Experience and Reflection on the Island Microgrid Experiment

What are the island microgrids?

Table 1. Summary of the island microgrids. Recently, three unique stand-alone microgrid projects have been built at Dongfushan Island, Nanji Island, and Beiji Island in the east China, with an aim to replace diesel with renewable energy to improve renewable energy utilization, enhance power supply reliability, and reduce power supply cost.

What are the research methods used in microgrids?

These include the long-term data on energy sources and loads, penetration analysis of renewable energy for such islands, methods for determining the capacity of DEs in the microgrids, approaches to selecting energy storage type and capacity, and strategies for operating the microgrids.

What are the features of island mode operation microgrids?

The complex VOLL calculation methodology creates solutions, which are as close to the real applications as possible. In this study, the most important features of island mode operation microgrids were summarized, with efficient integration of renewable power sources to the distribution system taken into account.

How a microgrid works in Russia?

In Russia, a model of the campus microgrid of Far Eastern Federal University located on Russky Island is developed , which includes a 200 kW DE, a 17 kW PV generator, a 275 kW WT, and a 200 kW flywheel energy storage. The system can operate either in parallel with the mainland energy system or can be completely isolated.

Are island microgrids a viable solution?

Island microgrid (IM) systems offer a promising solution; however, optimal planning considering diverse components and alternatives remains challenging. Using China's Yongxing Island as a case study, we propose a novel indicator system integrating economic, resilience, energy, and environmental dimensions.

How does a microgrid work?

Consumers of the microgrid are served by the grid and local generation during synchronous operation (connected mode). However, if the synchronous operation ceases, producers of the site (PV units, wind turbine or new generation facility) shall provide energy through this system (islanding mode).