CN103560654A - Driving method of full bridge inverter and full bridge inverter - Google Patents
Driving method of full bridge inverter and full bridge inverter Download PDFInfo
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- CN103560654A CN103560654A CN201310486127.4A CN201310486127A CN103560654A CN 103560654 A CN103560654 A CN 103560654A CN 201310486127 A CN201310486127 A CN 201310486127A CN 103560654 A CN103560654 A CN 103560654A
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Abstract
The embodiment of the invention discloses a driving method of a full bridge inverter. The driving method of the full bridge inverter comprises the steps that (1) a pulse driving signal of a switching tube arranged on a first bridge arm of the full bridge inverter and a pulse driving signal of a switching tube arranged on a second bridge arm of the full bridge inverter are generated through modulation of sinusoidal modulating signals, the pulse driving signal of the switching tube arranged on the second bridge arm and the pulse driving signal of the switching tube arranged on the first bridge arm are staggered by a preset angle, wherein the preset angle is larger than zero degree and is smaller than 360 degrees; (2) the pulse driving signal of the switching tube arranged on the first bridge arm and the pulse driving signal of the switching tube arranged on the second bridge arm are input into corresponding switching tube driving ends to control the corresponding switching tubes to be connected or to be disconnected respectively. According to the driving method of the full bridge inverter, the amplitude of output voltage harmonic of the full bridge inverter can be effectively reduced.
Description
Technical field
The present invention relates to field of switch power, be specifically related to full-bridge inverter driving method and full-bridge inverter.
Background technology
Common inverter modulator approach is sinusoidal pulse width modulation (Sinusoidal Pulse Width Modulation, SPWM) and space vector pulse width modulation (Space Vector Pulse Width Modulation, SVPWM) at present.SPWM and SVPWM's is all to utilize voltage impulse equivalency principle, by carrier wave and modulating wave relatively or the synthetic high-frequency impulse that generates inverter switch device of vector drive signal, the opening or turn-offing of driving switch device, thereby generate and sinusoidal wave equivalent pulse width modulation (Pulse-Width Modulation at inverter output end, PWM) ripple, PWM ripple is exported orthodox ripple to load after filter filtering.
In current modulation system, the PWM wave voltage harmonic wave of inverter output is large, need to adopt the radio-frequency component in inductor-capacitor-inductance (LCL) filter filtering harmonic wave.LCL filter cost is higher, and can introduce LCL resonance problems.
Summary of the invention
The embodiment of the present invention provides a kind of full-bridge inverter driving method and full-bridge inverter, and harmonic wave of output voltage is little.
The application's first aspect provides a kind of full-bridge inverter driving method, comprising:
According to the pulse drive signal of switching tube on the first brachium pontis of the described full-bridge inverter of sinusoidal modulation signal modulation generation and the pulse drive signal of the switching tube on the second brachium pontis of described full-bridge inverter, and the phase place of the pulse drive signal of the switching tube on described the second brachium pontis is with respect to the phase shifting preset angles of the pulse drive signal of the switching tube on described the first brachium pontis, wherein, described preset angles is greater than 0 ° and be less than 360 °;
The pulse drive signal of the switching tube on the pulse drive signal of the switching tube on described the first brachium pontis and described the second brachium pontis is input to respectively to corresponding switching tube drive end, controls opening or turn-offing of corresponding switching tube.
In the possible implementation of the first of the application's first aspect, it is described that according to sinusoidal modulation signal, modulation generates the pulse drive signal of switching tube on the first brachium pontis of described full-bridge inverter and the pulse drive signal of the switching tube on the second brachium pontis of described full-bridge inverter, and the phase place of the pulse drive signal of the switching tube on described the second brachium pontis, with respect to preset angles of phase shifting of the pulse drive signal of the switching tube on described the first brachium pontis, comprising:
The first sinusoidal modulation signal and first carrier are relatively generated to the pulse drive signal of the switching tube on the first brachium pontis, the second sinusoidal modulation signal and the second carrier wave ratio are generated to the pulse drive signal of the switching tube on the second brachium pontis, wherein, the phase place of described the second carrier wave is with respect to the phase shifting preset angles of described first carrier, 180 ° of the phase phasic differences of the phase place of described the second sinusoidal modulation signal and described the first sinusoidal modulation signal.
