CN108667023A - A kind of high efficiency active electric-power filter - Google Patents

A kind of high efficiency active electric-power filter Download PDF

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Publication number
CN108667023A
CN108667023A CN201810476434.7A CN201810476434A CN108667023A CN 108667023 A CN108667023 A CN 108667023A CN 201810476434 A CN201810476434 A CN 201810476434A CN 108667023 A CN108667023 A CN 108667023A
Authority
CN
China
Prior art keywords
igbt
outer housing
fin
node
face
Prior art date
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.)
Pending
Application number
CN201810476434.7A
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Chinese (zh)
Inventor
余志光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU ELIER ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
JIANGSU ELIER ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGSU ELIER ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd filed Critical JIANGSU ELIER ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201810476434.7A priority Critical patent/CN108667023A/en
Publication of CN108667023A publication Critical patent/CN108667023A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/01—Arrangements for reducing harmonics or ripples
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
    • H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
    • H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
    • H02J3/1857—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters wherein such bridge converter is a multilevel converter
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
    • H05K7/20918—Forced ventilation, e.g. on heat dissipaters coupled to components the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inverter Devices (AREA)

Abstract

The invention discloses a kind of high efficiency active electric-power filters, including outer housing, outer housing intracavity bottom is equipped with cooling fin, outer housing front end face and side are equipped with thermovent, outer housing front end face is additionally provided with display screen, control button is equipped with below display screen, knob is also fixedly mounted in outer housing front end face both sides, air outlet is equipped with below outer housing rear end face, external CT thief hatch is equipped with above outer housing rear end face, grounding ports, alternating current input port, shell intracoelomic cavity is equipped with controller, IGBT drive module, reactive compensation module and cooling fan, structure of the invention principle is simple, with good heat dissipation effect, in addition, also there is excellent reactive-load compensation performance, power factor can be improved, overcome three-phase imbalance, eliminate voltage flicker and voltage fluctuation.

Description

A kind of high efficiency active electric-power filter
Technical field
The present invention relates to electric-power filter technical field, specially a kind of high efficiency active electric-power filter.
Background technology
Active Power Filter-APF is a kind of for dynamic harmonic wave, the novel electric power electric device of compensating reactive power, its energy Enough harmonic waves to different size and frequency carry out quick tracing compensation, why referred to as active, be relative to passive LC filter, Can only for the harmonic wave of Passive intake fixed frequency and size, APF can by sample load current and carry out each harmonic and Idle separation controls size, frequency and the phase of simultaneously active output current, and quick response, offsets corresponding electricity in load Stream, realizes dynamic tracing compensation, and can not only mend harmonic wave but also mend idle and uneven.
Current Active Power Filter-APF heat dissipation performance difference and reactive-load compensation effect is poor, therefore, is further improved.
Invention content
The purpose of the present invention is to provide a kind of high efficiency active electric-power filters, to solve to propose in above-mentioned background technology The problem of.
To achieve the above object, the present invention provides the following technical solutions：A kind of high efficiency active electric-power filter, including it is outer Shell, the outer housing intracavity bottom are equipped with cooling fin, and the outer housing front end face and side are equipped with thermovent, the shell Body front end face is additionally provided with display screen, and control button, the also fixed peace in outer housing front end face both sides are equipped with below the display screen Dress knob, the outer housing rear end face lower section are equipped with air outlet, and external CT thief hatch is equipped with above the outer housing rear end face, is connect Ground port, alternating current input port, the alternating current input port include that alternating current A phases input terminal, alternating current B phases input terminal, alternating current C phases input End, center line input terminal, the shell intracoelomic cavity are equipped with controller, IGBT drive module, reactive compensation module and cooling fan, The cooling fan is mounted on the inside of air outlet, and the controller connects reactive compensation module by IGBT drive module, described Controller is separately connected power supply and cooling fan.
Preferably, the reactive compensation module includes three groups of IGBT groups being connected in parallel, inductance A, inductance B, inductance C, and three Group IGBT groups include the first IGBT groups, the 2nd IGBT groups and the 3rd IGBT groups, and the first IGBT groups include being connected in series with Between the intermediate node and IGBT C and IGBT D of IGBT A, IGBT B, IGBT C, IGBT D, the IGBT A and IGBT B Concatenated diode A, diode B are connected between node；The 2nd IGBT groups include be connected in series with IGBT E, IGBT F, IGBT G、IGBT H；It is connected between node between node between the IGBT E and IGBT F and IGBT G and IGBT H Diode C, the diode D being connected in series with；The 3rd IGBT groups include be connected in series with IGBT I, IGBT J, IGBT K, IGBT L；It is connected in series between node between node between the IGBT I and IGBT J and IGBT K and IGBT L Diode E, diode F；IGBT groups both ends are also connected in parallel capacitance A and capacitance B after series connection；The inductance A mono- is terminated Node between IGBT B and IGBT C, the other end get access to grid A phase power supplys；The inductance B mono- terminate IGBT F and IGBT G it Between node, the other end gets access to grid B phase power supplys；The inductance C mono- terminates the node between IGBT J and IGBT K, another termination Power grid C phase power supplys, the power grid are also connected with unbalanced load.
Preferably, the cooling fin includes ontology and multiple heat transmission fins, and the heat transmission fin has fin bottom end and wing Piece top, the fin bottom end be located at ontology front and with described body by integral forming, longitudinal multiple adjacent fins There is groove between bottom end, be disposed with groove between lateral multiple adjacent grooves, the heat transmission fin is led including first Hot fin, the second heat transmission fin and third heat transmission fin are simultaneously transversely arranged successively, it is transversely arranged after first heat transmission fin, Second heat transmission fin and third heat transmission fin are arranged in order to form square formation along longitudinal direction；The cooling fin is bolted on shell Body bottom wall.
Compared with prior art, the beneficial effects of the invention are as follows：Structure of the invention principle is simple, and the cooling fin of use passes through Multiple heat transmission fins are integrally formed installation on the body, heat passes to heat transmission fin by ontology, can improve heat dissipation effect Fruit；In addition, the reactive compensation module that uses of the present invention also has excellent reactive-load compensation performance, can improve power factor, gram It takes three-phase imbalance, eliminate voltage flicker and voltage fluctuation, load and the electricity at public electric wire net tie point can be significantly improved It can quality.
