CN206076956U - Three-phase four-wire active filter cabinet - Google Patents
Three-phase four-wire active filter cabinet Download PDFInfo
- Publication number
- CN206076956U CN206076956U CN201621079961.7U CN201621079961U CN206076956U CN 206076956 U CN206076956 U CN 206076956U CN 201621079961 U CN201621079961 U CN 201621079961U CN 206076956 U CN206076956 U CN 206076956U
- Authority
- CN
- China
- Prior art keywords
- audion
- current transformer
- contactor
- current
- phase
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02E40/30—Reactive power compensation
-
- 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
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
This utility model discloses a kind of three-phase four-wire active filter cabinet；The technical problem of solution：For referring in background technology that electrical network has harmonic wave, harm problem is easily produced.Using technical scheme：Three-phase four-wire active filter cabinet, including control system, current transformer TA1, current transformer TA2, current transformer TA3, current transformer TA4, current transformer TA5, current transformer TA6, audion D1, audion D2, audion D3, audion D4, audion D5, audion D6, electric capacity C1, electric capacity C2, circuit breaker Q F1, circuit breaker Q F2, circuit breaker Q F3, normally closed A.C. contactor KM1, normally closed A.C. contactor KM2, normally closed A.C. contactor KM3, normally opened A.C. contactor KM4, normally opened A.C. contactor KM5, normally opened A.C. contactor KM6, current-limiting resistance R1, current-limiting resistance R2, current-limiting resistance R3, inductance L1, inductance L2 and inductance L3.
Description
Technical field
This utility model is related to a kind of three-phase four-wire active filter cabinet.
Background technology
When sine voltage is added on nonlinear load, load current has reformed into non-sinusoidal waveform, and non-sinusoidal waveform electric current exists
Pressure drop is produced on electric network impedance, makes voltage waveform also be changed into non-sinusoidal waveform.Fourier leaf-size class is carried out to periodic non-sine electricity
Number decomposes, and frequency is referred to as harmonic wave more than the component of fundamental frequency.
Power electronic equipment is applied more and more widely in industry and business, and these nonlinear-loads are in the production for giving people
While offering convenience with life, substantial amounts of harmonic wave can be produced and be injected in electrical network, cause electric current and voltage waveform distortion, electricity
Energy Quality Down, and electrical network and the miscellaneous equipment in electrical network are endangered, main harm has：1st, increase transformer loss, reduce transformation
Device rated capacity, shortens transformator service life；2nd, the active power in electrical network is consumed, power factor is reduced；3rd, increased
The loss of transmission line of electricity, shortens the life-span of transmission line of electricity；4th, considerably increase the possibility of system resonance, reactive power compensator without
Method switching；5th, servomotor produces pulsation, and alternating current generator produces vibration, noise increase；6th, some protection equipment misoperations are caused
Or tripping, such as relay protection, fuse etc..
Utility model content
Technical problem to be solved in the utility model is：For referring in background technology that electrical network has harmonic wave, easily produce
The problem of raw harm.