In conjunction with the possible implementation of the first of the application's first aspect, in the possible implementation of the second, described first carrier and described the second carrier wave are triangular wave or sawtooth waveforms.
In the third possible implementation of the application's first aspect, it is described that according to sinusoidal modulation signal, modulation generates the pulse drive signal of switching tube on the first brachium pontis of described full-bridge inverter and the pulse drive signal of the switching tube on the second brachium pontis of described full-bridge inverter, and the phase place of the pulse drive signal of the switching tube on described the second brachium pontis, for preset angles of phase shifting of the driving signal of the switching tube on described the first brachium pontis, comprising:
According to sinusoidal modulation signal, utilize Space vector modulation method to calculate first duty ratio of pulse drive signal of the switching tube on the first brachium pontis and the second duty ratio of the pulse drive signal of the switching tube on the second brachium pontis, according to described the first duty ratio, generate the pulse drive signal of the switching tube on described the first brachium pontis, according to described the second duty ratio, generate the pulse drive signal of the switching tube on described the second brachium pontis, and the phase place of the pulse drive signal of the switching tube on described the second brachium pontis is with respect to the phase shifting preset angles of stating the pulse drive signal of the switching tube on the first brachium pontis.
In conjunction with the third possible implementation of the possible implementation of the second of the possible implementation of the first of the application's first aspect, first aspect, first aspect or first aspect, at full-bridge inverter described in the 4th kind of possible implementation, be single-phase two Level Full Bridge inverters, single-phase many Level Full Bridges inverter, three-phase series two Level Full Bridge inverters or many Level Full Bridges of three-phase series inverter.
The application's second aspect provides a kind of full-bridge inverter, comprising:
Modulation circuit, according to the pulse drive signal of switching tube on the first brachium pontis of the described full-bridge inverter of sinusoidal modulation signal modulation generation and the pulse drive signal of the switching tube on the second brachium pontis of described full-bridge inverter, and the phase place of the pulse drive signal of the switching tube on described the second brachium pontis is with respect to the phase shifting preset angles of the pulse drive signal of the switching tube on described the first brachium pontis, wherein, described preset angles is greater than 0 ° and be less than 360 °, and the pulse signal output end of described modulation circuit is connected to the input of drive circuit;
Described drive circuit, the pulse drive signal of switching tube and the pulse drive signal of the switching tube on described the second brachium pontis on described first brachium pontis of described modulation circuit output are input to respectively to corresponding switching tube drive end, control opening or turn-offing of corresponding switching tube.
In the possible implementation of the first of the application's second aspect,, described modulation circuit comprises:
Modulation signal generator, for generation of the first sinusoidal modulation signal and the second sinusoidal modulation signal;
First carrier generator, the pulse drive signal that relatively generates the switching tube on described the first brachium pontis for the first sinusoidal modulation signal that described modulation signal generator is produced and first carrier;
The second carrier generator, the pulse drive signal that generates the switching tube on described the second brachium pontis for the second sinusoidal modulation signal that described modulation signal generator is produced and the second carrier wave ratio, wherein, the phase place of described the second carrier wave is with respect to the phase shifting preset angles of described first carrier, 180 ° of the phase phasic differences of the phase place of described the second sinusoidal modulation signal and described the first sinusoidal modulation signal.
In conjunction with the possible implementation of the first of the application's first aspect, in the possible implementation of the second, described first carrier and described the second carrier wave are triangular wave or sawtooth waveforms.
In the third possible implementation of the application's second aspect,, described modulation circuit comprises:
Calculator, for utilizing Space vector modulation method to calculate first duty ratio of pulse drive signal of the switching tube on the first brachium pontis and the second duty ratio of the pulse drive signal of the switching tube on the second brachium pontis according to sinusoidal modulation signal;
Signal generator, for described the first duty ratio drawing according to described calculator, generate the pulse drive signal of the switching tube on described the first brachium pontis, according to described the second duty ratio, generate the pulse drive signal of the switching tube on described the second brachium pontis, and the pulse drive signal of the switching tube on described the second brachium pontis is with respect to the pulse drive signal of stating the switching tube on the first brachium pontis preset angles that staggers.
The third possible implementation in conjunction with the possible implementation of the second of the possible implementation of the first of the application's second aspect, second aspect, second aspect or second aspect, in the 4th kind of possible implementation, described full-bridge inverter is single-phase two-level inversion device, single-phase multi-electrical level inverter, three-phase series two-level inversion device or three-phase series multi-electrical level inverter.
The present invention by the driving pulse of the switching tube on full-bridge inverter two brachium pontis is staggered one arbitrarily angled, the equivalent voltage that output inductor two ends are born reduces, thereby effectively reduce harmonic wave of output voltage size, the output of inverter can adopt single inductance L filter to substitute LCL filter, improve the stability of a system, and reduced cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the main circuit diagram of three-phase tri-level half-bridge inverter;
Fig. 2 is the modulation waveform figure of Fig. 1 inverter;
Fig. 3 is the flow chart of a kind of full-bridge inverter driving method of providing of the embodiment of the present invention;
Fig. 4 is carrier waveform figure;
Fig. 5 is phase shift carrier wave drive signal waveform figure;
Fig. 6 is three-phase series three Level Full Bridge converter main circuit figure.
Fig. 7 is the inverter output current simulation waveform figure of carrier wave while not carrying out phase shift;
Fig. 8 is the inverter output current simulation waveform figure of carrier wave while carrying out phase shift;
Fig. 9 is the structure chart of a kind of full-bridge inverter of providing of the embodiment of the present invention;
Figure 10 is the structure chart of the another kind of full-bridge inverter that provides of the embodiment of the present invention;
Figure 11 is the structure chart of another full-bridge inverter of providing of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The SPWM modulation system of multi-electrical level inverter is generally the stacked PWM modulation system of carrier wave at present.The stacked PWM modulation system of carrier wave is directly from two level SPWM methods, to develop, for n level, adopt n-1 the triangular carrier that amplitude is identical with frequency, be divided into two-layer stacked continuously up and down, and two groups of carrier waves are symmetrically distributed in the positive-negative half-cycle of same modulating wave, modulate with same modulating wave, in sampling instant, according to modulating wave, export different level from the comparative result of each triangular carrier.For example, the main circuit diagram of three-phase tri-level half-bridge inverter as shown in Figure 1, in order to realize the ability conversion from DC/AC or AC/DC, need the electronic power switch device of control inverter circuit as the PWM modulation that shutoff realizes DC/AC of opening of IGBT, three-level SPWM modulator approach as shown in Figure 2, by sinusoidal modulation signal S
xwith two triangular carrier T
r1, T
r2compare, produce V
x1, V
x4drive signal, driving switch device IGBT opening and turn-offing, and removes the modulation signal of equivalent simulation sine or other shapes with the impulse wave modulating.
Please refer to Fig. 3, Fig. 3 is the flow chart of a kind of full-bridge inverter driving method of providing of the embodiment of the present invention, comprising:
101, according to the pulse drive signal of switching tube on the first brachium pontis of sinusoidal modulation signal modulation generation full-bridge inverter and the pulse drive signal of the switching tube on the second brachium pontis of full-bridge inverter, and the phase place of the pulse drive signal of the switching tube on the second brachium pontis is with respect to the phase shifting preset angles of the driving signal of the switching tube on the first brachium pontis, wherein, this preset angles is greater than 0 ° and be less than 360 °.
Wherein, according to the method for the pulse drive signal of modulation signal modulation generation switching tube, can be SPWM, or SVPWM, SPWM and SVPWM modulation system repeat no more here.
102, the pulse drive signal of the switching tube on the pulse drive signal of the switching tube on the first brachium pontis and the second brachium pontis is input to respectively to corresponding switching tube drive end, controls opening or turn-offing of corresponding switching tube.
