CN109327155A - DC voltage turns inverter, method and the inverter of alternating voltage - Google Patents
DC voltage turns inverter, method and the inverter of alternating voltage Download PDFInfo
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- CN109327155A CN109327155A CN201710643564.0A CN201710643564A CN109327155A CN 109327155 A CN109327155 A CN 109327155A CN 201710643564 A CN201710643564 A CN 201710643564A CN 109327155 A CN109327155 A CN 109327155A
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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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/497—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode sinusoidal output voltages being obtained by combination of several voltages being out of phase
-
- 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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/505—Conversion of dc power input into ac 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 thyratron or thyristor type requiring extinguishing means
- H02M7/515—Conversion of dc power input into ac 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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
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- Inverter Devices (AREA)
Abstract
This disclosure relates to which a kind of DC voltage turns inverter, method and the inverter of alternating voltage, it is related to electronic field, which includes the first inverter module, obtains the positive half-wave signal of AC power source for carrying out inversion to DC power supply；First afterflow module is isolated for the freewheel current after disconnecting first inverter module with the DC power supply；Second inverter module obtains the negative half-wave signa of the AC power source for carrying out inversion to the DC power supply；Second afterflow module is isolated for the freewheel current after disconnecting second inverter module with the DC power supply.The device can reduce common mode leakage current, reduce oscillation circuit, reduce ripple current, the voltage stress for reducing switching tube in inverter reduces the energy loss of switching tube, reduces the damage of voltage stress switch tube, extend the service life of switching tube, the radiation for reducing switching tube reduces the calorific value and energy loss of inductance, increases inversion efficiency.
Description
Technical field
This disclosure relates to electronic field, and in particular, to a kind of DC voltage turn the inverter of alternating voltage, method and
Inverter.
Background technique
Common inverter circuit would generally use circuit as shown in Figure 1, switching tube Q11 and switching tube Q14 in inverter
For one group of bridge arm, positive pulse can be obtained when opening, switching tube Q12 and switching tube Q13 are one group of bridge arm, and negative arteries and veins can be obtained when opening
Punching, two groups of switching tube alternatings are open-minded, the copped wave of high frequency can be obtained, using what is be made of inductance L11, inductance L12 and capacitor C11
Filter circuit, the alternating current that can be needed.But by taking switching tube Q11 and this group of bridge arm of switching tube Q14 as an example, in this group
When bridge arm turns off, since the electric current of inductance L11 and inductance L12 will not be mutated in filter circuit, and on inductance L11 and inductance L12
Part energy is also stored, therefore this portion of energy can flow through direct current power supply loop, increase the common-mode voltage of system, caused altogether
Mode ship electric current increases, while oscillation is also easy to produce during afterflow, increases current ripples, and switch tube voltage stress is caused to increase,
It is unfavorable for the promotion of inversion efficiency.So excessively high voltage stress will result in switch when this group of bridge arm is opened next time
The damage of pipe Q11 and switching tube Q14, influence the service life of switching tube Q11 Yu switching tube Q14, while also will cause switching tube
The energy loss of Q11 and switching tube Q14 are excessive, to will affect the inversion efficiency of inverter；In addition, each group of bridge arm is open-minded
When, inductance L11 and inductance L12 can pass through electric current and generate heat, and also affect the inversion efficiency of inverter.
Summary of the invention
Purpose of this disclosure is to provide inverter, method and inverter that a kind of DC voltage turns alternating voltage, drops
The low common mode leakage current of inverter, reduces oscillation circuit, reduces ripple current, so as to reduce in inverter
The voltage stress of switching tube then reduces the energy loss of switching tube, increases inversion efficiency to a certain extent, also reduces
The damage of voltage stress switch tube, extends the service life of switching tube, while also reducing the electric current on switching tube, electricity
Transients are pressed, this is also equivalent to the radiation for reducing switching tube, reduces electromagnetic interference, in addition also reduce in inverter
The calorific value of inductance, so as to reduce the energy loss of inductance.
To achieve the goals above, the disclosure provides the inverter that a kind of DC voltage turns alternating voltage, inversion dress
It sets and includes:
First inverter module obtains the positive half-wave signal of AC power source for carrying out inversion to DC power supply；
First afterflow module, for by first inverter module disconnect after freewheel current and the DC power supply every
From；
Second inverter module obtains the negative half-wave signa of the AC power source for carrying out inversion to the DC power supply；
Second afterflow module, for by second inverter module disconnect after freewheel current and the DC power supply every
From.
Optionally, first inverter module includes first switch tube, the second inductance and third switching tube, wherein described
First switch tube, second inductance and the third switching tube are connect with the load of the inverter in series；
Second inverter module includes second switch, the first inductance and the 4th switching tube, wherein the second switch, described
First inductance and the 4th switching tube are connect with the load of the inverter in series.
Optionally, the first afterflow module includes the 5th switching tube, first diode and second inductance, wherein institute
State the 5th switching tube, the first diode and second inductance in series with the load of the inverter
Connection；The second afterflow module includes the 6th switching tube, the second diode and first inductance, wherein the 6th switch
Pipe, second diode and first inductance are connect with the load of the inverter in series.
Optionally, which further includes the filter capacitor in parallel with the load of the inverter.
Optionally, first inverter module and second inverter module are worked with higher frequency, first afterflow
Module and the second afterflow module are worked with work frequency.
The disclosure also provides a kind of inverter, which includes above-described inverter.
The disclosure also provides the inverse method that a kind of DC voltage turns alternating voltage, this method comprises:
Inversion is carried out to DC power supply using the first inverter module and obtains the positive half-wave signal of AC power source；
Freewheel current after being disconnected first inverter module using the first afterflow module is isolated with the DC power supply；
Inversion is carried out to the DC power supply using the second inverter module and obtains the negative half-wave signa of the AC power source；
Freewheel current after being disconnected second inverter module using the second afterflow module is isolated with the DC power supply.
Optionally, first inverter module and second inverter module are worked with higher frequency, first afterflow
Module and the second afterflow module are worked with work frequency.
Optionally, this method further include: the positive half-wave signal and the negative half-wave signa are carried out using filter capacitor
Filtering.
Through the above technical solutions, the first afterflow module and the second afterflow module can be respectively in the first inverter modules and
Freewheel current is isolated with DC power supply after disconnecting for two inverter modules, so that continuous current circuit and direct current power supply loop are detached from, therefore
Common mode leakage current is reduced, oscillation circuit is reduced, reduces ripple current, so as to reduce the first inverter module and second
Voltage stress in inverter module increases inversion efficiency, also reduces in this way, it is possible to reduce energy loss to a certain extent
Damage of the voltage stress to element in the first inverter module and the second inverter module, extends the service life of element, simultaneously
Electric current on element, voltage transient amount are also reduced, the radiation for reducing element is also corresponded to, reduces electromagnetic interference, in addition
The calorific value of inductance in inverter is also reduced, so as to reduce the energy loss of inductance.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is a kind of schematic diagram of inverter circuit in the prior art.
Fig. 2 is the signal for the inverter that a kind of DC voltage shown according to an exemplary embodiment turns alternating voltage
Figure.
Fig. 3 is the circuit that a kind of DC voltage shown according to a further exemplary embodiment turns the inverter of alternating voltage
Figure.
Fig. 4 is the process for the inverse method that a kind of DC voltage shown according to an exemplary embodiment turns alternating voltage
Figure.
Description of symbols
The load of 1 DC power supply 2
10 first inverter module, 20 first afterflow module
30 second inverter module, 40 second afterflow module
Q1 first switch tube the second inductance of L2
Q3 third switching tube Q2 second switch
The 4th switching tube of the first inductance of L1 Q4
The 5th switching tube D1 first diode of Q5
The 6th the second diode of switching tube D2 of Q6
100 inverter of C filter capacitor
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
The disclosure provides the inverter 100 that a kind of DC voltage turns alternating voltage, as shown in Fig. 2, the inverter 100
Including the first inverter module 10, the first afterflow module 20, the second inverter module 30 and the second afterflow module 40.
First inverter module 10 obtains the positive half-wave signal of AC power source for carrying out inversion to DC power supply 1.
The first afterflow module 20, for by first inverter module 10 disconnect after freewheel current and the direct current
Source 1 is isolated.
When first inverter module 10 disconnects, transition will not occur for internal electric current, and can store part energy, and first
Inverter module 10 is again straight-through with DC power supply 1, so if this part freewheel current will flow through without the first afterflow module 20
DC power supply 1, and oscillation is generated during afterflow, excessively high voltage stress is generated, to generate as retouched in background technique
The problems such as element loss and inversion efficiency stated are bad equal.
