CN203135592U - Super-capacitor energy-storing system - Google Patents
Super-capacitor energy-storing system Download PDFInfo
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- CN203135592U CN203135592U CN 201320154452 CN201320154452U CN203135592U CN 203135592 U CN203135592 U CN 203135592U CN 201320154452 CN201320154452 CN 201320154452 CN 201320154452 U CN201320154452 U CN 201320154452U CN 203135592 U CN203135592 U CN 203135592U
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- super capacitor
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Abstract
The utility model relates to a super-capacitor energy-storing system including a rectifier, a super capacitor, an inverter and an LC filter. The super capacitor is connected with the rectifier in parallel. The super capacitor is connected with the inverter in parallel. The inverter is connected with the LC filter in series. The super capacitor is connected with a three-phase load-side bus. Since the super-capacitor energy-storing system is provided with an energy-storing unit, short-term power supply to a load can be realized in supply voltage interruption of a power distribution system. Thus, voltage fluctuation caused by load disturbance can be inhibited effectively, and good effects are realized on improving power supply capacity and power supply reliability of the power distribution system.
Description
[technical field]
The utility model relates to electrical equipment technical field, specifically, is a kind of super capacitor energy-storage system.
[background technology]
Before the seventies in 20th century, work about electric power person mainly is confined to be concerned about on these traditional power quality problems of voltage deviation, frequency departure, voltage three-phase imbalance and power supply reliability.After the eighties, nearly 5-10 particularly, along with new and high technology especially along with fast development of information technology, power consumption equipment and power electronic equipment based on computer, microprocessor control come into operation in system in a large number, they are more responsive than electromechanical equipment to system interference, thereby also higher to the requirement of power supply quality.In case power quality problem occurs, gently then cause equipment fault or stoppage in transit, heavy then cause the damage of whole system, the economic loss of bringing thus is difficult to estimate.
Voltage dip also claims voltage landing or voltage sag or voltage falling, is dynamic power quality problem the most general, that harm is maximum, has been considered to influence that power consumption equipment is normal, one of the topmost power quality problem of safe operation.Suppressing the measure of voltage dip mainly considers from power system planning and relieving apparatus two aspects.Single with regard to relieving apparatus, meritorious compensation can also be provided when energy-storage travelling wave tube makes compensating reactive power, thereby better improve the quality of power supply, use more and more widely.Present stage, energy-storage travelling wave tube mainly contains superconductive energy storage system, batteries to store energy system, flywheel energy storage system and ultracapacitor energy storage system etc.Select for use ultracapacitor as energy-storage units many advantages to be arranged: the time that discharges and recharges is short, and access times are many repeatedly, and ambient temperature is little to normal use influence, user and environment is safe from harm etc.
[utility model content]
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of super capacitor energy-storage system is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of super capacitor energy-storage system, it comprises rectifier, super capacitor, inverter and LC filter, super capacitor is in parallel with rectifier, and super capacitor is in parallel with inverter, and inverter is connected with the LC filter.
Described super capacitor links to each other with the three-phase load side bus.
Be provided with first K switch 1 between described super capacitor and the three-phase load side bus.
Described LC filter links to each other with transformer.
Be provided with second switch K2 between described LC filter and the transformer.
Described transformer links to each other with the three-phase load side bus.
Compared with prior art, good effect of the present utility model is:
The ultracapacitor energy storage system is connected in parallel on the load side bus, and its basic principle is that the three-phase alternating current electric energy becomes direct current energy through rectifier, by inverter dc inversion is become controlled three-phase alternating current, links to each other with system by transformer again.If the voltage of institute's inversion is higher than system voltage, inverter just is equivalent to a group capacitor so provides reactive power to system; If voltage is lower than system voltage, it is with consume reactive power.Since have energy-storage units, when distribution system generation supply power voltage interrupts, can be to load power supply in short-term.Like this, not only can effectively suppress the voltage fluctuation that load disturbance causes, power supply capacity and the power supply reliability that improves system also had good effect.
[description of drawings]
Fig. 1 circuit diagram of the present utility model.
Being labeled as in the accompanying drawing: B is transformer, and C is super capacitor, and I is inverter, and K1 is first switch, and K2 is second switch, and M is the three-phase load side bus, and R is rectifier, and LC is the LC filter.
[embodiment]
The embodiment of a kind of super capacitor energy-storage of the utility model system below is provided.
Embodiment 1
See also accompanying drawing 1, a kind of super capacitor energy-storage system, it comprises rectifier R, super capacitor C, inverter I and LC filter, super capacitor is in parallel with rectifier, and super capacitor is in parallel with inverter, and inverter is connected with the LC filter.
Described super capacitor links to each other with three-phase load side bus M.
Be provided with first K switch 1 between described super capacitor and the three-phase load side bus.
Described LC filter links to each other with transformer B.
Be provided with second switch K2 between described LC filter and the transformer.
Described transformer links to each other with the three-phase load side bus.
The ultracapacitor energy storage system is connected in parallel on the load side bus, and its basic principle is that the three-phase alternating current electric energy becomes direct current energy through rectifier, by inverter dc inversion is become controlled three-phase alternating current, links to each other with system by transformer again.If the voltage of institute's inversion is higher than system voltage, inverter just is equivalent to a group capacitor so provides reactive power to system; If voltage is lower than system voltage, it is with consume reactive power.Since have energy-storage units, when distribution system generation supply power voltage interrupts, can be to load power supply in short-term.Like this, not only can effectively suppress the voltage fluctuation that load disturbance causes, power supply capacity and the power supply reliability that improves system also had good effect.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model design; can also make some improvements and modifications, these improvements and modifications also should be considered as in the protection range of the present utility model.
Claims (6)
1. a super capacitor energy-storage system is characterized in that it comprises rectifier, super capacitor, and inverter and LC filter, super capacitor is in parallel with rectifier, and super capacitor is in parallel with inverter, and inverter is connected with the LC filter.
2. a kind of super capacitor energy-storage as claimed in claim 1 system is characterized in that described super capacitor links to each other with the three-phase load side bus.
3. a kind of super capacitor energy-storage as claimed in claim 1 system is characterized in that, is provided with first K switch 1 between described super capacitor and the three-phase load side bus.
4. a kind of super capacitor energy-storage as claimed in claim 1 system is characterized in that described LC filter links to each other with transformer.
5. a kind of super capacitor energy-storage as claimed in claim 1 system is characterized in that, is provided with second switch K2 between described LC filter and the transformer.
6. a kind of super capacitor energy-storage as claimed in claim 1 system is characterized in that described transformer links to each other with the three-phase load side bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154452 CN203135592U (en) | 2013-03-30 | 2013-03-30 | Super-capacitor energy-storing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154452 CN203135592U (en) | 2013-03-30 | 2013-03-30 | Super-capacitor energy-storing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203135592U true CN203135592U (en) | 2013-08-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320154452 Expired - Lifetime CN203135592U (en) | 2013-03-30 | 2013-03-30 | Super-capacitor energy-storing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203135592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292295A (en) * | 2016-11-01 | 2017-01-04 | 西南交通大学 | The method that superconducting energy storage based on Implicit Generalized PREDICTIVE CONTROL suppression Electromechanical Disturbance is propagated |
-
2013
- 2013-03-30 CN CN 201320154452 patent/CN203135592U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292295A (en) * | 2016-11-01 | 2017-01-04 | 西南交通大学 | The method that superconducting energy storage based on Implicit Generalized PREDICTIVE CONTROL suppression Electromechanical Disturbance is propagated |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
|
| CX01 | Expiry of patent term |