Solar cell

A solar cell and electrode technology, applied in the field of solar cells, can solve problems such as energy conversion efficiency reduction, electromagnetic interference, unfavorable industrial processing, etc., to reduce conduction loss and switching loss, reduce overall loss, and increase battery efficiency Effect

Inactive Publication Date: 2015-10-21
武汉绿鼎天舒科技发展有限公司
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Problems solved by technology

At this time, the conversion process of electric energy is actually changed from the original DC-DC to DC-AC-AC-DC, and the energy conversion efficiency of the whole system is reduced.
[0006] The second is to use coupled inductors, but the structure of coupled inductors is complex, which is not conducive to industrial processing, it is difficult to ensure the consistency of the circuit, and it will cause excessive voltage stress of switchi

Method used

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[0037] In order to make the technical solution of the present invention clearer, the following further describes the present invention in detail with reference to the drawings and specific implementation process.

[0038] The solar cell provided by the present application is composed of a double-sided light-receiving light collection and conversion module connected with a booster circuit.

[0039] by image 3 It can be seen that the low-voltage switching stress boost circuit of the present invention includes the voltage Vin input by the light harvesting conversion module, switching elements S1, S2, diodes D1, D2, inductor L, input capacitor C1, intermediate capacitor C2, and output capacitor Co. Due to the characteristics of the switching device, the switching elements S1 and S2 have parasitic capacitances CS1 and CS2, respectively.

[0040] Attached image 3 The structure of the present invention will be described in detail. The specific connection relationship is: the positive term...

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Abstract

The invention discloses a solar cell. The solar cell comprises a light acquiring/switching module and a voltage increasing module. The voltage increasing module is formed by a voltage increasing circuit capable of reducing stress of a voltage switch. The voltage increasing circuit is comprises the voltage Vin input by the light acquiring/switching module, switch elements S1, S2, diodes D1, D2, an inductor L, an input capacitor C1, a middle capacitor C2 and an output capacitor Co. An input power supply generates input voltage Vin. The switch elements S1, S2 are respectively provided with stray capacitors CS1, CS2. By controlling on and off of the switch elements S1, S2, output voltage of the solar cell is increased and energy loss is reduced.

Description

【Technical Field】 [0001] The invention relates to a solar cell, in particular to a solar cell that reduces the stress of voltage switching and has a high output voltage. 【Background technique】 [0002] In the solar power generation system, since a single solar cell provides low-voltage direct current, it cannot meet the electricity demand of existing electrical equipment, nor can it meet the requirements of grid connection. Therefore, it is necessary to convert low-voltage direct current into actual The required high voltage direct current. Therefore, the boost converter with high gain and stable performance has become a research hotspot, and this research is of great significance to promote the development of the photovoltaic cell industry. [0003] The most basic boost converter is a single-tube Boost converter. However, the boost range of this kind of converter is very limited, and it is difficult to meet the high-gain conversion requirements, and the switching tube voltage str...

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Application Information

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IPC IPC(8): H02S40/30H02M3/155
CPCH01L31/02322H01L31/068H02M3/1563Y02E10/547
Inventor 杨慧萌
Owner 武汉绿鼎天舒科技发展有限公司
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