CN106655842B - The novel unipolar alternate frequency multiplication SPWM modulator approach of single-phase high frequency chain matrix rectifier - Google Patents
The novel unipolar alternate frequency multiplication SPWM modulator approach of single-phase high frequency chain matrix rectifier Download PDFInfo
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- CN106655842B CN106655842B CN201710125120.8A CN201710125120A CN106655842B CN 106655842 B CN106655842 B CN 106655842B CN 201710125120 A CN201710125120 A CN 201710125120A CN 106655842 B CN106655842 B CN 106655842B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
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Abstract
A kind of novel unipolar alternate frequency multiplication SPWM modulator approach of single-phase high frequency chain matrix rectifier, single-phase high frequency chain matrix rectifier topology is by AC-input voltage Us, LC input filter, matrix converter, high frequency transformer, rear class do not control diode, L-type filter, load RdcIt is sequentially connected composition.The modulator approach is that two positive and negative sinusoidal modulation waves are compared with the same triangle carrier signal, modulation generates four SPWM waves, knot coupling is carried out again, i.e., carries out obtaining driving wave in eight tunnels after "AND" logic synthesizes with high-frequency square-wave signal Vp and Vn, then carry out "or" logic and synthesize to obtain four road Sah、Sal、Sbh、SblDrive wave, i.e. SnalAnd SpahShare a driving signal Sah, SnahAnd SpalShare a driving signal Sal, SnblAnd SpbhShare a driving signal Sbh, SnbhAnd SpblShare a driving signal Sbl.This method can solve the problems, such as to generate original edge voltage spike due to the primary current ip caused by the presence of transformer leakage inductance does not have circulation path.And there are less switching loss and preferable output voltage waveforms quality.
Description
Technical field
The present invention relates to the modulation of power electronics matrix converter and control fields, especially in single-phase electricity flow pattern high frequency
The modulator approach of chain matrix rectifier.
Background technique
Matrix rectifier is the conventional rectifier that compares and two-way rectifier from being developed by AC-AC matrix converter,
It is standard sine that it, which has input current, and input side can realize unity power factor, not need large capacity energy-storage travelling wave tube, it is only necessary to
Added in input and output side and filter out the low capacity filter of higher hamonic wave, it is small in size, it is light-weight the advantages that.High Frequency Link rectification
Device overcomes the disadvantages of traditional transformer volume is big, noise is big, at high cost using high frequency transformer substitution Industrial Frequency Transformer.High frequency
Chain matrix converter has drawn advantage possessed by High Frequency Link and matrix converter, is the fusion of the two.Matrix rectification
Device does not have intermediate energy storage link compared with conventional rectifier, compact-sized, small in size, high-efficient, can be with using two-way switch
Realize the two-way flow of energy, and output voltage amplitude and frequency can be with independent controls.
Due to the presence of high frequency transformer leakage inductance, when the high frequency chain matrix converter change of current, become in transformer secondary matrix
It can cause biggish voltage overshoot on the switching tube of parallel operation, therefore the Safe commutation of matrix converter is always to restrict High Frequency Link to become
Parallel operation realizes the technological difficulties promoted on a large scale.Common commutation strategy has four_step commutation strategy, based on converter input side line
The two-step commutation strategy of polarity of voltage, and the step change of current based on converter input side line voltage polarity and load current direction
Strategy.
Although causing the modulation of matrix converter and control more multiple however, above-mentioned strategy can be realized Safe commutation
It is miscellaneous, and the change of current is unnatural, switching loss is big, output voltage waveforms are second-rate.
Summary of the invention
It is an object of that present invention to provide a kind of controls simply, nature commutation, switching loss is small, has preferable output voltage wave
The monopole frequency multiplication SPWM current mode of form quality amount is unhitched coupling modulator approach.
