Consistent Economic Control of Distribution Network Considering Event Triggered and Dynamic Weight Updating

Abstract

This paper proposes a distributed control strategy based on consistency principle to realize the autonomous economic control of DC distribution network. We first utilize dynamic weight updating method to realize the "plug and play" for DGs. Then we construct the consistent control protocol for distribution network, in which the secondary adjustment of incremental cost and voltage is introduced into the traditional droop control strategy for DG to realize the autonomous and economic control for distribution network, as well as maintaining the stability of the system; in the meantime, by introducing the event triggered mechanism into the consistency control protocol, the number of unnecessary communication in the system is reduced, thus reducing the communication cost between DGs and improving the stability of communication system. Finally, the simulation results based on the distribution network model verify the effectiveness of the proposed method.