As shown in Fig. 2, the first afterflow module 20 is connected with the first inverter module 10, but it is not connected with DC power supply 1,
Therefore the first afterflow module 20 can provide the afterflow being detached from direct current power supply loop after the disconnection of the first inverter module 10
Afterflow is played the role of to the first inverter module 10 in circuit, freewheel current and institute after first inverter module 10 is disconnected
The isolation of DC power supply 1 is stated, to avoid that above-mentioned there may be problems.
Second inverter module 30 obtains the negative half-wave of the AC power source for carrying out inversion to the DC power supply 1
Signal.
The working principle of second inverter module 30 is consistent with the working principle of the first inverter module 10, the difference is that,
First inverter module 10 to the DC power supply 1 carry out inversion obtain be AC power source positive half-wave signal, the second inversion mould
What block 30 obtained is the negative half-wave signa of AC power source, this is also meaned that, the first inverter module 10 and the second inverter module 30
It is to work alternatively.
The second afterflow module 40, for by second inverter module 30 disconnect after freewheel current and the direct current
Source 1 is isolated.
Second afterflow module 40 is identical as the working principle of the first afterflow module 20.
Through the above technical solutions, the first afterflow module 20 and the second afterflow module 40 can be respectively in the first inverter modules
10 and second inverter module 30 disconnect after the freewheel current of its internal reservoir is isolated with the DC power supply 1, for the first inversion
Module 10 and the freewheel current of the second inverter module 30 provide the special continuous current circuit of a disengaging direct current power supply loop, therefore drop
Low common mode leakage current, reduces oscillation circuit, reduces ripple current, so as to reduce the first inverter module 10 and second
Voltage stress in inverter module 30 increases inversion efficiency, also subtracts in this way, it is possible to reduce energy loss to a certain extent
Small damage of the voltage stress to element in the first inverter module 10 and the second inverter module 30, extend element uses the longevity
Life, while the electric current on element, voltage transient amount are also reduced, the radiation for reducing element is also corresponded to, it is dry to reduce electromagnetism
It disturbs, in addition also reduces the calorific value of inductance in inverter, so as to reduce the energy loss of inductance.
Fig. 3 is the electricity for the inverter 100 that a kind of DC voltage shown according to an exemplary embodiment turns alternating voltage
Lu Tu.As shown in figure 3, including being connected in series with the load 2 of the inverter 100 in the inverter 100
First switch tube Q1, the second inductance L2 and third switching tube Q3, and equally in series with the inverter 100
Second switch Q2, the first inductance L1 and the 4th switching tube Q4 that load 2 is connected.Wherein, first switch tube Q1, the second inductance
L2 and third switching tube Q3 constitutes the first inverter module 10, second switch Q2, the first inductance L1 and the 4th switching tube Q4 group
At the second inverter module 30.
First inverter module 10 is similar with the course of work of the second inverter module 30.
For the first inverter module 10, during the positive half-wave of AC power source, first switch tube Q1 and third switching tube
Q3 by identical frequency and pulse width identical first pulse signal triggering it is open-minded, after opening, electric current by first switch tube Q1,
Second inductance L2, load 2 and third switching tube Q3 forming circuit；When first switch tube Q1 and third switching tube Q3 is in first arteries and veins
It rushes under the control of signal when turning off, the circuit formed by first switch tube Q1, the second inductance L2,2 and third switching tube Q3 of load
It disconnects.
For the second inverter module 30, during the negative half-wave of AC power source, second switch Q2 and the 4th switching tube
Q4 by identical frequency and pulse width identical second pulse signal triggering it is open-minded, after opening, electric current by second switch Q2,
First inductance L1, load 2 and the 4th switching tube Q4 forming circuit；When second switch Q2 and the 4th switching tube Q4 are in the second pulse
When being turned off under the control of signal, broken by the circuit that second switch Q2, the first inductance L1, load 2 and the 4th switching tube Q4 are formed
It opens.
Wherein, the first pulse signal and the second pulse signal can be same pulse signal, be also possible to different pulses
Signal enables the first inverter module 10 work as long as being able to satisfy during the positive half-wave of AC power source, and negative the half of AC power source
The second inverter module 30 is enabled to work during wave.
Through the above technical solutions, there is electric current to flow through in only the second inductance L2 in the work of the first inverter module 10,
When second inverter module 30 works, there is electric current to flow through in only the first inductance L1, this reduces the energy of inverter 100
Loss, also increases inversion efficiency to a certain extent.
As shown in figure 3, further comprising the 5th switching tube Q5, first diode D1, the 6th switching tube in the inverter 100
Q6 and the second diode D2.Wherein, the 5th switching tube Q5, first diode D1 and the second inductance L2 in series with
The load 2 of the inverter 100 connects, and constitutes the first afterflow module 20；6th switching tube Q6, the second diode D2 and described
First inductance L1 is also connect with the load 2 of the inverter 100 in series, constitutes the second afterflow module 40.
During the positive half-wave of AC power source, i.e. during the first inverter module 10 works, in the first afterflow module 20 the
Five switching tube Q5 are persistently opened, but due to the unilateral conduction of diode, the 5th persistently opening for switching tube Q5 can't
First switch tube Q1, first diode D1, the 5th switching tube Q5 and third switching tube Q3 is caused to form access.Similarly, it is exchanging
During the negative half-wave of power supply, i.e. during the second inverter module 30 works, the 6th switching tube Q6 in the second afterflow module 40 is also
It persistently opens, due to the unilateral conduction of diode, persistently opening for the 6th switching tube Q6 will not lead to second switch
Q2, the second diode D2, the 6th switching tube Q6 and the 4th switching tube Q4 form access.Therefore, in the first afterflow module 20
Persistently opening for five switching tube Q5 will not influence first with the 6th persistently opening for switching tube Q6 in the second afterflow module 40
The normal work of inverter module 10 and the second inverter module 30.
Also because of the unilateral conduction of diode, and the first diode D1 in the first afterflow module 20 is being exchanged
It keeps open-minded during the positive half-wave of power supply, i.e., keeps open-minded during the work of the first inverter module 10, so that the first afterflow module
20 can form continuous current circuit when the first inverter module 10 disconnects during its work.During the positive half-wave of AC power source,
When the first inverter module 10 disconnects, the electric current in the second inductance L2 will not be mutated, wherein the freewheel current stored can be by negative
It carries 2 and flows to the 5th switching tube Q5 and first diode D1 to form continuous current circuit, then when the first inverter module 10 is open-minded
When, the 5th switching tube Q5 still maintains open-minded.During the negative half-wave of AC power source, when the second inverter module 30 disconnects, the
The freewheel current of storage in one inductance L1 equally can by load 2 flow to the 6th switching tube Q6 and the second diode D2 to
Continuous current circuit is formed, then when the second inverter module 30 is opened, the 6th switching tube Q6 still maintains open-minded.
Through the above technical solutions, the 5th switching tube Q5 keeps open-minded when the first inverter module 10 works, and the 6th opens
It closes pipe Q6 and keeps open-minded when the second inverter module 30 works, the first afterflow module 20 and the second afterflow module 40 are divided
Not when the first inverter module 10 and the second inverter module 30 are disconnected by the freewheel current of its internal reservoir and the DC power supply 1
Isolation provides the special of a disengaging direct current power supply loop for the freewheel current of the first inverter module 10 and the second inverter module 30
Continuous current circuit reduces common mode leakage current, reduces oscillation circuit, reduces ripple current, so as to reduce the first inversion
The voltage stress of all switching tubes in module 10 and the second inverter module 30, in this way, it is possible to reduce energy to a certain extent
Loss increases inversion efficiency, also reduces voltage stress to all switches in the first inverter module 10 and the second inverter module 30
The damage of pipe extends its service life, while reducing the electric current of all switching tubes, voltage transient amount, also corresponds to reduce
Radiation on the switching tube, reduces electromagnetic interference, in addition also reduces the calorific value of inductance in inverter, so as to
Reduce the energy loss of inductance.
In Fig. 3, which further includes and 2 filter capacitor C in parallel of load.Filter capacitor C and the first inductance
L1 and the second inductance L2 form filter circuit, are able to suppress the excessive fluctuation of electric current, and filter out the dynamic of switching tube in reversals
Make the high-frequency current component generated.
In a kind of possible embodiment, first inverter module 10 and second inverter module 30 are with high again and again
Rate work, the first afterflow module 20 and the second afterflow module 40 are worked with work frequency.
By taking inverter 100 shown in Fig. 3 as an example, the first switch tube Q1 and third in the first inverter module 10 can be triggered
The first pulse signal that switching tube Q3 is opened is high-frequency pulse signal, can trigger the second switch Q2 in the second inverter module 30
It is also high-frequency pulse signal with the 4th switching tube Q4 the second pulse signal opened.During the positive half-wave of an AC power source
Interior, the first inverter module 10 is repeatedly cut-off under the control of the first pulse signal of high frequency, similarly, in the negative of AC power source
During half-wave, the second inverter module 30 is also repeatedly cut-off under the control of the second pulse signal of high frequency.The higher frequency can
To be such as 2KHz, it is also possible to other numerical value, in the disclosure with no restrictions to the specific frequency of the high frequency, as long as meeting industry
Demand.
The rated frequency of the rated frequency of the work frequency, that is, electric system, the electric system of country variant is different, example
It such as can be 50Hz, be also possible to 60Hz, specific frequency can be corresponding different according to country variant and area.
The disclosure also provides a kind of inverter, including above-described inverter 100.
The disclosure also provides the inverse method that a kind of DC voltage turns alternating voltage, as shown in figure 4, the method comprising the steps of
S401 to step S404.
In step S401, inversion is carried out to DC power supply using the first inverter module and obtains the positive half-wave letter of AC power source
Number；
In step S402, using the first afterflow module by first inverter module disconnect after freewheel current with it is described
DC power supply isolation；
In step S403, inversion is carried out to the DC power supply using the second inverter module and obtains the AC power source
Negative half-wave signa；
In step s 404, using the second afterflow module by second inverter module disconnect after freewheel current with it is described
DC power supply isolation.
Wherein, the first inverter module and the second inverter module include turning the inverter of alternating voltage in a kind of DC voltage
In, by the alternation of the first inverter module and the second inverter module, the converting DC voltage of inverter can be reached
At the inversion effect of alternating voltage.First afterflow module and the second afterflow module are also included in the inverter, are respectively used to
Freewheel current after turning off during first inverter module and the second inverter module are worked is isolated with DC power supply.
It is one of process of the inverse method shown in Fig. 4, in addition to this it is possible to the second inverter module of Schilling
First work, and using the second afterflow module by second inverter module disconnect after freewheel current and the DC power supply every
From, then enable again the first inverter module work, and using the first afterflow module by first inverter module disconnect after afterflow
Electric current is isolated with the DC power supply.
Through the above technical solutions, enabling the first afterflow module and the second afterflow module respectively in the first inverter module and second
The freewheel current of its internal reservoir is isolated with the DC power supply after disconnecting for inverter module, is that the first inverter module and second are inverse
The freewheel current for becoming module provides the special continuous current circuit of a disengaging direct current power supply loop, reduces common mode leakage current, reduces
Oscillation circuit, reduces ripple current, so as to reducing the voltage stress in the first inverter module and the second inverter module,
In this way, it is possible to reduce energy loss to a certain extent, increases inversion efficiency, also reduce voltage stress to the first inversion mould
The damage of element, extends the service life of wherein element in block and the second inverter module, at the same reduce the electric current on element,
Voltage transient amount also corresponds to reduce the radiation on the element, reduces electromagnetic interference, in addition also reduce in inverter
The calorific value of inductance, so as to reduce the energy loss of inductance.
In a kind of possible embodiment, first inverter module and second inverter module are with higher frequency work
Make, the first afterflow module and the second afterflow module are worked with work frequency.
In a kind of possible embodiment, this method further include: using filter capacitor to the positive half-wave signal and institute
Negative half-wave signa is stated to be filtered.
The specific implementation of operation involved in the inverse method for turning alternating voltage according to the DC voltage of the embodiment of the present disclosure
Mode is described in detail in the inverter 100 that the DC voltage according to the embodiment of the present disclosure turns alternating voltage,
Details are not described herein again.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (9)
1. the inverter that a kind of DC voltage turns alternating voltage, which is characterized in that the inverter includes:
First inverter module obtains the positive half-wave signal of AC power source for carrying out inversion to DC power supply；
First afterflow module is isolated for the freewheel current after disconnecting first inverter module with the DC power supply；
Second inverter module obtains the negative half-wave signa of the AC power source for carrying out inversion to the DC power supply；
Second afterflow module is isolated for the freewheel current after disconnecting second inverter module with the DC power supply.
2. the apparatus according to claim 1, which is characterized in that
First inverter module includes first switch tube, the second inductance and third switching tube, wherein the first switch tube,
Second inductance and the third switching tube are connect with the load of the inverter in series；
Second inverter module includes second switch, the first inductance and the 4th switching tube, wherein the second switch,
First inductance and the 4th switching tube are connect with the load of the inverter in series.
3. the apparatus of claim 2, which is characterized in that
The first afterflow module includes the 5th switching tube, first diode and second inductance, wherein the 5th switch
Pipe, the first diode and second inductance are connect with the load of the inverter in series；
The second afterflow module includes the 6th switching tube, the second diode and first inductance, wherein the 6th switch
Pipe, second diode and first inductance are connect with the load of the inverter in series.
4. device according to claim 2 or 3, which is characterized in that the device further include with described in the inverter
Load filter capacitor in parallel.
5. according to claim 1 to device described in any claim in 3, which is characterized in that first inverter module and
Second inverter module is worked with higher frequency, and the first afterflow module and the second afterflow module are with work frequency work
Make.
6. a kind of inverter, which is characterized in that including device described in any claim in claim 1 to 5.
7. the inverse method that a kind of DC voltage turns alternating voltage, which is characterized in that this method comprises:
Inversion is carried out to DC power supply using the first inverter module and obtains the positive half-wave signal of AC power source；
Freewheel current after being disconnected first inverter module using the first afterflow module is isolated with the DC power supply；
Inversion is carried out to the DC power supply using the second inverter module and obtains the negative half-wave signa of the AC power source；
Freewheel current after being disconnected second inverter module using the second afterflow module is isolated with the DC power supply.
8. the method according to the description of claim 7 is characterized in that first inverter module and second inverter module with
Higher frequency work, the first afterflow module and the second afterflow module are worked with work frequency.
9. method according to claim 7 or 8, which is characterized in that this method further include:
The positive half-wave signal and the negative half-wave signa are filtered using filter capacitor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697867A (en) * | 2019-03-11 | 2020-09-22 | 比亚迪股份有限公司 | Photovoltaic power supply system, inverter device and control method of inverter device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202353485U (en) * | 2011-07-29 | 2012-07-25 | 阳光电源股份有限公司 | Inverter |
| CN202353489U (en) * | 2011-07-29 | 2012-07-25 | 阳光电源股份有限公司 | Inverter |
| CN103178734A (en) * | 2013-03-08 | 2013-06-26 | 沃太能源南通有限公司 | Photovoltaic inverter |
| CN105141160A (en) * | 2015-08-24 | 2015-12-09 | 苏州市博得立电源科技有限公司 | Vehicle-mounted power supply photovoltaic inverter |
| CN105262091A (en) * | 2015-08-24 | 2016-01-20 | 苏州市博得立电源科技有限公司 | Control method for vehicle-mounted power supply photovoltaic inverter |
| CN205647288U (en) * | 2016-04-29 | 2016-10-12 | 三峡大学 | Non - isolated form photovoltaic grid -connected inverter |
-
2017
- 2017-07-31 CN CN201710643564.0A patent/CN109327155A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202353485U (en) * | 2011-07-29 | 2012-07-25 | 阳光电源股份有限公司 | Inverter |
| CN202353489U (en) * | 2011-07-29 | 2012-07-25 | 阳光电源股份有限公司 | Inverter |
| CN103178734A (en) * | 2013-03-08 | 2013-06-26 | 沃太能源南通有限公司 | Photovoltaic inverter |
| CN105141160A (en) * | 2015-08-24 | 2015-12-09 | 苏州市博得立电源科技有限公司 | Vehicle-mounted power supply photovoltaic inverter |
| CN105262091A (en) * | 2015-08-24 | 2016-01-20 | 苏州市博得立电源科技有限公司 | Control method for vehicle-mounted power supply photovoltaic inverter |
| CN205647288U (en) * | 2016-04-29 | 2016-10-12 | 三峡大学 | Non - isolated form photovoltaic grid -connected inverter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697867A (en) * | 2019-03-11 | 2020-09-22 | 比亚迪股份有限公司 | Photovoltaic power supply system, inverter device and control method of inverter device |
| CN111697867B (en) * | 2019-03-11 | 2022-03-18 | 比亚迪股份有限公司 | Photovoltaic power supply system, inverter device and control method of inverter device |
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Application publication date: 20190212 |