Description of the drawings
Fig. 1 is front view of the present invention；
Fig. 2 is rearview of the present invention；
Fig. 3 is control principle drawing of the present invention；
Fig. 4 is heat sink structure illustration of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of high efficiency active electric-power filter, including shell Body 1,1 intracavity bottom of the outer housing are equipped with cooling fin 2, and 1 front end face of the outer housing and side are equipped with thermovent 3, described 1 front end face of outer housing is additionally provided with display screen 4, and 4 lower section of the display screen is equipped with control button 5,1 front end face both sides of the outer housing Knob 6 is also fixedly mounted, air outlet 7 is equipped with below 1 rear end face of the outer housing, is equipped with above 1 rear end face of the outer housing outer Portion's CT thief hatch 8, grounding ports 9, alternating current input port, the alternating current input port include that alternating current A phases input terminal 10, alternating current B phases are defeated Enter end 11, alternating current C phases input terminal 12, center line input terminal 13,1 inner cavity of the outer housing is equipped with controller 14, IGBT drive module 15, reactive compensation module 16 and cooling fan 17, the cooling fan 17 are mounted on 7 inside of air outlet, the controller 14 Reactive compensation module 16 is connected by IGBT drive module 15, the controller 14 is separately connected power supply 20 and cooling fan 17.
In the present invention, reactive compensation module 16 includes three groups of the IGBT groups being connected in parallel, inductance A1a, inductance B2a, inductance C3a, three groups of IGBT groups include the first IGBT groups, the 2nd IGBT groups and the 3rd IGBT groups, and the first IGBT groups include that series connection connects IGBT A1b, IGBT B2b, IGBT C3b, the IGBT D4b connect, the intermediate node and IGBT of the IGBT A1b and IGBT B2b Concatenated diode A1c, diode B2c are connected between node between C3b and IGBT D4b；The 2nd IGBT groups include string Join IGBT E5b, IGBT F6b, IGBT G7b, the IGBT H8b of connection；Node between the IGBT E5b and IGBT F6b Diode C3c, the diode D4c being connected in series between node between IGBT G7b and IGBT H8b；The third IGBT groups include IGBT I9b, IGBT J10b, IGBT K11b, the IGBT L12b being connected in series with；The IGBT I9b and IGBT The diode E5c that is connected in series between node between node between J10b and IGBT K11b and IGBT L12b, two Pole pipe F6c；IGBT groups both ends are also connected in parallel capacitance A1d and capacitance B2d after series connection；The inductance A1a mono- terminates IGBT Node between B2b and IGBT C3b, the other end get access to grid 18 A phase power supplys；The inductance B2a mono- terminate IGBT F6b and Node between IGBT G7b, the other end get access to grid 18 B phase power supplys；The inductance C3a mono- terminates IGBT J10b and IGBT Node between K11b, the other end get access to grid 18 C phase power supplys, and the power grid 18 is also connected with unbalanced load 19.Pass through external electricity Current transformer real-time detecting system electric current, and system power information is sent to internal processor and carries out analyzing processing, calculate system System out-of-balance current, while the current value converted needed for each phase when reaching equilibrium state is calculated, then command signal is sent To internal current transformer and its action is driven, output is evenly distributed on three-phase line, three-phrase burden balance state is finally reached. The reactive compensation module that the present invention uses also has excellent reactive-load compensation performance, can improve power factor, overcome three-phase not Balance eliminates voltage flicker and voltage fluctuation, can significantly improve load and the power quality at public electric wire net tie point.
In the present invention, cooling fin 2 includes ontology 20 and multiple heat transmission fins, and the heat transmission fin has fin bottom end and wing Piece top, the fin bottom end be located at the front of the ontology 20 and with described body by integral forming, longitudinal multiple adjacent wings There is groove 21 between piece bottom end, be disposed with groove between lateral multiple adjacent grooves 21, the heat transmission fin includes First heat transmission fin 22, the second heat transmission fin 23 and third heat transmission fin 24 are simultaneously transversely arranged successively, it is transversely arranged after it is described First heat transmission fin 22, the second heat transmission fin 23 and third heat transmission fin 24 are arranged in order to form square formation along longitudinal direction；The heat dissipation Piece 2 is bolted on 1 bottom wall of outer housing.The cooling fin that the present invention uses is installed by being integrally formed multiple heat transmission fins On the body, heat passes to heat transmission fin by ontology, can improve heat dissipation effect.
In conclusion structure of the invention principle is simple, there is good heat dissipation effect, in addition, also having excellent idle Compensation performance can improve power factor, overcome three-phase imbalance, eliminate voltage flicker and voltage fluctuation.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (3)

