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CN102769377A - A non-isolated inverter topology based on phase-shift control and its application - Google Patents

A non-isolated inverter topology based on phase-shift control and its application Download PDF

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Publication number
CN102769377A
CN102769377A CN2012102359645A CN201210235964A CN102769377A CN 102769377 A CN102769377 A CN 102769377A CN 2012102359645 A CN2012102359645 A CN 2012102359645A CN 201210235964 A CN201210235964 A CN 201210235964A CN 102769377 A CN102769377 A CN 102769377A
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voltage
capacitor
switch tube
output
circuit
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CN102769377B (en
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李武华
戴洁健
罗皓泽
何湘宁
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Hangzhou Ding Ding Technology Industry Co Ltd
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Zhejiang University ZJU
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Abstract

The invention provides a non-isolated variable flow topological structure based on phase shift control, comprising a switch capacitor circuit and a transformer circuit, wherein the switch capacitor circuit consists of two switching tubes, one high voltage capacitor, one resonant capacitor and one resonant inductor in a connection way; and the transformer circuit consists of two switching tubes, one high voltage capacitor and one filter inductor in a connection way. The invention also discloses a converter which adopts the topological structure. Through the control on the phase shift angles and the duty ratios of the various switching tubes, the control on the voltage balance of all the capacitors in the energy flowing direction and at the high voltage side is realized, and the adjustment of output voltage in a wide range, and the connection and disconnection of each switching tube with zero voltage are realized. With the adoption of a structure that multiple groups of switch capacitor circuits are connected in cascade, the converter disclosed by the invention realizes the output at a higher step-down ratio, so that the voltage stresses of all the components are reduced; and additionally, since the step-down ratio of the converter is further improved by the transformer circuit, not only is the voltage stress reduced, but also the adjustable output voltage is implemented.

Description

A kind of non-isolation type unsteady flow topological structure and application thereof based on phase shifting control
Technical field
The invention belongs to electric power Semiconductor Converting Technology field, be specifically related to a kind of non-isolation type unsteady flow topological structure and application thereof based on phase shifting control.
Background technology
In recent years, the pollution of shortage of energy sources and environment has become the focus in the world, and the development of regenerative resource and application receive the extensive concern of countries in the world.In renewable energy system; The electric energy that many regenerative resources are sent all is the lower direct current of voltage; And need the higher direct current of voltage to grid transmission; Therefore need DC-DC converter to convert low voltage and direct current into be fit to be incorporated into the power networks high-voltage direct-current electricity, so low input ripple, high-gain, high efficiency converter have important effect in regenerative resource is generated electricity by way of merging two or more grid systems the field; Some is lower with the operating voltage of electric loading simultaneously, also needs DC-DC converter to convert the high-voltage direct-current electricity into the low voltage and direct current that is fit to electric loading.
Traditional BUCK current transformer is as shown in Figure 1; It is simple in structure, be widely used, but the power switch pipe of this current transformer works in the hard switching state; The voltage stress of switching loss and power switch pipe is all bigger; And under the application scenario of high step-down ratio, the input side current fluctuation is bigger, and outlet side uses bigger series inductance then further to increase cost and volume and reduced efficient.
Traditional circuit of reversed excitation is as shown in Figure 2, and its topological structure can be realized high step-down ratio through transformer voltage ratio, but the transmission of all power all need be passed through magnetic core, has increased the current transformer volume to a certain extent and has brought the certain electromagnetic interference problem.
Occurred some switching capacity type current transformers in recent years in succession, this quasi-converter increases the soft switch that has the resonance phase-shift circuit to realize power switch pipe on the basis of equal die mould switching capacity code converter topology; Its typical resonant switch capacitance convertor topological structure is as shown in Figure 3; This topological structure has the advantage of Zero Current Switch; But the output voltage of resonant switch capacitance convertor is by the concrete topological structure decision of circuit; Can't pass through duty control output voltage recently, the adjustable extent of having limited to the current transformer output voltage, and energy can't two-way flow.
Summary of the invention
To the above-mentioned technological deficiency of existing in prior technology, the invention provides a kind of non-isolation type unsteady flow topological structure and application thereof based on phase shifting control, pressure drop ratio is high, and is simple in structure, and efficient is high, and Adjustable Output Voltage.
A kind of non-isolation type unsteady flow topological structure based on phase shifting control comprises a switched-capacitor circuit and a transforming circuit;
Described switched-capacitor circuit is by two switching tube S 1～S 2, a high-voltage capacitance C 1, a resonant capacitance C rWith a resonant inductance L rForm; Wherein, switching tube S 1Input and high-voltage capacitance C 1An end link to each other switching tube S 1Output and switching tube S 2Input resonant inductance L rAn end link to each other switching tube S 2Output and high-voltage capacitance C 1The other end link to each other resonant inductance L rThe other end and resonant capacitance C rAn end link to each other resonant capacitance C rThe other end link to each other with transforming circuit;
Described transforming circuit is by two switching tube S 3～S 4, a high-voltage capacitance C 2With a filter inductance L fForm; Wherein, switching tube S 3Input and high-voltage capacitance C 2An end and switched-capacitor circuit mesohigh capacitor C 1The other end link to each other switching tube S 3Output and switching tube S 4Input, filter inductance L fAn end and switched-capacitor circuit in resonant capacitance C rThe other end link to each other switching tube S 4Output and high-voltage capacitance C 2The other end link to each other;
Described control end of switching tube receives the control signal that external equipment provides.
