CN205123579U - High -gain DC -DC photovoltaic booster converter based on coupling inductance - Google Patents
High -gain DC -DC photovoltaic booster converter based on coupling inductance Download PDFInfo
- Publication number
- CN205123579U CN205123579U CN201520953889.5U CN201520953889U CN205123579U CN 205123579 U CN205123579 U CN 205123579U CN 201520953889 U CN201520953889 U CN 201520953889U CN 205123579 U CN205123579 U CN 205123579U
- Authority
- CN
- China
- Prior art keywords
- terminal
- capacitor
- inductor
- positive
- negative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Photovoltaic Devices (AREA)
Abstract
本实用新型公开了一种基于耦合电感的高增益DC-DC光伏升压变换器，光伏电池板的输出正端与电感L1的同名端相连，光伏电池板的输出负端分别与电力电子开关S的负端、电容C1和Cf的负端相连；电感L1的非同名端分别连接电力电子开关S的正端、电感的L2的非同名端、直流电容C1的正端和直流电容C2的负端；电感L2的同名端分别与电感L3的非同名端、直流电容C2的正端、直流电容C3的负端相连；电感L3的同名端分别与直流电容C3的正端、电感Lf的正端连接；电感Lf的负端分别连接电容Cf的正端和直流母线正端；电容Cf的负端连接直流母线的负端。本实用新型采用耦合电感实现多级升压的目的，具有直流电压增益高、控制简单、系统电磁兼容性好、成本低等优点。
The utility model discloses a high-gain DC-DC photovoltaic step-up converter based on coupled inductance. The positive output terminal of the photovoltaic battery panel is connected with the same - named terminal of the inductance L1, and the negative output terminal of the photovoltaic battery panel is connected with the power electronic switch respectively. The negative terminal of S, the negative terminal of capacitor C 1 and C f are connected; the non-identical terminal of inductor L 1 is respectively connected with the positive terminal of power electronic switch S, the non-identical terminal of inductor L 2 , the positive terminal of DC capacitor C 1 and The negative terminal of the DC capacitor C2 ; the terminal with the same name of the inductor L2 is respectively connected with the non - identical terminal of the inductor L3, the positive terminal of the DC capacitor C2, and the negative terminal of the DC capacitor C3 ; the terminal with the same name of the inductor L3 is respectively connected with the DC current The positive terminal of capacitor C3 and the positive terminal of inductor L f are connected; the negative terminal of inductor L f is respectively connected to the positive terminal of capacitor C f and the positive terminal of DC bus; the negative terminal of capacitor C f is connected to the negative terminal of DC bus. The utility model adopts the coupling inductor to realize the purpose of multi-stage boosting, and has the advantages of high DC voltage gain, simple control, good electromagnetic compatibility of the system, and low cost.
Description
技术领域technical field
本实用新型属于新能源发电与智能配电系统领域，特别涉及一种基于耦合电感的高增益DC-DC光伏升压变换器。The utility model belongs to the field of new energy power generation and intelligent power distribution systems, in particular to a high-gain DC-DC photovoltaic step-up converter based on coupled inductance.
背景技术Background technique
全球能源危机及环境恶化极大地促进了以太阳能光伏发电为代表的新能源发电技术，电力电子变换器作为太阳能光伏发电中电能转换的重要环节，是光伏发电系统核心技术之一。The global energy crisis and environmental degradation have greatly promoted the new energy generation technology represented by solar photovoltaic power generation. Power electronic converters, as an important part of electric energy conversion in solar photovoltaic power generation, are one of the core technologies of photovoltaic power generation systems.
典型的光伏并网发电系统由多个光伏电池模块通过各自的升压变换器与高压直流母线相连，再经过并网逆变器向电网供电。其中，光伏电池模块通常由数个小的光伏电池串并联组成。受限于光照强度的差异性和各个电池之间的相互影响，光伏电池不能串联过多，否则整个模块的性能会大大降低。光伏电池模块的输出电压相对较低(33～43V)，而半桥/全桥并网逆变器所需输入电压通常在380/760V以上，升压变换器的输入输出电压相差了数十倍，传统Boost变换器已经不能胜任。如何在保证系统经济可靠的前提下，实现高效率、高升压的DC-DC变换，已成为光伏并网发电系统的研究热点。A typical photovoltaic grid-connected power generation system consists of multiple photovoltaic cell modules connected to a high-voltage DC bus through their respective boost converters, and then supplies power to the grid through a grid-connected inverter. Among them, the photovoltaic cell module is usually composed of several small photovoltaic cells connected in series and parallel. Due to the difference in light intensity and the interaction between cells, too many photovoltaic cells cannot be connected in series, otherwise the performance of the entire module will be greatly reduced. The output voltage of the photovoltaic cell module is relatively low (33-43V), while the input voltage required by the half-bridge/full-bridge grid-connected inverter is usually above 380/760V, and the difference between the input and output voltages of the boost converter is dozens of times , the traditional Boost converter is no longer competent. How to realize high-efficiency, high-boost DC-DC conversion on the premise of ensuring the system's economy and reliability has become a research hotspot in photovoltaic grid-connected power generation systems.
实用新型内容Utility model content
本实用新型的目的在于克服现有技术的不足，提供一种采用耦合电感实现多级升压的目的，有利于模块化结构设计，具有直流电压增益高、控制简单、系统电磁兼容性好、成本低等优点的基于耦合电感的高增益DC-DC光伏升压变换器。The purpose of the utility model is to overcome the deficiencies of the prior art, to provide a multi-level boost by using coupled inductors, which is beneficial to the design of the modular structure, and has the advantages of high DC voltage gain, simple control, good electromagnetic compatibility of the system, and low cost. High-gain DC-DC photovoltaic boost converter based on coupled inductors with low advantages.
本实用新型的目的是通过以下技术方案来实现的：一种基于耦合电感的高增益DC-DC光伏升压变换器，包括光伏电池板、多个通过互磁通耦合连接的电感L1、L2、L3，电力电子开关S，直流电容C1、C2、C3，以及由电感Lf和电容Cf构成的输出滤波器；The purpose of this utility model is achieved through the following technical solutions: a high-gain DC-DC photovoltaic boost converter based on coupled inductors, including photovoltaic panels, a plurality of inductors L 1 , L connected by mutual magnetic flux coupling 2. L 3 , power electronic switch S, DC capacitors C 1 , C 2 , C 3 , and an output filter composed of inductance L f and capacitor C f ;
光伏电池板的输出正端与电感L1的同名端相连，光伏电池板的输出负端分别与电力电子开关S的负端、电容C1和Cf的负端相连；The positive output terminal of the photovoltaic cell panel is connected to the same - named terminal of the inductor L1, and the negative output terminal of the photovoltaic cell panel is respectively connected to the negative terminal of the power electronic switch S and the negative terminals of the capacitors C1 and Cf ;
电感L1的非同名端分别连接电力电子开关S的正端、电感的L2的非同名端、直流电容C1的正端和直流电容C2的负端； The non-identical end of the inductor L1 is respectively connected to the positive end of the power electronic switch S, the non - identical end of the inductor L2, the positive end of the DC capacitor C1 , and the negative end of the DC capacitor C2 ;
电感L2的同名端分别与电感L3的非同名端、直流电容C2的正端、直流电容C3的负端相连；The same - named end of the inductor L2 is respectively connected to the non - identical end of the inductor L3, the positive end of the DC capacitor C2 , and the negative end of the DC capacitor C3;
电感L3的同名端分别与直流电容C3的正端、电感Lf的正端连接；The terminal with the same name of the inductance L3 is respectively connected to the positive terminal of the DC capacitor C3 and the positive terminal of the inductance Lf ;
电感Lf的负端分别连接电容Cf的正端和直流母线正端；The negative terminal of the inductor L f is connected to the positive terminal of the capacitor C f and the positive terminal of the DC bus respectively;
电容Cf的负端连接直流母线的负端。The negative end of the capacitor C f is connected to the negative end of the DC bus.
进一步地，所述的电感L1的非同名端串联接入一个续流二极管D1，续流二极管D1的阳极分别连接L1的非同名端和电力电子开关S的正端，续流二极管D1的阴极分别连接电感的L2的非同名端、直流电容C1的正端和直流电容C2的负端。Further, the non - identical end of the inductor L1 is connected in series with a freewheeling diode D1, and the anode of the freewheeling diode D1 is respectively connected to the non - identical end of L1 and the positive end of the power electronic switch S, and the freewheeling diode The cathode of D 1 is respectively connected to the non-identical end of L 2 of the inductor, the positive end of DC capacitor C 1 and the negative end of DC capacitor C 2 .
进一步地，所述的电感L2的同名端串联接入一个续流二极管D2，续流二极管D2的阳极与电感L2的同名端相连，续流二极管D2的阴极分别连接L3的非同名端、直流电容C2的正端、直流电容C3的负端相连。Further, the end of the same name of the inductor L2 is connected in series with a freewheeling diode D2 , the anode of the freewheeling diode D2 is connected to the end of the same name of the inductor L2, and the cathodes of the freewheeling diode D2 are respectively connected to the The non - identical terminal, the positive terminal of the DC capacitor C2, and the negative terminal of the DC capacitor C3 are connected.
进一步地，所述的电感L3的同名端串联接入一个续流二极管D3，续流二极管D3的阳极与电感L3的同名端相连，续流二极管D3的阴极分别连接直流电容C3的正端和电感Lf的正端。Further, the end of the same name of the inductor L3 is connected in series with a freewheeling diode D3 , the anode of the freewheeling diode D3 is connected to the end of the same name of the inductor L3, and the cathodes of the freewheeling diode D3 are respectively connected to the DC capacitor C The positive end of 3 and the positive end of the inductance L f .
本实用新型的有益效果是：The beneficial effects of the utility model are:
1、电感L1、L2、L3采用磁耦合技术实现能量传递，实现了多级升压的目的，易于实现高频化从而显著减小元器件尺寸，有利于模块化结构设计，具有直流电压增益高、控制简单、系统电磁兼容性好、成本低等优点；1. Inductors L 1 , L 2 , and L 3 use magnetic coupling technology to realize energy transfer, realize the purpose of multi-stage boosting, and are easy to achieve high frequency to significantly reduce the size of components, which is conducive to modular structure design and has DC High voltage gain, simple control, good electromagnetic compatibility of the system, and low cost;
2、该拓扑结构可以实现高增益DC-DC斩波升压功能，可以用于单个光伏电池板的直流升压，便于将单个光伏电池板采用微型逆变器直接接入电网；也可用于大容量的大型光伏阵列通过直流升压变换器接入直流微电网或中压交流电网的应用场合。2. This topology can realize high-gain DC-DC chopper boost function, which can be used for DC boosting of a single photovoltaic panel, which is convenient for a single photovoltaic panel to be directly connected to the power grid with a micro-inverter; it can also be used for large Large-scale photovoltaic arrays with high capacity are connected to DC micro-grids or medium-voltage AC grids through DC boost converters.
附图说明Description of drawings
图1为本实用新型的高增益DC-DC光伏升压变换器的电路拓扑图；Fig. 1 is the circuit topological diagram of the high-gain DC-DC photovoltaic step-up converter of the present invention;
图2本实用新型工作模式I示意图；Fig. 2 schematic diagram of working mode I of the utility model;
图3本实用新型工作模式II示意图；Fig. 3 schematic diagram of working mode II of the utility model;
图4本实用新型工作模式III示意图；Fig. 4 schematic diagram of working mode III of the utility model;
图5本实用新型工作模式I、II、III的波形示意图。Fig. 5 is a schematic diagram of waveforms of working modes I, II and III of the utility model.
具体实施方式detailed description
下面结合附图进一步说明本实用新型的技术方案。Further illustrate the technical scheme of the utility model below in conjunction with accompanying drawing.
如图1所示，本实用新型的一种基于耦合电感的高增益DC-DC光伏升压变换器，包括光伏电池板、多个通过互磁通耦合连接的电感L1、L2、L3，电力电子开关S，直流电容C1、C2、C3，以及由电感Lf和电容Cf构成的输出滤波器；As shown in Figure 1, a high-gain DC-DC photovoltaic boost converter based on coupled inductors of the present invention includes photovoltaic panels, multiple inductors L 1 , L 2 , and L 3 connected through mutual magnetic flux coupling , power electronic switch S, DC capacitors C 1 , C 2 , C 3 , and an output filter composed of inductor L f and capacitor C f ;
光伏电池板的输出正端与电感L1的同名端相连，光伏电池板的输出负端分别与电力电子开关S的负端、电容C1和Cf的负端相连；The positive output terminal of the photovoltaic cell panel is connected to the same - named terminal of the inductor L1, and the negative output terminal of the photovoltaic cell panel is respectively connected to the negative terminal of the power electronic switch S and the negative terminals of the capacitors C1 and Cf ;
电感L1的非同名端分别连接电力电子开关S的正端、电感的L2的非同名端、直流电容C1的正端和直流电容C2的负端； The non-identical end of the inductor L1 is respectively connected to the positive end of the power electronic switch S, the non - identical end of the inductor L2, the positive end of the DC capacitor C1 , and the negative end of the DC capacitor C2 ;
电感L2的同名端分别与电感L3的非同名端、直流电容C2的正端、直流电容C3的负端相连；The same - named end of the inductor L2 is respectively connected to the non - identical end of the inductor L3, the positive end of the DC capacitor C2 , and the negative end of the DC capacitor C3;
电感L3的同名端分别与直流电容C3的正端、电感Lf的正端连接；The terminal with the same name of the inductance L3 is respectively connected to the positive terminal of the DC capacitor C3 and the positive terminal of the inductance Lf ;
电感Lf的负端分别连接电容Cf的正端和直流母线正端；The negative terminal of the inductor L f is connected to the positive terminal of the capacitor C f and the positive terminal of the DC bus respectively;
电容Cf的负端连接直流母线的负端。The negative end of the capacitor C f is connected to the negative end of the DC bus.
进一步地，所述的电感L1的非同名端串联接入一个续流二极管D1，续流二极管D1的阳极分别连接L1的非同名端和电力电子开关S的正端，续流二极管D1的阴极分别连接电感的L2的非同名端、直流电容C1的正端和直流电容C2的负端。Further, the non - identical end of the inductor L1 is connected in series with a freewheeling diode D1, and the anode of the freewheeling diode D1 is respectively connected to the non - identical end of L1 and the positive end of the power electronic switch S, and the freewheeling diode The cathode of D 1 is respectively connected to the non-identical end of L 2 of the inductor, the positive end of DC capacitor C 1 and the negative end of DC capacitor C 2 .
进一步地，所述的电感L2的同名端串联接入一个续流二极管D2，续流二极管D2的阳极与电感L2的同名端相连，续流二极管D2的阴极分别连接L3的非同名端、直流电容C2的正端、直流电容C3的负端相连。Further, the end of the same name of the inductor L2 is connected in series with a freewheeling diode D2 , the anode of the freewheeling diode D2 is connected to the end of the same name of the inductor L2, and the cathodes of the freewheeling diode D2 are respectively connected to the The non - identical terminal, the positive terminal of the DC capacitor C2, and the negative terminal of the DC capacitor C3 are connected.
进一步地，所述的电感L3的同名端串联接入一个续流二极管D3，续流二极管D3的阳极与电感L3的同名端相连，续流二极管D3的阴极分别连接直流电容C3的正端和电感Lf的正端。Further, the end of the same name of the inductor L3 is connected in series with a freewheeling diode D3 , the anode of the freewheeling diode D3 is connected to the end of the same name of the inductor L3, and the cathodes of the freewheeling diode D3 are respectively connected to the DC capacitor C The positive end of 3 and the positive end of the inductance L f .
本实用新型的基于耦合电感的高增益DC-DC升压变换器电路的电感L1及续流二极管D1处于断续工作模式(DiscontinuousConductionMode,DCM)，忽略电感L1、L2、L3的等效电阻，并假设电容C1、C2及C3足够大以至忽略电容电压纹波。图2至图5分别为基于耦合电感的高增益DC-DC升压变换器电路的三种典型工作模式及其波形示意图。The inductance L 1 and the freewheeling diode D 1 of the high-gain DC-DC boost converter circuit based on the coupled inductance of the utility model are in the discontinuous operation mode (DiscontinuousConductionMode, DCM), and the inductances L 1 , L 2 , and L 3 are ignored equivalent resistance, and assume that capacitors C 1 , C 2 and C 3 are large enough to ignore the capacitor voltage ripple. Fig. 2 to Fig. 5 are respectively three typical operating modes and their waveform diagrams of a high-gain DC-DC boost converter circuit based on a coupled inductor.
下面对本实用新型三种典型工作模式及其波形示意图进行具体说明。The three typical working modes of the utility model and their waveform schematic diagrams are described in detail below.
工作模式I：此工作模式电路示意图如图2所示，波形示意图为图5中[t0,t1]阶段。该模式下，电力电子开关S闭合，光伏电池板的能量储存在电感L1中，电感L1的电流逐渐增加，到t＝t1时刻，电感电流达到最大值IL1pk；电容C1、C2、C3放电，通过输出滤波器Lf、Cf向直流母线供电。Working mode I: the circuit schematic diagram of this working mode is shown in Figure 2, and the waveform schematic diagram is the stage [t 0 , t 1 ] in Figure 5 . In this mode, the power electronic switch S is closed, the energy of the photovoltaic panel is stored in the inductor L 1 , the current of the inductor L 1 increases gradually, and at the time t=t 1 , the inductor current reaches the maximum value I L1pk ; the capacitors C 1 , C 2. C 3 discharges and supplies power to the DC bus through the output filters L f and C f .
工作模式II：此工作模式电路示意图如图3所示，波形示意图为图5中[t1,t2]阶段。该模式下，电力电子开关S处于开路状态，电感L1中的储能通过磁耦合作用向电感L2和L3充电，由于电感L1存在一定的漏感，因此L1的储能也向电容C1充电，充电电流为ILkg；电感L2通过续流二极管D2向电容C2充电，电感L3通过续流二极管D3向电容C3充电；电感L1、L2、L3分别给电容C1、C2、C3充电的同时，由于电容的储能作用，电容C1、C2、C3也为直流母线供电。Working Mode II: The circuit schematic diagram of this working mode is shown in Figure 3, and the waveform schematic diagram is the stage [t 1 , t 2 ] in Figure 5 . In this mode, the power electronic switch S is in an open circuit state, and the energy stored in the inductor L1 is charged to the inductors L2 and L3 through magnetic coupling. Since the inductor L1 has a certain leakage inductance , the energy stored in L1 is also charged to the inductor L1. The capacitor C 1 is charged, and the charging current is I Lkg ; the inductor L 2 charges the capacitor C 2 through the freewheeling diode D 2 , and the inductor L 3 charges the capacitor C 3 through the freewheeling diode D 3 ; the inductors L 1 , L 2 , L 3 While charging the capacitors C 1 , C 2 , and C 3 respectively, due to the energy storage function of the capacitors, the capacitors C 1 , C 2 , and C 3 also supply power to the DC bus.
工作模式III：此工作模式电路示意图如图4所示，波形示意图为图5中[t2,t3]阶段。该模式下，电力电子开关S处于开路状态，电感L1、L2、L3的储能全部释放完毕，此时续流二极管D1、D2、D3全部为反向偏置，电容C1、C2、C3同时为直流母线供电。在各个阶段中，电感对电容的充电速度很快，因此电容C1、C2、C3为直流母线提供了稳定的直流电压。Working Mode III: The circuit schematic diagram of this working mode is shown in Figure 4, and the waveform schematic diagram is the [t 2 , t 3 ] stage in Figure 5 . In this mode, the power electronic switch S is in an open circuit state, and the energy storage of the inductors L 1 , L 2 , and L 3 is fully released. At this time, the freewheeling diodes D 1 , D 2 , and D 3 are all reverse-biased, and the capacitor C 1 , C 2 , and C 3 supply power to the DC bus at the same time. In each stage, the inductor charges the capacitor very quickly, so the capacitors C 1 , C 2 , and C 3 provide a stable DC voltage for the DC bus.
图5给出了上述三种工作模式的波形示意图。当t＝[t0,t1]时，电力电子开关S的控制信号Vg为高电平，电力电子开关S的电压信号Vs为低电平，电感L1的电流IL1逐渐上升至IL1pk，电感L2的电流为零；当t＝[t1,t2]时，电力电子开关S的控制信号Vg为低电平，电力电子开关S的电压信号Vs为VC1，电感L1的电流IL1降为零，电感L2的电流从最大值IL2pk逐渐降低到零；当t＝[t2,t3]时，电力电子开关S的控制信号Vg为低电平，电力电子开关S的电压信号Vs为光伏电池板输入电压Vi，电感L1、L2的电流IL1、IL2都降为零。FIG. 5 shows schematic diagrams of the waveforms of the above three working modes. When t=[t 0 , t 1 ], the control signal V g of the power electronic switch S is at a high level, the voltage signal V s of the power electronic switch S is at a low level, and the current I L1 of the inductor L 1 gradually rises to I L1pk , the current of the inductor L 2 is zero; when t=[t 1 ,t 2 ], the control signal V g of the power electronic switch S is at low level, and the voltage signal V s of the power electronic switch S is V C1 , The current I L1 of the inductor L 1 drops to zero, and the current of the inductor L 2 gradually decreases from the maximum value I L2pk to zero; when t=[t 2 ,t 3 ], the control signal V g of the power electronic switch S is low voltage level, the voltage signal V s of the power electronic switch S is the input voltage V i of the photovoltaic panel, and the currents I L1 and I L2 of the inductors L 1 and L 2 both drop to zero.
本领域的普通技术人员将会意识到，这里所述的实施例是为了帮助读者理解本实用新型的原理，应被理解为本实用新型的保护范围并不局限于这样的特别陈述和实施例。本领域的普通技术人员可以根据本实用新型公开的这些技术启示做出各种不脱离本实用新型实质的其它各种具体变形和组合，这些变形和组合仍然在本实用新型的保护范围内。Those skilled in the art will appreciate that the embodiments described here are to help readers understand the principle of the utility model, and it should be understood that the protection scope of the utility model is not limited to such specific statements and examples. Those skilled in the art can make various other specific modifications and combinations based on the technical revelations disclosed in the utility model without departing from the essence of the utility model, and these variations and combinations are still within the protection scope of the utility model.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520953889.5U CN205123579U (en) | 2015-11-26 | 2015-11-26 | High -gain DC -DC photovoltaic booster converter based on coupling inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520953889.5U CN205123579U (en) | 2015-11-26 | 2015-11-26 | High -gain DC -DC photovoltaic booster converter based on coupling inductance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205123579U true CN205123579U (en) | 2016-03-30 |
Family
ID=55579150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520953889.5U Expired - Fee Related CN205123579U (en) | 2015-11-26 | 2015-11-26 | High -gain DC -DC photovoltaic booster converter based on coupling inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205123579U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827115A (en) * | 2016-04-25 | 2016-08-03 | 国网北京市电力公司 | DC step-up circuit, step-up method and transformer |
| CN105958816A (en) * | 2016-05-30 | 2016-09-21 | 西安交通大学 | Multi-unit diode capacitor network and coupling inductor high-gain DC converter |
| CN106602867A (en) * | 2017-03-08 | 2017-04-26 | 广东工业大学 | High-gain switch capacitive power converter |
| CN107733221A (en) * | 2017-10-30 | 2018-02-23 | 西安交通大学 | A kind of multiple-unit coupling inductance switched capacitor network high-gain DC converter |
| CN109768725A (en) * | 2019-03-06 | 2019-05-17 | 武汉大学 | A single-phase non-isolated photovoltaic grid-connected inverter topology |
-
2015
- 2015-11-26 CN CN201520953889.5U patent/CN205123579U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827115A (en) * | 2016-04-25 | 2016-08-03 | 国网北京市电力公司 | DC step-up circuit, step-up method and transformer |
| CN105827115B (en) * | 2016-04-25 | 2019-02-26 | 国网北京市电力公司 | Direct current booster circuit, boosting method and transformer |
| CN105958816A (en) * | 2016-05-30 | 2016-09-21 | 西安交通大学 | Multi-unit diode capacitor network and coupling inductor high-gain DC converter |
| CN106602867A (en) * | 2017-03-08 | 2017-04-26 | 广东工业大学 | High-gain switch capacitive power converter |
| CN107733221A (en) * | 2017-10-30 | 2018-02-23 | 西安交通大学 | A kind of multiple-unit coupling inductance switched capacitor network high-gain DC converter |
| CN109768725A (en) * | 2019-03-06 | 2019-05-17 | 武汉大学 | A single-phase non-isolated photovoltaic grid-connected inverter topology |
| CN109768725B (en) * | 2019-03-06 | 2020-08-07 | 武汉大学 | A single-phase non-isolated photovoltaic grid-connected inverter topology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106059306B (en) | A kind of multiple-unit diode capacitance network high-gain full-bridge isolated DC converter | |
| CN203261235U (en) | High-gain SEPIC converter | |
| CN206211844U (en) | The new two-way DC/DC converters of crisscross parallel | |
| CN105958816B (en) | A kind of multiple-unit diode capacitance network and coupling inductance high-gain DC converter | |
| CN103929058A (en) | Two-Phase Interleaved Parallel Converter Based on Coupled Inductors | |
| CN207269198U (en) | A high-gain dual-input DC converter based on capacitor series-parallel structure | |
| CN205123579U (en) | High -gain DC -DC photovoltaic booster converter based on coupling inductance | |
| CN105896993A (en) | High-gain isolation type direct-current converter for multi-unit diode capacitor network | |
| CN110649805B (en) | High-gain Boost converter | |
| CN104734188A (en) | Voltage high-gain photovoltaic grid-connected inverter main circuit topology | |
| CN103117650A (en) | Quasi Z source inverter | |
| CN111786555A (en) | Zero-ripple high-gain DC-DC converter based on a new boost unit | |
| CN108233713B (en) | A non-isolated three-port DC switching converter and its control method | |
| CN210724563U (en) | T gamma novel boost DC-DC converter topology | |
| CN106208682A (en) | High-gain non-isolated input-series and output-parallel Cuk type Combined vertical current converter | |
| CN106452153B (en) | A kind of variable topological Trans-Z source inventers | |
| CN109921638B (en) | Double-switch high step-up ratio direct current converter | |
| CN204068702U (en) | A kind of non-isolation type high-gain DC/DC converter | |
| CN203691231U (en) | High gain converter suitable for photovoltaic or fuel cell power generation system | |
| CN205847086U (en) | A kind of switching capacity type high-gain quasi-Z source DC DC changer | |
| CN203775028U (en) | Two-phase staggered parallel converter based on coupling inductors | |
| CN209200934U (en) | Direct-current three-level boost converter fusing coupling inductance technology | |
| CN106849731A (en) | A kind of control method of buck-boost grid-connected inverter | |
| CN106100324B (en) | High-gain DC booster converter based on the positive clamper of diode | |
| CN110943617A (en) | Circuit topological structure of double-switch type DC/DC converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20181126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |