CN203895989U - Mobile energy storage device powered by two power supplies - Google Patents

Mobile energy storage device powered by two power supplies Download PDF

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Publication number
CN203895989U
CN203895989U CN201420316956.8U CN201420316956U CN203895989U CN 203895989 U CN203895989 U CN 203895989U CN 201420316956 U CN201420316956 U CN 201420316956U CN 203895989 U CN203895989 U CN 203895989U
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China
Prior art keywords
power supply
switching power
energy storage
converter cabinet
energy
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Application number
CN201420316956.8U
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Chinese (zh)
Inventor
鄢盛驰
张宇
苏广宁
刘舒
杨波
陶以彬
李官军
俞斌
桑丙玉
刘欢
周晨
胡金杭
冯鑫振
余豪杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Electric Power Research Institute Co Ltd CEPRI
State Grid Shanghai Electric Power Co Ltd
East China Power Test and Research Institute Co Ltd
Original Assignee
China Electric Power Research Institute Co Ltd CEPRI
State Grid Shanghai Electric Power Co Ltd
East China Power Test and Research Institute Co Ltd
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Application filed by China Electric Power Research Institute Co Ltd CEPRI, State Grid Shanghai Electric Power Co Ltd, East China Power Test and Research Institute Co Ltd filed Critical China Electric Power Research Institute Co Ltd CEPRI
Priority to CN201420316956.8U priority Critical patent/CN203895989U/en
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Abstract

The utility model relates to a mobile energy storage device powered by two power supplies. The mobile energy storage device is composed of an energy storage battery, an energy storage transformer cabinet, a direct-current converter cabinet, a UPS power supply, a first AC / DC switching power supply, a first DC / DC switching power, a second AC / DC switching power supply and a second DC / DC switching power supply. The output terminal of the energy storage battery is respectively connected with input terminals of the first AC / DC switching power supply and the second DC / DC switching power supply; output terminals of the first AC / DC switching power supply and the first DC / DC switching power are respectively connected with the input terminal of the energy storage transformer cabinet; output terminals of the second AC / DC switching power supply and the second DC / DC switching power supply are respectively connected with the input terminal of the direct-current converter cabinet; the output terminal of the energy storage transformer cabinet is connected with the input terminal of the UPS power supply; and the output terminal of the UPS power supply is respectively connected with the input terminals of the first AC / DC switching power supply and the second AC / DC switching power supply. Compared with the prior art, with the mobile energy storage device, a problem that the traditional mobile energy storage system that is in idle for long time can not be started can be solved.

Description

The Mobile energy storage equipment of dual power supply
Technical field
The utility model relates to a kind of Mobile energy storage system, especially relates to a kind of Mobile energy storage equipment of dual power supply.
Background technology
Due to time and region factors, electrical network is different in the power load of different time different location, and load difference in particular cases even reaches decades of times, can cause regional area, local period to occur low-voltage phenomenon.And when power load is lower, transformer is close to no-load running, electricity consumption load factor is low, and no-load loss is high, and power supplying efficiency is low.For this situation, on market, developed mobile battery energy-storage system, in order to interactive with power distribution network, during low power consumption, pass through its electrical network to batteries charging energy storage, during peak times of power consumption, by its battery power discharge feedback grid, electrical network is carried out to part and avoid the peak hour and adjust paddy, balanced power load.Mobile battery energy-storage system also can be used for the back-up source of special occasions simultaneously, emergent various accidents.
The control power supply of current Mobile energy storage system on the market, all by configuring a small-sized ups power, power, due to the reason such as the battery capacity of ups power is less, if system is idle off-duty for a long time, and do not safeguard, can, because ups power electric weight exhausts, can not power to control system, cause system to start, the normal consequence of using of impact.If single from energy-storage battery power taking, in order to the power supply of control system, same dangerous hidden danger.When system is normally moved, the power-off of energy-storage battery fault, control system dead electricity, whole system is out of hand, can cause unpredictable consequence.If the energy-storage system long period is not used operation, the battery in UPS will exhaust electric weight due to reasons such as self discharges, in this case, just cannot give the control system power supply of Mobile energy storage system, causes energy-storage system to start, and impact is used.
Utility model content
The purpose of this utility model is exactly a kind of Mobile energy storage equipment of reliable and practical dual power supply that provides in order to overcome the defect of above-mentioned prior art existence, solve the problem that traditional Mobile energy storage system cannot start long-time idle in the situation that, increased reliability and the practicality of Mobile energy storage system.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of Mobile energy storage equipment of dual power supply, comprise energy-storage battery, energy accumulation current converter cabinet, DC converter cabinet and ups power, it is characterized in that, also comprise an AC/DC Switching Power Supply, a DC/DC Switching Power Supply, the 2nd AC/DC Switching Power Supply and the 2nd DC/DC Switching Power Supply; The output of described energy-storage battery connects respectively the input of a DC/DC Switching Power Supply and the 2nd DC/DC Switching Power Supply, the output of a described AC/DC Switching Power Supply, a DC/DC Switching Power Supply connects respectively the input of energy storage converter cabinet, the output of described the 2nd AC/DC Switching Power Supply, the 2nd DC/DC Switching Power Supply connects respectively the input of DC converter cabinet, the output of described energy accumulation current converter cabinet connects the input of ups power, and the output of described ups power connects respectively the input of an AC/DC Switching Power Supply and the 2nd AC/DC Switching Power Supply.
Also comprise control subsystem, this control subsystem comprises energy accumulation current converter cabinet control unit and DC converter cabinet control unit.
The power supply of described energy accumulation current converter cabinet control unit and DC converter cabinet control unit is 24V direct current.
The power supply providing by ups power and the power supply providing by energy-storage battery are provided the power supply of described energy accumulation current converter cabinet control unit and DC converter cabinet control unit.
The 24V direct current of described ups power by obtaining the conversion of an AC/DC Switching Power Supply and the 2nd AC/DC Switching Power Supply is in order to provide control subsystem power supply.
The 24V direct current of described energy-storage battery by obtaining the conversion of a DC/DC Switching Power Supply and the 2nd DC/DC Switching Power Supply is in order to provide control subsystem power supply.
When this energy-storage system normally moves, if the power-off of described energy-storage battery fault, described ups power continues as control system power supply, guarantees that described energy-storage system normally moves.
Under normal condition, described control subsystem is powered by ups power and energy-storage battery simultaneously.
Long-time off-duty, the battery of described ups power is without electricity, and described control subsystem is powered by energy-storage battery, and after described energy-storage system starts, described ups power exchanges outlet side by energy-storage system and powers, and charging is also powered to control subsystem.
Compared with prior art, the utlity model has following advantage:
(1) device of the present utility model can carry out uninterrupted power supply to the control subsystem of Mobile energy storage system, improves practicality and the operational reliability of Mobile energy storage system, and the fail safe of system operation is also improved greatly.
(2) device of the present utility model can solve potential safety hazard, by double loop power supply, control subsystem is carried out to uninterrupted power supply, improves the reliability of Mobile energy storage system, guarantees system run all right.
(3) device of the present utility model is on original basis powering to control system by ups power, increased by energy-storage battery and powered, improved the control subsystem reliability of operation of Mobile energy storage system, carry out uninterrupted power supply, greatly improve fail safe, guaranteed the safe operation of system.
(4) device of the present utility model has guaranteed the stability of portable power supply energy-storage system, and then guarantee when power load is lower and power distribution network interaction, during low power consumption by its electrical network to batteries charging energy storage, during peak times of power consumption by the stability of its battery power discharge feedback grid.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1-energy-storage battery wherein; 2-energy accumulation current converter cabinet; 3-DC converter cabinet; 4-UPS power supply; 5-the one AC/DC Switching Power Supply; 6-the one DC/DC Switching Power Supply; 7-the 2nd AC/DC Switching Power Supply; 8-the 2nd DC/DC Switching Power Supply.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment
The structure chart of the Mobile energy storage equipment that as shown in Figure 1, Fig. 1 is dual power supply, the Mobile energy storage equipment of dual power supply comprises energy-storage battery 1, energy accumulation current converter cabinet 2, DC converter cabinet 3, ups power 4, the one AC/DC Switching Power Supply 5, the one DC/DC Switching Power Supply 6, the 2nd AC/DC Switching Power Supply 7 and the 2nd DC/DC Switching Power Supply 8, wherein an AC/DC Switching Power Supply 5 and the 2nd AC/DC Switching Power Supply 7 are AC220V/DC24V Switching Power Supply, the one DC/DC Switching Power Supply 6 and the 2nd DC/DC Switching Power Supply 8 are DC450~800V/DC24V Switching Power Supply, the control subsystem of energy-storage system comprises the control unit of energy accumulation current converter cabinet 2 and the control unit of DC converter cabinet 3, energy accumulation current converter cabinet 2 and DC converter cabinet 3 comprise respectively major loop and control unit separately separately.
The output lead of energy-storage battery connects the input of a DC/DC Switching Power Supply 6 and the 2nd DC/DC Switching Power Supply 8, the output lead of the one AC/DC Switching Power Supply 5, a DC/DC Switching Power Supply 6 connects the input of energy storage converter cabinet 2, the output lead of the 2nd AC/DC Switching Power Supply 7, the 2nd DC/DC Switching Power Supply 8 connects the input of DC converter cabinet 3, the output lead of energy accumulation current converter cabinet 2 connects the input of ups power 4, and the output lead of ups power 4 connects the input of an AC/DC Switching Power Supply 5 and the 2nd AC/DC Switching Power Supply 7.
Energy-storage battery is as the power supply of Mobile energy storage system control sytsem automatic electricity getting, the one DC/DC Switching Power Supply 6 is provided, the input of the 2nd DC/DC Switching Power Supply 8 Switching Power Supplies, the one AC/DC Switching Power Supply 5, the one DC/DC Switching Power Supply 6, the 2nd AC/DC Switching Power Supply 7, the 2nd DC/DC Switching Power Supply 8 is that the control unit of energy accumulation current converter cabinet PCS2 and DC converter DC/DC3 is directly powered, ups power 4 is by being an AC/DC Switching Power Supply 5, the 2nd AC/DC Switching Power Supply 7 power supplies, another road power supply of the control unit of energy accumulation current converter cabinet 2 and DC converter cabinet 3 is provided, the interchange output while of energy accumulation current converter cabinet PCS2 is as the input power taking of ups power 4.
Under normal circumstances, energy-storage battery 1 and ups power 4 are given an AC/DC Switching Power Supply 5, a DC/DC Switching Power Supply 6, the 2nd AC/DC Switching Power Supply 7, the 2nd DC/DC Switching Power Supply 8 power supplies, and the control unit power supply of energy accumulation current converter PCS2 and DC converter 3 is provided.
System is idle for a long time, during ups power 4 nothing electricity, by energy-storage battery 1, by a DC/DC Switching Power Supply 6, the 2nd DC/DC Switching Power Supply 8, power to the control unit of energy accumulation current converter cabinet 2 and the control unit of DC converter 3, after system starts, energy accumulation current converter cabinet 2 output AC electricity give ups power 4 power supplies, and the control unit of the control unit of energy accumulation current converter cabinet 2 and DC converter cabinet 3 recovers double loop power supply power supply; System operation, during energy-storage battery 1 fault power-off, is powered to the control unit of energy accumulation current converter cabinet 2 and DC converter cabinet 3 by an AC/DC Switching Power Supply 5, the 2nd AC/DC Switching Power Supply 7 by ups power 4, guarantees system normal process fault, alarm shutdown.
The control unit power supply of the control unit of energy accumulation current converter cabinet 2 and DC converter cabinet 3, on the basis powering by small-sized ups power, has increased and has passed through respectively a DC/DC Switching Power Supply 6 and the 2nd DC/DC Switching Power Supply 8 from energy-storage battery 2 power takings.
Finally should be noted that: above embodiment is only for illustrating the application's technical scheme but not restriction to its protection range; although the application is had been described in detail with reference to above-described embodiment; those of ordinary skill in the field are to be understood that: those skilled in the art still can carry out all changes, revise or be equal to replacement to the embodiment of application after reading the application; but these change, revise or be equal to replacement, within the claim protection range all awaiting the reply in application.

Claims (4)

1. the Mobile energy storage equipment of a dual power supply, comprise energy-storage battery, energy accumulation current converter cabinet, DC converter cabinet and ups power, it is characterized in that, also comprise an AC/DC Switching Power Supply, a DC/DC Switching Power Supply, the 2nd AC/DC Switching Power Supply and the 2nd DC/DC Switching Power Supply; The output of described energy-storage battery connects respectively the input of a DC/DC Switching Power Supply and the 2nd DC/DC Switching Power Supply, the output of a described AC/DC Switching Power Supply, a DC/DC Switching Power Supply connects respectively the input of energy storage converter cabinet, the output of described the 2nd AC/DC Switching Power Supply, the 2nd DC/DC Switching Power Supply connects respectively the input of DC converter cabinet, the output of described energy accumulation current converter cabinet connects the input of ups power, and the output of described ups power connects respectively the input of an AC/DC Switching Power Supply and the 2nd AC/DC Switching Power Supply.
2. a kind of Mobile energy storage equipment of dual power supply according to claim 1, is characterized in that, also comprise control subsystem, this control subsystem comprises energy accumulation current converter cabinet control unit and DC converter cabinet control unit.
3. a kind of Mobile energy storage equipment of dual power supply according to claim 2, is characterized in that, the power supply of described energy accumulation current converter cabinet control unit and DC converter cabinet control unit is 24V direct current.
4. a kind of Mobile energy storage equipment of dual power supply according to claim 2, it is characterized in that, the power supply providing by ups power and the power supply providing by energy-storage battery are provided the power supply of described energy accumulation current converter cabinet control unit and DC converter cabinet control unit.
CN201420316956.8U 2014-06-13 2014-06-13 Mobile energy storage device powered by two power supplies Active CN203895989U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420316956.8U CN203895989U (en) 2014-06-13 2014-06-13 Mobile energy storage device powered by two power supplies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420316956.8U CN203895989U (en) 2014-06-13 2014-06-13 Mobile energy storage device powered by two power supplies

Publications (1)

Publication Number Publication Date
CN203895989U true CN203895989U (en) 2014-10-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104009490A (en) * 2014-06-13 2014-08-27 国网上海市电力公司 Mobile energy storage system for dual power supply

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104009490A (en) * 2014-06-13 2014-08-27 国网上海市电力公司 Mobile energy storage system for dual power supply

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