High-voltage capacitance C 1An end and high-voltage capacitance C 2The other end constitute high-pressure side, filter inductance L fThe other end and high-voltage capacitance C 2The other end constitute low-pressure side;
When the high-pressure side as the input low-pressure side as when output, described filter inductance L fThe other end and high-voltage capacitance C 2The other end between be connected with output capacitance C Out
Described switching tube S 1The control signal and the switching tube S that receive 2The control signal phase place that receives is complementary and exist the dead band at interval; Switching tube S 3The control signal and the switching tube S that receive 4The control signal phase place that receives is complementary and exist the dead band at interval; Switching tube S 1The control signal and the switching tube S that receive 3The control signal duty ratio that receives is identical and have a phase shifting angle.
Preferably, described switching tube is a metal-oxide-semiconductor; The metal-oxide-semiconductor switching frequency is high, and device carries anti-and diode, and the topological structure volume that uses metal-oxide-semiconductor to make up is littler, and power density is high.
The principle of unsteady flow topological structure of the present invention is: through control switch pipe S 1Control signal and switching tube S 3The phase shifting angle of control signal realize that high-voltage capacitance is balanced and control with power flow direction; When phase shifting angle is 0, high-voltage capacitance C 1With high-voltage capacitance C 2Between transmission of power not, electric voltage equalization; As phase shifting angle (S greater than 0 time 1Have precedence over S 3Conducting), C 1To C 2Transmission of power, system is from the high side to low side transmission of power; As phase shifting angle (S less than 0 time 1Lag behind S 3Conducting), C 2To C 1Transmission of power, system from low-pressure side to the high-pressure side transmission of power.When the high side to low side through-put power, by capacitor C 2, switching tube S 3And S 4, filter inductance L fWith output capacitance C OutForm a BUCK circuit, the adjustment phase shifting angle can make C 2Last voltage is the half the of high-pressure side input voltage, and the low-pressure side output voltage is C 2Last voltage and S 1The product of the duty ratio D of control signal.When low-pressure side during to the high-pressure side through-put power, capacitor C 2, switching tube S 3And S 4With filter inductance L fForm a BOOST circuit, C 2Last voltage be the low-pressure side input voltage divided by duty ratio D, the adjustment phase shifting angle, can make on high-tension side output voltage is capacitor C 2The twice of voltage.
A kind of non-isolation type current transformer based on phase shifting control comprises a n switched-capacitor circuit and a transforming circuit, and n switched-capacitor circuit cascade successively forms, and n is the natural number greater than 1;
Described switched-capacitor circuit is by two switching tube S 1～S 2, a high-voltage capacitance C 1, a resonant capacitance C rWith a resonant inductance L rForm; Wherein, switching tube S 1Input and high-voltage capacitance C 1An end link to each other and be the first input end of switched-capacitor circuit, switching tube S 1Output and switching tube S 2Input resonant inductance L rAn end link to each other and be second input of switched-capacitor circuit, switching tube S 2Output and high-voltage capacitance C 1The other end link to each other and be first output of switched-capacitor circuit, resonant inductance L rThe other end and resonant capacitance C rAn end link to each other resonant capacitance C rThe other end be second output of switched-capacitor circuit;
First output of i-1 switched-capacitor circuit links to each other with the first input end of i switched-capacitor circuit, and second output of i-1 switched-capacitor circuit links to each other with second input of i switched-capacitor circuit, and i is natural number and 2≤i≤n;
Described transforming circuit is by two switching tube S 3～S 4, a high-voltage capacitance C 2With a filter inductance L fForm; Wherein, switching tube S 3Input and high-voltage capacitance C 2An end and first output of n switched-capacitor circuit link to each other switching tube S 3Output and switching tube S 4Input, filter inductance L fAn end and second output of n switched-capacitor circuit link to each other switching tube S 4Output and high-voltage capacitance C 2The other end link to each other;
Described control end of switching tube receives the control signal that external equipment provides.
The first input end of the 1st switched-capacitor circuit and high-voltage capacitance C 2The other end constitute high-pressure side, filter inductance L fThe other end and high-voltage capacitance C 2The other end constitute low-pressure side;
When the high-pressure side as the input low-pressure side as when output, described filter inductance L fThe other end and high-voltage capacitance C 2The other end between be connected with output capacitance C Out
Described switching tube S 1The control signal and the switching tube S that receive 2The control signal phase place that receives is complementary and exist the dead band at interval; Switching tube S 3The control signal and the switching tube S that receive 4The control signal phase place that receives is complementary and exist the dead band at interval; Switching tube S 1The control signal and the switching tube S that receive 3The control signal duty ratio that receives is identical and have a phase shifting angle.
