CN105391152A - Backup direct-current high voltage power supply for super capacitor - Google Patents
Backup direct-current high voltage power supply for super capacitor Download PDFInfo
- Publication number
- CN105391152A CN105391152A CN201510982244.9A CN201510982244A CN105391152A CN 105391152 A CN105391152 A CN 105391152A CN 201510982244 A CN201510982244 A CN 201510982244A CN 105391152 A CN105391152 A CN 105391152A
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- CN
- China
- Prior art keywords
- converter
- power supply
- charger
- super capacitor
- ultracapacitor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a backup direct-current high voltage power supply for a super capacitor. The backup direct-current high voltage power supply comprises an alternating current-direct current converter, the super capacitor, a charger and a diode, wherein an input end of the alternating current-direct current converter is connected to alternating current provided by a power supply system; an output end of the alternating current-direct current converter is connected with a load; the alternating current-direct current converter is used for converting alternating current provided by the power supply system into direct current to supply electricity to the load; the super capacitor is connected with the charger in series and is connected to the output end of the alternating current-direct current converter; and the discharge diode is connected to the charger in parallel.
Description
Technical field
The present invention relates to power technique fields, more particularly, the present invention relates to a kind of DC high-voltage power supply of super capacitor standby.
Background technology
Use the main equipment of high-voltage DC power supply (direct current 270V or other specifications), due to its importance and complexity, can not interruption of power supply in operation.For preventing civil power from causing equipment outage because thunderbolt, tripping operation, instantaneous short circuit etc. are unexpected, needing to install energy storage device in the front end of equipment, is generally storage battery.When power failure occurs, provided the electric power of short time by storage battery, maintenance work.
The dead time of most of civil power is shorter, is called " sudden strain of a muscle stops ", from several ms to several seconds.As long as the electric power therefore laying in a few second just can be evaded most " sudden strain of a muscle stops ".The shortcoming of batteries is that discharge capability is limited.In order to reach the requirement of discharging current, the capacity of increasing storage battery of just having to, system configuration is unreasonable.
And storage battery is chemical energy storage parts, also exist control complicated, useful life is short, maintenance workload is large, and the problems such as heavy metal environmental pollution, its application is more and more restricted.
Summary of the invention
Technical problem to be solved by this invention is for there is above-mentioned defect in prior art, there is provided a kind of DC high-voltage power supply of super capacitor standby, it can avoid using large-capacity battery and the uninterrupted power supply of very short " sudden strain of a muscle stops " period time that simultaneously can meet.
In order to realize above-mentioned technical purpose, according to the present invention, providing a kind of DC high-voltage power supply of super capacitor standby, comprising: AC-DC converter, ultracapacitor, charger and diode; Wherein, the alternating current that the input of described AC-DC converter access electric power system provides, the output of described AC-DC converter connects load; It is load supplying that the alternating current that described AC-DC converter is used for electric power system being provided converts direct current to; Described ultracapacitor and charger in series connect, and be connected to described AC-DC converter output, discharge diode is connected in parallel on charger.
Preferably, described charger is the charging of described ultracapacitor for the direct current utilizing described AC-DC converter and export, and the direction of charging current of described charger when being the charging of described ultracapacitor is flow through ultracapacitor and charger from the output cathode of described AC-DC converter, then to the output negative pole of AC-DC converter.
Preferably, described ultracapacitor is used for the electric discharge when the electric power system that the input of described AC-DC converter accesses is stopped power supply to be load supplying, and the discharging current of described ultracapacitor is through the diode be connected in parallel on charger without charger.
Preferably, the alternating current that described electric power system provides is the three-phase alternating current of 380V.
Preferably, described AC/DC electric pressure converter is used for the direct current three-phase alternating current of 380V being converted to 270V.
Preferably, described AC/DC electric pressure converter is a kind of AC/DC power array.Be also called HVDC Switching Power Supply array.
Accompanying drawing explanation
By reference to the accompanying drawings, and by reference to detailed description below, will more easily there is more complete understanding to the present invention and more easily understand its adjoint advantage and feature, wherein:
Fig. 1 schematically shows the block diagram of the DC high-voltage power supply of super capacitor standby according to the preferred embodiment of the invention.
It should be noted that, accompanying drawing is for illustration of the present invention, and unrestricted the present invention.Note, represent that the accompanying drawing of structure may not be draw in proportion.Further, in accompanying drawing, identical or similar element indicates identical or similar label.
Embodiment
In order to make content of the present invention clearly with understandable, below in conjunction with specific embodiments and the drawings, content of the present invention is described in detail.
Fig. 1 schematically shows the block diagram of the DC high-voltage power supply of super capacitor standby according to the preferred embodiment of the invention.
As shown in Figure 1, the DC high-voltage power supply of super capacitor standby according to the preferred embodiment of the invention comprises: AC-DC converter, ultracapacitor, charger and diode.
Wherein, the alternating current that the input of described AC-DC converter access electric power system provides, two outputs of described AC-DC converter connect the two ends of load respectively; The alternating current that described AC/DC electric pressure converter is used for electric power system to provide converts direct current to, and utilizes the direct current be converted to be load supplying.
Wherein, after described ultracapacitor serial connection charge device, be connected to the output of described AC-DC converter, a diode in parallel on charger.
Thus, described charger is the charging of described ultracapacitor for the direct current utilizing described AC-DC converter and export, and the direction of charging current of described charger when being the charging of described ultracapacitor is that the positive pole exported from described AC-DC converter flows to ultracapacitor, charger, at the negative pole to described AC-DC converter.
When the electric power system that the input of described AC-DC converter accesses is stopped power supply, described ultracapacitor electric discharge is to be load supplying, and the discharging current of wherein said ultracapacitor is through the diode be connected in parallel on charger without charger.
In other words, the charging current of ultracapacitor is through " charger ", and usual discharging current is more much bigger than charging current, and the direction of discharging current is contrary with charging current, and discharging current is through this diode without charger.
When front end input 3 cross streams power supplys have electric time, via AC-DC converter directly to load supplying; Charged to ultracapacitor by charger simultaneously.After front end has a power failure, super capacitor powers to the load, and the fault offset stored out, maintains load supplying a period of time.The length of holding time is determined by the capacity of super capacitor and the size of load current.
Such as, as shown in Figure 1, the alternating current that electric power system provides is the three-phase alternating current (that is, 3 Φ 380Vac shown in Fig. 1) of 380V.And such as, as shown in Figure 1, the three-phase alternating current of 380V is converted to the direct current (that is, the 270Vdc shown in Fig. 1) of 270V by described AC-DC converter, can certainly convert the direct voltage of other specifications to.
Such as, as shown in Figure 1, described AC/DC electric pressure converter is HVDC (high voltage direct current) Switching Power Supply array (a kind of AC/DC power array).
Ultracapacitor, also referred to as " double electric layer capacitor ", based on the work of electric double layer principle, has the capacitor of the high power density of ordinary capacitor and the high-energy-density of storage battery concurrently.Along with the progress of nano-carbon material and electrode fabrication technology, the performance of ultracapacitor is constantly improved, and especially energy density is greatly improved, and has and realizes large-capacity power energy storage, substitutes the development potentiality of storage battery.Ultracapacitor belongs to physics energy storage device, its charge and discharge process nature is the adsorption and desorption process of conductive ion on electrode, to electron ion ordered arrangement after charging, comes back to disordered state after electric discharge.The surface area that electrode material is huge makes this process not have too many obstacle, and its charging and discharging currents is unrestricted in theory, thus has very high power density and efficiency for charge-discharge.And, manufacture the material of ultracapacitor not containing heavy metal, can not to environment.
By adopting the DC high-voltage power supply of above-mentioned super capacitor standby of the present invention, when the electric power system of such as civil power and so on occurs the of short duration sudden strain of a muscle stopping time because of certain factor, being maintained by ultracapacitor, providing continual direct current supply to load.A key property of ultracapacitor is that the current ratio battery that sparks is much bigger, can meet the requirement of energy and the requirement of discharging current simultaneously.
