Operational Reliability Evaluation of Distributed Multi-energy Systems Considering Optimal Control of Energy Storages

Distributed multi-energy system (DMES) provides a flexible option to coordinate multiple energies, e.g., electricity, gas, heating, and cooling, to realize a more optimal operation. However, the tight interconnection of multiple energies may bring challenges to maintaining its reliability. The previous studies mainly focus on long-term reliability, which cannot reflect the time-varying reliability during the operation. This paper proposes an operational reliability evaluation approach for the DMES. Firstly, the operational reliability models of two typical types of components in the DMES are established. Then, an optimal control problem when the components fail is formulated. Moreover, the time-sequential Monte Carlo simulation technique is utilized to evaluate the operational reliability. Finally, a test case is used to validate the proposed reliability evaluation technique.