The principle of current transformer of the present invention is: through control switch pipe S 1Control signal and switching tube S 3The phase shifting angle of control signal realize that high-voltage capacitance is balanced and control with power flow direction; When phase shifting angle is 0, transmission of power not between each high-voltage capacitance, system is transmission of power not also;
As phase shifting angle (S in the i-1 switched-capacitor circuit greater than 0 time 1Have precedence over S in the i switched-capacitor circuit 1Conducting, S in the 5th switched-capacitor circuit 1Have precedence over S 3Conducting), C in the i-1 switched-capacitor circuit 1C in the i switched-capacitor circuit 1Transmission of power, C in the 5th switched-capacitor circuit 1To C 2Transmission of power, system is from the high side to low side transmission of power;
As phase shifting angle (S in the i-1 switched-capacitor circuit less than 0 time 1Lag behind S in the i switched-capacitor circuit 1Conducting, S in the 5th switched-capacitor circuit 1Lag behind S 3Conducting), C in the i switched-capacitor circuit 1C in the i-1 switched-capacitor circuit 1Transmission of power, C 2C in the 5th switched-capacitor circuit 1Transmission of power, system from low-pressure side to the high-pressure side transmission of power.
When the high side to low side through-put power, by capacitor C 2, switching tube S 3And S 4, filter inductance L fWith output capacitance C OutForm a BUCK circuit, the adjustment phase shifting angle can make each high-voltage capacitance all press and is the 1/n+1 of high-pressure side input voltage, and the low-pressure side output voltage is C 2Last voltage and S 1The product of the duty ratio D of control signal, system's no-load voltage ratio are D/n+1.When low-pressure side during to the high-pressure side through-put power, capacitor C 2, switching tube S3 and S 4With filter inductance L fForm a BOOST circuit, C 2Last voltage be the low-pressure side input voltage divided by duty ratio D, the adjustment phase shifting angle, each high-voltage capacitance is all pressed, and on high-tension side output voltage is a capacitor C 2The n+1 of voltage times, system's no-load voltage ratio is n+1/D.
Unsteady flow structure of the present invention has realized the control of energy Flow direction and each capacitance voltage balance of high-pressure side through the control to phase shifting angle between transforming circuit and the switched-capacitor circuit; Through to going up the control of switching tube duty ratio in the circuit, realized the adjusting of output voltage wide region; Utilize the parasitic capacitance of switching tube can realize that the no-voltage of each switching tube turn-offs simultaneously; Utilize the method for resonant circuit phase shifting control, can realize that the no-voltage of each switching tube is open-minded.The higher step-down ratio output that the switched-capacitor circuit cascade structure has been realized converter is organized in current transformer utilization of the present invention more, reduces each device voltage stress, utilizes transforming circuit further to improve the step-down ratio of converter, reduces voltage stress, and realizes Adjustable Output Voltage.
Description of drawings
Fig. 1 is the structural representation of traditional B UCK convertor circuit.
Fig. 2 is the structural representation of traditional inverse-excitation type convertor circuit.
Fig. 3 is the structural representation of resonant switch electric capacity convertor circuit.
Fig. 4 is the sketch map of unsteady flow topological structure of the present invention.
The working waveform figure of Fig. 5 during for unsteady flow topological structure decompression mode of the present invention.
The working waveform figure of Fig. 6 during for unsteady flow topological structure boost mode of the present invention.
Fig. 7 is the structural representation of current transformer of the present invention.
Embodiment
In order to describe the present invention more particularly, technical scheme of the present invention is elaborated below in conjunction with accompanying drawing and embodiment.
As shown in Figure 4, a kind of non-isolation type unsteady flow topological structure based on phase shifting control comprises a switched-capacitor circuit and a transforming circuit;
Switched-capacitor circuit is by two switching tube S 1～S 2, a high-voltage capacitance C 1, a resonant capacitance C rWith a resonant inductance L rForm; Wherein, switching tube S 1Input and high-voltage capacitance C 1An end link to each other switching tube S 1Output and switching tube S 2Input resonant inductance L rAn end link to each other switching tube S 2Output and high-voltage capacitance C 1The other end link to each other resonant inductance L rThe other end and resonant capacitance C rAn end link to each other resonant capacitance C rThe other end link to each other with transforming circuit;
Transforming circuit is by two switching tube S 3～S 4, a high-voltage capacitance C 2, an output capacitance C OutWith a filter inductance L fForm; Wherein, switching tube S 3Input and high-voltage capacitance C 2An end and switched-capacitor circuit mesohigh capacitor C 1The other end link to each other switching tube S 3Output and switching tube S 4Input, filter inductance L fAn end and switched-capacitor circuit in resonant capacitance C rThe other end link to each other switching tube S 4Output and high-voltage capacitance C 2The other end link to each other; Filter inductance L fThe other end and high-voltage capacitance C 2The other end between be connected with output capacitance C Out
High-voltage capacitance C 1An end and high-voltage capacitance C 2The other end constitute high-pressure side and external high voltage power supply or high-voltage load, filter inductance L fThe other end and high-voltage capacitance C 2The other end constitute low-pressure side and external low-tension supply or low-voltage load.
Control end of switching tube receives the control signal that external equipment provides; In this execution mode, switching tube S 1The control signal and the switching tube S that receive 2The control signal phase place that receives is complementary and exist the dead band at interval; Switching tube S 3The control signal and the switching tube S that receive 4The control signal phase place that receives is complementary and exist the dead band at interval; Switching tube S 1The control signal and the switching tube S that receive 3The control signal duty ratio that receives is identical and have a phase shifting angle.
This execution mode is owing to the nature that need power on is all pressed, so C 1=C 2, switching tube employing N type metal-oxide-semiconductor and each switching tube parameter are basic identical.
When phase shifting angle is 0, resonant inductance L rElectric current is 0, C 1, C 2Between transmission of power not, electric voltage equalization;
As phase shifting angle (S greater than 0 time 1Have precedence over S 3), as shown in Figure 5, C 1To C 2Transmission of power, system is from high side to low side transmission of power, capacitor C 2, switching tube S 3And S 4, filter inductance L fWith output capacitance C OutForm a BUCK circuit, the adjustment phase shifting angle can make C 2Last voltage is the half the of high-pressure side input voltage, and the low-pressure side output voltage is C 2The product of last voltage and duty ratio D; Working state of system is following:
Stage 1 (t 0-t 1) S 1, S 2The dead band, S 1Parasitic capacitance discharge, S 2Parasitic capacitance charging; S 4Conducting, L fRelease energy to low-pressure side.S 2Have no progeny in the pass, resonant inductance L rTo S 1, S 2Contact is irritated electric current, because S 2Parasitic capacitance exist, so the S that flows through 2Electric current be zero, voltage slowly rises to V C1, realize soft shutoff.
Stages 2 (t 1-t 2) S 1, S 4Conducting, the high-pressure side begins to C rCharging.S 2Parasitic capacitance voltage rise to V C1After, S 1Parasitic anti-and diode current flow, its drain-source voltage is 0, opens switching tube S this moment 1, realize that promptly no-voltage is open-minded.
Stages 3 (t 2-t 3) S 1, S 4Conducting, C is given in the high-pressure side rCharging, C rElectric current just becomes, S 1Forward conduction.
Stages 4 (t 3-t 4) S 3, S 4The dead band, S 3Parasitic capacitance discharge, S 4Parasitic capacitance charging.S 4Have no progeny in the pass, resonant inductance L rTo S 3, S 4Contact is irritated electric current, because S 4Parasitic capacitance exist, so the S that flows through 4Electric current be zero, voltage slowly rises to V C2, realize soft shutoff.
Stages 5 (t 4-t 5) S 1, S 3Conducting, C rBegin to absorb C 1Energy, its electric current is bigger, C 1, C 2Between isolated island absorb electric charge.S 4Parasitic capacitance voltage rise to V C2After, S 3Parasitic anti-and diode current flow, its drain-source voltage is 0, opens switching tube S this moment 3, realize that promptly no-voltage is open-minded.
Stages 6 (t 5-t 6) S 1, S 3Conducting, C rContinue to absorb C 1Energy, its electric current reduces, C 1, C 2Between isolated island emit electric charge, S 3Forward conduction.
Stages 7 (t 6-t 7) S 1, S 2The dead band, S 2Parasitic capacitance discharge, S 1Parasitic capacitance charging.S 1Have no progeny in the pass, resonant inductance L rFrom S 1, S 2The contact absorbing current is because S 1Parasitic capacitance exist, so the S that flows through 1Electric current be zero, voltage slowly rises to V C2, realize soft shutoff.
Stages 8 (t 7-t 8) S 2, S 3Conducting, C rBegin to release energy.S 1Parasitic capacitance voltage rise to V C1After, S 2Parasitic anti-and diode current flow, its drain-source voltage is 0, opens switching tube S this moment 2, realize that promptly no-voltage is open-minded.
Stages 9 (t 8-t 9) S 2, S 3Conducting, C rContinue to release energy C rElectric current becomes negative, S 2Forward conduction.
Stages 10 (t 9-t 10) S 3, S 4The dead band, S 4Parasitic capacitance discharge, S 3Parasitic capacitance charging.S 3Have no progeny in the pass, resonant inductance L rFrom S 3, S 4The contact absorbing current is because S 3Parasitic capacitance exist, so the S that flows through 3Electric current be zero, voltage slowly rises to V C2, realize soft shutoff.
Stages 11 (t 10-t 11) S 2, S 4Conducting, C rGive C 2Release energy.S 3Parasitic capacitance voltage rise to V C2After, S 4Parasitic anti-and diode current flow, its drain-source voltage is 0, opens switching tube S this moment 4, realize that promptly no-voltage is open-minded;
As phase shifting angle (S less than 0 time 1Lag behind S 3), as shown in Figure 6, C 2To C 1Transmission of power, system from low-pressure side to high-pressure side transmission of power, capacitor C 2, switching tube S 3And S 4With filter inductance L fForm a BOOST circuit and (remove output capacitance C Out), C 2Last voltage be the low-pressure side input voltage divided by duty ratio D, the adjustment phase shifting angle, can make on high-tension side output voltage is capacitor C 2The twice of voltage; Working state of system is following:
Stage 1 (t 0-t 1) S 3, S 4The dead band, S 3Parasitic capacitance discharge, S 4Parasitic capacitance charging.S 4Have no progeny in the pass, resonant inductance L rTo S 3, S 4Contact is irritated electric current, because S 4Parasitic capacitance exist, so the S that flows through 4Electric current be zero, voltage slowly rises to V C2, realize soft shutoff.
Stages 2 (t 1-t 2) S 2, S 3Conducting, C rBegin to release energy to L rS 4Parasitic capacitance voltage rise to V C2After, S 3Parasitic anti-and diode current flow, its drain-source voltage is 0, opens switching tube S this moment 3, realize that promptly no-voltage is open-minded.
Stages 3 (t 2-t 3) S 2, S 3Conducting, C rContinue to release energy C rElectric current becomes negative, S 3Forward conduction.
Stages 4 (t 3-t 4) S 1, S 2The dead band, S 1Parasitic capacitance discharge, S 2Parasitic capacitance charging.S 2Have no progeny in the pass, resonant inductance L rTo S 1, S 2Contact is irritated electric current, because S 2Parasitic capacitance exist, so the S that flows through 2Electric current be zero, voltage slowly rises to V C1, realize soft shutoff.
Stages 5 (t 4-t 5) S 1, S 3Conducting, C rGive C 1Release energy L fElectric current is bigger, C 1, C 2Between isolated island absorb electric charge.S 2Parasitic capacitance voltage rise to V C1After, S 1Parasitic anti-and diode current flow, its drain-source voltage is 0, opens switching tube S this moment 1, realize that promptly no-voltage is open-minded.
Stages 6 (t 5-t 6) S 1, S 3Conducting, C rContinue to give C 1Release energy L fElectric current reduces, C 1, C 2Between isolated island emit electric charge.
Stages 7 (t 6-t 7) S 3, S 4The dead band, S 4Parasitic capacitance discharge, S 3Parasitic capacitance charging.S 3Have no progeny in the pass, resonant inductance L rFrom S 3, S 4The contact absorbing current is because S 3Parasitic capacitance exist, so the S that flows through 3Electric current be zero, voltage slowly rises to V C2, realize soft shutoff.
Stages 8 (t 7-t 8) S 1, S 4Conducting, the high-pressure side will be to C rCharging.S 3Parasitic capacitance voltage rise to V C2After, S 4Parasitic anti-and diode current flow, its drain-source voltage is 0, opens switching tube S this moment 4, realize that promptly no-voltage is open-minded.
Stages 9 (t 8-t 9) S 1, S 4Conducting, C is given in the high-pressure side rCharging, C rElectric current just becomes, S 4Forward conduction.
Stages 10 (t 9-t 10) S 1, S 2The dead band, S 2Parasitic capacitance discharge, S 1Parasitic capacitance charging.S 1Have no progeny in the pass, resonant inductance L rFrom S 1, S 2The contact absorbing current is because S 1Parasitic capacitance exist, so the S that flows through 1Electric current be zero, voltage slowly rises to V C2, realize soft shutoff.
Stages 11 (t 10-t 11) S 2, S 4Conducting, C rAbsorb C 2Energy.S 1Parasitic capacitance voltage rise to V C1After, S 2Parasitic anti-and diode current flow, its drain-source voltage is 0, opens switching tube S this moment 2, realize that promptly no-voltage is open-minded.
In order to improve pressure drop ratio,, expand the progression of switched-capacitor circuit according to the unsteady flow topological structure in the above-mentioned instance; As shown in Figure 7, a kind of non-isolation type current transformer based on phase shifting control comprises a n switched-capacitor circuit and a transforming circuit, and n switched-capacitor circuit cascade successively forms n=5 in this execution mode;
Switched-capacitor circuit is by two switching tube S 1～S 2, a high-voltage capacitance C 1, a resonant capacitance C rWith a resonant inductance L rForm; Wherein, switching tube S 1Input and high-voltage capacitance C 1An end link to each other and be the first input end of switched-capacitor circuit, switching tube S 1Output and switching tube S 2Input resonant inductance L rAn end link to each other and be second input of switched-capacitor circuit, switching tube S 2Output and high-voltage capacitance C 1The other end link to each other and be first output of switched-capacitor circuit, resonant inductance L rThe other end and resonant capacitance C rAn end link to each other resonant capacitance C rThe other end be second output of switched-capacitor circuit;
First output of i-1 switched-capacitor circuit links to each other with the first input end of i switched-capacitor circuit, and second output of i-1 switched-capacitor circuit links to each other with second input of i switched-capacitor circuit, and i is natural number and 2≤i≤5;
Transforming circuit is by two switching tube S 3～S 4, an output capacitance C OutA high-voltage capacitance C 2With a filter inductance L fComposition; Wherein, switching tube S 3Input and high-voltage capacitance C 2An end and first output of the 5th switched-capacitor circuit link to each other switching tube S 3Output and switching tube S 4Input, filter inductance L fAn end and second output of the 5th switched-capacitor circuit link to each other switching tube S 4Output and high-voltage capacitance C 2The other end link to each other; Filter inductance L fThe other end and high-voltage capacitance C 2The other end between be connected with output capacitance C Out
The first input end of the 1st switched-capacitor circuit and high-voltage capacitance C 2The other end constitute high-pressure side and external high voltage power supply or high-voltage load, filter inductance L fThe other end and high-voltage capacitance C 2The other end constitute low-pressure side and external low-tension supply or low-voltage load;
Control end of switching tube receives the control signal that external equipment provides; Switching tube S 1The control signal and the switching tube S that receive 2The control signal phase place that receives is complementary and exist the dead band at interval; Switching tube S 3The control signal and the switching tube S that receive 4The control signal phase place that receives is complementary and exist the dead band at interval; Switching tube S 1The control signal and the switching tube S that receive 3The control signal duty ratio that receives is identical and have a phase shifting angle.
This execution mode is owing to the nature that need power on is all pressed, so C 1=C 2, switching tube employing N type metal-oxide-semiconductor and each switching tube parameter are basic identical.
Be similar to the operation principle that foregoing employing one-level switched-capacitor circuit combines the unsteady flow topological structure of transforming circuit: when phase shifting angle is 0, resonant inductance L rElectric current is zero, transmission of power not between each high-voltage capacitance, and system is transmission of power not;
As phase shifting angle (S in the i-1 switched-capacitor circuit greater than 0 time 1Have precedence over S in the i switched-capacitor circuit 1Conducting, S in the 5th switched-capacitor circuit 1Have precedence over S 3Conducting), C in the i-1 switched-capacitor circuit 1C in the i switched-capacitor circuit 1Transmission of power, C in the 5th switched-capacitor circuit 1To C 2Transmission of power, system is from the high side to low side transmission of power; By capacitor C 2, switching tube S 3And S 4, filter inductance L fWith output capacitance C OutForm a BUCK circuit, the adjustment phase shifting angle, can make each high-voltage capacitance all press and for the high-pressure side input voltage 1/6, the low-pressure side output voltage is C 2Last voltage and S 1The product of the duty ratio D of control signal, this moment, the low-pressure side load was from C 2With level V resonant capacitance C rOn absorb energy and C 2With level V resonant capacitance C rFrom level V high-voltage capacitance C 1With fourth stage resonant capacitance C rOn absorb energy, by that analogy, system's no-load voltage ratio is D/6;
As phase shifting angle (S in the i-1 switched-capacitor circuit less than 0 time 1Lag behind S in the i switched-capacitor circuit 1Conducting, S in the 5th switched-capacitor circuit 1Lag behind S 3Conducting), C in the i switched-capacitor circuit 1C in the i-1 switched-capacitor circuit 1Transmission of power, C 2C in the 5th switched-capacitor circuit 1Transmission of power, system from low-pressure side to the high-pressure side transmission of power; By capacitor C 2, switching tube S 3And S 4With filter inductance L fForm a BOOST circuit and (remove output capacitance C Out), C 2Last voltage be the low-pressure side input voltage divided by duty ratio D, the adjustment phase shifting angle, each high-voltage capacitance is all pressed, and on high-tension side output voltage is a capacitor C 26 times of voltage, high-pressure side load this moment is from first order high-voltage capacitance C 1On absorb energy, the low-pressure side power supply is given C 2With level V resonant capacitance C rEnergy storage, level V high-voltage capacitance C 1With fourth stage resonant capacitance C rDraw C 2With level V resonant capacitance C rOn energy, by that analogy, system's no-load voltage ratio is 6/D.

Claims (10)

1.一种基于移相控制的非隔离型变流拓扑结构，其特征在于：包括一开关电容电路和一变压电路；1. A non-isolated converter topology based on phase-shift control, characterized in that: it comprises a switched capacitor circuit and a transformer circuit; 所述的开关电容电路由两个开关管S1～S2、一个高压电容C1、一个谐振电容Cr和一个谐振电感Lr组成；其中，开关管S1的输入端与高压电容C1的一端相连，开关管S1的输出端与开关管S2的输入端和谐振电感Lr的一端相连，开关管S2的输出端与高压电容C1的另一端相连，谐振电感Lr的另一端与谐振电容Cr的一端相连，谐振电容Cr的另一端与变压电路相连；The switched capacitor circuit is composed of two switch tubes S 1 -S 2 , a high-voltage capacitor C 1 , a resonant capacitor C r and a resonant inductance L r ; wherein, the input terminal of the switch tube S 1 is connected to the high-voltage capacitor C 1 One end of the switch tube S1 is connected to the input end of the switch tube S2 and one end of the resonant inductance L r , the output end of the switch tube S2 is connected to the other end of the high-voltage capacitor C1 , and the resonant inductance L r The other end is connected to one end of the resonant capacitor C r , and the other end of the resonant capacitor C r is connected to the transformer circuit; 所述的变压电路由两个开关管S3～S4、一个高压电容C2和一个滤波电感Lf组成；其中，开关管S3的输入端与高压电容C2的一端和开关电容电路中高压电容C1的另一端相连，开关管S3的输出端与开关管S4的输入端、滤波电感Lf的一端和开关电容电路中谐振电容Cr的另一端相连，开关管S4的输出端与高压电容C2的另一端相连；The voltage transformation circuit is composed of two switch tubes S 3 -S 4 , a high-voltage capacitor C 2 and a filter inductor L f ; wherein, the input end of the switch tube S 3 and one end of the high-voltage capacitor C 2 and the switched capacitor circuit The other end of the middle and high voltage capacitor C 1 is connected, the output end of the switch tube S 3 is connected with the input end of the switch tube S 4 , one end of the filter inductance L f is connected with the other end of the resonant capacitor C r in the switched capacitor circuit, and the switch tube S 4 The output terminal of the high voltage capacitor C2 is connected to the other end; 所述的开关管的控制端接收外部设备提供的控制信号。The control terminal of the switch tube receives a control signal provided by an external device. 2.根据权利要求1所述的基于移相控制的非隔离型变流拓扑结构，其特征在于：当高压侧作为输入低压侧作为输出时，所述的滤波电感Lf的另一端与高压电容C2的另一端之间连接有输出电容Cout。2. The non-isolated converter topology based on phase-shift control according to claim 1, characterized in that: when the high-voltage side is used as the input and the low-voltage side is used as the output, the other end of the filter inductor L f is connected to the high-voltage capacitor An output capacitor C out is connected between the other ends of C 2 . 3.根据权利要求1所述的基于移相控制的非隔离型变流拓扑结构，其特征在于：所述的开关管S1接收的控制信号与开关管S2接收的控制信号相位互补且存在死区间隔；开关管S3接收的控制信号与开关管S4接收的控制信号相位互补且存在死区间隔。