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Nowadays, the development of smart grid is getting more and more attention, and microgrid, as an important part of smart distribution network, is inevitably valued and promoted
by many countries.
The grid adjustment based on the microgrid structure can facilitate the large-scale interconnection of distributed energy resources and access to the medium and low voltage distribution system, and provide a mechanism
for making full use of distributed energy power generation.
The microgrid can be used as the third level power grid
after the transmission and distribution networks.
Compared to current large power grids, this structure has significant socio-economic and environmental benefits
.
By establishing microgrids, distributed generation can be applied to the power system and reach its maximum potential
.
Smart microgrid is an important component of distributed power source, which refers to the connection of various different types of distributed power sources and energy storage devices through a certain grid structure to form a mini-grid system
.
Microgrids can either be operated in parallel with the main network through contact transformers, or they can be operated in isolation by disconnecting contact transformers
.
By controlling the power transmission of the contact transformer, the impact of microgrid access on the main grid can be reduced, and the distributed power generation in the microgrid can be fully utilized to improve the utilization rate of small power sources, especially the new clean energy power generation that has attracted much attention, such as wind power and photovoltaic power generation
.
It is reported that when the load of the microgrid increases to the point that a variety of distributed energy resources cannot meet their electricity demand, the power is transmitted to it by the external power grid; When the output of a variety of distributed energy resources is greater than the load demand, the excess energy can be transferred to the energy storage device, or the output
of a variety of distributed energy resources can be reduced.
Nowadays, the development of smart grid is getting more and more attention, and microgrid, as an important part of smart distribution network, is inevitably valued and promoted
by many countries.
The grid adjustment based on the microgrid structure can facilitate the large-scale interconnection of distributed energy resources and access to the medium and low voltage distribution system, and provide a mechanism
for making full use of distributed energy power generation.
The microgrid can be used as the third level power grid
after the transmission and distribution networks.
Compared to current large power grids, this structure has significant socio-economic and environmental benefits
.
By establishing microgrids, distributed generation can be applied to the power system and reach its maximum potential
.
Smart microgrid is an important component of distributed power source, which refers to the connection of various different types of distributed power sources and energy storage devices through a certain grid structure to form a mini-grid system
.
Microgrids can either be operated in parallel with the main network through contact transformers, or they can be operated in isolation by disconnecting contact transformers
.
By controlling the power transmission of the contact transformer, the impact of microgrid access on the main grid can be reduced, and the distributed power generation in the microgrid can be fully utilized to improve the utilization rate of small power sources, especially the new clean energy power generation that has attracted much attention, such as wind power and photovoltaic power generation
.
It is reported that when the load of the microgrid increases to the point that a variety of distributed energy resources cannot meet their electricity demand, the power is transmitted to it by the external power grid; When the output of a variety of distributed energy resources is greater than the load demand, the excess energy can be transferred to the energy storage device, or the output
of a variety of distributed energy resources can be reduced.
