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Photovoltaic power generation micro electric network system and maximum power tracking method

A technology of maximum power tracking and micro-grid, applied in photovoltaic power generation, system integration technology, neural learning methods, etc., can solve problems such as poor stability and large power loss, achieve reliable power, improve safety and efficiency

Inactive Publication Date: 2012-06-13
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

The most commonly used MPPT methods are perturbation and observation (P&O) and incremental conductance (INC), but there are disadvantages such as poor stability and large power loss.

Method used

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  • Photovoltaic power generation micro electric network system and maximum power tracking method
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  • Photovoltaic power generation micro electric network system and maximum power tracking method

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Embodiment Construction

[0044] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0045] The structure of the invention includes a photovoltaic cell assembly, a micro-inverter, a protection isolation device, a load, a micro-grid bus and an energy monitoring center. Each photovoltaic cell module is connected to a micro-inverter one-to-one; one end of each micro-inverter is connected to the corresponding photovoltaic cell module, and the other end is connected to the micro-grid bus; the energy monitoring center and the load are connected to the micro-grid bus One end of the protection isolation device is connected to the micro-grid bus, and the other end is connected to the external network bus; between the energy monitoring center and each micro-inverter, and between the energy monitoring center and ...

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Abstract

The invention discloses a photovoltaic power generation micro electric network system and a maximum power tracking method, belonging to the technical field of distributed power generation and electric power network monitoring. The photovoltaic power generation micro electric network system consists of a distributed photovoltaic battery component, a load, a micro inverter, an energy monitoring center, a micro-grid bus and a protective isolation device. The photovoltaic power generation micro electric network system disclosed by the invention can increase the safety and the efficiency of the photovoltaic power generation micro electric network system.

Description

technical field [0001] The invention belongs to the technical field of distributed power generation and power network monitoring, and in particular relates to a photovoltaic power generation micro-grid system and a maximum power tracking method. Background technique [0002] With the rapid growth of the global economy, the demand for electricity is gradually increasing, which leads to the continuous expansion of the grid scale. The drawbacks of the traditional ultra-large-scale power system are becoming more and more prominent: on the one hand, due to the large scale and complex structure, the flexibility of power grid dispatching operation is poor, and it is difficult to guarantee the increasingly high security and reliability requirements of the economic society for the power grid; The depletion of energy and the deterioration of the earth's environment have brought challenges to the development of the power system. How to ensure the sustainable development of power has be...

Claims

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Application Information

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IPC IPC(8): H02J3/38G06N3/08
CPCY04S10/545Y02E10/58Y02E40/76Y02E10/563Y02E10/56Y02E40/70Y04S10/50
Inventor 刘卫亮林永君刘长良陈文颖
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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