To achieve the above object, following technical scheme is used: single-phase high frequency chain matrix transformation involved in the present invention
Device is by AC-input voltage Us, LC input filter, matrix converter, high frequency transformer T, rear class do not control diode rectification
Bridge, L-type filter, resistance RdcIt is sequentially connected composition；Wherein, LC input filter is by inductance Lf, resistance RsWith capacitor CfComposition；
Matrix converter is by controlled tr tube Spah, controlled tr tube Spal, controlled tr tube Spbh, controlled tr tube Spbl, controllably open
Close pipe Snah, controlled tr tube Snal, controlled tr tube Snbh, controlled tr tube SnblComposition；Rear class do not control diode rectifier bridge by
Diode D1, diode D2, diode D3, diode D4Composition；L-type filter is inductance Ldc；
AC-input voltage UsOne end and inductance LfOne end connection, inductance LfThe other end and resistance RsOne end connect
It connects, resistance RsThe other end respectively with capacitor CfOne end, controlled tr tube SpahCollector, controlled tr tube SnahCollector connection；
AC-input voltage UsThe other end respectively with capacitor CfThe other end, controlled tr tube SnbhCollector, controllable switch
Pipe SpbhCollector connection；
Controlled tr tube SpahEmitter and controlled tr tube SnalEmitter connection, controlled tr tube SnalCollector point
Not with controlled tr tube SnblThe connection of winding top, controlled tr tube S on the left of collector, high frequency transformer TnblEmitter and controllable
Switching tube SpbhEmitter connection；
Controlled tr tube SnahEmitter and controlled tr tube SpalEmitter connection, controlled tr tube SpalCollector difference
With controlled tr tube SpblThe connection of winding bottom end, controlled tr tube S on the left of collector, high frequency transformer TpblEmitter with controllably open
Close pipe SnbhEmitter connection；
Winding top and diode D on the right side of high frequency transformer T1Anode, diode D2Cathode connection；On the right side of high frequency transformer T
Winding bottom end and diode D3Anode, diode D4Cathode connection；Diode D1Cathode respectively with diode D3Cathode, inductance Ldc
One end connection；Diode D2Anode respectively with diode D4Anode, resistance RdcOne end connection；Resistance RdcThe other end and inductance LdcSeparately
One end connection；
The modulator approach is to be compared two positive and negative 50HZ sinusoidal modulation waves with the same triangle carrier signal,
Modulation generates four SPWM waves, then carries out knot coupling, i.e., carries out obtaining eight after "AND" logic synthesizes with high-frequency square-wave signal Vp and Vn
Road drives wave, then carries out "or" logic and synthesize to obtain four road Sah、Sal、Sbh、SblDrive wave, i.e. SnalAnd SpahShare a driving
Signal Sah, SnahAnd SpalShare a driving signal Sal, SnblAnd SpbhShare a driving signal Sbh, SnbhAnd SpblShare one
A driving signal Sbl.AC-input voltage UsOne end and inductance LfOne end connection, inductance LfThe other end and resistance RsOne
End connection, resistance RsThe other end respectively with capacitor CfOne end, controlled tr tube SpahCollector, controlled tr tube SnahCollector
Connection；
AC-input voltage UsThe other end respectively with capacitor CfThe other end, controlled tr tube SnbhCollector, controllable switch
Pipe SpbhCollector connection；
Controlled tr tube SpahEmitter and controlled tr tube SnalEmitter connection, controlled tr tube SnalCollector point
Not with controlled tr tube SnblThe connection of winding top, controlled tr tube S on the left of collector, high frequency transformer TnblEmitter and controllable
Switching tube SpbhEmitter connection；
Controlled tr tube SnahEmitter and controlled tr tube SpalEmitter connection, controlled tr tube SpalCollector difference
With controlled tr tube SpblThe connection of winding bottom end, controlled tr tube S on the left of collector, high frequency transformer TpblEmitter with controllably open
Close pipe SnbhEmitter connection；
Winding top and diode D on the right side of high frequency transformer T1Anode, diode D2Cathode connection；On the right side of high frequency transformer T
Winding bottom end and diode D3Anode, diode D4Cathode connection；Diode D1Cathode respectively with diode D3Cathode, inductance Ldc
One end connection；Diode D2Anode respectively with diode D4Anode, resistance RdcOne end connection；Resistance RdcThe other end and inductance LdcSeparately
One end connection；
The modulator approach is to be compared two positive and negative 50HZ sinusoidal modulation waves with the same triangle carrier signal,
Modulation generates four SPWM waves, then carries out knot coupling, i.e., carries out obtaining eight after "AND" logic synthesizes with high-frequency square-wave signal Vp and Vn
Road drives wave, then carries out "or" logic and synthesize to obtain four road Sah、Sal、Sbh、SblDrive wave, i.e. SnalAnd SpahShare a driving
Signal Sah, SnahAnd SpalShare a driving signal Sal, SnblAnd SpbhShare a driving signal Sbh, SnbhAnd SpblShare one
A driving signal Sbl。
Modulator approach of the present invention be by two positive and negative 50HZ sinusoidal modulation waves and the same triangle carrier signal into
Row compares, and modulation generates four SPWM waves, then carries out knot coupling, i.e., after synthesizing with high-frequency square-wave signal Vp and Vn progress "AND" logic
Eight tunnels driving wave is obtained, then carries out "or" logic and synthesizes to obtain four road Sah、Sal、Sbh、SblDrive wave, i.e. SnalAnd SpahShare one
A driving signal Sah, SnahAnd SpalShare a driving signal Sal, SnblAnd SpbhShare a driving signal Sbh, SnbhAnd Spbl
Share a driving signal Sbl。
Further, single-phase high frequency chain matrix converter can be decoupled into the opposite common current type rectification of both direction
Device, i.e., positive group and reverse group rectifier；Controlled tr tube S when positive group rectifier workpah、Spal、Spbh、SpblMovement is equivalent to anti-
Group rectifier switch pipe is in an off state；Controlled tr tube S when reverse group rectifier worksnah、Snal、Snbh、SnblMovement, quite
It is in an off state in just group rectifier switch pipe.