To solve above-mentioned technical problem, the concrete technical scheme that this utility model is adopted is：
A kind of three-phase four-wire active filter cabinet, including control system, current transformer TA1, current transformer TA2, electric current
Transformer TA3, current transformer TA4, current transformer TA5, current transformer TA6, audion D1, audion D2, audion
D3, audion D4, audion D5, audion D6, electric capacity C1, electric capacity C2, circuit breaker Q F1, circuit breaker Q F2, circuit breaker Q F3, often
Close A.C. contactor KM1, normally closed A.C. contactor KM2, normally closed A.C. contactor KM3, normally opened A.C. contactor KM4, normally opened friendship
Stream catalyst KM5, normally opened A.C. contactor KM6, current-limiting resistance R1, current-limiting resistance R2, current-limiting resistance R3, inductance L1, inductance L2
With inductance L3；
The A phases transmission line of three phase mains connects input one end of current transformer TA6 by the connected wiring of A, is being located at
Being sequentially connected in series setting circuit breaker Q F1, normally closed A.C. contactor KM1, normally opened exchanging between three phase mains and current transformer TA6
Catalyst KM4 and inductance L1, normally opened A.C. contactor KM4 are arranged in parallel current-limiting resistance R1；The input of current transformer TA6 is another
One end emitter stage respectively with audion D5, audion D6 colelctor electrodes are connected；
The B phases transmission line of three phase mains connects input one end of current transformer TA5 by the connected wiring of B, is being located at
Being sequentially connected in series setting circuit breaker Q F2, normally closed A.C. contactor KM2, normally opened exchanging between three phase mains and current transformer TA5
Catalyst KM5 and inductance L2, normally opened A.C. contactor KM5 are arranged in parallel current-limiting resistance R2；The input of current transformer TA5 is another
One end emitter stage respectively with audion D3, audion D4 colelctor electrodes are connected；
The C phases transmission line of three phase mains connects input one end of current transformer TA4 by the connected wiring of B, is being located at
Being sequentially connected in series setting circuit breaker Q F3, normally closed A.C. contactor KM3, normally opened exchanging between three phase mains and current transformer TA4
Catalyst KM6 and inductance L3, normally opened A.C. contactor KM6 are arranged in parallel current-limiting resistance R3；The input of current transformer TA6 is another
One end emitter stage respectively with audion D1, audion D2 colelctor electrodes are connected；
One end of electric capacity C1 respectively with audion D1 colelctor electrodes, audion D3 colelctor electrodes and audion D5 colelctor electrode phases
Even, the other end connects one end of electric capacity C2 and connects load-side；The other end of electric capacity C2 respectively with audion D2 emitter stages, three poles
Pipe D4 emitter stages and audion D6 emitter stages are connected；
The input of current transformer TA1 is connected on A phase loads side, and the input of current transformer TA2 is connected on B phases and bears
Side is carried, the input of current transformer TA3 is connected on C phase loads side；
Current transformer TA1, current transformer TA2, current transformer TA3, current transformer TA4, current transformer TA5
The outfan of summation current transformer TA6 is all connected with control system.
Three-phase four-wire active filter cabinet of the present utility model, by inductance L1, L2 and L3 good wave filtering effect；And by normally closed
When A.C. contactor and normally opened A.C. contactor are effectively guaranteed system malfunctions, timely can protect.
Control system described in technical solutions of the utility model is normal in active power filtering cabinet to be applied in prior art
Control system is advised, therefore this utility model is not described in detail.
Improvement to technical solutions of the utility model, audion D1 emitter stages connection diode anode, diode cathode connect
Connect audion D1 colelctor electrodes, audion D2 emitter stages connection diode anode, diode cathode connecting triode D2 colelctor electrodes, three
Pole pipe D3 emitter stage connection diode anode, diode cathode connecting triode D3 colelctor electrodes, audion D4 emitter stages connection two
Pole pipe anode, diode cathode connecting triode D4 colelctor electrodes, audion D5 emitter stages connection diode anode, diode cathode
Connecting triode D5 colelctor electrodes, audion D6 emitter stages connection diode anode, diode cathode connecting triode D6 colelctor electrodes.
The course of work of this active power filtering cabinet：
Upper circuit breaker Q F1, QF2 and QF3 are first closed, normally closed A.C. contactor KM1, KM2 and KM3, power network current is closed again
By the afterflow two in current-limiting resistance R1, R2 and R3, filter inductance L1, L2 and L3 and audion D1, D2, D3, D4, D5 and D6
Pole pipe charges to dc-link capacitance C1, C2.After DC bus-bar voltage reaches certain value, control system sends control letter
Number, normally opened A.C. contactor KM4, KM5 and KM6 closure is controlled, then soft start is raised to rated voltage, into normal work shape
State.When system malfunctions are protected, normally closed A.C. contactor KM1, KM2 and KM3 disconnect, to protect main electricity in active power filtering cabinet
Road is without prejudice.
Compared with prior art, its advantage is this utility model：
1) three-phase four-wire active filter cabinet of the present utility model, by inductance L1, L2 and L3 good wave filtering effect.
2) three-phase four-wire active filter cabinet of the present utility model, has by normally closed A.C. contactor and normally opened A.C. contactor
When ensure that system malfunctions to effect, can timely protect main circuit in active power filtering cabinet without prejudice.
3) three-phase four-wire active filter cabinet of the present utility model, good wave filtering effect, substantially reduce the noise of filter cabinet.
Description of the drawings
Fig. 1 is circuit interconnect pattern of the present utility model.
Specific embodiment
Below technical solutions of the utility model are described in detail, but protection domain of the present utility model is not limited to
The embodiment.
It is understandable to become apparent from content of the present utility model, do further below in conjunction with accompanying drawing 1 and specific embodiment
Description.
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit this utility model.
Embodiment：
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine.Below with reference to the accompanying drawings and in conjunction with the embodiments describing this utility model in detail.
As shown in figure 1, this three-phase four-wire active filter cabinet, including control system, current transformer TA1, current transformer
TA2, current transformer TA3, current transformer TA4, current transformer TA5, current transformer TA6, audion D1, audion
D2, audion D3, audion D4, audion D5, audion D6, electric capacity C1, electric capacity C2, circuit breaker Q F1, circuit breaker Q F2, open circuit
Device QF3, normally closed A.C. contactor KM1, normally closed A.C. contactor KM2, normally closed A.C. contactor KM3, normally opened A.C. contactor
KM4, normally opened A.C. contactor KM5, normally opened A.C. contactor KM6, current-limiting resistance R1, current-limiting resistance R2, current-limiting resistance R3, inductance
L1, inductance L2 and inductance L3.
The A phases transmission line of three phase mains connects input one end of current transformer TA6 by the connected wiring of A, is being located at
Being sequentially connected in series setting circuit breaker Q F1, normally closed A.C. contactor KM1, normally opened exchanging between three phase mains and current transformer TA6
Catalyst KM4 and inductance L1, normally opened A.C. contactor KM4 are arranged in parallel current-limiting resistance R1；The input of current transformer TA6 is another
One end emitter stage respectively with audion D5, audion D6 colelctor electrodes are connected.The B phase transmission lines of three phase mains are connected by B
Line connects input one end of current transformer TA5, is setting positioned at being sequentially connected in series between three phase mains and current transformer TA5
Circuit breaker Q F2, normally closed A.C. contactor KM2, normally opened A.C. contactor KM5 and inductance L2 are put, normally opened A.C. contactor KM5 is in parallel
Current-limiting resistance R2 is set；The input other end of current transformer TA5 emitter stage respectively with audion D3, audion D4 current collections
Extremely it is connected.The C phases transmission line of three phase mains connects input one end of current transformer TA4 by the connected wiring of B, is being located at three
Being sequentially connected in series setting circuit breaker Q F3, normally closed A.C. contactor KM3, normally opened exchange between phase power supply and current transformer TA4 connects
Tentaculum KM6 and inductance L3, normally opened A.C. contactor KM6 are arranged in parallel current-limiting resistance R3；The input of current transformer TA6 is another
End emitter stage respectively with audion D1, audion D2 colelctor electrodes are connected.One end of electric capacity C1 respectively with audion D1 colelctor electrodes,
Audion D3 colelctor electrodes and audion D5 colelctor electrodes are connected, and one end of other end connection electric capacity C2 simultaneously connects load-side；Electric capacity
The other end of C2 is connected with audion D2 emitter stages, audion D4 emitter stages and audion D6 emitter stages respectively.Current Mutual Inductance
The input of device TA1 is connected on A phase loads side, and the input of current transformer TA2 is connected on B phase loads side, current transformer
The input of TA3 is connected on C phase loads side.Current transformer TA1, current transformer TA2, current transformer TA3, Current Mutual Inductance
Device TA4, the outfan of current transformer TA5 summation current transformer TA6 are all connected with control system.
Audion D1 emitter stages connection diode anode, diode cathode connecting triode D1 colelctor electrodes, audion D2 are sent out
Emitter-base bandgap grading connection diode anode, diode cathode connecting triode D2 colelctor electrodes, audion D3 emitter stages connection diode anode,
Diode cathode connecting triode D3 colelctor electrodes, audion D4 emitter stages connection diode anode, diode cathode connect three poles
Pipe D4 colelctor electrodes, audion D5 emitter stages connection diode anode, diode cathode connecting triode D5 colelctor electrodes, audion D6
Emitter stage connection diode anode, diode cathode connecting triode D6 colelctor electrodes.
This utility model is not directed to partly same as the prior art or can be realized using prior art.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this
For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. are should be included within protection domain of the present utility model.
Claims (2)
1. a kind of three-phase four-wire active filter cabinet, it is characterised in that including control system, current transformer TA1, current transformer
TA2, current transformer TA3, current transformer TA4, current transformer TA5, current transformer TA6, audion D1, audion
D2, audion D3, audion D4, audion D5, audion D6, electric capacity C1, electric capacity C2, circuit breaker Q F1, circuit breaker Q F2, open circuit
Device QF3, normally closed A.C. contactor KM1, normally closed A.C. contactor KM2, normally closed A.C. contactor KM3, normally opened A.C. contactor
KM4, normally opened A.C. contactor KM5, normally opened A.C. contactor KM6, current-limiting resistance R1, current-limiting resistance R2, current-limiting resistance R3, inductance
L1, inductance L2 and inductance L3；
The A phases transmission line of three phase mains connects input one end of current transformer TA6 by the connected wiring of A, positioned at three-phase
Being sequentially connected in series between power supply and current transformer TA6 arranges circuit breaker Q F1, normally closed A.C. contactor KM1, normally opened ac contactor
Device KM4 and inductance L1, normally opened A.C. contactor KM4 are arranged in parallel current-limiting resistance R1；The input other end of current transformer TA6
Emitter stage respectively with audion D5, audion D6 colelctor electrodes are connected；
The B phases transmission line of three phase mains connects input one end of current transformer TA5 by the connected wiring of B, positioned at three-phase
Being sequentially connected in series between power supply and current transformer TA5 arranges circuit breaker Q F2, normally closed A.C. contactor KM2, normally opened ac contactor
Device KM5 and inductance L2, normally opened A.C. contactor KM5 are arranged in parallel current-limiting resistance R2；The input other end of current transformer TA5
Emitter stage respectively with audion D3, audion D4 colelctor electrodes are connected；
The C phases transmission line of three phase mains connects input one end of current transformer TA4 by the connected wiring of B, positioned at three-phase
Being sequentially connected in series between power supply and current transformer TA4 arranges circuit breaker Q F3, normally closed A.C. contactor KM3, normally opened ac contactor
Device KM6 and inductance L3, normally opened A.C. contactor KM6 are arranged in parallel current-limiting resistance R3；The input other end of current transformer TA6
Emitter stage respectively with audion D1, audion D2 colelctor electrodes are connected；
One end of electric capacity C1 is connected with audion D1 colelctor electrodes, audion D3 colelctor electrodes and audion D5 colelctor electrodes respectively, separately
One end of one end connection electric capacity C2 simultaneously connects load-side；The other end of electric capacity C2 respectively with audion D2 emitter stages, audion D4
Emitter stage and audion D6 emitter stages are connected；
The input of current transformer TA1 is connected on A phase loads side, and the input of current transformer TA2 is connected on B phase loads
Side, the input of current transformer TA3 are connected on C phase loads side；
Current transformer TA1, current transformer TA2, current transformer TA3, current transformer TA4, current transformer TA5 and electricity
The outfan of current transformer TA6 is all connected with control system.
2. three-phase four-wire active filter cabinet as claimed in claim 1, it is characterised in that audion D1 emitter stages connect diode
Anode, diode cathode connecting triode D1 colelctor electrodes, audion D2 emitter stages connection diode anode, diode cathode connection
Audion D2 colelctor electrodes, audion D3 emitter stages connection diode anode, diode cathode connecting triode D3 colelctor electrodes, three poles
Pipe D4 emitter stages connection diode anode, diode cathode connecting triode D4 colelctor electrodes, audion D5 emitter stages connect two poles
Tube anode, diode cathode connecting triode D5 colelctor electrodes, audion D6 emitter stages connection diode anode, diode cathode connect
Connect audion D6 colelctor electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079961.7U CN206076956U (en) | 2016-09-23 | 2016-09-23 | Three-phase four-wire active filter cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079961.7U CN206076956U (en) | 2016-09-23 | 2016-09-23 | Three-phase four-wire active filter cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206076956U true CN206076956U (en) | 2017-04-05 |
Family
ID=58440809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621079961.7U Expired - Fee Related CN206076956U (en) | 2016-09-23 | 2016-09-23 | Three-phase four-wire active filter cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206076956U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318730A (en) * | 2018-03-30 | 2018-07-24 | 成都众宜天成科技有限公司 | A kind of communication power supply voltage detecting circuit |
| CN114498318A (en) * | 2022-02-28 | 2022-05-13 | 英奈科(北京)智能系统有限公司 | Low-voltage switch incoming line cabinet based on Internet of things |
-
2016
- 2016-09-23 CN CN201621079961.7U patent/CN206076956U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318730A (en) * | 2018-03-30 | 2018-07-24 | 成都众宜天成科技有限公司 | A kind of communication power supply voltage detecting circuit |
| CN114498318A (en) * | 2022-02-28 | 2022-05-13 | 英奈科(北京)智能系统有限公司 | Low-voltage switch incoming line cabinet based on Internet of things |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Corasaniti et al. | Hybrid active filter for reactive and harmonics compensation in a distribution network | |
| Satyanarayana et al. | A critical evaluation of power quality features using Hybrid Multi-Filter Conditioner topology | |
| CN105207208B (en) | Realize power flowcontrol and the circuit of small current grounding fault active compensation extinguishing arc simultaneously | |
| CN106026154B (en) | The modeling method of extra-high voltage direct-current layer-specific access transmission system | |
| CN108859872A (en) | A kind of virtual perforation alternating current traction power supply system | |
| CN105119262B (en) | Realize that power quality adjusts the circuit with the active extinguishing arc of small current grounding fault simultaneously | |
| CN105470963B (en) | A kind of Active Power Filter-APF and its control method | |
| CN106787861A (en) | Modular multilevel full-bridge mode of resonance electric power electric transformer topology | |
| CN206076956U (en) | Three-phase four-wire active filter cabinet | |
| CN105048825B (en) | Super high power cascaded high-voltage frequency converter and its method for inhibiting surge | |
| CN206908254U (en) | Intensive deicing device constant current, constant pressure modularization dynamic passive compensation part | |
| CN102638047A (en) | Three-phase unified power quality control device with bypass switches | |
| CN104408219A (en) | Direct current power transmission engineering fault circuit automatic generating method | |
| CN106856373A (en) | A kind of harmonic wave generation device | |
| CN205565742U (en) | Mixed electric power equalizer that passive zero sequence filtering technique and active filtering technique combine | |
| CN201758287U (en) | Low-voltage active power filter | |
| CN201466724U (en) | Intelligent single-phase power saving protective controller | |
| CN106786657A (en) | For the Power Quality Comprehensive Treatment Device of power distribution network | |
| CN207939209U (en) | The energy router of power quality harnessed synthetically and power optimization | |
| CN205986164U (en) | Balanced compensation arrangement of intelligence | |
| CN201805228U (en) | Special low-voltage active power filter for tobacco industry | |
| CN202026091U (en) | Nonresonant zero-sequence filtering device based on magnetic flux compensation | |
| CN108258697A (en) | The energy router of power quality harnessed synthetically and power optimization | |
| CN210327036U (en) | Alternating current-direct current power supply system with power supply end capable of being grounded | |
| Zhang et al. | HVDC converter transformer saturation in hybrid AC/DC system caused by coupled transmission lines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Qi Inventor after: Wang Bijue Inventor before: Lin Qi |
|
| 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: 20170405 Termination date: 20190923 |