Wherein, if the signal driver that switching tube directly obtains by the modulation driving pin that switching tube drive end is each switching tube, as the gate lead of MOSFET pipe; If switching tube drives by drive circuit, the pulse signal input terminal that drive end of switching tube is drive circuit.
Alternatively, if modulation system is SPWM modulation, it is above-mentioned that according to sinusoidal modulation signal, modulation generates the pulse drive signal of switching tube on the first brachium pontis of full-bridge inverter and the pulse drive signal of the switching tube on the second brachium pontis of full-bridge inverter, and the preset angles of phase place phase shift by the phase place of the pulse drive signal of the switching tube on the second brachium pontis with respect to the pulse drive signal of the switching tube on the first brachium pontis, comprising:
The first sinusoidal modulation signal and first carrier are relatively generated to the pulse drive signal of the switching tube on the first brachium pontis, the second sinusoidal modulation signal and the second carrier wave ratio are generated to the pulse drive signal of the switching tube on the second brachium pontis, wherein, the phase place of the second carrier wave is with respect to preset angles described in the phase shifting of first carrier, 180 ° of the phase phasic differences of the phase place of the second sinusoidal modulation signal and described the first sinusoidal modulation signal.
Wherein, modulation signal is sinusoidal wave, and the second sinusoidal modulation signal is anti-phase 180 ° of the first sinusoidal modulation signal.
As shown in Figure 4, wherein in Fig. 4, waveform 1 is the carrier waveform before phase shift to the oscillogram of carrier wave, and waveform 2 is the carrier waveform behind phase shift α angle.
Wherein, first carrier is for modulating the driving signal that produces the switching tube on full-bridge inverter the first brachium pontis, if full-bridge inverter is n electrical level inverter, need n-1 the carrier wave that amplitude is identical with frequency, first carrier is this n-1 amplitude carrier wave identical with frequency.In like manner, the second carrier wave also may comprise n-1 the carrier wave that amplitude is identical with frequency.
Alternatively, if modulation system is SPWM modulation, first carrier and described the second carrier wave are triangular wave or sawtooth waveforms or other waveform can be used as.
Wherein, in the present embodiment, phase-shifting carrier wave can realize by analog circuit, also can adopt digital signal processor (Digital Signal Processor, DSP) executing arithmetic program to realize.
Adopt DSP to realize phase-shifting carrier wave and mainly by PWM register is composed to different initial values, realize, take three-phase inverter as example, the SPWM modulation step that DSP realizes phase-shifting carrier wave comprises:
The first, DSP general purpose timer Tx is configured to increase and decrease count mode, according to carrier frequency, set the value of the TxPR of corresponding period register.According to the value of the initial value of three-phase misphase position degree and switching frequency count register TxCNT initialization tax TxCNT, initial value=jayrator degree/cycle angle * clock periodicity.Then start timer, as the generator of triangular carrier.
Second, in interrupt service routine, by receiving three-phase voltage instruction, at positive half period, i.e. Ua(b, c) >0, with Ua(b, c) as modulating wave, standardization obtains duty ratio after processing, this duty ratio is multiplied by the value of period register, obtains corresponding clock periodicity, this clock periodicity is loaded into the first comparand register TxCMPRA.At negative half-cycle, be Ua(b, c) <0, with using 1+Ua(b, c) as modulating wave, standardization obtains duty ratio after processing, this duty ratio is multiplied by the value of period register, obtain corresponding clock periodicity, clock periodicity is loaded into the second comparand register TxCMPRB.Wherein, Ua(b, c) refer to that modulating wave is that a is sinusoidal wave mutually, b is sinusoidal wave mutually, or c is sinusoidal wave mutually.
The 3rd, at positive half period, output low level when DSP PWM counter rising edge and clock periodicity relatively occur, exports high level when trailing edge relatively occurs; At negative half-cycle, when relatively occurring, exports counter rising edge high level, output low level when trailing edge relatively occurs.
The phase shift carrier wave that DSP produces drives signal to show as Fig. 5,
Wherein, EPWM1A1, EPWM1B1 are respectively the driving signal of Sa1, the Sa4 of the first brachium pontis, and Sa3, Sa2 drive signal by Sa1, the complementation of Sa4 signal, to obtain respectively; EPWM1A2, EPWM1B2 are respectively the driving signal of Sa1, the Sa4 of the second brachium pontis, and Sa3, Sa2 drive signal by Sa1, the complementation of Sa4 signal, to obtain respectively;
Alternatively, if modulation system is SVPWM modulation, it is above-mentioned that according to modulation signal, modulation generates the driving signal of switching tube on the first brachium pontis of full-bridge inverter and the driving signal of the switching tube on the second brachium pontis of full-bridge inverter, and the preset angles of driving signal phase shift by the driving signal of the switching tube on the second brachium pontis with respect to the switching tube on the first brachium pontis, comprising:
According to modulation signal, utilize Space vector modulation method to calculate first duty ratio of driving signal of the switching tube on the first brachium pontis and the second duty ratio of the driving signal of the switching tube on the second brachium pontis, according to the first duty ratio, generate the driving signal of the switching tube on the first brachium pontis, according to the second duty ratio, generate the driving signal of the switching tube on the second brachium pontis, and the driving signal of the switching tube on the second brachium pontis is delayed or shifted to an earlier date described preset angles.
Wherein, Space vector modulation method can utilize dsp operation algorithm routine to realize.
Alternatively, the method that the present embodiment provides can be applicable to single-phase two Level Full Bridge inverters, single-phase many Level Full Bridges inverter, three-phase series two Level Full Bridge inverters or many Level Full Bridges of three-phase series inverter.Wherein, three-phase series three Level Full Bridge inverters show as Fig. 6.
The present embodiment can effectively reduce inverter output ripple, and Fig. 7 Fig. 8 is respectively the inverter output current simulation waveform figure that carrier wave does not carry out phase shift and carrier wave carries out phase shift.Fig. 7 is not for carrying out the grid-connected current of carrier phase, while carrying out carrier phase as seen from Figure 6, output current does not have larger current ripples, Fig. 8 is the grid-connected current of carrier wave while carrying out 90 degree phase shift, carrier wave carries out phase shift after-current ripple and compares and show while carrying out carrier phase and greatly reduce as seen from Figure 8, and emulation proof the present embodiment can reduce the grid-connected current of inverter greatly.
The present embodiment by the driving pulse of the switching tube on full-bridge inverter two brachium pontis is staggered one arbitrarily angled, the equivalent voltage that output inductor two ends are born reduces, thereby effectively reduce the size of harmonic wave of output voltage, make the output of inverter can adopt single inductance L filter to substitute LCL filter, improve the stability of a system, and reduced cost.
Please refer to Fig. 9, the structure chart of a kind of full-bridge inverter that Fig. 9 provides for the embodiment of the present invention, comprising:
Modulation circuit 201, be used for according to the pulse drive signal of switching tube on the first brachium pontis of sinusoidal modulation signal modulation generation full-bridge inverter and the pulse drive signal of the switching tube on the second brachium pontis of full-bridge inverter, and preset angles of phase place phase shift by the phase place of the pulse drive signal of the switching tube on the second brachium pontis with respect to the pulse drive signal of the switching tube on described the first brachium pontis, wherein, described preset angles is greater than 0 ° and be less than 360 °, and the pulse signal output end of described modulation circuit is connected to the input of drive circuit;
Wherein, the pulse drive signal that drive circuit is exported modulation circuit carries out the corresponding switch peasants and herdsmen of power amplification rear drive and opens or turn-off.
If modulator approach is SPWM modulation, as shown in figure 10, modulation circuit 201 can comprise:
Modulation signal generator 2011, for generation of modulation signal;
First carrier generator 2012, the pulse drive signal that relatively generates the switching tube on the first brachium pontis for the first sinusoidal modulation signal that modulation signal generator 2011 is produced and first carrier;
The second carrier generator 2013, the pulse drive signal that generates the switching tube on the second brachium pontis for the second sinusoidal modulation signal that modulation signal generator 2011 is produced and the second carrier wave ratio, wherein, the phase place of the second carrier wave is with respect to the phase shifting preset angles of first carrier, 180 ° of the phase phasic differences of the phase place of the second sinusoidal modulation signal and described the first sinusoidal modulation signal.
