CN201352761Y - Voltage booster circuit topological structure - Google Patents
Voltage booster circuit topological structure Download PDFInfo
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- CN201352761Y CN201352761Y CNU2009201429485U CN200920142948U CN201352761Y CN 201352761 Y CN201352761 Y CN 201352761Y CN U2009201429485 U CNU2009201429485 U CN U2009201429485U CN 200920142948 U CN200920142948 U CN 200920142948U CN 201352761 Y CN201352761 Y CN 201352761Y
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Abstract
本实用新型涉及一种升压电路拓扑结构，包括有boost升压电路，所述的boost升压电路与太阳能或风能的输入侧和boost升压电路与逆变电路的输出侧之间并联安装一接触器。所述的接触器为可控接触器。本实用新型能有效提高中小型可再生能源发电系统中逆变电路转换效率，减少器件损耗。
The utility model relates to a topological structure of a boost circuit, comprising a boost boost circuit, the boost boost circuit is installed in parallel with the input side of solar energy or wind energy, and the boost boost circuit and the output side of an inverter circuit. contactor. The contactor is a controllable contactor. The utility model can effectively improve the conversion efficiency of an inverter circuit in a small and medium-sized renewable energy power generation system and reduce device loss.
Description
技术领域 technical field
本实用新型涉及一种具有旁路功能的升压电路结构。The utility model relates to a boost circuit structure with a bypass function.
背景技术 Background technique
在中小功率逆变应用场合，如小型光伏或者风力发电站所采用的逆变器设计，为了追求最大输入功率，大多采用升压boost电路结构来来调节输入电压，满足逆变器正常工作需要和对最大功率点的跟踪，但是这种升压电路结构有一个缺点，即无论输入电压大小，都时刻处于工作状态，这样就增加了器件损耗，降低了转换效率。In the application of small and medium power inverters, such as the design of inverters used in small photovoltaic or wind power stations, in order to pursue the maximum input power, most of them use boost circuit structure to adjust the input voltage to meet the needs of normal operation of the inverter and Tracking of the maximum power point, but this boost circuit structure has a disadvantage, that is, it is always in the working state regardless of the input voltage, which increases the loss of the device and reduces the conversion efficiency.
实用新型内容 Utility model content
本实用新型针对现有技术的不足，设计开发出了一种有效提高中小型可再生能源发电系统中逆变电路转换效率，减少器件损耗的升压电路拓扑结构。Aiming at the deficiencies of the prior art, the utility model designs and develops a topology structure of a booster circuit that can effectively improve the conversion efficiency of an inverter circuit in a small and medium-sized renewable energy power generation system and reduce device loss.
本实用新型是通过以下技术方案实现的：The utility model is achieved through the following technical solutions:
一种升压电路拓扑结构，包括有boost升压电路，所述的boost升压电路与太阳能或风能的输入侧和boost升压电路与逆变电路的输出侧之间并联安装一接触器。A boost circuit topology, including a boost boost circuit, a contactor is installed in parallel between the boost boost circuit and the input side of solar energy or wind energy, and between the boost boost circuit and the output side of the inverter circuit.
一种升压电路拓扑结构，所述的接触器为可控接触器。A boost circuit topology, the contactor is a controllable contactor.
本实用新型设计了一种可控的带有旁路功能的Boost电路，使得在输入电压高的情况下，升压电路不工作，而在输入电压低的情况下，升压电路才工作，这样就可以满足高效率转换的需求。Boost升压电路在小功率的时候工作，而在输入电压满足要求的时候被旁路，直接馈送给后级逆变电路，这样就会提高光电转换效率，也降低了器件损耗。此种电路结构不同与常规的Boost升压电路，具有明显的优势：降低了Boost升压电路的功率消耗，仅在输入低电压时工作；减少了输入侧电压较高时的电抗器和二极管的功率损耗(此时这两个元件被旁路)；不需要增加检测电路，可以利用原有检测电路，只需要在逆变系统控制器加一个逻辑判断就可以轻松实现。该电路拓扑结构可用于动态输入范围很宽的场合，如小功率光伏、风力发电等等方面。The utility model designs a controllable Boost circuit with a bypass function, so that the boost circuit does not work when the input voltage is high, and the boost circuit works only when the input voltage is low. It can meet the demand of high efficiency conversion. The boost circuit works at low power, and is bypassed when the input voltage meets the requirements, and is directly fed to the subsequent inverter circuit, which will improve the photoelectric conversion efficiency and reduce device loss. This circuit structure is different from the conventional Boost circuit, and has obvious advantages: it reduces the power consumption of the Boost circuit and only works when the input voltage is low; it reduces the reactor and diode when the input side voltage is high. Power loss (these two components are bypassed at this time); there is no need to increase the detection circuit, the original detection circuit can be used, and it can be easily realized by adding a logic judgment to the inverter system controller. The circuit topology can be used in occasions with a wide dynamic input range, such as low-power photovoltaics, wind power generation, and the like.
