CN209435131U - Frequency conversion light modulator based on Vienna PFC and three-level inverter circuit - Google Patents
Frequency conversion light modulator based on Vienna PFC and three-level inverter circuit Download PDFInfo
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- CN209435131U CN209435131U CN201822159710.5U CN201822159710U CN209435131U CN 209435131 U CN209435131 U CN 209435131U CN 201822159710 U CN201822159710 U CN 201822159710U CN 209435131 U CN209435131 U CN 209435131U
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- switching tube
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- frequency conversion
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses the frequency conversion light modulators based on Vienna PFC and T-type tri-level inversion, including circuit of power factor correction, the three-level inverter circuit being connected by intermediate capacitance in parallel with circuit of power factor correction output end.The utility model can be improved the power factor of input current close to 1 based on the frequency conversion light modulator of Vienna PFC and T-type tri-level inversion；Power supply is reduced to the harmonic pollution of power grid；Energy in intermediate capacitance can obtain the sinewave output of standard by inversion, it is not influenced by input power grid, and output frequency can be increased to 400Hz even 1KHz, so that the volume and weight of required step-up transformer and circuit isolating transformer will greatly reduce；The advantage that output capacity is big, output voltage is high, current harmonics is small, midpoint afterflow ability is strong, improves output ripple, reduces loss.
Description
Technical field
The utility model relates to frequency conversion light modulators, more particularly to the frequency conversion tune based on Vienna PFC and T-type tri-level inversion
Light device.
Background technique
The dimmer circuit structure that airport uses now has substantially two kinds: silicon-controlled phase-controlled dimmer and IGBT high-frequency PWM
Sinewave dimmer.
Silicon-controlled phase-controlled dimmer carries out phased copped wave to power-frequency voltage to adjust output, input by controllable silicon semiconductor
Current power factor is low, and harmonic wave is big, and reactive current, which needs to increase, is twice cross-section of cable product, needs to increase a power in input and mends
Light modulator could be reduced to the interference of power grid and influence by repaying device；Output voltage electric current crest factor is big, and harmonic content is high, not only
It will have a direct impact on the service life of navaid lamps and lanterns, and step-up transformer noise is very big (more than 80dB).And frequency and power grid phase
Together, only 50Hz, in this way since the volume and weight of step-up transformer and isolating transformer it is all very big, such as 30k
Step-up transformer weight is more than 200kg, not only takes iron expense copper, it is big to occupy machine room area, and carrying and installation is all highly difficult.
High-frequency PWM light modulator is by high frequency chopping, and multiple copped wave transformation, defeated by High frequency filter in a power frequency period
The current waveform of an approximate sine wave can be obtained by entering output, there is certain improvement relative to phase-controlled dimmer, but by
It is larger to input electric network influencing, it is not mark that when the harmonic content of power grid is higher, the waveform of output, which can also contain a large amount of harmonic wave,
Quasi- sine wave；And its output frequency can only be mains frequency, only 50Hz, is not avoided that super large weight and volume equally yet
Step-up transformer.
Two kinds of light modulators are all AC/AC single stage shift circuits, can not achieve frequency conversion function.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides based on three level of Vienna PFC and T-type
The frequency conversion light modulator of inversion, including circuit of power factor correction, pass through intermediate capacitance in parallel and circuit of power factor correction output
The connected three-level inverter circuit in end.
The intermediate capacitance includes the first polar capacitor, the second polar capacitor；First polar capacitor and the second polarity
Capacitor series connection.
The circuit of power factor correction includes the first inductance, first capacitor, first switch tube, second switch, third
Switching tube, the 4th switching tube.
The frequency conversion light modulator input terminal connects zero curve by inputting first capacitor；The circuit of power factor correction includes rising
Voltage inductance, first switch tube, second switch, third switching tube, the 4th switching tube；The frequency conversion light modulator input terminal passes through liter
Voltage inductance connects first switch tube second end, second switch first end, third switching tube second end respectively；The first switch tube
First termination the first polar capacitor anode；The third switching tube connects the 4th switching tube first end；4th switching tube second
Terminate connect common node of first polar capacitor with the second polar capacitor；The second switch second terminates the second polarity electricity
Hold cathode.
The T-type three-level inverter circuit includes the 13rd switching tube, the 14th switching tube, the 15th switching tube, the tenth
Six switching tubes, inversion inductor, inversion capacitor；15th switching tube first terminates the first polar capacitor anode；Described tenth
Series connection node, the frequency conversion light modulator negative output terminal, inversion of three switching tubes second termination the first polar capacitor and the second polar capacitor
Capacitor second end；13rd switching tube first terminates the 14th switching tube first end；The 14th switching tube second end
Connect the 15th switching tube second end, sixteenmo closes pipe first end, inversion inductor first end；The termination of inversion inductor second becomes
Frequency light modulator positive output end, inversion capacitor first end；The sixteenmo closes pipe second and terminates the second polar capacitor cathode.
