Photovoltaic power generation microgrid system of energy internet

A technology of energy Internet and photovoltaic power generation, applied in the research field of microgrid system and its control algorithm, can solve problems such as unstable output power, power generation affected by time, and power quality of the grid

Inactive Publication Date: 2018-09-07
烟台仙崴机电有限公司
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  • Abstract
  • Description
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Problems solved by technology

However, the distributed photovoltaic power generation system is an uncontrollable power source for the large power grid. Its power generation is seriously affected by time and weather, and its output power is unstable, which is not conducive to the regulation and operation of the power grid, and will also affect the power grid. Power Quality

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  • Photovoltaic power generation microgrid system of energy internet
  • Photovoltaic power generation microgrid system of energy internet
  • Photovoltaic power generation microgrid system of energy internet

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Embodiment Construction

[0016] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0017] figure 1 The overall schematic diagram of the energy internet photovoltaic power generation microgrid system of the present invention is given. In the distributed photovoltaic power generation system, as the energy source of the system, the photovoltaic panel converts the solar energy generated by the sunlight irradiated on the panel into electrical energy, which is the only source of clean energy for the entire experimental system. Since the external lighting environment is often disturbed by uncertain factors, floodlights are usually used to simulate the lighting environment in actual experiments. MPPT control algorithm needs to undertake different functions in different systems. In the off-grid system, when the output power of this unit is greater than the sum of the load energy demand and the maximum charging power of the energy storage unit, i...

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Abstract

The invention discloses a photovoltaic power generation microgrid system of energy internet, and belongs to the field of the new energy power generation and the microgrid. Compared with the traditional offline microgrid system, the photovoltaic power generation microgrid system can increase the power supply reliability of the system, and an energy storage unit can reduce the influence on the powergrid by the system. The photovoltaic power generation microgrid system is composed of a photovoltaic battery panel, a MPPT controller, an energy storage battery pack, an inverter, and a DC load. Themicrogrid system disclosed by the invention is the grid-connected operation system with the energy storage capacity, and has the capacity of regulating the grid-connected active power and the reactivepower distribution.

Description

technical field [0001] The invention relates to the fields of new energy power generation and micro-grid, and in particular to the research of the micro-grid system and its control algorithm. Background technique [0002] At present, the most widely used distributed photovoltaic power generation system is the photovoltaic system installed on the roof of the big city. This application is an important means for people to utilize solar energy. It is generally connected to the public grid and supplies power to power users together with the public grid. Whether it is centralized power supply or distributed power supply, the power quality and reliability of power supply must be guaranteed. However, due to the easy change of lighting conditions and other reasons, the output power of the off-grid photovoltaic power generation system is unstable and cannot guarantee that the power supply demand can be continuously met. When the distributed photovoltaic power generation system is co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/32
CPCH02J3/32H02J3/383Y02E10/56Y02E70/30
Inventor 陈昊王星
Owner 烟台仙崴机电有限公司
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