CN202084928U - Hybrid compensation filtering cabinet - Google Patents
Hybrid compensation filtering cabinet Download PDFInfo
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- CN202084928U CN202084928U CN2011201954841U CN201120195484U CN202084928U CN 202084928 U CN202084928 U CN 202084928U CN 2011201954841 U CN2011201954841 U CN 2011201954841U CN 201120195484 U CN201120195484 U CN 201120195484U CN 202084928 U CN202084928 U CN 202084928U
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- Prior art keywords
- compensation
- compensation device
- filtering
- filter reactive
- reactive power
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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
A hybrid compensation filtering cabinet belongs to the technical field of reactive power compensation equipment in power systems and comprises a cabinet body. A dynamic filtering inactive power compensation device and a static filtering inactive power compensation device are disposed inside the cabinet body, and each of the dynamic filtering inactive power compensation device and the dynamic filtering inactive power compensation device comprises a controller, a switch, a compensation capacitor set, a fuse and a circuit breaker. The hybrid compensation filtering cabinet is characterized in that a current transformer and a voltage transformer are further additionally arranged between an external three-phase power grid and the controller of the dynamic filtering inactive power compensation device, another current transformer and another voltage transformer are further additionally disposed between the external three-phase power grid and the static filtering inactive power compensation device, and an active power filter is further serially connected onto the compensation capacitor set of each of the dynamic filtering inactive power compensation device and the static filtering inactive power compensation device. The hybrid compensation filtering cabinet has the advantages that the hybrid compensation filtering cabinet can effectively eliminate harmonic waves in the power grid, enables the compensation devices to operate stably, excellently improves the quality of the power grid, and ensures safety of load.
Description
Technical field
The utility model relates to power system reactive power power back-off equipment technical field, especially relates to a kind of mixed compensation filtering cabinet that combines dynamic and static two kinds of reactive power compensation structures.
Background technology
Loadtype major part in the electric power system belongs to inductive load, adds generally electrification electronic equipment widely of electricity consumption enterprise, makes power factor of electric network lower.Lower power factor has reduced utilization rate of equipment and installations, has increased the power supply investment, has damaged quality of voltage, has reduced service life of equipment, has increased line loss greatly.In order to improve energy waste and these unfavorable power supply factors of production that power factor of electric network lowly brings, power factor of electric network is effectively improved.If obvious these reactive powers all will be provided and be transmitted at a distance by generator is irrational, also is impossible usually.Reasonable approach is exactly to produce reactive power in the place that needs reactive power, promptly increases reactive power compensating apparatus and device.
Yet because the application of modem semi-conductor devices is more and more general, power is also bigger, but its negative effect is exactly to produce very big non-sinusoidal current, and the harmonic voltage of electrical network is raise, and aberration rate increases, and grid supply quality degenerates.If bigger harmonic voltage is arranged in the supply line, especially more than 5 times, these harmonic waves will be amplified by compensation arrangement.Capacitor group and circuit series resonance increase voltage, current distortion rate on the circuit, very likely cause device damage, and compensation arrangement can not use in this case.
In view of the above problems, the utility model proposes a kind of mixed compensation filtering cabinet, can effectively eliminate the harmonic wave in the electrical network, make that compensation arrangement can steady operation, well improve power grid quality, guarantee payload security.
The utility model content
Technical problem to be solved in the utility model is, a kind of mixed compensation filtering cabinet is provided, and with the harmonic wave in effective elimination electrical network, makes that compensation arrangement can steady operation, well improves power grid quality, guarantees payload security.
Technical problem to be solved in the utility model realizes by the following technical solutions:
Mixed compensation filtering cabinet, comprise a cabinet, in described cabinet, be provided with a dynamic filter reactive power compensator and a static filter reactive compensation device, described dynamic filter reactive power compensator includes controller, fling-cut switch, the compensation condenser group, fuse and circuit breaker, extraneous three phase network and described controller join, described controller links to each other with described fling-cut switch, described fling-cut switch links to each other with described compensation condenser group, described circuit breaker is arranged between extraneous three phase network and the described controller, described fuse is arranged between described circuit breaker and the described controller, and described compensation condenser group is joined with extraneous three phase network and formed the reactive power compensation loop; Described static filter reactive compensation device includes controller, fling-cut switch, compensation condenser group, fuse and circuit breaker, extraneous three phase network and described controller join, described controller links to each other with described fling-cut switch, described fling-cut switch links to each other with described compensation condenser group, described circuit breaker is arranged between extraneous three phase network and the described controller, described fuse is arranged between described circuit breaker and the described controller, and described compensation condenser group is joined with extraneous three phase network and formed the reactive power compensation loop.
Also have additional current transformer and voltage transformer respectively and between the described controller of described dynamic filter reactive power compensator and described static filter reactive compensation device at extraneous three phase network, be used for dynamically sampling in real time the electric current and the magnitude of voltage of electrical network, and guarantee described controller secure.
On the described compensation condenser group of described dynamic filter reactive power compensator and described static filter reactive compensation device, also be connected in series an Active Power Filter-APF, be used to reduce harmonic wave harm.
