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Multiple-switching-circuit controllable photovoltaic cell

A photovoltaic unit and multi-switch technology, which is applied in the field of solar photovoltaic units, can solve the problems of photovoltaic units without multi-switch circuits, and achieve the effects of ingenious design, increased power generation, and simple structure

Inactive Publication Date: 2015-09-02
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After searching, in the existing solar photovoltaic power generation system, there is no invention of multi-switch circuit controllable photovoltaic unit

Method used

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  • Multiple-switching-circuit controllable photovoltaic cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 As shown, a multi-switch circuit controllable photovoltaic unit, which includes a first photovoltaic module 1, a second photovoltaic module 2, a third photovoltaic module 3, a relay controllable normally closed contact 4, 5, 6, 7, a relay The controllable normally open contacts 8 and 9, the inverter 13, and the first power monitoring remote transmitter 10, the second power monitoring remote transmitter 11, and the third power monitoring remote transmitter that can monitor the power generation status of the photovoltaic modules 1-3 in real time The remote transmitter 12, the first photovoltaic component 1, the second photovoltaic component 2, and the third photovoltaic component 3 are composed of a single photovoltaic component, or a string of multiple photovoltaic Photovoltaic unit with controllable switch circuit; relay controllable normally closed contacts 4, 5, 6, 7 or replace with controllable normally open contacts, while relay controllable normall...

Embodiment 2

[0022] The difference from Embodiment 1 is that the first volt component 1, the second volt component 2, and the third volt component 3 are composed of component strings with the same number of photovoltaic components connected in series, or controlled by the same multi-switch circuit Composition of photovoltaic units; the first power monitoring remote transmitter 10, the second power monitoring remote transmitter 11, and the third power monitoring remote transmitter 12 respectively monitor the first volt component 1, the second volt component 2, and the third volt component 3 The real-time power generation status of the relay is controlled by the single-chip microcomputer to regulate the connection status of the relay controllable normally closed contacts 4, 5, 6, 7, and the relay controllable normally open contacts 8 and 9.

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Abstract

The invention discloses a multiple-switching-circuit controllable photovoltaic cell, which comprises first photovoltaic assemblies (1-3), relay controllable normally closed contacts (4-7), relay controllable normally open contacts (8-9), and an inverter (13), and further comprises power monitoring remote transmitters (10-12) for monitoring electricity generating states of the photovoltaic assemblies (1-3) in real time. The real-time electricity generating states of the photovoltaic assemblies (1-3) are monitored by the power monitoring remote transmitters (10-12); data is remotely transferred to a computer or a single-chip microcomputer for processing and analysis; different states of the relay controllable normally closed contacts (4-7) and relay controllable normally open contacts (8-9) are modulated to reach different connection modes of series connection, parallel connection, and combination of series connection and parallel connection through manual or wireless operation; and the photovoltaic assemblies are connected to an input of the inverter. The multiple-switching-circuit controllable photovoltaic cell is simple in structure and smart in design, and has an advantage of flexibly improving generating capacity of a solar photovoltaic power generation system.

Description

technical field [0001] The invention relates to a solar photovoltaic unit, in particular to a photovoltaic unit with controllable multi-switch circuits. Background technique [0002] The conventional solar photovoltaic power generation unit achieves the rated output voltage through the series connection of multiple photovoltaic modules, and then expands the capacity through the parallel connection of multiple series series photovoltaic modules, and then connects to the inverter to form a solar power generation system. The circuit structure of the photovoltaic cell of the system is usually fixed, once the intensity of sunlight decreases, the output voltage of the photovoltaic unit will decrease accordingly. When the output voltage is lower than the minimum input voltage of the inverter, the inverter cannot supply power to the external grid. [0003] After searching, in the existing solar photovoltaic power generation system, there is no invention of photovoltaic unit with mu...

Claims

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Application Information

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IPC IPC(8): H02S40/36
CPCH02J3/383H02J13/0017Y02E10/56
Inventor 海涛闻科伟张朝林波胡翔
Owner GUANGXI UNIV