CN105099248A - Double-input single-phase inverter - Google Patents
Double-input single-phase inverter Download PDFInfo
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- CN105099248A CN105099248A CN201510606398.8A CN201510606398A CN105099248A CN 105099248 A CN105099248 A CN 105099248A CN 201510606398 A CN201510606398 A CN 201510606398A CN 105099248 A CN105099248 A CN 105099248A
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- brachium pontis
- switch brachium
- switch
- anode
- direct current
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Abstract
The invention discloses a double-input single-phase inverter, and belongs to the technical field of power electronics. The double-input single-phase inverter is composed of two individual direct-current input sources, four switch bridge arms and a filter output circuit, wherein each switch bridge arm is respectively formed by connecting two power switch tubes in series; and the filter output circuit is composed of a filter inductor, a filter capacitor and load. According to the double-input single-phase inverter disclosed by the invention, the condition that the two individual direct-current input sources provide electricity to alternating-current load or a direct-current power grid in a time-sharing manner or simultaneously can be realized; the functions of two inverters are realized; and the double-input single-phase inverter has the advantages of high power density and low volume cost. The two switch bridge arms in the double-input single-phase inverter share input voltage in common; the switch tubes in the switch bridge arms can naturally realize low voltage clamp and voltage stress; and the double-input single-phase inverter can generate a plurality of high-frequency levels for the filter output circuit, and contributes to reduction of the volume and the weight of an output filter and improvement of the power density.
Description
Technical field
The present invention relates to field of power electronics, particularly DC-AC transformation of electrical energy technical field.
Background technology
Inverter is the power conversion unit realizing the conversion of DC-AC electric energy, and the every field of the national economy such as to generate electricity by way of merging two or more grid systems in regenerative resource, motor driving, intelligent micro-grid, electric power system, uninterrupted power supply are powered has application widely.
Traditional inverter only comprises a direct-flow input end and an ac output end, namely can only realize the power conversion between a direct current input source and AC load or AC network.But, in renewable energy power generation, uninterrupted power supply such as to power at the application scenario, usually need to realize the DC-AC transformation of electrical energy between multiple direct current input source and AC load or AC network.Such as, need each distributed photovoltaic power generation power supply to be connected with inverter in distributed photovoltaic power generation system; In light storage integration power supply system, need storage battery to be connected with inverter with photovoltaic generation power supply simultaneously; The reliability and security being connected multiple stand-by power supply to increase with inverter electric power system is needed in uninterrupted power supply electric power system.To achieve these goals, common solution be first by each independently direct current input source be connected with independently DC converter respectively, at the output-parallel by each DC converter, thus form public DC bus, direct current inlet highway as inverter, and then realize the connection of multiple distributed DC input source and inverter.This mode needs to increase multiple DC converter on the one hand, add the volume of system, cost and weight, reduce system reliability, on the other hand because all power needs, through DC converter and the conversion of inverter two stage power, to cause system loss increase, efficiency reduction.
In order to solve the problem, domestic and international research worker is also constantly studying the inverter solution that simultaneously can connect multiple input source.Document " YanZhou, LimingLiu, andHuiLi.AHigh-PerformancePhotovoltaicModule-IntegratedC onverter (MIC) BasedonCascadedQuasi-Z-SourceInverters (qZSI) UsingeGaNFETs [J] .IEEETransactionsonPowerElectronics, 2013, 28 (6): 2727-2738. " the multi input inverter solution that is connected in series based on multiple accurate Z-source inverter is proposed for realizing the access of multiple distributed photovoltaic power generation power supply, document " DongsenSun, BaomingGe, WeihuaLiang, HaithamAbu-Rub, andFangZhengPeng.AnEnergyStoredQuasi-Z-SourceCascadeMult ilevelInverter-BasedPhotovoltaicPowerGenerationSystem [J] .IEEETransactionsonIndustrialElectronics, 2015, 62 (9): 5458-5467. " then further the scheme of the accurate Z-source inverter of series connection is used for the access of distributed photovoltaic and load.Be connected with while AC network although such scheme achieves multiple distributed DC power, the active and passive device One's name is legion adopted, and control complicated.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of dual input single-phase inverter, for solving the technical problem that inverter exists when multiple direct current input source and/or DC bus are connected with AC load or AC network.
