CN205195269U - Active power filter who holds switching control function with electricity - Google Patents
Active power filter who holds switching control function with electricity Download PDFInfo
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- CN205195269U CN205195269U CN201520544627.3U CN201520544627U CN205195269U CN 205195269 U CN205195269 U CN 205195269U CN 201520544627 U CN201520544627 U CN 201520544627U CN 205195269 U CN205195269 U CN 205195269U
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- active power
- capacitor switching
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/20—Active power filtering [APF]
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Abstract
The utility model relates to an active power filter who holds switching control function with electricity, the device is parallelly connected with load side generating line for the reactive power of compensation load side, active power filter include active power filter subassembly and electric capacity switching subassembly, the active power filter subassembly be connected with electric capacity switching subassembly and load side generating line respectively, electric capacity switching subassembly include a plurality of parallelly connected electric capacity switching units, capacitor switching on/off unit and load side generating line parallelly connected, every capacitor switching on/off unit all includes power switch and building -out capacitor, power switch be connected with the active power filter subassembly. Compared with the prior art, the utility model has the advantages of take up an area of little, the operation is reliable, application scope wide, the series classification compensation.
Description
Technical field
The utility model relates to field of power distribution, especially relates to a kind of active power filter of capacitor switching controlling functions.
Background technology
The Voltage Drop that in distribution system, reactive load can cause as rolling mill, injection molding machine, asynchronous machine and portal crane etc. and low power factor.Existing distribution network var compensation device is mainly the fixed capacitor FC of passive type, thyristor switchable capacitor etc.Said apparatus has the following disadvantages: FC can not compensate the idle of change, and response speed is slow; TSC can carry out grading compensation to idle, but during idle consecutive variations, can not accomplish full remuneration, simultaneously can not filtering harmonic wave; FC-TCR combination can to idle Continuous Compensation, but TCR can produce harmonic wave, and simultaneously because TCR can only produce delayed idle, therefore the capacity of FC is greater than with TCR capacity sum the reactive capability compensated needed for system.
General active power filter at compensation harmonic simultaneously, can provide certain reactive power for system, but be limited to the restriction of device self-capacity, during to reactive requirement larger in system, seem that some is unable to do what one wishes.
Utility model content
The purpose of this utility model is exactly provide a kind of active power filter taking up an area the capacitor switching controlling functions that little, reliable, applied widely, series classification compensates to overcome defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of active power filter of capacitor switching controlling functions, this device is in parallel with load-side bus, in order to the reactive power of compensating load side, described active power filter comprises active filtering unit and capacitor switching assembly, described active power filtering assembly is connected with capacitor switching assembly and load-side bus respectively, described capacitor switching assembly comprises the capacitor switching unit of multiple parallel connection, described capacitor switching unit is in parallel with load-side bus, each capacitor switching unit includes power switch and building-out capacitor, described power switch is connected with active power filtering assembly.
Described active power filtering assembly comprises the current transformer, ARM controller, pwm circuit and the current transformer that connect successively, and described current transformer is connected with load-side bus, and in order to detect the electric current of load-side, described current transformer is connected with load-side bus.
Described current transformer is active converter.
Described ARM controller is connected with power switch, in order to the switching of electric capacity in control capacitance switching unit.
Described active power filter is arranged on Standard type, be highly 4.5-5m, and outer cover is provided with explosion-proof casing.
Described ARM controller model is ARM10.
The compensation capacity of described each capacitor switching unit is 1 times or many times of the compensation capacity of active power filtering assembly.
Compared with prior art, the utility model has the following advantages:
One, take up an area little, reliable: this application of installation is in Standard type, floor space reduces greatly, solve the problems such as the anti-weather disaster in traditional outdoor compensation arrangement O&M, anti-outside destroy and heat radiation, can effectively economize the land resource, expand the development space of urban distribution network, improve power supply reliability.
Two, applied widely: pole compensation arrangement can be widely used in the ground such as business district, city, landscape region, residential quarter, alleviate the pressure that city distribution transformer is built, easy for installation, flexible configuration is changeable.
Three, series classification compensates: when idle consecutive variations in system, first automatically hierarchically reactive power compensation is carried out by capacitor switching assembly, then remainingly in system idlely to be compensated by active power filtering assembly, active power filtering assembly can realize idle quick bidirectional compensating, in capacitor switching assembly, the compensation capacity of capacitor switching unit is one times or many times of active power filtering assembly compensation capacity, so only needs to run simultaneously can carry out Continuous Compensation to reactive load compared with the active power filtering assembly of low capacity and capacitor switching assembly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1, nonlinear load, 2, current transformer, 3, ARM controller, 4, pwm circuit, 5, current transformer, 6, capacitor switching unit, 61, power switch, 62, building-out capacitor.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment:
As shown in Figure 1, a kind of active power filter of capacitor switching controlling functions, this device is in parallel with load-side bus, in order to the bus bar side reactive power of compensating non-linear load 1, active power filter comprises active filtering unit and capacitor switching assembly, active power filtering assembly is connected with capacitor switching assembly and load-side bus respectively, capacitor switching assembly comprises the capacitor switching unit 6 of multiple parallel connection, capacitor switching unit 6 is in parallel with load-side bus, each capacitor switching unit 6 includes power switch 61 and building-out capacitor 62, power switch 61 is connected with active power filtering assembly.