附图说明 Description of drawings
附图为电路结构示意图。The accompanying drawing is a schematic diagram of the circuit structure.
具体实施方式 Detailed ways
参见附图所示。See attached picture.
本实用新型包括有boost升压电路，boost升压电路与太阳能或风能的输入侧和boost升压电路与逆变电路的输出侧之间并联安装一可控接触器1。在常规升压boost电路上，在输入与输出侧之间并联安装了一个可控接触器1。此接触器1接受控制电路控制。当检测输入电压较低时，接触器1处于断开位置，输入侧直流电压经Boost升压电路升高后供后备电路使用；当直流开路电压足够时，接触器1导通，将DC-DC升压电路旁路，开关管关断，输入侧直流电压直接接入后备逆变电路，此时DC-DC升压电路不工作。The utility model includes a boost boost circuit, and a controllable contactor 1 is installed in parallel between the boost boost circuit and the input side of solar energy or wind energy, and the boost boost circuit and the output side of the inverter circuit. On a conventional boost circuit, a controllable contactor 1 is installed in parallel between the input and output sides. This contactor 1 is controlled by the control circuit. When the detected input voltage is low, the contactor 1 is in the disconnected position, and the DC voltage on the input side is raised by the Boost circuit to be used by the backup circuit; when the DC open circuit voltage is sufficient, the contactor 1 is turned on, and the DC-DC The boost circuit is bypassed, the switching tube is turned off, and the DC voltage on the input side is directly connected to the backup inverter circuit. At this time, the DC-DC boost circuit does not work.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201429485U CN201352761Y (en) | 2009-02-05 | 2009-02-05 | Voltage booster circuit topological structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201429485U CN201352761Y (en) | 2009-02-05 | 2009-02-05 | Voltage booster circuit topological structure |
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| CN201352761Y true CN201352761Y (en) | 2009-11-25 |
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| CNU2009201429485U Expired - Lifetime CN201352761Y (en) | 2009-02-05 | 2009-02-05 | Voltage booster circuit topological structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312161A (en) * | 2013-07-04 | 2013-09-18 | 清源科技（厦门）股份有限公司 | Grid-tied photovoltaic inverter Boost circuit |
| CN104158208A (en) * | 2014-07-15 | 2014-11-19 | 阳光电源股份有限公司 | Single-stage photovoltaic grid-connected inverter, as well as control method and application thereof |
| CN113824325A (en) * | 2021-08-17 | 2021-12-21 | 广州金升阳科技有限公司 | Two-stage type switching power supply circuit |
| WO2022188131A1 (en) * | 2021-03-12 | 2022-09-15 | Commscope Technologies Llc | Voltage boost circuitry for radio systems |
-
2009
- 2009-02-05 CN CNU2009201429485U patent/CN201352761Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312161A (en) * | 2013-07-04 | 2013-09-18 | 清源科技（厦门）股份有限公司 | Grid-tied photovoltaic inverter Boost circuit |
| CN104158208A (en) * | 2014-07-15 | 2014-11-19 | 阳光电源股份有限公司 | Single-stage photovoltaic grid-connected inverter, as well as control method and application thereof |
| WO2016008382A1 (en) * | 2014-07-15 | 2016-01-21 | 阳光电源股份有限公司 | Single-stage photovoltaic grid-connected inverter and control method and application thereof |
| WO2022188131A1 (en) * | 2021-03-12 | 2022-09-15 | Commscope Technologies Llc | Voltage boost circuitry for radio systems |
| CN113824325A (en) * | 2021-08-17 | 2021-12-21 | 广州金升阳科技有限公司 | Two-stage type switching power supply circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEFEI SUNGROW POWER SUPPLY CO., LTD. Free format text: FORMER NAME: HEFEI SUNLIGHT POWER SUPPLY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: High tech Zone of Hefei city of Anhui Province in 230088 Lake Road No. 2 Patentee after: SUNGROW POWER SUPPLY Co.,Ltd. Address before: High tech Zone of Hefei city of Anhui Province in 230088 Lake Road No. 2 Patentee before: Hefei sunshine power Limited by Share Ltd. Address after: High tech Zone of Hefei city of Anhui Province in 230088 Lake Road No. 2 Patentee after: Hefei sunshine power Limited by Share Ltd. Address before: High tech Zone of Hefei city of Anhui Province in 230088 Lake Road No. 2 Patentee before: Hefei Sungrow Power Supply Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |