WO2023168683A1 - 一种漏感利用型变换器及控制方法 - Google Patents

一种漏感利用型变换器及控制方法 Download PDF

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Publication number
WO2023168683A1
WO2023168683A1 PCT/CN2022/080287 CN2022080287W WO2023168683A1 WO 2023168683 A1 WO2023168683 A1 WO 2023168683A1 CN 2022080287 W CN2022080287 W CN 2022080287W WO 2023168683 A1 WO2023168683 A1 WO 2023168683A1
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Prior art keywords
unit
leakage inductance
loop
input
potential energy
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PCT/CN2022/080287
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English (en)
French (fr)
Inventor
严宗周
位亚东
陈垣
张波
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深圳原能电器有限公司
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Priority to PCT/CN2022/080287 priority Critical patent/WO2023168683A1/zh
Publication of WO2023168683A1 publication Critical patent/WO2023168683A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Definitions

  • the present invention relates to the field of converter technical equipment, and in particular to a leakage inductance utilization type converter and a control method.
  • the above-mentioned type of converter does not provide a technical solution for leakage inductance recycling, which results in a certain degree of waste of power.
  • the bridge rectification itself consists of two groups of four diodes.
  • the voltage drop of each diode is more than 0.7V, and two of them reach more than 1.4V.
  • the energy damage details increase.
  • the energy loss reaches about 3W when the input is 90V, reaching 1.5% of the output.
  • the present invention provides a leakage inductance utilization type converter and a control method.
  • the technical solution adopted by the present invention to solve the above problems is: a leakage inductance utilization type converter, which includes: an input unit, and the input unit is any one of an input capacitor, an input bus terminal, and a filter capacitor after rectification at the input terminal. kind;
  • the potential energy conversion unit is a potential energy converter, which includes any one or more of a transformer and an inductor, and the potential energy conversion unit is electrically connected to the input unit and the output unit;
  • a leakage inductance recovery unit includes an energy storage capacitor, the leakage inductance recovery unit is electrically connected to the potential energy conversion unit, or is electrically connected to the potential energy conversion unit and the input unit;
  • An output unit the output unit is used to output electric energy to a load, and the output unit is electrically connected to the potential energy conversion unit;
  • control unit includes any one or more of switching tubes and diodes, the control unit is electrically connected to the input unit, the potential energy conversion unit, the leakage inductance recovery unit, and the output unit. .
  • the leakage inductance recovery unit further includes: a leakage inductance recovery diode, the positive end of the leakage inductance recovery diode is electrically connected to the ground end of the potential energy conversion unit, and the negative end of the leakage inductance recovery diode is electrically connected to the The input terminal of the potential energy transformation unit;
  • the input unit Under the control of the control unit, the input unit stores energy in the potential energy conversion unit and forms a first loop;
  • the input unit and the potential energy conversion unit are connected in series to store energy in the leakage inductance recovery unit and form a second loop;
  • the potential energy conversion unit is electrically connected to the leakage inductance recovery unit and forms a third loop;
  • the leakage inductance recovery unit directly or in series with the input unit outputs energy to the potential energy conversion unit and forms a fourth loop;
  • the potential energy conversion unit outputs energy to the output unit and forms a fifth loop.
  • connection method of the energy storage capacitor may be any one or more of the following:
  • the positive terminal of the energy storage capacitor is connected to the positive terminal of the input unit, so that the energy storage capacitor can store energy and serve as an input filter capacitor, or participate in forming a valley filling circuit;
  • the positive terminal of the energy storage capacitor is connected to the input pin of the potential energy conversion unit for recycling leakage inductance energy
  • the input unit is provided with an input negative terminal, and the control unit controls the positive terminal of the energy storage capacitor to be connected to the input negative terminal. Under the control of the control unit, the energy storage capacitor is connected in series with the input unit. and store energy in the potential energy conversion unit;
  • the energy storage capacitor can be electrically connected to an electrical device, and the electrical device includes at least one of a module, a lamp, a fan, a power supply, and a display.
  • the potential energy conversion unit is a same-magnetic core converter
  • the AC input of the input unit is divided into positive and negative half cycles, and the energy commutation of the positive and negative half-cycles is incorporated into the same-magnetic core converter, A bridgeless half-wave symmetrical converter is formed.
  • control unit stores the leakage inductance energy and/or the excess peak energy in the input unit into the leakage inductance recovery unit, and then transfers the energy stored in the leakage inductance recovery unit to the potential energy conversion unit through the control unit. units for reuse.
  • the second loop is turned on and the potential energy conversion unit boosts the voltage, or the third loop is turned on and the leakage inductance energy of the potential energy conversion unit is recovered to the leakage inductance recovery unit. middle;
  • the fourth loop is turned on and the energy stored in the leakage inductance recovery unit is output to the potential energy conversion unit for energy storage, during which the leakage inductance recovery unit can directly output to
  • the potential energy conversion unit may be connected in series with the input unit and then output to the potential energy conversion unit;
  • the control unit Under the control of the control unit, if the energy storage conversion of the potential energy conversion unit is completed, the fourth loop is closed, the fifth loop is turned on, and the energy stored in the potential energy conversion unit is output to the output unit.
  • the leakage inductance recovery unit is changed into a buck-boost circuit through the control unit, and then cooperates with the storage and output of energy.
  • the control method includes:
  • control unit when the input is an alternating current peak, the control unit performs peak clipping and distributes excess energy to the energy storage capacitor by controlling the conduction time of its internal switch tube and the voltage of the energy storage capacitor;
  • the alternating current input by the input unit is divided into positive half-cycle and negative half-cycle, and the control unit controls the output of the positive half-cycle and negative half-cycle of the alternating current, and conducts the fourth loop during the low period of the input.
  • the beneficial value achieved by the present invention is that the input unit, the potential energy conversion unit, the leakage inductance recovery unit, the output unit, the control unit and other components are composed into a usage structure, and the corresponding
  • the control method realizes the recovery and utilization of the leakage inductance energy of the converter, and at the same time can perform peak cutting energy storage; with the cooperation of the control unit, different ways can be realized through a combination of fewer switching tubes (KP, K1)
  • KP, K1 switching tubes
  • the recovery of leakage inductance and the distribution and utilization of energy storage can realize a single-stage PFC converter whose input is a sine wave current and the output is a low-ripple voltage and current, as well as a reverse merging of the positive and negative half cycles of the input sine wave energy into the same magnetic core.
  • the bridgeless half-wave symmetrical converter implemented in the potential energy converter is suitable for a variety of usage scenarios.
  • the overall structure is streamlined and ingenious, and consumes less energy, which is conducive to achieving energy conservation and environmental protection and reducing overall costs. The above greatly improves the practical value of the present invention.
  • Figure 1 is a schematic diagram of the boost leakage inductance recovery and output buck converter of the present invention
  • Figure 2 is a schematic diagram of the boost leakage inductance recovery and output boost converter of the present invention
  • Figure 3 is a schematic diagram of the boost leakage inductance recovery flyback converter of the present invention.
  • Figure 4 is a schematic diagram of the full-voltage leakage inductance recovery, buck-boost converter of the present invention
  • Figure 5 is a schematic diagram showing the reusable and valley-filling implementation of the energy storage capacitor and input unit of the leakage inductance recovery unit of the present invention
  • Figure 6 is a schematic diagram of the implementation of single-stage PFC for leakage inductance recycling and parallel grain filling according to the present invention
  • Figure 7 is a schematic diagram showing the implementation of leakage inductance recycling and series-parallel valley filling single-stage PFC converter according to the present invention.
  • Figure 8 is a schematic diagram of the implementation of half-wave symmetric single-stage PFC transformation according to the present invention.
  • Figure 9 is a modal diagram when the present invention implements single-stage PFC
  • Figure 10 is a positive half-cycle modal diagram when the present invention is implemented as a half-wave symmetric converter
  • Figure 11 is a negative half-cycle modal diagram when the present invention is implemented as a half-wave symmetric converter
  • Figure 12 is a parallel valley filling control diagram when the present invention is implemented as a single-stage PFC
  • Figure 13 is a comparison diagram of the current waves output by the equipment of the present invention and the prior art
  • FIG. 14 is a partial schematic diagram I of the control method of the present invention.
  • Figure 15 is a partial schematic diagram II of the control method of the present invention.
  • the present invention discloses a leakage inductance utilization type converter, which includes: an input unit, which is any one of an input capacitor, an input bus terminal, and a filter capacitor after rectification at the input terminal.
  • an input unit which is any one of an input capacitor, an input bus terminal, and a filter capacitor after rectification at the input terminal.
  • the input unit is provided with an input negative terminal GND;
  • the potential energy conversion unit is a potential energy converter, which includes any one or more of a transformer T1 and an inductor TP.
  • the potential energy conversion unit is electrically connected to the input unit and the output unit;
  • a leakage inductance recovery unit includes an energy storage capacitor ECP, the leakage inductance recovery unit is electrically connected to the potential energy conversion unit, or is electrically connected to the potential energy conversion unit and the input unit;
  • An output unit the output unit is used to output electric energy to the load, the output unit is composed of a switching tube or a diode and a capacitor, and the output unit is electrically connected to the potential energy conversion unit;
  • control unit includes any one or more of switching tubes (K1, KP) and diodes, the control unit is connected with the input unit, the potential energy conversion unit, the leakage inductance recovery unit, and the The output unit is electrically connected.
  • switching tubes K1, KP
  • diodes the control unit is connected with the input unit, the potential energy conversion unit, the leakage inductance recovery unit, and the The output unit is electrically connected.
  • the potential energy conversion unit is a potential energy converter, such as the inductor LP in Figures 1 and 2, and the transformer T1 in Figure 3, where the diode DF in Figures 1 to 3 is a leakage inductance diode, It is used to assist in the full process of leakage inductance recovery, and can be optionally added for use in Figures 1-3.
  • the capacitor ECP in Figures 1 to 11 is the energy storage capacitor.
  • the switching tubes KP and K1 and the diodes DP and D7 are part of the control unit, which can be integrated into a module, and the diode D7 can be combined with the capacitor EC3. the output unit.
  • Figure 1, Figure 2, and Figure 3 show the boost leakage inductance recovery.
  • Figure 3 is realized through the flyback cooperation of the transformer T1.
  • Figure 1 shows the output buck mode
  • Figure 2 shows the output boost mode.
  • the leakage inductance recovery unit also includes: a leakage inductance recovery diode DF.
  • the positive end of the leakage inductance recovery diode DF is electrically connected to the ground of the potential energy conversion unit (inductor LP or transformer T1). terminal, the negative terminal of the leakage inductance recovery diode DF is electrically connected to the input terminal of the potential energy conversion unit (inductor LP or transformer T1);
  • the input unit Under the control of the control unit, the input unit stores energy in the potential energy conversion unit and forms a first loop;
  • the input unit and the potential energy conversion unit are connected in series to store energy in the leakage inductance recovery unit and form a second loop;
  • the potential energy conversion unit is electrically connected to the leakage inductance recovery unit and forms a third loop, and the potential energy conversion unit charges the leakage inductance recovery unit;
  • the leakage inductance recovery unit directly or in series with the input unit outputs energy to the potential energy conversion unit and forms a fourth loop;
  • the potential energy conversion unit outputs energy to the output unit and forms a fifth loop.
  • connection method of the energy storage capacitor can be any one or more of the following:
  • the positive terminal of the energy storage capacitor ECP is connected to the positive terminal of the input unit, so that the energy storage capacitor ECP can store energy and serve as an input filter capacitor, or participate in forming a valley filling circuit;
  • the positive terminal of the energy storage capacitor ECP is connected to the input pin of the potential energy conversion unit T1 for recycling leakage inductance energy
  • the input unit is provided with an input negative terminal GND, and the control unit controls the positive terminal of the energy storage capacitor ECP to be connected to the input negative terminal GND.
  • the energy storage Capacitor ECP is connected in series with the input unit and stores energy in the potential energy conversion unit T1;
  • the energy storage capacitor ECP can be electrically connected to an electrical device, which at least includes one or more of: a module, a lamp, a fan, a power supply, a display, and other power supplies where needed.
  • a control method for a leakage inductance utilization type converter as shown in Figures 9 to 11.
  • the method is: the leakage inductance energy and/or the excess peak energy in the input unit is peak-cut and stored in the leakage inductance through the control unit.
  • the energy stored in the leakage inductance recovery unit is transferred to the potential energy conversion unit through the control unit for reuse.
  • the second loop is turned on and the potential energy conversion unit boosts the voltage, or the third loop is turned on and the leakage inductance of the potential energy conversion unit is reduced. Energy is recovered into the leakage inductance recovery unit;
  • the fourth loop is turned on and the energy stored in the leakage inductance recovery unit is output to the potential energy conversion unit for energy storage, during which the leakage inductance recovery unit can directly output to
  • the potential energy conversion unit may be connected in series with the input unit and then output to the potential energy conversion unit;
  • the control unit Under the control of the control unit, if the energy storage conversion of the potential energy conversion unit is completed, the fourth loop is closed, the fifth loop is turned on, and the energy stored in the potential energy conversion unit is output to the output unit.
  • Figure 9 is a modal diagram of a single-stage PFC.
  • the input alone stores energy in the potential energy converter (referred to as converter in the figure) (the first Loop operation)
  • the secondary leakage inductance recovery and secondary demagnetization are performed in mode b (the fifth loop, the third loop operation), which is the secondary coil flyback to all the leakage inductance recovery units.
  • mode a and mode b switch to each other according to the preset peak clipping point and valley filling point, where the peak clipping point and valley filling point are referred to as clipping and filling switching points; in mode c, peak clipping is performed Energy storage or boost leakage inductance recovery (the second loop works), mode a and mode c switch to each other as needed, where peak clipping occurs when mode a switches to mode c, and mode c and Mode b switches to each other for buck energy storage or boost energy storage, so the cycle of peak clipping energy storage is from mode a to mode c, mode c to mode b, and finally mode b returns to Mode a forms a closed loop; valley filling discharge is performed in mode d (the fourth loop operation).
  • Mode a and mode d switch to each other according to the actual valley filling demand or energy storage demand.
  • Mode b and mode Mode d switches between each other according to the degree of valley filling demand, so the cycle of valley filling discharge is from mode a to mode b, mode b to mode d, and finally mode d returns to mode a to form a closed loop.
  • Figure 10 is the modal diagram of the positive half cycle of the half-wave symmetric converter
  • Figure 11 is the modal diagram of the negative half cycle.
  • the cycle of positive half cycle peak energy storage is: from positive half cycle converter energy storage (the first loop works) to positive half cycle peak energy storage (the second loop works), positive half cycle Peak cutting energy storage then utilizes leakage inductance + secondary freewheeling in the positive half cycle (the third loop works, the fifth loop works), and finally returns to the positive half cycle converter to store energy to form a closed loop.
  • the positive half cycle converts
  • the energy storage of the positive half-cycle converter can also be directly switched with each other by utilizing the positive half-cycle leakage inductance + secondary freewheeling, and adjacent stages can also be switched with each other;
  • the cycle of positive half-cycle valley-filling discharge is: energy storage by the positive half-cycle converter (the first loop operation) to positive half-cycle leakage inductance utilization + secondary freewheeling (the third loop operation, the fifth loop operation), positive half-cycle leakage inductance utilization + secondary freewheeling, and then to positive half-cycle valley filling ( The fourth loop works), and finally returns to the positive half-cycle converter to store energy to form a closed loop, and adjacent stages can also switch to each other.
  • the positive half-cycle converter generally only parallel valley filling can be performed, while in the negative half-cycle, parallel or series valley filling can be performed.
  • the series valley filling conduction time is shorter and the efficiency is higher.
  • the cycle of negative half cycle peak shaving energy storage is: from negative half cycle converter energy storage (the first loop works) to peak shaving energy storage (the second loop works), Peak energy storage then goes to leakage inductance utilization + secondary freewheeling (the third loop operation, the fifth loop operation), and finally returns to the negative half-cycle converter to store energy to form a closed loop.
  • the negative half-cycle converter stores energy It can also be directly switched with the leakage inductance + secondary freewheeling, and adjacent stages can also be switched with each other;
  • the cycle of parallel valley filling in the negative half cycle is: energy storage by the negative half cycle converter (the first loop works) to the leakage inductance utilization + secondary freewheeling (the third loop operation, the fifth loop operation), the leakage inductance utilization + secondary freewheeling, and then to the negative half cycle parallel valley filling (the fourth loop operation) ), and finally returns to the negative half-cycle converter to store energy to form a closed loop, and adjacent stages can also switch to each other.
  • negative half-cycle parallel valley filling and series valley filling can be switched. When the negative half-cycle series valley filling is used, the fourth loop and the first loop work, and the input unit is connected to the leakage inductance. Recycling units are connected in series.
  • control unit turns the leakage inductance recovery unit into a buck-boost circuit, and then cooperates with the storage and output of energy.
  • the control method (understood in conjunction with Figures 6, 9, and 12) include:
  • the control unit mainly includes switching tubes KP, KP1, K1 and related diodes.
  • the switching tubes KP and K1 are closed and KP1 is open, the first loop operates, the potential energy converter (transformer T1) stores energy, and corresponding to mode a, the energy storage capacitor ECP is charged.
  • the switching tubes KP1 and K1 are closed and KP is open, the fourth loop works, corresponding to the mode d.
  • the leakage inductance utilization unit releases electric energy through the energy storage capacitor to fill the valley, thereby realizing the PFC function, such as In the lower half of the IECP line chart in Figure 12, the energy storage capacitor ECP is discharging. As it discharges, the impedance of the potential energy converter (transformer T1) gradually decreases, and the discharge current of the energy storage capacitor ECP is in a rising stage. After the energy storage capacitor is discharged, it is subject to the flyback of the potential energy converter (transformer T1). At this stage, the current of the energy storage capacitor ECP shows a declining stage in the first half, and this stage corresponds to mode b.
  • control method also includes:
  • control unit when the input is an alternating current peak, the control unit performs peak clipping and distributes excess energy to the energy storage capacitor by controlling the conduction time of its internal switch tube and the voltage of the energy storage capacitor;
  • the alternating current input by the input unit can be divided into positive half-cycle and negative half-cycle, and the control unit controls the output of the positive half-cycle and negative half-cycle of the alternating current, and during the low period of the input
  • the fourth loop is turned on to realize the function of a bridgeless half-wave symmetrical converter.
  • the invention realizes a single-stage PFC function in which the input is a sine wave current and the output is a low-ripple voltage and current.
  • the input sine wave current is realized through series connection, parallel connection, series-parallel combination, duty cycle adjustment, and frequency adjustment.
  • the present invention composes the input unit, the potential energy conversion unit, the leakage inductance recovery unit, the output unit, the control unit and other components into a usage structure, and cooperates with the corresponding control method. It realizes the recovery and utilization of the leakage inductance energy of the converter, and at the same time can perform peak clipping energy storage; with the cooperation of the control unit, different ways of reducing the leakage inductance can be realized through a combination of fewer switching tubes (KP, K1) Distribution and utilization of recovery and energy storage to achieve a single-stage PFC converter that inputs a sine wave current and outputs a low-ripple voltage and current, and a potential energy changer that reversely merges the positive and negative half cycles of the input sine wave energy into the same magnetic core.
  • KP switching tubes
  • the bridgeless half-wave symmetrical converter implemented in the converter can be adapted to a variety of usage scenarios.
  • the overall architecture is streamlined and ingenious, and consumes less energy, which is conducive to achieving energy conservation and environmental protection and reducing overall costs. The above greatly improves the practical value of the present invention.

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Abstract

本发明公开了一种漏感利用型变换器，其包括：输入单元，所述输入单元为输入电容、输入母线端、输入端整流后加滤波电容中的任意一种；势能变换单元，所述势能变换单元为势能变换器，所述势能变换单元与所述输入单元电连接；漏感回收单元，所述漏感回收单元包括储能电容，所述漏感回收单元与所述势能变换单元电连接；输出单元，所述输出单元用于输出电能到负载，所述输出单元与所述势能变换单元电连接；控制单元，所述控制单元与所述输入单元、所述势能变换单元、所述漏感回收单元、所述输出单元电连接；以及对应的控制方法，实现了对漏感进行回收利用，并通过所述控制单元实现单级PFC变换器、无桥半波对称变换器对应的功能。

Description

一种漏感利用型变换器及控制方法 技术领域
本发明涉及到变换器技术设备领域，尤其涉及到一种漏感利用型变换器及控制方法。
背景技术
现有的变换器或升降压电路，为了有效利用电网，很多产品需要高功率因数，比如LED灯电源、75W以上的电源，为了实现高PF通常需要进行两极转换，先升压提高PF值，再进行降压或者升压转换，两次转换需要两个电感或一个电感加一个变压器，而这种设计不仅浪费了部分能量并且导致了总的体积变大；而市场普通单级PFC由于输入电压Vin为正弦波，为实现高PFC，输入电流Iin需要同相位也为正弦波，使得输出PUTOUT＝Vin*Iin产生两倍输入工频的大纹波；另一种低纹波单级PFC变换器中由于开关不在变换器两端，使得PFC电容再45度及225度期间输入电压高于PFC电容时候，特别在输入230V以上时候，PFC电容低于输入有效值时候无法实现填谷，加上本身填谷期间能量，PFC电容通常要250V以上。
同时上述类型的变换器也没有给出漏感回收利用的技术方案，存在一定程度上的电能浪费。
现有市场的适配需要桥式整流再供电给后端，桥式整流自身由两组四个二极管构成，每个二极管压降0.7V以上，两个达到1.4V以上，当瞬间电流大的时候电压更高，输出功率大时候，其能量损坏明细增加，一个200W输出的产品，在90V输入时候其能量损失达到3W左 右，达到输出1.5％。
因此，亟需一种能够解决以上一种或多种问题的漏感利用型变换器及控制方法。只用一个变换器，不用二次转化实现输入高PFC值，输出低纹波，且实现了PFC电容电压更低，漏感全程能回收利用，结合半波对称技术还实现去桥堆。从而实现体积更小、寿命更长、效率更高的全新的变换器。
发明内容
为解决现有技术中存在的一种或多种问题，本发明提供了一种漏感利用型变换器及控制方法。本发明为解决上述问题采用的技术方案是：一种漏感利用型变换器，其包括：输入单元，所述输入单元为输入电容、输入母线端、输入端整流后加滤波电容中的任意一种；
势能变换单元，所述势能变换单元为势能变换器，其包括变压器和电感中的任意一种或多种，所述势能变换单元与所述输入单元、所述输出单元电连接；
漏感回收单元，所述漏感回收单元包括储能电容，所述漏感回收单元与所述势能变换单元电连接，或与所述势能变换单元及所述输入单元电连接；
输出单元，所述输出单元用于输出电能到负载，所述输出单元与所述势能变换单元电连接；
控制单元，所述控制单元包括开关管、二极管中的任意一种或多种，所述控制单元与所述输入单元、所述势能变换单元、所述漏感回收单元、所述输出单元电连接。
进一步地，所述漏感回收单元还包括：漏感回收二极管，所述漏感回收二极管的正端电连接所述势能变换单元的地端，所述漏感回收二极管的负端电连接所述势能变换单元的输入端；
在所述控制单元的控制下，所述输入单元给所述势能变换单元储能并组成第一环路；
在所述控制单元的控制下，所述输入单元与所述势能变换单元串联后给所述漏感回收单元储能，并组成第二环路；
在所述控制单元的控制下，所述势能变换单元与所述漏感回收单元电连接并组成第三环路；
在所述控制单元的控制下，所述漏感回收单元直接或者和所述输入单元串联输出能量到所述势能变换单元并组成第四环路；
在所述控制单元的控制下，所述势能变换单元输出能量到所述输出单元并组成第五环路。
进一步地，所述储能电容的连接方式可为以下的任意一种或多种：
所述储能电容的正极端与所述输入单元的正极端连接，使得所述储能电容能够进行储能和作为输入滤波电容，或是参与组成填谷电路；
所述储能电容的正极端与所述势能变换单元的输入脚连接，用于进行漏感能量的回收利用；
所述输入单元设置有输入负端，所述控制单元控制所述储能电容的正极端与所述输入负端连接，在所述控制单元的控制下所述储能电容与所述输入单元串联并给所述势能变换单元储能；
所述储能电容可与用电器件电连接，所述用电器件至少包括模块、 灯、风扇、供电电源、显示器里一种。
进一步地，在所述势能变换单元为同磁芯变换器时，将所述输入单元的交流输入划分正负半周，正半周和负半周的能量换向并入所述同磁芯变换器上，形成无桥半波对称变换器。
进一步地，根据需要变更元器件位置、添加元器件，为提升效率可将二极管替换成开关管。
进一步地，通过控制单元将漏感能量和/或输入单元中的多余峰值能量削峰存入到漏感回收单元内，再通过控制单元将所述漏感回收单元内存储的能量传递到势能变换单元进行再利用。
进一步地，还包括：
在所述控制单元的控制下，第二环路导通、所述势能变换单元升压，或第三环路导通并将所述势能变换单元的漏感能量回收到所述漏感回收单元中；
在所述控制单元的控制下，第四环路导通并将所述漏感回收单元内存储的能量输出到所述势能变换单元内进行储能，期间所述漏感回收单元可直接输出到所述势能变换单元，或是与所述输入单元串联后再输出给所述势能变换单元；
在所述控制单元的控制下，若所述势能变换单元的储能转化完成则关闭所述第四环路，导通第五环路，将所述势能变换单元存储的能量输出到所述输出单元。
进一步地，通过所述控制单元将所述漏感回收单元变为升降压电路，进而配合能量的存储和输出，控制方式包括：
S010，当所述漏感回收单元的储能电容需要低于输入电压进行储能时：先导通所述第一环路给所述势能变换单元储能，或导通所述第二环路给所述势能变换单元降压储能，或依次导通所述第一环路、所述第二环路，或依次导通所述第二环路、所述第一环路，在所述势能变换单元储能完成后关闭所述第一、第二环路，然后导通所述第三环路，使得所述势能变换单元剩余的漏感反激升压给所述漏感回收单元储能，导通所述第五环路给输出供电；
S020，当所述漏感回收单元的储能电容需要高于输入电压进行储能时：先导通所述第一环路给所述势能变换单元储能并在储能完成后关闭所述第一环路，然后导通所述第三环路，使得所述势能变换单元反激升压并将漏感能量输入到所述漏感回收单元内进行储能，导通所述第五环路给输出供电；
S021，或先导通所述第一环路给所述势能变换单元储能并在储能完成后关闭所述第一环路，然后导通所述第二环路，使得所述势能变换单元的反激输出和所述输入单元叠压给所述漏感回收单元进行储能，导通所述第五环路给输出供电。
进一步地，还包括：
P010，在输入为交流电高峰时，所述控制单元通过控制其内部开关管的导通时间和储能电容的电压，进行削峰并将多余的能量分配到所述储能电容内；
P011，在输入为交流电低谷时，将所述储能电容在削峰期间存储的能量通过第四环路进行释放。
进一步地，将所述输入单元输入的交流电划分为正半周和负半周，所述控制单元控制交流电的正半周和负半周的输出，并在输入的低谷时期导通第四环路。
本发明取得的有益价值是：本发明通过将所述输入单元、所述势能变换单元、所述漏感回收单元、所述输出单元、所述控制单元以及其他元器件组成使用架构，配合对应的控制方法，实现了回收利用变换器的漏感能量，并同时能够进行削峰储能；在所述控制单元的配合下能够通过较少的开关管(KP、K1)组合实现不同的方式以进行漏感的回收、储能的分配利用，实现输入为正弦波电流，输出为低纹波的电压电流的单级PFC变换器，以及将输入正弦波能量正负半周反向并入同磁芯的势能变化器中实现的无桥半波对称变换器，进而适配多种使用场合，同时整体架构精简巧妙，耗能较低，利于实现节能环保的目的和降低整体成本。以上极大地提高了本发明的实用价值。
附图说明
图1为本发明的升压型漏感回收、输出降压变换器的示意图；
图2为本发明的升压型漏感回收、输出升压变换器的示意图；
图3为本发明的升压型漏感回收反激式变换器的示意图；
图4为本发明的全电压型漏感回收、升降压变换器的示意图；
图5为本发明的漏感回收单元的储能电容和输入单元可复用、填谷的实施示意图；
图6为本发明实现漏感回收利用、并联填谷单级PFC实施示意图；
图7为本发明实现漏感回收利用、串并联填谷单级PFC变换器实施示 意图；
图8为本发明实现半波对称单级PFC变换的实施示意图；
图9为本发明实现单级PFC时的模态图；
图10为本发明实施为半波对称变换器时的正半周模态图；
图11为本发明实施为半波对称变换器时的负半周模态图；
图12为本发明实施为单级PFC时并联填谷控制图；
图13为本发明与现有技术设备输出的电流波对比图；
图14为本发明的控制方法部分示意图Ⅰ；
图15为本发明的控制方法部分示意图II。
具体实施方式
为使本发明的上述目的、特征和优点能够更加浅显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于此描述的其他方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例限制。
如图1-图13所示，本发明公开了一种漏感利用型变换器，其包括：输入单元，所述输入单元为输入电容、输入母线端、输入端整流后加滤波电容中的任意一种，所述输入单元设置有输入负端GND；
势能变换单元，所述势能变换单元为势能变换器，其包括变压器T1和电感TP中的任意一种或多种，所述势能变换单元与所述输入单元、所述输出单元电连接；
漏感回收单元，所述漏感回收单元包括储能电容ECP，所述漏感 回收单元与所述势能变换单元电连接，或与所述势能变换单元及所述输入单元电连接；
输出单元，所述输出单元用于输出电能到负载，所述输出单元由开关管或二极管和电容组成，所述输出单元与所述势能变换单元电连接；
控制单元，所述控制单元包括开关管(K1、KP)、二极管中的任意一种或多种，所述控制单元与所述输入单元、所述势能变换单元、所述漏感回收单元、所述输出单元电连接。
需要说明的是，所述势能变换单元为势能变换器，如图1、图2中的电感LP，图3中的变压器T1，其中图1-图3中的二极管DF为漏感二级管，用于协助进行全程的漏感回收，在图1-图3可选择添加使用。图1-图11中的电容ECP为所述储能电容，开关管KP、K1和二极管DP、D7为所述控制单元的一部分，其可集成到一个模块内，并且二极管D7可配合电容EC3组成所述输出单元。图1、图2、图3为升压型漏感回收，其中图3通过变压器T1反激配合实现，图1为输出降压模式，图2为输出升压模式。
具体地，如图4所示，所述漏感回收单元还包括：漏感回收二极管DF，所述漏感回收二极管DF的正端电连接所述势能变换单元(电感LP或变压器T1)的地端，所述漏感回收二极管DF的负端电连接所述势能变换单元(电感LP或变压器T1)的输入端；
在所述控制单元的控制下，所述输入单元给所述势能变换单元储能并组成第一环路；
在所述控制单元的控制下，所述输入单元与所述势能变换单元串联后给所述漏感回收单元储能，并组成第二环路；
在所述控制单元的控制下，所述势能变换单元与所述漏感回收单元电连接并组成第三环路，所述势能变换单元给所述漏感回收单元充电；
在所述控制单元的控制下，所述漏感回收单元直接或者和所述输入单元串联输出能量到所述势能变换单元并组成第四环路；
在所述控制单元的控制下，所述势能变换单元输出能量到所述输出单元并组成第五环路。
具体地，如图5-图7所示，所述储能电容的连接方式可为以下的任意一种或多种：
如图5，所述储能电容ECP的正极端与所述输入单元的正极端连接，使得所述储能电容ECP能够进行储能和作为输入滤波电容，或是参与组成填谷电路；
如图6，所述储能电容ECP的正极端与所述势能变换单元T1的输入脚连接，用于进行漏感能量的回收利用；
如图7，所述输入单元设置有输入负端GND，所述控制单元控制所述储能电容ECP的正极端与所述输入负端GND连接，在所述控制单元的控制下所述储能电容ECP与所述输入单元串联并给所述势能变换单元T1储能；
所述储能电容ECP可与用电器件电连接，所述用电器件至少包括：模块、灯、风扇、供电电源、显示器里的一种或多种，及其他需要的 地方进行供电。
具体地，如图8所示，在所述势能变换单元为同磁芯变换器T1时，将所述输入单元的交流输入划分正负半周，正半周和负半周的能量换向并入到所述同磁芯变换器T1上，形成无桥半波对称变换器。
需要指出的是，根据需要变更元器件位置、添加元器件，为提升效率可将二极管替换成开关管。
以及一种漏感利用型变换器的控制方法，参考图9-图11所示，该方法为：通过控制单元将漏感能量和/或输入单元中的多余峰值能量削峰存入到漏感回收单元内，再通过控制单元将所述漏感回收单元内存储的能量传递到势能变换单元进行再利用。
具体地，结合图4所示，在所述控制单元的控制下，第二环路导通、所述势能变换单元升压，或第三环路导通并将所述势能变换单元的漏感能量回收到所述漏感回收单元中；
在所述控制单元的控制下，第四环路导通并将所述漏感回收单元内存储的能量输出到所述势能变换单元内进行储能，期间所述漏感回收单元可直接输出到所述势能变换单元，或是与所述输入单元串联后再输出给所述势能变换单元；
在所述控制单元的控制下，若所述势能变换单元的储能转化完成则关闭所述第四环路，导通第五环路，将所述势能变换单元存储的能量输出到所述输出单元。
具体地，图9为单级PFC的模态图，结合图6、图9所示，模态a时输入单独给所述势能变换器(图中简称为变换器)储能(所述第一 环路工作)，模态b时进行次漏感回收和次级退磁(所述第五环路、所述第三环路工作)既是次级线圈反激给所述漏感回收单元中的所述储能电容ECP充电，模态a和模态b根据预设削峰点、填谷点进行互相切换，其中削峰点、填谷点简称为削填切换点；模态c时进行削峰储能或升压漏感回收(所述第二环路工作)，模态a和模态c根据需要进行互相切换，其中模态a切换到模态c时进行削峰，而模态c与模态b进行互相切换是为进行降压储能或升压储能，则削峰储能的循环为模态a到模态c，模态c再到模态b，最后模态b回到模态a形成闭环；模态d时进行填谷放电(所述第四环路工作)，模态a和模态d根据实际是填谷需求还是储能需求进行互相切换，模态b和模态d根据填谷需求的程度进行互相切换，则填谷放电的循环为模态a到模态b，模态b再到模态d，最后模态d回到模态a形成闭环。
具体地，图10为半波对称变换器正半周模态图，图11为负半周的模态图。在图10中，正半周削峰储能的循环为：由正半周变换器储能(所述第一环路工作)到正半周削峰储能(所述第二环路工作)，正半周削峰储能再到正半周漏感利用+次级续流(所述第三环路工作、所述第五环路工作)，最后回到正半周变换器储能形成闭环，当然正半周变换器储能也可与正半周漏感利用+次级续流直接进行互相切换，相邻阶段也可互相切换；正半周填谷放电的循环为：由正半周变换器储能(所述第一环路工作)到正半周漏感利用+次级续流(所述第三环路工作、所述第五环路工作)，正半周漏感利用+次级续流再到正半周填谷(所述第四环路工作)，最后回到正半周变换器储能形成闭 环，相邻阶段也可互相切换。需要指出的是，在正半周工作期间，一般只能是进行并联填谷，而负半周可并联或串联填谷，其中串联填谷导通时间更短、效率更高。
具体地，在图11中，负半周削峰储能的循环为：由负半周变换器储能(所述第一环路工作)到削峰储能(所述第二环路工作)，削峰储能再到漏感利用+次级续流(所述第三环路工作、所述第五环路工作)，最后回到负半周变换器储能形成闭环，当然负半周变换器储能也可与漏感利用+次级续流直接进行互相切换，相邻阶段也可互相切换；负半周进行并联填谷的循环为：由负半周变换器储能(所述第一环路工作)到漏感利用+次级续流(所述第三环路工作、所述第五环路工作)，漏感利用+次级续流再到负半周并联填谷(所述第四环路工作)，最后回到负半周变换器储能形成闭环，相邻阶段也可互相切换。需要指出的是负半周并联填谷和串联填谷可以进行切换使用，其中负半周串联填谷时所述第四环路和所述第一环路工作，并且所述输入单元与所述漏感回收单元串联。
具体地，如图14所示，通过所述控制单元将所述漏感回收单元变为升降压电路，进而配合能量的存储和输出，控制方式(结合图6、图9、图12理解)包括：
S010，当所述漏感回收单元的储能电容需要低于输入电压进行储能时：先导通所述第一环路给所述势能变换单元储能，或导通所述第二环路给所述势能变换单元降压储能，或依次导通所述第一环路、所述第二环路，或依次导通所述第二环路、所述第一环路，在所述势能 变换单元储能完成后关闭所述第一、第二环路，然后导通所述第三环路，使得所述势能变换单元剩余的漏感反激升压给所述漏感回收单元储能，导通所述第五环路给输出供电；
S020，当所述漏感回收单元的储能电容需要高于输入电压进行储能时：先导通所述第一环路给所述势能变换单元储能并在储能完成后关闭所述第一环路，然后导通所述第三环路，使得所述势能变换单元反激升压并将漏感能量输入到所述漏感回收单元内进行储能，导通所述第五环路给输出供电；
S021，或先导通所述第一环路给所述势能变换单元储能并在储能完成后关闭所述第一环路，然后导通所述第二环路，使得所述势能变换单元的反激输出和所述输入单元叠压给所述漏感回收单元进行储能，导通所述第五环路给输出供电。
为实现漏感利用型PFC功能结合图6、图9、图12所示，所述控制单元主要包括开关管KP、KP1、K1及相关二极管。开关管KP、K1闭合，KP1断开时，所述第一环路工作，所述势能变换器(变压器T1)储能，对应模态a，所述储能电容ECP进行充电。开关管KP1、K1闭合，KP断开时，所述第四环路工作，对应模态d，期间所述漏感利用单元通过所述储能电容释放电能进行填谷，进而实现PFC功能，如图12中的IECP折线图的下半，所述储能电容ECP放电，随着其放电所述势能变换器(变压器T1)的阻抗逐渐降低，所述储能电容ECP的放电电流呈上升阶段，当所述储能电容放电完毕后，其受到了所述势能变换器(变压器T1)的反激，此阶段所述储能电容ECP的电流在 上半呈下降阶段，并且此阶段对应模态b开关管全部关闭(所述漏感利用单元工作)，使得电流在漏感二级管DP的作用下向所述储能电容充电，实现次级的漏感回收，再是在漏感回收过程中所述第一环路(开关管KP、K1闭合，KP1断开)可短暂导通给所述势能变换器(变压器T1)充电，此时是不影响到漏感回收到所述储能电容中的；需要指出的是，在所述漏感利用单元进行填谷和漏感回收利用阶段中，所述储能电容的电压折线是呈下降阶段的，如图12中的VECP。在输入高压阶段(由低压点逐渐向高压点前进)，需要进行削峰降压储能，对应模态c，此时所述第二环路工作(KP闭合，KP1、K1断开)，期间所述漏感回收单元中的所述储能电容ECP电压呈上升趋势；在输入高压阶段(由高压点逐渐向低压点前进)，需要进行削峰升压储能，对应模态c，期间所述漏感回收单元中的所述储能电容ECP电压继续呈上升趋势并逐渐达到最大值。
具体地，结合图12、图15所示，控制方式还包括：
P010，在输入为交流电高峰时，所述控制单元通过控制其内部开关管的导通时间和储能电容的电压，进行削峰并将多余的能量分配到所述储能电容内；
P011，在输入为交流电低谷时，将所述储能电容在削峰期间存储的能量通过第四环路进行释放。
进一步地，结合图10、图11所示，可将所述输入单元输入的交流电划分为正半周和负半周，所述控制单元控制交流电的正半周和负半周的输出，并在输入的低谷时期导通第四环路，以实现无桥半波对 称变换器的功能。
本发明实现了输入为正弦波电流，输出为低波纹的电压电流的单级PFC功能。其中在连续模式固定峰值下，通过串联、并联、串并结合的方式、调占空比的方式、调频率的方式实现输入正弦波电流。
综上所述，本发明通过将所述输入单元、所述势能变换单元、所述漏感回收单元、所述输出单元、所述控制单元以及其他元器件组成使用架构，配合对应的控制方法，实现了回收利用变换器的漏感能量，并同时能够进行削峰储能；在所述控制单元的配合下能够通过较少的开关管(KP、K1)组合实现不同的方式以进行漏感的回收、储能的分配利用，实现输入为正弦波电流，输出为低纹波的电压电流的单级PFC变换器，以及将输入正弦波能量正负半周反向并入同磁芯的势能变化器中实现的无桥半波对称变换器，进而适配多种使用场合，同时整体架构精简巧妙，耗能较低，利于实现节能环保的目的和降低整体成本。以上极大地提高了本发明的实用价值。
以上所述的实施例仅表达了本发明的一种或多种实施方式，其描述较为具体和详细，但并不能因此理解为对本发明专利的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明的构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种漏感利用型变换器，其特征在于，包括：输入单元，所述输入单元为输入电容、输入母线端、输入端整流后加滤波电容中的任意一种；
    势能变换单元，所述势能变换单元为势能变换器，其包括变压器和电感中的任意一种或多种，所述势能变换单元与所述输入单元、所述输出单元电连接；
    漏感回收单元，所述漏感回收单元包括储能电容，所述漏感回收单元与所述势能变换单元电连接，或与所述势能变换单元及所述输入单元电连接；
    输出单元，所述输出单元用于输出电能到负载，所述输出单元与所述势能变换单元电连接；
    控制单元，所述控制单元包括开关管、二极管中的任意一种或多种，所述控制单元与所述输入单元、所述势能变换单元、所述漏感回收单元、所述输出单元电连接。
  2. 根据权利要求1所述的一种漏感利用型变换器，其特征在于，所述漏感回收单元还包括：漏感回收二极管，所述漏感回收二极管的正端电连接所述势能变换单元的地端，所述漏感回收二极管的负端电连接所述势能变换单元的输入端；
    在所述控制单元的控制下，所述输入单元给所述势能变换单元储能并组成第一环路；
    在所述控制单元的控制下，所述输入单元与所述势能变换单元串联后给所述漏感回收单元储能，并组成第二环路；
    在所述控制单元的控制下，所述势能变换单元与所述漏感回收单元电连接并组成第三环路；
    在所述控制单元的控制下，所述漏感回收单元直接或者和所述输入单元串联输出能量到所述势能变换单元并组成第四环路；
    在所述控制单元的控制下，所述势能变换单元输出能量到所述输出单元并组成第五环路。
  3. 根据权利要求1所述的一种漏感利用型变换器，其特征在于，所述储能电容的连接方式可为以下的任意一种或多种：
    所述储能电容的正极端与所述输入单元的正极端连接，使得所述储能电容能够进行储能和作为输入滤波电容，或是参与组成填谷电路；
    所述储能电容的正极端与所述势能变换单元的输入脚连接，用于进行漏感能量的回收利用；
    所述输入单元设置有输入负端，所述控制单元控制所述储能电容的正极端与所述输入负端连接，在所述控制单元的控制下所述储能电容与所述输入单元串联并给所述势能变换单元储能；
    所述储能电容可与用电器件电连接，所述用电器件至少包括模块、灯、风扇、供电电源、显示器里一种或多种。
  4. 根据权利要求1所述的一种漏感利用型变换器，其特征在于，在所述势能变换单元为同磁芯变换器时，将所述输入单元的交流输入划分正负半周，正半周和负半周的能量换向并入所述同磁芯变换器上，形成无桥半波对称变换器。
  5. 根据权利要求1-4中任意一项所述的一种漏感利用型变换器， 其特征在于，根据需要变更元器件位置、添加元器件，为提升效率可将二极管替换成开关管。
  6. 一种漏感利用型变换器的控制方法，其特征在于，通过控制单元将漏感能量和/或输入单元中的多余峰值能量削峰存入到漏感回收单元内，再通过控制单元将所述漏感回收单元内存储的能量传递到势能变换单元进行再利用。
  7. 根据权利要求6所述的一种漏感利用型变换器的控制方法，其特征在于，还包括：
    在所述控制单元的控制下，第二环路导通、所述势能变换单元升压，或第三环路导通并将所述势能变换单元的漏感能量回收到所述漏感回收单元中；
    在所述控制单元的控制下，第四环路导通并将所述漏感回收单元内存储的能量输出到所述势能变换单元内进行储能，期间所述漏感回收单元可直接输出到所述势能变换单元，或是与所述输入单元串联后再输出给所述势能变换单元；
    在所述控制单元的控制下，若所述势能变换单元的储能转化完成则关闭所述第四环路，导通第五环路，将所述势能变换单元存储的能量输出到所述输出单元。
  8. 根据权利要求6所述的一种漏感利用型变换器的控制方法，其特征在于，通过所述控制单元将所述漏感回收单元变为升降压电路，进而配合能量的存储和输出，控制方式包括：
    S010，当所述漏感回收单元的储能电容需要低于输入电压进行储 能时：先导通所述第一环路给所述势能变换单元储能，或导通所述第二环路给所述势能变换单元降压储能，或依次导通所述第一环路、所述第二环路，或依次导通所述第二环路、所述第一环路，在所述势能变换单元储能完成后关闭所述第一、第二环路，然后导通所述第三环路，使得所述势能变换单元剩余的漏感反激升压给所述漏感回收单元储能，导通所述第五环路给输出供电；
    S020，当所述漏感回收单元的储能电容需要高于输入电压进行储能时：先导通所述第一环路给所述势能变换单元储能并在储能完成后关闭所述第一环路，然后导通所述第三环路，使得所述势能变换单元反激升压并将漏感能量输入到所述漏感回收单元内进行储能，导通所述第五环路给输出供电；
    S021，或先导通所述第一环路给所述势能变换单元储能并在储能完成后关闭所述第一环路，然后导通所述第二环路，使得所述势能变换单元的反激输出和所述输入单元叠压给所述漏感回收单元进行储能，导通所述第五环路给输出供电。
  9. 根据权利要求6所述的一种漏感利用型变换器的控制方法，其特征在于，还包括：
    P010，在输入为交流电高峰时，所述控制单元通过控制其内部开关管的导通时间和储能电容的电压，进行削峰并将多余的能量分配到所述储能电容内；
    P011，在输入为交流电低谷时，将所述储能电容在削峰期间存储的能量通过第四环路进行释放。
  10. 根据权利要求6所述的一种漏感利用型变换器的控制方法，其特征在于，将所述输入单元输入的交流电划分为正半周和负半周，所述控制单元控制交流电的正半周和负半周的输出，并在输入的低谷时期导通第四环路。
PCT/CN2022/080287 2022-03-11 2022-03-11 一种漏感利用型变换器及控制方法 WO2023168683A1 (zh)

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