For achieving the above object, the technical solution used in the present invention is:
Described dual input single-phase inverter is by the first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3), the 4th switch brachium pontis (4), filtering output circuit (20), the first direct current input source (V
in1) and the second direct current input source (V
in2) form, described first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3) identical with the structure of the 4th switch brachium pontis (4) and comprise anode, negative terminal and N hold.
Any one in described first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3) and the 4th switch brachium pontis (4) all comprises the first power switch pipe (S
1) and the second power switch pipe (S
2), described first power switch pipe (S
1) the anode of collector electrode connecting valve brachium pontis, the first power switch pipe (S
1) emitter connect the second power switch pipe (S
2) collector electrode and switch brachium pontis N end, the second power switch pipe (S
2) the negative terminal of emitter connecting valve brachium pontis.
Described filtering output circuit (20) comprises filter inductance (L), filter capacitor (C) and load (R), one end of filter inductance (L) connects one end of filtering output circuit (20), the other end of filter inductance (L) connects one end of filter capacitor (C) and one end of load (R), and the other end of filter capacitor (C) connects the other end of load (R) and the other end of filtering output circuit (20).
Described first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3), the 4th switch brachium pontis (4), filtering output circuit (20), the first direct current input source (V
in1) and the second direct current input source (V
in2) annexation adopt following four kinds of schemes.
Scheme one: the first direct current input source (V
in1) anode connect the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the negative terminal of the first switch brachium pontis (1) connects negative terminal and the second direct current input source (V of second switch brachium pontis (2)
in2) anode, the first direct current input source (V
in1) negative terminal connect the second direct current input source (V
in2) negative terminal, the negative terminal of the 3rd switch brachium pontis (3) and the negative terminal of the 4th switch brachium pontis (4), the N of the first switch brachium pontis (1) holds the anode of connection the 3rd switch brachium pontis (3), the N of second switch brachium pontis (2) holds the anode of connection the 4th switch brachium pontis (4), the N end of the 3rd switch brachium pontis (3) connects one end of filtering output circuit (20), and the N end of the 4th switch brachium pontis (4) connects the other end of filtering output circuit (20).
Scheme two: described first direct current input source (V
in1) anode connect the second direct current input source (V
in2) anode, the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the negative terminal of the first switch brachium pontis (1) connects the N end of the 3rd switch brachium pontis (3), the N end of the first switch brachium pontis (1) connects one end of filtering output circuit (20), the negative terminal of second switch brachium pontis (2) connects the N end of the 4th switch brachium pontis (4), the N end of second switch brachium pontis (2) connects the other end of filtering output circuit (20), and the anode of the 3rd switch brachium pontis (3) connects the second direct current input source (V
in2) negative terminal and the anode of the 4th switch brachium pontis (4), the negative terminal of the 3rd switch brachium pontis (3) connects negative terminal and the first direct current input source (V of the 4th switch brachium pontis (4)
in1) negative terminal.
Scheme three: described first direct current input source (V
in1) anode connect the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the first direct current input source (V
in1) negative terminal connect the second direct current input source (V
in2) anode, the negative terminal of the first switch brachium pontis (1) and the negative terminal of second switch brachium pontis (2), the N of the first switch brachium pontis (1) holds the anode of connection the 3rd switch brachium pontis (3), the N of second switch brachium pontis (2) holds the anode of connection the 4th switch brachium pontis (4), the N end of the 3rd switch brachium pontis (3) connects one end of filtering output circuit (20), the N end of the 4th switch brachium pontis (4) connects the other end of filtering output circuit (20), and the negative terminal of the 3rd switch brachium pontis (3) connects the second direct current input source (V
in2) negative terminal and the negative terminal of the 4th switch brachium pontis (4).
Scheme four: described first direct current input source (V
in1) anode connect the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the first direct current input source (V
in1) negative terminal connect the second direct current input source (V
in2) anode, the anode of the 3rd switch brachium pontis (3) and the anode of the 4th switch brachium pontis (4), the negative terminal of the first switch brachium pontis (1) connects the N end of the 3rd switch brachium pontis (3), the N end of the first switch brachium pontis (1) connects one end of filtering output circuit (20), the negative terminal of second switch brachium pontis (2) connects the N end of the 4th switch brachium pontis (4), the N end of second switch brachium pontis (2) connects the other end of filtering output circuit (20), and the negative terminal of the 3rd switch brachium pontis (3) connects the second direct current input source (V
in2) negative terminal and the negative terminal of the 4th switch brachium pontis (4).
In such scheme one and scheme two, the first direct current input source (V
in1) voltage must be not less than the second direct current input source (V
in2) voltage.In such scheme three and scheme four, the first direct current input source (V
in1) and the second direct current input source (V
in2) voltage can for the value being greater than arbitrarily zero.
Beneficial effect:
(1) the present invention can provide two direct current power ports and an AC power port simultaneously, two power delivery independently between direct current input source and AC load or AC network and control can be realized simultaneously, only just achieve the function of two inverters with an inverter, have that integrated level is high, power density is high, low cost and other advantages;
(2) compared to the scheme of employing two independently inverter, the present invention effectively reduces the quantity of the passive device such as filter inductance, electric capacity, reduces system cost, improves power density;
(3) can both realize single-stage power conversion between the present invention's two DC input power ports and ac output end mouth, conversion efficiency is high;
(4) in dual input single-phase inverter of the present invention, all switching tubes can be naturally low by the voltage clamp of two direct current input source, voltage stress, therefore the low Breakdown Voltage Power switching device with more excellent switch and conduction property can be adopted, not only can reduce costs, and the efficiency of inverter can be improved;
(5) dual input single-phase inverter of the present invention can produce plurality of level for filtering output circuit, is conducive to reducing interchange output harmonic wave content, improving AC waveform quality, is also conducive to the volume reducing output filter.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of dual input single-phase inverter implementation one of the present invention;
Fig. 2 is the circuit structure diagram of dual input single-phase inverter implementation two of the present invention;
Fig. 3 is the circuit structure diagram of dual input single-phase inverter implementation three of the present invention;
Fig. 4 is the circuit structure diagram of dual input single-phase inverter implementation four of the present invention;
Fig. 5 is the circuit theory diagrams of dual input single-phase inverter breaker in middle brachium pontis of the present invention;
Fig. 6 is the circuit theory diagrams of filtering output circuit in dual input single-phase inverter of the present invention;
Fig. 7 is the circuit theory diagrams of dual input single-phase inverter implementation one of the present invention;
Fig. 8 is dual input single-phase inverter implementation one of the present invention is the equivalent circuit diagram of timing at output voltage;
Fig. 9 is the equivalent circuit diagram of dual input single-phase inverter implementation one of the present invention when output voltage is just and the first direct current input source is powered;
Figure 10 is the equivalent circuit diagram of dual input single-phase inverter implementation one of the present invention when output voltage is just and the second direct current input source is powered;
Figure 11 is the equivalent circuit diagram of dual input single-phase inverter implementation one of the present invention when output voltage is just and the first direct current input source and the second direct current input source are not powered.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Dual input single-phase inverter of the present invention is by the first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3), the 4th switch brachium pontis (4), filtering output circuit (20), the first direct current input source (V
in1) and the second direct current input source (V
in2) form, described first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3) identical with the structure of the 4th switch brachium pontis (4) and comprise anode, negative terminal and N hold.
Described first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3), the 4th switch brachium pontis (4), filtering output circuit (20), the first direct current input source (V
in1) and the second direct current input source (V
in2) annexation can adopt in following four kinds of schemes any one.
The circuit structure diagram of implementation one is as shown in Figure 1: described first direct current input source (V
in1) anode connect the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the negative terminal of the first switch brachium pontis (1) connects negative terminal and the second direct current input source (V of second switch brachium pontis (2)
in2) anode, the first direct current input source (V
in1) negative terminal connect the second direct current input source (V
in2) negative terminal, the negative terminal of the 3rd switch brachium pontis (3) and the negative terminal of the 4th switch brachium pontis (4), the N of the first switch brachium pontis (1) holds the anode of connection the 3rd switch brachium pontis (3), the N of second switch brachium pontis (2) holds the anode of connection the 4th switch brachium pontis (4), the N end of the 3rd switch brachium pontis (3) connects one end of filtering output circuit (20), and the N end of the 4th switch brachium pontis (4) connects the other end of filtering output circuit (20).
The circuit structure diagram of implementation two is as shown in Figure 2: described first direct current input source (V
in1) anode connect the second direct current input source (V
in2) anode, the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the negative terminal of the first switch brachium pontis (1) connects the N end of the 3rd switch brachium pontis (3), the N end of the first switch brachium pontis (1) connects one end of filtering output circuit (20), the negative terminal of second switch brachium pontis (2) connects the N end of the 4th switch brachium pontis (4), the N end of second switch brachium pontis (2) connects the other end of filtering output circuit (20), and the anode of the 3rd switch brachium pontis (3) connects the second direct current input source (V
in2) negative terminal and the anode of the 4th switch brachium pontis (4), the negative terminal of the 3rd switch brachium pontis (3) connects negative terminal and the first direct current input source (V of the 4th switch brachium pontis (4)
in1) negative terminal.
