Xikai Microgrid Layout

What is a microgrid layout?

The layout defines how microgrids are interconnected. In this sense, the EPS must ensure a good performance of interconnected system. An important point for microgrids is that they can export or import energy from an external grid. The protection and coordination of protections have to take into account such bidirectionality of power flows.

What are the different types of microgrid projects in China?

In China, the microgrid projects that have been completed can be divided into island microgrids, remote areas microgrids, and urban area microgrids based on their geographic locations.

What is a microgrid in China?

In 2004, China began to carry out research on the concept of microgrids as proposed by the United States. This research has been based on the connection of distributed generation to large electrical grids via AC (alternating current) microgrids and the impacts of microgrids on large grids.

What is the power flow direction between microgrids and external grids?

The power flow direction between microgrids or between a microgrid and an external grid can vary depending on the local load and generation at each instant. Therefore, the EPS must take into account the power flow direction at the moment when an electrical fault occurs.

What is the future development direction of microgrids in China?

The future development direction of microgrids in China will therefore be towards an energy system that integrates electricity, gas, water, and heat resources, achieves mutual coupling, and solves the problems of efficient energy utilization and peak regulation .

What is a microgrid?

Microgrids are basically low voltage (LV, <1 kV) or medium voltage (MV, 1–69 kV) grids that can operate in grid connected mode (interconnected to an external grid) or in an isolated or islanded mode (without the support of external grids). The microgrid concept is currently being investigated.