Wherein, if modulation circuit by analog circuit element, realized, modulation signal generator can but be not restricted to and adopt RC sine wave oscillation circuit, first carrier generator and first carrier generator can but be not restricted to triangular wave oscillating circuit.
If modulation circuit is realized by single-chip microcomputer or DSP, modulation signal generator, first carrier generator and the second carrier generator are realized by single-chip microcomputer or the corresponding algorithm of DSP computing.
Wherein, preset angles is for being greater than 0 ° and be less than 360 °.
Alternatively, first carrier and the second carrier wave can be triangular wave, sawtooth waveforms or other waveform.
If modulator approach is SVPWM modulation, as shown in figure 11, modulation circuit 201 can comprise:
Calculator 2014, for utilizing Space vector modulation method to calculate first duty ratio of pulse drive signal of the switching tube on the first brachium pontis and the second duty ratio of the pulse drive signal of the switching tube on the second brachium pontis according to sinusoidal modulation signal;
Signal generator 2015, for the first duty ratio calculating according to calculator 2014, generate the pulse drive signal of the switching tube on the first brachium pontis, according to the second duty ratio, generate the pulse drive signal of the switching tube on the second brachium pontis, and by the pulse drive signal of the switching tube on the second brachium pontis preset angles that staggers.
Wherein, signal generator and calculator can but be not restricted to by single-chip microcomputer or dsp operation algorithm and realize.
Alternatively, the brown full-bridge inverter of the present embodiment can be single-phase two-level inversion device, single-phase multi-electrical level inverter, three-phase series two-level inversion device or three-phase series multi-electrical level inverter.
The driving pulse of the switching tube on full-bridge inverter two brachium pontis that the present embodiment provides stagger one arbitrarily angled, the equivalent voltage that output inductor two ends are born reduces, thereby effectively reduce harmonic wave of output voltage size, make the output of inverter can adopt single inductance L filter to substitute LCL filter, improve the stability of a system, and reduced cost.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (10)
1. a full-bridge inverter driving method, is characterized in that, comprising:
According to the pulse drive signal of switching tube on the first brachium pontis of the described full-bridge inverter of sinusoidal modulation signal modulation generation and the pulse drive signal of the switching tube on the second brachium pontis of described full-bridge inverter, and the phase place of the pulse drive signal of the switching tube on described the second brachium pontis is with respect to the phase shifting preset angles of the pulse drive signal of the switching tube on described the first brachium pontis, wherein, described preset angles is greater than 0 ° and be less than 360 °;
The pulse drive signal of the switching tube on the pulse drive signal of the switching tube on described the first brachium pontis and described the second brachium pontis is input to respectively to corresponding switching tube drive end, controls opening or turn-offing of corresponding switching tube.
2. method according to claim 1, it is characterized in that, it is described that according to sinusoidal modulation signal, modulation generates the pulse drive signal of switching tube on the first brachium pontis of described full-bridge inverter and the pulse drive signal of the switching tube on the second brachium pontis of described full-bridge inverter, and the phase place of the pulse drive signal of the switching tube on described the second brachium pontis, with respect to preset angles of phase shifting of the pulse drive signal of the switching tube on described the first brachium pontis, comprising:
The first sinusoidal modulation signal and first carrier are relatively generated to the pulse drive signal of the switching tube on the first brachium pontis, the second sinusoidal modulation signal and the second carrier wave ratio are generated to the pulse drive signal of the switching tube on the second brachium pontis, wherein, the phase place of described the second carrier wave is with respect to the phase shifting preset angles of described first carrier, 180 ° of the phase phasic differences of the phase place of described the second sinusoidal modulation signal and described the first sinusoidal modulation signal.
3. method according to claim 2, is characterized in that, described first carrier and described the second carrier wave are triangular wave or sawtooth waveforms.
