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MPPT controller, power tracking device, photovoltaic power generation and energy storage system

A power tracking and controller technology, applied in the field of solar power generation, can solve problems such as total power loss, and achieve the effects of reducing hardware costs, reducing ripple current, and saving hardware resources

Active Publication Date: 2014-01-22
SHENZHEN HOPEWIND ELECTRIC CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a MPPT technology for the defect that the total power loss will be caused when the lighting conditions of the local photovoltaic cells are inconsistent at the same time due to the difference in the installation elevation angle of the photovoltaic cells and the partial shading of the existing MPPT technology. A kind of MPPT controller, power tracking device, photovoltaic power generation and energy storage system

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  • MPPT controller, power tracking device, photovoltaic power generation and energy storage system
  • MPPT controller, power tracking device, photovoltaic power generation and energy storage system

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Embodiment Construction

[0052] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0053] see image 3 Shown is the structural diagram of the MPPT controller of the embodiment of the present invention.

[0054] The MPPT controller 3 of the embodiment of the present invention includes a first filter capacitor C1 , a first Boost unit 31 , a second Boost unit 32 and a second filter capacitor C2 . Wherein, the first filter capacitor C1 filters the direct current input to the MPPT controller. Both the first Boost unit 31 and the second Boost unit 31 include two input terminals, two output terminals and a control input terminal. The first filter capacitor C1 is connected between the first input terminal and the second input terminal of the first Boost unit 31; the first input terminal of the second Boost ...

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Abstract

The invention discloses a MPPT controller, a power tracking device and a photovoltaic power generation and energy storage system. The MPPT controller comprises a first filter capacitor, a second filter capacitor, a first Boost unit and a second Boost unit. According to the MPPT controller, the power tracking device and the photovoltaic power generation and energy storage system, the power generation efficiency of the photovoltaic power generation system can be improved, the ripple current of an input capacitance and the ripple current of an output capacitance are reduced, the capacity of the capacitances is reduced, the hardware cost can be further reduced, the new interleaving parallel technology is adopted, the computing times of a main control unit are reduced, and the hardware resources of the control unit are saved.

Description

technical field [0001] The invention relates to the technical field of solar power generation, and more specifically, to an MPPT controller, a power tracking device, a photovoltaic power generation and an energy storage system. Background technique [0002] With the increasing scale of photovoltaic grid-connected power generation system, the installed capacity of the largest photovoltaic power station in China has reached 100MW, covering an area of ​​more than 200 hectares. [0003] The photovoltaic grid-connected power generation system is composed of photovoltaic cells, photovoltaic inverters and other parts. The output of photovoltaic cells is a nonlinear DC power supply, and its P-V curve is nonlinear. When the working voltage of the photovoltaic cell changes, its output power will also change. In order to improve the energy conversion efficiency of the photovoltaic grid-connected power generation system, it is necessary to use the maximum power point tracking (Max Pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/67
CPCY02E10/58Y02E10/56
Inventor 陈高曾建友陈鑫
Owner SHENZHEN HOPEWIND ELECTRIC CO LTD
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