The circuit structure diagram of implementation three is as shown in Figure 3: described first direct current input source (V
in1) anode connect the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the first direct current input source (V
in1) negative terminal connect the second direct current input source (V
in2) anode, the negative terminal of the first switch brachium pontis (1) and the negative terminal of second switch brachium pontis (2), the N of the first switch brachium pontis (1) holds the anode of connection the 3rd switch brachium pontis (3), the N of second switch brachium pontis (2) holds the anode of connection the 4th switch brachium pontis (4), the N end of the 3rd switch brachium pontis (3) connects one end of filtering output circuit (20), the N end of the 4th switch brachium pontis (4) connects the other end of filtering output circuit (20), and the negative terminal of the 3rd switch brachium pontis (3) connects the second direct current input source (V
in2) negative terminal and the negative terminal of the 4th switch brachium pontis (4).
The circuit structure diagram of implementation four is as shown in Figure 4: described first direct current input source (V
in1) anode connect the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the first direct current input source (V
in1) negative terminal connect the second direct current input source (V
in2) anode, the anode of the 3rd switch brachium pontis (3) and the anode of the 4th switch brachium pontis (4), the negative terminal of the first switch brachium pontis (1) connects the N end of the 3rd switch brachium pontis (3), the N end of the first switch brachium pontis (1) connects one end of filtering output circuit (20), the negative terminal of second switch brachium pontis (2) connects the N end of the 4th switch brachium pontis (4), the N end of second switch brachium pontis (2) connects the other end of filtering output circuit (20), and the negative terminal of the 3rd switch brachium pontis (3) connects the second direct current input source (V
in2) negative terminal and the negative terminal of the 4th switch brachium pontis (4).
In above-mentioned implementation, any one in the first switch brachium pontis (1) in dual input single-phase inverter of the present invention, second switch brachium pontis (2), the 3rd switch brachium pontis (3) and the 4th switch brachium pontis (4) is all by the first power switch pipe (S
1) and the second power switch pipe (S
2), the circuit theory diagrams of switch brachium pontis are as shown in Figure 3.In switch brachium pontis, the first power switch pipe (S
1) the anode of collector electrode connecting valve brachium pontis, the first power switch pipe (S
1) emitter connect the second power switch pipe (S
2) collector electrode and switch brachium pontis N end, the second power switch pipe (S
2) the negative terminal of emitter connecting valve brachium pontis.
In above-mentioned implementation, filtering output circuit (20) in dual input single-phase inverter of the present invention comprises filter inductance (L), filter capacitor (C) and load (R), and the circuit theory diagrams of filtering output circuit (20) as shown in Figure 6.One end of filter inductance (L) connects one end of filtering output circuit (20), the other end of filter inductance (L) connects one end of filter capacitor (C) and one end of load (R), and the other end of filter capacitor (C) connects the other end of load (R) and the other end of filtering output circuit (20).
The present invention in the specific implementation, according to implementation one and implementation two, first direct current input source (V
in1) voltage must be not less than the second direct current input source (V
in2) voltage; According to implementation three and implementation four, first direct current input source (V
in1) and the second direct current input source (V
in2) voltage can for the value being greater than arbitrarily zero.
The present invention in the specific implementation, according to implementation one and implementation two, first direct current input source (V
in1) and the second direct current input source (V
in2) timesharing provides power to AC load; According to implementation three and implementation four, first direct current input source (V
in1) and the second direct current input source (V
in2) both timesharing can provide power to AC load, also can provide power to AC load simultaneously.
In the specific implementation, all power switch pipes all need to use the device for power switching with anti-paralleled diode in the present invention.Such as, the IGBT with anti-paralleled diode can be adopted, or adopt the MOSFET with anti-paralleled diode.
In the specific implementation, be connected in series two switching tubes being positioned at same switch brachium pontis can not conducting simultaneously in the present invention.
Below in conjunction with specific embodiment, the present invention program and operation principle thereof are described further.
Because the operation principle of four kinds of embodiments of dual input single-phase inverter of the present invention is similar with process, be only described in detail for embodiment one below.
The first switch brachium pontis (1) in accompanying drawing 1 dual input single-phase inverter embodiment one, second switch brachium pontis (2), the 3rd switch brachium pontis (3) and the 4th switch brachium pontis (4) circuit diagram in accompanying drawing 5 is replaced, and the circuit diagram of the filtering output circuit (20) in accompanying drawing 1 in accompanying drawing 6 is replaced, then can obtain the circuit theory diagrams of the dual input single-phase inverter adopting embodiment one as shown in Figure 7.In accompanying drawing 7: S
11and S
12the first and second power switch pipes in the first switch brachium pontis respectively, S
21and S
22the first and second power switch pipes in second switch brachium pontis respectively, S
31and S
32the first and second power switch pipes in the 3rd switch brachium pontis respectively, S
41and S
42the first and second power switch pipes in the 4th switch brachium pontis respectively, v
ofor the voltage at load (R) two ends, be also the output voltage of dual input inverter, v
fhigh frequency voltage that produce for switch brachium pontis, that put on filtering output circuit two ends.
For dual input single-phase inverter of the present invention, its output voltage v
othe operation principle of positive half cycle and the course of work and output voltage v
ooperation principle and the course of work of negative half period are similar, herein only with output voltage v
opositive half cycle is that example is described.
At output voltage v
opositive half cycle, power switch tube S
21, S
22and S
41keep off state, power switch tube S
42keep opening state, now the equivalent electric circuit of dual input single-phase inverter as shown in Figure 8.
At output voltage v
opositive half cycle, the first direct current input source (V
in1) and the second direct current input source (V
in2) have three kinds of operating states: the first direct current input source (V
in1) independent power supply state, the second direct current input source (V
in2) separately power supply state and two direct current input source (V
in1, V
in2) not power supply states.
Work as power switch tube S
11and S
31during conducting, power switch tube S
12and S
32turn off, now the equivalent electric circuit of dual input single-phase inverter as shown in Figure 9.As we can see from the figure, now the first direct current input source (V
in1) power separately, voltage v
fequal V
in1.
Work as power switch tube S
12and S
31during conducting, power switch tube S
11and S
32turn off, now the equivalent electric circuit of dual input single-phase inverter as shown in Figure 10.As we can see from the figure, now the second direct current input source (V
in2) power separately, voltage v
fequal V
in2.
Work as power switch tube S
11and S
31when all turning off, power switch tube S
12and S
32conducting, now the equivalent electric circuit of dual input single-phase inverter as shown in Figure 11.As we can see from the figure, now the first direct current input source (V
in1) and the second direct current input source (V
in2) all open with filtering output circuit list, two direct current input source do not power to the load, now voltage v
fequal 0.
Obviously, dual input single-phase inverter of the present invention is at output voltage v
opositive half cycle can produce three kinds of level and act on filter rectifier, just can obtain sinusoidal voltage by regulating the length of each level duration and export.
Above-mentioned analysis is only for illustration of the operation principle of dual input single-phase inverter of the present invention, and in fact, the dissimilar modulation strategy that dual input single-phase inverter of the present invention can adopt, when modulation strategy is different, the process of its work is also incomplete same.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a dual input single-phase inverter, is characterized in that: described dual input single-phase inverter is by the first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3), the 4th switch brachium pontis (4), filtering output circuit (20), the first direct current input source (V
in1) and the second direct current input source (V
in2) form, described first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3) identical with the structure of the 4th switch brachium pontis (4) and comprise anode, negative terminal and N hold;
Wherein the first direct current input source (V
in1) anode connect the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the negative terminal of the first switch brachium pontis (1) connects negative terminal and the second direct current input source (V of second switch brachium pontis (2)
in2) anode, the first direct current input source (V
in1) negative terminal connect the second direct current input source (V
in2) negative terminal, the negative terminal of the 3rd switch brachium pontis (3) and the negative terminal of the 4th switch brachium pontis (4), the N of the first switch brachium pontis (1) holds the anode of connection the 3rd switch brachium pontis (3), the N of second switch brachium pontis (2) holds the anode of connection the 4th switch brachium pontis (4), the N end of the 3rd switch brachium pontis (3) connects one end of filtering output circuit (20), and the N end of the 4th switch brachium pontis (4) connects the other end of filtering output circuit (20).