In addition, it should be noted that, unless stated otherwise or point out, otherwise the term " first " in specification, " second ", " the 3rd " etc. describe only for distinguishing each assembly, element, step etc. in specification, instead of for representing logical relation between each assembly, element, step or ordinal relation etc.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (6)
1. a DC high-voltage power supply for super capacitor standby, is characterized in that comprising: AC-DC converter, ultracapacitor, charger and diode; Wherein, the alternating current that the input of described AC-DC converter access electric power system provides, the output of described AC-DC converter connects load; It is load supplying that the alternating current that described AC-DC converter is used for electric power system being provided converts direct current to; Be connected to described AC-DC converter output after described ultracapacitor and charger in series, discharge diode is connected in parallel on charger.
2. the DC high-voltage power supply of super capacitor standby according to claim 1, it is characterized in that, described charger is the charging of described ultracapacitor for the direct current utilizing described AC-DC converter and export, and the direction of charging current when described charger is the charging of described ultracapacitor is flow through ultracapacitor and the charger negative pole to AC-DC converter from the output cathode of described AC-DC converter.
3. the DC high-voltage power supply of super capacitor standby according to claim 1 and 2, is characterized in that, described ultracapacitor is used for the electric discharge when the electric power system that the input of described AC-DC converter accesses is stopped power supply to be load supplying.The discharging current of described ultracapacitor is without charger but the diode be connected in parallel on charger.
4. the DC high-voltage power supply of super capacitor standby according to claim 1 and 2, is characterized in that, the alternating current that described electric power system provides is the three-phase alternating current of 380V.
5. the DC high-voltage power supply of super capacitor standby according to claim 1 and 2, is characterized in that, described AC/DC electric pressure converter is used for the direct current three-phase alternating current of 380V being converted to 270V.
6. the DC high-voltage power supply of super capacitor standby according to claim 1 and 2, is characterized in that, described AC-DC converter is a kind of AC/DC power array, can multiple stage parallel operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510982244.9A CN105391152A (en) | 2015-12-23 | 2015-12-23 | Backup direct-current high voltage power supply for super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510982244.9A CN105391152A (en) | 2015-12-23 | 2015-12-23 | Backup direct-current high voltage power supply for super capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105391152A true CN105391152A (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510982244.9A Pending CN105391152A (en) | 2015-12-23 | 2015-12-23 | Backup direct-current high voltage power supply for super capacitor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201893600U (en) * | 2010-12-10 | 2011-07-06 | 苏州能健电气有限公司 | Standby power supply device for wind power pitch system |
| CN202059229U (en) * | 2011-04-02 | 2011-11-30 | 西安科技大学 | DC uninterrupted power supply device adopting super capacitor as energy accumulator |
| CN202997627U (en) * | 2012-12-18 | 2013-06-12 | 四川汇友电气有限公司 | Intelligent monitoring back-up power source device for super-capacitive isolation switch |
| CN103457321A (en) * | 2013-08-29 | 2013-12-18 | 上海铁路通信有限公司 | Vehicle equipment power-off time delay protection device based on super capacitor |
| CN204230962U (en) * | 2014-11-03 | 2015-03-25 | 浙江海得新能源有限公司 | A kind of UPS based on capacitance energy storage |
-
2015
- 2015-12-23 CN CN201510982244.9A patent/CN105391152A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201893600U (en) * | 2010-12-10 | 2011-07-06 | 苏州能健电气有限公司 | Standby power supply device for wind power pitch system |
| CN202059229U (en) * | 2011-04-02 | 2011-11-30 | 西安科技大学 | DC uninterrupted power supply device adopting super capacitor as energy accumulator |
| CN202997627U (en) * | 2012-12-18 | 2013-06-12 | 四川汇友电气有限公司 | Intelligent monitoring back-up power source device for super-capacitive isolation switch |
| CN103457321A (en) * | 2013-08-29 | 2013-12-18 | 上海铁路通信有限公司 | Vehicle equipment power-off time delay protection device based on super capacitor |
| CN204230962U (en) * | 2014-11-03 | 2015-03-25 | 浙江海得新能源有限公司 | A kind of UPS based on capacitance energy storage |
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Application publication date: 20160309 |
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