3. The non-isolated converter topology based on phase-shift control according to claim 1, characterized in that: the control signal received by the switch tube S1 and the control signal received by the switch tube S2 are complementary in phase and exist Dead interval: the control signal received by the switch tube S3 and the control signal received by the switch tube S4 are complementary in phase and there is a dead interval. 4.根据权利要求1所述的基于移相控制的非隔离型变流拓扑结构，其特征在于：所述的开关管S1接收的控制信号与开关管S3接收的控制信号占空比相同且存在移相角。4. The non-isolated converter topology based on phase-shift control according to claim 1, characterized in that: the control signal received by the switch tube S1 has the same duty cycle as the control signal received by the switch tube S3 And there is a phase shift angle. 5.根据权利要求1、3或4所述的基于移相控制的非隔离型变流拓扑结构，其特征在于：所述的开关管为MOS管。5. The non-isolated converter topology based on phase-shift control according to claim 1, 3 or 4, characterized in that: said switch tube is a MOS tube. 6.一种基于移相控制的非隔离型变流器，其特征在于：包括n个开关电容电路和一变压电路，n个开关电容电路依次级联而成，n为大于1的自然数；6. A non-isolated converter based on phase-shift control, characterized in that: it includes n switched capacitor circuits and a transformer circuit, and n switched capacitor circuits are sequentially cascaded, and n is a natural number greater than 1; 所述的开关电容电路由两个开关管S1～S2、一个高压电容C1、一个谐振电容Cr和一个谐振电感Lr组成；其中，开关管S1的输入端与高压电容C1的一端相连且为开关电容电路的第一输入端，开关管S1的输出端与开关管S2的输入端和谐振电感Lr的一端相连且为开关电容电路的第二输入端，开关管S2的输出端与高压电容C1的另一端相连且为开关电容电路的第一输出端，谐振电感Lr的另一端与谐振电容Cr的一端相连，谐振电容Cr的另一端为开关电容电路的第二输出端；The switched capacitor circuit is composed of two switch tubes S 1 -S 2 , a high-voltage capacitor C 1 , a resonant capacitor C r and a resonant inductance L r ; wherein, the input terminal of the switch tube S 1 is connected to the high-voltage capacitor C 1 One end is connected to the first input end of the switched capacitor circuit, the output end of the switch tube S1 is connected to the input end of the switch tube S2 and one end of the resonant inductance Lr and is the second input end of the switched capacitor circuit, the switch tube The output terminal of S 2 is connected with the other end of the high-voltage capacitor C 1 and is the first output terminal of the switched capacitor circuit, the other end of the resonant inductor L r is connected with one end of the resonant capacitor C r , and the other end of the resonant capacitor C r is a switch a second output terminal of the capacitor circuit; 第i-1开关电容电路的第一输出端与第i开关电容电路的第一输入端相连，第i-1开关电容电路的第二输出端与第i开关电容电路的第二输入端相连，i为自然数且2≤i≤n；The first output end of the i-1th switched capacitor circuit is connected to the first input end of the i-th switched capacitor circuit, the second output end of the i-1th switched capacitor circuit is connected to the second input end of the i-th switched capacitor circuit, i is a natural number and 2≤i≤n; 所述的变压电路由两个开关管S3～S4、一个高压电容C2和一个滤波电感Lf组成；其中，开关管S3的输入端与高压电容C2的一端和第n开关电容电路的第一输出端相连，开关管S3的输出端与开关管S4的输入端、滤波电感Lf的一端和第n开关电容电路的第二输出端相连，开关管S4的输出端与高压电容C2的另一端相连；The voltage transformation circuit is composed of two switching tubes S 3 -S 4 , a high-voltage capacitor C 2 and a filter inductance L f ; wherein, the input end of the switching tube S 3 is connected to one end of the high-voltage capacitor C 2 and the nth switch The first output end of the capacitor circuit is connected, the output end of the switch tube S3 is connected with the input end of the switch tube S4 , one end of the filter inductance L f is connected with the second output end of the nth switched capacitor circuit, and the output of the switch tube S4 The end is connected with the other end of the high-voltage capacitor C2 ; 所述的开关管的控制端接收外部设备提供的控制信号。The control terminal of the switch tube receives a control signal provided by an external device. 7.根据权利要求6所述的基于移相控制的非隔离型变流器，其特征在于：当高压侧作为输入低压侧作为输出时，所述的滤波电感Lf的另一端与高压电容C2的另一端之间连接有输出电容Cout。7. The non-isolated converter based on phase-shift control according to claim 6, characterized in that: when the high-voltage side is used as the input and the low-voltage side is used as the output, the other end of the filter inductor L f is connected to the high-voltage capacitor C An output capacitor C out is connected between the other ends of 2 . 8.根据权利要求6所述的基于移相控制的非隔离型变流器，其特征在于：所述的开关管S1接收的控制信号与开关管S2接收的控制信号相位互补且存在死区间隔；开关管S3接收的控制信号与开关管S4接收的控制信号相位互补且存在死区间隔。8. The non-isolated converter based on phase-shift control according to claim 6, characterized in that: the control signal received by the switch tube S1 and the control signal received by the switch tube S2 are complementary in phase and there is a dead Interval: The control signal received by the switch tube S3 and the control signal received by the switch tube S4 are complementary in phase and there is a dead zone interval. 9.根据权利要求6所述的基于移相控制的非隔离型变流器，其特征在于：所述的开关管S1接收的控制信号与开关管S3接收的控制信号占空比相同且存在移相角。9. The non-isolated converter based on phase-shift control according to claim 6, characterized in that: the duty ratio of the control signal received by the switch tube S1 is the same as that of the control signal received by the switch tube S3 and There is a phase shift angle. 10.根据权利要求6、8或9所述的基于移相控制的非隔离型变流器，其特征在于：所述的开关管为MOS管。10. The non-isolated converter based on phase-shift control according to claim 6, 8 or 9, characterized in that the switch tube is a MOS tube.