2. the unidirectional inverter of dual input, is characterized in that: described dual input single-phase inverter is by the first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3), the 4th switch brachium pontis (4), filtering output circuit (20), the first direct current input source (V
in1) and the second direct current input source (V
in2) form, described first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3) identical with the structure of the 4th switch brachium pontis (4) and comprise anode, negative terminal and N hold;
Described first direct current input source (V
in1) anode connect the second direct current input source (V
in2) anode, the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the negative terminal of the first switch brachium pontis (1) connects the N end of the 3rd switch brachium pontis (3), the N end of the first switch brachium pontis (1) connects one end of filtering output circuit (20), the negative terminal of second switch brachium pontis (2) connects the N end of the 4th switch brachium pontis (4), the N end of second switch brachium pontis (2) connects the other end of filtering output circuit (20), and the anode of the 3rd switch brachium pontis (3) connects the second direct current input source (V
in2) negative terminal and the anode of the 4th switch brachium pontis (4), the negative terminal of the 3rd switch brachium pontis (3) connects negative terminal and the first direct current input source (V of the 4th switch brachium pontis (4)
in1) negative terminal.
3. a dual input single-phase inverter, is characterized in that: described dual input single-phase inverter is by the first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3), the 4th switch brachium pontis (4), filtering output circuit (20), the first direct current input source (V
in1) and the second direct current input source (V
in2) form, described first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3) identical with the structure of the 4th switch brachium pontis (4) and comprise anode, negative terminal and N hold;
Described first direct current input source (V
in1) anode connect the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the first direct current input source (V
in1) negative terminal connect the second direct current input source (V
in2) anode, the negative terminal of the first switch brachium pontis (1) and the negative terminal of second switch brachium pontis (2), the N of the first switch brachium pontis (1) holds the anode of connection the 3rd switch brachium pontis (3), the N of second switch brachium pontis (2) holds the anode of connection the 4th switch brachium pontis (4), the N end of the 3rd switch brachium pontis (3) connects one end of filtering output circuit (20), the N end of the 4th switch brachium pontis (4) connects the other end of filtering output circuit (20), and the negative terminal of the 3rd switch brachium pontis (3) connects the second direct current input source (V
in2) negative terminal and the negative terminal of the 4th switch brachium pontis (4).
4. the unidirectional inverter of dual input, is characterized in that: described dual input single-phase inverter is by the first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3), the 4th switch brachium pontis (4), filtering output circuit (20), the first direct current input source (V
in1) and the second direct current input source (V
in2) form, described first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3) identical with the structure of the 4th switch brachium pontis (4) and comprise anode, negative terminal and N hold;
Described first direct current input source (V
in1) anode connect the anode of the first switch brachium pontis (1) and the anode of second switch brachium pontis (2), the first direct current input source (V
in1) negative terminal connect the second direct current input source (V
in2) anode, the anode of the 3rd switch brachium pontis (3) and the anode of the 4th switch brachium pontis (4), the negative terminal of the first switch brachium pontis (1) connects the N end of the 3rd switch brachium pontis (3), the N end of the first switch brachium pontis (1) connects one end of filtering output circuit (20), the negative terminal of second switch brachium pontis (2) connects the N end of the 4th switch brachium pontis (4), the N end of second switch brachium pontis (2) connects the other end of filtering output circuit (20), and the negative terminal of the 3rd switch brachium pontis (3) connects the second direct current input source (V
in2) negative terminal and the negative terminal of the 4th switch brachium pontis (4).
5. based on a kind of dual input single-phase inverter described in claim 1-4 any one, it is characterized in that: any one in described first switch brachium pontis (1), second switch brachium pontis (2), the 3rd switch brachium pontis (3) and the 4th switch brachium pontis (4) all comprises the first power switch pipe (S
1) and the second power switch pipe (S
2), described first power switch pipe (S
1) the anode of collector electrode connecting valve brachium pontis, the first power switch pipe (S
1) emitter connect the second power switch pipe (S
2) collector electrode and switch brachium pontis N end, the second power switch pipe (S
2) the negative terminal of emitter connecting valve brachium pontis.