Compared with prior art, the method for the present invention has the advantages that
1, it is large-scale that single-phase high frequency chain rectifier current on line side sine, unity power factor and output may be implemented
DC voltage.
2, the Safe commutation for realizing single-phase high frequency chain matrix rectifier prime matrix converter switching tube, makes the leakage of transformer
Inductance energy is released, and is eliminated because leakage inductance electric current is there are the due to voltage spikes that transformer generates, is reduced switching loss.
3, modulator approach harmonic inhibition capability is strong, and the voltage ripple frequency of output is that a times modulation system is not added in monopole resistant frequency
2 times of lower voltage ripple frequency, but the frequency of switching tube does not double, therefore there is no increases for the loss of switching tube, effectively
Improve output voltage waveforms quality.
4, simple " with or " logic is carried out by monopole frequency multiplication SPWM modulation and synthesize driving switch pipe, control mode is simple
It is singly easily achieved, improves system performance, improves overall efficiency.
Detailed description of the invention
Fig. 1 is single-phase electricity flow pattern high frequency chain matrix rectifier figure used in the present invention.
Fig. 2 is single-phase electricity flow pattern high frequency chain matrix rectifier decoupling figure.
Fig. 3 is the system principle diagram of the method for the present invention.
Fig. 4 is that the unhitch driving signal of coupling SPWM " with or " logic of single-phase electricity flow pattern monopole frequency multiplication generates and schemes.
Fig. 5 is that single-phase single-pole frequency multiplication SPWM " with or " Logic current type unhitches the modulation principle figure of coupling.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing:
As shown in Figure 1, being the topology diagram of the method for the present invention, single-phase high frequency chain matrix converter is by exchange input electricity
Press Us, LC input filter, matrix converter, high frequency transformer T, rear class do not control diode rectifier bridge, L-type filter, resistance
RdcIt is sequentially connected composition；Wherein, LC input filter is by inductance Lf, resistance RsWith capacitor CfComposition；Matrix converter is by controllable
Switching tube Spah, controlled tr tube Spal, controlled tr tube Spbh, controlled tr tube Spbl, controlled tr tube Snah, controlled tr tube
Snal, controlled tr tube Snbh, controlled tr tube SnblComposition；Rear class does not control diode rectifier bridge by diode D1, diode D2, two
Pole pipe D3, diode D4Composition；L-type filter is inductance Ldc；
AC-input voltage UsOne end and inductance LfOne end connection, inductance LfThe other end and resistance RsOne end connect
It connects, resistance RsThe other end respectively with capacitor CfOne end, controlled tr tube SpahCollector, controlled tr tube SnahCollector connection；
AC-input voltage UsThe other end respectively with capacitor CfThe other end, controlled tr tube SnbhCollector, controllable switch
Pipe SpbhCollector connection；
Controlled tr tube SpahEmitter and controlled tr tube SnalEmitter connection, controlled tr tube SnalCollector point
Not with controlled tr tube SnblThe connection of winding top, controlled tr tube S on the left of collector, high frequency transformer TnblEmitter and controllable
Switching tube SpbhEmitter connection；
Controlled tr tube SnahEmitter and controlled tr tube SpalEmitter connection, controlled tr tube SpalCollector difference
With controlled tr tube SpblThe connection of winding bottom end, controlled tr tube S on the left of collector, high frequency transformer TpblEmitter with controllably open
Close pipe SnbhEmitter connection；
Winding top and diode D on the right side of high frequency transformer T1Anode, diode D2Cathode connection；On the right side of high frequency transformer T
Winding bottom end and diode D3Anode, diode D4Cathode connection；Diode D1Cathode respectively with diode D3Cathode, inductance Ldc
One end connection；Diode D2Anode respectively with diode D4Anode, resistance RdcOne end connection；Resistance RdcThe other end and inductance LdcSeparately
One end connection.
