CN115765447B - Dual-coupling inductance series direct current boost converter and control method - Google Patents
Dual-coupling inductance series direct current boost converter and control method Download PDFInfo
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- CN115765447B CN115765447B CN202211394966.9A CN202211394966A CN115765447B CN 115765447 B CN115765447 B CN 115765447B CN 202211394966 A CN202211394966 A CN 202211394966A CN 115765447 B CN115765447 B CN 115765447B
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Abstract
The invention provides a double-coupling inductance series direct current boost converter and a control method. Belongs to the technical field of power electronic converters. The double-coupling inductance series direct current boost converter comprises a direct current voltage source, two identical coupling inductance units and a direct current converter output unit. The DC converter output unit consists of an output diode, an output capacitor and a load. The dual-coupling inductance series direct current boost converter greatly improves voltage gain.
Description
Technical Field
The invention belongs to the technical field of power electronic converters, and particularly relates to a double-coupling inductance series direct current boost converter and a control method thereof.
Background
The boost converter is widely applied to a front-stage converter of a distributed power system to realize the boost function. The traditional Boost converter circuit topology is a Boost circuit, in theory, the voltage gain of the Boost circuit increases along with the increase of the duty ratio, however, in consideration of the parasitic equivalent series impedance in the actual circuit, the actual gain of the Boost circuit does not always become larger along with the increase of the duty ratio, so that the Boost capability of the Boost circuit is very limited, and the Boost circuit is not suitable for the occasion of high-voltage gain direct current power conversion.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a double-coupling inductance series direct current boost converter and a control method.
The invention is realized by the following technical scheme, the invention provides a double-coupling inductance series direct current boost converter, which comprises: DC voltage source V in Diode D 3 Coupled inductor winding N 1 Coupled inductor winding N 3 Coupled inductor winding N 4 Coupled inductor winding N 2 DiodeD 1 Diode D 2 Power switch S, output diode D o Output capacitance C o And a resistor R;
DC voltage source V in Positive electrode of (D) and diode D 3 Positive pole of (a) and coupled inductance winding N 1 The positive electrode of diode D is connected with 3 Is coupled to the cathode of the inductor winding N 3 Positive pole of (a) and coupled inductance winding N 4 Is connected with the cathode of the coupling inductance winding N 1 Is coupled to the cathode of the inductor winding N 2 Positive electrode of (D) and diode D 1 Is connected with the positive electrode of the battery; coupling inductance winding N 2 Cathode and diode D of (2) 2 The positive electrode of diode D is connected with 2 Cathode of (a) and coupled inductor winding N 4 Is connected with the positive electrode of the battery; diode D 1 Is coupled to the cathode of the inductor winding N 3 Cathode of power switch S, drain of power switch S and output diode D o Is connected with the positive electrode of the battery; output diode D o Cathode and output capacitance C of (2) o The positive electrode of (C) is connected with one end of the resistor R, and the capacitor C is output o The other end of the resistor R, the source of the power switch S, the DC voltage source V in Is connected to the cathode of the battery.
The invention provides a control method of a double-coupling inductance series direct current boost converter, which comprises the following steps of gs Controlling the on-off of the power switch S; the whole control process is divided into 4 switching modes, namely a switching mode 1, a switching mode 2, a switching mode 3 and a switching mode 4.
Further, the switching mode 1 corresponds to a time period [ t ] 1 ,t 2 ]At this stage, the power switch S is turned on, the DC voltage V in Through diode D 1 To the coupled inductor winding N 1 Charging; at the same time, direct current voltage V in Through diode D 3 To the coupled inductor winding N 3 Charging, coupling inductance winding N due to magnetic induction principle 4 Causes diode D 2 Reverse bias cut-off; output diode D o Reverse bias, output capacitance C o The load resistor R is independently powered and mode 1 ends.
Further, the method comprises the steps of,switching mode 2, corresponding to time period [ t ] 2 ,t 3 ]At this stage, the power switch S is turned off, the DC voltage V in Parasitic capacitance for power switch and two coupling inductance windings N 1 、N 3 Charging, modality 2 ends.
Further, the switching mode 3 corresponds to a time period [ t ] 3 ,t 4 ]The power switch S is kept off, and the diode D 1 And D 3 Reverse bias cut-off, DC voltage V in And two coupled inductance windings N 1 、N 2 、N 3 、N 4 Through the output diode D o For load resistor R and output capacitor C o Supplying power when two coupled inductor winding currents i N1 、i N3 When it is minimized, modality 3 ends.
Further, the switching mode 4 corresponds to a time period [ t ] 4 ,t 5 ]Or [ t ] 0 ,t 1 ]The power switch tube S is turned on, and the direct current voltage V in And two coupled inductance windings N 1 、N 2 、N 3 、N 4 Through the output diode D o For load resistor R and output capacitor C o Supplying power; at the same time, the parasitic capacitance of the power switch S discharges, and when the energy release is completed, the mode 4 ends.
Further, the gain expression obtainable according to the above-described modal control is:
wherein D is the on duty ratio of the power switch tube S, the working range is (0, 1), the turn ratio of the two coupling inductors is n 1 ＝N 2 :N 1 And n 2 ＝N 4 :N 3 。
Drawings
FIG. 1 is a circuit diagram of a dual-coupled inductor series DC boost converter;
FIG. 2 is a main waveform diagram of a dual-coupled inductor series DC boost converter;
FIG. 3 is a diagram of an equivalent circuit for each mode; wherein (a) is an equivalent circuit diagram of a switching mode 1 of the dual-coupling inductance series direct current boost converter; (b) An equivalent circuit diagram of a switching mode 2 of the double-coupling inductance series direct current boost converter; (c) An equivalent circuit diagram of a switching mode 3 of the double-coupling inductance series direct current boost converter; (d) An equivalent circuit diagram of a switching mode 4 of the double-coupling inductance series direct current boost converter;
FIG. 4 shows the voltage V in =50v, output voltage V o Experimental waveform at=250v.
The reference numerals in the figures illustrate: v (V) in Is a direct-current voltage source, S is a power switch tube, D 1 Is a first diode, D 2 Is a second diode D 3 Is a third diode D o For the output diode, C o Is output capacitance, R is load resistance, N 1 、N 2 To couple two windings of the inductance, N 3 、N 4 Two windings of another coupling inductance, the turns ratio of the two coupling inductances being n respectively 1 ＝N 2 :N 1 And n 2 ＝N 4 :N 3 。
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a double-coupling inductance series direct current boost converter, and belongs to the technical field of power electronic converters. The double-coupling inductance series direct current boost converter comprises a direct current voltage source, two identical coupling inductance units and a direct current converter output unit. The DC converter output unit consists of an output diode, an output capacitor and a load resistor. The dual-coupling inductance series direct current boost converter greatly improves voltage gain.
With reference to FIG. 1, the present inventionThe invention particularly provides a double-coupling inductance series direct current boost converter, which comprises the following components: DC voltage source V in Diode D 3 Coupled inductor winding N 1 Coupled inductor winding N 3 Coupled inductor winding N 4 Coupled inductor winding N 2 Diode D 1 Diode D 2 Power switch S, output diode D o Output capacitance C o And a resistor R;
DC voltage source V in Positive electrode of (D) and diode D 3 Positive pole of (a) and coupled inductance winding N 1 The positive electrode of diode D is connected with 3 Is coupled to the cathode of the inductor winding N 3 Positive pole of (a) and coupled inductance winding N 4 Is connected with the cathode of the coupling inductance winding N 1 Is coupled to the cathode of the inductor winding N 2 Positive electrode of (D) and diode D 1 Is connected with the positive electrode of the battery; coupling inductance winding N 2 Cathode and diode D of (2) 2 The positive electrode of diode D is connected with 2 Cathode of (a) and coupled inductor winding N 4 Is connected with the positive electrode of the battery; diode D 1 Is coupled to the cathode of the inductor winding N 3 Cathode of power switch S, drain of power switch S and output diode D o Is connected with the positive electrode of the battery; output diode D o Cathode and output capacitance C of (2) o The positive electrode of (C) is connected with one end of the resistor R, and the capacitor C is output o The other end of the resistor R, the source of the power switch S, the DC voltage source V in Is connected to the cathode of the battery.
The working principle and working process of the invention are as follows:
the invention provides a control method of a double-coupling inductance series direct current boost converter, which comprises the following steps of gs Controlling the on-off of the power switch S; the whole control process is divided into 4 switching modes, namely a switching mode 1, a switching mode 2, a switching mode 3 and a switching mode 4. Winding current i of two coupled inductances N1 、i N2 、i N3 、i N4 Diode D 1 Voltage V of (2) D1 Diode D 2 Voltage V of (2) D2 Diode D 3 Voltage V of (2) D3 Output diode D o Voltage V of (2) Do Voltage V of power switch S S As shown in fig. 2, the entire control process is specifically described as follows:
Switching mode 2, corresponding to time period [ t ] in FIG. 2 2 ,t 3 ]The equivalent circuit is shown in FIG. 3 (b), at which stage the power switch S is turned off, DC voltage V in Parasitic capacitance for power switch and two coupling inductance windings N 1 、N 3 Charging, modality 2 ends.
Switching mode 3, corresponding to time period [ t ] in FIG. 2 3 ,t 4 ]As shown in fig. 3 (c), the equivalent circuit is that the power switch tube S is kept off, and the diode D 1 And D 3 Reverse bias cut-off, DC voltage V in And two coupled inductance windings N 1 、N 2 、N 3 、N 4 Through the output diode D o For load resistor R and output capacitor C o Supplying power when two coupled inductor winding currents i N1 、i N3 When it is minimized, modality 3 ends.
Switching mode 4, corresponding to time period [ t ] in FIG. 2 4 ,t 5 ]Or [ t ] 0 ,t 1 ]As shown in FIG. 3 (d), the equivalent circuit is that the power switch tube S is turned on, and the DC voltage V in And two coupled inductance windings N 1 、N 2 、N 3 、N 4 Through the output diode D o For load resistor R and output capacitor C o Supplying power; at the same time, parasitic capacitance of power switch S dischargesWhen the energy release is completed, modality 4 ends.
The gain expression obtained according to the above-described mode control is:
wherein D is the on duty ratio of the power switch tube S, the working range is (0, 1), the turn ratio of the two coupling inductors is n 1 ＝N 2 :N 1 And n 2 ＝N 4 :N 3 。
The following data through specific experiments illustrate the beneficial effects of the structure of the invention:
as shown in fig. 4, the input voltage V in =50v, output voltage V o ＝250V，n 1 ＝n 2 =2, d=0.4, load resistance r=250Ω. Fig. 4 (a) shows an output capacitor voltage of about 250V and an input voltage of 50V. FIG. 4 (b) shows the output diode voltage peak of about 250V and diode D o The voltage peak is about 250V. FIG. 4 (c) shows a diode D 1 (D 3 ) Voltage peak about 166V, diode D 1 The voltage peak is about 250V. FIG. 4 (d) shows a coupled inductor winding N 1 (N 3 ) Current and coupled inductor winding N 2 (N 4 ) A current. As can be seen from the figure, the dual-coupled inductor series dc boost converter has a higher output gain.
The above description has been made in detail of a dual-coupling inductance series dc boost converter and control method, and specific examples are applied to illustrate the principles and embodiments of the present invention, and the above description of the examples is only for helping to understand the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (2)
1. A dual-coupling inductance series DC boost converter is characterized in thatThe transducer specifically includes: DC voltage source V in Diode D 3 Coupled inductor winding N 1 Coupled inductor winding N 3 Coupled inductor winding N 4 Coupled inductor winding N 2 Diode D 1 Diode D 2 Power switch tube S, output diode D o Output capacitance C o And a resistor R;
DC voltage source V in Positive electrode of (D) and diode D 3 Positive pole of (a) and coupled inductance winding N 1 The positive electrode of diode D is connected with 3 Is coupled to the cathode of the inductor winding N 3 Positive pole of (a) and coupled inductance winding N 4 Is connected with the cathode of the coupling inductance winding N 1 Is coupled to the cathode of the inductor winding N 2 Positive electrode of (D) and diode D 1 Is connected with the positive electrode of the battery; coupling inductance winding N 2 Cathode and diode D of (2) 2 The positive electrode of diode D is connected with 2 Cathode of (a) and coupled inductor winding N 4 Is connected with the positive electrode of the battery; diode D 1 Is coupled to the cathode of the inductor winding N 3 Cathode of power switch tube S, drain electrode of power switch tube S and output diode D o Is connected with the positive electrode of the battery; output diode D o Cathode and output capacitance C of (2) o The positive electrode of (C) is connected with one end of the resistor R, and the capacitor C is output o The other end of the resistor R, the source of the power switch tube S, and the DC voltage source V in Is connected with the cathode of the battery;
the gain expression available according to the modal control is:
wherein D is the on duty ratio of the power switch tube S, the working range is (0, 1), N 1 、N 2 To couple two windings of the inductance, N 3 、N 4 For two windings of another coupling inductance, the turns ratio of the two coupling inductances is n 1 ＝N 2 :N 1 And n 2 ＝N 4 :N 3 。
2. A control method of a dual-coupled-inductor series dc boost converter as claimed in claim 1, characterized in that the dual-coupled-inductor series dc boost converter control signal V gs Controlling the on-off of the power switch tube S; the whole control process is divided into 4 switching modes, namely a switching mode 1, a switching mode 2, a switching mode 3 and a switching mode 4;
switching mode 1, corresponding to time period [ t ] 1 ,t 2 ]At this stage, the power switch S is turned on, the DC voltage source V in Through diode D 1 To the coupled inductor winding N 1 Charging; at the same time, DC voltage source V in Through diode D 3 To the coupled inductor winding N 3 Charging, coupling inductance winding N due to magnetic induction principle 4 Causes diode D 2 Reverse bias cut-off; output diode D o Reverse bias, output capacitance C o The resistor R is independently powered, and the switching mode 1 is ended;
switching mode 2, corresponding to time period [ t ] 2 ,t 3 ]At this stage, the power switch S is turned off, the DC voltage source V in Parasitic capacitance for power switch tube and two coupling inductance windings N 1 、N 3 Charging, and ending the switching mode 2;
switching mode 3, corresponding to time period [ t ] 3 ,t 4 ]The power switch S is kept off, and the diode D 1 And D 3 Reverse bias cut-off, DC voltage source V in And four coupled inductor windings N 1 、N 2 、N 3 、N 4 Through the output diode D o A feed resistor R and an output capacitor C o Supplying power when two coupled inductor winding currents i N1 、i N3 When the switching mode is reduced to the lowest, the switching mode 3 is ended;
switching mode 4, corresponding to time period [ t ] 4 ,t 5 ]Or [ t ] 0 ,t 1 ]The power switch tube S is turned on, and the direct-current voltage source V in And four coupled inductor windings N 1 、N 2 、N 3 、N 4 Through the output diode D o A feed resistor R and an output capacitor C o Supplying power; at the same time, powerThe parasitic capacitance of the switching tube S discharges, and when the energy release is finished, the switching mode 4 is finished.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595778A (en) * | 2004-06-19 | 2005-03-16 | 燕山大学 | Magnetism integration DC/DC conversion boosting type transmission ratio expander circuit and high booster circuit |
| CN103997248A (en) * | 2014-06-03 | 2014-08-20 | 青岛理工大学 | Switch coupling inductor soft switching single-stage boost inverter with high voltage gain |
| CN104702105A (en) * | 2015-04-01 | 2015-06-10 | 哈尔滨工业大学 | Boost converter for similar active switch inductance network |
| CN104967329A (en) * | 2015-07-20 | 2015-10-07 | 哈尔滨工业大学 | Switch coupled inductor-type dual-bootstrap three-level zeta converter |
| CN105119487A (en) * | 2015-09-23 | 2015-12-02 | 青岛理工大学 | Coupling inductance boost conversion device with a switched inductor |
| CN205647259U (en) * | 2016-03-30 | 2016-10-12 | 中山大学 | Be applied to photovoltaic inverter's big gain DCDC converter |
| CN109039067A (en) * | 2018-09-25 | 2018-12-18 | 哈尔滨工业大学 | A kind of times die mould three winding coupling inductance high-gain DC converter |
| CN211183828U (en) * | 2019-11-01 | 2020-08-04 | 青岛理工大学 | Improved CMVR-II voltage-boosting inverter |
| CN111541369A (en) * | 2020-04-30 | 2020-08-14 | 南京理工大学 | Staggered parallel DC/DC boost converter based on switch inductor/switch capacitor unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7768243B2 (en) * | 2007-02-02 | 2010-08-03 | Stmicroelectronics S.A. | Aid for the switching of a switched-mode converter |
-
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- 2022-11-08 CN CN202211394966.9A patent/CN115765447B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595778A (en) * | 2004-06-19 | 2005-03-16 | 燕山大学 | Magnetism integration DC/DC conversion boosting type transmission ratio expander circuit and high booster circuit |
| CN103997248A (en) * | 2014-06-03 | 2014-08-20 | 青岛理工大学 | Switch coupling inductor soft switching single-stage boost inverter with high voltage gain |
| CN104702105A (en) * | 2015-04-01 | 2015-06-10 | 哈尔滨工业大学 | Boost converter for similar active switch inductance network |
| CN104967329A (en) * | 2015-07-20 | 2015-10-07 | 哈尔滨工业大学 | Switch coupled inductor-type dual-bootstrap three-level zeta converter |
| CN105119487A (en) * | 2015-09-23 | 2015-12-02 | 青岛理工大学 | Coupling inductance boost conversion device with a switched inductor |
| CN205647259U (en) * | 2016-03-30 | 2016-10-12 | 中山大学 | Be applied to photovoltaic inverter's big gain DCDC converter |
| CN109039067A (en) * | 2018-09-25 | 2018-12-18 | 哈尔滨工业大学 | A kind of times die mould three winding coupling inductance high-gain DC converter |
| CN211183828U (en) * | 2019-11-01 | 2020-08-04 | 青岛理工大学 | Improved CMVR-II voltage-boosting inverter |
| CN111541369A (en) * | 2020-04-30 | 2020-08-14 | 南京理工大学 | Staggered parallel DC/DC boost converter based on switch inductor/switch capacitor unit |
Non-Patent Citations (1)
| Title |
|---|
| 基于双耦合电感高增益二次型Boost变换器;田东豪等;电工电能新技术;第40卷(第8期);22-31 * |
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