6. one kind based on a kind of dual input single-phase inverter described in claim 1-4 any one, it is characterized in that: described filtering output circuit (20) comprises filter inductance (L), filter capacitor (C) and load (R), one end of filter inductance (L) connects one end of filtering output circuit (20), the other end of filter inductance (L) connects one end of filter capacitor (C) and one end of load (R), and the other end of filter capacitor (C) connects the other end of load (R) and the other end of filtering output circuit (20).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262355A (en) * | 2015-09-28 | 2016-01-20 | 南京航空航天大学 | Multiport inverter |
| CN105553316A (en) * | 2016-01-26 | 2016-05-04 | 南京航空航天大学 | Dual-power channel three-phase AC/DC converter |
| CN113783455A (en) * | 2021-09-14 | 2021-12-10 | 安徽工业大学 | Photovoltaic inverter capable of inhibiting leakage current and control method thereof |
| CN114337207A (en) * | 2021-12-16 | 2022-04-12 | 天津城建大学 | Topology for multiphase stacked interleaved buck converter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040223348A1 (en) * | 2003-05-09 | 2004-11-11 | West Richard T. | Power converter with ripple current cancellation using skewed switching techniques |
| CN101656479A (en) * | 2009-09-24 | 2010-02-24 | 南京航空航天大学 | Zero-voltage switch double-input full bridge converter |
| CN102353832A (en) * | 2011-09-09 | 2012-02-15 | 上海交通大学 | Multi-way direct current voltage detection system of cascade inverter |
| CN102624006A (en) * | 2012-03-29 | 2012-08-01 | 湖南大学 | Control method for single-phase cascade type static synchronous compensator |
| CN103248249A (en) * | 2012-02-03 | 2013-08-14 | 青岛艾迪森科技有限公司 | Magnetic circuit-based parallel system of high power inverter |
| CN104135181A (en) * | 2014-06-12 | 2014-11-05 | 上海紫竹新兴产业技术研究院 | Model predictive control method based on grid-connection inversion of photovoltaic system |
| CN104201918A (en) * | 2014-08-13 | 2014-12-10 | 南京航空航天大学 | Dual-buck bridge arm full-bridge inverter |
-
2015
- 2015-09-21 CN CN201510606398.8A patent/CN105099248B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040223348A1 (en) * | 2003-05-09 | 2004-11-11 | West Richard T. | Power converter with ripple current cancellation using skewed switching techniques |
| CN101656479A (en) * | 2009-09-24 | 2010-02-24 | 南京航空航天大学 | Zero-voltage switch double-input full bridge converter |
| CN102353832A (en) * | 2011-09-09 | 2012-02-15 | 上海交通大学 | Multi-way direct current voltage detection system of cascade inverter |
| CN103248249A (en) * | 2012-02-03 | 2013-08-14 | 青岛艾迪森科技有限公司 | Magnetic circuit-based parallel system of high power inverter |
| CN102624006A (en) * | 2012-03-29 | 2012-08-01 | 湖南大学 | Control method for single-phase cascade type static synchronous compensator |
| CN104135181A (en) * | 2014-06-12 | 2014-11-05 | 上海紫竹新兴产业技术研究院 | Model predictive control method based on grid-connection inversion of photovoltaic system |
| CN104201918A (en) * | 2014-08-13 | 2014-12-10 | 南京航空航天大学 | Dual-buck bridge arm full-bridge inverter |
Non-Patent Citations (3)
| Title |
|---|
| 李艳: "多输入直流变换器电路拓扑及控制策略研究", 《中国博士学位论文全文数据库》 * |
| 李艳等: "一种新的双输入直流变换器", 《电工技术学报》 * |
| 杨东升: "双输入Buck变换器的单周期控制", 《电工技术学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262355A (en) * | 2015-09-28 | 2016-01-20 | 南京航空航天大学 | Multiport inverter |
| CN105262355B (en) * | 2015-09-28 | 2018-08-14 | 南京航空航天大学 | A kind of multiport inverter |
| CN105553316A (en) * | 2016-01-26 | 2016-05-04 | 南京航空航天大学 | Dual-power channel three-phase AC/DC converter |
| CN113783455A (en) * | 2021-09-14 | 2021-12-10 | 安徽工业大学 | Photovoltaic inverter capable of inhibiting leakage current and control method thereof |
| CN113783455B (en) * | 2021-09-14 | 2023-08-11 | 安徽工业大学 | Photovoltaic inverter capable of inhibiting leakage current and control method thereof |
| CN114337207A (en) * | 2021-12-16 | 2022-04-12 | 天津城建大学 | Topology for multiphase stacked interleaved buck converter |
| CN114337207B (en) * | 2021-12-16 | 2023-10-31 | 天津城建大学 | Topology of multiphase stacked interleaved buck converter |
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