CN208424201U - A kind of BOOST converter with switched inductors structure - Google Patents
A kind of BOOST converter with switched inductors structure Download PDFInfo
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- CN208424201U CN208424201U CN201821203264.7U CN201821203264U CN208424201U CN 208424201 U CN208424201 U CN 208424201U CN 201821203264 U CN201821203264 U CN 201821203264U CN 208424201 U CN208424201 U CN 208424201U
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- rectifier diode
- power switch
- output filter
- filter capacitor
- unidirectional rectifier
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- 238000004804 winding Methods 0.000 claims abstract description 38
- 239000003990 capacitor Substances 0.000 claims description 37
- 230000008878 coupling Effects 0.000 claims description 19
- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 230000005611 electricity Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Abstract
本实用新型公开了一种具有开关电感结构的BOOST变换器，包括一个直流输入源，两个功率开关管，一个带有两个绕组的耦合电感器，五个单向整流二极管，两个输出滤波电容。与现有BOOST变换器相比，本实用新型的一种具有开关电感结构的新型BOOST变换器在相同占空比的情况下，具有更大的升压变比，功率开关管电压应力低，控制策略简单，电流纹波低，体积小的特点。
The utility model discloses a BOOST converter with a switched inductance structure, which comprises a direct current input source, two power switch tubes, a coupled inductor with two windings, five unidirectional rectifier diodes, and two output filter diodes. capacitance. Compared with the existing BOOST converter, the novel BOOST converter with a switched inductance structure of the present utility model has a larger boost-to-transform ratio under the condition of the same duty cycle, the voltage stress of the power switch tube is low, and the control The strategy is simple, the current ripple is low, and the volume is small.
Description
Technical field
The utility model relates to a kind of DC-DC converter, specifically a kind of BOOST with switched inductors structure becomes
Parallel operation.
Background technique
BOOST DC converter along with using sun-generated electric power, wind-power electricity generation, fuel cell as the novel power supply of representative and
Get up using electrochmical power source, super capacitor as the development of the electric energy storage device of representative, and will be with this kind of pollution-free
The extensive use of power supply and obtain extensively send out application.Wherein photovoltaic power generation and its grid-connected system obtain the extensive concern of people.?
In these micro-grid systems and grid-connected system, every kind of energy form is required to a BOOST converter, so needing input voltage model
Enclose higher BOOST converter.But although existing BOOST converter has stable output voltage, but there is also knots
The defects of structure is complicated, higher cost, and power device voltage stress is high, current ripples are big, and volume is big.
Utility model content
The utility model is directed to above-mentioned problems of the prior art, provides a kind of with switched inductors structure
BOOST converter solves the problems, such as that voltage gain is low in the prior art, current ripples are big, power device voltage stress is big.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of BOOST converter with switched inductors structure, anode and the one-way commutation diode of direct-current input power supplying V
The anode of D1, the Same Name of Ends of the winding L1 of coupling inductor are connected, the cathode of one-way commutation diode D1 and two pole of one-way commutation
The cathode of pipe D2, the winding L2 of coupling inductor Same Name of Ends be connected, the other end of the winding L1 of coupling inductor with it is unidirectionally whole
Flow diode D2, the anode of one-way commutation diode D3 is connected, the other end and one-way commutation two of the winding L2 of coupling inductor
The anode of pole pipe D4, the drain electrode of power switch tube S 1, the cathode of one-way commutation diode D3 are connected, the cathode of rectifier diode D4
It is connected with one end of output filter capacitor C1, the other end of output filter capacitor C1 is connected with one end of output filter capacitor C2,
The source electrode of power switch tube S 1 is connected with the drain electrode of power switch tube S 2, the source electrode and one-way commutation diode of power switch tube S 2
The cathode of D5, the cathode of direct-current input power supplying V are connected, and the anode of diode D5 is connected with the other end of output filter capacitor C2.
The utility model has the advantages of as follows:
There are four types of operating modes for the converter of the utility model: power switch tube S 1,2 conduction mode of power switch tube S, coupling
Winding L1, the winding L2 for closing inductor are in parallel, are in charged state, and output filter capacitor C1, output filter capacitor C2 are in and put
Electricity condition；Power switch tube S 1 is connected, 2 shutdown mode of power switch tube S, and winding L1, the winding L2 of coupling inductor are in parallel, place
In charged state, output filter capacitor C1, output filter capacitor C2 are in discharge condition；Power switch tube S 1 turns off, and power is opened
Pipe S2 conduction mode is closed, winding L1, the winding L2 of coupling inductor are in parallel, are in charged state, output filter capacitor C1, output
Filter capacitor C2 is in discharge condition；Power switch tube S 1,2 shutdown mode of power switch tube S, the winding L1 of coupling inductor,
Winding L2 series connection, is in discharge condition, output filter capacitor C1, output filter capacitor C2 are in charged state；
The utility model utilizes the intrinsic characteristic of switched inductors unit, in power switch tube conducting, coupling inductor
Winding parallel energy storage；In power switch tube shutdown, the windings in series electric discharge of coupling inductor, to realize output boosting, knot
Closing BOOST converter can reach the high-gain of output voltage.
Detailed description of the invention
Fig. 1 is a kind of topology diagram of novel B OOST converter with switched inductors structure of the utility model.
Fig. 2 is a kind of novel B OOST converter with switched inductors structure of the utility model, power switch tube (S1,
S2 modal graph) is connected.
Fig. 3 is a kind of novel B OOST converter with switched inductors structure of the utility model, power switch tube (S1)
Conducting, power switch tube (S2) turn off modal graph.
Fig. 4 is a kind of novel B OOST converter with switched inductors structure of the utility model, power switch tube (S1)
Modal graph is connected in shutdown, power switch tube (S2).
Fig. 5 is a kind of novel B OOST converter with switched inductors structure of the utility model, power switch tube (S1,
S2 modal graph) is turned off.
Specific embodiment
Embodiment
As shown in Figure 1, a kind of BOOST converter with switched inductors structure, direct-current input power supplying V's is positive and unidirectional
The anode of rectifier diode D1, the Same Name of Ends of the winding L1 of coupling inductor are connected, the cathode and list of one-way commutation diode D1
Cathode, the Same Name of Ends of the winding L2 of coupling inductor to rectifier diode D2 is connected, and the winding L1's of coupling inductor is another
End be connected with the anode of one-way commutation diode D2, one-way commutation diode D3, the other end of the winding L2 of coupling inductor and
The anode of one-way commutation diode D4, the drain electrode of power switch tube S 1, the cathode of one-way commutation diode D3 are connected, rectify two poles
The cathode of pipe D4 is connected with one end of output filter capacitor C1, and the other end of output filter capacitor C1 is with output filter capacitor C2's
One end be connected, the source electrode of power switch tube S 1 is connected with the drain electrode of power switch tube S 2, the source electrode of power switch tube S 2 with unidirectionally
The cathode of rectifier diode D5, direct-current input power supplying V cathode be connected, the anode of diode D5 is another with output filter capacitor C2's
One end is connected.
The converter of the utility model is described in detail as follows respectively as shown in Fig. 2,3,4,5 there are four types of operating mode.
As shown in Fig. 2, power switch tube S 1,2 conduction mode of power switch tube S；In such a mode, one-way commutation diode
D1, one-way commutation diode D3 conducting, one-way commutation diode D2, one-way commutation diode D4, one-way commutation diode D5 are closed
Disconnected, output filter capacitor C1, output filter capacitor C2 are in discharge condition, power for load end.The inductance of coupling inductor around
Group L1, inductor winding L2 are in parallel, are in charged state, thereon electric current IL1, electric current IL2Rise.
As shown in figure 3, power switch tube S 1 is connected, power switch tube S 2 is turned off；In such a mode, one-way commutation diode
D1, one-way commutation diode D3, one-way commutation diode D5 conducting, one-way commutation diode D2, one-way commutation diode D4 are closed
Disconnected, output filter capacitor C1, output filter capacitor C2 are in charged state.Inductor winding L1, the inductor winding of coupling inductor
L2 is in parallel, is in charged state, thereon electric current IL1, electric current IL2Rise.
As shown in figure 4, power switch tube S 1 turns off, power switch tube S 2 is connected；In such a mode, one-way commutation diode
D1, one-way commutation diode D3, one-way commutation diode D4 conducting, one-way commutation diode D2, one-way commutation diode D5 are closed
Disconnected, output filter capacitor C1, output filter capacitor C2 are in charged state.Inductor winding L1, the inductor winding of coupling inductor
L2 is in parallel, is in charged state, thereon electric current IL1, electric current IL2Rise.
As shown in figure 5, power switch tube S 1,2 shutdown mode of power switch tube S；In such a mode, one-way commutation diode
D1, one-way commutation diode D3 shutdown, one-way commutation diode D2, one-way commutation diode D4, one-way commutation diode D5 are led
Logical, output filter capacitor C1, output filter capacitor C2 are in charged state.Inductor winding L1, the inductor winding of coupling inductor
L2 series connection, is in discharge condition, thereon electric current IL1, electric current IL2Decline.
A kind of novel B OOST converter with switched inductors structure of the utility model, in these four energy transmission moulds
Under state, the conversion of energy is completed, realizes that transformer configuration is simple, small in size, voltage gain is high, and current ripples are small, power device
The characteristics of voltage stress is small, long service life.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821203264.7U CN208424201U (en) | 2018-07-27 | 2018-07-27 | A kind of BOOST converter with switched inductors structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821203264.7U CN208424201U (en) | 2018-07-27 | 2018-07-27 | A kind of BOOST converter with switched inductors structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208424201U true CN208424201U (en) | 2019-01-22 |
Family
ID=65123466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821203264.7U Withdrawn - After Issue CN208424201U (en) | 2018-07-27 | 2018-07-27 | A kind of BOOST converter with switched inductors structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208424201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736707A (en) * | 2018-07-27 | 2018-11-02 | 国网辽宁省电力有限公司铁岭供电公司 | A kind of BOOST converter with switched inductors structure |
| WO2022062327A1 (en) * | 2020-09-28 | 2022-03-31 | 青岛理工大学 | Improved switched-coupled-inductor quasi-z-source inverter |
-
2018
- 2018-07-27 CN CN201821203264.7U patent/CN208424201U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736707A (en) * | 2018-07-27 | 2018-11-02 | 国网辽宁省电力有限公司铁岭供电公司 | A kind of BOOST converter with switched inductors structure |
| CN108736707B (en) * | 2018-07-27 | 2024-05-17 | 国网辽宁省电力有限公司铁岭供电公司 | A BOOST converter with a switched inductor structure |
| WO2022062327A1 (en) * | 2020-09-28 | 2022-03-31 | 青岛理工大学 | Improved switched-coupled-inductor quasi-z-source inverter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190122 Effective date of abandoning: 20240517 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190122 Effective date of abandoning: 20240517 |