Solar cell outputting high voltage

A solar cell and high-voltage technology, applied in the field of solar cells, can solve problems such as reduced energy conversion efficiency, electromagnetic interference, and high voltage stress of switching devices, so as to reduce conduction loss and switching loss, reduce voltage stress, and improve work efficiency Effect

Inactive Publication Date: 2015-08-26
武汉绿鼎天舒科技发展有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 switching devices, which will bring electromagnetic interference and other effects, resulting in large operating losses of the converter.
[0007] The third is to add cascaded boost units, the more units, the greater the voltage gain, but the more circuit components, the more complex the structure
However, this boost circuit requires too many components such as switches, capacitors, and diodes, resulting in a complex circuit structure and high cost.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Solar cell outputting high voltage
  • Solar cell outputting high voltage
  • Solar cell outputting high voltage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to make the technical solution of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and the specific implementation process.

[0033] The invention provides a high-voltage output solar cell, which includes a light collection conversion module and a boost module.

[0034] Depend on image 3 It can be seen that the low-voltage switching stress booster circuit of the present invention includes the input voltage Vin of the optical collection 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 switching devices, switching elements S1 and S2 respectively have parasitic capacitance C S1 、C S2 .

[0035] combined with image 3 The structure of the present invention is described in detail. The specific connection relationship is as follows: the positive pol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a solar cell outputting high voltage. The solar cell comprises a light acquisition and conversion module and a voltage boosting module. The voltage boosting module is composed of a voltage boosting circuit reducing voltage switching stress. The voltage boosting circuit reducing voltage switching stress comprises voltage Vin inputted by the light acquisition and conversion module, switching elements S1 and S2, diodes D1 and D2, an inductor L, an input capacitor C1, an intermediate capacitor C2 and an output capacitor C0. An input power supply generates input voltage Vin. The switching elements S1 and S2 are respectively provided with a parasitic capacitor CS1 and a parasitic capacitor CS2. Output voltage of the solar cell is enhanced by controlling on and off of the switching elements S1 and S2, and energy loss is also reduced.

Description

【Technical field】 [0001] The invention relates to a solar cell with high output voltage, in particular to a solar cell with reduced voltage switch stress and 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 practical required high voltage direct current. Therefore, a boost converter with high gain and stable performance has become a research hotspot, which is of great significance to promote the development of the photovoltaic cell industry. [0003] The most basic boost converter is a single-transistor Boost converter. However, the boost range of this converter is very limited, it is difficult to meet the conversion requirements of high gain, and the voltage stress of the switch...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H02S40/30
CPCH02S40/00Y02E10/50
Inventor 杨慧萌
Owner 武汉绿鼎天舒科技发展有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products