The described fling-cut switch of described dynamic filter reactive power compensator is bidirectional thyristor or individual event anti-parallel thyristor, described thyristor can move at the switching that 10ms-20ms finishes in the time period all described compensation condenser groups under the triggering signal control that described controller sends.
Between the described controller of described dynamic filter reactive power compensator and described fling-cut switch, also be provided with the circuits for triggering plate, be used to realize that the pulse triggering signal that described controller is sent is more accurate.
Also be provided with voice coil motor between the described controller of described static filter reactive compensation device and described fling-cut switch, described voice coil motor is in order to control at the uniform velocity switching of described fling-cut switch.
The quantity of the described current transformer of described dynamic filter reactive power compensator and described static filter reactive compensation device is three, to satisfy the current sample needs that three-phase is mended altogether.
The described fuse of described dynamic filter reactive power compensator and described static filter reactive compensation device also is provided with alarm.
Described dynamic filter reactive power compensator and described static filter reactive compensation device are in parallel with extraneous three phase network.
The beneficial effects of the utility model are: effectively eliminate the harmonic wave in the electrical network, make that compensation arrangement can steady operation, well improve power grid quality, guarantee payload security, improved power grid quality greatly.
Description of drawings
Fig. 1 is the utility model: the operation principle block diagram of the dynamic filter reactive power compensator of mixed compensation filtering cabinet;
Fig. 2 is the utility model: the operation principle block diagram of the static filter reactive compensation device of mixed compensation filtering cabinet;
Fig. 3 is the utility model: the Facad structure schematic diagram the when front cabinet door of mixed compensation filtering cabinet is opened.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
With reference to Fig. 1-shown in Figure 3, mixed compensation filtering cabinet comprises cabinet 1, is provided with a dynamic filter reactive power compensator 40 and a static filter reactive compensation device 30 in cabinet 1, parts installing rack 2 removably is installed in cabinet 1, and installing rack 2 is divided into four layers from top to bottom at least.
The embodiment of dynamic filter reactive power compensator 40 is as follows, at the bottom of installing rack 2 compensation condenser group 3 is installed, and compensation condenser group 3 forms by a plurality of capacitors are parallel with one another.Radiator 4 is installed above compensation condenser group 3, on radiator 4, removably is fixed with a plurality of thyristors 5 and circuits for triggering version 6.Wherein, thyristor 5 is bidirectional thyristor or individual event anti-parallel thyristor, the anti-and thyristor of the preferred individual event of this implementation column.Thyristor 5 is corresponding being connected of capacitor in fling-cut switch and the compensation condenser group 3 of capacitor group 3 by way of compensation.Active Power Filter-APF 7 is installed above radiator 4, and Active Power Filter-APF 7 is connected in series by circuit and compensation condenser group 3, to eliminate the adverse effect of mains by harmonics.Fuse 8 also is installed above Active Power Filter-APF 7; on fuse 8, also be removably fixed with alarm 9; fuse 8 also is connected in series with compensation condenser group 3 by circuit; fuse 8 and alarm 9 can be implemented safer protection to each the reactive power compensation loop in the compensation condenser group 3.One circuit breaker 10 also is installed above fuse 8, three current transformers 11 and a voltage transformer 12 also are installed on circuit breaker 10, current transformer 11 and voltage transformer 12 detect sampling in order to electric current and the magnitude of voltage in the real-time electrical network to external world, and by controller 20 excessive current and voltage are changed, to guarantee the safety of follow-up equipment.
The embodiment of static filter reactive compensation device 30 is as follows, at the bottom of installing rack 2 compensation condenser group 3 ' is installed, and compensation condenser group 3 ' forms by a plurality of capacitors are parallel with one another.Top in compensation condenser group 3 ' is equipped with radiator 4 ', removably is fixed with a plurality of fling-cut switches 5 ' and voice coil motor 6 ' on radiator 4 '.Voice coil motor 6 ' is in order to control at the uniform velocity switching of fling-cut switch 5 '.Fling-cut switch 5 ' is corresponding being connected of capacitor in fling-cut switch and the compensation condenser group 3 ' of capacitor group 3 ' by way of compensation.In the top of radiator 4 ' Active Power Filter-APF 7 ' is installed, Active Power Filter-APF 7 ' is connected in series by circuit and compensation condenser group 3 ', to eliminate the adverse effect of mains by harmonics.Top at Active Power Filter-APF 7 ' also is equipped with fuse 8 '; on fuse 8 ', also be removably fixed with alarm 9 '; fuse 8 ' is connected in series with compensation condenser group 3 ' by circuit, and fuse 8 and alarm 9 can be implemented safer protection to each the reactive power compensation loop in the compensation condenser group 3 '.Top at fuse 8 ' also is equipped with a circuit breaker 10 ', three current transformers 11 ' and a voltage transformer 12 ' also are installed on circuit breaker 10 ', wherein, the end of incoming cables of circuit breaker 10 ' and extraneous three phase network join, the output of circuit breaker 10 ' and fuse 8 ' join, current transformer 11 ' and voltage transformer 12 ' detect sampling in order to electric current and the magnitude of voltage in the real-time electrical network to external world, and by controller 20 ' excessive current and voltage are changed, to guarantee the safety of follow-up equipment.
Before on cabinet 1, also being equipped with, Rear Door, wherein, before being divided into, goes up front door door-plate 13, door-plate 14 and preceding door-plate 15 down in preceding, on the door-plate 13 six ammeters 16 are installed on preceding, two voltmeters 17 and two power-factor indicators 18, and door lock 19, wherein, three ammeters 16 link to each other with a voltage transformer 12 with three current transformers 11 of corresponding static filter reactive compensation device 40 respectively by data circuit with a voltmeter 17, and other three ammeters 16 link to each other with a voltage transformer 12 ' with three current transformers 11 ' of corresponding static filter reactive compensation device 40 respectively by data circuit with a voltmeter 17.Controller 20, controller 20 ' and door lock 19 are installed on the door-plate in preceding, offer capacitor device group louvre 21 on the door-plate down, be convenient to heat radiation preceding.
The utility model is in parallel with extraneous electrical network by dynamic filter reactive power compensator and static filter reactive compensation device, can effectively eliminate the harmonic wave in the electrical network, make that compensation arrangement can steady operation, well improve power grid quality, guarantee payload security, improved power grid quality greatly.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. mixed compensation filtering cabinet, comprise a cabinet, in described cabinet, be provided with a dynamic filter reactive power compensator and a static filter reactive compensation device, described dynamic filter reactive power compensator and described static filter reactive compensation device all include controller, fling-cut switch, the compensation condenser group, fuse and circuit breaker, it is characterized in that: also have additional current transformer and voltage transformer respectively and between the described controller of described dynamic filter reactive power compensator and described static filter reactive compensation device at extraneous three phase network, on the described compensation condenser group of described dynamic filter reactive power compensator and described static filter reactive compensation device, also be connected in series an Active Power Filter-APF.
2. mixed compensation filtering cabinet according to claim 1 is characterized in that: the quantity of the described current transformer of described dynamic filter reactive power compensator and described static filter reactive compensation device is three.
3. mixed compensation filtering cabinet according to claim 1 is characterized in that: the described fuse of described dynamic filter reactive power compensator and described static filter reactive compensation device also is provided with alarm.
4. mixed compensation filtering cabinet according to claim 1 is characterized in that: the described fling-cut switch of described dynamic filter reactive power compensator is bidirectional thyristor or individual event anti-parallel thyristor.
5. mixed compensation filtering cabinet according to claim 1 is characterized in that: also be provided with the circuits for triggering plate between the described controller of described dynamic filter reactive power compensator and described fling-cut switch.
6. mixed compensation filtering cabinet according to claim 1 is characterized in that: also be provided with voice coil motor between the described controller of described static filter reactive compensation device and described fling-cut switch.
7. mixed compensation filtering cabinet according to claim 1 is characterized in that: described dynamic filter reactive power compensator and described static filter reactive compensation device are in parallel with extraneous three phase network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201954841U CN202084928U (en) | 2011-06-10 | 2011-06-10 | Hybrid compensation filtering cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201954841U CN202084928U (en) | 2011-06-10 | 2011-06-10 | Hybrid compensation filtering cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN202084928U true CN202084928U (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201954841U Expired - Fee Related CN202084928U (en) | 2011-06-10 | 2011-06-10 | Hybrid compensation filtering cabinet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457224A (en) * | 2013-09-06 | 2013-12-18 | 国家电网公司 | Electric transmission line inducted voltage restraint device based on impedance adjustment |
| CN105656059A (en) * | 2016-03-28 | 2016-06-08 | 国网山东省电力公司章丘市供电公司 | High-load-variation-rate low-voltage distribution network reactive power compensation cabinet |
| CN108551172A (en) * | 2018-04-20 | 2018-09-18 | 苏州中康电力开发有限公司 | Mixed compensation filter cabinet |
| CN112145467A (en) * | 2020-09-03 | 2020-12-29 | 山西晋城无烟煤矿业集团有限责任公司 | Controllable fan reactive compensation frequency conversion starting drive of output amount of wind |
-
2011
- 2011-06-10 CN CN2011201954841U patent/CN202084928U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457224A (en) * | 2013-09-06 | 2013-12-18 | 国家电网公司 | Electric transmission line inducted voltage restraint device based on impedance adjustment |
| CN103457224B (en) * | 2013-09-06 | 2016-01-20 | 国家电网公司 | A kind of transmission line induced voltage suppression device based on impedance adjustment |
| CN105656059A (en) * | 2016-03-28 | 2016-06-08 | 国网山东省电力公司章丘市供电公司 | High-load-variation-rate low-voltage distribution network reactive power compensation cabinet |
| CN108551172A (en) * | 2018-04-20 | 2018-09-18 | 苏州中康电力开发有限公司 | Mixed compensation filter cabinet |
| CN112145467A (en) * | 2020-09-03 | 2020-12-29 | 山西晋城无烟煤矿业集团有限责任公司 | Controllable fan reactive compensation frequency conversion starting drive of output amount of wind |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20170610 |