Despite of its numerous advantages and extensive applications, DC microgrid is still relatively a novel technology and its grid architectures, control strategies, stabilization techniques and so on deserve tremendous research efforts. In both European and French scales, as more and more renewable DC microgrids being and to be installed, the efficiency, the monitoring and maintenance, the durability of those systems are becoming more and more important concerns.
As DC microgrids involve numerous energy sources, storage units and different types of loads according to the involved applications, the efficiency and reliability of the whole system is dependent on multiple factors, as the characteristics of the adopted sources, climatic conditions and load profiles. Numerous studies have been proposed to improve the efficiency and reliability of the DC microgrids. However, the studies on efficiency improvement are usually in the condition that all the elements in the system are in healthy state; the studies on reliability improvement are oriented to recover the functionality of the system when an occurred fault has been detected and identified. Several questions are raised naturally when the efficiency and reliability of DC microgrids are jointly considered.
Objectives:
- Development of an advanced energy management strategy (EMS) to improve the system operational efficiency;
- Development of an online health management strategy (HMS) to enhance the system reliability;
- Interaction of the EMS and HMS for both short-term and long-term efficient and reliable operation.