Voltage boosting device applied to multi-channel MPPT unit structure inverter

A technology of pressurizing device and unit structure, which is applied in the direction of single-net parallel feeding arrangement, etc., can solve the problems of multiple failure points and high cost, and achieve the effect of high economic value, simple structure and cost reduction.

Pending Publication Date: 2019-11-15
SHANGHAI ZHIWEI ENVIRONMENTAL TECH
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Problems solved by technology

But this method is costly and has one more point of failure

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  • Voltage boosting device applied to multi-channel MPPT unit structure inverter

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0021] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

[0022] see figure 1 , a pressurization device applied to multi-channel MPPT unit structure inverters, including a pressurization assembl...

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Abstract

The invention discloses a voltage boosting device applied to a multi-channel MPPT unit structure inverter. The voltage boosting device is characterized in that the voltage boosting device includes atleast one MPPT unit and a voltage boosting assembly; the voltage boosting assembly includes a voltage detection module, a control module, a voltage boosting module and first diodes; first electrodes of the MPPT units are conductively connected, a second electrode of each MPPT unit is conductively connected with the positive electrode of a different first diode, and the negative electrodes of the first diodes are connected in parallel and then conductively connected with a second electrode access end of the voltage detection module; the first electrode of any MPPT unit is conductively connectedwith a first electrode access end of the voltage detection module and the voltage boosting output end of the voltage boosting module; and the first or second electrode is either a positive electrodeor a negative electrode. The voltage boosting device has a simple structure, and the cost of the device is not much different from the cost of a device with only one MPPT unit at present and is far lower than the cost of the scheme adopting a test device for multiple MPPT units one by one. The function remains unchanged while the structure is simplified and the cost is lowered.

Description

technical field [0001] The invention relates to the field of photovoltaic power generation, in particular to a pressurizing device applied to inverters with multi-channel MPPT unit structures. Background technique [0002] The PID (Potential Induced Decay) phenomenon of solar power plants is that during the outdoor application of solar cell components, because the solar cell has a certain potential to the ground, external positive ions or negative ions appear on the surface of the cell, which affects the p of the cell surface. / n junction distribution, causing power attenuation phenomenon. The PID phenomenon of solar cells can be prevented and restored by applying a positive or negative voltage between the module and the ground (the positive voltage is used as an example below). [0003] During the day, the voltage of the solar cell is relatively high, and at night, the voltage of the solar cell is relatively low. In order for the pressurization equipment to judge whether ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
Inventor 刘志刚蒋海江邓长贤白小康杜年虎
Owner SHANGHAI ZHIWEI ENVIRONMENTAL TECH
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