业株式会社 | Power supply device |
-
2018
- 2018-11-06 CN CN201821814951.2U patent/CN208923898U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115004502A (en) * | 2020-02-07 | 2022-09-02 | 本田技研工业株式会社 | Power supply device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A kind of energy storage and backup system for power exchange cabinet Effective date of registration: 20210326 Granted publication date: 20190531 Pledgee: Bank of China Limited Xiamen Haicang sub branch Pledgor: POWEROAD (XIAMEN) RENEWABLE ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2021980002126 |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 9 Shengli Road, Bajia Village, Gutian Town, Shanghang County, Longyan City, Fujian Province, 364200 Patentee after: Fujian Liangdao New Energy Development Co.,Ltd. Country or region after: China Address before: 702, Haiyun Building, No. 16 Haishan Road, Huli District, Xiamen City, Fujian Province, 361000 Patentee before: POWEROAD (XIAMEN) RENEWABLE ENERGY TECHNOLOGY CO.,LTD. Country or region before: China |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20190531 Pledgee: Bank of China Limited Xiamen Haicang sub branch Pledgor: Fujian Liangdao New Energy Development Co.,Ltd. Registration number: Y2021980002126 |
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| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20251107 Registration number: Y2021980002126 Pledgor after: Fujian Liangdao New Energy Development Co.,Ltd. Pledgor before: POWEROAD (XIAMEN) RENEWABLE ENERGY TECHNOLOGY CO.,LTD. |