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107634655A (en) * 2017-08-07 2018-01-26 北京交通大学 A Novel DC Power Electronic Transformer Topology with Fault Self-cleaning Capability
CN107769239A (en) * 2017-09-11 2018-03-06 北京交通大学 A kind of new alternating electromotive force electronic transformer topological structure
EP3506479A1 (en) * 2017-12-26 2019-07-03 Silergy Semiconductor Technology (Hangzhou) Ltd Direct current-direct current converter
CN110661416A (en) * 2018-06-28 2020-01-07 罗伯特·博世有限公司 Regulated high voltage reference
CN111064365A (en) * 2020-01-17 2020-04-24 东莞市恒信第三代半导体研究院 Voltage reduction mode constant voltage control method and circuit of soft switch bidirectional direct current converter
CN111130364A (en) * 2019-12-31 2020-05-08 北京交通大学 A three-phase rectifier
CN111245231A (en) * 2020-01-17 2020-06-05 东莞南方半导体科技有限公司 Boost mode constant voltage control method and circuit of soft switch bidirectional direct current converter
CN111711363A (en) * 2020-06-10 2020-09-25 北京交通大学 A kind of active voltage regulation control method of voltage equalizing converter
CN114342236A (en) * 2020-07-29 2022-04-12 华为数字能源技术有限公司 Conversion circuits and related electronic equipment

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107947593B (en) * 2017-12-26 2020-03-06 矽力杰半导体技术(杭州)有限公司 DC-DC converter
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1355593A (en) * 2000-12-01 2002-06-26 台达电子工业股份有限公司 Integrated multifunctional DC converter
CN101465605A (en) * 2009-01-12 2009-06-24 浙江大学 Flexible DC-DC converter with wide input range and variable topological
US20090316443A1 (en) * 2008-06-18 2009-12-24 Abb Ag Ac/dc intermediate-circuit converter having a very wide ac input voltage range
US20090322304A1 (en) * 2008-06-30 2009-12-31 Oraw Bradley S Series and parallel hybrid switched capacitor networks for ic power delivery
CN101874341A (en) * 2007-08-01 2010-10-27 英特赛尔美国股份有限公司 Voltage converter with combined buck converter and capacitive voltage divider

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1355593A (en) * 2000-12-01 2002-06-26 台达电子工业股份有限公司 Integrated multifunctional DC converter
CN101874341A (en) * 2007-08-01 2010-10-27 英特赛尔美国股份有限公司 Voltage converter with combined buck converter and capacitive voltage divider
US20090316443A1 (en) * 2008-06-18 2009-12-24 Abb Ag Ac/dc intermediate-circuit converter having a very wide ac input voltage range
US20090322304A1 (en) * 2008-06-30 2009-12-31 Oraw Bradley S Series and parallel hybrid switched capacitor networks for ic power delivery
CN101465605A (en) * 2009-01-12 2009-06-24 浙江大学 Flexible DC-DC converter with wide input range and variable topological

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107634655A (en) * 2017-08-07 2018-01-26 北京交通大学 A Novel DC Power Electronic Transformer Topology with Fault Self-cleaning Capability
CN107634655B (en) * 2017-08-07 2019-12-31 北京交通大学 Direct current power electronic transformer topology with fault self-cutting capability
CN107769239A (en) * 2017-09-11 2018-03-06 北京交通大学 A kind of new alternating electromotive force electronic transformer topological structure
EP3506479A1 (en) * 2017-12-26 2019-07-03 Silergy Semiconductor Technology (Hangzhou) Ltd Direct current-direct current converter
CN110661416A (en) * 2018-06-28 2020-01-07 罗伯特·博世有限公司 Regulated high voltage reference
CN111130364A (en) * 2019-12-31 2020-05-08 北京交通大学 A three-phase rectifier
CN111064365A (en) * 2020-01-17 2020-04-24 东莞市恒信第三代半导体研究院 Voltage reduction mode constant voltage control method and circuit of soft switch bidirectional direct current converter
CN111245231A (en) * 2020-01-17 2020-06-05 东莞南方半导体科技有限公司 Boost mode constant voltage control method and circuit of soft switch bidirectional direct current converter
CN111711363A (en) * 2020-06-10 2020-09-25 北京交通大学 A kind of active voltage regulation control method of voltage equalizing converter
CN111711363B (en) * 2020-06-10 2021-09-10 北京交通大学 Active voltage regulation control method for voltage-sharing converter
CN114342236A (en) * 2020-07-29 2022-04-12 华为数字能源技术有限公司 Conversion circuits and related electronic equipment

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