CN104734547A - Boost unit Z-source inverter - Google Patents
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- CN104734547A CN104734547A CN201510122716.3A CN201510122716A CN104734547A CN 104734547 A CN104734547 A CN 104734547A CN 201510122716 A CN201510122716 A CN 201510122716A CN 104734547 A CN104734547 A CN 104734547A
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Abstract
The invention discloses a boost unit Z-source inverter. A boost unit is arranged in a Z-source structure and comprises a coupling inductor, a third capacitor and a second power diode, the coupling inductor comprises a first winding and a second winding which are connected in series in the forward direction, the unlike end of the first winding is connected with one end of the third capacitor and the positive pole of the second power diode, the dotted terminal of the second winding is connected with the other end of the third capacitor, and the unlike end of the second winding is connected with the negative pole of the second power diode. Compared with a traditional quasi-Z-source inverter, the input voltage range is wider, conversion efficiency is higher, and higher boost characteristic is achieved during low-voltage input.
Description
Technical field
The present invention relates to boosting unit Z-source inverter, belong to converters field.
Background technology
Inverter is widely used in motor and drives, uninterruption power source, static state reactive generator and the occasion such as compensator and active power filtering.Traditional inverter circuit is generally two-stage type structure, prime is straight booster converter, rear class is inverter, in two-stage type structure, direct-current chain needs to add decoupling capacitor, volume weight is large, need to control respectively front and back stages simultaneously, cause conventional inverter structural entity complex structure, control loaded down with trivial details.
In order to solve the above problem of conventional inverter, scholar is had to propose the concept of Z-source inverter.Z-source inverter is a kind of single-stage buck-boost inverter, and DC source and inverter side are coupled together by introducing Z source network by it, and utilize bridge arm direct pass to realize boosting, its wide input voltage range, reliability is high.But there is certain shortcoming in Z-source inverter: boost capability is general, in the occasion that some input voltages are lower, need higher straight-through duty ratio, add the conduction loss of system, reduce efficiency, therefore, Z-source inverter be applied in low-voltage input occasion be still restricted.
Therefore, limited for Z-source inverter boost capability, efficiency such as to have much room for improvement at the shortcoming, promotes such inverter performance, has great importance.
Summary of the invention
The object of the present invention is to provide that a kind of turn ratio is little, input voltage range is wider, boosting unit Z-source inverter that boosting characteristic is good, solve and adopt high frequency transformer boosting volume, weight, problem that loss is large.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of boosting unit Z-source inverter, comprise the Z source structure and inverter bridge that connect successively, a boosting unit is provided with in described Z source structure, described boosting unit comprises coupling inductance, the 3rd electric capacity and the second power diode, wherein coupling inductance comprises the first winding and second winding of forward series connection, the different name end of the first winding is connected with one end of the 3rd electric capacity and the second power diode anode, the Same Name of Ends of the second winding is connected with the other end of the 3rd electric capacity, and the different name end of the second winding is connected with the second power diode negative electrode.
Further, described Z source structure also comprises direct voltage source, the first inductance, the first electric capacity, the second electric capacity and the first power diode; Wherein,
One end of first inductance is connected with direct voltage source positive pole, and the other end is connected with the anode of the first power diode and one end of the second electric capacity; The negative electrode of the first power diode is connected with the Same Name of Ends of the first winding in boosting unit and one end of the first electric capacity, the other end of the first electric capacity is connected with direct voltage source negative pole, inverter bridge input cathode, and in the other end of the second electric capacity and boosting unit, the different name end of the second winding is connected with inverter bridge input anode.
Further, described Z source structure also comprises direct voltage source, the first inductance, the first electric capacity, the second electric capacity and the first power diode; Wherein,
One end of first inductance is connected with one end of the first electric capacity, inverter bridge input cathode, and the other end of the first inductance is connected with one end of the anode of the first power diode and the second electric capacity; The negative electrode of the first power diode is connected with the Same Name of Ends of the first winding in boosting unit and the other end of the first electric capacity, in boosting unit, the different name end of the second winding is connected with the second electric capacity other end and is connected with direct voltage source negative pole, and direct voltage source positive pole is connected to inverter bridge input anode.