4. method according to claim 1, it is characterized in that, it is described that according to sinusoidal modulation signal, modulation generates the pulse drive signal of switching tube on the first brachium pontis of described full-bridge inverter and the pulse drive signal of the switching tube on the second brachium pontis of described full-bridge inverter, and the phase place of the pulse drive signal of the switching tube on described the second brachium pontis, for preset angles of phase shifting of the driving signal of the switching tube on described the first brachium pontis, comprising:
According to sinusoidal modulation signal, utilize Space vector modulation method to calculate first duty ratio of pulse drive signal of the switching tube on the first brachium pontis and the second duty ratio of the pulse drive signal of the switching tube on the second brachium pontis, according to described the first duty ratio, generate the pulse drive signal of the switching tube on described the first brachium pontis, according to described the second duty ratio, generate the pulse drive signal of the switching tube on described the second brachium pontis, and the phase place of the pulse drive signal of the switching tube on described the second brachium pontis is with respect to the phase shifting preset angles of stating the pulse drive signal of the switching tube on the first brachium pontis.
5. according to the method described in claim 1 to 4 any one, it is characterized in that, described full-bridge inverter is single-phase two Level Full Bridge inverters, single-phase many Level Full Bridges inverter, three-phase series two Level Full Bridge inverters or many Level Full Bridges of three-phase series inverter.
6. a full-bridge inverter, is characterized in that, comprising:
Modulation circuit, according to the pulse drive signal of switching tube on the first brachium pontis of the described full-bridge inverter of sinusoidal modulation signal modulation generation and the pulse drive signal of the switching tube on the second brachium pontis of described full-bridge inverter, and the phase place of the pulse drive signal of the switching tube on described the second brachium pontis is with respect to the phase shifting preset angles of the pulse drive signal of the switching tube on described the first brachium pontis, wherein, described preset angles is greater than 0 ° and be less than 360 °, and the pulse signal output end of described modulation circuit is connected to the input of drive circuit;
Described drive circuit, the pulse drive signal of switching tube and the pulse drive signal of the switching tube on described the second brachium pontis on described first brachium pontis of described modulation circuit output are input to respectively to corresponding switching tube drive end, control opening or turn-offing of corresponding switching tube.
7. full-bridge inverter according to claim 6, is characterized in that, described modulation circuit comprises:
Modulation signal generator, for generation of the first sinusoidal modulation signal and the second sinusoidal modulation signal;
First carrier generator, the pulse drive signal that relatively generates the switching tube on described the first brachium pontis for the first sinusoidal modulation signal that described modulation signal generator is produced and first carrier;
The second carrier generator, the pulse drive signal that generates the switching tube on described the second brachium pontis for the second sinusoidal modulation signal that described modulation signal generator is produced and the second carrier wave ratio, wherein, the phase place of described the second carrier wave is with respect to the phase shifting preset angles of described first carrier, 180 ° of the phase phasic differences of the phase place of described the second sinusoidal modulation signal and described the first sinusoidal modulation signal.
8. full-bridge inverter according to claim 7, is characterized in that, described first carrier and described the second carrier wave are triangular wave or sawtooth waveforms.
9. full-bridge inverter according to claim 6, is characterized in that, described modulation circuit comprises:
Calculator, for utilizing Space vector modulation method to calculate first duty ratio of pulse drive signal of the switching tube on the first brachium pontis and the second duty ratio of the pulse drive signal of the switching tube on the second brachium pontis according to sinusoidal modulation signal;
Signal generator, for described the first duty ratio drawing according to described calculator, generate the pulse drive signal of the switching tube on described the first brachium pontis, according to described the second duty ratio, generate the pulse drive signal of the switching tube on described the second brachium pontis, and the pulse drive signal of the switching tube on described the second brachium pontis is with respect to the pulse drive signal of stating the switching tube on the first brachium pontis preset angles that staggers.