Further, the first switch tube, second switch, third switching tube, the 4th switching tube, the 13rd switch
Pipe, the 14th switching tube, the 15th switching tube, sixteenmo close the metal-oxide-semiconductor or reverse parallel connection that pipe is anti-parallel diodes
The IGBT of diode is managed or fast recovery diode.
Further, the circuit of power factor correction is three tunnels of single channel or output end parallel connection, be used for single-phase alternating current or
The voltage variable frequency adjustment of three-phase mains.
The utility model has the beneficial effects that: frequency conversion of the utility model based on Vienna PFC and T-type tri-level inversion
Light modulator can be improved the power factor of input current close to 1；Power supply is reduced to the harmonic pollution of power grid；Energy in intermediate capacitance
Amount can obtain the sinewave output of standard by inversion, do not influenced by input power grid, output frequency is improved, so that required liter
The volume and weight of pressure transformer and circuit isolating transformer will greatly reduce；Circuit is simplified, reliability is higher；Output capacity
Greatly, output voltage is high, current harmonics is small, and midpoint afterflow ability is strong, improves output ripple, reduces loss.
Detailed description of the invention
Fig. 1 is the frequency conversion dimmer circuit figure based on Vienna PFC and T-type tri-level inversion.
In figure: Q1- first switch tube；Q2- second switch；Q3- third switching tube；The 4th switching tube of Q4-；Q13- the tenth
Three switching tubes；The 14th switching tube of Q14-；The 15th switching tube of Q15-；Q16- sixteenmo closes pipe；L1, L2, L3- boosting electricity
Sense；L4- inversion inductor；C1- first capacitor；The first polar capacitor of C2-；The second polar capacitor of C3-；C4- inversion capacitor；T- isolation
Transformer；D1- aid-to-navigation light.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing: as shown in Figure 1, the utility model is provided based on dimension
It receives the frequency conversion light modulator of PFC and T-type tri-level inversion, including circuit of power factor correction, passes through intermediate capacitance in parallel and power
The connected three-level inverter circuit of factor correcting circuit output end.
Intermediate capacitance includes the first polar capacitor, the second polar capacitor；First polar capacitor and the second polar capacitor
Series connection.
Circuit of power factor correction includes the first inductance, first capacitor, first switch tube, second switch, third switch
Pipe, the 4th switching tube.
Frequency conversion light modulator input terminal connects zero curve by inputting first capacitor；The circuit of power factor correction includes boosting electricity
Sense, first switch tube, second switch, third switching tube, the 4th switching tube；The frequency conversion light modulator input terminal passes through boosting electricity
Sense connects first switch tube second end, second switch first end, third switching tube second end respectively；The first switch tube first
Terminate the first polar capacitor anode；The third switching tube connects the 4th switching tube first end；4th switching tube second termination
The common node of connecting of first polar capacitor and the second polar capacitor；It is negative that the second switch second terminates the second polar capacitor
Pole.
T-type three-level inverter circuit includes the 13rd switching tube, the 14th switching tube, the 15th switching tube, sixteenmo
Guan Guan, inversion inductor, inversion capacitor；15th switching tube first terminates the first polar capacitor anode；Described 13rd opens
Close series connection node, frequency conversion light modulator negative output terminal, inversion capacitor that pipe second terminates the first polar capacitor and the second polar capacitor
Second end；13rd switching tube first terminates the 14th switching tube first end；14th switching tube second termination the
15 switching tube second ends, sixteenmo close pipe first end, inversion inductor first end；The inversion inductor second terminates frequency conversion tune
Light device positive output end, inversion capacitor first end；The sixteenmo closes pipe second and terminates the second polar capacitor cathode.First polarity
Capacitor connect for neutral point with the neutral conductor with the series connection node of the second polar capacitor.
First switch tube, second switch, third switching tube, the 4th switching tube, the 13rd switching tube, the 14th switch
Pipe, the 15th switching tube, sixteenmo close the IGBT pipe that pipe is anti-parallel diodes, and grid connects control terminal, first end
Connect drain electrode, the second termination source electrode.
Circuit of power factor correction is three tunnels, the voltage variable frequency adjustment for three-phase mains.
Positive half cycle soft start: it is the first polar capacitor that electric current, which flows successively through first switch tube, the first polar capacitor, the neutral conductor,
Charging；Negative half period soft start: it is the second pole that electric current, which flows successively through the neutral conductor, the second polar capacitor, second switch, boost inductance,
Property capacitor charging.
When circuit works normally, first switch tube controls duty ratio and realizes that power pulse adjusts driving circuit, realizes switch
DC boosting.The copped wave circuit of circuit are as follows: boost inductance, first switch tube, third switching tube, the 4th switching tube, neutrality are linear
At circuit.The continuous current circuit of circuit are as follows: the circuit that boost inductance, first diode, the first polar capacitor, the neutral conductor are formed.
T-type three-level inverter circuit output end connects load circuit by step-up transformer.The load of airfield aid is more
A concatenated aid-to-navigation light unit, each aid-to-navigation light unit includes isolating transformer, the navaid that is connected with isolating transformer output end
Lamp.It is connected between isolating transformer primary side by cable.
