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Photovoltaic maximum energy collection device based on dynamic topological structure and method thereof

A dynamic topology, maximum energy technology, applied in photovoltaic power plants, photovoltaic power generation, photovoltaic modules and other directions, can solve problems such as the inability of electric energy to be charged into the battery, the photovoltaic system cannot work continuously, and the energy conversion efficiency of the system is reduced.

Inactive Publication Date: 2012-10-17
CHONGQING UNIV
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Problems solved by technology

However, due to the influence of sunlight, ambient temperature, and battery working conditions, the output voltage and current of the PV array change with time, and its output power output is unstable. The electric energy collected by the PV array cannot be charged into the battery due to the negative pressure difference, which reduces the energy conversion efficiency of the system

Method used

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  • Photovoltaic maximum energy collection device based on dynamic topological structure and method thereof
  • Photovoltaic maximum energy collection device based on dynamic topological structure and method thereof
  • Photovoltaic maximum energy collection device based on dynamic topological structure and method thereof

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Embodiment Construction

[0045] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0046] Such as figure 2 As shown, the photovoltaic maximum energy collection device based on the dynamic topology of the present invention is arranged between the photovoltaic array 1 and the storage battery 6, and is used to realize the maximum energy collection between the photovoltaic array 1 and the storage battery 6. The system includes BOOST / BUCK energy Transformation module 2, microprocessor controller module 3, switch module 4, battery parameter test switch 5 and photovoltaic cell parameter test switch K1;

[0047] The BOOST / BUCK energy conversion module 2 includes a BOOST module 21 and a BUCK module 22, the input ends of the BOOST module 21 and the BUCK modu...

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Abstract

The invention discloses a photovoltaic maximum energy collection device based on a dynamic topological structure, which is arranged between a photovoltaic array and a storage battery, is used for realizing the maximum energy collection between the photovoltaic array and the storage battery, and is composed of a BOOST / BUCK energy conversion module, a micro-processing controller module, a selector switch module and a system parameter collection switch module. The photovoltaic maximum energy collection method based on the dynamic topological structure adopted by the invention makes full use of avariable BUCK / BOOST topological structure frame taking a microcontroller as a core to better improve the charge collection capability of the storage battery and realize the maximum energy collection for the photovoltaic array in complex weather such as illumination, temperature and the like; and meanwhile a cheap singlechip microcomputer system is used to reduce the system cost under an application condition of dim light. In addition, the invention also discloses the photovoltaic maximum energy collection method based on the dynamic topological structure.

Description

technical field [0001] The invention relates to the field of photovoltaic equipment, in particular to a photovoltaic maximum energy collection device based on a dynamic topological structure, and also provides a method for utilizing the dynamic topological structure photovoltaic array maximum energy collection device for maximum energy collection. Background technique [0002] Photovoltaic power generation is a new type of renewable energy with broad application prospects. Independent photovoltaic power generation systems using battery energy storage are widely used in communications, field operations, and lighting in remote areas. The key to the system is to efficiently store the electrical energy collected by the photovoltaic cell components into the battery. The voltage difference charging method based on diode protection is one of the widely used charging methods. However, due to the influence of sunlight, ambient temperature, and battery working conditions, the output ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02N6/00H02S10/20
CPCY02E10/50Y02E70/30
Inventor 周静龙兴明
Owner CHONGQING UNIV
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