Research on Wind, Solar, Diesel and Storage Microgrid System
Abstract
With the development of human society, the destruction of human beings to nature is
more and more serious, relying too much on fossil energy such as coal and oil to supply
energy, various environmental problems are gradually emerging, and people are beginning to
pay more attention to environmental problems. The power generation of renewable energy
such as wind energy and light energy is getting more and more attention and application.
Micro-grid is a small-scale power generation and distribution system, which is
composed of distributed power module, energy storage module, load module and monitoring
and protection module. It is also called micro-grid. Due to the lack of resources and air
pollution, the new energy power generation technology using wind energy and solar energy
has become the goal of scientific research. In order to realize the flexibility and efficiency of
the distributed power and solve various different problems of the grid connection of the
distributed power, we propose a wind and diesel micro grid system. The wind and diesel
micro grid system includes solar power module, wind power module, diesel generator power
module, energy storage device module, load module and micro grid connecting them. In
order to promote the close connection between distributed power generation and renewable
new energy and realize the reliability of various load power supply, we develop, design and
expand the distributed power supply to find a reasonable maintenance mode. Micro-grid
connects the traditional grid to the smart grid.
The wind and diesel micro grid system can effectively solve the problem of
long-distance power supply which can not be reached by the ordinary grid. Although it has
many advantages, it does not support the backup energy storage of the large grid. At the same
time, the power supply of wind and solar energy is not stable, with intermittent volatility,
which is greatly affected by the natural environment factors. Therefore, the reasonable
configuration of the micro grid has also been studied Emphasis. The reasonable configuration
of micro-grid reduces the construction cost and generation cost, improves the reliability of
power supply, reduces the power loss between loads, and plays an important role in the
optimization of micro-grid.
At the beginning, the purpose and significance of micro-grid system, its application
fields, development trends and prospects at home and abroad, and the main problems to be
solved in this paper are studied.
Secondly, the principles of wind power generation, photovoltaic power generation and
diesel engine power generation are discussed, and then the structure of the micro grid system
is discussed, and then the modeling of each module is studied.
Finally, the system is simulated to solve the problems to be proposed, and a conclusion
is drawn.
Keywords: environmental issues; micro-grid; wind and diesel storage micro-grid; renewable
energy; smart grid; intermittent; volatility; optimization