10. according to the full-bridge inverter described in claim 6 to 9 any one, it is characterized in that, described full-bridge inverter is single-phase two-level inversion device, single-phase multi-electrical level inverter, three-phase series two-level inversion device or three-phase series multi-electrical level inverter.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849652A (en) * | 2017-02-17 | 2017-06-13 | 国电南瑞科技股份有限公司 | A kind of 0 ° ~ 360 ° digital phase shifted control method and system |
| CN109964394A (en) * | 2016-11-18 | 2019-07-02 | 阿洛斯电子公司 | DC bus ripple for polyphase machine is eliminated |
| CN112072943A (en) * | 2019-11-27 | 2020-12-11 | 中国船舶重工集团公司第七一九研究所 | H-bridge inverter power supply PWM modulation method for eliminating odd-order switch harmonic waves |
| CN112187075A (en) * | 2020-11-05 | 2021-01-05 | 武汉理工大学 | Three-phase four-bridge arm inverter interference pulse width modulation system and method |
| CN114257114A (en) * | 2021-12-11 | 2022-03-29 | 中科华士电气科技南京有限公司 | Three-level converter control method and system based on carrier phase shift modulation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6519168B2 (en) * | 2000-07-24 | 2003-02-11 | Chippower.Com, Inc. | High frequency DC to AC inverter |
| CN1489272A (en) * | 2002-10-08 | 2004-04-14 | 中国科学院电工研究所 | Phase-shift full-bridge high-frequency inverter based on DSP |
| CN101647187A (en) * | 2007-04-20 | 2010-02-10 | 三菱电机株式会社 | Inverter controller |
| CN201937496U (en) * | 2011-01-06 | 2011-08-17 | 安徽长远绿色能源有限公司 | High-frequency inverter control system based on single-phase space vector pulse width modulation (SVPWM) |
-
2013
- 2013-10-16 CN CN201310486127.4A patent/CN103560654B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6519168B2 (en) * | 2000-07-24 | 2003-02-11 | Chippower.Com, Inc. | High frequency DC to AC inverter |
| CN1489272A (en) * | 2002-10-08 | 2004-04-14 | 中国科学院电工研究所 | Phase-shift full-bridge high-frequency inverter based on DSP |
| CN101647187A (en) * | 2007-04-20 | 2010-02-10 | 三菱电机株式会社 | Inverter controller |
| CN201937496U (en) * | 2011-01-06 | 2011-08-17 | 安徽长远绿色能源有限公司 | High-frequency inverter control system based on single-phase space vector pulse width modulation (SVPWM) |
Non-Patent Citations (2)
| Title |
|---|
| 刘凤君: "《多电平逆变技术及其应用》", 30 April 2007 * |
| 姚文熙等: "三电平H桥级联逆变器载波移相脉宽调制方式", 《浙江大学学报(工学版)》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109964394A (en) * | 2016-11-18 | 2019-07-02 | 阿洛斯电子公司 | DC bus ripple for polyphase machine is eliminated |
| CN109964394B (en) * | 2016-11-18 | 2021-07-20 | 阿洛斯电子公司 | DC bus ripple cancellation for multi-phase electric machines |
| CN106849652A (en) * | 2017-02-17 | 2017-06-13 | 国电南瑞科技股份有限公司 | A kind of 0 ° ~ 360 ° digital phase shifted control method and system |
| CN106849652B (en) * | 2017-02-17 | 2019-03-19 | 国电南瑞科技股份有限公司 | A kind of 0 ° ~ 360 ° digital phase shifted control method and system |
| CN112072943A (en) * | 2019-11-27 | 2020-12-11 | 中国船舶重工集团公司第七一九研究所 | H-bridge inverter power supply PWM modulation method for eliminating odd-order switch harmonic waves |
| CN112187075A (en) * | 2020-11-05 | 2021-01-05 | 武汉理工大学 | Three-phase four-bridge arm inverter interference pulse width modulation system and method |
| CN112187075B (en) * | 2020-11-05 | 2024-05-24 | 武汉理工大学 | Interference pulse width modulation system and method for three-phase four-bridge arm inverter |
| CN114257114A (en) * | 2021-12-11 | 2022-03-29 | 中科华士电气科技南京有限公司 | Three-level converter control method and system based on carrier phase shift modulation |
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