1. a kind of high efficiency active electric-power filter, including outer housing（1）, it is characterised in that：The outer housing（1）Intracavity bottom Equipped with cooling fin（2）, the outer housing（1）Front end face and side are equipped with thermovent（3）, the outer housing（1）Front end face is also Equipped with display screen（4）, the display screen（4）Lower section is equipped with control button（5）, the outer housing（1）Front end face both sides are also fixed Installation knob（6）, the outer housing（1）Air outlet is equipped with below rear end face（7）, the outer housing（1）It is equipped with above rear end face External CT thief hatch（8）, grounding ports（9）, alternating current input port, the alternating current input port includes alternating current A phase input terminals（10）, city Electric B phases input terminal（11）, alternating current C phase input terminals（12）, center line input terminal（13）, the outer housing（1）Inner cavity is equipped with controller （14）, IGBT drive module（15）, reactive compensation module（16）And cooling fan（17）, the cooling fan（17）It is mounted on Air outlet（7）Inside, the controller（14）Pass through IGBT drive module（15）Connect reactive compensation module（16）, the control Device（14）It is separately connected power supply（20）And cooling fan（17）.
2. a kind of high efficiency active electric-power filter according to claim 1, it is characterised in that：The reactive compensation module （16）Including three groups of IGBT groups being connected in parallel, inductance A (1a), inductance B (2a), inductance C (3a), three groups of IGBT groups include first IGBT groups, the 2nd IGBT groups and the 3rd IGBT groups, the first IGBT groups include IGBT A (1b), the IGBT B being connected in series with The intermediate node of (2b), IGBT C (3b), IGBT D (4b), the IGBT A (1b) and IGBT B (2b) and IGBT C (3b) and Concatenated diode A (1c), diode B (2c) are connected between node between IGBT D (4b)；The 2nd IGBT groups include IGBT E (5b), IGBT F (6b), IGBT G (7b), the IGBT H (8b) being connected in series with；The IGBT E (5b) and IGBT F The diode C being connected in series between node between node between (6b) and IGBT G (7b) and IGBT H (8b) (3c), diode D (4c)；The 3rd IGBT groups include IGBT I (9b), IGBT J (10b), the IGBT K being connected in series with (11b)、IGBT L(12b)；Node between the IGBT I (9b) and IGBT J (10b) and IGBT K (11b) and IGBT L Diode E (5c), the diode F (6c) being connected in series between node between (12b)；IGBT groups both ends are also connected in parallel Capacitance A (1d) after series connection and capacitance B (2d)；The inductance A (1a) one terminates between IGBT B (2b) and IGBT C (3b) Node, the other end get access to grid (18) A phase power supplys；The inductance B (2a) one terminates between IGBT F (6b) and IGBT G (7b) Node, the other end get access to grid (18) B phase power supplys；The inductance C (3a) one terminates between IGBT J (10b) and IGBT K (11b) Node, the other end gets access to grid (18) C phase power supplys, and the power grid (18) is also connected with unbalanced load (19).
3. a kind of high efficiency active electric-power filter according to claim 1, it is characterised in that：The cooling fin（2）Packet Include ontology（20）With multiple heat transmission fins, the heat transmission fin has fin bottom end and fin heads, and the fin bottom end is located at The ontology（20）Front and with described body by integral forming, there is groove between longitudinal multiple adjacent fin bottom ends （21）, lateral multiple adjacent grooves（21）Between be disposed with groove, the heat transmission fin includes the first heat transmission fin （22）, the second heat transmission fin（23）With third heat transmission fin（24）And it is transversely arranged successively, it is transversely arranged after described first lead Hot fin（22）, the second heat transmission fin（23）With third heat transmission fin（24）It is arranged in order to form square formation along longitudinal direction；The heat dissipation Piece（2）It is bolted on outer housing（1）Bottom wall.
CN201810476434.7A 2018-05-18 2018-05-18 A kind of high efficiency active electric-power filter Pending CN108667023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810476434.7A CN108667023A (en) 2018-05-18 2018-05-18 A kind of high efficiency active electric-power filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810476434.7A CN108667023A (en) 2018-05-18 2018-05-18 A kind of high efficiency active electric-power filter

Publications (1)

Publication Number Publication Date
CN108667023A true CN108667023A (en) 2018-10-16

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Country Status (1)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203871860U (en) * 2014-04-22 2014-10-08 张巍 Active electric energy quality comprehensive adjusting device
CN105377004A (en) * 2015-12-10 2016-03-02 重庆航墙电子科技有限公司 Heat sink
CN106961105A (en) * 2017-05-10 2017-07-18 重庆大全泰来电气有限公司 A kind of power quality controlling device
CN206412776U (en) * 2017-01-18 2017-08-15 艾恩格电气（珠海）有限公司 A kind of drawer type quality of power supply apparatus for correcting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203871860U (en) * 2014-04-22 2014-10-08 张巍 Active electric energy quality comprehensive adjusting device
CN105377004A (en) * 2015-12-10 2016-03-02 重庆航墙电子科技有限公司 Heat sink
CN206412776U (en) * 2017-01-18 2017-08-15 艾恩格电气（珠海）有限公司 A kind of drawer type quality of power supply apparatus for correcting
CN106961105A (en) * 2017-05-10 2017-07-18 重庆大全泰来电气有限公司 A kind of power quality controlling device

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Application publication date: 20181016