Fully Distributed Energy and Reserve Scheduling for Hybrid AC/DC Systems

Abstract

Purchasing reserve power in advance is an efficient approach to address intermittency of renewable energy. To promote renewables penetration level and increase cost-efficiency of bulk power system, a novel coordinated dispatch model for both energy and reserve based on conditional value-of-risk for hybrid AC/DC system is proposed in this paper. In addition, renewable generation and load centers locate separately in a large spatial range and usually are managed by different system operator. A fully distributed framework based on alternating direction method of multipliers (ADMM) is proposed in this paper to solve the schedule model in a decomposed manner, which guarantees low calculation burden and the privacy information of each subsystem. Moreover, a dynamic penalty factor accelerated algorithm is proposed in this paper to enhance the decomposition method convergence and efficiency property. The effectiveness and robustness of proposed model and algorithm are validated through case studies based on a 2-area 6-bus system.