After first switch tube conducting, electric current passes through copped wave circuit, and energy stores export in boost inductance by the first polarity
Capacitor and the second polar capacitor are load supplying；After first switch tube shutdown, the energy for being stored in inductance passes through continuous current circuit
It for intermediate capacitance charging and is load supplying.
5th switching tube is complementary with the 7th switching tube, is upper tube；6th switching tube is complementary with the 8th switching tube, is down tube；
When upper half works, upper tube opens the conducting of i.e. the 7th switching tube；Electric current is returned by the 7th switching tube, inversion inductor, inversion capacitor
To neutral point；When upper half turns off, inversion inductor afterflow work, voltage signal is opened by inversion inductor, the 5th switching tube, the 6th
Close pipe forming circuit.
The utility model frequency conversion light modulator can be improved the power factor of input current close to 1；Power supply is reduced to power grid
Harmonic pollution；The sinewave output of standard can be obtained by inversion for energy in intermediate capacitance, not influenced by input power grid, and
And output frequency can be increased to 400Hz even 1KHz, so that the volume of required step-up transformer and circuit isolating transformer
It will be greatly reduced with weight.It is excellent that three-level topology structure has that output capacity is big, output voltage is high, current harmonic content is small
Point, the ability with midpoint afterflow improve output ripple, reduce loss.
The limitation that the technical solution of the utility model is not limited to the above specific embodiments, all skills according to the present utility model
The technology deformation that art scheme is made, each falls within the protection scope of the utility model.
Claims (3)
1. the frequency conversion light modulator based on Vienna PFC and three-level inverter circuit, which is characterized in that including PFC electricity
Road, the three-level inverter circuit being connected by intermediate capacitance in parallel with circuit of power factor correction output end；
The intermediate capacitance includes the first polar capacitor, the second polar capacitor；First polar capacitor and the second polar capacitor
Series connection；
The circuit of power factor correction includes the first inductance, first capacitor, first switch tube, second switch, third switch
Pipe, the 4th switching tube；
The frequency conversion light modulator input terminal connects zero curve by inputting first capacitor；The circuit of power factor correction includes boosting electricity
Sense, first switch tube, second switch, third switching tube, the 4th switching tube；The frequency conversion light modulator input terminal passes through boosting electricity
Sense connects first switch tube second end, second switch first end, third switching tube second end respectively；The first switch tube first
Terminate the first polar capacitor anode；The third switching tube first terminates the 4th switching tube first end；4th switching tube
The common node of connecting of two termination the first polar capacitors and the second polar capacitor；The second switch second terminates the second polarity
Capacitor cathode；
The three-level inverter circuit includes the 13rd switching tube, the 14th switching tube, the 15th switching tube, sixteenmo pass
Pipe, inversion inductor, inversion capacitor；15th switching tube first terminates the first polar capacitor anode；13rd switch
Pipe second terminates the series connection node, frequency conversion light modulator negative output terminal, inversion capacitor the of the first polar capacitor and the second polar capacitor
Two ends；13rd switching tube first terminates the 14th switching tube first end；14th switching tube second termination the tenth
Five switching tube second ends, sixteenmo close pipe first end, inversion inductor first end；The inversion inductor second terminates frequency conversion light modulation
Device positive output end, inversion capacitor first end；The sixteenmo closes pipe second and terminates the second polar capacitor cathode.
2. the frequency conversion light modulator based on Vienna PFC and three-level inverter circuit according to claim 1, which is characterized in that
The first switch tube, second switch, third switching tube, the 4th switching tube, the 13rd switching tube, the 14th switching tube,
15 switching tubes, sixteenmo close the IGBT pipe or fast of the metal-oxide-semiconductor that pipe is anti-parallel diodes or anti-parallel diodes
Recovery diode.
3. the frequency conversion light modulator based on Vienna PFC and three-level inverter circuit according to claim 1, which is characterized in that
The circuit of power factor correction is three tunnels of single channel or output end parallel connection, the voltage frequency conversion for single-phase alternating current or three-phase mains
It adjusts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822159710.5U CN209435131U (en) | 2018-12-21 | 2018-12-21 | Frequency conversion light modulator based on Vienna PFC and three-level inverter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822159710.5U CN209435131U (en) | 2018-12-21 | 2018-12-21 | Frequency conversion light modulator based on Vienna PFC and three-level inverter circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209435131U true CN209435131U (en) | 2019-09-24 |
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ID=67972903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822159710.5U Expired - Fee Related CN209435131U (en) | 2018-12-21 | 2018-12-21 | Frequency conversion light modulator based on Vienna PFC and three-level inverter circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209435131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821774A (en) * | 2021-02-02 | 2021-05-18 | 深圳弘德智能有限公司 | Converter |
-
2018
- 2018-12-21 CN CN201822159710.5U patent/CN209435131U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821774A (en) * | 2021-02-02 | 2021-05-18 | 深圳弘德智能有限公司 | Converter |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190924 Termination date: 20211221 |