CN106787049A - One kind has power factor harmonic factor correcting function IGBT chargers - Google Patents
One kind has power factor harmonic factor correcting function IGBT chargers Download PDFInfo
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- CN106787049A CN106787049A CN201710008864.1A CN201710008864A CN106787049A CN 106787049 A CN106787049 A CN 106787049A CN 201710008864 A CN201710008864 A CN 201710008864A CN 106787049 A CN106787049 A CN 106787049A
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- 230000005611 electricity Effects 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Classifications
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- H02J7/022—
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- 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
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- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The present invention relates to a kind of IGBT chargers for possessing power factor harmonic factor active correction function, including hardware configuration and control algolithm, hardware configuration includes three-phase alternating current input system, three-phase input reactor, IGBT three-phase inversions full-bridge, dc-link capacitance, output system；The three-phase alternating current input system connects the three-phase input reactor input, and the three-phase input reactor output end connects the IGBT three-phase inversions full-bridge ac output end, and the IGBT three-phase inversions full-bridge direct current output end connects dc-link capacitance.The present invention uses Sine Wave Pulse Width Modulation (i.e. SPWM) control mode, therefore input AC electric current is sine-wave current, and harmonic current is effectively drawn up.Total harmonic current factor is not more than 3% in full power range, effectively reduces the pollution to power network, power supply safety is ensured, equally with great promotional value.
Description
Technical field
The invention belongs to new-energy automobile charging equipment technical field, and in particular to one kind have power factor harmonic because
The IGBT chargers of number correction.
Background technology
During new-energy automobile large-scale promotion, large-scale rectification charging equipment is used, not only make power because
Number is reduced, and produces substantial amounts of harmonic current, has had a strong impact on the power supply quality of gauze.Power factor reduction so that power supply
Loss increase, increased the capacity requirement to electric equipment；The increase of harmonic current so that the production of electric energy, transmit and utilize
Efficiency is reduced, and is made device of overheating of electrical, is produced vibrations and noise, and makes insulation ag(e)ing, and service life shortens, or even produces event
Barrier.Harmonic wave can cause power system local parallel resonant or series resonance, amplify harmonic content, cause the equipment such as capacitor to burn
Ruin.Harmonic wave can also cause relay protection and the automatics misoperation electric energy metrical is caused confusion.Other harmonic wave can set to communication
It is standby to produce serious interference.It is to use to install reactor, capacitor etc. additional to power factor and traditional administering method of harmonic current
Passive device, is fixed compensation or suitching type compensation.The defect of this method is that high cost, volume are big, and full power range is mended
Repay and realize that difficulty is big.
The content of the invention
It is an object of the invention to provide a kind of IGBT chargers structure and control algolithm, battery charging requirement is being met
On the basis of, solve the problems, such as that above-mentioned background technology is proposed in illustrating.
To achieve the above object, the present invention provides following scheme：
One kind possesses power factor harmonic factor active correction function IGBT chargers, including hardware configuration and control algolithm,
Hardware configuration includes three-phase alternating current input system, three-phase input reactor, IGBT three-phase inversions full-bridge, dc-link capacitance, defeated
Go out system；The three-phase alternating current input system connects the three-phase input reactor input, and the three-phase input reactor is defeated
Go out the end connection IGBT three-phase inversions full-bridge ac output end, the IGBT three-phase inversions full-bridge direct current output end connects direct current
Bus capacitor, the dc-link capacitance connects output system；The control algolithm is handed over using the three-phase inverter of IGBT compositions
Stream side transmission of electricity pressureBe ahead of three-phase alternating current input voltage, it is defeated with three-phase alternating current by the three-phase input reactor
Entering voltage is associated, and capacity current is exported to power network, reaches the purpose for improving power factor, the three-phase inverter of IGBT compositions
Conversion uses Sine Wave Pulse Width Modulation SPWM control modes, therefore, input AC electric current is sine-wave current, and harmonic current is obtained
Effectively draw up, involved parameter has inverter output voltage, input ac voltage, input reactance device voltage, input
Alternating current, output DC voltageAnd inverter output voltageWith input ac voltageBetween angle；It is sinusoidal
The modulation ratio of ripple Pulse Width Modulation is set to, by adjusting variableSize, changes three-phase inverter AC output capacitive
The size of electric current, realizesWithSame-phase, i.e. power factor recoverable are to more than 0.99；
Output DC voltageWithWith variableAnd variableFunction expression be：
CertainUnder value, by adjusting variableAnd variableSize, changesThe size of value, meets battery charging institute
It is required that electricity function index；By Un by actually entering O as system after SPWM rectifications（k）, while the system of acquisition is filled
Electricity is required as Og（k）
O will be actually entered（k）With system requirements Og（k）Carry out computing,, the modulation system for being needed
Number e（k）, then, regulation controling parameter is generated as：
。
The beneficial effects of the invention are as follows：
1st, the IGBT chargers can export capacity current from trend power network, and by its PFC in full power range
To more than 0.99.Input loss is effectively reduced, the capacity of power supply unit is reduced, with extensive promotional value.
2nd, the IGBT chargers use Sine Wave Pulse Width Modulation (i.e. SPWM) control mode, therefore input AC electric current for just
String ripple electric current, harmonic current is effectively drawn up.Total harmonic current factor is not more than 3% in full power range, effectively reduces
Pollution to power network, ensures power supply safety, equally with great promotional value.
3rd, the IGBT charger small volumes, lightweight, comprehensive low cost of manufacture, efficiency high, full power efficiency up to 97%,
Energy-saving effect is notable.
Brief description of the drawings
Wherein Fig. 1：IGBT charger control flow charts.
In figure：It is mains current phase,It is line voltage phase；It is inverter ac output voltage phase；It is inverter direct current output parameter, can is voltage or electric current；Can be curtage for inverter direct current sets parameter.
Fig. 2：In control algolithm--Vector relations
In figure,- inverter output voltage,For input ac voltage,For reactor voltage,For input AC electric current,ForWithBetween angle.
Fig. 3：The IGBT charger structural representations of power factor harmonic factor correcting.
In figure：1- cross streams input system, 2- phase input reactances device, 3-IGBT three-phase inversions full-bridge, 4- dc bus electricity
Appearance, 5- output systems.
Specific embodiment
Technical scheme is described in more detail with reference to specific embodiment.
Refer to shown in Fig. 1 to Fig. 3, a kind of IGBT chargers for possessing power factor harmonic factor active correction function
Hardware configuration include three-phase alternating current input system 1, three-phase input reactor 2, IGBT three-phase inversions full-bridge 3, dc bus electricity
Hold 4, output system 5.
The input of the connection three-phase input of three-phase alternating current input system 1 reactor 2, obtains to battery charging institute from power network
The electric energy for needing, the exchange end of the output end of three-phase input reactor 2 connection IGBT three-phase inversions full-bridge 3, IGBT three-phase inversions full-bridge 3
DC terminal connects dc-link capacitance 4, therefore, the exchange end of IGBT three-phase inversions full-bridge 3 exports capacity current to power network, directly
Stream end exports DC current, the connection output system 5 of the dc-link capacitance 4 by output system 5 to battery.
Operation principle of the invention is：The IGBT three-phase inversions full-bridge 3 has exchange to export（Input）End and direct current output
（Input）End, under the control algolithm and SPWM work method controls, available effect is：1st, ac output end output
Capacitive reactive power current compensation power factor, and it is sine-wave current to keep ac-side current, harmonic current is effectively drawn up；2、
DC output end is on request for battery provides charging current.Three-phase input reactor 2 is realize above-mentioned principle function important
Device；Three-phase alternating current input system 1, comprising EMI filter circuit, is used to leach the higher hamonic wave under modulating frequency；Also include and open
Dynamic pre-charge circuit, for dc-link capacitance 4 is pre-charged before device startup.Dc-link capacitance 4 is energy storage filter part, can
Effectively reduce the voltage ripple on dc bus.Output system 5, comprising the switching device being connected with battery, in abnormal electrical power supply
When, dc-link capacitance 4 and battery can be disconnected.
The IGBT chargers can export capacity current from trend power network, and by its power factor in full power range
More than 0.99 is corrected to, input loss is effectively reduced, the capacity of power supply unit is reduced；Harmonic current can also be made effectively to be intended
System, total harmonic current factor is not more than 3% in full power range；Small volume is also equipped with, lightweight, comprehensive manufacturing cost is low
Feature, conversion efficiency is high, and full power efficiency is up to 97%, and energy-saving effect is notable.With extensive promotional value.
Better embodiment of the invention is described in detail above, but the present invention is not limited to above-mentioned realization side
Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of present inventive concept not be departed from
Various changes can be made.
Claims (2)
1. one kind possesses power factor harmonic factor active correction function IGBT chargers, it is characterized in that, including hardware configuration
And control algolithm, hardware configuration include three-phase alternating current input system, three-phase input reactor, IGBT three-phase inversions full-bridge, direct current
Bus capacitor, output system；The three-phase alternating current input system connects the three-phase input reactor input, and the three-phase is defeated
Enter reactor output end and connect the IGBT three-phase inversions full-bridge ac output end, the IGBT three-phase inversions full-bridge direct current output
End connection dc-link capacitance, the dc-link capacitance connects output system；The control algolithm is using the three of IGBT compositions
Phase inverter AC transmission of electricity pressureBe ahead of three-phase alternating current input voltage, by the three-phase input reactor with
Three-phase alternating current input voltage is associated, and capacity current is exported to power network, reaches the purpose for improving power factor, the three of IGBT compositions
The conversion of phase inverter uses Sine Wave Pulse Width Modulation SPWM control modes, therefore, input AC electric current is sine-wave current, humorous
Ripple electric current is effectively drawn up, and involved parameter has inverter output voltage, input ac voltage, input reactance device electricity
Pressure, input AC electric current, output DC voltageAnd inverter output voltageWith input ac voltageBetween press from both sides
Angle；The modulation ratio of Sine Wave Pulse Width Modulation SPWM is set to, by adjusting variableSize, changes three-phase inverter exchange
Side exports the size of capacity current, realizesWithSame-phase, i.e. power factor recoverable are to more than 0.99.
2. IGBT chargers for possessing power factor harmonic factor active correction function according to claim 1, it is special
Levying is, exports DC voltageWithWith variableAnd variableFunction expression be：
CertainUnder value, by adjusting variableAnd variableSize, changesThe size of value, meets battery charging institute
It is required that electricity function index；By Un by actually entering O as service system after SPWM rectifications（k）, while the system of acquisition
Charging requirement as Og（k）, O will be actually entered（k）With system requirements Og（k）Carry out computing,,
The index of modulation e for being needed（k）, then, regulation controling parameter is generated as：
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710008864.1A CN106787049A (en) | 2017-01-06 | 2017-01-06 | One kind has power factor harmonic factor correcting function IGBT chargers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710008864.1A CN106787049A (en) | 2017-01-06 | 2017-01-06 | One kind has power factor harmonic factor correcting function IGBT chargers |
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| Publication Number | Publication Date |
|---|---|
| CN106787049A true CN106787049A (en) | 2017-05-31 |
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|---|---|---|---|
| CN201710008864.1A Pending CN106787049A (en) | 2017-01-06 | 2017-01-06 | One kind has power factor harmonic factor correcting function IGBT chargers |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3048106A1 (en) * | 2009-09-15 | 2011-03-24 | Rajiv Kumar Varma | Utilization of distributed generator inverters as statcom |
| CN103208801A (en) * | 2013-04-08 | 2013-07-17 | 清华大学 | Active power filter (APF) main circuit applicable to medium voltage system |
| CN103607133A (en) * | 2013-11-29 | 2014-02-26 | 科大智能科技股份有限公司 | Three-phase bridge PWM converter and active power filter formed by same |
| CN104300594A (en) * | 2014-07-18 | 2015-01-21 | 国家电网公司 | Active power grid feedback type battery discharging apparatus |
| CN105529710A (en) * | 2015-12-01 | 2016-04-27 | 贵州大学 | Control method and device based on distribution static synchronous compensator (DSTATCOM) topological structure |
-
2017
- 2017-01-06 CN CN201710008864.1A patent/CN106787049A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3048106A1 (en) * | 2009-09-15 | 2011-03-24 | Rajiv Kumar Varma | Utilization of distributed generator inverters as statcom |
| CN103208801A (en) * | 2013-04-08 | 2013-07-17 | 清华大学 | Active power filter (APF) main circuit applicable to medium voltage system |
| CN103607133A (en) * | 2013-11-29 | 2014-02-26 | 科大智能科技股份有限公司 | Three-phase bridge PWM converter and active power filter formed by same |
| CN104300594A (en) * | 2014-07-18 | 2015-01-21 | 国家电网公司 | Active power grid feedback type battery discharging apparatus |
| CN105529710A (en) * | 2015-12-01 | 2016-04-27 | 贵州大学 | Control method and device based on distribution static synchronous compensator (DSTATCOM) topological structure |
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Application publication date: 20170531 |