East China Energy Supervision Bureau Microgrid Project

Do Island microgrids work in the East China Sea?

Three representative island microgrids in the East China Sea are demonstrated. Key technologies such as control technology and energy management for island microgrids are studied. Renewable energy penetration is discussed for the design and operation of island microgrids.

Where are microgrids located in China?

Three stand-alone island microgrids with distinctive features have been built and are operating normally, which are located in the Dongfushan, Beiji, and Nanji islands along the Zhejiang coast, as shown in Fig. 1. The three islands are about 40–80 km apart. Particularly, Dongfushan is the farthest eastern inhabited island in China.

Where is the Dongao microgrid built?

In China, the Dongao microgrid is built on an island in the South China Sea , which comprises an ESS of 500 kW, WTs of 750 kW, and a DE of 1 MW. A hierarchical control strategy is proposed to maintain the frequency stability on multiple time scales. The different types of island microgrids are summarized in Table 1.

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.

Is Microgrid technology a solution to the energy shortage?

A potential solution to the energy shortage or high energy cost in these islands is to increase the use of renewable energy to promote a sustainable development . The development of microgrid technology provides effective solutions to these problems.

Which island microgrids are based on yearly operation data?

Specifically, the analysis of Dongfushan Island, Nanji Island, and Beiji Island is based on the yearly operation data of 2012, 2015, and 2015, respectively. Fig. 17 shows the detailed monthly data of the three island microgrids. The PV generation on Beiji Island is split into two parts, PV-actual and PV-other, as shown in Fig. 17 (c).