Active power filtering assembly comprises the current transformer 2, ARM controller 3, pwm circuit 4 and the current transformer 5 that connect successively, current transformer 2 is connected with load-side bus, in order to detect the electric current of load-side, current transformer 5 is connected with load-side bus, current transformer 5 is active converter, ARM controller 3 is connected with power switch 61, in order to the switching of electric capacity in control capacitance switching unit 6.
Active power filter is arranged on Standard type, be highly 4.5-5m, and outer cover is provided with explosion-proof casing, and ARM controller 3 model is ARM10, and the compensation capacity of each capacitor switching unit 6 is 1 times or many times of the compensation capacity of active power filtering assembly.
When idle consecutive variations in system, first the power network current collected by analyzing current transformer 2 by ARM controller 3, in control capacitance switching unit, the break-make of power switch 61 carries out hierarchically reactive power compensation, then remainingly in system idlely to be compensated by active power filtering assembly, active power filtering assembly can realize idle quick bidirectional compensating, in capacitor switching assembly, the compensation capacity of capacitor switching unit is one times of active power filtering assembly compensation capacity, so only need to run simultaneously can carry out Continuous Compensation to reactive load compared with the active power filtering assembly of low capacity and capacitor switching assembly, secondly active power filtering assembly can the harmonic current that produces of filtering load, make power network current only containing fundamental positive sequence synchronous with line voltage, can pollute by harmonic reduction on the one hand, simultaneously under the operating mode that Voltage Harmonic content is not high, the Financial cost of Capacitor banks can effectively be fallen, reduce device volume.
Claims (7)
1. the active power filter of a capacitor switching controlling functions, this device is in parallel with load-side bus, in order to the reactive power of compensating load side, it is characterized in that, described active power filter comprises active filtering unit and capacitor switching assembly, described active power filtering assembly is connected with capacitor switching assembly and load-side bus respectively, described capacitor switching assembly comprises the capacitor switching unit (6) of multiple parallel connection, described capacitor switching unit (6) is in parallel with load-side bus, each capacitor switching unit (6) includes power switch (61) and building-out capacitor (62), described power switch (61) is connected with active power filtering assembly.
2. the active power filter of a kind of capacitor switching controlling functions according to claim 1, it is characterized in that, described active power filtering assembly comprises the current transformer (2), ARM controller (3), pwm circuit (4) and the current transformer (5) that connect successively, described current transformer (2) is connected with load-side bus, in order to detect the electric current of load-side, described current transformer (5) is connected with load-side bus.
3. the active power filter of a kind of capacitor switching controlling functions according to claim 2, is characterized in that, described current transformer (5) is active converter.
4. the active power filter of a kind of capacitor switching controlling functions according to claim 2, it is characterized in that, described ARM controller (3) is connected with power switch (61), in order to the switching of electric capacity in control capacitance switching unit (6).
5. the active power filter of a kind of capacitor switching controlling functions according to claim 1, it is characterized in that, described active power filter is arranged on Standard type, be highly 4.5-5m, and outer cover is provided with explosion-proof casing.
6. the active power filter of a kind of capacitor switching controlling functions according to claim 2, is characterized in that, described ARM controller (3) model is ARM10.
7. the active power filter of a kind of capacitor switching controlling functions according to claim 1, is characterized in that, the compensation capacity of described each capacitor switching unit (6) is 1 times or many times of the compensation capacity of active power filtering assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520544627.3U CN205195269U (en) | 2015-07-24 | 2015-07-24 | Active power filter who holds switching control function with electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520544627.3U CN205195269U (en) | 2015-07-24 | 2015-07-24 | Active power filter who holds switching control function with electricity |
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| Publication Number | Publication Date |
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| CN205195269U true CN205195269U (en) | 2016-04-27 |
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| CN201520544627.3U Active CN205195269U (en) | 2015-07-24 | 2015-07-24 | Active power filter who holds switching control function with electricity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374486A (en) * | 2015-07-24 | 2017-02-01 | 利思电气（上海）有限公司 | Active power filtering device with capacitor switching control function |
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2015
- 2015-07-24 CN CN201520544627.3U patent/CN205195269U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374486A (en) * | 2015-07-24 | 2017-02-01 | 利思电气（上海）有限公司 | Active power filtering device with capacitor switching control function |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |