A fully distributed economic dispatch strategy for power systems considering flexible loads

Applying the consensus algorithm in Multi-Agent System, this paper proposes a fully distributed economic dispatch strategy for power systems considering flexible loads. Without dispatch center collecting the global information, through the using of information interaction among local buses, the distributed economic dispatch strategy involving flexible loads is achieved. The strategy involves two consensus algorithms running in parallel. The first algorithm is a consensus algorithm which has a power mismatch correction term, the correction term is the global power mismatch calculated by the power mismatch on local bus to ensure the generation-demand balance. The second algorithm uses another distributed consensus algorithm to calculate the global power mismatch on the buses which is used in the first algorithm. The simulation example demonstrates the effectiveness of the distributed economic dispatch strategy for power systems involving flexible loads.