As shown in Fig. 2, schematic diagram is decoupled for single-phase electricity flow pattern High Frequency Link matrix rectifier of the invention, according to monopole frequency multiplication
The current mode of SPWM " with or " logic is unhitched coupling modulation principle, and single-phase high frequency chain matrix converter is decoupled into both direction phase
Anti- common current type rectifier, i.e., positive group and reverse group rectifier；Controlled tr tube S when positive group rectifier workpah、Spal、
Spbh、SpblMovement, it is in an off state to be equivalent to reverse group rectifier switch pipe；Controlled tr tube S when reverse group rectifier worksnah、
Snal、Snbh、SnblIt is in an off state to be equivalent to positive group rectifier switch pipe for movement
As shown in figure 3, unhitching the system principle diagram of coupling for monopole frequency multiplication SPWM " with or " Logic current type, as figure includes
Three parts, first part are the generation part of monopole frequency multiplication SPWM signal, the sinusoidal modulation signal that two frequencies are 50HZ with
Triangle carrier signal compares generation；Second part be driving switch pipe signal generation part, four road SPWM signals of generation and
High-frequency square-wave signal Vp、VnIt carries out generating four driving signals after " with or " logic knot is coupled into；Part III is the change of prime matrix
Parallel operation, four tunnel driving signals of generation remove eight switching tubes of driving two bridge arms of matrix converter.
The generation figure of coupling SPWM " with or " logic as shown in figure 4, single-phase electricity flow pattern monopole frequency multiplication is unhitched.Carrier wave is triangle
Wave, modulating wave are 50HZ sine wave, by it is as shown in the figure relatively after generate four SPWM and drive waves, then with high frequency square wave Vp、Vn
"AND" logic is carried out to synthesize to obtain eight driving wave Spah、Spal、Spbh、Spbl、Snah、Snal、Snbh、SnblIt is patrolled followed by "or"
Collect synthesis, i.e. SnalAnd SpahShare a driving signal Sah, SnahAnd SpalShare a driving signal Sal, SnblAnd SpbhIt shares
One driving signal Sbh, SnbhAnd SpblShare a driving signal Sbl.When carrying out the switching tube change of current again in this way, does not have to switching and drive
Dynamic signal, at the same also eliminate because transformer leakage inductance electric current there are due to the transformer voltage spike that generates.
As shown in figure 5, unhitching the modulation principle figure of coupling for single-phase electricity flow pattern monopole frequency multiplication SPWM " with or " logic.According to list
Pole frequency multiplication SPWM unhitches the driving logic of coupling, available schematic diagram as shown in the figure, wherein UcFor the triangular carrier of high frequency, Ue1For
Positive sinusoidal modulation wave, Ue2The sinusoidal modulation wave being negative, passes through Ue1With UcComparison obtain SPWM1, SPWM2, Ue2With UcRatio
Relatively obtain SPWM3, SPWM4；Four road SPWM waves again with complementary high frequency square wave Vp、Vn"AND" logic is first carried out to carry out "or" again and patrol
It collects and finally obtains four tunnels driving wave Sah、Sal、Sbh、Sbl, wherein the frequency of high frequency square wave is the half of carrier frequency；High frequency transformation
Device original edge voltage waveform up becomes the PWM wave of bipolarity tri-state by matrix converter.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (2)
1. a kind of unipolarity frequency multiplication SPWM modulator approach of single-phase high frequency chain matrix rectifier, it is characterised in that: single-phase high frequency
Chain matrix converter is by AC-input voltage Us, LC input filter, matrix converter, high frequency transformer T, rear class do not control two
Pole pipe rectifier bridge, L-type filter, resistance RdcIt is sequentially connected composition；Wherein, LC input filter is by inductance Lf, resistance RsAnd electricity
Hold CfComposition；Matrix converter is by controlled tr tube Spah, controlled tr tube Spal, controlled tr tube Spbh, controlled tr tube
Spbl, controlled tr tube Snah, controlled tr tube Snal, controlled tr tube Snbh, controlled tr tube SnblComposition；Rear class does not control two poles
Pipe rectifier bridge is by diode D1, diode D2, diode D3, diode D4Composition；L-type filter is inductance Ldc；
AC-input voltage UsOne end and inductance LfOne end connection, inductance LfThe other end and resistance RsOne end connection, electricity
Hinder RsThe other end respectively with capacitor CfOne end, controlled tr tube SpahCollector, controlled tr tube SnahCollector connection；
AC-input voltage UsThe other end respectively with capacitor CfThe other end, controlled tr tube SnbhCollector, controlled tr tube Spbh
Collector connection；
Controlled tr tube SpahEmitter and controlled tr tube SnalEmitter connection, controlled tr tube SnalCollector respectively with
Controlled tr tube SnblThe connection of winding top, controlled tr tube S on the left of collector, high frequency transformer TnblEmitter and controllable switch
Pipe SpbhEmitter connection；
Controlled tr tube SnahEmitter and controlled tr tube SpalEmitter connection, controlled tr tube SpalCollector respectively with can
Control switching tube SpblThe connection of winding bottom end, controlled tr tube S on the left of collector, high frequency transformer TpblEmitter and controlled tr tube
SnbhEmitter connection；
Winding top and diode D on the right side of high frequency transformer T1Anode, diode D2Cathode connection；Winding on the right side of high frequency transformer T
Bottom end and diode D3Anode, diode D4Cathode connection；Diode D1Cathode respectively with diode D3Cathode, inductance LdcOne end
Connection；Diode D2Anode respectively with diode D4Anode, resistance RdcOne end connection；Resistance RdcThe other end and inductance LdcThe other end
Connection；
The modulator approach is to be compared two positive and negative 50HZ sinusoidal modulation waves with the same triangle carrier signal, modulation
Generate four SPWM waves spwm1, spwm2, spwm3 and spwm4；
Four SPWM waves carry out knot coupling again, i.e., carry out obtaining the driving of eight tunnels after "AND" logic synthesizes with high-frequency square-wave signal Vp and Vn
Wave Snal, Spah, Snah, Spal, Snbl, Spbh, Snbh and Spbl, i.e. spwm3 and Vp carry out "AND" logic and obtain Snal,
Spwm1 and Vn progress "AND" logic obtains Spah, spwm1 and Vp progress "AND" logic and obtains Snah, spwm3 and Vn progress "AND"
Logic obtain Spal, Spwm4 and Vp carry out "AND" logic obtain Snbl, spwm2 and Vn progress "AND" logic obtain Spbh,
Spwm2 and Vp progress "AND" logic obtains Snbh, spwm4 and Vn progress "AND" logic and obtains Spbl；
Eight tunnels driving wave carries out "or" logic again and synthesizes to obtain four road Sah、Sal、Sbh、SblWave is driven, i.e. Snal and Spah are carried out
"or" logic obtain Sah, Snah and Spal carry out "or" logic obtain Sal, Snbl and Spbh progress "or" logic obtain Sbh,
Snbh and Spbl carries out "or" logic and obtains Sbl, i.e. SnalAnd SpahShare a driving signal Sah, SnahAnd SpalShare a drive
Dynamic signal Sal, SnblAnd SpbhShare a driving signal Sbh, SnbhAnd SpblShare a driving signal Sbl。
2. the unipolarity frequency multiplication SPWM modulator approach of single-phase high frequency chain matrix rectifier according to claim 1, special
Sign is: single-phase high frequency chain matrix converter can be decoupled into the opposite common current type rectifier of both direction, i.e., and positive group
With reverse group rectifier；Controlled tr tube S when positive group rectifier workpah、Spal、Spbh、SpblMovement, is equivalent to reverse group rectifier and opens
It is in an off state to close pipe；Controlled tr tube S when reverse group rectifier worksnah、Snal、Snbh、SnblMovement is equivalent to positive group rectification
Device switching tube is in an off state.
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| CN107707143A (en) * | 2017-09-12 | 2018-02-16 | 燕山大学 | A kind of three-phase four-arm high frequency chain matrix rectifier topology and modulator approach |
| CN107493027B (en) * | 2017-09-13 | 2019-07-26 | 燕山大学 | A kind of modulator approach of single-phase push-pull ortho-exciting formula High Frequency Link matrix inverter topology |
| CN109980975A (en) * | 2019-03-20 | 2019-07-05 | 中山职业技术学院 | High-frequency inverter and its Unipolar sinusoidal pulse width modulation method, computer readable storage medium |
| CN109951088B (en) * | 2019-03-26 | 2020-10-16 | 哈工大（张家口）工业技术研究院 | Control method of single-stage AC-DC converter for electric vehicle charger |
| CN110212781B (en) * | 2019-06-14 | 2021-01-29 | 燕山大学 | Single-phase current type high-frequency chain matrix type power electronic transformer topology and modulation method |
| CN112398352B (en) * | 2020-11-10 | 2021-12-21 | 燕山大学 | Three-module combined AC-AC matrix converter and modulation method thereof |
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