Further, described Z source structure also comprises direct voltage source, the first inductance, the first electric capacity, the second electric capacity and the first power diode; Wherein,
One end of first inductance is connected with one end of the first electric capacity, inverter bridge input cathode, the other end of the first inductance is connected with one end of the negative pole of direct voltage source and the second electric capacity, the positive pole of direct voltage source is connected with the first power diode anode, the negative electrode of the first power diode is connected with the Same Name of Ends of the first winding in boosting unit and the other end of the first electric capacity, and in boosting unit, the different name end of the second winding is connected with the second electric capacity other end and inverter bridge input anode.
Further, described inverter bridge comprises three brachium pontis, first, second power switch pipe that the first brachium pontis is connected, the 3rd, the 4th power switch pipe that the second brachium pontis is connected, the 5th, the 6th power switch pipe that the 3rd brachium pontis is connected; Wherein, the anode of the first, the 3rd, the 5th power switch pipe is connected to inverter bridge input anode, and the negative electrode of the second, the 4th, the 6th power switch pipe is connected to inverter bridge input cathode.
Preferred as one, described power switch pipe is metal-oxide-semiconductor or IGBT pipe.
The present invention adopts technique scheme, there is following beneficial effect: described boosting unit Z-source inverter is single-stage buck-boost inverter, more traditional Z-source inverter, and input voltage range is wider, conversion efficiency is higher, has higher boosting characteristic when low pressure inputs.
The advantage that the first structure has is that boosting unit is between the first electric capacity and the second electric capacity, and during boosting work, DC-link voltage is by two capacitor voltage clampeds, and the due to voltage spikes brought by coupling inductance leakage inductance can not increase direct-current chain power device stress; In addition, direct voltage source is connected with the first inductance, makes input current be in continuously (CCM) pattern, can extend direct voltage source useful life.
The advantage that the second structure has is that direct voltage source is between boosting unit and inverter bridge, avoids boosting unit Z-source inverter and starts the large shortcoming of impact, reduce the first capacitance voltage stress in addition.
The advantage that the third structure has is to reduce the first capacitance voltage stress, can adopt the element that stress is lower, reduces loss, raises the efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of circuit structure diagram of boosting unit Z-source inverter;
Fig. 2 is the operation mode figure of the boosting unit Z-source inverter that Fig. 1 shows;
Fig. 3 is the operation mode figure of the boosting unit Z-source inverter that Fig. 1 shows;
Fig. 4 is the operation mode figure of the boosting unit Z-source inverter that Fig. 1 shows;
Fig. 5 is the simulation waveform figure of the boosting unit Z-source inverter that Fig. 1 shows;
Fig. 6 is the simulation waveform figure of the boosting unit Z-source inverter that Fig. 1 shows;
Fig. 7 is the simulation waveform figure of the boosting unit Z-source inverter that Fig. 1 shows;
Fig. 8 is a kind of circuit structure diagram of boosting unit Z-source inverter;
Fig. 9 is a kind of circuit structure diagram of boosting unit Z-source inverter;
Number in the figure illustrates: V
dc-direct voltage source; V
c1-the first capacitance voltage, V
c2-the second capacitance voltage, V
o-output AC voltage, V
pn-DC-link voltage, i
in-the first inductance L 1 electric current, V
cVL-three electric capacity C
vLvoltage, V
l3-coupling inductance second winding voltage.
Embodiment
The invention provides a kind of boosting unit Z-source inverter, for making object of the present invention, clearly, clearly, and the present invention is described in more detail with reference to accompanying drawing examples for technical scheme and effect.Should be appreciated that concrete enforcement described herein is only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
A kind of boosting unit Z-source inverter as described in Figure 1 comprises Z source structure, boosting unit and inverter bridge, and boosting unit Z-source inverter input termination direct voltage source, output connects filter inductance and filter capacitor.In the present embodiment, the second inductance boosting unit in conventional Z source structure is replaced.
Specifically, the Z source structure that the present embodiment provides comprises: direct voltage source V
dc, the first inductance L
1, boosting unit, the first electric capacity C
1, the second electric capacity C
2and the first power diode D
in; Wherein: the first inductance L
1one end be connected with direct voltage source positive pole, the first inductance L
1the other end and the first power diode D
inanode and the second electric capacity C
2one end connect; First power diode D
innegative electrode and one end of boosting unit and the first electric capacity C
1one end connect, the first electric capacity C
1the other end and direct voltage source V
dcnegative pole is connected with inverter bridge input cathode, the second electric capacity C
2the other end and the other end of boosting unit be connected with inverter bridge input anode.
Above-mentioned boosting unit, comprising: coupling inductance, the 3rd electric capacity C
vL, the second power diode D
2; Described coupling inductance comprises the first winding L 3, second winding L 4.The Same Name of Ends of this first winding L 3 and the first power diode D
innegative electrode, the first electric capacity C
1one end connect, the different name end of the first winding L 3 and the 3rd electric capacity C
vLone end and the second power diode D
2anode connects; 3rd electric capacity C
vLthe other end be connected with the second winding L 4 Same Name of Ends, the second power diode D
2negative electrode and different name end, the second electric capacity C of the second winding L 4
2the other end and inverter bridge input anode connect.
The inverter bridge structure adopted in the present embodiment comprises: the first brachium pontis, the second brachium pontis, the 3rd brachium pontis; Wherein, the first brachium pontis comprises the power switch tube S of series connection
1and S
2, the second brachium pontis comprises the power switch tube S of series connection
3and S
4, the 3rd brachium pontis comprises the power switch tube S of series connection
5and S
6; Wherein, the anode of the first, the 3rd, the 5th power switch pipe is connected to inverter bridge input anode, and the negative electrode of the second, the 4th, the 6th power switch pipe is connected to inverter bridge input cathode; Inverter bridge input anode and coupling inductance second winding L
4different name end, the second power diode D
2negative electrode and the second electric capacity C
2be connected, the first brachium pontis, the second brachium pontis, the other end of the 3rd brachium pontis and direct voltage source V
dcnegative pole, the first electric capacity C
1connect.
The brachium pontis mid point of the first brachium pontis, the second brachium pontis, the 3rd brachium pontis is inverter output end, and filter inductance and filter capacitor are connected with output, and load is attempted by filter capacitor.
Coupling inductance can be equivalent to leakage inductance Llk and ideal transformer series model, and wherein, magnetizing inductance is Lm, and the ideal transformer former limit secondary turn ratio is n2 and n3.
(A): non-pass-through state 1
Non-pass-through state, power diode D
inconducting, D
2turn off, the former limit L of coupling inductance
2, secondary L
3with boost capacitor C
vLconnect jointly for direct-current chain is powered, inductive current i
l3linear reduction.T
0in the moment, the upper and lower switching tube of the same brachium pontis of inverter bridge is simultaneously open-minded, and Z-source inverter works in bridge arm direct pass state, power diode D
inturn off, diode D
2open-minded, leakage inductance current i
llklinear increase, coupling inductance secondary is by diode D
2to electric capacity C
vLcharging, this state duration is D
sht
s, operation mode figure as shown in Figure 2.
Coupling inductance secondary N
3meet,
v
CVL＝v
N3_sh
According to turn ratio n and the v of coupling inductance
c1expression formula, can leakage inductance L be released
lkvoltage meet
(B): non-pass-through state 1
T
1during the moment, inverter bridge side enters effective vector state, inverter bridge can be equivalent to a current source, now diode D
inconducting, due to the existence of leakage inductance, flows through coupling inductance primary current i
l2reduce (C gradually
vLcapacitance is comparatively large, ignores the concussion process owing to oppositely causing), the current i of diode
d2linear reduction, until diode turns off after being reduced to zero, defining this stage is non-pass-through state 1, and operation mode figure as shown in Figure 3.If non-pass-through state 1 duration is D
nsh1t
s, capacitance voltage v
c1, v
c2and direct-current chain crest voltage v
pnmeet following relation
v
C1+v
C2＝v
pn
Leakage inductance L
lkthe voltage at two ends meets
(C): non-pass-through state 2
When coupling inductance primary current is reduced in secondary current equal and opposite in direction, diode D
2turn off, now, the former limit of coupling inductance, secondary series connection (now coupling inductance is with single inductive mode work), jointly for direct-current chain is powered, as shown in Figure 4, then can release now DC-link voltage expression formula is equivalent circuit diagram
According to inductance voltage-second balance, more than simultaneous various, direct-current chain crest voltage v can be released
pnat input average current i
in, straight-through duty ratio D
sh, leakage inductance L
lkwith the expression formula of turn ratio n be
The boosting unit Z-source inverter adopting the present embodiment to provide carries out emulation experiment, obtains following result: as input voltage V
dc=50V, straight-through duty ratio D
shwhen=0.18, second winding is 1.2 with the first winding turns ratio, the simulation waveform of load R=50 Ω as shown in Figure 5, Figure 6; As can be seen from the figure, when adopting less straight-through duty ratio, can obtain higher direct-current chain crest voltage, voltage gain is higher.The turn ratio arranges higher, and gain is higher.
As input voltage V
dc=200V, straight-through duty ratio D
sh=0, second winding is 1.2 with the first winding turns ratio, and simulation waveform during load R=50 Ω as shown in Figure 7.Now, the accurate Z source circuit of voltage lifting is not boosted, circuit working principle and common voltage source inverter similar, work in step-down state.
Visible, boosting unit Z-source inverter of the present invention, wide input voltage range, more traditional accurate Z-source inverter, conversion efficiency is high, has higher boosting characteristic when low pressure inputs.
Embodiment 2
Boosting unit Z-source inverter as shown in Figure 8, be another kind of execution mode provided by the invention, it comprises Z source structure, boosting unit and inverter bridge.This Z source structure comprises two groups of electric capacity, two groups of inductance, boosting units and is connected across a power diode of two groups of inductance capacitance mid points.Above-mentioned boosting unit comprises coupling inductance, electric capacity and power diode.Described coupling inductance comprises the first winding, the second winding, by arranging the turn ratio determination output voltage gain of the second winding and the first winding.In the present embodiment, the second inductance boosting unit in conventional Z source structure is replaced.
Specifically, the Z source structure that the present embodiment provides comprises: direct voltage source V
dc, the first inductance L
1, boosting unit, the first electric capacity C
1, the second electric capacity C
2and the first power diode D
in; Wherein: the first inductance L
1one end and the first electric capacity C
1one end, inverter bridge input cathode connect, the first inductance L
1the other end and the first power diode D
inanode and the second electric capacity C
2one end connect; First power diode D
innegative electrode and one end of boosting unit and the first electric capacity C
1the other end connect, the other end of boosting unit is connected with the second electric capacity other end and inverter bridge input anode connects.
Above-mentioned boosting unit comprises: coupling inductance, the 3rd electric capacity C
vL, the second power diode D
2; Described coupling inductance comprises the first winding L 3, second winding L 4.The Same Name of Ends of this first winding L 3 and the first power diode D
innegative electrode, the first electric capacity C
1one end connect, the different name end of the first winding L 3 and the 3rd electric capacity C
vLone end and the second power diode D
2anode connects, the 3rd electric capacity C
vLthe other end be connected with the second winding L 4 Same Name of Ends, the second power diode D
2negative electrode and different name end, the second electric capacity C of the second winding L 4
2the other end and direct voltage source V
dcnegative pole connects, direct voltage source V
dcpositive pole is connected with inverter bridge input anode.
Inverter bridge comprises: the first brachium pontis, the second brachium pontis, the 3rd brachium pontis; Wherein, the first brachium pontis comprises the power switch tube S of series connection
1and S
2, the second brachium pontis comprises the power switch tube S of series connection
3and S
4, the 3rd brachium pontis comprises the power switch tube S of series connection
5and S
6, pipe S on described first, second, third brachium pontis
1, S
3, S
5anode be inverter bridge input anode, with direct voltage source V
dcpositive pole is connected, pipe S on described first, second, third brachium pontis
2, S
4, S
6negative electrode be inverter bridge input cathode, with the first inductance L
1one end, the first electric capacity C
1one end connects.
The brachium pontis mid point of the first brachium pontis, the second brachium pontis, the 3rd brachium pontis is inverter output end, and filter inductance and filter capacitor are connected with output, and load is attempted by filter capacitor.
Embodiment 3
Boosting unit Z-source inverter as shown in Figure 9, comprises Z source structure, boosting unit and inverter bridge.Described Z source structure comprises two groups of electric capacity, two groups of inductance, boosting units and is connected across direct voltage source and a power diode of two groups of inductance capacitance mid points.Described boosting unit comprises coupling inductance and electric capacity and power diode, and coupling inductance comprises the first winding, the second winding, by arranging the turn ratio determination output voltage gain of the second winding and the first winding.
Specifically, the Z source structure that the present embodiment provides comprises: direct voltage source V
dc, the first inductance L
1, the second inductance L
2, the first electric capacity C
1, the second electric capacity C
2and the first power diode D
in; Wherein: the first inductance L
1one end and the first electric capacity C
1one end, inverter bridge negative terminal connect, the first inductance L
1the other end and direct voltage source V
dcnegative pole and the second electric capacity C
2one end connect; Direct voltage source V
dcpositive pole and the first power diode D
inanode connects, the first power diode D
innegative electrode and one end of boosting unit and the first electric capacity C
1the other end connect, the other end of boosting unit is connected with the second electric capacity other end and inverter bridge anode.
Above-mentioned boosting unit comprises: coupling inductance, the 3rd electric capacity C
vL, the second power diode D
2; Described coupling inductance comprises the first winding L 3, second winding L 4.The Same Name of Ends of described first winding L 3 and the first power diode D
innegative electrode, the first electric capacity C
1one end connect, the different name end of the first winding L 3 and the 3rd electric capacity C
vLone end, the second power diode D
2anode connects, the 3rd electric capacity C
vLthe other end be connected with the second winding L 4 Same Name of Ends, the second winding L 4 different name end connects the second power diode D
2negative electrode, the second electric capacity C
2the other end and inverter bridge input anode connect.
Inverter bridge comprises: the first brachium pontis, the second brachium pontis, the 3rd brachium pontis; Wherein, the first brachium pontis comprises the power switch tube S of series connection
1and S
2, the second brachium pontis comprises the power switch tube S of series connection
3and S
4, the 3rd brachium pontis comprises the power switch tube S of series connection
5and S
6, pipe S on described first, second, third brachium pontis
1, S
3, S
5anode be the anode of inverter bridge, be connected with the different name end of the second winding L 4 and the second electric capacity C2 other end, pipe S on described first, second, third brachium pontis
2, S
4, S
6negative electrode be the negative terminal of inverter bridge, with the first inductance L
1one end, the first electric capacity C
1one end connects.
The brachium pontis mid point of the first brachium pontis, the second brachium pontis, the 3rd brachium pontis is inverter output end, and filter inductance and filter capacitor are connected with output, and load is attempted by filter capacitor.
The analytic process of example 2 and example 3 and method are with reference to example 1.Be understandable that, for those of ordinary skills, can be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, and all these change or replace the protection range that all should belong to the claim appended by the present invention.
Claims (6)
1. a boosting unit Z-source inverter, comprise the Z source structure and inverter bridge that connect successively, it is characterized in that: in described Z source structure, be provided with a boosting unit, described boosting unit comprises coupling inductance, the 3rd electric capacity and the second power diode, wherein coupling inductance comprises the first winding and second winding of forward series connection, the different name end of the first winding is connected with one end of the 3rd electric capacity and the second power diode anode, the Same Name of Ends of the second winding is connected with the other end of the 3rd electric capacity, and the different name end of the second winding is connected with the second power diode negative electrode.
2. a kind of boosting unit Z-source inverter according to claim 1, is characterized in that: described Z source structure also comprises direct voltage source, the first inductance, the first electric capacity, the second electric capacity and the first power diode; Wherein,
One end of first inductance is connected with direct voltage source positive pole, and the other end is connected with the anode of the first power diode and one end of the second electric capacity; The negative electrode of the first power diode is connected with the Same Name of Ends of the first winding in boosting unit and one end of the first electric capacity, the other end of the first electric capacity is connected with direct voltage source negative pole, inverter bridge input cathode, and in the other end of the second electric capacity and boosting unit, the different name end of the second winding is connected with inverter bridge input anode.
3. a kind of boosting unit Z-source inverter according to claim 1, is characterized in that: described Z source structure also comprises direct voltage source, the first inductance, the first electric capacity, the second electric capacity and the first power diode; Wherein,
One end of first inductance is connected with one end of the first electric capacity, inverter bridge input cathode, and the other end of the first inductance is connected with one end of the anode of the first power diode and the second electric capacity; The negative electrode of the first power diode is connected with the Same Name of Ends of the first winding in boosting unit and the other end of the first electric capacity, in boosting unit, the different name end of the second winding is connected with the second electric capacity other end and is connected with direct voltage source negative pole, and direct voltage source positive pole is connected to inverter bridge input anode.
4. a kind of boosting unit Z-source inverter according to claim 1, is characterized in that: described Z source structure also comprises direct voltage source, the first inductance, the first electric capacity, the second electric capacity and the first power diode; Wherein,
One end of first inductance is connected with one end of the first electric capacity, inverter bridge input cathode, the other end of the first inductance is connected with one end of the negative pole of direct voltage source and the second electric capacity, the positive pole of direct voltage source is connected with the first power diode anode, the negative electrode of the first power diode is connected with the Same Name of Ends of the first winding in boosting unit and the other end of the first electric capacity, and in boosting unit, the different name end of the second winding is connected with the other end of inverter bridge input anode and the second electric capacity.
5. according to a kind of boosting unit Z-source inverter described in claim 2 to 4, it is characterized in that: described inverter bridge comprises three brachium pontis, first brachium pontis to be connected first, second power switch pipe, series connection the 3rd, the 4th power switch pipe on second brachium pontis, the 5th, the 6th power switch pipe that the 3rd brachium pontis is connected; Wherein, the anode of the first, the 3rd, the 5th power switch pipe is connected to inverter bridge input anode, and the negative electrode of the second, the 4th, the 6th power switch pipe is connected to inverter bridge input cathode.
6. a kind of boosting unit Z-source inverter according to claim 5, is characterized in that: described power switch pipe is metal-oxide-semiconductor or IGBT pipe.
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| CN105406751A (en) * | 2015-12-30 | 2016-03-16 | 哈尔滨工业大学 | Three-winding coupling inductance type Z-source inverter circuit with high step-up ratio ability |
| CN107517016A (en) * | 2017-08-31 | 2017-12-26 | 哈尔滨工业大学 | With the high step-up ratio Y source inventers for suppressing the influence of coupling inductance leakage inductance |
| CN107612404A (en) * | 2017-10-09 | 2018-01-19 | 哈尔滨工业大学 | Γ source inventers and modulator approach based on switching capacity |
| CN107681908A (en) * | 2017-10-09 | 2018-02-09 | 哈尔滨工业大学 | The quasi- Z-source inverter of coupling inductance and its modulator approach based on voltage capacitance again |
| CN107612404B (en) * | 2017-10-09 | 2019-07-02 | 哈尔滨工业大学 | Γ source inventer and modulator approach based on switching capacity |
| CN109687752A (en) * | 2018-12-30 | 2019-04-26 | 盐城工学院 | A kind of DC communication electric power conversion apparatus |
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| CN109756140A (en) * | 2019-01-17 | 2019-05-14 | 哈尔滨工业大学 | A kind of Y source inventer with raising step-up ratio |
| CN110165915B (en) * | 2019-04-12 | 2024-01-12 | 南京信息工程大学 | Novel voltage-multiplying-Z source inverter |
| CN110165915A (en) * | 2019-04-12 | 2019-08-23 | 青岛理工大学 | A kind of novel multiplication of voltage-Z-source inverter |
| CN110768552A (en) * | 2019-11-08 | 2020-02-07 | 东北电力大学 | Double-coil coupling inductance type impedance source inverter for inhibiting DC link voltage peak |
| CN111130374A (en) * | 2019-12-12 | 2020-05-08 | 东北电力大学 | T source inverter with low direct-current link voltage spike |
| CN111130374B (en) * | 2019-12-12 | 2021-07-27 | 东北电力大学 | T source inverter with low direct-current link voltage spike |
| CN112072942A (en) * | 2020-09-28 | 2020-12-11 | 青岛理工大学 | Improved switch coupling inductor quasi Z source inverter |
| CN113922690A (en) * | 2021-08-16 | 2022-01-11 | 青岛理工大学 | Improved three-coupling-inductor quasi-Z-source boost inverter and control method |
| CN113922690B (en) * | 2021-08-16 | 2023-11-07 | 青岛理工大学 | Improved three-coupling inductance quasi-Z source boost inverter and control method |
| CN114900029A (en) * | 2022-05-09 | 2022-08-12 | 南京航空航天大学 | Single-phase single-stage coupling inductance type split source boost inverter and method thereof |
| CN115642799A (en) * | 2022-11-08 | 2023-01-24 | 东北电力大学 | High-gain coupling inductance Z-source direct-current boost converter and control method |
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