CN208955739U - A kind of uninterruption power source device for energy-storage system - Google Patents
A kind of uninterruption power source device for energy-storage system Download PDFInfo
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- CN208955739U CN208955739U CN201821740837.XU CN201821740837U CN208955739U CN 208955739 U CN208955739 U CN 208955739U CN 201821740837 U CN201821740837 U CN 201821740837U CN 208955739 U CN208955739 U CN 208955739U
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Abstract
The utility model provides a kind of uninterruption power source device for energy-storage system, including AC/DC power module, DC/DC power module, normally-open normally-close type solid-state relay, filtering and protection circuit, lithium iron battery module, battery protection module, the normally opened contact of AC/DC power module connection normally-open normally-close type solid-state relay, AC/DC power module is powered to solid-state relay control circuit, the normally-closed contact of DC/DC power module connection normally-open normally-close type solid-state relay, filtering and protection circuit connect in solid-state relay load end, it is filtered to power supply, battery protection module and lithium battery module constitute uninterruptible power system, constitute the device finally prevents power-off defence line together.The utility model novel in structural design, the light current power supply system uninterrupted power supply that composition double loop power supply powers while there is lithium battery backup power supply can guarantee energy-storage system, it is reliable and stable, modularization extension is strong, use scope is wide, it is at low cost, completely solve the stabilization and cost problem of the power supply of energy-storage system light current.
Description
Technical field
The utility model belongs to power supply field, and in particular to a kind of uninterruption power source dress for energy-storage system
It sets.
Background technique
Adjustment of the country to energy resource structure at present, to realize smart grid peak load shifting, microgrid energy storage, it is fast that echelon utilizes etc.
New energy industry is vigorously supported in speed development, especially country, and new energy lithium battery energy storage battery is like the mushrooms after rain.Lithium-ion electric
Pond have energy density is big, self discharge is small, without memory effect, operating temperature range is wide, can be quickly charged and discharged, service life
Length does not have the advantages that environmental pollution, referred to as green battery, is the main trend of current new energy.
Lithium electricity energy-storage system also gradually embodies its advantage, occur gradually over intelligent building, communication base station, photovoltaic plant,
The application such as micro-grid system, electric system, lithium battery energy storage battery system have system response is fast, and energy density is high, and green cleans etc.
Feature and be acceptable to the market.But the low voltage control system of the mutually auxiliary interpromoting relation in five elements of energy-storage system is also wherein crucial factor, it is ensured that
The safety of energy-storage system, reliability, stability etc. it is necessary that low-voltage control power stability, low-voltage power supply
Stability restrict the stability of system.
Low-voltage power supply principal security energy-storage system battery management system, safety fire fighting system is long-range to monitor, relay
The control etc. of equal electrical parts is very the key link, but most of energy-storage system uses single supply system at present, such as
Band AC/DC circuit all the way.When AC down circuitry or it is unstable when cause energy-storage system to collapse, another be DC/DC become
Circuit is changed, but is easy to SOC caused by causing battery system overdischarge and low current and is not allowed, is easy to keep energy-storage system paralysed
Paralysis, it is last a kind of it is more commonly used be using ups power, but UPS cost is generally higher at present, and space hold is larger to be made simultaneously
The UPS service life of the battery used as storage is too short, and maintenance cost is high.It is straight that CN200820077278.9 discloses a kind of illumination use
Energy-storage power supplying apparatus is flowed, which with DC energy storage power supply unit charged automatically by automatic charge control circuit and parallel be connected to
The exchange of control circuit input terminal is isolated charging circuit, solar battery voltage up converting circuit and is connected to automatic charge control circuit
Battery group XDC, the output protection control circuit BHDL of output end are formed.The illumination is mainly utilized with DC energy storage power supply unit
Solar panel acquires the energy, and by energy dump in energy storage system, it is simple and convenient, no that one kind can be provided for lighting consumer
Intermittent DC low-voltage power supply, but the utility model is difficult to be suitable for the control extra high system of power supply.
Utility model content
The purpose of this utility model is to provide a kind of uninterruption power source devices, using electronic circuit and solid-state relay
Device is realized, while possessing the different power supply in three tunnels is load supplying, control power supply that can be stable, suitable for wanting to control power supply
Extra high system is asked to use.
The utility model is implemented with the following technical solutions:
A kind of uninterruption power source device for energy-storage system, including AC/DC power module, DC/DC power module,
Uninterruptible Power Module, normally-open normally-close type solid-state relay；The AC/DC power module connects normally-open normally-close type solid-state relay
Normally opened contact, power for the normally-open normally-close type solid-state relay, the DC/DC power module connects normally-open normally-close type solid-state
The normally-closed contact of relay, the Uninterruptible Power Module are composed in series by battery module and battery protection module, the battery
Module connects the load end of the normally-open normally-close type solid-state relay by battery protection module；The battery protection module uses
The same mouth of charging and discharging has and overcharges protection, the output of the output voltage of the AC/DC power module, the DC/DC power module
The voltage of voltage and the Uninterruptible Power Module is equal.
Further, the AC/DC power module, DC/DC power module and Uninterruptible Power Module are connected using universal hole
Connect installation.
Further, the normally-open normally-close type solid-state relay be switching time≤1 millisecond normally-open normally-close type solid-state after
Electric appliance.
Further, the normally-open normally-close type solid-state relay load end is also connected with filtering and protection circuit.
Further, the filtering and protection circuit are provided with filter capacitor, freewheeling diode and varistor.
Further, the quantity of the AC/DC power module is 1 or more, and the quantity of the DC/DC power module is 1
More than a, the quantity of the Uninterruptible Power Module is 1 or more.
Further, the battery module uses lithium iron battery.
Further, the voltage of the uninterruption power source device is the one of which of 24V, 12V, 36V and 48V.
Further, the battery protection module selects corresponding lithium battery protection board string number according to the voltage.
In use, AC/DC power module is powered to the control line of normally-open normally-close type solid-state relay, keep normally-open normally-close type solid
State relay normally open contact closure, by AC/DC power module powering load.When AC/DC power loss, normally-open normally-close type solid-state after
Electric appliance normally opened contact can disconnect automatically, and normally-closed contact can be closed automatically, at this time by DC/DC power module powering load.Work as AC/
DC and DC/DC circuit all power loss when, be connected to the Uninterruptible Power Module of solid-state relay load end and turned by floating charge state
Become discharge condition, as backup power source powering load.
220V alternating current is converted into the direct current of required voltage by AC/DC power module, the first order electricity as this device
Source.The DC power supply of energy-storage system is converted into the direct current of required voltage by DC/DC power module, the second level electricity as this device
Source.Battery module and third level power supply of the battery protection module Uninterruptible Power Module in series as this device, the third level
Power source charges and the same mouth that discharges, the protection battery module of energy safety and stability.Power supply is filtered by filtering and protection circuit, is passed through
Freewheeling diode and the stable output of varistor protection power source.
The utility model has the beneficial effects that
The utility model is used for the uninterruptible power supply power supply unit of energy-storage system, and the first via preferentially uses AC/DC transformation electricity
Source, the second tunnel uses DC/DC translation circuit, while Uninterruptible Power Module forms last one of anti-power failure defence line of the device,
Has the lithium iron battery power supply that extreme environment guarantees third road.Apparatus moduleization collocation, space is small, and integrated level is high.
AC/DC power module, DC/DC power module and Uninterruptible Power Module are pacified using universal hole in the utility model
Dress can select AC/DC power module, DC/DC power module and Uninterruptible Power Module according to the security level of energy-storage system
Quantity.
Battery protection module uses the same mouth of charge and discharge in the utility model, has and overcharges protection, it is ensured that battery module
Safe handling.
The normally-open normally-close type solid-state relay of the utility model has an extremely low power dissipation, switching time≤1 millisecond, and when switching is
Seamless switching.
It is filtered in the utility model and circuit is protected to be provided with filter capacitor, freewheeling diode and varistor, for giving
Power supply is filtered, while guaranteeing that output waveform meets the safety of requirement and output.
The device integrated level of the utility model is high, and modularized design, multiple power supplies guarantee effective protection circuit, stablizes
Property it is high, control cost has obtained effective control, solves the problems, such as energy-storage system low-voltage power supply.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structure principle chart of the utility model.
Specific embodiment
In order to be more clear the purpose of this utility model, technical solution and advantageous effects, below in conjunction with attached drawing and
Embodiment, the present invention will be further described in detail.It should be understood that embodiment described in this specification is only
Merely to explaining the utility model, it is not intended to limitation the utility model.
Such as Fig. 1, a kind of 24V uninterruption power source device for energy-storage system, including AC/DC power module, DC/DC
Power module, 24V lithium iron battery module, lithium iron battery protective module, normally-open normally-close type solid-state relay, filtering and protection electricity
Road.The AC/DC power module is connect with normally-open normally-close type solid-state relay, the DC/DC power module and normally-open normally-close type
Solid-state relay connection.The 24V lithium iron battery module and lithium iron battery protective module constitute the uninterrupted battery of a 24V and power
Power supply.It is connect with normally-open normally-close type solid-state relay, constitutes three-way power.The normally-open normally-close type solid-state relay and filtering
And protection circuit connection, in the power supply for filtering and protecting circuit output stable.The filtering and protection circuit are provided with filtered electrical
Appearance, freewheeling diode and varistor.The AC/DC power module, DC/DC power module and 24V Uninterruptible Power Module are adopted
It is connected and is installed with universal hole.The battery protection module uses the same mouth of charge and discharge, has and overcharges protection.The normally-open normally-close type is solid
State relay switching time≤1 millisecond.
220V alternating current is converted into 24V direct current by AC/DC power module, the first level power supply as this device.DC/DC
The DC power supply of energy-storage system is converted into 24V DC power supply by power module, as the second level power supply.24V lithium iron battery
Module and lithium iron battery protective module constitute a 24V battery power supply and are used as third level power supply, third level power source charges and
Discharge same mouth, the protection 24V lithium iron battery module of energy safety and stability.When system is run, AC/DC power module gives normally-open normally-close type
The control line of solid-state relay is powered, and normally-open normally-close type solid-state relay normally opened contact is closed, by AC/DC power module to negative
Carry power supply.When AC/DC power loss, normally-open normally-close type solid-state relay normally opened contact can disconnect automatically, and normally-closed contact can close automatically
It closes, at this time by DC/DC power module powering load.When AC/DC and DC/DC circuit all power loss, be connected to solid-state after
The Uninterruptible Power Module at electric appliance load end is as backup power source powering load.Power supply is defeated by normally-open normally-close type solid-state relay
Out by filtering and power supply is filtered by protection circuit, pass through stable defeated of freewheeling diode and varistor protection power source
Out.First via power supply preferentially uses AC/DC converting power source, and the second road power supply uses DC/DC translation circuit, is provided simultaneously with extreme ring
Guarantee the 24V lithium battery module power supply on third road under border.Apparatus moduleization collocation, space is small, and integrated level is high, Ke Yigen
Module of freely arranging in pairs or groups is required according to energy-storage system safety factor of stability, cost is effectively controlled, solves energy-storage system low pressure
The problem of power supply.
The foregoing describe basic principles, main features, and advantages of the present invention.The skill of the industry
Art personnel it should be appreciated that the present utility model is not limited to the above embodiments, what is described in the above embodiment and the description is only
Illustrate the principles of the present invention, the utility model also has various on the premise of not departing from the spirit and scope of the utility model
Changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The requires of the utility model protection
Range is defined by appended claims and its equivalent.
Claims (9)
1. a kind of uninterruption power source device for energy-storage system, which is characterized in that including AC/DC power module, DC/DC
Power module, Uninterruptible Power Module, normally-open normally-close type solid-state relay；The AC/DC power module connects normally-open normally-close type
The normally opened contact of solid-state relay, while powering for the normally-open normally-close type solid-state relay；The DC/DC power module connection
The normally-closed contact of normally-open normally-close type solid-state relay；The Uninterruptible Power Module is connected by battery module and battery protection module
Composition, the battery module connect the load end of the normally-open normally-close type solid-state relay by battery protection module；The electricity
Pond protective module uses the same mouth of charging and discharging, has and overcharges protection, output voltage, the DC/DC of the AC/DC power module
The voltage of the output voltage of power module and the Uninterruptible Power Module is equal.
2. the uninterruption power source device according to claim 1 for energy-storage system, which is characterized in that the AC/
DC power module, DC/DC power module and Uninterruptible Power Module connect installation using universal hole.
3. the uninterruption power source device according to claim 1 for energy-storage system, which is characterized in that described normally opened
Closed type solid-state relay is the normally-open normally-close type solid-state relay of switching time≤1 millisecond.
4. the uninterruption power source device according to claim 1 for energy-storage system, which is characterized in that described normally opened
Closed type solid-state relay load end is also connected with filtering and protection circuit.
5. the uninterruption power source device according to claim 4 for energy-storage system, which is characterized in that the filtering
And protection circuit is provided with filter capacitor, freewheeling diode and varistor.
6. the uninterruption power source device according to claim 1 for energy-storage system, which is characterized in that the AC/
The quantity of DC power module is 1 or more, and the quantity of the DC/DC power module is 1 or more, the Uninterruptible Power Module
Quantity be 1 or more.
7. the uninterruption power source device according to claim 1 for energy-storage system, which is characterized in that the battery
Module uses lithium iron battery.
8. the uninterruption power source device according to claim 1 for energy-storage system, which is characterized in that it is described not between
The voltage of cut-off power supply is the one of which of 24V, 12V, 36V and 48V.
9. the uninterruption power source device according to claim 8 for energy-storage system, which is characterized in that the battery
Protective module selects corresponding lithium battery protection board string number according to the voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821740837.XU CN208955739U (en) | 2018-10-26 | 2018-10-26 | A kind of uninterruption power source device for energy-storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821740837.XU CN208955739U (en) | 2018-10-26 | 2018-10-26 | A kind of uninterruption power source device for energy-storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208955739U true CN208955739U (en) | 2019-06-07 |
Family
ID=66743012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821740837.XU Active CN208955739U (en) | 2018-10-26 | 2018-10-26 | A kind of uninterruption power source device for energy-storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208955739U (en) |
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2018
- 2018-10-26 CN CN201821740837.XU patent/CN208955739U/en active Active
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Effective date of registration: 20230426 Granted publication date: 20190607 |
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